КОМПЕНСАТОР ТОЛЩИНЫ ТКАНИ, ИМЕЮЩИЙ УЛУЧШЕННУЮ ВИДИМОСТЬ

Изобретение относится к медицинской технике и может быть использовано со скобочным хирургическим сшивающим инструментом. Корпус кассеты имеет опорную часть с множеством гнезд с отверстиями для скоб. По меньшей мере часть каждой скобы съемно хранится внутри гнезда для скобы. Каждая скоба выполнена с возможностью перемещения между неактивированным положением и активированным положением и деформации между неактивированной конфигурацией и активированной конфигурацией. Сжимаемый компенсатор толщины ткани включает средство визуализации, выполнен для захвата внутри скоб и по меньшей мере частично покрывает отверстия гнезд для скоб. Компенсатор толщины ткани имеет возможность принимать разные значения высоты в сжатом состоянии внутри разных скоб. 2 н.п. ф-лы, 258 ил.

ХИРУРГИЧЕСКИЙ СШИВАЮЩИЙ ИНСТРУМЕНТ СО СКОБКАМИ ПЕРЕМЕННОЙ ШИРИНЫ, РАСПОЛОЖЕННЫМИ ВДОЛЬ РАЗНЫХ ОКРУЖНОСТЕЙ

Изобретение относится к медицинской технике. Устройство для сшивания ткани включает узел головки, привод с рукояткой, соединенный с узлом головки, и кассету со скобками. Узел головки выполнен с возможностью выталкивания скобок в ответ на приведение в действие привода с рукояткой. Кассета со скобками соединена с узлом головки. Кассета со скобками содержит первую кольцевую окружность отверстий и вторую кольцевую окружность отверстий. Первая кольцевая окружность отверстий включает отверстия, имеющие размер, отличный от размера отверстий второй кольцевой окружности, так что отверстия принимают скобки с головками разной длины. Скобки включают тампоны, которые выполнены с возможностью увеличения площади, занимаемой скобкой. 3 з.п. ф-лы, 20 ил.

КОМПЕНСАТОР ТОЛЩИНЫ ТКАНИ, СОДЕРЖАЩИЙ ЭЛЕМЕНТЫ ВРАСТАНИЯ В ТКАНЬ

Группа изобретений относится к медицинской технике, а именно к хирургическим рассекающим и сшивающим инструментам и используемым в них компенсаторам толщины ткани, содержащим элементы врастания в ткань. Компенсатор, прикрепляемый к упорному элементу сшивающего аппарата, причем упорный элемент содержит формирующую поверхность, и при этом компенсатор содержит крепежный слой, выполненный с возможностью крепления к упорному элементу, и каркас, прикрепленный к крепежному слою. При этом каркас содержит множество каркасных слоев из биосовместимого материала и множество полостей, причем слои и полости образуют матрицу, способствующую врастанию тканей и клеток. Множество каркасных слоев содержит первый слой и второй слой, причем первый лекарственный препарат поглощается в первом слое, а второй лекарственный препарат поглощается во втором слое, при этом первый лекарственный препарат отличается от второго лекарственного препарата. Сшивающий узел для использования с крепежным инструментом содержит ...

КОМПЕНСАТОР ТОЛЩИНЫ ТКАНИ, СОСТОЯЩИЙ ИЗ МНОЖЕСТВА МАТЕРИАЛОВ

Изобретение относится к медицинской технике, а именно к хирургическим рассекающим и сшивающим аппаратам и используемым в них компенсаторам толщины ткани, состоящим из множества материалов. Предложен компенсатор, прикрепляемый к упорному элементу сшивающего аппарата, в котором упорный элемент содержит формирующую поверхность, при этом компенсатор содержит первый слой, второй слой и соединительную часть. Первый слой содержит первые волокна и вторые волокна, причем первые волокна состоят из первого материала, а вторые волокна состоят из второго материала. Первый материал отличается от второго материала, и при этом первые волокна и вторые волокна находятся в первом слое в первом соотношении. Второй слой содержит первые волокна и вторые волокна, причем первые волокна и вторые волокна находятся во втором слое во втором соотношении, и при этом первое соотношение отличается от второго соотношения. Вторые волокна вплетены в первые волокна в первом слое, и первые волокна вплетены во вторые волокна ...

ЭЛЕМЕНТ ПРЕДОХРАНИТЕЛЬНОГО ПЕРЕКЛЮЧАТЕЛЯ СШИВАЮЩЕГО ТКАНЬ ИНСТРУМЕНТА ДЛЯ ПРЕДОТВРАЩЕНИЯ ПРЕЖДЕВРЕМЕННОГО ОТКРЫТИЯ БРАНШИ

Изобретение относится к медицине. Хирургический сшивающий инструмент содержит узел упора, стержень упора, выталкиватель, активирующее плечо, предохранительный переключатель и предохранительный элемент. Узел упора соединяется со стержнем упора. Выталкиватель выталкивает множество скоб в ткань. Активирующее плечо находится в связи с хирургическим сшивающим инструментом и выполнено с возможностью активации выталкивателя для выталкивания множества скоб в ткань. Предохранительный переключатель выполнен с возможностью перемещения между заблокированным и незаблокированным положением. Предохранительный переключатель предотвращает эксплуатацию активирующего плеча, когда предохранительный переключатель находится в заблокированном положении. Предохранительный переключатель позволяет эксплуатацию активирующего плеча, когда предохранительный переключатель находится в незаблокированном положении. Предохранительный элемент предотвращает эксплуатацию выталкивателя, когда предохранительный переключатель ...

ХИРУРГИЧЕСКИЙ СШИВАЮЩИЙ ИНСТРУМЕНТ С ДИСКРЕТНЫМ РЕГУЛИРОВАНИЕМ ВЫСОТЫ СКОБ И ТАКТИЛЬНОЙ ОБРАТНОЙ СВЯЗЬЮ

Изобретение относится к медицине. Хирургический сшивающий инструмент включает корпус, сшивающую головку, присоединяемую к корпусу, упорную пластину и регулирующий стержень упорной пластины. Упорная пластина удерживается подвижно относительно сшивающей головки для избирательного перемещения к сшивающей головке и от сшивающей головки. Регулирующий стержень упорной пластины удерживается корпусом для избирательной регулировки положения упорной пластины относительно сшивающей головки. Регулирующий стержень и/или корпус может быть выполнен с возможностью определять, по меньшей мере, одну заданную высоту формирования скоб между упорной пластиной и сшивающей головкой независимо от вращения регулирующего стержня. Регулирующий стержень и/или корпус могут быть выполнены с возможностью давать тактильную обратную связь пользователю, вращающему регулирующий стержень упорной пластины, подавая сигнал о том, что достигнута соответствующая высота формирования скоб. В результате уменьшено количество частей ...

ТКАНЕВЫЙ ЗАЖИМ ДЛЯ ТРАНСАНАЛЬНОЙ ГЕМОРРОИДОПЕКСИИ ИЛИ ГЕМОРРОИДЭКТОМИИ

Изобретение относится к медицине. Хирургический тканевый зажим для удержания выпавшей ткани во время геморроидопексии или геморроидэктомии содержит длинный вставной стержень, рукоятку и зажимную головку. Зажимная головка содержит проксимальный зажим и дистальный зажим, который выполнен с возможностью взаимодействия с проксимальным зажимом (5) для зажима выпавшей ткани (10). Приводное устройство (8) оперативно соединено с проксимальным и дистальным зажимами (5, 6) и выполнено с возможностью сближения зажимов и удержания зажимов в конфигурации зажима ткани. Зажимающая головка (2) определяет, по меньшей мере, одну проксимальную апертуру (11) доступа, выполненную с возможностью показа зажатой ткани проксимально. Технический результат - обеспечение достаточного доступа к выпавшей ткани с помощью дополнительных хирургических инструментов. 9 з.п. ф-лы, 17 ил.

КРУГОВОЙ СШИВАЮЩИЙ ИНСТРУМЕНТ С ВЫБОРОМ УПРАВЛЕНИЯ С ИСПОЛЬЗОВАНИЕМ ЭЛЕКТРОПРИВОДА И РУЧНОГО УПРАВЛЕНИЯ

Группа изобретений относится к медицинской технике, а именно к устройству для сшивания ткани. Устройство для сшивания ткани содержит узел сшивающей головки, узел ствола и узел рукоятки. Узел ствола соединен с узлом сшивающей головки. Узел рукоятки соединен с узлом ствола. Узел рукоятки содержит двигатель, устройство расположения кожуха двигателя и узел выбора. Двигатель расположен внутри кожуха двигателя. Устройство расположения кожуха двигателя соединено с проксимальным концом кожуха двигателя. Устройство расположения корпуса двигателя выполнено с возможностью поступательного перемещения между проксимальным положением и дистальным положением, причем двигатель выполнен с возможностью поступательного перемещения совместно с устройством расположения кожуха. Узел выбора выполнен с возможностью выбора между режимом работы узла сшивающей головки с использованием электропривода или ручного режима работы узла сшивающей головки на основании положения устройства расположения кожуха двигателя. Во ...

ИЗОГНУТЫЙ КОНЦЕВОЙ РАБОЧИЙ ОРГАН ДЛЯ СШИВАЮЩЕГО ИНСТРУМЕНТА

Группа изобретений включает кассету со скобками и концевой рабочий орган хирургического сшивающего инструмента, относится к области медицинской техники и предназначена для использования в области хирургии. Кассета со скобками включает корпус, содержащий пластину, множество первых и вторых полостей для скобок, множество приводных устройств, искривленный продольный проход и сжимаемый компенсатор толщины тканей. Множество первых полостей для скобок расположены вдоль первой кривой, причем указанная первая кривая определяется первым радиусом кривизны, и при этом каждая указанная первая полость для скобок содержит отверстие в указанной пластине. Множество вторых полостей для скобок расположены вдоль второй кривой, причем указанная вторая кривая определяется вторым радиусом кривизны, при этом указанный первый радиус кривизны отличается от второго радиуса кривизны, при этом каждая указанная вторая полость для скобок включает отверстие в указанной пластине. Множество приводных устройств для скобок ...

ИМПЛАНТИРУЕМЫЕ КОНСТРУКЦИИ ДЛЯ ХИРУРГИЧЕСКИХ КАРТРИДЖЕЙ СО СКОБКАМИ

Изобретение относится к медицине и может быть использовано для наложения хирургического скобочного шва. Картридж содержит корпус, панель с покрывающим слоем и съемные крепежные элементы, которые хранятся внутри корпуса. Корпус имеет продольный паз для приема режущего элемента. Слой включает первый слой и второй слой. Первая часть слоя проходит над пазом. Вторая часть расположена латерально по отношению к первой части и пазу. Характеристики первой части и второй части отличаются. Первая часть может быть толще, чем вторая часть или первая часть может быть жестче, чем вторая часть. Первая часть жестко поддерживает ткани, которые примыкают к продольному разрезу, проходящему через ткани и выполненному с помощью режущего элемента. Вторая часть, расположенная дальше от продольного разреза в тканях, может гибко поддерживать такие ткани. 5 н. и 22 з.п. ф-лы, 90 ил.

ХИРУРГИЧЕСКАЯ ИНСТРУМЕНТАЛЬНАЯ СИСТЕМА (ВАРИАНТЫ)

Группа изобретений относится к медицинской технике, а именно к хирургической инструментальной системе. Хирургическая инструментальная система содержит рукоятку, первый ствол и второй ствол. Рукоятка содержит электрический двигатель и исполнительный механизм. Исполнительный механизм выполнен с возможностью приведения в действие электродвигателя. Первый ствол, прикрепляемый к рукоятке, содержит первый концевой эффектор и первую приводную систему. Первый концевой эффектор содержит первый упор и первую кассету со скобками. Первая приводная система выполнена с возможностью осуществления функции первого концевого эффектора. Первая приводная система выполнена с возможностью взаимодействия при работе с электрическим двигателем, причем электрический двигатель выполнен с возможностью функционирования в первом направлении для выполнения функции первого концевого эффектора. Второй ствол, прикрепляемый к рукоятке вместо первого ствола, содержит второй концевой эффектор и вторую приводную систему. Второй ...

ХРАПОВОЙ ЭЛЕМЕНТ НА СПУСКОВОМ МЕХАНИЗМЕ ДЛЯ СШИВАНИЯ ТКАНИ ДЛЯ ПРЕДОТВРАЩЕНИЯ ПРЕЖДЕВРЕМЕННОГО ОТКРЫТИЯ БРАНШИ

Изобретение относится к медицине. Хирургический инструмент включает в себя корпус, шарнирный спусковой механизм и храповой узел. Храповой узел может включать в себя поворотный храповик, соединенный со спусковым механизмом, и предохранитель, соединенный с корпусом. Поворотный храповик включает наклонную поверхность, которая отцепляет храповик от предохранителя. Высвобождающий элемент предназначен для избирательного отцепления второго элемента храпового узла от первого элемента и включает поворотную ручку или рукоятку, выполненную с возможностью скольжения. Храповой узел имеет первый элемент, соединенный с приводом, и второй элемент, соединенный с корпусом. Узел включает элемент блокировки, соединенный с корпусом, который избирательно зацепляет множество зубцов, размещенных на приводе. Альтернативно узел может включать в себя шарнирный предохранитель, соединенный с приводом, который зацепляет одну или более бороздок, образованных в корпусе. 3 н. и 17 з.п. ф-лы, 18 ил.

КРУГОВОЙ СШИВАЮЩИЙ ИНСТРУМЕНТ, ИМЕЮЩИЙ ИСПОЛНИТЕЛЬНЫЙ МЕХАНИЗМ ОТ ДВИГАТЕЛЯ И ВХОД ВРАЩЕНИЯ, С МОДУЛЬНЫМ КОНЦЕВЫМ ЭФФЕКТОРОМ

Изобретение относится к медицинской технике, а именно к хирургическому круговому сшивающему устройству. Хирургическое круговое сшивающее устройство содержит узел корпуса, поворотный приводной стержень и сшивающий узел. Поворотный приводной стержень выполнен с возможностью поступательного перемещения между первым продольным положением и вторым продольным положением относительно узла корпуса. Сшивающий узел содержит упор, платформу для скоб, выталкиватель скоб, первый приводной элемент и второй приводной элемент. Выталкиватель скоб выполнен с возможностью выталкивания скоб через платформу для скоб к упору. Первый приводной элемент выполнен с возможностью перемещения упора к платформе для скоб в ответ на поворот приводного стержня в первом продольном положении. Второй приводной элемент выполнен с возможностью перемещения выталкивателя скоб к упору в ответ на поворот приводного стержня во втором продольном положении. Использование изобретения обеспечивает возможность зажатия, рассечения и сшивания ...

КОМПЕНСАТОРЫ ТОЛЩИНЫ ТКАНИ

... 1. Хирургический сшивающий инструмент, содержащий:картридж со скобками, содержащий корпус картриджа, содержащий множество полостей для скобок и множество скобок, расположенных внутри полостей для скобок;упорный элемент, выполненный для взаимодействия с корпусом картриджа, содержащую по меньшей мере одну формирующую скобку поверхность;первый компенсатор толщины ткани, прикрепленный к корпусу картриджа с возможностью снятия, причем первый компенсатор толщины ткани содержит первую толщину; ивторой компенсатор толщины ткани, прикрепленный к упорному элементу с возможностью снятия, причем второй компенсатор толщины ткани содержит вторую толщину, при этом первый и второй компенсаторы толщины ткани выполнены с возможностью быть захваченными внутри скобок и принимать разные высоты в сжатом состоянии, внутри разных скобок, причем сумма первой толщины и второй толщины равна по меньшей мере минимальной толщине, обеспечивающей должную компенсацию толщины ткани внутри скобок.2. Хирургический сшивающий ...

КОНСТРУКЦИЯ ТРАНСМИССИИ ДЛЯ ХИРУРГИЧЕСКОГО ИНСТРУМЕНТА

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МЕДИЦИНСКОЕ УСТРОЙСТВО ДЛЯ АНАСТОМОЗА

ИНТРОДУКТОР КРУГОВОГО СШИВАЮЩЕГО ИНСТРУМЕНТА С ЛЕГКОСЪЕМНЫМ УЗЛОМ ЖЕСТКОГО КОЛПАЧКА

... 1. Интродуктор для введения в организм пациента хирургического кругового сшивающего инструмента, имеющего часть рукоятки, удлиненный ствол, выходящий из части рукоятки, и сшивающую головку, соединенную с удлиненным стволом, причем указанный интродуктор содержит:полую гибкую оболочки, имеющую дистальный конец и открытый проксимальный конец, причем указанная полая гибкая оболочка выполнена с возможностью введения в нее сшивающей головки и по меньшей мере части удлиненного ствола; иузел жесткого колпачка, присоединенный к указанному дистальному концу указанной полой гибкой оболочки, причем указанный узел жесткого колпачка выполнен с возможностью выборочного перемещения между закрытым положением, в котором дистальная поверхность сшивающей головки закрыта указанным узлом жесткого колпачка, когда сшивающая головка полностью вставлена в него, и открытым положением, в котором указанный узел жесткого колпачка может быть извлечен в проксимальном направлении из положения, в котором он покрывает сшивающую ...

ХИРУРГИЧЕСКИЙ СШИВАЮЩИЙ ИНСТРУМЕНТ С ЗАМЕНЯЕМЫМИ КАССЕТАМИ СО СКОБКАМИ

... 1. Хирургический инструмент, включающий:узел рукоятки;удлиненный узел штока, смонтированный на указанном узле рукоятки и выступающий из нее, причем указанный удлиненный узел штока включает:удлиненный центральный элемент, который имеет дистальный конец, предназначенный для съемного присоединения концевого эффектора, а такжепусковую трубку, способную аксиально перемещаться вдоль указанного удлиненного центрального элемента, и взаимодействовать с пусковой системой, которая поддерживается указанным узлом рукоятки, чтобы заставлять указанную пусковую трубку избирательно двигаться на указанном центральном элементе таким образом, что указанная пусковая трубка может выборочно перемещаться в аксиальном направлении из неактивного положения, в котором дистальный конец центрального элемента съемным образом соединяется с частью концевого эффектора, в положение зацепления, в котором дистальная часть указанной пусковой трубки удерживает указанную часть указанного концевого эффектора в зацеплении с указанным ...

Хирургический инструмент, содержащий отдельные системы для скрепления ткани и разрезания ткани

КОНСТРУКЦИИ ХИРУРГИЧЕСКИХ СКОБ И ВЫТАЛКИВАТЕЛЕЙ ДЛЯ КАССЕТ СО СКОБАМИ

РАСПОЛОЖЕНИЕ СЛОЕВ ДЛЯ ХИРУРГИЧЕСКИХ КАРТРИДЖЕЙ СО СКОБКАМИ

КОМПЕНСАТОР ТОЛЩИНЫ ТКАНИ ДЛЯ ХИРУРГИЧЕСКОГО СШИВАЮЩЕГО ИНСТРУМЕНТА, СОДЕРЖАЩИЙ РЕГУЛИРУЕМЫЙ УПОР

... 1. Хирургический сшивающий инструмент, содержащийкассету со скобками, содержащую:корпус кассеты, содержащий множество гнезд для скобок; имножество скобок, расположенных внутри указанных гнезд для скобок;узел упора, содержащий:раму упора;упор, содержащий позиционирующую поверхность и по меньшей мере одну поверхность для формирования скобок, причем указанный упор удерживается с возможностью перемещения по указанной раме упора; ирегулирующий элемент, выполненный с возможностью перемещения и установки между указанной рамой упора и указанным упором, причем указанный регулирующий элемент содержит первую ступень, имеющую первую высоту, и вторую ступень, имеющую вторую высоту, причем указанная вторая высота отличается от указанной первой высоты, и причем указанный регулирующий элемент выполнен с возможностью перемещения между первым положением и вторым положением избирательно для расположения одной из указанной первой ступени и указанной второй ступени между указанной рамой упора и указанной позиционирующей ...

КОМПЕНСАТОР ТОЛЩИНЫ ТКАНИ, СОДЕРЖАЩИЙ КАПСУЛУ ДЛЯ СРЕДЫ С НИЗКИМ ДАВЛЕНИЕМ

... 1. Картридж со скобками, содержащий:корпус картриджа, содержащий полости для скобок;скобки, размещенные с возможностью извлечения в полостях для скобок, при этом скобки могут выталкиваться из полостей для скобок; икомпенсатор, содержащий емкость, причем емкость образует герметичную внутреннюю полость, причем герметичная внутренняя полость содержит внутреннюю атмосферу, при этом внутренняя атмосфера имеет давление ниже атмосферного давления, если емкость находится в неповрежденном состоянии, причем скобки выполнены с возможностью разрыва емкости, когда скобки выталкиваются из полостей для скобок.2. Картридж со скобками по п. 1, причем компенсатор выполнен с возможностью расширяться между смятым состоянием и расширенным состоянием, когда емкость разрывается скобками.3. Картридж со скобками по п. 2, в котором емкость ограничена стенкой емкости, причем стенка емкости изогнута, например является круглой, когда компенсатор находится в расширенном состоянии, и при этом стенка емкости сплющена, ...

КОМПЕНСАТОР ТОЛЩИНЫ ТКАНИ, СОДЕРЖАЩИЙ МНОЖЕСТВО КАПСУЛ

... 1. Способ производства компенсатора толщины ткани, включающий:получение раствора, содержащего гидрофильный материал;растворение лекарственного средства в указанном растворе;смешивание раствора с гидрофобным материалом;заливание раствора в форму для литья илиофилизацию раствора.2. Способ по п. 1, в котором лиофилизация включает помещение формы для литья в вакуумную камеру, снижение атмосферного давления внутри вакуумной камеры и снижение температуры внутри вакуумной камеры.3. Способ по п. 1 или 2, в котором в результате лиофилизации получают лист материала, и причем способ дополнительно включает разрезание листа материала.4. Способ по п. 1, в котором лекарственное средство растворяют в микрочастицах в растворе.5. Способ по п. 4, в котором микрочастицы суспендируют в гидрофобном материале после смешивания раствора и гидрофобного материала.6. Компенсатор толщины ткани для применения в сшивающем инструменте, содержащий:сжимаемый слой, выполненный с возможностью по меньшей мере частичного захватывания ...

ХИРУРГИЧЕСКИЙ АППАРАТ С ВОЗМОЖНОСТЬЮ ЗАПИСИ

... 1. Хирургический аппарат, содержащий: концевой эффектор; рычаг, связанный с концевым эффектором; первый датчик, вырабатывающий выходной сигнал, представляющий первое состояние, по меньшей мере, чего-то одного из группы, состоящей из рычага и концевого эффектора; и запоминающее устройство с внешним доступом, связанное с первым датчиком, при этом запоминающее устройство выполнено с возможностью записи выходного сигнала первого датчика. 2. Хирургический аппарат по п.1, в котором запоминающее устройство содержит выходной порт. 3. Хирургический аппарат по п.1, в котором запоминающее устройство содержит сменный носитель данных. 4. Хирургический аппарат по п.1, в котором хирургический аппарат дополнительно содержит второй датчик, связанный с запоминающим устройством, при этом второй датчик вырабатывает выходной сигнал, представляющий второе состояние, по меньшей мере, чего-то одного из группы, состоящей из рычага и концевого эффектора, причем запоминающее устройство дополнительно выполнено с возможностью ...

VORRICHTUNGEN ZUR BEHANDLUNG VON FETTLEIBIGKEIT

Etectrochirurghische, blutstillende klammervorrichtung

Chirurgisches Klammersetzinstrument

Ein chirurgisches Klammersetzinstrument (1) weist einen Rahmen mit einem Körperbereich (2) und einem Handgriff auf. Eine Klammerbefestigungsanordnung (4) ist im distalen Bereich des Instruments (1) vorgesehen und enthält eine Patroneneinrichtung (6), die wenigstens eine geschlossene Reihe von Klammern aufweist, und ein Gegenlager (8). Das Gegenlager (8) ist relativ zu der Patroneneinrichtung (6) bewegbar und ist dazu eingerichtet, zum Umformen der Enden der aus der Patroneneinrichtung (6) austretenden Klammern mit der Patroneneinrichtung (6) zusammenzuwirken. Ein Messer, das eine geschlossene Schneidkante hat, ist innerhalb der Patroneneinrichtung (6) enthalten und ist so positioniert, dass sich zumindest eine geschlossene Klammerreihe außerhalb der Schneidkante befindet. Es kann auf das Gegenlager (8) zu bewegt werden. Die die geschlossene Klammerreihe definierende Linie hat eine Anzahl von Einbuchtungen, so dass die die geschlossene Klammerreihe definierende Linie eine größere Gesamtlänge ...

Chirurgisches Instrument

Um ein chirurgisches Instrument zum Verbinden von Körpergewebe mit einem Schaft und einem ersten und einem zweiten Werkzeugelement, welche Werkzeugelemente relativ zueinander bewegbar angeordnet oder ausgebildet sind und jeweils eine Elektrode umfassen, welche Elektroden in einer Annäherungsstellung der Werkzeugelemente einen minimalen Abstand voneinander definieren, einander gegenüberliegen und aufeinander zu weisen, wobei das erste Werkzeugelement am distalen Ende des Schafts angeordnet oder ausgebildet ist, so zu verbessern, dass eine mechanische Belastung von insbesondere mittels eines Stromflusses erzeugten Körpergewebeteilverbindungen beim Entfernen des chirurgischen Instruments minimiert wird, wird vorgeschlagen, dass das zweite Werkzeugelement von einer Betriebsstellung, in welcher es in die Annäherungsstellung bringbar ist, in eine Entfernungsstellung bringbar ist, in welcher Entfernungsstellung eine von der Elektrode des zweiten Werkzeugelements definierte Rückzugsumfangslinie ...

SURGICAL STAPLER APPARATUS

Precisely aligned anastomosis stapling cartridge and instrument

A surgical stapling apparatus comprising a permanent instrument and a disposable cartridge for anastomosing disconnected sections of hollow body organs. The instrument contains a body 330 defining a bore. A tubular member 350, received within the bore, is arranged for reciprocation motion. A first mechanism 314 is provided to reciprocate the tubular member 350 and thus drive the staples. Mounted concentrically within the tubular member is a rod 352, which includes first and second longitudinally extending keyways (458, 459, figures 1, 10, 20,) of different dimensions. A second mechanism 360 is provided to reciprocate the rod 352. The disposable cartridge 340 comprises a rigid staple- carrying part 344 and a rigid anvil- carrying part 346. The staple-carrying part and the anvil-carrying part each include first and second keys 687, 688 configured to mate, respectively, with the first and second keyways 458, 459 to directly mount the parts in a predetermined indexed orientation on the rod.

Intralumenal anastomosis surgical stapling instrument

A surgical stapling instrument for the joining together of tubular body organs. The instrument comprises an elongated cylindrical body supporting at its distal end a staple carrier containing at least one annular array of staples, a staple driver for each array and a cylindrical scalpel. A conical anvil is located beyond the staple carrier at the distal end of the instrument body and carries an annular anvil plate for clinching the staples of the one or more arrays thereof. The anvil has an elongated shank extending within the instrument body. The anvil and its shank are shiftable axially of the instrument body by an anvil drive screw at the proximal end of the instrument between a position wherein the anvil plate is adjacent the staple carrier and a position wherein the anvil plate is spaced from the staple carrier. An elongated hollow staple driver actuator is located within the instrument body, surrounding the anvil shank and is axially shiftable between a retracted position and a staple ...

Preputial circumcision device

Device for performing anastomosis

To perform anastomosis, a device or suture machine 11 connected to a clip magazine 13 and to a scalpel 14 is introduced into one hollow organ, while a counter- pressure plate 34 connected to an endoscope 37 is introduced into the other hollow organ with the aid of an insertion element 43 which can be connected to the endoscope 37 and has a madrin 44. After reaching the ends of the two hollow organs, a guide stylet 39 protruding from the endoscope 37 is connected to the stylet 17 of the suture machine 11, and the anastomosis is performed after tying the purse-string suture. ...

CAR ARRANGEMENT FOR THE CONTROLLING OF A STEERING MECHANISM FOR A STEERING ELEMENT WIRE IN A FLEXIBLE WAVE

JOINT MECHANISM WITH ELECTRICALACTIVE POLYMER FOR A CIRCULAR SURGICAL CLAMPING DEVICE

GEWEBEKLEMMVORRICTUNG FOR TRANSANALE HÄMORRHOIDOPEXIE OR HÄMORRHOIDEKTOMIE

FLEXIBELES CIRCULAR CLAMPING DEVICE FOR SURGERY AT HOLLOW ORGANS

ELLIPTICAL, INTRALUMINALES SURGICAL CLIP INSTRUMENT FOR ANASTOMOSIS

CLAMPING DEVICE FOR MUKOSEKTOMIE

KLAMMERNAHTINSTRUMENT ZUR DURCHFUEHRUNG EINER ANASTOMOSE

SURGICAL TILTING ANVIL ARRANGEMENT

EINFÜHRVORRICHTUNG FOR TRANSANALANASTOMOSERING

ABSORB-CASH MOUNTING DEVICE FOR ANASTOMOSIS

SURGICAL BOOKLET APPARATUS WITH CURVED SHANK.

SURGICAL APPARATUS FOR THE ATTACHMENT OF WUNDKLAMMERN WITH A FLEXIBLE SHANK.

SURGICAL BOOKLET DEVICE.

ELECTRICALSURGICAL CLAMPING DEVICE

SURGICAL CLIP SEWING EQUIPMENT FOR ANASTOMOSES

SLIDING PROTECTION FUR A HOUSING HEAD OF MEDICAL INSTRUMENTS

Loading unit including shipping assembly

LOADING UNIT INCLUDING SHIPPING ASSEMBLY A loading unit (100) including a shipping assembly (200) is provided. Theshipping assembly (200) is operably received adjacent the cartridge assembly (120) to retain staples with the cartridge assembly (120). The shipping assembly (200) includes a shipping member (202) selectively secured to loading unit (100) and a locking member (206) slidably disposed within the shipping member (202). The locking member (206) is movable between a proximal position wherein the shipping member (202) is secured to the housing (110) and a distal position wherein the shipping member (202) is removable from the housing (110).

Retaining mechanisms for trocar assemblies

RETAINING MECHANISMS FOR TROCAR ASSEMBLIES An adapter assembly (100) for connecting a loading unit (30) to a handle assembly (20), the adapter assembly (100) comprising: an outer sleeve (106); a trocar assembly (120) releasably securable within the outer sleeve (106), the trocar assembly (120) including a trocar housing (122) defining first and second openings; and a retaining mechanism (130) configured to releasably secure the trocar assembly (120) within the outer sleeve (106), the retaining mechanism (130) including a retaining block (140), a cam wire (150) moveably positioned relative to the retaining block (140) between a lock position and a release position, a retaining block extension (160) configured to maintain the cam wire (150) relative to the retaining block (140), a button member (170) in operable engagement with the cam wire (150), and a pair of retaining members (180a, 180b) moveable from a first position received within the first and second openings of the trocar assembly ...

Reload assembly with knife carrier lockout

RELOAD ASSEMBLY WITH KNIFE CARRIER LOCKOUT A surgical stapling device (10) comprising: an adaptor assembly (14) having a proximal end portion and a distal end portion; and a reload assembly (100) supported on the distal end portion of the adaptor assembly (14), the reload assembly (100) including: a shell housing (110 including an outer housing portion (140) and an inner housing portion (142), the inner and outer housing portions (140, 142) defining an annular cavity (144) therebetween; a staple cartridge (118) supporting a plurality of staples (120) supported on the shell housing (110); a staple pusher (112a) supported within the annular cavity (144) and movable from a retracted position to an advanced position to eject staples (120) from the staple cartridge (118); a staple actuator (112) supported within the annular cavity (144) and having a stop surface (184), the staple actuator (112) positioned to engage the staple pusher (112a) and movable from a retracted position to an advanced ...

Handle assembly and stapler including the same

A handle assembly and an anastomat comprising same. The handle assembly comprises: a first handle member provided with a sliding slot (41), a first sliding block (42) being slidably provided in the sliding slot (41), one end of the sliding block (42) being provided with a first limiting structure (43), a second section (412) of the sliding slot (41) being provided with a second limiting structure (44), and a compression spring (45) being provided between the two limiting structures (43, 44); and a second handle (2), a first end of the second handle (2) being rotatably connected to the first handle member, and the sliding block (42) moving toward the second section (412) of the sliding slot (41) under external force. When the first handle member is rotated in a first direction, the compression spring (45) is deformed, and the sliding block (42) abuts against the second handle (2) and pushes the second handle (2) to rotate; and when the sliding block (42) is released from the external force ...

Handle assembly and anastomat comprising same

A handle assembly and an anastomat comprising same. The handle assembly comprises: a first handle member provided with a sliding slot (41), a first sliding block (42) being slidably provided in the sliding slot (41), one end of the sliding block (42) being provided with a first limiting structure (43), a second section (412) of the sliding slot (41) being provided with a second limiting structure (44), and a compression spring (45) being provided between the two limiting structures (43, 44); and a second handle (2), a first end of the second handle (2) being rotatably connected to the first handle member, and the sliding block (42) moving toward the second section (412) of the sliding slot (41) under external force. When the first handle member is rotated in a first direction, the compression spring (45) is deformed, and the sliding block (42) abuts against the second handle (2) and pushes the second handle (2) to rotate; and when the sliding block (42) is released from the external force ...

Universal linear surgical stapling buttress

UNIVERSAL LINEAR SURGICAL STAPLING BUTTRESS A surgical buttress carrier assembly (200), comprising: a buttress carrier (204) having a body and lateral sides, the carrier (204) having a plurality of distally extending arms on each of the lateral sides, the lateral sides including a first lateral side and a second lateral side, the first lateral side being opposite the second lateral side; and a buttress material (202) having an elongate shape, a distal end, and a first lateral side and a second lateral side, the buttress material having a plurality of openings at the buttress first lateral side and buttress second lateral side, the plurality of openings corresponding to the plurality of distally extending arms; and an elongate member (502) extending proximally from the buttress carrier (204), the buttress carrier (204) being separated from the buttress material when the elongate member (502) is pulled. cl/ ...

Anastomosis composite gasket

ANASTOMOSIS COMPOSITE GASKET The present disclosure provides structures and/or gaskets for deposition between adjacent intestinal sections in an anastomosis procedure. The structure possesses at least an inner ring of a first material, and a middle ring of a second material. The first material and the second material include a wound treatment material consisting of at least one of an adhesive, a sealant and/or a medicament. The first material is different from the second material. 10 to 104a 104b 104a * - 68 ...

Circular stapler for hemorrhoid operations

Insertion shroud for surgical instrument

Elliptical intraluminal surgical stapler for anastomosis

Structure containing wound treatment material

Adhesive suture structure and methods of using the same

Electrically self-powered surgical instrument with manual release

An electrically operated surgical instalment includes a surgical end effector having an actuation assembly effecting a surgical procedure when actuated and a handle connected to the end effector for actuating the assembly. A part of the assembly moves between start and fully actuated positions. The handle has a self-contained power supply and a drive assembly disposed entirely within the handle. The drive assembly has an electrically powered motor and a controller electrically connected to the power supply and to the motor. The controller selectively operates the motor. A transmission mechanically connects the motor to the moving part and selectively displaces the moving part anywhere between the start and fully extended positions when the motor is operated. A manual release is mechanically coupled to the transmission to selectively interrupt the transmission and, during interruption, displaces the moving part towards the start position independent of motor operation.

Electrical surgical instrument

Abstract Electrical Surgical Instrument A hand-held, electrically powered and controlled surgical stapler/cutter (1) includes a handle (10) shaped to fit in one hand of a user. The handle (10) has a selectively actuated, self-contained electric power supply (600) having at least one battery cell. The handle further includes at least part of an anvil control assembly (100) and at least part of an electrically-powered stapler/cutter control assembly electrically connected to the power supply (600). A surgical end effector is connected to the handle (10) and is operatively connected to each of the anvil control assembly (100) and the stapler/cutter control assembly (200). The stapler/cutter control assembly (200) staples and cuts tissue disposed at the surgical end effector when powered by the power supply (600).

Surgical instruments with reconfigurable shaft segments

A surgical instrument having a handle assembly and an elongated shaft assembly protruding therefrom. Various embodiments of the elongated shaft assemblies include reconfigurable shaft segments that have portions that may be selectively arranged in coaxial alignment with each other and in other configurations wherein at least some portions thereof are not in coaxial alignment with each other. Various locking arrangements are disclosed for releasably locking the reconfigurable shaft segments in desired orientations. A movable closure tube is supported on the elongated shaft segment and is oriented to provide actuation motions to an end effector coupled to the distal end of the elongated shaft.

Fastener system comprising a plurality of fastener cartridges

A surgical fastening instrument can comprise a handle and an end effector, wherein the end effector can comprise a first jaw comprising a first cartridge attachment portion and a second jaw comprising a second cartridge attachment portion, and wherein one of the first jaw and the second jaw is movable relative to the other of the first jaw and the second jaw. The surgical fastening instrument can further comprise a first cartridge that is insertable into the first jaw and attachable to the first cartridge attachment portion and, in addition, a second cartridge that is insertable into the second jaw and attachable to the second cartridge attachment portion. In various embodiments, the first cartridge can comprise first fastener portions which are engageable with second fastener portions in the second cartridge.

Spinal disc annulus reconstruction method and spinal disc annulus stent

Cco, C ?1 There is provided a method of treating a defect in the annulus fibrosus of an intervertebral disc. The method comprises providing a device delivery tool; providing a device, the device having a first anchor and a second anchor, said first and second anchors connected by at least one connecting member; and piercing the intervertebral disc with said device delivery tool at a first location. The first anchor is disposed into intervertebral disc tissue at the first location. The intervertebral disc is pierced with said device delivery tool at a second location at which the second anchor is disposed into intervertebral disc tissue. Tension is applied to one of said at least one said connecting members to foreshorten one of said at least one connecting members between the first and second anchors.

Fastener system comprising a plurality of connected retention matrix elements

A surgical fastener system can comprise a plurality of fasteners which can be connected to each other by a flexible retention matrix which is assembled to the fasteners in order to capture tissue therebetween. The flexible retention matrix can comprise, one, a plurality of retention matrix elements configured to engage the fasteners and, two, a lattice of connectors which connect one or more retention matrix elements.

Circular stapler including buttress

CIRCULAR STAPLER INCLUDING BUTTRESS A surgical stapling device (10) for joining tissue portions includes a handle assembly (12), and a tubular body portion (100) having a staple cartridge assembly (102) containing a plurality of surgical staples in an annular array. The surgical stapling device (10) includes an anvil assembly (200) having a shaft (114) for removably connecting the anvil assembly (200) to the tubular body portion (100). The anvil assembly (200) and the tubular body portion (100) are juxtaposed with respect to one another along the shaft (114) and are arranged so as to be approximated with respect to one another. The surgical stapling device (10) includes a buttress material (300) supported by the tubular body portion (100) and disposed between the anvil assembly (200) and the staple cartridge assembly (102). The surgical stapling device (10) includes a suture material (500) that is adapted for engagement with the tubular body portion (100) and the buttress material (300) ...

Surgical stapler anvil comprising a plurality of forming pockets

A fastener cartridge can comprise a support portion, a tissue thickness compensator positioned relative to the support portion, and a plurality of fasteners positioned within the support portion and/or the tissue thickness compensator which can be utilized to fasten tissue. In use, the fastener cartridge can be positioned in a first jaw of a surgical fastening device, wherein a second jaw, or anvil, can be positioned opposite the first jaw. To deploy the fasteners, a staple- deploying member is advanced through the fastener cartridge to move the fasteners toward the anvil. As the fasteners are deployed, the fasteners can capture at least a portion of the tissue thickness compensator therein along with at least a portion of the tissue being fastened.

Circular stapler and staple line reinforcement material

CIRCULAR STAPLER AND STAPLE LINE REINFORCEMENT MATERIAL Abstract A surgical stapling instrument (10) comprises a staple cartridge assembly (22) having a plurality of rows (37) of staple receiving slots (36), an anvil assembly (130) having an anvil member (126) defining a plurality of rows of staple forming recesses (127), the staple cartridge assembly (22), the anvil assembly (130), or both, having one or more attachment members (132); and a staple line reinforcement material (50) attached to the attachment members (132) by ultrasonic welding. The staple line reinforcement material (50) can be attached to an anvil assembly utilizing a retainer (60). (00 'CI4 CEE) = FIG. 7 126 152 126 127 142 c-im cvcn ...

Surgical device including buttress material

SURGICAL DEVICE INCLUDING BUTTRESS MATERIAL The present disclosure provides a surgical stapling device .(10) and a method for joining tissue portions. The surgical stapling device (10) includes a handle assembly (1 2) and a tubular body portion (100) supported on a distal end of the handle assembly (12) having a staple cartridge assembly (102) containing a plurality of surgical staples in an annular array. An anvil assembly (200) is at a distal end of the stapling device (10) and has a shaft (110) for removably connecting the anvil assembly (200) to the tubular body portion (100). The anvil assembly (200) and tubular body portion (100) are juxtaposed with respect to one another along the shaft (110) and are arranged so as to be approximated with respect to one another. A support member (108) extends from the tubular body portion (100) towards the anvil assembly (200) and a buttress material (300) is supported by the support member (108) and removably attached to the support member (108) ...

Vacuum assisted surgical stapler

Rotary knife cutting systems

ROTARY KNIFE CUTTING SYSTEMS There are disclosed rotary cutting systems for use with circular surgical stapling devices. The rotary cutting systems (40) generally include a circular knife blade (30) and 5 a mainspring (42) for imparting rotary motion to the circular knife blade (30). A latch mechanism is provided to maintain the knife blade (30) on a linear travel path during a first predetermined distance and to release the circular knife blade (30) for rotation due to the bias of the mainspring (42) along a second predetermine distance. The circular knife blade (30) may be rotated by the mainspring (42) itself or, in an alternative embodiment, io may be driven by frictional engagement with a rotational hammer (112).

Transwall visualization arrangements for surgical circular staplers

A surgical instrument is disclosed. Various embodiments include an elongated shaft that defines a central axis and has a distal end portion that is configured to operably support a circular staple cartridge therein. At least one detection member may be operably supported within the elongated shaft. Each detection member may have a distal portion that is radially deployable away from the central axis upon application of a deployment motion thereto. The distal end portions may have a bumper or light mounted thereto.

Electrical surgical instrument

Abstract ELECTRICAL SURGICAL INSTRUMENT A surgical instrument (1) includes a surgical end effector having at least one actuation assembly to effect a surgical procedure when actuated. An electric motor (120) is operationally connected to the end 5 effector to operate the at least one actuation assembly. A power supply (600) is electrically connected to the motor (120) and selectively powers the motor (120) to actuate the at least one actuation assembly. The power supply (600) has at least one battery cell with a critical current rate. When activated to power the motor (120) and actuate the at least one actuation assembly, the power supply (600) operates the at least one battery cell at a super-critical current rate.

Devices and methods for stomach partitioning

System for delivering an anvil assembly to a surgical site

SYSTEM FOR DELIVERING AN ANVIL ASSEMBLY TO A SURGICAL An anvil assembly delivery system (50) includes an anvil assembly (110) having a center rod (152) and an anvil head assembly (112) pivotally secured to the center rod (152), a flexible tube (52) having a first end (52b) configured for oral insertion into a patient and a second end (52a) engaged with the anvil assembly (110), and a retrieval suture(S 2)connected to the head assembly (112) positioned to extend from the anvil assembly (110) in a direction opposite to the flexible tube (52). The anvil assembly delivery system (50) also includes a spacer suture tube (210) positioned adjacent the anvil head assembly (112) and defining a suture channel (212), which is supported on the retrieval suture(S 2)and is dimensioned to prevent the retrieval suture (S 2)from becoming trapped in the staple line of a stapling device (10). In an embodiment, the spacer (210) is a suture tube (210) defining a suture channel (212) which receives the retrieval ...

Rotary powered surgical instruments with multiple degrees of freedom

A surgical instrument may comprise a drive system that is configured to electrically generate a plurality of discrete rotary control motions. In at least one form, the surgical instrument may include an elongate shaft assembly that is operably couplable to the drive system for receiving a first rotary control motion therefrom for rotating the elongate shaft assembly about a shaft axis. The elongate shaft assembly may be further configured to receive and transmit a second rotary control motion from the drive system to a surgical end effector that is operably coupled to the elongate shaft assembly to cause the surgical end effector to rotate about the shaft axis relative to the elongate shaft assembly. The elongate shaft assembly may be further configured to receive and transmit a third rotary control motion from the drive system to an articulation joint that communicates with the elongate shaft assembly and the surgical end effector to articulate the surgical end effector about an articulation ...

Anvil assemblies and delivery systems

ANVIL ASSEMBLIES AND DELIVERY SYSTEMS An anvil assembly (110) suitable for trans-oral delivery includes an anvil head (112) configured to receive a suture ("S") that secures the anvil head (112) in a delivery position and is separable from the anvil head (112) following delivery of the anvil assembly (110). An anvil delivery assembly includes the anvil assembly (110), a delivery assembly (50) secured to the anvil assembly (110), and a suture ("S") selectively secured to the anvil assembly (110) for securing the anvil assembly (110) in a delivery position and retrieving the anvil assembly (110).

EEA abdominal access device

EEA ABDOMINAL ACCESS DEVICE A surgical system (100) is disclosed, and includes a surgical fastening apparatus (10) and an access device (50). The access device (50) defines an internal lumen configured to receive the surgical fastening apparatus (10). The access device (50) also includes a proximal portion (50a) and a distal portion (50b) being more flexible than the proximal portion (50a). The access device (50) is reconfigurable between a first condition and a different, second condition in which the distal portion (50b) of the access device (50) is configured to fold radially inwardly and proximally upon movement of the surgical fastening apparatus (10) therewith. r-C ...

Buttress attachment to degradable polymer zones

BUTTRESS ATTACHMENT TO DEGRADABLE POLYMER ZONES Abstract An end effector assembly (16) for use with a surgical stapler (10), the end effector (16) comprises a staple cartridge assembly (200) having a tissue contacting surface (220) and an anvil assembly (300) having a tissue contacting surface (320). A surgical buttress (500) configured and dimensioned to substantially overlie at least a portion of the tissue contacting surface (220, 320) of at least one of the staple cartridge assembly (200) and anvil assembly (300). A plurality of attachment pads (240) secured to at least one of the tissue contacting surface (220, 320) of the at least one staple cartridge assembly (200) and anvil assembly (300) configured to retain the respective buttress material thereto, wherein the surgical buttress (500) is ultrasonically welded to each of the plurality of attachment pads (240). c~;15 o v~ba"7100c ...

Buttress fixation for a circular stapler

A stapling apparatus (10) has a buttress material (74) removably attached thereto by at least one anchor (72). The apparatus (10) has a pusher (64) with a protrusion for engaging the at least one anchor (72) and releasing the buttress material (74). (7829082 1)mml ...

Loading unit velocity and position feedback

LOADING UNIT VELOCITY AND POSITION FEEDBACK A loading unit (20) for a surgical stapling device has a cartridge assembly (508) and an anvil assembly (506), the cartridge assembly (508) including a channel (516) and a staple cartridge (518) having a plurality of surgical staples (530) therein. An axial drive assembly (560) has a clamping member (606), the clamping member (606) having an upper flange (606b) for engaging the anvil assembly (506), and a lower flange (606c) for engaging the channel (516). The axial drive assembly (560) is movable through the staple cartridge (518) to drive the staples (530) out of the staple cartridge (518) and against the anvil assembly (506). Mechanical features are defined in the channel (516) for indicating an end of stroke for the axial drive assembly (560), the mechanical features having a first pattern and a second pattern. LA-I Lo -CM cO !F! to ...

Staple cartridges

A fastener cartridge assembly for use with a circular surgical fastening device. The fastener cartridge assembly includes a cartridge body that has a circular deck. A plurality of fastener cavities is provided in the circular deck. Each fastener cavity includes two cavity ends wherein one cavity end of each of the fastener cavities is positioned on a first circular axis having a first radius and wherein the other cavity end of each fastener cavity is positioned on a second circular axis that has a second radius that differs from the first radius.

Surgical stapling apparatus

A surgical stapling apparatus (10) having an adjustable minimum tissue gap (G) is provided. The surgical stapling apparatus (10) includes a proximal handle portion (20), an elongated central body portion (30), a distal head portion (40), an anvil assembly (50), and an approximation assembly (100). The approximation assembly (100) includes a drive screw (140), a screw stop (150), and a screw extension (160). The adjustable minimum tissue gap (G) can be adjusted by selectively securing the screw extension (160) to the drive screw (140) using a first or second pair of openings (145, 147) of the drive screw (140). A method is also provided to determine the minimum tissue gap (G) of the surgical stapling apparatus (10).

Pouch used to deliver medication when ruptured

POUCH USED TO DELIVER MEDICATION WHEN RUPTURED Abstract An anvil assembly (26) for a circular stapling device (10) includes an anvil head (34) configured to support an anvil plate (36) thereon, a shaft (28) extending from the 5 anvil head (34) and configured to selectively engage a rod member of the circular stapling device (10), an anvil plate (36) operatively connected to the anvil head (34), wherein the anvil plate (36) includes an inner diametral edge, and wherein the anvil plate (36) defines a plurality of staple forming pockets (38) therein at a location radially outward of the inner diametral edge, a recess formed in the anvil head (34), wherein the recess is defined 1o by the inner diametral edge of the anvil plate (36) and a rear surface of the anvil head (34), and a wound treatment material disposed substantially within the recess. co C'%D c'Jo 34b 104 36a - 38 ----- CC~j a a ...

Buttress attachment to the cartridge surface

BUTTRESS ATTACHMENT TO THE CARTRIDGE SURFACE An end effector (16) for use with a surgical apparatus (10). The end effector (16) comprising a staple cartridge (32) having a tissue contacting surface (220) defining a central longitudinal slot (238) and an anvil plate (302) having a tissue contacting surface (320) defining a central longitudinal slot (338). A surgical buttress (500) releasbly disposed on the tissue contacting surfaces (220, 320) of each of the staple cartridge (32) and anvil plate (302). An adhesive tape (240) is disposed over the central longitudinal slot (238, 338) of each of the staple cartridge (32) and anvil plate (302) and configured retain the respective surgical buttress (500) atop the respective tissue contacting surface (220, 320).

Shipping member for loading unit

SHIPPING MEMBER FOR LOADING UNIT A shipping member (100) for selective attachment to a replaceable loading unit (10) is provided. The shipping member (100) includes an annular extension (120) configured for selective engagement with a loading unit (10) and configured to prevent movement of a knife assembly (50) of the loading unit (10). The shipping member (100) further includes first and second legs (160, 170) configured to prevent movement of a staple pusher assembly (30). The shipping member (100) also includes a staple retaining surface (112) configured to retain staples ("S") within a staple cartridge (40) of the loading unit (10). :11 C-4N C'4 C-C,4 ...

Loading unit locking collar with rotational actuated release

LOADING UNIT LOCKING COLLAR WITH ROTATIONAL ACTUATED A loading unit (10) includes a shell assembly (20) and a locking collar (40). The shell assembly (20) has an annular ring (22) that defines a locking slot (26) and a proximal opening (21). The proximal opening (21) configured to receive a distal end portion (110) of the surgical instrument. The locking collar (40) is rotatably disposed about the annular ring (22). The locking collar (40) has a body including a flexible tab (44) that has an inwardly extending lock (50). The locking collar (40) is moveable about the annular ring (22) between a locked and unlocked configuration. In the locked configuration, the lock (50) passes through the locking slot (26) and into the proximal opening (21) of the annular ring (22). In the unlocked configuration, the body of the locking collar (40) is rotated about the annular ring (22) from the locked configuration to move the lock from within the proximal opening (21). 0o Cg ...

Handheld electromechanical surgical system

HANDHELD ELECTROMECHANICAL SURGICAL SYSTEM An outer shell assembly of a surgical device (100), comprising: an outer shell housing (10) including: a distal section (1Oa) having a proximal-facing edge; and a proximal section (1Ob) having a distal-facing edge configured to couple with the proximal-facing edge of the distal section (1 Oa), the distal and proximal sections (1 Oa, 1 Ob) together defining a cavity (1 Oc) configured to selectively encase a power-pack therein; and an insertion guide (50) configured to be coupled to and cover the distal-facing edge of the proximal section (105) such that the insertion guide (50) shields the distal-facing edge of the proximal section (10b) from contact with the power-pack upon insertion of the power-pack into the proximal section (10b) of the outer shell housing (10). cu C=) co C2 -M cu C14 cu C.C> C=3 C=) cli C=> C--> zi- Nl*, ...

Device and method for controlling compression of tissue

DEVICE AND METHOD FOR CONTROLLING COMPRESSION OF A surgical device, comprising: a first clamping member (1005) and a second clamping member (1010); an electric motor (410) configured to drive at least one of the first and second clamping members toward a predetermined tissue gap (1020) between the clamping members. A control unit (400) configured to monitor the electric motor and to control the motor to limit a clamping force exerted on the tissue by the clamping members in response to monitoring of the electric motor.

Surgical stapling instrument

INTRALUMENAL ANASTOMOSIS MEDICAL STAPLING DEVICE

Surgical instruments with electrodes

A surgical stapling assembly is configured to be used to form a tissue seal having an arcuate portion. The surgical stapling assembly comprises an end-effector extending from the distal end of the shaft. The end-effector comprises a first portion and a second portion. The first portion comprises a first face at least partially surrounding the aperture, a staple cavity defined in the first face, a staple removably positioned within the staple cavity, and a first electrode positioned one of on and proximate to the first face. The second portion comprises a second face, an anvil pocket defined in the second face, and a second electrode positioned one of on and proximate to the second face, and a second electrode. The first electrode and the second electrode each comprise an arcuate portion. The first electrode has a different polarity than the second electrode.

Surgical fastening devices comprising rivets

An end-effector assembly is configured to be attached to a surgical instrument. The end-effector assembly comprises a first jaw comprising an electrode, a second jaw comprising a rivet cavity, and a rivet. At least one of the first jaw and the second jaw is movable relative to the other jaw. At least a portion of the rivet is removably positioned within the rivet cavity. The rivet comprises a tissue-engaging portion, an elongate portion extending from the tissue-engaging portion, and a meltable portion. The end-effector assembly comprises a driver configured to move the rivet between a first position in which the rivet is stored at least partially within the rivet cavity and a second position in which the rivet is at least partially deployed from the rivet cavity. The meltable portion of the rivet is positioned against or adjacent to the electrode when the rivet is in the second position.

Expanding parallel jaw device for use with an electromechanical driver device

A cutting and stapling device for use as an attachment to an electromechanical device driver comprises an upper jaw and a lower jaw which separate and close against one another in a continuously parallel alignment. The upper jaw includes a series of staple guides corresponding to one or more staples in a removable staple tray disposed within a lower jaw, whereby a blade and wedge having a threaded bore travel upon a matching threaded shaft in a channel disposed in the lower jaw below the staple tray, such that rotation of the threaded shaft causes movement of the wedge through the channel while a sloped surface of the wedge contacts the staples to push the staples against the staples guides, closing the staples.

Surgical circular stapler with tissue retention arrangements

Surgical instruments and procedures for performing a circular anastomosis of a tubular organ. The surgical instruments may include selectively deployable tissue acquisition members configured to puncture through a portion of the tubular organ and position the portion of the organ adjacent to a fastener face of a staple cartridge supported in the instrument. At least one cutting member may be radially deployed and rotated to sever the positioned portion of organ from a distal portion of the organ. An anvil may be employed to draw another portion of the organ adjacent to the portion of organ positioned adjacent to the fastener face of the staple cartridge. The staples may then be deployed through the adjacent portions of organ and an annular knife may be advanced through the adjacent organ portions to complete the anastomosis.

Circular stapler for hemorrhoid operations

A circular stapler for performing hemorrhoidal operations is disclosed. The circular stapler includes an anvil, a stapler head and a shaft which movably supports the anvil in relation to the stapler head between open and closed positions. The stapler includes at least one displacing member, each of which is arbitrarily and/or independently displaceable along the shaft. Each of the at least one displacing members has a first end configured to engage a pursestring suture and a second end which extends through the body, e.g., the neck of the stapler. The displacing member is arbitrarily displaceable along the shaft. In one embodiment, two independently displaceable displacing members are provided. In another embodiment, the at least one displacing member is at least partially embedded in the shaft.

Device and method for delivering shape-memory staples

Some embodiments relate to a device for delivering shape-memory staples. The device comprises a grippable portion comprising a first actuator; and a delivery portion coupled to the grippable portion. The delivery portion comprises retention walls for retaining the staples within the delivery portion in an elastically deformed configuration and release apertures for releasing the staples to adopt a deployed configuration based on their shape memory. The delivery portion is configured to cause one end of each staple to protrude from the delivery portion in response to actuation of the first actuator. In some embodiments a striking mechanism is coupled to the grippable portion and configured to communicate a striking blow to the delivery portion.

Fastener system comprising a retention matrix

A surgical fastener system can comprise a plurality of fasteners which can be connected to one another by a retention matrix which is assembled to the fasteners in order to capture tissue therebetween. In various embodiments, each fastener can comprise a base and the distance in which the retention matrix is seated relative to the fastener bases can be selectively determined by a surgeon in order to apply a desired pressure to the tissue. In certain embodiments, each fastener can further comprise a fastener leg and the retention matrix can comprise a first layer configured to engage the fastener legs. The retention matrix can further comprise a second layer mounted to the first layer which can comprise one or more encapsulations containing a medicine therein. The encapsulations can be aligned with retention apertures in the retention matrix such that they can be punctured by the fastener legs.

Compressible fastener cartridge

A fastener cartridge can comprise a compressible, collapsible, and/or crushable cartridge body and fasteners embedded within the cartridge body which can be utilized to fasten tissue. In use, the fastener cartridge can be positioned in a first jaw of a surgical fastening device, wherein the first jaw can be positioned opposite a second jaw, or anvil. The anvil can be engaged with the fastener cartridge to compress, collapse, and/or crush the cartridge body and deform, or otherwise deploy, the fasteners contained therein. As the fasteners are deformed or deployed, the fasteners can capture at least a portion of the cartridge body therein along with at least a portion of the tissue being fastened. In various embodiments, the cartridge body can comprise a plurality of layers wherein at least one of the layers can be detached from the other layers and removed from the surgical site.

Tissue thickness compensator comprising portions having different properties

A fastener cartridge can comprise a support portion, a tissue thickness compensator positioned relative to the support portion, and a plurality of fasteners positioned within the support portion and/or the tissue thickness compensator which can be utilized to fasten tissue. In use, the fastener cartridge can be positioned in a first jaw of a surgical fastening device, wherein a second jaw, or anvil, can be positioned opposite the first jaw. To deploy the fasteners, a staple-deploying member is advanced through the fastener cartridge to move the fasteners toward the anvil. As the fasteners are deployed, the fasteners can capture at least a portion of the tissue thickness compensator therein along with at least a portion of the tissue being fastened.

Compressible staple cartridge assembly

A fastener cartridge can comprise a support portion, a tissue thickness compensator positioned relative to the support portion, and a plurality of fasteners positioned within the support portion and/or the tissue thickness compensator which can be utilized to fasten tissue. In use, the fastener cartridge can be positioned in a first jaw of a surgical fastening device, wherein a second jaw, or anvil, can be positioned opposite the first jaw. To deploy the fasteners, a staple-deploying member is advanced through the fastener cartridge to move the fasteners toward the anvil. As the fasteners are deployed, the fasteners can capture at least a portion of the tissue thickness compensator therein along with at least a portion of the tissue being fastened.

Implantable fastener cartridge having a non-uniform arrangement

A fastener cartridge can comprise a compressible, collapsible, and/or crushable cartridge body and fasteners embedded within the cartridge body which can be utilized to fasten tissue. In use, the fastener cartridge can be positioned in a first jaw of a surgical fastening device, wherein the first jaw can be positioned opposite a second jaw, or anvil. The anvil can be engaged with the fastener cartridge to compress, collapse, and/or crush the cartridge body and deform, or otherwise deploy, the fasteners contained therein. As the fasteners are deformed or deployed, the fasteners can capture at least a portion of the cartridge body therein along with at least a portion of the tissue being fastened. In various embodiments, the cartridge body can comprise a thickness which is not uniform thereacross. In at least one embodiment, the fasteners can comprise different unformed heights and/or different formed heights.

Surgical stapler with floating anvil

A surgical instrument can include an anvil and, in addition, a staple cartridge support configured to support a staple cartridge. In various embodiments, the jaw can be moved toward the staple cartridge to deform staples contained within the staple cartridge. The anvil can be configured to be translated and/or rotated as the anvil is moved toward the staple cartridge. In certain embodiments, the anvil can be configured to float and adjust such that the anvil is moved downwardly in a level manner.

Staple cartridge comprising a releasable portion

A fastener cartridge can comprise a support portion, a tissue thickness compensator positioned relative to the support portion, and a plurality of fasteners positioned within the support portion and/or the tissue thickness compensator which can be utilized to fasten tissue. In use, the fastener cartridge can be positioned in a first jaw of a surgical fastening device, wherein a second jaw, or anvil, can be positioned opposite the first jaw. To deploy the fasteners, a staple-deploying member is advanced through the fastener cartridge to move the fasteners toward the anvil. As the fasteners are deployed, the fasteners can capture at least a portion of the tissue thickness compensator therein along with at least a portion of the tissue being fastened.

Surgical tilt anvil assembly

A surgical tilt anvil assembly including a rod and a head assembly including an anvil plate having staple deforming pockets. The head assembly is pivotally secured to the rod and pivotal in relation to the rod between a first tilted position, a non-tilted position and a second different tilted position. The head assembly passes from the first tilted position, through the non-tilted position to the second tilted position.

Adhesive Suture Structure and Methods of Using the Same

According to an aspect of the present disclosure, a surgical suture needle assembly is provided including an elongate tube defining a lumen through at least a portion of a length thereof; and a wound treatment material contained within the lumen of the suture structure. The present disclosure further provides for methods of using the surgical suture needle assembly in anastomotic procedures and the like.

Surgical Fastener Applying Apparatus

A surgical stapler is provided. The stapler includes a tubular body portion. A cartridge assembly is disposed at a distal end of the body portion for expelling an annular array of staples. Each of the staples of the annular array of staples has a generally bent backspan. An anvil member disposed at the distal end of the tubular body portion is positioned opposite the cartridge assembly to clinch the staples in tissue upon expulsion of the staples from the cartridge assembly. The anvil member has a corresponding annular array of staple forming buckets. Each of the buckets is configured to accommodate the generally bent configuration of the staples to facilitate formation thereof.

Robotically-controlled surgical instrument with force-feedback capabilities

A surgical instrument. Various embodiments of the surgical instrument include an end effector that has a moveable cutting implement. A main drive shaft assembly operably interfaces with the end effector for transmitting an actuation motion to the movable cutting implement therein. A gear drive train is connected to the main drive shaft assembly. The gear drive train is actuated by a motor that is configured to receive control signals from a robotic system. Various embodiments include a sensor arrangement that operably interfaces the end effector to communicate forces experienced by the end effector to the robotic system.

Surgical instrument buttress attachment

A surgical stapler instrument has surgical stapler jaws, at least one staple line reinforcement material, and a fastener including a hook and a loop. The hook can be disposed on one of the surgical stapler jaws and the loop can be disposed on the staple line reinforcement material. Alternatively, the hook can be disposed on the staple line reinforcement material and the look on one of the surgical stapler jaws.

Tissue thickness compensator comprising structure to produce a resilient load

A fastener cartridge assembly for an end effector of a surgical instrument can comprise a cartridge body, a deformable tube, and a fastener moveable between an initial position and a fired position. The deformable tube can be longitudinally positioned along a length of the cartridge body. When the fastener is moved to the fired position, the fastener can compress a portion of the deformable tube. The deformable tube can comprise a resilient material such that deformation of the deformable tube generates a restoring force. The deformable tube can comprise a lattice of strands woven together to form a tube wall. Further, the deformable tube can be bioabsorbable and can hold a therapeutic agent. The fastener cartridge assembly can comprise multiple, substantially parallel deformable tubes positioned side-by-side and/or within each other.

Circular stapler with automatic locking mechanism

A circular stapling instrument includes a casing, an anvil assembly, a staple driver, and a locking mechanism. The anvil assembly is configured to move back and forth between an open position away from the casing and a closed position adjacent the casing. The staple driver is configured to move within the casing from a pre-fired position to a fired position. The locking mechanism is configured to, whenever the anvil assembly is in the open position, automatically lock the staple driver in the pre-fired position preventing the staple driver from being moved to the fired position. The locking mechanism is also configured to, whenever the anvil assembly is in the closed position, automatically unlock the staple driver from the pre-fired position to allow the staple driver to be moved to the fired position.

Variable compression surgical fastener cartridge

A surgical fastener applying apparatus having a first jaw and a second jaw. The first jaw includes a cartridge body having plurality of surgical fasteners disposed therein. The plurality of surgical fasteners include a plurality of first surgical fasteners having a first backspan with a first configuration, and a plurality of second surgical fasteners having a second backspan with a second, different configuration such that the plurality of first surgical fasteners apply a first compressive force to tissue upon formation and the plurality of second surgical fasteners apply a second, different compressive force to tissue upon formation.

Annular Support Structures

Reinforcing lumen rings are configured and adapted for use in conjunction with a circular endoscopic stapling instrument having a staple cartridge assembly and an anvil assembly. The reinforcing lumen rings maintain anastomotic lumen, e.g. as formed by the circular endoscopic stapling apparatus, in an open condition. The reinforcing lumen rings can include an annular ring having an outer terminal edge and an inner terminal edge, the outer terminal edge having a diameter which is substantially equal to an outer diameter of the staple cartridge assembly and the inner terminal edge having a diameter which is substantially equal to an inner diameter of the staple cartridge assembly.

Surgical instrument with double cartridge and anvil assemblies

An end effector for use with a surgical instrument having a first cartridge assembly configured to deploy a first set of fasteners and a second cartridge assembly disposed distally of the first cartridge assembly. The second cartridge assembly is configured to move between an open position and an approximated position relative to clamp tissue. A central rod extends between the first cartridge assembly and the second cartridge assembly.

Surgical Stapling System

A system is provided for joining two tubular structures by a surgical stapling procedure. The system includes a series of sizers, a specifically designed graft, a loading unit, a wand, a tourniquet, and a stapling instrument. As a result, a plurality of staples may be simultaneously deployed quickly and accurately in a circumferential pattern so as to join together two tubular structures. The system may be used in either an open surgical procedure or laparascopically.

EEA Tilt Top Anvil With Ratchet/Locking Mechanism

A tilt anvil assembly is disclosed which includes a center rod and a head assembly pivotally mounted to the center rod. The head assembly includes a housing, a post and an anvil plate. The head assembly is pivotally secured to the center rod and pivotal in relation to the center rod in discrete steps between a non-tilted position and a fully tilted position via a plurality of partially tilted positions. The head assembly is configured to maintain a partially tilted position.

SURGICAL STAPLING HEAD ASSEMBLY WITH FIRING LOCKOUT FOR A SURGICAL STAPLER

In various embodiments, a surgical stapling head is provided that may comprise a staple cartridge for supporting one or more staples, a core movable relative to the staple cartridge, at least one staple driver extending from the core, and a casing configured to at least partially hold the staple cartridge and movably receive the core and the staple driver(s). The casing may further comprise at least one retention member that is configured to move from a first position to a second position when sufficient external force is applied to the retention member, such as that provided by a shaft of a surgical stapler during insertion of the stapling head assembly into the shaft. When the retention member(s) are at the second position, the staple driver(s) may be prevented from driving staples from the staple cartridge, thereby providing a firing lockout feature to the stapling head assembly during insertion into at least a portion of a surgical stapler. 1. A surgical instrument , comprising:a shaft portion; and an actuation member movably supported within said end effector, said actuation member movable from an unactuated position to an actuated position; and', 'a retention member releasably engageable by said shaft portion, wherein said retention member is movable from a first position to a second position by said shaft portion, wherein said retention member, at said second position, is configured to prevent said actuation member from moving from said unactuated position to said actuated position., 'an end effector releasably couplable to said shaft portion, said end effector, comprising2. The surgical instrument of claim 1 , wherein said shaft portion comprises a recess for receiving said retention member.3. The surgical instrument of claim 2 , wherein said retention member is configured to release said actuation member when said retention member is received by said recess.4. The surgical instrument of claim 1 , wherein said retention member is resiliently deflectable.5. ...

Surgical instrument having force feedback capabilities.

A surgical instrument. The surgical instrument has a force delivery system which communicates a changing force to a user of the surgical instrument when a limit of a surgical function is reached. A sensor senses position of a moving element to communicate a signal to the force delivery system. In various embodiments, the system generates a vibratory force to signal the user.

SEAL ELEMENT FOR ANASTOMOSIS

A seal element for sealing between tissue lumens includes a first material for allowing tissue ingrowth and a second sealant material. 1. An assembly for disposing a seal element between tissue lumens comprising:a circular surgical stapling device comprising an anvil assembly, a tubular body portion, and a circular knife wherein the anvil assembly comprises an anvil member and a first shaft and the tubular body portion comprises a plurality of surgical staples in a circular configuration and a second shaft disposed inwardly of the surgical staples, the first shaft being attachable to the second shaft; anda seal element disposable between the tissue lumens, the seal element being a disc comprising an inner first material, an outer second material and a center aperture, a diameter of the center aperture being larger than the diameter of the circular knife.2. The assembly of wherein the inner first material is thinner than the outer second material.3. The assembly of wherein the inner first material is about 0.010″ to about 0.020″ thick.4. The assembly of wherein the inner first material comprises pores.5. The assembly of wherein the pores range from about 50 μm to about 200 μm.6. The assembly of wherein the inner first material is a foam.7. The assembly of wherein the inner first material is a mesh.8. The assembly of wherein the inner first material is a perforated sheet.9. The assembly of wherein the outer second material is compressible.10. The assembly of wherein the outer second material is expandable in response to contact with fluids.11. The assembly of wherein at least one of the inner first material and the outer second material further comprises at least one medically useful substance.12. The assembly of wherein the seal element is attachable to the first shaft or the second shaft by means of a hub.13. The assembly of wherein the diameter of the center aperture is about the size of the first shaft.14. The assembly of wherein the outer second material is ...

Surgical Stapling Apparatus Including Buttress Attachment Via Tabs

An apparatus for joining two hollow organ sections with an annular array of surgical staples includes a staple cartridge component, an anvil component, a buttress component and a fastening member. The staple cartridge component includes a plurality of surgical staples arranged in an annular array. The anvil component is movable relative to the staple cartridge component between spaced apart and approximated positions to adjustably clamp the organ sections between the staple cartridge and anvil components. The buttress components are configured and dimensioned to be positioned on a distal surface of the staple cartridge component and the proximal surface of the anvil component. In particular, the buttress component includes a buttress member and a plurality of circumferentially arranged tabs extending proximally from the buttress member. The fastening member is configured and dimensioned to engage the plurality of circumferentially arranged tabs to securely position the buttress component on the staple cartridge component.

Tissue stapler anvil feature to prevent premature jaw opening

A surgical instrument includes a handle assembly having a trigger operable to fire a staple driver to staple tissue. The instrument includes a pointed rod to which an anvil may be coupled. An anvil detection feature is included to determine when the anvil is coupled to the rod. In some versions, the anvil detection feature comprises a translatable rod that inhibits a lockout feature from disengaging. In other versions, an anvil sensing tube is disposed about the pointed rod and interferes with actuation of the trigger in a first position. A recess in the tube permits trigger to actuate when the anvil sensing tube is in the second position. Alternatively, a resilient tab is coupled to the pointed rod and resists actuation of the staple driver. A trigger lockout assembly may include a spring-loaded button that “pops” out when a push rod is actuated, thereby freeing a pivotable lockout feature.

End effector for use with a surgical fastening instrument

A surgical staple including a crown and a deformable member extending from the crown, the deformable member having a notch configured to cause the deformable member to bend at the notch when the staple is deformed from a first shape into a second shape. The crown of the surgical staple, in various embodiments, further includes a forming surface, or anvil, which is configured to deform the deformable member and/or guide a distal end of the deformable member when the distal end contacts the crown.

Actuator for releasing a tissue thickness compensator from a fastener cartridge

A fastener cartridge assembly for use with a surgical end effector. The fastener cartridge assembly can comprise a cartridge body having fastener cavities, fasteners removably positioned in the fastener cavities, a layer of material releasably secured relative to the cartridge body, a connector configured to secure the layer of material to the cartridge body at a location distal to at least one fastener cavity, and an actuator. The layer of material can be a tissue thickness compensator. When actuated, the actuator can overcome the connector, and can overcome the connector prior to the removal of the fasteners from the fastener cavities. The actuator can be actuated at a location proximal to at least one fastener cavity, and can extend distally past at least one fastener cavity toward the connector.

Surgical instrument and method for performing a resection

An end effector for use with a surgical instrument comprising an anvil shaft, a first anvil assembly disposed at a distal portion of the anvil shaft and a second anvil assembly mountable on the anvil shaft proximally of the first anvil assembly. Also, a method for performing a surgical procedure is provided including the steps of providing a surgical instrument including a first cartridge assembly and a first anvil assembly having an anvil shaft, approximating the first anvil assembly and first cartridge assembly and ejecting staples from the first cartridge assembly. The method further includes removing the first cartridge assembly from the tubular organ, and inserting a second anvil assembly into the tubular organ to engage the anvil shaft of the first anvil assembly and ejecting staples from a second cartridge assembly towards the second anvil assembly.

Support Structures and Methods of Using the Same

According to an aspect of the present disclosure, an apparatus for forming an anastomosis between adjacent intestinal sections of tissue is provided. The apparatus includes an anastomosis device having an anvil and a tubular body portion, wherein the anvil is selectively attachable to the tubular body portion by a shaft; and a support structure for deposition between the intestinal sections of tissue. The support structure includes a body defining an aperture therein for receiving the shaft. The body has an outer terminal edge. The support structure includes at least one layer of expandable material disposed at the outer terminal edge of the body. 1. An apparatus for forming an anastomosis between adjacent intestinal sections of tissue , comprising:a) an anastomosis device having an anvil and a tubular body portion, the anvil being selectively attachable to the tubular body portion by a shaft; andb) a support structure for deposition between the intestinal sections of tissue, the support structure including a body defining an aperture therein for receiving the shaft, the body having an outer terminal edge, the support structure including at least one layer of expandable material disposed at the outer terminal edge of the body.2. The apparatus according to claim 1 , wherein the at least one layer of expandable material comprises a first and a second membrane extending radially outward from the outer terminal edge of the body portion.3. The apparatus according to claim 1 , wherein the aperture is defined by an inner terminal edge of the body claim 1 , the inner terminal edge being disposed radially inward of staple receiving slots of a staple cartridge assembly disposed in the tubular body portion.4. The apparatus according to claim 2 , wherein each of the first and second membranes is made from a polymeric film.5. The apparatus according to claim 2 , wherein each of the first and second membranes is made from polyethylene.6. The apparatus according to claim 2 , ...

Tissue thickness compensator comprising a plurality of medicaments

In various embodiments, a compensator can comprise a compensator body comprising a plurality of first packets and a plurality of second packets wherein, in at least one embodiment, each second packet is positioned intermediate two or more first packets. The compensator can further comprise a first medicament positioned within each first packet and a second medicament positioned within each second packet, wherein the first medicament is different than the second medicament.

Medical Anastomosis Apparatus

A medical anastomosis apparatus is provided. The medical anastomosis apparatus includes a cylindrical body which has a hollow portion and extends in a longitudinal direction, a pressing rod which is provided inside of the hollow portion of the body to translate along the hollow portion, a knob which is coupled to the pressing rod to provide a driving force to translate the pressing rod, a guide member which is inserted into one end of the body and simultaneously coupled to expose a portion of the body and has a pressing unit formed therein to move radially upon translation of the pressing rod, and a staple cartridge which is inserted around an outer circumferential surface of the guide member and then coupled to the body and has built-in staple clips that protrude outward upon movement of the pressing unit. 1. A medical anastomosis apparatus comprising:a cylindrical body which has a hollow portion and extends in a longitudinal direction;a pressing rod which is provided in the inside of the hollow portion of the body to translate along the hollow portion;a knob which is coupled to the pressing rod to provide a driving force to translate the pressing rod;a guide member which is inserted into one end of the body and simultaneously coupled to expose a portion of the body and has a pressing unit formed therein to move radially upon translation of the pressing rod; anda staple cartridge which is inserted around an outer circumferential surface of the guide member and then coupled to the body and has built-in staple clips that protrude outward upon movement of the pressing unit.2. The medical anastomosis apparatus of claim 1 , wherein the pressing unit provided in the guide member is wedge shaped.3. The medical anastomosis apparatus of claim 1 , wherein a plurality of the pressing unit provided in the guide member is formed radially around the internal center of the guide member.4. The medical anastomosis apparatus of claim 3 , wherein the pressing unit is provided in a ...

Surgical Stapling Device for Performing Circular Anastomoses

This application is directed to a surgical stapling device for performing circular anastomoses. The surgical stapling device includes a handle portion, an elongated body portion and a head portion including an anvil assembly and a shell assembly. A tactile indication mechanism is also provided for notifying a surgeon that the device has been fired and for notifying a surgeon that the anvil head has been unapproximated a distance sufficient to permit the anvil head to tilt.

CIRCULAR STAPLER WITH CONTROLLED TISSUE COMPRESSION

There are provided torque limiting mechanisms for use in tissue clamping surgical instruments. The torque limiting mechanisms generally include a driven member, engageable with an approximating mechanism of the surgical instruments, and having a driven surface and a driving member having a driving surface engageable with the driven surface of the driven member. The driving member is rotatable relative to the driven member such that the driving surface of the driving member slips relative to or dissengages from the driven surface of the driven member at a predetermined engagement pressure. 1. A torque limiting mechanism for use in a surgical instrument that compresses tissue comprising:a driven member engageable with an approximating mechanism of a surgical instrument, the driven member having a driven surface;a driving member having a driving surface engageable with the driven surface of the driven member and connected to a clamping actuator of the surgical instrument, wherein the driving surface of the driving member slips relative to the driven surface of the driven member at a predetermined engagement pressure; anda torque control having a member that adjusts the pressure applied by the driving member to the driven member.2. The torque limiting mechanism as recited in claim 1 , wherein the driving member is rotatable relative to the driven member.3. The torque limiting mechanism as recited in claim 2 , wherein the driving surface frictionally engages the driven surface.4. The torque limiting mechanism as recited in claim 2 , wherein the driving surface and the driven surface have interengaging structure.5. The torque limiting mechanism as recited in claim 4 , wherein the driving surface and the driven surface have interengaging teeth.6. The torque limiting mechanism as recited in claim 4 , wherein the interengaging structure is a detent mechanism.7. The torque limiting mechanism as recited in claim 6 , further comprising at least one movable connector between the ...

Circular Stapler with Controlled Tissue Compression

There are provided torque limiting mechanisms for use in tissue clamping surgical instruments. The torque limiting mechanisms generally include a driven member, engageable with an approximating mechanism of the surgical instruments, and having a driven surface and a driving member having a driving surface engageable with the driven surface of the driven member. The driving member is rotatable relative to the driven member such that the driving surface of the driving member slips relative to or dissengages from the driven surface of the driven member at a predetermined engagement pressure. 1. A surgical instrument comprising:a head assembly including first and second clamping members, the first clamping member movable relative to the second clamping member;an approximating mechanism including a drive screw and a rotatable sleeve, the drive screw operatively coupled to the first clamping member such that rotation of the rotatable sleeve causes translation of the drive screw; anda torque limiting mechanism including a driving member having a driving surface and a driven member having a driven surface configured for concomitant rotation with the rotatable sleeve, the driving and driven surfaces engaging each other, whereby rotation of the driving surface causes rotation of the driven surface,wherein the driving surface is configured to slip relative to the driven surface at a predetermined torque value, wherein an amount of pressure applied to the driven surface by the driving surface is selectively adjustable.2. The surgical instrument according to claim 1 , wherein the torque limiting mechanism further includes a biasing member to bias the driving surface toward the driven surface.3. The surgical instrument according to claim 2 , wherein the torque limiting mechanism further includes a finger configured to selectively adjust the amount of pressure applied by the biasing member.4. The surgical instrument according to claim 3 , wherein the torque limiting mechanism ...

Tilting anvil for annular surgical stapler

A surgical stapling instrument is disclosed, the instrument having a handle assembly, a body portion having a staple cartridge assembly, and an anvil assembly. The anvil assembly includes an anvil head, an anvil member, an anvil shaft, and a biasing member. The anvil shaft defines a longitudinal axis and the anvil member is pivotally secured to the anvil head. The biasing member is supported on the anvil assembly to urge the anvil member from a first position to a second position defining an angle with respect to the longitudinal axis.

ANNULAR ADHESIVE STRUCTURE

An apparatus for forming an anastomosis between adjacent intestinal sections of tissue is provided. The apparatus includes a circular surgical stapler having an anvil assembly with an anvil shaft and an anvil, the circular surgical stapler further having a tubular body portion with an annular knife and a body portion shaft selectively attachable to the anvil shaft; and a seal structure for deposition between the intestinal sections of tissue including a hub configured to engage attachment structure on at least one of the anvil shaft and the body portion shaft. The attachment structure is positioned so that the seal structure is located between the intestinal sections of tissue when the circular surgical stapler is disposed within the intestinal sections of tissue. 1. (canceled)2. A support structure for deposition between intestinal sections , comprising at least one disc having a generally centrally located aperture , the support structure comprising a material selected from the group consisting of at least one of an adhesive , a sealant , a hemostat , and a medicament , and including at least one portion of a hook and a loop type fastener.3. The structure of claim 2 , wherein the support structure is impregnated with the material.4. The structure of claim 2 , wherein the support structure comprises an inflatable annular structure.5. The structure of claim 2 , further comprising a plurality of spokes extending radially inwardly from the disc.6. The structure of claim 2 , wherein an interior space of the support structure contains the material.7. The structure of claim 2 , wherein the support structure comprises a first layer and a second layer.8. The assembly of claim 7 , wherein the first layer comprises a first part of a two-part adhesive and the second layer comprises a second part of the two-part adhesive.9. The structure of claim 7 , wherein the first layer has a plurality of loops and the second layer has a plurality of hooks.10. The structure of claim 7 , ...

Fastener cartridge assembly comprising a driver row arrangement

A surgical stapling device that comprises an end effector. According to various embodiments, the end effector comprises a circular anvil having a staple forming surface and a plurality of staples facing the staple forming surface of the anvil. The end effector also comprises a staple driver assembly comprising a plurality of staple drivers. Each staple driver supports one of the plurality of staples and is configured such that, when the staple driver assembly is actuated, each staple driver drives the staple into the staple forming surface of the anvil. A first quantity of the plurality of staple drivers has a first height and a second quantity of the plurality of staple drivers has a second height, wherein the first height is less than the second height.

T-SLOT TILT ANVIL FOR CIRCULAR STAPLING INSTRUMENT

A surgical stapling device and method for joining tissue portions are provided including a handle assembly, an elongate body extending from the handle assembly, a cartridge assembly supported on a distal end of the elongate body, and an anvil assembly at a distal end of the surgical stapling device. The anvil assembly includes a shaft for removably coupling the anvil assembly to the cartridge assembly and a head pivotally mounted to a distal end of the shaft. A sleeve member is slidably disposed about the shaft of the anvil assembly and is transitionable between a first position, where the sleeve member engages the head of the anvil assembly to secure the head in an un-tilted condition, and a second position, where the sleeve member is disengaged from the head of the anvil assembly to allow the head to tilt. 1. A surgical stapling device for joining tissue portions , comprising:a handle assembly;an elongate body extending from the handle assembly;a cartridge assembly supported on a distal end of the elongate body, the cartridge assembly including a staple cartridge containing a plurality of surgical staples in an annular array;an anvil assembly at a distal end of the surgical stapling device, the anvil assembly having a shaft for removably coupling the anvil assembly to the cartridge assembly and a head pivotally mounted to a distal end of the shaft, the anvil assembly translatable relative to the cartridge assembly between a first position, where the anvil assembly is spaced from the cartridge assembly, and a second position, where the anvil assembly is approximated relative to the cartridge assembly for clamping tissue disposed therebetween, the head of the anvil assembly transitionable between a first condition, where a tissue contacting surface of the head is substantially perpendicular to the shaft, and a second condition, where the tissue contacting surface of the head is tilted relative to the shaft; andan anvil sleeve including an elongate portion slidably ...

Surgical stapling instrument

A surgical stapler can comprise an anvil comprising a staple pocket formed in a tissue contacting surface. The staple pocket can comprise a midline or centerline, a first forming cup, and a second forming cup. The first forming cup can comprise a first interior sidewall comprising a first vertical portion which is substantially perpendicular to the tissue contacting surface. The second forming cup can comprise a second interior sidewall comprising a second vertical portion which is substantially perpendicular to the tissue contacting surface. The first vertical portion and the second vertical portion can extend through the centerline, wherein the first interior sidewall and the second interior sidewall can comprise a trap for deforming a first staple leg of a staple to a first side of the centerline and for deforming a second staple leg of the staple to a second side of the centerline.

Circular stapler with the capability to resect and anastomose variable volumes of tissue

According to the disclosure, a variable tissue volume circular stapler instrument ( 9 ) may be adapted from those currently used for the removal and treatment of haemorrhoids. An exemplary instrument comprises a handle, a shaft extending from the handle, and a stapling head assembly extending from the shaft. The stapling has a hollow casing that allows a certain amount of tissue to be drawn into the housing via the use of draw string sutures placed in the mucosal layers of the anal wall. The amount of tissue drawn into the housing with current instrumentation may be controlled by providing a variable tissue-volume control mechanism ( 16 ) mounted between the casing, the staple pusher mechanism ( 15 ) and the central shaft ( 19 ) and having fenestrations ( 18 ) which correspond to external stapler housing fenestrations ( 17 ).

SURGICAL TILT ANVIL ASSEMBLY

An anvil and anvil delivery system is provided which includes a head assembly and a center rod defining a longitudinal axis. The head assembly defines a transverse axis and is pivotally secured to the rod and movable from an operative position wherein the transverse axis is substantially perpendicular to the longitudinal axis and a tilted position wherein the transverse axis defines an acute angle with respect to the longitudinal axis. A flexible tube is secured to the center rod which includes gradations along the length of the tube. The gradations are positioned to provide an indication of a length of the tube remaining in a patient during removal of the tube from the patient. An adapter is secured to one end of the flexible tube and to the center rod. The adapter is configured to secure the anvil assembly to the flexible tube. 112-. (canceled)13. An anvil and anvil delivery system comprising:an anvil assembly including a head assembly and a center rod defining a longitudinal axis, the head assembly defining a transverse axis and being pivotally secured to the center rod and movable from an operative position to a first tilted position;an adapter having a first end secured to the center rod and a second end;a flexible tube having an open end secured to the second end of the adapter; anda first suture secured to the head assembly, the first suture being positioned in tension to maintain the head assembly in the first tilted position, wherein the first suture is positioned in frictional contact between an inner surface of the flexible tube and the second end of the adapter to retain the first suture in tension.14. The anvil and anvil delivery system according to claim 13 , wherein the head assembly further includes a post and a backup member claim 13 , the backup member being movable about the post from a first position in which the backup member is positioned to prevent pivotal movement of the head assembly from the operative position to a second tilted position ...

Circumferential Full Thickness Resectioning Device

An apparatus for performing endoluminal anastomosis of an organ comprises an operative head including an endoscope receiving lumen for slidably receiving a flexible endoscope therein, the operative head including an annular tissue receiving space extending around a circumference of a distal end thereof and a stapling mechanism for firing staples around an entire circumference of the tissue receiving space and a tissue gripping mechanism for drawing into the tissue receiving space a portion of tissue extending around an entire circumference of the organ.

Surgical Stapling Instruments Including A Cartridge Having Multiple Staple Sizes

A surgical stapling apparatus includes a staple cartridge and an anvil member. The staple cartridge includes a plurality of surgical fasteners disposed in rows of retention slots. The staple cartridge may have an annular or linear configuration of retention slots. The tissue contacting surface of the staple cartridge may be tapered or stepped. The anvil member has a tissue contacting surface that includes a number of pockets arranged for substantially aligning with the retention slots. In addition, the tissue contacting surface of the anvil member may complement the tissue contacting surface of the staple cartridge.

SURGICAL STAPLING INSTRUMENT

A surgical stapling attachment configured to clamp, staple, and cut tissue is disclosed. The surgical stapling attachment comprises an attachment portion, a shaft assembly, an articulation joint, and an end effector assembly. The end effector assembly comprises a firing system configured to cut tissue only after the tissue has been stapled. 1. A surgical stapling instrument , comprising:a shaft;an articulation joint; and a first jaw;', 'a second jaw, wherein at least one of said first jaw and said second jaw is movable relative to the other of said first jaw and said second jaw;', 'a staple cartridge comprising a plurality of staples, wherein each said staple comprises an unfired configuration and a fired configuration;', 'an anvil configured to deform said staples into said fired configuration when said staples are deployed from said staple cartridge; and', a sled movable within said staple cartridge and configured to deploy said staples from said staple cartridge as said sled moves from a proximal position of said staple cartridge to a distal position of said staple cartridge, wherein deployment of said staples occurs during a staple firing stroke, wherein said staple firing stroke is complete when each said staple is in said fired configuration;', 'a cutting member configured to cut tissue clamped with said instrument during a cutting firing stroke, wherein said cutting firing stroke occurs only after said staple firing stroke is complete., 'a firing system, comprising], 'an end effector assembly articulatable relative to said shaft by way of said articulation joint, said end effector assembly comprising2. The surgical stapling instrument of claim 1 , wherein both said first jaw and said second jaw are movable relative to each other.3. The surgical stapling instrument of claim 1 , wherein said firing system further comprises a mechanism configured to automatically actuate said cutting member between a cutting position and a noncutting position.4. The surgical ...

Apparatus and method for endoscopic colectomy

Apparatus and methods for endoscopic colectomy are described herein. A colectomy device having a first and a second tissue approximation device is mounted on a colonoscope separated from one another. During deployment of the colectomy device, a diseased portion of the colon is positioned in between the tissue approximation devices. The tissue approximation devices are radially expanded such that they contact and grasp the colon wall at two sites adjacent to the diseased portion of the colon. The diseased portion is separated from the omentum and is transected using a laparoscope or is drawn into the colonoscope for later removal. The tissue approximation devices are then urged towards one another over the colonoscope to approximate the two free edges of the colon into contact together where they are fastened to one another using the tissue approximation device as a surgical stapler to create an end-to-end anastomosis.

SURGICAL BOWEL RETRACTOR DEVICES

Bowel retractor devices. In various forms, the bowel retractor devices are configurable from a collapsed position wherein the retractor may be inserted through a trocar cannula or other opening in a patient's body to a second expanded position wherein at least a portion of the patient's bowel may be advantageously supported in a desired position. 1. A bowel retractor device comprising an elastic body that is configurable from a first collapsed position wherein said elastic body is configured to be fully passed through an opening in a patient's body and a second expanded position wherein a portion of the patient's bowel may be pulled through a central portion of said elastic body in a desired orientation.2. The bowel retractor device of claim 1 , wherein said central portion comprises an elastic flexible film having a first amount of elasticity and at least one opening therethrough configured to permit a portion of the bowel to pass therethrough and be retained therein and wherein said flexible film is coupled to a flexible outer ring having a second amount of elasticity that is less than said first amount of elasticity.3. The bowel retractor device of claim 2 , wherein when said flexible film is in said first collapsed position claim 2 , said flexible film is in a substantially twisted configuration and when said flexible film is in said second open position claim 2 , said flexible film is substantially planar.4. The bowel retractor device of claim 2 , wherein said at least one opening comprises at least one expandable opening.5. The bowel retractor device of claim 4 , wherein said at least one expandable opening comprises:an elongated slot having two ends; andat least one additional opening adjacent to each end of said elongated slot and spaced therefrom such that a portion of said flexible film between each said end and each said adjacent additional opening is rupturable.6. The bowel retractor device of claim 4 , wherein said at least one expandable opening ...

TROCAR COUPLING ASSEMBLIES FOR A SURGICAL STAPLER

A trocar coupling assembly includes a housing disposable in a tubular shaft of a surgical stapler. The housing has opposed openings defining a passage through the housing that is capable of receiving a trocar assembly therein. A release button is accessible through the tubular shaft for transitioning the trocar coupling assembly between a locked configuration and an unlocked configuration. 1. A trocar coupling assembly for a surgical stapler comprising:a housing having opposed openings defining a passage therethrough, the passage configured to receive a sleeve of a trocar assembly therein;a release button movably coupled to the housing, the release button movable between a relaxed position and a compressed position;a spring disposed between the housing and the release button, the spring biasing the release button towards the extended position;a retention pin disposed in a bore of the housing and slidable between extended and retracted positions; anda clip operatively coupling the release button and the retention pin, the clip translatable between first and second positions, the first position biasing the retention pin towards the extended position and the second position moving the retention pin to the retracted position.2. The trocar coupling assembly of claim 1 , wherein the compressed position of the release button and the retracted position of the retention pin define an unlocked configuration of the trocar coupling assembly.3. The trocar coupling assembly of claim 1 , wherein the relaxed position of the release button and the extended position of the retention pin define a locked configuration of the trocar coupling assembly.4. The trocar coupling assembly of claim 2 , wherein a sleeve of a trocar assembly is insertable into the passage of the housing with the trocar coupling assembly in the unlocked configuration.5. The trocar coupling assembly of claim 3 , wherein a distal portion of the retention pin is engageable with a slot in an outer surface of a sleeve ...

CIRCULAR STAPLING INSTRUMENTS

A surgical system includes an adapter assembly and a tip protector. The adapter assembly includes a tubular housing, and a trocar assembly selectively receivable in the tubular housing. The tip protector includes a housing defining a channel therethrough configured for receipt of the trocar member, a first locking member movably coupled to the housing and configured to selectively engage the trocar member to lock the tip protector to the trocar member, and a second locking member movably coupled to the housing and configured to selectively engage a distal end portion of the tubular housing to lock the tip protector to the tubular housing. 1. An adapter assembly of a circular stapler , the adapter assembly comprising:a tubular housing; a trocar housing defining a first opening; and', 'a trocar member axially movable within the trocar housing and configured to support an anvil assembly;, 'a trocar assembly selectively receivable in the tubular housing and includinga first retention pin supported in the tubular housing; anda camming member associated with the first retention pin, wherein the camming member is configured to move the first retention pin relative to the trocar housing between a first position, in which the first retention pin is received within the first opening in the trocar housing to lock the trocar assembly with the tubular housing, and a second position, in which the first retention pin is removed from the first opening in the trocar housing to release the trocar assembly from the tubular housing.2. The adapter assembly according to claim 1 , wherein the first retention pin defines a hole and the camming member includes a first arm disposed within the hole of the first retention pin claim 1 , such that movement of the first arm of the camming member moves the first retention pin between the first and second positions.3. The adapter assembly according to claim 2 , wherein the first arm of the camming member has an oblique section disposed within the ...

METHOD FOR FORMING A STAPLE

A method for deforming a staple comprising a base, a first staple leg, and a second staple leg, wherein the base, the first staple leg, and the second staple leg are positioned within a common plane prior to being deformed, the method comprising positioning the first staple leg within a first cup of a staple pocket, the first cup comprising a first inner surface, applying a first compressive force to the first staple leg to bend the first staple leg toward the base and the second staple leg, contacting the first inner surface with the end of the first staple leg to bend the end of the first staple leg toward a first side of the base, and deforming the first staple leg such that the end of the first staple leg crosses a mid-line of the staple defined between the first staple leg and the second staple leg. 1. A method of forming a surgical staple comprising a base , a first staple leg , and a second staple leg , wherein the base , the first staple leg , and the second staple leg are positioned within a common plane prior to being deformed by an anvil , said method comprisingsupporting the base of the staple;positioning a staple pocket of the anvil in opposition to the staple, wherein the staple pocket comprises a longitudinal axis;positioning the first staple leg within a first cup of the staple pocket, wherein the first cup comprises a first inner surface at least partially positioned on a first side of the longitudinal axis;positioning the second staple leg within a second cup of the staple pocket, wherein the second cup comprises a second inner surface at least partially positioned on a second side of the longitudinal axis;applying a first compressive force to an end of the first staple leg to bend the first staple leg toward the base and toward the second staple leg;applying a second compressive force to an end of the second staple leg to bend the second staple leg toward the base and toward the first staple leg;contacting the first inner surface with the end of ...

FASTENER CARTRIDGE ASSEMBLY COMPRISING A MOVABLE CARTRIDGE AND A STAPLE DRIVER ARRANGEMENT

A surgical stapling device that comprises an end effector. According to various embodiments, the end effector comprises a circular anvil having a staple forming surface and a plurality of staples facing the staple forming surface of the anvil. The end effector also comprises a staple driver assembly comprising a plurality of staple drivers. Each staple driver supports one of the plurality of staples and is configured such that, when the staple driver assembly is actuated, each staple driver drives the staple into the staple forming surface of the anvil. A first quantity of the plurality of staple drivers has a first height and a second quantity of the plurality of staple drivers has a second height, wherein the first height is less than the second height. 1. An end effector for a surgical fastening instrument , said end effector comprising:a frame;a proximal portion;a distal end portion; a cartridge;', 'a plurality of fastener cavities defined in said cartridge;', 'a slot configured to receive a cutting member;', 'a row of first fasteners removably stored in said cartridge, wherein said row of first fasteners extends between said proximal portion and said distal end portion alongside said slot; and', 'a row of second fasteners removably stored in said cartridge, wherein said row of second fasteners extends between said proximal portion and said distal end portion alongside said row of first fasteners;, 'a first jaw, comprisinga second jaw extending from said frame, wherein said second jaw comprises an anvil configured to deform said fasteners, wherein said cartridge is movable toward said anvil;a firing member movable toward said distal end portion; anda fastener driver, wherein said fastener driver supports a first fastener and a second fastener, wherein said first fastener is positioned distally with respect to said second fastener, wherein said firing member is configured to lift said fastener driver toward said anvil, wherein said fastener driver and said anvil ...

SURGICAL STAPLING APPARATUS WITH ANVIL BUTTRESS

A circular stapling apparatus includes a buttress and an anvil head assembly. The anvil head assembly includes an anvil head and an anvil cap secured to the anvil head. The anvil cap is positioned to selectively secure the buttress to the anvil head. The anvil cap is flexible and includes an outer ring that is selectively movable relative to the anvil head to release the buttress from the anvil head. 1. A stapling apparatus , comprising:an anvil head including a top surface and a bottom surface, the bottom surface defining staple forming pockets;a buttress supported on the bottom surface of the anvil head and positioned to cover the staple forming pockets; andan anvil cap secured to the top surface of the anvil head and positioned to selectively secure the buttress to the anvil head, the anvil cap including an inner ring assembly and an outer ring, the outer ring selectively engagable with the buttress and movable relative to the inner ring assembly to separate the anvil cap from the buttress and release the buttress from the anvil head.2. The stapling apparatus of claim 1 , wherein the inner ring assembly is flexible to facilitate movement of the outer ring relative to the buttress.3. The stapling apparatus of claim 2 , wherein the inner ring assembly includes a flexible cup and an annular flange that connects the flexible cup to the outer ring.4. The stapling apparatus of claim 3 , further comprising a fastener that secures the anvil cap to the anvil head and seats within the flexible cup.5. The stapling apparatus of claim 4 , further comprising a pin positioned in the anvil head and movable relative to the anvil head to move the outer ring away from the buttress while the fastener maintains the flexible cup secured to the anvil head.6. The stapling apparatus of claim 5 , wherein the pin is integral with the anvil cap.7. The stapling apparatus of claim 5 , wherein the anvil head supports a backup plate that is movable relative to the anvil head claim 5 , the ...

CIRCULAR ANVIL INTRODUCTION SYSTEM WITH ALIGNMENT FEATURE

An apparatus is provided for stapling tissue. The apparatus includes an anvil and a trocar selectively coupled with the anvil. The anvil may have an inner opening and a plurality of staple pockets aligned around a surface of the anvil. The anvil may be inserted trans-orally through an esophagus prior to being coupled with the trocar. The trocar may include a shaft and a locking assembly. The locking assembly may secure the anvil in position relative to the trocar when the locking assembly is in the expanded position. The apparatus may also include an alignment assembly to align the staple pockets of the anvil relative to the apparatus. The apparatus may also include an introduction assembly to guide the anvil through the esophagus. 1. An apparatus for stapling tissue , the apparatus comprising: (i) a body, wherein the body has a disc shape,', '(ii) an inner opening formed through the body, and', '(iii) a plurality of staple pockets, wherein the plurality of staple pockets are positioned along a surface of the body;', 'wherein the anvil is configured to be inserted through a bodily lumen; and, '(a) an anvil, wherein the anvil comprises (i) a shaft, and', '(ii) a locking assembly configured to transition from a collapsed position to an expanded position, wherein the locking assembly is operable to secure the anvil in position relative to the shaft of the trocar when the locking assembly is in the expanded position., '(b) a trocar selectively coupled with the anvil, wherein the trocar comprises2. The apparatus of claim 1 , wherein the anvil comprises a first plurality of staple pockets positioned along a top surface and a second plurality of staple pockets positioned along a bottom surface of the body.3. The apparatus of claim 1 , wherein the locking assembly comprises at least one resilient tab extending from the shaft of the trocar.4. The apparatus of claim 3 , wherein the locking assembly comprises a pair of resilient tabs extending from the shaft of the trocar.5. ...

ANVIL ASSEMBLY WITH SNAP BACKUP RING

An anvil assembly is provided. The anvil assembly includes center rod assembly, a head assembly pivotal relative to the center rod assembly between an operative position and a tilted position, and a mechanism for selectively maintaining the head assembly in the operative position. 1. An anvil assembly comprising:a center rod assembly; and a housing;', 'a post extending proximally from the housing and defining a proximal annular groove; and', 'a backup member operably supported about the post, wherein the backup member is movable from a first position in which a portion of the backup member is positioned to prevent pivotal movement of the head assembly from the operative position to the tilted position, to a second position in which the backup member is positioned to permit pivotal movement of the head assembly from the operative position to a tilted position, the backup member including a first locking feature and a second locking feature receivable within the proximal annular groove of the post to maintain the backup member in the first position., 'a head assembly pivotally supported on the center rod assembly between an operative position and a tilted position, the head assembly including2. The anvil assembly according to claim 1 , wherein the post further defines a distal annular groove claim 1 , the first and second locking features being received within the distal annular groove to maintain the backup member in the second position.3. The anvil assembly according to claim 1 , wherein the center rod assembly includes a center rod having at least one tab claim 1 , wherein the at least one tab engages the backup member when the backup member is in the first position to maintain the head assembly in the operative position.4. The anvil assembly according to claim 3 , wherein movement of the backup member from the first position to the second position disengages the backup member from the at least one tab to permit the head assembly to move to the tilted position.5. ...

CIRCULAR STAPLER WITH SELECTABLE MOTORIZED AND MANUAL CONTROL

An apparatus is operable to clamp, cut, and staple tissue. The apparatus includes a stapling head assembly, a shaft assembly coupled to the stapling head assembly, and an actuator handle assembly coupled to the shaft assembly. The stapling head assembly is operable to clamp tissue, cut tissue, and staple tissue in response to rotation imparted by a single rotary drive shaft extending through the shaft assembly. The actuator handle assembly includes a motor positioned within a motor housing, a rotation knob, and a selection assembly. The rotation knob is coupled to a proximal end of the motor housing. The rotation knob is configured to translate between a proximal position and a distal position. The selection assembly is operable to select between motorized operation of the apparatus or manual operation of the apparatus, based on the longitudinal position of the rotation knob. 1. An apparatus for stapling tissue , the apparatus comprising:(a) a stapling head assembly;(b) a shaft assembly coupled to the stapling head assembly; and (i) a motor positioned within a motor housing,', '(ii) a motor housing positioner coupled to a proximal end of the motor housing, wherein the motor housing positioner is configured to translate between a proximal position and a distal position, and', '(iii) a selection assembly, wherein the selection assembly is operable to select between a motorized operation of the stapling head assembly or a manual operation of the stapling head assembly based on the position of the motor housing positioner., '(c) a handle assembly coupled to the shaft assembly, wherein the handle assembly comprises2. The apparatus of claim 1 , wherein the motor housing positioner comprises a rotation knob.3. The apparatus of claim 2 , wherein the rotation knob comprises splines extending distally claim 2 , wherein the handle assembly comprises a housing claim 2 , wherein the housing comprises teeth corresponding with the splines claim 2 , wherein the splines are ...

Circular stapler with selectable motorized and manual control, including a control ring

An apparatus for stapling tissue comprises a stapling head assembly, a rotary drive shaft, and a mode selector. The stapling head assembly comprises a closure assembly and a firing assembly. The closure assembly is operable to clamp tissue against an anvil. The firing assembly is operable to drive at least one staple through tissue toward the anvil. The mode selector is operable to select between a tissue clamping mode and a firing mode. The rotary drive shaft is operable to actuate the closure assembly in response to selection of the tissue clamping mode. The rotary drive shaft is operable to actuate the firing assembly in response to selection of the firing mode. The mode selector may translate the rotary drive shaft between a first longitudinal position and a second longitudinal position to select between the tissue clamping mode and the firing mode. The mode selector may comprise a sliding ring.

CIRCULAR STAPLER WITH SELECTABLE MOTORIZED AND MANUAL CONTROL, INCLUDING A CONTROL RING

An apparatus for stapling tissue comprises a stapling head assembly, a rotary drive shaft, and a mode selector. The stapling head assembly comprises a closure assembly and a firing assembly. The closure assembly is operable to clamp tissue against an anvil. The firing assembly is operable to drive at least one staple through tissue toward the anvil. The mode selector is operable to select between a tissue clamping mode and a firing mode. The rotary drive shaft is operable to actuate the closure assembly in response to selection of the tissue clamping mode. The rotary drive shaft is operable to actuate the firing assembly in response to selection of the firing mode. The mode selector may translate the rotary drive shaft between a first longitudinal position and a second longitudinal position to select between the tissue clamping mode and the firing mode. The mode selector may comprise a sliding ring. 1. An apparatus for stapling tissue , the apparatus comprising: (i) a closure assembly operable to clamp tissue against an anvil, and', '(ii) a firing assembly operable to drive at least one staple through tissue toward the anvil;, '(a) a stapling head assembly, wherein the stapling head assembly comprises(b) a rotary drive shaft in communication with the stapling head assembly; and(c) a body assembly coupled to the rotary drive shaft, wherein the body assembly comprises a mode selector operable to select between a tissue clamping mode and a firing mode, wherein the rotary drive shaft is operable to actuate the closure assembly in response to selection of the tissue clamping mode, wherein the rotary drive shaft is operable to actuate the firing assembly in response to selection of the firing mode.2. The apparatus of claim 1 , wherein the mode selector is operable to translate the rotary drive shaft between a first longitudinal position and a second longitudinal position to select between the tissue clamping mode and the firing mode.3. The apparatus of claim 1 , wherein ...

CIRCULAR STAPLER WITH SELECTABLE MOTORIZED AND MANUAL CONTROL, INCLUDING A CONTROL RING

An apparatus for stapling tissue comprises a stapling head assembly, a rotary drive shaft, and a mode selector. The stapling head assembly comprises a closure assembly and a firing assembly. The closure assembly is operable to clamp tissue against an anvil. The firing assembly is operable to drive at least one staple through tissue toward the anvil. The mode selector is operable to select between a tissue clamping mode and a firing mode. The rotary drive shaft is operable to actuate the closure assembly in response to selection of the tissue clamping mode. The rotary drive shaft is operable to actuate the firing assembly in response to selection of the firing mode. The mode selector may translate the rotary drive shaft between a first longitudinal position and a second longitudinal position to select between the tissue clamping mode and the firing mode. The mode selector may comprise a sliding ring. 1. An apparatus for stapling tissue , the apparatus comprising: (i) a closure assembly operable to clamp tissue against an anvil, and', '(ii) a firing assembly operable to drive at least one staple through tissue toward the anvil;, '(a) a stapling head assembly, wherein the stapling head assembly comprises(b) a rotary drive shaft in communication with the stapling head assembly; and(c) a body assembly coupled to the rotary drive shaft, wherein the body assembly comprises a mode selector operable to select between a tissue clamping mode and a firing mode, wherein the rotary drive shaft is operable to actuate the closure assembly in response to selection of the tissue clamping mode, wherein the rotary drive shaft is operable to actuate the firing assembly in response to selection of the firing mode.2. The apparatus of claim 1 , wherein the mode selector is operable to translate the rotary drive shaft between a first longitudinal position and a second longitudinal position to select between the tissue clamping mode and the firing mode.3. The apparatus of claim 1 , wherein ...

CIRCULAR STAPLER WITH SELECTABLE MOTORIZED AND MANUAL CONTROL, INCLUDING A CONTROL RING

An apparatus for stapling tissue comprises a stapling head assembly, a rotary drive shaft, and a mode selector. The stapling head assembly comprises a closure assembly and a firing assembly. The closure assembly is operable to clamp tissue against an anvil. The firing assembly is operable to drive at least one staple through tissue toward the anvil. The mode selector is operable to select between a tissue clamping mode and a firing mode. The rotary drive shaft is operable to actuate the closure assembly in response to selection of the tissue clamping mode. The rotary drive shaft is operable to actuate the firing assembly in response to selection of the firing mode. The mode selector may translate the rotary drive shaft between a first longitudinal position and a second longitudinal position to select between the tissue clamping mode and the firing mode. The mode selector may comprise a sliding ring. 1. An apparatus for stapling tissue , the apparatus comprising: (i) a closure assembly operable to clamp tissue against an anvil, and', '(ii) a firing assembly operable to drive at least one staple through tissue toward the anvil;, '(a) a stapling head assembly, wherein the stapling head assembly comprises(b) a rotary drive shaft in communication with the stapling head assembly; and(c) a body assembly coupled to the rotary drive shaft, wherein the body assembly comprises a mode selector operable to select between a tissue clamping mode and a firing mode, wherein the rotary drive shaft is operable to actuate the closure assembly in response to selection of the tissue clamping mode, wherein the rotary drive shaft is operable to actuate the firing assembly in response to selection of the firing mode.2. The apparatus of claim 1 , wherein the mode selector is operable to translate the rotary drive shaft between a first longitudinal position and a second longitudinal position to select between the tissue clamping mode and the firing mode.3. The apparatus of claim 1 , wherein ...

CIRCULAR STAPLER WITH SELECTABLE MOTORIZED AND MANUAL CONTROL, INCLUDING A CONTROL RING

An apparatus for stapling tissue comprises a stapling head assembly, a rotary drive shaft, and a mode selector. The stapling head assembly comprises a closure assembly and a firing assembly. The closure assembly is operable to clamp tissue against an anvil. The firing assembly is operable to drive at least one staple through tissue toward the anvil. The mode selector is operable to select between a tissue clamping mode and a firing mode. The rotary drive shaft is operable to actuate the closure assembly in response to selection of the tissue clamping mode. The rotary drive shaft is operable to actuate the firing assembly in response to selection of the firing mode. The mode selector may translate the rotary drive shaft between a first longitudinal position and a second longitudinal position to select between the tissue clamping mode and the firing mode. The mode selector may comprise a sliding ring. 1. An apparatus for stapling tissue , the apparatus comprising: (i) a closure assembly operable to clamp tissue against an anvil, and', '(ii) a firing assembly operable to drive at least one staple through tissue toward the anvil;, '(a) a stapling head assembly, wherein the stapling head assembly comprises(b) a rotary drive shaft in communication with the stapling head assembly; and(c) a body assembly coupled to the rotary drive shaft, wherein the body assembly comprises a mode selector operable to select between a tissue clamping mode and a firing mode, wherein the rotary drive shaft is operable to actuate the closure assembly in response to selection of the tissue clamping mode, wherein the rotary drive shaft is operable to actuate the firing assembly in response to selection of the firing mode.2. The apparatus of claim 1 , wherein the mode selector is operable to translate the rotary drive shaft between a first longitudinal position and a second longitudinal position to select between the tissue clamping mode and the firing mode.3. The apparatus of claim 1 , wherein ...

METHODS AND STRUCTURE FOR CONFIRMING PROPER ASSEMBLY OF POWERED SURGICAL STAPLING SYSTEMS

A surgical stapling system includes an adapter assembly, a trocar assembly attachable to the adapter assembly, a processor, and memory. The memory includes instructions executable by the processor to cause the trocar assembly to move relative to the adapter assembly and determine whether the trocar assembly is properly attached to the adapter assembly. Such determination is based on an amount of force applied between the trocar assembly and the adapter assembly, an amount of current detected in the surgical stapling system, or an amount of time the trocar assembly moves relative to the adapter assembly without an indication that the amount of force is within a predetermined range. 1. A surgical stapling system , comprising:an adapter assembly;a trocar assembly selectively attachable to the adapter assembly;a processor; move the trocar assembly relative to the adapter assembly; and', an amount of force applied between the trocar assembly and the adapter assembly when the trocar assembly is moved relative to the adapter assembly;', 'an amount of current detected in the surgical stapling system when the trocar assembly is moved relative to the adapter assembly; or', 'an amount of time the trocar assembly moves relative to the adapter assembly without an indication that the amount of force is in a predetermined range., 'determine whether the trocar assembly is properly attached to the adapter assembly based on at least one of], 'a memory including instructions stored thereon, which when executed by the processor, cause the surgical stapling system to2. The surgical stapling system of claim 1 , further comprising a tip protector mounted to the trocar assembly.3. The surgical stapling system of claim 2 , wherein the trocar assembly includes a trocar that is operatively coupled to a lead screw claim 2 , the lead screw positioned to move the trocar relative to an outer housing of the adapter assembly to move the tip protector into engagement with the outer housing.4. The ...

Handheld electromechanical surgical system

The present disclosure relates to adapter assemblies for use with and to electrically and mechanically interconnect electromechanical surgical devices and surgical reloads, and to surgical systems including handheld electromechanical surgical devices and adapter assemblies for connecting surgical reloads to the handheld electromechanical surgical devices.

ADHESION PROMOTION DEVICE

An adhesion promotion device is disclosed, which is capable of reducing risk factors of an anastomotic leakage after surgery. The adhesion promotion device has a main body portion disposed between biological organs serving as a joint object. The main body portion has a first region and a second region formed along an outer edge of the first region. The second region includes an adhesion promotion portion that promotes adhesion of a biological tissue. The first region includes a holding portion having a holding force with respect to the biological tissue which is stronger than that of the adhesion promotion portion. 1. An adhesion promotion device , the adhesion promotion device comprising:a main body portion disposed between biological organs serving as an object to be joined, the main body portion including a first region and a second region, the second region formed along an outer edge of the first region;the second region includes an adhesion promotion portion that promotes adhesion of a biological tissue; andthe first region includes a holding portion having a holding force with respect to the biological organs which is stronger than that of the adhesion promotion portion.2. The adhesion promotion device according to claim 1 , wherein the holding portion is integrally formed at a portion of an outer surface of the main body portion.3. The adhesion promotion device according to claim 1 , wherein the holding portion is separate from the main body portion claim 1 , and is connected to a portion of the outer surface of the main body portion while covering the portion of the outer surface of the main body portion.4. The adhesion promotion device according to claim 1 , wherein the holding portion includes at least one projection.5. The adhesion promotion device according to claim 1 , wherein the main body portion further has an insertion portion formed of an elastic member claim 1 , and the insertion portion further has an insertion hole into which a medical ...

ADJUNCT MATERIALS AND METHODS OF USING SAME IN SURGICAL METHODS FOR TISSUE SEALING

Surgical methods involving cutting and sealing tissue include affixing a first adjunct material to tissue at a treatment site, such as by stapling the adjunct to tissue. A second adjunct material is applied to at least a portion of the first adjunct material such that the second adjunct material interacts with the first adjunct material to form a seal in an area of the tissue covered by at least one of the first and the second adjunct material. The resulting tissue sealing structure, which includes a combination of the two adjuncts, is believed to be superior to the sealing properties of either adjunct alone. 119.-. (canceled)20. A method for forming an adjunct , comprising:weaving first fibers together to form a first layer; andinterlocking or knotting second fibers with the first woven fibers to form a second layer that is connected to the first layer,wherein the adjunct is configured to be elastically deformable, to be releasably retained on a stapling body, and to allow a plurality of staples disposed within the stapling body to pass therethrough such that the adjunct can be attached to tissue by the plurality of staples.21. The method of claim 20 , wherein at least one of the first layer and the second layer are configured to releasably couple to the stapling body.22. The method of claim 20 , wherein the first fibers are made of a first bioabsorbable polymer and the second fibers are made of a second bioabsorbable polymer that is different than the first bioabsorbable polymer.23. The method of claim 20 , further comprising interlocking or knotting third fibers with the second fibers to form a third layer claim 20 , wherein the second layer is positioned between the first and third layers.24. The method of claim 23 , wherein the second fibers extend from the first layer to the second layer claim 23 , wherein at least a portion of the second fibers within the second layer are oriented in a different direction compared to an orientation of at least one of the ...

SURGICAL STAPLING DEVICE WITH FLEXIBLE SHAFT

A circular stapling device includes an elongate body having a flexible outer tube that supports a reload assembly, a flexible inner cable that supports an anvil assembly, and a flexible central tube that is supported about the inner cable and within the outer tube. The stapling device is configured to access body cavities which cannot be easily accessed by a circular stapling device having a rigid shaft. 1. A surgical stapling device comprising:a handle assembly including a stationary handle, a trigger coupled to the stationary handle, and a rotation knob;an elongate body including a flexible outer tube, a flexible central tube, and a flexible inner cable, the flexible outer tube having a proximal portion and a distal portion, the proximal portion of the flexible outer tube fixedly coupled to the stationary handle of the handle assembly, the flexible central tube having a proximal portion and a distal portion and movable within the flexible outer tube between retracted and advanced positions, the proximal portion of the flexible central tube coupled to the trigger of the handle assembly such that actuation of the trigger causes movement of the flexible central tube between its retracted and advanced positions, the flexible inner cable movable within the central tube between advanced and retracted positions and including a proximal portion and a distal portion, the distal portion of the flexible central tube supporting an anvil retainer, the proximal portion of the flexible inner cable coupled to the rotation knob such that rotation of the rotation knob in relation to the stationary housing of the handle assembly causes movement of the flexible inner cable between its retracted and its advanced positions; and a reload assembly supported on the distal portion of the outer tube, the reload assembly including a body supporting a staple cartridge having staples; and', 'an anvil assembly coupled to the anvil retainer, the anvil assembly being movable in relation to the ...

MOTORIZED SURGICAL INSTRUMENT

A surgical cutting and fastening instrument that is motorized. The instrument comprises in one embodiment a charge accumulator device, separate from a battery, that provides additional power to the motor under certain conditions. In addition, the motor may comprise multiple windings. 1. A surgical instrument comprising:an end effector comprising a moveable firing member;an electric motor for actuating the firing member; and a power source connected to the motor for electrically powering the motor;', 'a charge accumulator device; and', a first switch for temporarily connecting the charge accumulator device to the power source not in series to charge the charge accumulator device; and', 'a second switch for selectively connecting the charge accumulator device in series with the power source to provide additional power to the motor, wherein, when the first switch is temporarily connecting the charge accumulator device to the power source, the second switch is not selectively connecting the charge accumulator device in series with the power source., 'a switching circuit connected to the power source and the charge accumulator device, wherein the switching circuit comprises], 'a motor control circuit for controlling the motor, wherein the motor control circuit comprises2. The surgical instrument of claim 1 , wherein the charge accumulator device comprises a capacitor.3. The surgical instrument of claim 2 , wherein the charge accumulator device comprises an ultracapacitor.4. The surgical instrument of claim 1 , wherein the power source comprises a plurality of series connected battery cells.5. The surgical instrument of claim 4 , further comprising a power source selection switch connected to the power source for connecting claim 4 , when in a first state claim 4 , all of the power sources to the motor claim 4 , and claim 4 , when in a second state claim 4 , a subset of the power sources to the motor.6. The surgical cutting and fastening instrument of claim 1 , wherein ...

MOTORIZED SURGICAL INSTRUMENT

A surgical cutting and fastening instrument that is motorized. The instrument comprises in one embodiment a charge accumulator device, separate from a battery, that provides additional power to the motor under certain conditions. In addition, the motor may comprise multiple windings. 1. A surgical instrument comprising:an end effector comprising a moveable firing member;an electric motor for actuating the firing member; and a power source connected to the motor for electrically powering the motor;', 'a charge accumulator device; and', a first switch for temporarily connecting the charge accumulator device to the power source not in series to charge the charge accumulator device; and', 'a second switch for selectively connecting the charge accumulator device in series with the power source to provide additional power to the motor, wherein, when the first switch is temporarily connecting the charge accumulator device to the power source, the second switch is not selectively connecting the charge accumulator device in series with the power source., 'a switching circuit connected to the power source and the charge accumulator device, wherein the switching circuit comprises], 'a motor control circuit for controlling the motor, wherein the motor control circuit comprises2. The surgical instrument of claim 1 , wherein the charge accumulator device comprises a capacitor.3. The surgical instrument of claim 2 , wherein the charge accumulator device comprises an ultracapacitor.4. The surgical instrument of claim 1 , wherein the power source comprises a plurality of series connected battery cells.5. The surgical instrument of claim 4 , further comprising a power source selection switch connected to the power source for connecting claim 4 , when in a first state claim 4 , all of the power sources to the motor claim 4 , and claim 4 , when in a second state claim 4 , a subset of the power sources to the motor.6. The surgical cutting and fastening instrument of claim 1 , wherein ...

END EFFECTOR FOR USE WITH A SURGICAL FASTENING INSTRUMENT

A surgical staple including a crown and a deformable member extending from the crown, the deformable member having a notch configured to cause the deformable member to bend at the notch when the staple is deformed from a first shape into a second shape. The crown of the surgical staple, in various embodiments, further includes a forming surface, or anvil, which is configured to deform the deformable member and/or guide a distal end of the deformable member when the distal end contacts the crown. 117-. (canceled)18. A staple cartridge , comprising:a cartridge body; a crown; and', 'a first deformable member extending from said crown; and, 'a surgical staple, wherein said surgical staple is movable from an unfired position to a fired position, wherein said surgical staple is deformable from a first shape in said unfired position to a second shape in said fired position, wherein said surgical staple comprisesa compressible member positioned intermediate said first deformable member and said crown after said staple has been deformed into said second shape, wherein said compressible member is at least partially positioned within said surgical staple when said surgical staple is in said unfired position.19. The staple cartridge of claim 18 , wherein said compressible member is comprised of foam.20. The staple cartridge of claim 18 , further comprising a firing member configured to translate within said cartridge body to move said surgical staple from said unfired position to said fired position.21. The staple cartridge of claim 18 , wherein said compressible member is configured to bias tissue positioned intermediate said compressible member and said first deformable member against said first deformable member.22. The staple cartridge of claim 21 , wherein said surgical staple further includes a second deformable member extending from said crown claim 21 , said compressible member configured to bias the tissue against said second deformable member.23. The staple cartridge ...

TILTING ANVIL FOR ANNULAR SURGICAL STAPLER

A surgical stapling instrument is disclosed, the instrument having a handle assembly, a body portion having a staple cartridge assembly, and an anvil assembly. The anvil assembly includes an anvil head, an anvil member, an anvil shaft, and a biasing member. The anvil shaft defines a longitudinal axis and the anvil member is pivotally secured to the anvil head. The biasing member is supported on the anvil assembly to urge the anvil member from a first position to a second position defining an angle with respect to the longitudinal axis. 1. (canceled)2. An anvil assembly comprising:an anvil shaft having proximal and distal portions and defining a longitudinal axis, the proximal portion being configured for releasable connection with an actuation device;an anvil head secured to the distal portion of the anvil shaft; andan anvil member pivotally connected to the anvil head and having a tissue contacting surface that defines staple forming recesses, the anvil member being pivotable about an axis that is laterally spaced from and transverse to the longitudinal axis of the anvil shaft from a first position in which the tissue contacting surface is perpendicular to the longitudinal axis and a second position in which the tissue contacting surface is at an angle relative to the longitudinal axis.3. The anvil assembly according to claim 2 , further including a connector disposed within the anvil head claim 2 , wherein the connector is movable from an initial position in engagement with the anvil member to secure the anvil member in the first position claim 2 , to a subsequent position disengaged from the anvil member to permit pivoting of the anvil member to the second position.4. The anvil assembly of claim 3 , further including a biasing member positioned to urge the anvil member from the first position towards the second position.5. The anvil assembly of claim 4 , wherein the anvil head defines a notch configured to retaining the biasing member within the anvil head.6. The ...

METHODS AND DEVICES FOR PERFORMING A SURGICAL ANASTOMOSIS

A circular stapler is disclosed. The circular stapler includes a handle assembly, an elongate body, a cartridge assembly, a trocar, and a light source. The elongate body extends from the handle assembly and defines a longitudinal axis. The cartridge assembly is disposed adjacent a distal end of the elongate body and includes a pusher assembly. The pusher assembly is movable to cause staples to be ejected from the cartridge assembly. The trocar is disposed in mechanical cooperation with the cartridge assembly and is longitudinally advanceable to puncture tissue. The light source is disposed in mechanical cooperation with the trocar, and is configured to project a light beam distally of the trocar. 1. A circular stapler comprising:a handle assembly;an elongate body extending from the handle assembly and defining a longitudinal axis;a cartridge assembly disposed adjacent a distal end of the elongate body, the cartridge assembly including a pusher assembly, the pusher assembly being movable to cause staples to be ejected from the cartridge assembly;a trocar disposed in mechanical cooperation with the cartridge assembly and being longitudinally advanceable to puncture tissue; anda light source disposed in mechanical cooperation with the trocar, the light source configured to project a light beam distally of the trocar.2. The circular stapler of claim 1 , wherein the light source includes a laser.3. The circular stapler of claim 2 , wherein the laser is at least partially disposed within the trocar.4. The circular stapler of claim 3 , wherein a distal tip of the trocar is one of transparent or translucent.5. The circular stapler of claim 1 , wherein the light source is at least partially disposed within the trocar.6. The circular stapler of claim 5 , wherein a distal tip of the trocar is one of transparent or translucent.7. The circular stapler of claim 1 , wherein the light source is configured to project a light beam in a concentrated area directly in the path of travel ...

Surgical stapling instrument

A surgical stapler can comprise an anvil comprising a staple pocket formed in a tissue contacting surface. The staple pocket can comprise a midline or centerline, a first forming cup, and a second forming cup. The first forming cup can comprise a first interior sidewall comprising a first vertical portion which is substantially perpendicular to the tissue contacting surface. The second forming cup can comprise a second interior sidewall comprising a second vertical portion which is substantially perpendicular to the tissue contacting surface. The first vertical portion and the second vertical portion can extend through the centerline, wherein the first interior sidewall and the second interior sidewall can comprise a trap for deforming a first staple leg of a staple to a first side of the centerline and for deforming a second staple leg of the staple to a second side of the centerline.

LOADING UNIT LOCKING COLLAR WITH LINEARLY ACTUATED RELEASE

A loading unit includes a shell assembly, a lock collar, and a release collar. The shell assembly has a coupling ring that defines a lock slot and a proximal opening configured to receive a distal end portion of a surgical instrument. The lock collar is disposed about the coupling ring and has a radially extending lock that is configured to be received within the lock slot. The lock collar is transitionable between a locked configuration in which the lock is positioned within the lock slot and an unlocked configuration in which the lock is lifted from within the lock slot. The release collar is disposed about the coupling ring proximal of the lock collar and is transitionable between an unactuated position and an actuated position. The release collar transitioning the lock collar to the unlocked configuration as the release collar is translated from the unactutated position towards the actuated position. 1. A loading unit comprising:a shell assembly having a coupling ring defining a proximal opening configured to receive a distal end portion of a surgical instrument, the coupling ring defining a lock slot;a lock collar disposed about the coupling ring, the lock collar including a radially extending lock configured to be received within the lock slot, the lock collar being transitionable between a locked configuration, in which the lock is positioned within the lock slot, and an unlocked configuration, in which the lock is lifted from within the lock slot, the lock collar configured to secure the loading unit to a surgical instrument in the locked configuration; anda release collar disposed about the coupling ring proximal of the lock collar, the release collar translatable between an unactuated position and an actuated position, the release collar transitioning the lock collar to the unlocked configuration as the release collar is translated from the unactuated position towards the actuated position.2. The loading unit according to claim 1 , wherein the lock collar ...

RELOAD ASSEMBLY FOR A CIRCULAR STAPLING DEVICE

A reload assembly includes a shell housing, a staple cartridge, a staple actuator, and a knife carrier. In embodiments, the knife carrier or the shell housing defines a locking groove and the other of the knife carrier and the shell housing supports a locking member. In other embodiments, the knife carrier or the staple actuator defines a locking groove and the other of the knife carrier and the staple actuator supports a locking member. The locking member is received within and movable through the locking groove to prevent readvancement of the knife carrier after the reload assembly is fired. 1. A reload assembly comprising:a shell housing including an inner housing portion and an outer housing portion, the inner housing portion spaced from the outer housing portion to define an annular cavity between the inner and outer housing portions;a staple cartridge supported on a distal portion of the shell housing, the staple cartridge having a plurality of staple pockets, each of the staple pockets receiving a staple;a staple actuator supported within the annular cavity, the staple actuator movable between a retracted position and an advanced position to eject the staples from the staple cartridge;a knife carrier including a body defining a longitudinal axis and supporting a knife, the body of the knife carrier including an inner wall defining a central bore, the inner housing portion of the shell housing being positioned within the central bore of the knife carrier such that the knife carrier is movable about the inner housing portion of the shell housing between advanced and retracted positions;wherein one of the knife carrier and the shell housing defines a locking groove and the other of the knife carrier and the shell housing supports a locking member, the locking member being received within and movable through the locking groove to prevent readvancement of the knife carrier after the reload assembly is fired.2. The reload assembly of claim 1 , wherein the locking ...

Dissection tip and introducer for surgical instrument

A surgical fastener applying apparatus includes an elongate body portion having proximal and distal ends, an end effector including a first movably coupled to a second jaw that is positioned at the distal end of the elongate body portion, and an introducer member. The introducer member has proximal and distal portions, and is configured and dimensioned for releasable connection with the end effector. The introducer member is at least partially formed from a flexible material, and is configured and dimensioned to separate target tissue from collateral tissue prior to positioning of the target tissue between the first and second jaws of the end effector.

SURGICAL STAPLING DEVICE

A surgical stapling device includes a tool assembly having an anvil assembly and a staple cartridge, the anvil assembly is movable in relation to the staple cartridge between spaced and clamped positions. The anvil assembly includes a housing defining a recess and a mesh material positioned within the recess. The staple cartridge includes a body defining a plurality of staple receiving slots. Each of the staple receiving slots supports a staple. The staple receiving slots are aligned with the recess when the anvil assembly and the staple cartridge are in the clamped position such that the plurality of staples are ejected and penetrate into the mesh material when the tool assembly is fired. Each of the plurality of staples includes a backspan and a leg extending from each end of the backspan. Each of the legs includes a locking structure that is configured to mesh or interlock with the mesh material of the anvil assembly upon penetration of the mesh material by the legs of the staples to obstruct withdrawal of the legs from the locking material. 1. A circular stapling device comprising:a handle assembly;a body portion having a proximal portion and a distal portion, the proximal portion of the body portion being connected to the handle assembly; anda tool assembly supported on the distal portion of the body portion, the tool assembly including an anvil assembly and a shell assembly, the anvil assembly including a center rod and an anvil head assembly, the center rod having a proximal portion and a distal portion, the anvil head assembly being secured to the distal portion of the center rod and including a housing defining an outer annular recess, and a locking material positioned within the outer annular recess, the shell assembly including a shell housing and a staple cartridge, the staple cartridge supporting a plurality of staples that are axially aligned with the annular recess, each of the plurality of staples including a backspan and a leg extending from each ...

Anastomotic Stapling Reinforcing Buttress and Methods of Deployment

The present invention relates to surgical instruments and methods for enhancing properties of tissue repaired or joined by surgical staples and, more particularly to surgical instruments and methods designed to enhance the properties of repaired or adjoined tissue at a target surgical site, especially when sealing an anastomosis between adjacent intestinal sections so as to improve tissue viability, prevent tissue infection, and to prevent leakage. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. A circular anastomosis stapler kit comprising:a. A reinforcing buttress material comprising a substantially flat disk of a flexible, bioabsorbable material having a centrally located aperture and a plurality of radiating slits directed from said centrally located aperture towards a periphery of said disk that forms a plurality of leaflets, said slits terminating in end apertures at a distance from said periphery;b. an anastomotic stapler comprising a stapling head and an anvil moveable longitudinally relative to the stapling head and mounted on an axially extending moveable shaft, with the stapling head containing a plurality of deployable staples,c. a deployment tool comprising a hollow cylindrical body with a slidable plunger partially disposed in said body;d. a cylindrical radially expandable spring sized to fit within said hollow cylindrical body and within a knife cavity of said stapling head.8. The circular anastomosis stapler kit of claim 7 , wherein said spring comprises a spiral made of a flat metallic or polymeric strip or foil tightly wound into a cylinder shape.9. The circular anastomosis stapler kit of claim 8 , wherein said spring has a height from 1 mm to 5 mm.10. A method of establishing an anastomotic joint between tubular tissue lumens with the anastomotic stapler kit of claim 7 , said method comprising the steps of:a) Axially positioning the spring in a compressed state inside the hollow cylindrical bodyb) Axially ...

ANVIL ASSEMBLY AND ANVIL ASSEMBLY DELIVERY SYSTEM

An anvil assembly suitable for trans-oral delivery includes an anvil head configured to receive a guide suture that is separable from the anvil assembly during a stapling procedure. An anvil delivery assembly includes the anvil assembly and a suture guide assembly secured to the anvil assembly. 1. (canceled)2. An anvil assembly comprising:an anvil center rod;a head assembly pivotally secured to the anvil center rod, the head assembly including a housing and a backup member, the backup member being movable between a proximal position and a distal position to permit pivoting of the head assembly relative to the anvil center rod, the housing defining an opening; anda first suture including a loop received within the opening in the housing, wherein when the backup member is in the proximal position, the loop is retained within the opening in the housing, and when the backup member is in the distal position, the loop is releasable from within the opening in the housing.3. The anvil assembly of claim 2 , wherein the head assembly includes a latch member and the backup member includes a retaining post configured to engage the latch member when the backup member is in the proximal position.4. The anvil assembly of claim 3 , wherein the retaining post defines a cutout claim 3 , the cutout being aligned with the latch member when the backup member is in the distal position.5. The anvil assembly of claim 3 , wherein the latch member includes a curved body portion for receiving the loop of the first suture.6. The anvil assembly of claim 4 , wherein the housing defines an arcuate cutout claim 4 , the latch member received within the cutout when the latch member is in the proximal position.7. The anvil assembly of claim 6 , wherein the loop of the first suture is retained within the cutout when the latch member is in the proximal position by the latch member.8. The anvil assembly of claim 2 , wherein the head assembly includes a retainer member for maintaining the backup member ...

END EFFECTOR WITH ADJUNCT MATERIALS

An end effector for a surgical instrument is provided that has different types of features for releasably retaining at least one adjunct material. The end effector has a first jaw having a cartridge and a second jaw having an anvil. The attachment feature includes a retaining filament having, an intermediate portion, and first and second ends disposed on opposed sides of the intermediate portion and having end features configured to mate with at least one jaw of the first and second jaws. The attachment feature is arranged to retain the adjunct material such that at least a part of the intermediate portion is disposed over the adjunct material and such that the first and second ends are spaced apart. 1. An end effector for a surgical instrument , comprising:a first jaw having a cartridge with a plurality of staple cavities configured to seat staples therein, the staple cavities formed on a tissue-facing surface of the cartridge;a second jaw opposing the first jaw and having an anvil with a plurality of staple forming cavities formed on a tissue-facing surface thereof, wherein the first and second jaws are configured to clamp tissue therebetween; anda plurality of attachment features formed on the tissue-facing surface of the cartridge and adjacent to the staple cavities, wherein at least a portion of the plurality of attachment features are configured to releasably retain an adjunct material to the first jaw.2. The end effector of claim 1 , wherein a first portion of the plurality of attachment features are located at a first end of the staple cavities.3. The end effector of claim 2 , wherein a second portion of the plurality of attachment features are located at a second end of the staple cavities claim 2 , and wherein the second end is opposite the first end.4. The end effector of claim 1 , wherein the plurality of attachment features have a curved configuration.5. An end effector for a surgical instrument claim 1 , comprising:a first jaw having a cartridge with a ...

STAPLING DEVICE WITH RELEASABLE KNIFE CARRIER

A circular surgical stapling device includes a reload assembly that is supported on a distal end of an elongate shaft of the stapling device. The reload assembly includes a housing, a pusher assembly movably supported within the housing, a knife carrier movably supported within the pusher assembly, and an annular knife supported on the knife carrier. The elongate body includes a pusher drive member and a knife carrier pusher. The knife carrier includes first engagement structure that is configured to releasably engage second engagement structure formed on the knife carrier pusher to releasably couple the knife carrier pusher to the knife carrier. A reload insert or member is supported on or integrally formed with the housing of the reload assembly. The reload member includes a first portion configured to prevent separation of the first and second engagement structures and a second portion configured to accommodate separation of the first and second engagement structures. The reload member minimizes the likelihood of premature disengagement of the knife carrier from the knife carrier pusher while minimizing the force required to effect separation after the knife has been fully retracted into the housing. 120-. (canceled)21. A surgical stapling device comprising:an elongate body defining a longitudinal axis and having a proximal portion and a distal portion, the elongate body including a pusher drive member and a knife carrier pusher, the knife carrier pusher movable independently of the pusher drive member; anda reload assembly including a housing having an inner housing portion defining a housing through bore, a staple cartridge supporting a plurality of staples, a pusher assembly supported within the housing, the pusher assembly movable between a retracted position and an advanced position to eject the plurality of staples from the staple cartridge, a knife carrier, and a knife supported on the knife carrier, the inner housing portion of the housing including an ...

CIRCULAR STAPLER

The present disclosure provides a circular stapler including an instrument body, a handle assembly and a staple pushing rod; wherein an indicator and a strike part are disposed in the instrument body, and the indicator is rotatably connected to the instrument body; when the stapler is in an initial state, the indicator is in a first position area and pressed against the strike part; when the stapler is in a firing state, the indicator is moved to a second position area and separated from the strike part; when the stapler being fired, the indicator returns to the first position area from the second position area, strikes the strike part and emits a strike sound. The strike sound prompts an operator that firing has been successfully completed, so that the operator can know the firing state of the stapler in time and user experience of the operator can be improved. 1. A circular stapler comprising:an instrument body, wherein an indicator and a strike part are disposed in the instrument body, and the indicator is rotatably connected to the instrument body;a handle assembly movably connected to the instrument body; anda staple pushing rod disposed in the instrument body, wherein the staple pushing rod has an initial position and a firing position, and the staple pushing rod is capable of being pushed to the firing position, by the handle assembly, from the initial position;when the circular stapler is in an initial state, a first end of the indicator is in a first position area and located correspondingly to the strike part; when the circular stapler is in a firing state, the first end of the indicator is moved to a second position area and away from the strike part; after the circular stapler being fired, the first end of the indicator returns to the first position area from the second position area, strikes the strike part and emits a strike sound.2. The circular stapler of claim 1 , wherein an elastic limiting member is disposed in the instrument body claim 1 , and a ...

FIRING MECHANISM AND STAPLER

A firing mechanism and a circular stapler are provided. The firing mechanism includes a staple pushing assembly, which includes an actuating rod provided with a stopping groove; a firing handle, wherein a pin post is provided in the firing handle, a first end of the pin post is capable of protruding from a first end of the firing handle and entering the stopping groove, to stop the firing handle from rotating relative to the actuating rod; and a pressing button capable of moving along a first direction to press the first end of the pin post to move towards a second end of the firing handle. Before the stapler reaches a ready-to-fire state, the pin post is inserted in the stopping groove of the actuating rod, to limit the rotation of the firing handle, therefore the operator cannot press the firing handle to fire the stapler. 1. A firing mechanism for a stapler , wherein , the firing mechanism comprises:an actuating rod provided with a stopping groove;a firing handle, wherein a pin post is provided in the firing handle, a first end of the pin post is capable of protruding from a first end of the firing handle and entering the stopping groove, to stop the firing handle from rotating relative to the actuating rod;a pressing button capable of moving along a first direction to press the first end of the pin post to move towards a second end of the firing handle.2. The firing mechanism according to claim 1 , wherein claim 1 , the firing mechanism further comprises a balance block claim 1 , the balance block comprises a rotating portion and a connecting portion claim 1 , the connecting portion of the balance block is connected to the pressing button claim 1 , and when the rotating portion of the balance block rotates claim 1 , the pressing button is driven to move.3. The firing mechanism according to claim 1 , wherein claim 1 , a pin groove for accommodating the pin post is provided in the firing handle claim 1 , and a reset component is provided between a second end of ...

BUTTRESS FOR CIRCULAR EEA STAPLERS

A stapling apparatus includes a cartridge assembly, an anvil assembly, and a buttress material. The cartridge assembly includes pushers configured to eject the respective surgical staples from the cartridge assembly, and an outer wall defining a cavity and having a finger deflectably extending over the cavity. The buttress material includes an annular body and a tab extending proximally from the annular body such that at least a portion of the tab is wrapped around the finger of the outer wall of the staple cartridge assembly. The pushers are movable between a first position in which one of the pushers engages the finger such that the tab is secured against the one of the pushers, and a second position in which the one of the pushers is disengaged from the finger such that a portion of the tab is released from the one of the pushers. 1. (canceled)2. An apparatus for joining two hollow organ sections with an annular array of surgical staples , the apparatus comprising: pushers axially movable to eject the surgical staples from the staple cartridge assembly;', 'a distal surface; and', 'an outer wall defining a cavity and having a finger deflectably extending over the cavity; and, 'a staple cartridge assembly configured to support the annular array of surgical staples therein, the staple cartridge assembly including a body mounted on the distal surface of the staple cartridge assembly; and', 'a tab extending from the body, at least a portion of the tab extending through the cavity of the outer wall to be selectively securable between the finger of the outer wall and one of the pushers., 'a buttress material including3. The apparatus according to claim 2 , wherein the buttress material is releasable from the staple cartridge assembly when the one of the pushers is in a distal position claim 2 , and the buttress material is secured to the staple cartridge assembly when the one of the pushers is in a proximal position.4. The apparatus according to claim 3 , wherein the ...

SURGICAL DEVICE, SURGICAL ADAPTERS FOR USE BETWEEN SURGICAL HANDLE ASSEMBLY AND SURGICAL LOADING UNITS, AND METHODS OF USE

A surgical device comprising a handle housing, an adapter, an elongated portion, an end effector, a first drive element, and a second drive element is disclosed. The adapter includes a first drive assembly configured to mechanically engage a portion of a first actuation mechanism of the handle housing. The elongated portion is configured to extend distally from the adapter. The first drive element is disposed in mechanical cooperation with the first drive assembly. The second drive element is disposed in mechanical cooperation with the first drive assembly. Rotation of the first drive assembly in a first direction about the longitudinal axis causes distal translation of the first drive element. Rotation of the first drive assembly in a second direction about the longitudinal axis causes distal translation of the second drive element. The first direction is opposite from the second direction. 1. A surgical device , comprising:a handle housing supporting a first actuation mechanism;an adapter configured to mechanically engage a portion of the first actuation mechanism;an elongated portion configured to extend distally from the adapter and defining a longitudinal axis;an end effector configured to mechanically engage a distal portion of the elongated portion;a first drive element disposed in mechanical cooperation with the first drive assembly; anda second drive element disposed in mechanical cooperation with the first drive assembly;wherein rotation of the first drive assembly in a first direction about the longitudinal axis causes distal translation of the first drive element, wherein rotation of the first drive assembly in a second direction about the longitudinal axis causes distal translation of the second drive element, and wherein the first direction is opposite from the second direction.2. The surgical device of claim 1 , wherein rotation of the first drive assembly in the first direction causes proximal translation of at least a portion of the second drive ...

Methods and Devices for Performing a Surgical Anastomosis

A circular stapler is disclosed. The circular stapler comprises a handle assembly, an elongate body, and a cartridge assembly. The elongate body extends from the handle assembly and defines a longitudinal axis. The cartridge assembly is disposed adjacent a distal end of the elongate body. The cartridge assembly includes a pusher assembly and a knife assembly. The pusher assembly is movable to cause staples to be ejected from the cartridge assembly. The knife assembly is selectively movable relative to the pusher assembly to distally translate a knife. A knife carrier of the knife assembly includes at least one latch thereon. The at least one latch is configured to contact an engagement surface of the pusher assembly in response to movement between the knife carrier and the pusher assembly. The at least one latch is prevented from distally translating beyond the engagement surface. 1. A circular stapler comprising:a handle assembly;an elongate body extending from the handle assembly and defining a longitudinal axis; anda cartridge assembly disposed adjacent a distal end of the elongate body, the cartridge assembly including a pusher assembly and a knife assembly, the pusher assembly being movable to cause staples to be ejected from the cartridge assembly, the knife assembly being selectively movable relative to the pusher assembly to distally translate a knife, wherein a knife carrier of the knife assembly includes at least one latch thereon, wherein the at least one latch is configured to contact an engagement surface of the pusher assembly in response to movement between the knife carrier and the pusher assembly, and wherein the at least one latch is prevented from distally translating beyond the engagement surface.2. The circular stapler of claim 1 , wherein the at least one latch of the knife carrier is included on a proximal end of a flexible arm claim 1 , and wherein the flexible arm is configured to flex toward the longitudinal axis.3. The circular stapler of ...

MEDICAL ANASTOMOSIS DEVICE

A medical anastomosis device (), having a firing assembly (), a staple anvil (), a staple anvil assembly (), and a staple cartridge assembly (); the firing assembly () includes a staple cartridge push rod () provided with a stop pin () thereon; the staple anvil () is provided with a safety block () therein capable of coordinating with the stop pin (); the safety block () is provided with a clamping groove () thereon; when the anastomosis device () is in an initial status, the safety block () and the stop pin () do not contact each other; when the anastomosis device () is in a firing status, the movement of the safety block () is restricted, and the clamping groove () is located on a movement route from the distal end of the medical anastomosis device () to the proximal end; and when the anastomosis device () returns to the initial status after being fired, the stop pin () is clamped in the clamping groove (), and the safety block () limits the stop pin () in the direction from the proximal end of the medical anastomosis device () to the distal end. The three status jointly compose the complete firing process of the staple cartridge assembly (), preventing a second firing of the staple cartridge push rod () to ensure operation safety. 1. A medical anastomosis device comprising:a firing assembly comprising a staple cartridge push rod and a banking pin;an anvil seat comprising a safety block to mate with the banking pin, the safety block defining a slot;an anvil assembly; anda staple cartridge assembly; wherein, in operation,the firing assembly is used for driving the staple cartridge assembly to move from a proximal end of the anvil seat to a distal end of the anvil seat;when the medical anastomosis device is in an initial status, the safety block does not interfere with the banking pin;when the medical anastomosis device is in a firing status, movement of the safety block is restricted, and the slot is located in a movement route of the banking pin when the banking ...

LOADING UNIT ATTACHMENT BAND FOR SURGICAL STAPLING INSTRUMENT

A loading unit and retention band assembly including a shell and a retention band. The shell has a proximal end portion that defines an engagement window and that includes an annular surface. The retention band is disposed radially about the annular surface of the proximal end portion and includes a resilient body having first and second ends. The first end includes a resilient lock that is configured to extend through the engagement window of the proximal end portion of the shell. The resilient lock is dimensioned to releasably engage a surgical instrument. 111-. (canceled)12. A method of securing a loading unit to a surgical instrument , the method comprising:inserting a distal end of the surgical instrument into a proximal end portion of the loading unit;deforming a retention band disposed on the proximal end portion of the loading unit to allow the loading unit to fully receive the distal end of the surgical instrument, the retention band having first and second ends; andreleasing the retention band when the distal end of the surgical instrument is fully received within the proximal end portion of the loading unit to secure the loading unit to the surgical instrument.13. The method of claim 12 , further comprising attaching the retention band to the proximal end portion of the loading unit.14. The method of claim 13 , wherein attaching the retention band to the proximal end portion of the loading unit precedes inserting a distal end of the surgical instrument into the proximal end portion of the loading unit.15. The method of claim 13 , wherein attaching the retention band to the proximal end portion of the loading unit includes: securing the second end of the retention band to the proximal end portion of the loading unit; andpositioning a body of the retention band within an annular groove defined in the proximal end portion of the loading unit, the body of the retention band being positioned between the first and second ends of the retention band.16. The ...

POLARITY OF HALL MAGNET TO DETECT MISLOADED CARTRIDGE

A surgical stapling system including a shaft assembly transmits actuation motions from an actuator and an end effector compresses and staples tissue. The end effector comprises an channel; an anvil having a staple forming surface is moveable relative to the channel between open and closed positions; the anvil having a magnet at the distal end; and a staple cartridge removably positionable within the channel. The staple cartridge comprises a body supported for a confronting relationship with the anvil in its closed position; a plurality of staple drivers located within the cartridge body support a staple; a Hall effect sensor located at the distal end of the body; and a microprocessor in communication with the Hall effect sensor. The Hall effect sensor and microprocessor receive power when the staple cartridge is positioned within the channel, and the system is operable to identify the staple cartridge. 1. A surgical stapling system comprising:an elongated shaft assembly configured to transmit actuation motions from an actuator; andan end effector for compressing and stapling tissue, the end effector operably coupled to the elongated shaft, the end effector comprising:an elongated channel;an anvil having a staple forming surface thereon, the anvil moveable to relative to the elongated channel between an open position and a closed position; the anvil having a magnet located at the distal end; anda staple cartridge removably positioned within the elongated channel, the staple cartridge comprising:a cartridge body supported for a confronting relationship with the anvil when the anvil is in the closed position;a plurality of staple drivers located within the cartridge body, wherein each one of the plurality of staple drivers supports a staple;a Hall effect sensor located at the distal end of the cartridge body; anda microprocessor in communication with the Hall effect sensor;wherein the Hall effect sensor and microprocessor receive power when the staple cartridge is ...

CIRCULAR STAPLING INSTRUMENTS

A circular stapling instrument including a stapling forming assembly that is actuated independently from actuation of the cutting assembly is provided. The instrument includes a handle assembly, an elongate body extending from the handle assembly, a cartridge assembly mounted on a distal end of the elongate body. The cartridge assembly includes a pusher assembly and a knife assembly. The knife assembly is selectively fixed relative to the pusher assembly. 1. (canceled)2. A cartridge assembly for a circular stapler , the cartridge assembly comprising:a housing;a staple cartridge supported on the housing and including a plurality of staples arranged in an annular array;a pusher assembly operably disposed within the housing and configured to eject the staples from the staple cartridge; anda knife assembly operably disposed within the housing, the knife assembly including a knife pusher and a knife, the knife being selectively fixed relative to the knife pusher and the pusher assembly, wherein the knife pusher and the pusher assembly are mounted for independent movement relative to the knife, the knife pusher being disposed outward of the knife during a first actuation of the cartridge assembly such that the knife pusher moves over the knife, and the knife pusher engaging the knife during a second actuation of the cartridge assembly.3. The cartridge assembly of claim 2 , wherein the knife pusher is advanced a first distance during the first actuation and retracted a second distance following the first actuation claim 2 , the second distance being greater than the first distance.4. The cartridge assembly of claim 2 , wherein the pusher assembly includes a pusher having a ridge formed about an inner surface thereof configured to engage the knife pusher.5. The cartridge assembly of claim 2 , wherein the knife pusher includes a plurality of distally extending fingers.6. The cartridge assembly of claim 5 , wherein each distally extending finger of the plurality of distally ...

Apparatus for ensuring strain gauge accuracy in medical reusable device

An apparatus for ensuring strain gauge accuracy including a handle assembly including a controller, an adapter assembly including a tubular housing having a proximal end portion configured to couple to the handle assembly and a distal end portion, a load sensing assembly configured to measure a load exerted on the tubular housing, and a signal processing circuit electrically coupled to the load sensing assembly, a memory coupled to the signal processing circuit, and a calibration assembly including a biasing member having a known spring rate stored as a force value in the memory, the calibration assembly configured to couple to the distal end portion of the adapter assembly. The signal processing circuit is configured to calibrate the adapter assembly with the calibration assembly attached thereto by calculating a correction factor based on a comparison a force of the spring member measured by the load sensing assembly to the force value.

Surgical visualization with proximity tracking features

A surgical visualization system is disclosed. The surgical visualization system is configured to identify one or more structure(s) and/or determine one or more distances with respect to obscuring tissue and/or the identified structure(s). The surgical visualization system can facilitate avoidance of the identified structure(s) by a surgical device. The surgical visualization system can comprise a first emitter configured to emit a plurality of tissue-penetrating light waves and a second emitter configured to emit structured light onto the surface of tissue. The surgical visualization system can also include an image sensor configured to detect reflected visible light, tissue-penetrating light, and/or structured light. The surgical visualization system can convey information to one or more clinicians regarding the position of one or more hidden identified structures and/or provide one or more proximity indicators.

SURGICAL VISUALIZATION OF MULTIPLE TARGETS

A surgical visualization system is disclosed. The surgical visualization system is configured to identify one or more structure(s) and/or determine one or more distances with respect to obscuring tissue and/or the identified structure(s). The surgical visualization system can facilitate avoidance of the identified structure(s) by a surgical device. The surgical visualization system can comprise a first emitter configured to emit a plurality of tissue-penetrating light waves and a second emitter configured to emit structured light onto the surface of tissue. The surgical visualization system can also include an image sensor configured to detect reflected visible light, tissue-penetrating light, and/or structured light. The surgical visualization system can convey information to one or more clinicians regarding the position of one or more hidden identified structures and/or provide one or more proximity indicators. 1. A surgical visualization system , comprising:an emitter configured to emit a plurality of tissue-penetrating waveforms;a receiver configured to detect the plurality of tissue-penetrating waveforms;an imaging system comprising a display; anda control circuit in signal communication with the receiver, wherein the control circuit is configured to:receive data from the receiver representative of an image of a hidden portion of a surgical device; andprovide the image of the hidden portion of the surgical device to the display.2. The surgical visualization system of claim 1 , further comprising a hyperspectral camera comprising the emitter and the receiver.3. The surgical visualization system of claim 1 , further comprising a tissue surface mapping system comprising a structured light source claim 1 , wherein the control circuit is further configured to:receive data from the tissue surface mapping system representative of a three-dimensional representation of a tissue surface;provide the three-dimensional representation of the tissue surface to the display; ...

VISUALIZATION OF SURGICAL DEVICES

A surgical visualization system is disclosed. The surgical visualization system is configured to identify one or more structure(s) and/or determine one or more distances with respect to obscuring tissue and/or the identified structure(s). The surgical visualization system can facilitate avoidance of the identified structure(s) by a surgical device. The surgical visualization system can comprise a first emitter configured to emit a plurality of tissue-penetrating light waves and a second emitter configured to emit structured light onto the surface of tissue. The surgical visualization system can also include an image sensor configured to detect reflected visible light, tissue-penetrating light, and/or structured light. The surgical visualization system can convey information to one or more clinicians regarding the position of one or more hidden identified structures and/or provide one or more proximity indicators. 1. A surgical visualization system , comprising:a first projector configured to emit a structured light pattern on a surface of an anatomical structure;a second projector configured to emit spectral light in a plurality of wavelengths capable of penetrating the anatomical structure and reaching a staple line; and receive structured light data from the image sensor indicative of the structured light pattern on the surface of the anatomical structure;', 'calculate a three-dimensional representation of the anatomical structure from the structured light data;', 'receive spectral light data from the image sensor indicative of a spectral image of the staple line;', 'generate the spectral image of the staple line from the spectral light data; and', 'determine a distance with respect to the staple line., 'a control circuit in signal communication with an image sensor, wherein the control circuit is configured to2. The surgical visualization system of claim 1 , further comprising a video monitor claim 1 , wherein the control circuit is in signal communication with ...

CIRCULAR STAPLING INSTRUMENTS

A circular stapling instrument including a stapling forming assembly that is actuated independently from actuation of the cutting assembly is provided. The instrument includes a handle assembly, an elongate body extending from the handle assembly, a cartridge assembly mounted on a distal end of the elongate body. The cartridge assembly includes a pusher assembly and a knife assembly. The knife assembly is selectively fixed relative to the pusher assembly. 1. (canceled)2. A method of stapling tissue , comprising advancing a pusher assembly of a surgical stapling instrument in a staple forming stroke , retracting the pusher assembly , and advancing the pusher assembly in a second cutting stroke in which a knife is advanced into tissue.3. The method according to claim 2 , wherein the method includes providing a surgical stapling instrument.4. The method according to claim 3 , wherein the surgical stapling instrument includes an annular array of staples.5. The method according to claim 2 , wherein advancing the pusher assembly causes an ejection and a forming of staples against an anvil.6. The method according to claim 2 , wherein the step of retracting the pusher assembly includes retracting the pusher assembly to a location proximal of an initial location thereof.7. The method according to claim 2 , including the step of advancing a knife pusher during the cutting stroke.8. The method according to claim 7 , wherein the knife pusher does not engage the knife during the staple forming stroke.9. The method according to claim 7 , including engaging the knife pusher with the knife during the cutting stroke.10. The method according to claim 7 , including sliding fingers of the knife pusher past the knife in the staple forming stroke.11. The method according to claim 10 , including engaging the fingers with the knife in the cutting stroke.12. The method according to claim 2 , including adjusting the stroke of the pusher assembly to vary a staple crimp height.13. The method ...

BUTTRESS FIXATION FOR A CIRCULAR STAPLER

A stapling apparatus includes a body portion, a staple cartridge disposed within the body portion, and a buttress removably attached to the staple cartridge. The staple cartridge includes a plurality of staple receiving slots defined in a tissue contacting surface of the staple cartridge, with each staple receiving slot of the plurality of staple receiving slots including a staple disposed therein. The buttress includes a plurality of tabs at an outer edge of the buttress. The buttress is releasably retained on the staple cartridge by at least one tab of the plurality of tabs extending into a staple receiving slot of the plurality of staple receiving slots defined in the staple cartridge. 110.-. (canceled)11. A stapling apparatus comprising:a body portion;a staple cartridge disposed within the body portion, the staple cartridge including a plurality of staple receiving slots defined in a tissue contacting surface of the staple cartridge, each staple receiving slot of the plurality of staple receiving slots including a staple disposed therein; anda buttress including a plurality of tabs at an outer edge of the buttress, the buttress releasably retained on the staple cartridge by at least one tab of the plurality of tabs extending into a staple receiving slot of the plurality of staple receiving slots defined in the staple cartridge.12. The stapling apparatus according to claim 11 , wherein the plurality of tabs of the buttress are formed by slits extending from the outer edge of the buttress.13. The stapling apparatus according to claim 11 , wherein the buttress claim 11 , including the plurality of tabs claim 11 , is shaped as a circular disc.14. The stapling apparatus according to claim 11 , further comprising at least one anchor attached to the buttress.15. The stapling apparatus according to claim 14 , wherein at least one staple receiving slot of the plurality of staple receiving slots includes a notch claim 14 , and the at least one anchor is releasably ...

ANVIL ASSEMBLY AND ANVIL ASSEMBLY DELIVERY SYSTEM

An anvil assembly suitable for trans-oral delivery includes an anvil head configured to receive a guide suture that is separable from the anvil assembly during a stapling procedure. An anvil delivery assembly includes the anvil assembly and a suture guide assembly secured to the anvil assembly. 1. An anvil assembly comprising:an anvil center rod;a head assembly pivotally secured to the anvil center rod, the head assembly including a housing and a latch member mounted within the housing, the latch member being movable between a first position and a second position; anda first suture received about the latch member, wherein in the first position of the latch member, the latch member is positioned to prevent separation of the first suture from the head assembly and in the second position of the latch member, the latch member is positioned to allow separation of the first suture from the head assembly.2. The anvil assembly of claim 1 , wherein the head assembly includes a backup member supported within the housing claim 1 , the backup member being movable within the housing from a proximal position to a distal position.3. The anvil assembly of claim 2 , wherein the backup member includes a retaining post configured to engage the latch member when the backup member is in the proximal position.4. The anvil assembly of claim 3 , wherein the retaining post defines a cutout claim 3 , the cutout being aligned with the latch member when the backup member is in the distal position.5. The anvil assembly of claim 1 , wherein the latch member includes a curved body portion for receiving the first suture thereabout.6. The anvil assembly of claim 1 , wherein the housing defines an arcuate cutout claim 1 , the latch member enclosing the cutout when the latch member is in the first position.7. The anvil assembly of claim 6 , wherein the first suture is retained within the cutout when the latch member is in the first position by the latch member.8. The anvil assembly of claim 2 , ...

SURGICAL INSTRUMENT WITH ELONGATED CHANNEL

A surgical instrument including a handle assembly, an elongated body portion, a head portion and an elongated channel. The elongated body portion extends distally from the handle assembly. The head portion is disposed adjacent a distal end of the elongated body portion and includes an anvil assembly and a shell assembly. The elongated channel includes a proximal opening and a distal opening. The proximal opening is disposed distally of a proximalmost end of the handle assembly and proximally of the shell assembly. The distal opening is disposed on the shell assembly. 1. (canceled)2. A surgical stapling instrument , comprising:a handle assembly;an elongate body portion extending distally from the handle assembly;a head portion disposed adjacent a distal end of the elongate body portion, the head portion including an anvil assembly and a shell assembly, the anvil assembly movable relative to the shell assembly; andan elongate channel configured to receive a surgical object therethrough, the elongate channel including a proximal opening and a distal opening, the elongate channel extending at least a length of the elongate body portion, the proximal opening disposed proximal of the shell assembly, the distal opening disposed on the shell assembly.3. The surgical stapling instrument of claim 2 , wherein the proximal opening of the elongate channel is distal of a proximal-most end of the handle assembly.4. The surgical stapling instrument of claim 2 , wherein the proximal opening of the elongate channel is adjacent a proximal portion of the elongate body portion.5. The surgical stapling instrument of claim 2 , wherein the distal opening is displaced from an axial center of the shell assembly.6. The surgical stapling instrument of claim 5 , wherein the distal opening of the elongate channel is displaced in a range from about 0.20 inches to about 0.30 inches from the axial center of the shell assembly.7. The surgical stapling instrument of claim 2 , wherein the distal ...