ХИРУРГИЧЕСКИЙ СШИВАЮЩИЙ ИНСТРУМЕНТ (ВАРИАНТЫ)

Группа изобретений относится к медицинской технике, а именно к хирургическим рассекающим и сшивающим скобками инструментам с электропитанием и используемым в них кассетам со скобками, которые выполнены с возможностью разрезания и сшивания ткани скобками. Хирургический сшивающий инструмент содержит концевой эффектор, двигатель и систему управления. Концевой эффектор содержит множество устанавливаемых скобок и пусковой элемент. Двигатель выполнен с возможностью приведения в действие пускового элемента. Двигатель содержит первичный комплект катушек и вторичный комплект катушек. Система управления находится в соединении посредством сигналов с двигателем. Система управления содержит аккумулятор, схему широтно-импульсной модуляции и переключатель. Схема широтно-импульсной модуляции выполнена с возможностью управлять продолжительностью импульсов тока, подаваемых от аккумулятора на двигатель. Переключатель выполнен с возможностью переключать электрический двигатель между множеством рабочих состояний ...

СИСТЕМЫ ОБНАРУЖЕНИЯ КОНЦЕВОГО ЭФФЕКТОРА ДЛЯ ХИРУРГИЧЕСКИХ ИНСТРУМЕНТОВ

Изобретение относится к медицинской технике, а именно к системе обнаружения концевого эффектора для хирургических инструментов. Хирургическая инструментальная система для сшивания ткани содержит хирургический инструмент и первый концевой эффектор. Хирургический инструмент включает пусковой элемент, двигатель и аккумулятор. Двигатель выполнен с возможностью приведения в движение пускового элемента. Аккумулятор выполнен с возможностью подавать электропитание на двигатель. Первый концевой эффектор выполнен с возможностью прикрепления к хирургическому инструменту. Первый концевой эффектор содержит первый набор сохраненных данных первого набора параметров концевого эффектора, имеющих отношение к первому концевому эффектору. Хирургический инструмент выполнен с возможностью определять первый набор сохраненных данных и вводить рабочее состояние после того, как определен первый набор сохраненных данных. Рабочее состояние содержит ограничение мощности, подаваемой аккумулятором на двигатель, до первой ...

УСТРОЙСТВО ОБРАБОТКИ КОЖИ НА ОСНОВЕ СВЕТА

Группа изобретений относится к медицинской технике, а именно к устройству и способу импульсной лазерной обработки кожи, и предназначена для лазерно-индуцированного оптического разрушения ткани волос или кожи. Устройство имеет выходное окно света, подлежащее размещению напротив поверхности, подлежащей обработке, такой как кожа, во время использования. Система обратной связи используется для определения состояния контакта между выходным окном света и упомянутой поверхностью. Для этой цели, система обратной связи выполнена с возможностью детектировать сигнал обратной связи, отражающий состояние контакта. Если сигнал обратной связи или состояние контакта таковы, что риск повреждения поверхности кожи или устройства при работе устройства является слишком большим, то пользователь или устройство имеет средство для прерывания обработки или для уменьшения светового выхода для уменьшения или устранения этого риска. 2 н. и 9 з.п. ф-лы, 6 ил.

КОНТРОЛЬНАЯ СХЕМА ХИРУРГИЧЕСКОГО УСТРОЙСТВА С ПЕРЕКЛЮЧАТЕЛЕМ И СПОСОБ ОПРЕДЕЛЕНИЯ СОСТОЯНИЯ ПЕРЕКЛЮЧАТЕЛЯ

... 1. Схема управления хирургическим устройством, содержащая:часть первой схемы, соединенной по меньшей мере с одним переключателем, работающим в открытом и закрытом состояниях, часть первой схемы, соединенной с хирургическим генератором через пару кабелей для получения контрольного сигнала для определения по меньшей мере состояния одного переключателя.2. Схема управления по п. 1, содержащая по меньшей мере один резистор, соединенный по меньшей мере с одним переключателем, в которой состояние по меньшей мере одного переключателя определяется на основании показателя по меньшей мере одного резистора.3. Схема управления по п. 2, в которой по меньшей мере один резистор последовательно соединен по меньшей мере с одним переключателем.4. Схема управления по п. 2, в которой по меньшей мере один резистор параллельно соединен по меньшей мере с одним переключателем.5. Схема управления по п. 2, содержащая источник напряжения, соединенный по меньшей мере с одним переключателем.6. Схема управления по п.

КОНСТРУКЦИИ ДЛЯ ОБНАРУЖЕНИЯ ОШИБОК ДЛЯ УЗЛОВ ХИРУРГИЧЕСКИХ ИНСТРУМЕНТОВ

ЖИДКОСТНО-ХИРУРГИЧЕСКИЙ ИНСТРУМЕНТ С ИЗМЕНЯЕМОЙ ФОРМОЙ ФАКЕЛА

... 1. Жидкостно-хирургический инструмент (12), в частности эндоскопический инструмент, содержащийжидкостной проводник (15), который продолжается сквозь держатель (33) и к проксимальному концу (26) которого может подаваться текучая среда под давлением,форсунка (20), соединенная с дистальным концом (19) жидкостного проводника (15), для обеспечения выпуска струи (21) текучей среды, подаваемой жидкостным проводником (15) на форсунку (20) и в направлении (28) выхода,исполнительный механизм (32), оперативно соединенный с форсункой (20), для придания этой форсунке колебательных движений относительно держателя (33).2. Инструмент по п.1, отличающийся тем, что форсунка (20) расположена на дистальном конце (26) держателя (33).3. Инструмент по п.2, отличающийся тем, что исполнительный механизм (32) расположен между форсункой (20) и держателем (33).4. Инструмент по п.2, отличающийся тем, что форсунка (20) упруго поддерживается на держателе (33).5. Инструмент по любому из предшествующих пунктов, отличающийся ...

Verfahren zur Steuerung eines augenchirurgischen Lasers und Behandlungsvorrichtung

Die Erfindung betrifft ein Verfahren zur Steuerung eines augenchirurgischen Lasers (18) für die Abtrennung eines Volumenkörpers (12) aus einer Kornea, durch Steuern des Lasers (18) mittels einer Steuereinrichtung (20) derart, dass dieser gepulste Laserpulse in einer Schussabfolge in einem vordefinierten Muster in die Kornea abgibt, wobei Grenzflächen (14, 16) des abzutrennenden Volumenkörpers (12) durch das vordefinierte Muster definiert sind und die Grenzflächen (14, 16) die Erzeugung einer Vielzahl durch Photodisruption erzeugter Kavitationsblasen (40) erzeugt werden, wobei die Vielzahl von Kavitationsblasen (40) entlang zumindest einer Kavitationsblasenbahn (42, 44) erzeugt wird und die Steuereinrichtung (20) die Schussabfolge des Lasers (18) zur Erzeugung eines vorgegebene Glattheitswerts derart steuert, dass zumindest zwischen benachbarten, auf der gleichen Kavitationsblasenbahn (42, 44) liegenden Kavitationsblasen (40) ein gemeinsamer Überlappungsbereich (46) der Kavitationsblasen ...

INSTRUMENT FOR ULTRASONIC LITHOTRIPSY

Wireless active tracking fiducials

A fiducial marker to be tracked by a surgical navigation system. The fiducial marker is to be affixed to an object during a surgical procedure. The fiducial marker including a casing for attachment to the object; a light emitting component attached to the casing; a power source within the casing; a signal receiver to receive a signal from the surgical navigation system; and control logic to control the light emitting component in response to the signal from the surgical navigation system. The object to-be-tracked may include a plurality of the fiducial markers arranged in geometric pattern, and the markers may include a first active fiducial marker having a first light emitting component that emits light having a first spectral bandwidth, and a second active fiducial marker having a second light emitting component that emits light having a second spectral bandwidth different from the first spectral bandwidth.

Microwave amplification apparatus for an electrosurgical instrument

A microwave amplification apparatus 300 for an electrosurgical instrument, apparatus 300 comprising: a cable assembly 306 whose proximal end is connected a launch portion 302 that includes a DC source 316 and a microwave source 314 to respectively launch a DC signal and a microwave signal 310 along the cable assembly 306; and connected to a distal end of the cable assembly 306, a distal amplification portion 304 comprising a power amplifier 320 receiving the microwave signal to be amplified, where the amplification portion 304 applies the DC signal as a drain voltage VDD across the power amplifier 320. Power amplifier 320 has an output to deliver an amplified microwave signal 318 into biological tissue via a structure 308. Preferably, amplification apparatus 300 comprises a gate voltage extraction module 332 to extract a bias voltage VGG from the DC signal to apply to a gate of the power amplifier 320. Gate-voltage extraction-module 332 may comprise a DC-DC buck converter. Gate-voltage ...

Cosmetic surgery apparatus and method

Biological tissue stimulation by optical energy.

Biological tissue of a living subject is irradiated with optical energy at a wavelength and at a power dissipation level to cause the amount of optical energy absorbed and converted to heat in the tissue to be within a range bounded by a minimum absorption rate sufficient to elevate the average temperature of the irradiated tissue to a level above the basal body temperature, but which is less than the absorption rate at which tissue converted into a collagenous substance. According to this method, a therapeutic, warming effect is produced within the irradiated tissue, but without causing tissue damage by thermal overheating. The method of using a low level reactive laser system from 100 milliwatts to 800 milliwatts in either a pulsed or continuous mode with optical energy produced by a nd:yag laser at a fundamental wavelength of 1,064 nanometers has been found to reduce pain in soft tissues, reduce inflammation and enhance the healing of tissue by stimulation of microcirculatin without ...

Biological tissue stimulation by optical energy.

Biological tissue of a living subject is irradiated with optical energy at a wavelength and at a power dissalipation level to cause the amount of optical energy absorbed and converted to heat in the tissue to be within a range bounded by a minimum absorption rate sufficient to elevate the average temperature of the irradiated tissue to a level above the basal body temperature, but which is less than the absorption rate at which tissue is converted into a collagenous substance. According to this method, a therapeutic, warming effect is produced within the irradiated tissue, but without causing tissue damage by thermal overheating. The method of using a low level reactive laser system from 100 milliwatts per square centimeter to 1000 milliwatts per square centimeter in either a pulsed or continuous mode with optical energy produced by a nd:yag laser at a fundamental wavelength of 1,064 nanometers has been found to reduce pain in soft tissues, reduce inflammation and enhance the healing of ...

Biological tissue stimulation by optical energy

DENTALLASERANORDNUNG

A dental laser arrangement switchable between different modes of operation, the arrangement including a laser device operable as a laser oscillator and as a laser amplifier. The laser device includes a laser resonator having a pump unit and an active modelocker as well as an optic loss element that introduces selective losses in the resonator. The laser arrangement further includes a laser beam-out-coupling unit. The modelocker is connected to a control circuit for switching between a CW-mode of operation for coagulating soft tissue, in which the modelocker is switched off, and two short-pulse modes of operation in which high frequency signals of equal frequencies, but different powers are applied by the control circuit to the modelocker so as to generate laser pulses of a pre-determined duration. One of the two short-pulse modes of operation is provided for ablation of hard tooth tissue, and the other short-pulse mode of operation, in which the laser radiation has a lower peak power in ...

HEIZEINRICHTUNG ZUM ERWÄRMEN EINER HAUTOBERFLÄCHE BZW. TEILBEREICHE EINES MENSCHLICHEN KÖRPERS

DEVICE FOR THE ANALYSIS OF THE DEGREE OF THE FABRIC DAMAGE IN A HEART THE INSUFFICIENT ARTERIAL ONE BLUTSTRÖMUNG SUSPENDED.

INTERMITTENT CATCH OF THE CORONAR SINE WITH PRINTING PRESSURE.

EQUIPMENT FOR THE TREATMENT OF NEUROVEGETATIVE DISTURBANCES.

THERAPEUTIC ULTRASONIC SYSTEM

LASER DEVICE FOR THE PREVENTION OF THE ACCUMULATION OF BLOOD PANELS

DEVICE FOR THE TREATMENT OF TURBIDITY AND/OR HARDENING AN UNOPENED EYE

SELECTIVE PHOTOTHERMOLYSE OF THE SKIN

Electrosurgical connection unit

An electrosurgical connection unit for a surgical robot arm to connect an electrosurgical instrument attached to the arm to an electrosurgical generator.The electrosurgical connection unit includes an input port connectable to the electrosurgical generator, the input port configured to receive a driving electrosurgical signal and output one or more activation signals; an output port connectable to the electrosurgical instrument, the output port configured to output the driving electrosurgical signal received on the input port;one or more activation switch units, wherein activation of an activation switch unit causes an activation signal to be output from the input port indicating a driving electrosurgical signal with a desired waveform is to be activated; and a control unit configured to selectively activate one of the one or more activation switch units in response to a control signal.

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).

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.

SYSTEM FOR SPATIALLY ADJUSTABLE EXCITATION OF LEADLESS MINIATURE MARKER

Shockwave catheter system with energy control

A system that breaks calcium in a liquid includes a catheter including first and second electrodes arranged to receive there-across a high electrical voltage at an initial low current. The high electrical voltage causes an electrical arc to form across the electrodes creating a gas bubble within the liquid, a high current to flow through the electrodes, and a mechanical shock wave. A power source provides the electrodes with the high electrical voltage at the initial current and terminates the high electrical voltage in response to the high current flow through the electrodes.

System and method for controlling an ultrasonic tool

Systems (10) and methods (12) of controlling an ultrasonic surgical tool (20) with a console (22) are provided. A first drive signal (40) is applied to the ultrasonic surgical tool (20). A characteristic of a harmonic signal (44) resulting from application of the first drive signal (40) to the ultrasonic surgical tool (20) is acquired. A cancellation signal (70) is generated based on the characteristic of the harmonic signal (44). The first drive signal (40) and the cancellation signal (70) are combined to produce a second drive signal (80) that is sinusoidal. The second drive signal (80) is applied to the ultrasonic surgical tool (20) such that presence of the harmonic signal (44) resulting from application of the second drive signal (80) is reduced relative to presence of the harmonic signal (44) resulting from application of the first drive signal (40).

Microsurgical system having isolated handpiece detection

MICROWAVE AMPLIFICATION APPARATUS FOR AN ELECTROSURGICAL INSTRUMENT

Various embodiments provide a microwave amplification apparatus for an electrosurgical instrument. The microwave amplification apparatus comprises: a cable assembly; a proximal launch portion, and a distal amplification portion. The proximal launch portion is connected to a proximal end of the cable assembly, and the proximal launch portion comprises: a DC source configured to launch a DC signal along the cable assembly, and a microwave source configured to launch a microwave signal along the cable assembly. The distal amplification portion is connected to a distal end of the cable assembly, and the distal amplification portion comprises: a power amplifier configured to receive the microwave signal as an input signal to be amplified. The distal amplification portion is configured to apply the DC signal as a drain voltage across the power amplifier. Also, the power amplifier has an output that is connectable to deliver an amplified microwave signal to a structure that is configured to deliver ...

USE OF LASERS TO BREAK DOWN OBJECTS FOR REMOVAL FROM WITHIN THE BODY

Use of Laser to Break Down Objects For Removal From Within The Body Calculi, stones, calcified tissue and other material are broken down for removal from within a body using laser pulses that are delivered via an optical fiber and have a wavelength, intensity, energy per pulse and pulse duration selected to break down the object into smaller particles without delivering energy sufficient to cause damage to other tissue.

METHOD AND APPARATUS FOR MEDICAL TREATMENT OF THE PATHOLOGICAL STATE OF BONES

Method and apparatus for medical treatment of pseudoarthrosis, delayed consolidation, bone deformations, correction of the length of long tubular bones, performing arthrodesis, acceleration of the normal bone knit, treatment of bone tumours, aseptic necrosis, delay of bone growth a.o. in which, after anesthesis, the limb of the patient is fixed to the carrying carriage of the apparatus. After centering of the pathological place, it is subjected once, consecutively and extracorporally to the action of impact waves, and this is followed by subsequent immobilization for a longer period.

TREATMENT OF DERMAL GLANDS BY THE APPLICATION OF NON-THERMAL ENERGY

Described herein are methods and apparatuses for reducing or eliminating skin glands (e.g., sebaceous, eccrine and apocrine) with an electric treatment. Also described herein are methods for treating and/or preventing a disorder of a skin gland. For example, described herein are methods of treating sebaceous hyperplasia.

MEDICAL LASER PROBE WITH FEEDBACK MONITOR

ELECTRICAL SURGICAL INSTRUMENT

A surgical instrument includes a surgical end effector having a receiving portion for removably receiving therein an interchangeable part. The receiving portion has a communication connection. A handle connected to the end effector actuates the end effector. The handle has a controller electrically connected to the communication connection for authenticating the interchangeable part when placed at the end effector. An interchangeable part is removably connected to the receiving portion and has an encryption device electrically removably connected to the communication connection when placed at the receiving portion. The encryption device authenticates the interchangeable part when queried by the electric controller.

OPTIMIZATION AND FEEDBACK CONTROL OF HIFU POWER DEPOSITION THROUGH THE ANALYSIS OF DETECTED SIGNAL CHARACTERISTICS

A system and method for adjusting or selecting the treatment parameters for HIFU signals to treat a target treatment site, and/or to aid in visualizing the likely degree and location of HIFU effects on patient tissue. The system transmits one or more test signals into patient tissue and receives signals created in response to the test signals. The signals are analyzed to determine a response curve of how a characteristic of the signal varies with the one or more test signals. The response curve of the detected signals is used to select a treatment parameter.

SHOCKWAVE CATHETER SYSTEM WITH ENERGY CONTROL

A system that breaks calcium in a liquid includes a catheter including first and second electrodes arranged to receive there-across a high electrical voltage at an initial low current. The high electrical voltage causes an electrical arc to form across the electrodes creating a gas bubble within the liquid, a high current to flow through the electrodes, and a mechanical shock wave. A power source provides the electrodes with the high electrical voltage at the initial current and terminates the high electrical voltage in response to the high current flow through the electrodes.

ELECTROPHYSIOLOGICAL ENDOCARDIOLOGY TOOL

Apparatus and methods for pacing the heart. The apparatus may include, and the methods may involve, an elongated member having: a delivery lumen that is configured to traverse the heart wall, the lumen having a proximal opening for receiving the instrument and a distal opening for deploying the instrument; and an electrically conductive member that is configured to deliver to the heart wall a current that modifies a contraction frequency. The apparatus may include an access opening closure device that has: a distal end that is configured to be disposed interior the heart and contact endocardial tissue adjacent the access opening; and a proximal end that is configured to be disposed exterior the heart and contact heart tissue adjacent the access opening; and an electrode that is configured to discharge electrical energy into the heart wall to change the frequency. The apparatus may include an injectable needle pacing electrode.

ULTRARAPID EXTRACORPOREAL ULTRASOUND HYPERTHERMIA DEVICE

DE DILVUGATION Appareil d'hyperthermie ultrasonore extracorporelle, caractérisé en ce qu'il est agencé pour permettre l'émission focalisée de trains d'ondes ultrasonores de fréquence comprise entre 0,5 et 10 MHz avec des puissances de crête comprises entre 10 Kw et quelques centaines de watts, les paramètres qui définissent la concentration globale du faisceau dans la tache focale et la puissance étant déterminés pour que, quelle que soit la profondeur et la nature des tissus, le temps de traitement soit de l'ordre de celui qui permet une destruction notable, de préférence la destruction totale de la cible pendant la partie linéaire de la courbe d'élévation de la température de celle-ci en fonction du temps.

ULTRASONIC RECANALIZATION SYSTEM AND TRANSDUCER THEREFOR

Ultrasonic recanalization system and transducer therefor An ultrasonic system for the recanalization of body vessels includes an ultrasonic transducer adapted for insitu insertion into body vessels, an ultrasonic power generator as well as a highly insulated electrical cable for conveying electrical power generated by said generator towards said transducer located in-situ into a body vessel. The ultrasonic transducer is adapted for coupling to a catheter for guiding at the site of the occlusion in the vessel. Echoes from the occlusion are monitored, thereby permitting localisation of the transducer in the body vessel. (Figure 2).

TISSUE HEATING AND ABLATION SYSTEM

Systems and methods employ an energy emitting electrode (34) to heat tissue. The systems and methods derive a temperature prediction for a future time period. The systems and methods control the application of energy to the energy emitting electrode (34) based, at least in part, upon the temperature prediction.

SYSTEMS AND METHODS FOR ABLATING BODY TISSUE USING PREDICTED MAXIMUM TISSUE TEMPERATURE

This invention is systems and methods that ablate body tissue using an electrode (16) for contacting tissue at a tissue electrode interface to transmit ablation energy at a determinable power level. The systems and methods include an element (50) to remove heat from the electrode (16) at a determinable rate. The systems and methods employ a processing element (98) to derive a prediction of the maximum tissue temperature condition occurring beneath the tissue electrode interface. The processing element (98) controls the power level of ablation energy transmitted by the electrode (16), or the rate at which the electrode (16) is cooled, or both, based, at least in part, upon the maximum tissue temperature prediction.

OPHTHALMIC MICROSURGICAL SYSTEM EMPLOYING FLASH EEPROM AND REPROGRAMMABLE MODULES

This invention is a system for controlling a plurality of ophthalmic microsurgical instruments connected thereto. The microsurgical instruments a re for use by a user such as a surgeon in performing ophthalmic surgical procedures. The system includes a data communications bus (101), and a user interface connected to the data communications bus. The user interface provides information to the user and receives information from the user whic h is representative of operating parameters of the microsurgical instruments. The system also includes surgical modules (13) connected to and controlling the microsurgical instruments as a function of at least one of the operating parameters. The surgical modules are also connected to the data communicatio ns bus.

MODES/SURGICAL FUNCTIONS

This invention is a system for controlling a plurality of ophthalmic microsurgical instruments connected thereto. The microsurgical instruments a re for use by a user such as a surgeon in performing ophthalmic surgical procedures. The system includes a data communications bus and a user interfa ce (3) connected to the data communications bus. The user interface (3) provide s information to the user and receives information from the user which is representative of microsurgical instruments. The system also includes surgic al modules (13) connected to, and controlling the microsurgical instruments as a function of at least one of the operating parameters. The surgical modules (13) are also connected to the data communications bus. The data communications bus provides communication of data representative of operatin g parameters between the user interface (3) and the surgical modules (13). ...

SURGICAL MODULE WITH NEURON CHIP COMMUNICATION

This invention is a system for controlling a plurality of ophthalmic microsurgical instruments connected thereto. The microsurgical instruments are for use by a user such as a surgeon in performing ophthalmic surgical procedures. The system includes a data communication bus and a user interface (3) connected to the data communication bus. The user interface (3) provides information to the user and receives information from the user which is representative of microsurgical instruments. The system also includes surgical modules (13) connected to and controlling the microsurgical instruments as a function of at least one of the operating parameters. The surgical modules (13) are also connected to the data communication bus. The data communication bus provides communication of data representative of operating parameters between the user interface and the surgical modules.

NUMERIC KEYPAD SIMULATED ON TOUCHSCREEN

This invention is a system for controlling a plural- ity of ophthalmic microsurgical instruments connected thereto. The microsurgical instruments are for use by a user such as a surgeon in performing ophthalmic surgi- cal procedures. The system includes a data communica- tions bus and a user interface (3) connected to the data communications bus. The user interface (3) provides information to the user and receives information from the user which is representative of operating parame- ters of the microsurgical instruments. The system also includes surgical modules (13) connected to and con- trolling the microsurgical instruments as a function of at least one of the operating parameters. The surgical modules (13) are also connected to the data commu- nications bus. The data communications bus provides communication of data representative of the operating parameters between the user interface and the surgical modules.

Vorrichtung zur therapeutischen, insbesondere analgetischen Behandlung des menschlichen oder tierischen Körpers

EQUIPMENT FOR DESTROYING MATERIAL.

MECHANISM FOR THE TREATMENT OF ILLNESSES OF THE WAENDE OF KOERPEROEFFNUNGEN AND/OR BODY CAVITIES.

METHOD OF SELECTIVE PHOTOTHERMOLYSIS

PROCEDE ET APPAREIL DE BROYAGE D'OBJETS A RETIRER DE L'INTERIEUR D'UN CORPS

L'INVENTION CONCERNE UN PROCEDE ET UN APPAREIL DE BROYAGE D'OBJETS PLACES A L'INTERIEUR D'UN CORPS. ELLE SE RAPPORTE A UN APPAREIL DANS LEQUEL UN FAISCEAU LASER PULSE EST CREE PAR UN LASER, PAR EXEMPLE A COLORANT 22, ET EST GUIDE PAR UNE FIBRE OPTIQUE 12 JUSQU'A UN CALCUL URINAIRE OU BILIAIRE OU AUTRES 10. LES IMPULSIONS DU LASER ONT UNE LONGUEUR D'ONDE, UNE INTENSITE, UNE ENERGIE PAR IMPULSIONS ET UNE DUREE D'IMPULSIONS CHOISIES DE MANIERE QUE L'OBJET SOIT FRAGMENTE SANS QUE LES TISSUS ENVIRONNANTS SOIENT DETERIORES. APPLICATION A L'EXTRACTION DES CALCULS SANS OPERATION CHIRURGICALE.

HYDRAULIC ASSEMBLY FOR COLLECTING OF ANIMAL SKINS OR NOT PULSED MEDIUM AND HIGH PRESSURE

La présente demande concerne un ensemble hydraulique (100) de générateur de jets pulsés ou non pulsés de moyenne et haute pression comportant un conduit hydraulique (101) comportant une zone déformable souple (103) admettant un état de repos et un état obturé, et un boitier (102) configuré pour maintenir le conduit hydraulique (101) et comportant une première pince (110) et une deuxième pince (111) maintenant le conduit hydraulique (101) de part et d'autre de la zone déformable souple (103), et un espace (112) ouvert, défini entre la première pince (110) et la deuxième pince (111).

INFRARED RADIATION APPARATUS

INSTRUMENT FOR ULTRASONIC LITHOTRIPSIE

a surgical cutting motor driven

APPARATUS ADAPTED FOR USE BREAK FOR REMOVING MATERIAL WITHIN A BODY AND BURSTING PROCESS MATERIAL

surgical instrument fixing and cutting

instrumento de fluido cirúrgico

A PULSED LASER SYSTEM FOR THE SURGICAL REMOVAL OF TISSUE

Removal of body tissue with a long pulsed lasers is achieved such that sufficient energy to remove tissue is transmitted to the desired body without damaging an optical fiber transmitting the laser radiation. Pairs of pulses having the same or different wavelengths are coupled to more effectively remove tissue from the surgical site.

ULTRASOUND CATHETER SYSTEM

An ultrasonic system operable at high drive frequencies and/or in pulsed operation is disclosed. The system may be used in a procedure to treat an occluded blood vessel. The system can be used to transmit ultrasonic energy from an ultrasonic transducer to a distal end of an ultrasonic transmission device. The ultrasonic device may operate at a resonant frequency. The resonant frequency can be determined prior to using the device and/or during use. The ultrasonic device may operate in a range of frequencies at or near resonance. Operational parameters including, for example, reflected vibrations, temperature, and/or user input can be used by the system to adjust the driving waveform.

Periodic pulsed heat technique for inducing analgesic effects

A technique for inducing analgesic effects to relieve pain in a living organism whose central nervous system is associated with thermal receptors in the skin that sense heat and transmit signals through afferent fibers reflecting the intensity of the heat and its duration to the brain via the spinal cord. Applied to an area of the skin for a predetermined period is an air stream whose temperature is periodically elevated to create high-temperature pulses separated by lower temperature intervals whereby as a result of heat transfer from the skin area to tissue underlying the skin, the temperature at the surface of the skin is at a tolerable level. The signals transmitted to the brain during this period that reflect the sensed high temperature pulses stimulate the brain into producing endorphins having analgesic effects on the organism and relieving pain.

Apparatus and method for dynamic cooling of biological tissues for thermal mediated surgery

Dynamically cooling the epidermis of a port wine stain patient undergoing laser therapy permits maximization of the thermal damage to the port wine stain while at the same time minimizing nonspecific injury to the normal overlying epidermis. A cryogenic spurt is applied to the skin surface for a predetermined short period of time in the order of tens of milliseconds so that the cooling remains localized in epidermis while leaving the temperature of deeper port wine stain vessels substantially unchanged. The result is that epidermal denaturation and necrosis which normally occurs in uncooled laser irradiated skin sites does not occur and that clinically significant blanching of the port wine stains at the dynamically cooled sites establishes that selective laser photothermolysis of the port wine stain blood vessels is achieved. In addition, dynamic epidermal cooling reduces patient discomfort normally associated with flashlamp-pumped pulsed dye laser therapy.

Angioplasty catheter and method for use thereof

The disclosure relates to a device for use in removing undesired material from a duct within a patient's body. The device comprises a catheter adapted to be disposed within a duct and an element disposed adjacent to the distal end portion of the catheter such as a fiber optic emitting laser energy, a heated element or a knife for intersecting and releasing the undesired material. The undesired material may be an occlusion or an accumulation of plaque within a blood vessel. An inflatable bladder is provided for positioning the distal end portion of the catheter adjacent the inner surface of the duct to maintain the element for intersecting and releasing the undesired material adjacent thereto. The device can also include a pair of abutments disposed adjacent the distal end portion of the catheter to form a chamber adjacent the inner surface of the blood vessel and prevent the escape of laser energy after it has been applied to the undesired material.

Ultrasonic therapeutic system

In a preferred embodiment, the invention provides a plurality of spaced ultrasonic piezoelectric transducers, which may be so fixed to and around an afflicted area of a patient as to enable their sequential or interlaced excitation, whereby the afflicted area of the patient can be excited from different aspects, so that ultrasonic energy is not permitted to enter the body from any single point on a continuous-wave basis. Each transducer delivers its ultrasonic energy via a body of material having a wave impedance that substantially matches the wave impedance of human soft tissue, thereby avoiding or minimizing the annoyance of a mismatched entry into the patient's body. The net result is for the patient to derive the therapeutic benefits of a moving applicator, without any physical displacement of one with respect to any other of the plural spaced transducers. Various embodiments and an illustrative plurality of different excitation sequences are described.

Apparatus and method for delivering laser radiation to a substrate

PCT No. PCT/GB94/00976 Sec. 371 Date Oct. 12, 1995 Sec. 102(e) Date Oct. 12, 1995 PCT Filed May 6, 1994 PCT Pub. No. WO94/26203 PCT Pub. Date Nov. 24, 1994The invention provides an apparatus and method for delivering laser radiation to a substrate (20,120) involving a laser radiation source (1), delivery means (2) to transmit the laser radiation from the source, a delivery head (3) to direct the laser radiation from the delivery means onto the substrate. The delivery head has isolation means to isolate a selected target area from its surroundings by substantially preventing escape of laser radiation, and viewing means are provided to enable an operator to view the selected target area. The apparatus is specifically for application in curing restorative or prophylactic tooth coatings, such as vitreous dental compositions or sol gels.

Method and apparatus for facilitating the healing of bone fractures

A method and apparatus are disclosed for treating bone fractures by the application of intermittent pneumatic compression. The period of compression is sufficient to induce venous stasis at the fracture site. The period of recovery can be about half the period of compression. The applied pressure can be 50% or less of the baseline pressure.

Liquid ejection control device, liquid ejection system, and control method

In a liquid ejection control device, an ejection tube section type acquisition unit discriminates an ejection tube section type of an ejection tube section mounted in a main body section, and acquires a fitted correspondence relationship fitting the discriminated ejection tube section type. A voltage amplitude setting unit sets a voltage amplitude of a drive voltage waveform so as to cause kinetic energy to meet an energy instruction value input by using an energy dial based on a rising index value related to rising of the drive voltage waveform and a repetitive frequency instruction value input by using a repetitive frequency dial with reference to the fitted correspondence relationship.

Intrapericardial assist method

A surgical method for assisting cardiac function utilizes a balloon initially in a collapsed configuration. The balloon is inserted into an intrapericardial space about a patient's heart and is disposed about one portion of the patient's heart. The method further includes inflating the balloon in the intrapericardial space to compress one portion of the patient's heart. A lower end portion of the patient's heart is separately compressed by an additional instrumentality to reduce ventricular volume.

FLUID EJECTION DEVICE AND METHOD TO CONTROL FLUID EJECTION DEVICE

A fluid ejection device includes a pulsating flow generation section adapted to eject a fluid in a pulsed manner; a fluid supply section adapted to supply the pulsating flow generation section with the fluid; a fluid supply tube having flexibility adapted to communicate the pulsating flow generation section and the fluid supply section with each other; and a drive control section adapted to perform drive control of the pulsating flow generation section and the fluid supply section, wherein the drive control section starts up the pulsating flow generation section, makes the fluid supply section supply the fluid at a first flow rate for a predetermined time period, and then makes the fluid supply section supply the fluid at a second flow rate lower than the first flow rate after the predetermined time period elapses. 14-. (canceled)5. A fluid ejection device comprising:a pulsating flow generation section configured to eject a fluid in a pulsed manner from a nozzle;a fluid supply section configured to supply the fluid to the pulsating flow generation section;a fluid supply tube having flexibility configured to communicate with the pulsating flow generation section and the fluid supply section; anda drive control section configured to control the pulsating flow generation section and the fluid supply section,wherein the pulsating flow generation section has an entrance channel which communicates with the fluid supply tube and an exit channel which communicates with the nozzle,wherein an inertance of the entrance channel is larger than an inertance of the exit channel,wherein the drive control section starts up the pulsating flow generation section, makes the fluid supply section supply the fluid to the pulsating flow generation section at a first flow rate for a predetermined time period,and then makes the fluid supply section supply the fluid to the pulsating flow generation section at a second flow rate lower than the first flow rate after the predetermined time ...

SYSTEMS, DEVICES, AND METHODS FOR DELIVERY OF PULSED ELECTRIC FIELD ABLATIVE ENERGY TO ENDOCARDIAL TISSUE

Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy, and an endocardial ablation device includes at least one electrode for ablation pulse delivery to tissue. The signal generator may deliver voltage pulses to the ablation device in the form of a pulse waveform. The system may include a cardiac stimulator for generation of pacing signals and for sequenced delivery of pulse waveforms in synchrony with the pacing signal.

Motor-driven surgical cutting instrument

In various embodiments, a surgical stapler is disclosed. The stapler comprises a handle, a shaft, and a surgical end effector extending from the shaft. The stapler further comprises a firing member configured to move through a plurality of positions during a firing stroke, an electric motor configured to drive the firing member during the firing stroke, and a control system for controlling the electric motor. The control system comprises a battery and a pulse frequency modulation circuit configured to control the frequency of pulses supplied from the battery to the electric motor, wherein the pulse frequency modulation circuit is configured to optimize the speed applied to the firing member.

Aspiration thrombectomy system and methods for thrombus removal with aspiration catheter

A clot removal system comprises a catheter, a vacuum source, and a controller. The catheter comprises a proximal end, a distal end, and controller operating parameters and defines a lumen configured to be filled with a liquid column having a proximal portion. The vacuum source is configured to supply vacuum. The controller is configured to carry out a control pattern of turning on and off the vacuum based upon the controller operating parameters and is configured to receive the controller operating parameters in an automatic response to the catheter being operatively connected to at least one of the vacuum source and the controller and, responsive to the connection, to carry out the control pattern to change a level of vacuum at the distal end of the catheter.

Method and apparatus for irradiating ultrasound into tissue

Verfahren zum Ansteuern eines Einstrahlungsmittels für die Einstrahlung von Ultraschall in ein Gewebe (16) mit einer vorgegebenen thermischen Wirkung (T) und einer vorgegebenen mechanischen Wirkung (M) in dem Gewebe (16), wobei nacheinander Ultraschallpulse (P) mit einer jeweiligen Pulsbreite (T1) eingestrahlt werden, und wobei ein Tastverhältnis (T1/T2) der Ultraschallpulse (P) in Abhängigkeit von der thermischen und der mechanischen Wirkung (T, M) des Ultraschalls eingestellt wird.

Method of configuring a surgical instrument having a surgical tissue-compressing device

A method of configuring a surgical instrument having a surgical tissue-compressing device including a pair of opposing compression surfaces with a tissue compression-measuring device. The method comprises providing a mechanical binary-output electrical switch having switching states changed by mechanical movements, mechanically coupling the switch with an adjustable biasing device retaining the switch in one of the switching states until a force at least as great as the force imposed by the biasing device is imparted to the switch, and disposing the switch such that a proportional amount of force that is placed upon compression tissue disposed between the opposing compression surfaces is placed upon the switch.

RADIATION-BASED DERMATOLOGICAL DEVICES AND METHODS

Method for making an ultrasound catheter

APPARATUS AND METHOD FOR DELIVERING LASER RADIATION TO A SUBSTRATE

The invention provides an apparatus and method for delivering laser radiation to a substrate (20, 120) involving a laser radiation source (1), delivery means (2) to transmit the laser radiation from the source, a delivery head (3) to direct the laser radiation from the delivery means onto the substrate. The delivery head has isolation means to isolate a selected target area from its surroundings by substantially preventing escape of laser radiation, and viewing means are provided to enable an operator to view the selected target area. The apparatus is specifically for application in curing restorative or prophylactic tooth coatings, such as vitreous dental compositions or sol gels.

Laser cutting apparatus

Pressure-Controlled Intermittent Coronary Sinus Occlusion

УСТРОЙСТВА ВТЯГИВАНИЯ ПУСКОВОГО ЭЛЕМЕНТА ДЛЯ ХИРУРГИЧЕСКИХ ИНСТРУМЕНТОВ С ЭЛЕКТРОПИТАНИЕМ

Группа изобретений относится к медицинской технике, а именно к хирургическим рассекающим и сшивающим скобками инструментам. Хирургический инструмент содержит узел пускового элемента, приводной блок, узел втягивания, средство блокировки и корпус. Узел пускового элемента включает в себя участок, закрепленный для селективного осевого перемещения в дистальном направлении и проксимальном направлении. Приводной блок содержит двигатель и узел зубчатой передачи. Двигатель включает в себя вал двигателя. Узел зубчатой передачи связан приводным образом с валом двигателя и включает в себя узел выходного вала, выполненный с возможностью взаимодействия с узлом пускового элемента так, что при повороте вала двигателя в первом направлении вращения участок узла пускового элемента приводится в движение по оси в дистальном направлении, а при повороте вала двигателя во втором направлении вращения участок узла пускового элемента приводится в движение по оси в проксимальном направлении. Узел втягивания взаимодействует ...

ХИРУРГИЧЕСКИЙ РЕЖУЩИЙ ИНСТРУМЕНТ С ПРИВОДОМ ОТ ЭЛЕКТРОДВИГАТЕЛЯ

Изобретение относится к медицине. Хирургический режущий и скрепляющий инструмент с приводом от электродвигателя содержит концевой эффектор, вал, соединенный с концевым эффектором, и рукоятку, соединенную с валом. Концевой эффектор содержит режущий инструмент, который, при приведении в действие, продольно перемещается по концевому эффектору для разрезания ткани. Рукоятка содержит электродвигатель для приведения в действие режущего инструмента и схему управления электродвигателем. Схема управления содержит источник питания и схему регулировки тока. Схема регулировки тока может изменять крутящий момент на выходном валу. Электродвигатель имеет, по меньшей мере, первый рабочий режим с низкой мощностью для первого участка цикла разрезного хода режущего инструмента и второй рабочий режим с высокой мощностью для второго участка цикла разрезного хода режущего инструмента. 2 н. и 19 з.п. ф-лы, 25 ил.

СИСТЕМА ДЛЯ ВОЗДЕЙСТВИЯ НА КОЖУ

... 1. Способ работы импульсной лампы (2) в системе (1) для воздействия на кожу, причем способ содержит этапы, на которых устанавливают проводящий путь между импульсной лампой (2) и заряженным конденсатором (4) и вызывают разрядку конденсатора через импульсную лампу, причем упомянутый разряд достигает максимальной плотности тока в первый момент времени (t) и имеет естественное время погасания (t), и при этом способ дополнительно содержит этап, на котором прерывают упомянутый проводящий путь с тем, чтобы отсекать ток через лампу в момент времени (t; t) позже упомянутого первого момента времени (t), но раньше естественного времени погасания (t).2. Способ по п. 1, причем упомянутый проводящий путь прерывают, когда плотность тока падает ниже предварительно определенного порогового уровня плотности тока (Ix).3. Способ по п. 2, дополнительно содержащий этапы, на которых определяют спектр генерируемого света как функцию плотности тока, определяют, при какой плотности тока спектр генерируемого света ...

УСТРОЙСТВО ОБРАБОТКИ КОЖИ НА ОСНОВЕ СВЕТА

ТЕМПЕРАТУРНО-РЕГУЛИРУЕМАЯ АБЛЯЦИЯ МАЛОЙ ПРОДОЛЖИТЕЛЬНОСТИ С РЕЗИСТИВНЫМ НАГРЕВОМ

СПОСОБ И УСТРОЙСТВО ДЛЯ ПОДАЧИ УЛЬТРАЗВУКА В ТКАНЬ

... 1. Способ управления средствами (2) подачи, предназначенными для подачи в ткань (16) ультразвука, имеющего заданное тепловое воздействие (Т) и заданное механическое воздействие (М) на ткань (16), посредством ультразвуковых импульсов (Р), каждый из которых имеет длительность (Т1) и которые вводят последовательно, при этом коэффициент (Т1/Т2) заполнения ультразвуковых импульсов (Р) задают в виде функции теплового и механического воздействия (Т, М) ультразвука. 2. Способ по п.1, отличающийся тем, что он включает следующие этапы: a) задание параметра (Рпик) механического воздействия для механического воздействия; b) задание параметра (Рэфф) теплового воздействия для теплового воздействия; c) определение коэффициента (Т1/Т2) заполнения в виде функции параметра (Рэфф) теплового воздействия и параметра (Рпик) механического воздействия; и d) включение и выключение указанных средств подачи для подачи ультразвуковых импульсов в соответствии с определенным коэффициентом (Т1/T2) заполнения. 3. Способ ...

Method and device for removing dental tissue

Published without abstract.

Vorrichtung zur therapeutischen, insbesondere analgetischen Behandlung des menschlichen oder tierischen Koerpers gleichzeitig mit Waerme und einem elektrischen Gleichspannungsfeld oder niederfrequenten Wechselfeld

Use of lasers to break down objects

Calculi, stones, calcified tissue and other material are broken down for removal from within a body using laser pulses that are delivered via an optical fiber and have a wavelength, intensity, energy per pulse and pulse duration selected to break down the object into smaller particles without delivering energy sufficient to cause damage to other tissue.

Ultrasonic therapeutic system

MORE UNIVERSALLY APPLIKATOR FOR THE HEAT THERAPY

SYSTEM FOR THE CONTROL OF FABRIC ABLATION WITH TEMPERATURE SENSORS

DENTALLASERANORDNUNG

PROCEDURE AND EQUIPMENT FOR THE SIMPLIFICATION OF THE FRACTURE HEALING

DENTALLASERANORDNUNG

PROCEDURE FOR THE FAST CHANGING HEATING AND/OR COOLING

Fluid jet surgical cutting tool

A device, apparatus, and method of adipose tissue treatment

System and Method for Detecting and Suppressing Arc Formation During an Electrosurgical Procedure

A method for suppressing arc formation during an electrosurgical tissue treatment procedure includes the steps of supplying pulsed current from an energy source to tissue and measuring the pulsed current supplied from the energy source. The method also includes the steps of comparing an instantaneous measured pulse to a predetermined threshold and controlling the pulsed current supplied from the energy source based on the comparison between the instantaneous measured pulse and the predetermined threshold.

Radiation-Based Dermatological Devices and Methods

A self-contained, hand-held device for providing radiation-based dermatological treatments includes a device body configured to be handheld by a user; a laser device supported in the device body, the laser device including a laser beam source configured to emit laser radiation; an application end configured to be manually moved across the surface of the skin during a treatment session; and electronics configured to control the laser beam source to emit laser radiation toward the skin to provide a dermatological treatment; wherein the device includes no optics downstream of the laser source.

Combination Laser Treatment of Skin Conditions

A method and apparatus for treatment of health and skin conditions through the use of a combination of laser systems or a laser system capable of delivering different pulse durations. The laser system being capable of producing both Q-switched short pulsed laser energy and millisecond long pulsed laser energies. Multiple skin conditions would be susceptible to this treatment, including acne, skin aging and textural changes, pigmentary changes, scarring, rosacea, striae, redness and hair removal.

Devices and Methods for Radiation-Based Dermatological Treatments

A hand-held device for providing laser-based dermatological treatments includes a laser beam source supported in a device body, an automated scanning system, and control electronics. The automated scanning system is configured to receive an input beam generated by the laser beam source and scan the input beam to provide a series of output beams for delivery to the skin via an application end of the device to form a pattern of treatment spots on the skin. The application end is configured for movement across the skin during a treatment session. The control electronics control the laser beam source and/or the automated scanning system to deliver the scanned output beams to the skin at a radiation intensity sufficient to provide an effective dermatological treatment, and wherein the scanned output beams delivered from the application end of the device meet the Class 1M or better eye safety classification per the IEC 60825-1.

Devices and Methods for Radiation-Based Dermatological Treatments

A hand-held device for providing a dermatological treatment by scanning a laser beam to form a pattern of treatment spots on the skin includes a laser source that generates an input beam, an automated scanning system, and a treatment spot control system. The automated scanning system includes a rotating multi-sector scanning element configured to repeatedly scan the input beam, each scan providing an array of output beams corresponding to the multiple sectors of the scanning element and forming a scanned row of treatment spots on the skin. The scanning element is configured such that each sector provides a constant-angular-direction output beam as that sector rotates through the input beam. The treatment spots of each scanned row are spaced apart from each other by areas of non-irradiated skin. The treatment spot control system provides a distance between adjacent rows of treatment spots in a direction of manual movement of the device.

Cardiac Electrosurgery

Devices and methods are disclosed for providing access to the pericardial cavity while reducing risk of myocardial damage. The methods include maintaining the positions of a puncture device and of a portion of a parietal pericardium relative to one other while delivering energy from the puncture device to create a channel through the pericardium. Additional embodiments disclosed include delivering a pulse or pulses of energy to the parietal pericardium and attempting to advance the puncture device through the parietal pericardium between deliveries of energy pulses.

Electrophysiological endocardiology tool

Apparatus and methods for pacing the heart. The apparatus may include, and the methods may involve, an elongated member having: a delivery lumen that is configured to traverse the heart wall, the lumen having a proximal opening for receiving the instrument and a distal opening for deploying the instrument; and an electrically conductive member that is configured to deliver to the heart wall a current that modifies a contraction frequency. The apparatus may include an access opening closure device that has: a distal end that is configured to be disposed interior the heart and contact endocardial tissue adjacent the access opening; and a proximal end that is configured to be disposed exterior the heart and contact heart tissue adjacent the access opening; and an electrode that is configured to discharge electrical energy into the heart wall to change the frequency. The apparatus may include an injectable needle pacing electrode.

Methods and Apparatus for Ablating Lung Nodules with Vapor

Devices and systems are described for lung nodules with heated condensable vapor. The device can have an elongated shaft coupled to a vapor generator. High temperature vapor can be directed through the shaft into the lung to treat the lung nodule. In some embodiments, the device comprises a needle configured to deliver the vapor to the lung nodules. An expandable member, such as a balloon, can be provided on a distal portion of the shaft to prevent proximal flow of the high temperature vapor upon discharge from the device. Methods of use are also provided.

Circuit to generate high frequency signals

Method and apparatus for electrosurgery including tissue coagulation using very high voltage pulses of electrical energy applied to the electrosurgical probe. This minimizes heating of the surrounding tissue in the probe and is especially suitable for precise and limited coagulation and fulguration without excessive tissue charring or other damage. The power at rated load of the applied pulses to the probe is typically over 300 W and the duration of the on time is very short, so each group of pulse bursts is of relatively low duty cycle. An RF generator is also provided for delivering electrical energy to an electrosurgical probe with the proper characteristics, including fast switching times.

Radiation-Based Dermatological Devices and Methods

A self-contained, hand-held device for providing a dermatological treatment may include a device body configured to be handheld by a user, a radiation source including a beam source configured to generate an energy beam, an application end configured to be manually moved across the surface of the skin, a sensor configured to generate signals based on an interaction with the skin, and electronics configured to automatically identify a series of intrinsic skin features based on the sensor signals, and control at least one operational parameter of the radiation source based at least on the identification of such skin features.

Device, apparatus, and method of adipose tissue treatment

An improved procedure for performing liposuction is obtained by utilizing a needle that includes a laser source conductor with one end of the needle being configured for insertion into a target adipose skin volume and the other end being coupled to a laser source. The needle may include one or more channels for extracting the treated adipose area. A vacuum source can be used in the extraction of the treated adipose. Further, the first end of the needle may include a cap or end-piece that reduces the build up of carbon deposits. A temperature sensor may be used as input to adjust the laser power and prevent over exposure.

Methods for promoting wound healing

A method for promoting wound healing at a wound site includes subjecting the wound site to electrical pulses to promote wound healing during at least one of the stages of wound healing. The method may further include closing the wound site by sutures or staples prior to and or after applying the electrical pulses that promote wound healing.

PULSE GENERATOR

An electrosurgical instrument for use with an electrosurgical generator. The electrosurgical instrument incorporates a signal modificator having an input end electrically connected to the electrosurgical generator and an output end electrically connected to one or more electrodes of the electrosurgical instrument, where the signal modificator modifies a continuous signal from the electrosurgical generator into a pulsing signal to the one or more electrodes of the electrosurgical instrument. The signal modificator comprises a circuit for providing the pulsing signal. 1. An electrosurgical instrument for use with an electrosurgical generator , wherein the electrosurgical instrument incorporates a signal modificator having an input end electrically or connectable to the electrosurgical generator and an output end electrically connected to one or more electrodes of the electrosurgical instrument , where the signal modificator is adapted to modify a continuous signal from the electrosurgical generator into a pulsing signal to the one or more electrodes of the electrosurgical instrument and comprises a circuit for providing the pulsing signal.2. The electrosurgical instrument according to claim 1 , wherein the signal modificator is incorporated inside a part of a housing or a casing of the electrosurgical instrument claim 1 , preferably inside a handle or part of a handle of the electrosurgical instrument.3. The electrosurgical instrument according to claim 2 , wherein the circuit comprises a timer IC such as a 555 Timer IC claim 2 , a Schmitt trigger claim 2 , a Blocking oscillator claim 2 , or an Armstrong oscillator.4. The electrosurgical instrument according to claim 2 , wherein the circuit is adapted for controlling switching means to electrically connect/disconnect the one or more electrodes to/from the electrosurgical generator.5. The electrosurgical instrument according to claim 1 , wherein the signal modificator is detachably secured to the electrosurgical ...

Tamper proof circuit for surgical instrument battery pack

A surgical instrument includes a shaft, an end effector extending distally from the shaft, and a housing extending proximally from the shaft. The housing includes a motor configured to generate at least one motion to effectuate the end effector, and a power source configured to supply power to the surgical instrument, wherein the power source includes a casing, a data storage unit, and a deactivation mechanism configured to interrupt access to data stored in the data storage unit. In addition, the power source includes a battery pack and a deactivation mechanism configured to deactivate the battery pack if the casing is breached.

Electrosurgical Pericaridial Puncture

Devices and methods for providing access to the pericardial cavity while reducing risk of myocardial damage. One method includes using an apparatus to apply pressure to a parietal pericardium, retracting the apparatus, and puncturing the parietal pericardium by delivering electrical energy using a puncture device. Another method includes moving a portion of parietal pericardium away from a surface of myocardium of the heart and puncturing the parietal pericardium by delivering electrical energy using a puncture device. The methods may include a step of confirming that the puncture device is at least partially within the parietal cavity by injecting or aspirating fluid through a lumen in the puncture device or measuring the pressure or electrical impedance at the distal end of the puncture device. 121.-. (canceled)22. A method of accessing a pericardial cavity of a heart comprising:a. using an apparatus to apply pressure to a parietal pericardium;b. retracting the apparatus; andc. puncturing the parietal pericardium by delivering electrical energy using a puncture device.23. The method of claim 22 , further comprising the step of advancing the puncture device through the apparatus.24. The method of claim 22 , further comprising a step of confirming that the puncture device is at least partially within the pericardial cavity.25. The method of claim 24 , wherein the step of confirming that the puncture device is at least partially within the pericardial cavity comprises injecting a contrast fluid into the pericardial cavity through a lumen of the puncture device.26. The method of claim 24 , wherein the step of confirming that the puncture device is at least partially within the pericardial cavity comprises aspirating fluid from the pericardial cavity through a lumen of the puncture device.27. The method of claim 24 , wherein the step of confirming that the puncture device is at least partially within the pericardial cavity comprises measuring electrical impedance at a ...

Liquid Ejection Device and Surgical Apparatus

A liquid ejection device that suppresses scatter of the living tissue, such as cells excised, fragmentated, or otherwise separated by ejected pulsed flow is provided. 1. A liquid ejection device that ejects a first liquid in a form of pulses through a liquid ejection opening of an ejection tube ,the liquid ejection device comprising a second liquid supply unit that supplies a second liquid through a supply tube to a region in a vicinity of the liquid ejection opening.2. The liquid ejection device according to claim 1 , a liquid suction opening provided in a vicinity of the liquid ejection opening; and', 'a suction unit that is connected to the liquid suction opening via a suction tube and sucks the first liquid and the second liquid., 'wherein the liquid ejection device comprises3. The liquid ejection device according to claim 2 ,wherein the ejection tube is inserted through the supply tube.4. The liquid ejection device according to claim 1 ,wherein the ejection tube is inserted through the suction tube.5. The liquid ejection device according to claim 1 , a liquid chamber that changes a volume thereof to produce pulsed flow of the first liquid;', 'a volume varying unit that changes an amount of change in the volume of the liquid chamber; and', 'a controller that controls a supply quantity of the second liquid supplied from the second liquid supply unit on a basis of the amount of change in the volume of the liquid chamber., 'wherein the liquid ejection device comprises6. The liquid ejection device according to claim 5 ,wherein, when the volume varying unit increases the amount of change in the volume of the liquid chamber, the controller increases the quantity of the second liquid supplied from the second liquid supply unit.7. The liquid ejection device according to claim 5 ,wherein, when the volume varying unit reduces the amount of change in the volume of the liquid chamber, the controller reduces the quantity of the second liquid supplied from the second liquid ...

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.

METHODS AND SYSTEMS FOR PULSED ILLUMINATION

Methods and systems for performing an ophthalmic surgical procedure include pulsed illumination of target tissue. The systems may include an illumination instrument arranged to illuminate tissue at a surgical site during the ophthalmic surgical procedure. A light source provides illumination to the illumination instrument for emission from the illumination instrument toward the surgical site. A controller communicates with the light source and activates the light source to provide illumination pulses at a frequency above the flickering perception in humans and with enough light for cameral exposure and human light perception. The light source pulses to minimize phototoxicity. 1. A vitreoretinal surgical system for performing an ocular treatment procedure , comprising:an illumination instrument sized and structurally configured to illuminate tissue at a surgical site during an ocular treatment procedure;a light source arranged to provide illumination to the illumination instrument for emission from the illumination instrument toward the surgical site; anda controller in communication with the light source and configured to activate the light source in a manner providing illumination pulses at a frequency above a flickering perception in humans and at an illumination level sufficient to allow a user to perform the ocular treatment procedure.2. The vitreoretinal surgical system of claim 1 , further comprising a microscope disposed and arranged to provide visualization of illuminated tissue at the surgical site to the user.3. The vitreoretinal surgical system of claim 1 , further comprising:a console including the light source; andan optical fiber extending from the console to the illumination instrument and connecting the light source and the illumination instrument.4. The vitreoretinal surgical system of claim 3 , further comprising a surgical instrument arranged to manipulate tissue at the surgical site claim 3 , the surgical instrument being attached to and powered ...

Ultrasound Catheter and Methods for Making and Using Same

Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, ultrasound catheters include an elongate flexible catheter body with one or more lumens, an ultrasound transmission member extending longitudinally through the catheter body lumen and, in some embodiments, a guidewire tube extending through the lumen. A distal head for disrupting occlusions is coupled with the distal end of the ultrasound transmission member and is positioned adjacent the distal end of the catheter body. Some embodiments include improved features such as a bend in the catheter body for enhancing positioning and/or advancement of the catheter.

MOTOR-DRIVEN SURGICAL CUTTING INSTRUMENT

A motor-driven surgical cutting and fastening instrument that comprises an end effector, an electric motor, and a motor control circuit. The motor control circuit is for monitoring a parameter of the electric motor that is indicative of movement of a moveable member of the end effector, and for adjustably controlling the electric motor based on the monitored parameter to thereby adjustably control movement of the moveable member of the end effector during forward rotation of the electric motor. 1. A surgical instrument for cutting and stapling tissue , wherein the surgical instrument comprises: an electric motor; and', a battery operably coupleable to said electric motor, said battery configured to supply pulses to said electric motor; and', 'a pulse width modulation circuit operably coupleable to said battery, said pulse width modulation circuit configured to control the duration of pulses supplied from said battery to said electric motor;, 'a control system for controlling said electric motor, said control system comprising], 'a handle comprisinga shaft extending from said handle; and a plurality of staples for stapling tissue; and', 'a cutting element for cutting tissue, said cutting element configured to move at least partially through said end effector during a firing stroke, said electric motor configured to drive said cutting element with an applied power during the firing stroke, wherein the applied power applied to said cutting element is optimized by said pulse width modulation circuit., 'an end effector extending from said shaft, said end effector comprising2. The surgical instrument of claim 1 , wherein said cutting element is configured to move between a plurality of positions during the firing stroke claim 1 , the plurality of positions comprising:an initial range of positions;a pre-reversing range of positions; anda pre-stopping range of positions;wherein said pulse width modulation circuit reduces the duration of pulses during at least one of the ...

METHODS AND APPARATUS FOR SELECTIVE TISSUE ABLATION

Catheter systems and methods for the selective and rapid application of DC voltage to drive irreversible electroporation are disclosed herein. In some embodiments, an apparatus includes a voltage pulse generator and an electrode controller. The voltage pulse generator is configured to produce a pulsed voltage waveform. The electrode controller is configured to be operably coupled to the voltage pulse generator and a medical device including a series of electrodes. The electrode controller includes a selection module and a pulse delivery module. The selection module is configured to select a subset of electrodes from the series of electrodes. The selection module is configured identify at least one electrode as an anode and at least one electrode as a cathode. The pulse delivery module is configured to deliver an output signal associated with the pulsed voltage waveform to the subset of electrodes. 120-. (canceled)21. A method , comprising:identifying, via a selection module of an electrode controller, a plurality of anode/cathode pairs from a plurality of electrodes of a multi-electrode catheter, the multi-electrode catheter configured to be disposed about a portion of a heart, at least one anode/cathode pair including at least one anode electrode and at least one cathode electrode;conveying a pacing signal to a pacing lead configured to be operatively coupled to the heart;receiving, at a feedback module of the electrode controller, an electrocardiograph signal associated with a function of the heart; anddelivering, via a pulse delivery module of the electrode controller, a pulsed voltage waveform to the plurality of anode/cathode pairs according to a sequential pattern, the pulsed voltage waveform including a pre-polarizing pulse followed by a polarizing pulse, the pre-polarizing pulse being generated by utilizing voltage spikes generated from switching on a discharge of a capacitor bank.22. The method of claim 21 , wherein the identifying is based on an input ...

METHODS AND APPARATUS FOR MULTI-CATHETER TISSUE ABLATION

Catheter systems, tools and methods are disclosed for the selective and rapid application of DC voltage to drive irreversible electroporation, with the system controller configurable to apply voltages to an independently selected subsets of electrodes, such that voltages of one polarity are applied to a multiplicity of electrodes on a first medical device and voltages of the opposite polarity to a multiplicity of electrodes on a second medical device. The first and second medical devices can be epicardial catheters positioned such that their opposing distal tips are approximately aligned and whose segments with electrodes collectively wrap around the pulmonary veins. 116-. (canceled)17. A method , comprising:identifying, via a selection module of an electrode controller, a plurality of anode/cathode pairs, each anode selected in the plurality of anode/cathode pairs being only in a first plurality of electrodes of a first multi-electrode catheter, each cathode selected in the plurality of anode/cathode pairs being only in a second plurality of electrodes of a second multi-electrode catheter, the first multi-electrode catheter and the second multi-electrode catheter configured to collectively surround a portion of a heart;conveying a pacing signal to a pacing lead configured to be operatively coupled to the heart;delivering, via a pulse delivery module of the electrode controller, a first output signal having a first polarity to each anode selected; anddelivering, via the pulse delivery module, a second output signal having a second polarity opposite the first polarity to each cathode selected, the first output signal and the second output signal being delivered according to a sequential pattern.18. The method of claim 17 , wherein the identifying is based on an input received from an input/output module of the electrode controller.19. The method of claim 17 , further comprising:computing an impedance between at least one anode electrode in the first plurality of ...

METHOD FOR CONTROLLING AN EYE SURGICAL LASER AND TREATMENT DEVICE

The invention relates to a method for controlling an eye surgical laser for the separation of a volume body with a predefined posterior interface and a predefined anterior interface from a cornea, comprising controlling the laser by means of a control device such that it emits pulsed laser pulses in a shot sequence in a predefined pattern into the cornea, wherein the interfaces of the volume body to be separated are defined by the predefined pattern and the interfaces are generated by means of an interaction of the individual laser pulses with the cornea by the generation of a plurality of cavitation bubbles generated by photodisruption, wherein the predefined pattern is generated by means of a mesh-like guidance of the emitted laser pulses and the control device controls the shot sequence of the laser such that a common overlap area of the cavitation bubbles is generated between adjacent cavitation bubbles. Further, the invention relates to a treatment device, to a computer program as well as to a computer-readable medium. 1. A method for controlling an eye surgical laser for the separation of a volume body with a predefined posterior interface and a predefined anterior interface from a human or animal cornea , comprising:controlling the laser by means of a control device such that it emits pulsed laser pulses in a shot sequence in a predefined pattern into the cornea, wherein the predefined posterior and anterior interfaces of the volume body to be separated are defined by the predefined pattern and the predefined posterior and anterior interfaces are generated by means of an interaction of the individual laser pulses with the cornea by the generation of a plurality of cavitation bubbles generated by photodisruption, wherein the predefined pattern is generated by means of a mesh-like guidance of the emitted laser pulses and the control device controls the shot sequence of the laser such that a common overlap area of the cavitation bubbles is generated between ...

METHOD FOR CONTROLLING AN EYE SURGICAL LASER AND TREATMENT DEVICE

The invention relates to a method for controlling an eye surgical laser for the separation of a volume body from a cornea by controlling the laser by means of a control device such that it emits pulsed laser pulses in a shot sequence in a predefined pattern into the cornea, wherein interfaces of the volume body to be separated are defined by the predefined pattern and the interfaces are generated by the generation of a plurality of cavitation bubbles generated by photodisruption, wherein the plurality of cavitation bubbles is generated along at least one cavitation bubble path and the control device controls the shot sequence of the laser for generating a preset smoothness value such that a common overlap area of the cavitation bubbles is generated at least between adjacent cavitation bubbles located on the same cavitation bubble path depending on a geometry of the respective cavitation bubble. Further, the invention relates to a treatment device, to a computer program as well as to a computer-readable medium. 1. A method for controlling an eye surgical laser for the separation of a volume body with a predefined posterior interface and a predefined anterior interface from a human or animal cornea , comprising:controlling the laser by means of a control device such that it emits pulsed laser pulses in a shot sequence in a predefined pattern into the cornea, wherein the predefined posterior and anterior interfaces of the volume body to be separated are defined by the pre-defined pattern and the predefined posterior and anterior interfaces are generated by means of an interaction of the individual laser pulses with the cornea by the generation of a plurality of cavitation bubbles generated by photodisruption, wherein the plurality of cavitation bubbles is generated along at least one cavitation bubble path and the control device controls the shot sequence of the laser for generating a preset smoothness value such that a common overlap area of the cavitation bubbles is ...

Firing member retraction devices for powered surgical instruments

A surgical instrument that includes a motor-powered drive unit that drives a portion of a firing member assembly in an axial direction to actuate a surgical end effector coupled to the instrument. The instrument may further include a retraction system configured to interact with the firing member assembly to permit a clinician to manually retract the portion of the firing member assembly should it become jammed or inadvertently stopped during a firing process. The surgical instrument includes a locking arrangement that interfaces with the retraction system and the motor-powered drive unit to prevent the transfer of the retraction forces generated by the retraction system to the motor shaft without physically separating portions of the motorized drive unit.

Secondary battery arrangements for powered surgical instruments

A power system, for powering a surgical instrument including an end effector and a motor configured to generate at least one motion to effectuate the end effector, includes a primary power source configured to supply a first power to operate the surgical instrument, wherein the primary power source is detachable from the surgical instrument, a secondary power source configured to supply a second power to operate the surgical instrument when the primary power source is detached from the surgical instrument, wherein the secondary power source is rechargeable, and wherein the primary power source is configured to charge the secondary power system, and a power management circuit configured to selectively transmit the first power from the primary power source and the secondary power from the secondary power source to operate the surgical instrument.

Electrosurgical generator

An electrosurgical generator ( 1 ) comprises a source of radio frequency (R.F.) energy, at least a pair of output terminals for connection to a bipolar electrosurgical instrument ( 3 ) and a pulsing circuit for the source. The generator ( 1 ) delivers to the electrosurgical instrument ( 3 ) an amplitude-modulated RE power signal in the form of a succession of pulses. The electrosurgical generator ( 1 ) has a blended mode comprising a rapidly alternating sequence of a first cutting mode and a second coagulation mode. The first cutting mode comprises pulses ( 11 ) having a predetermined voltage amplitude and a first pulse width, and the second coagulation mode comprises pulses ( 13 ) having a similar voltage amplitude but a second smaller pulse width.

Electrosurgical Pericardial Puncture

Devices and methods for providing access to the pericardial cavity while reducing risk of myocardial damage. One method includes advancing a distal end of a puncture device towards the heart from a subxiphoid region of a patient wherein the distal end of the puncture device is atraumatic and comprises an energy delivery device; positioning the energy delivery device at a target site on a pericardium of the heart using ultrasound for imaging; and delivering energy from the energy delivery device to a tissue of the target site to create a channel to the pericardial cavity. The method may include repeating one or more of the above steps until the energy delivery device is located within the pericardial cavity. Some embodiments of the method include using supplemental means of monitoring, including medical imaging and using contrast fluid.

Tamper proof circuit for surgical instrument battery pack

A surgical instrument includes a shaft, an end effector extending distally from the shaft, and a housing extending proximally from the shaft. The housing includes a motor configured to generate at least one motion to effectuate the end effector, and a power source configured to supply power to the surgical instrument, wherein the power source includes a casing, a data storage unit, and a deactivation mechanism configured to interrupt access to data stored in the data storage unit. In addition, the power source includes a battery pack and a deactivation mechanism configured to deactivate the battery pack if the casing is breached.

Tissue Removal Devices, Systems and Methods

A tissue removal device includes a hollow needle, an ultrasonic transducer for mechanically vibrating the needle, an aspiration line communicating with the needle, and a vacuum pulsing device for generating vacuum pulses in the needle. The device may be utilized for breaking up tissue by phacoemulsification, vacuum pulsing, or both. 1. A tissue removal device for removal of tissue from an eye during surgery , comprising:a hollow needle comprising an open distal tip;an aspiration line communicating with the needle and configured for communicating with a vacuum source, wherein the needle and the aspiration line define an aspiration path from the distal tip to the vacuum source;a vacuum device configured for controlling a vacuum at the distal tip; anda restrictor at the distal tip of the hollow needle, the restrictor having an inner diameter smaller than an inner diameter of the hollow needle removed from the distal tip.2. The device of claim 1 , wherein the vacuum device comprises a vacuum pulsing device configured to provide vacuum pulses at an open end of the distal tip.3. The device of claim 2 , wherein the vacuum pulsing device comprises an actuator and a movable member claim 2 , wherein the actuator is configured for moving the movable member alternately between a closed position that obstructs the aspiration path and an open position.4. The tissue removal device of claim 3 , wherein the actuator is pneumatically driven claim 3 , mechanically driven claim 3 , electrically driven claim 3 , electromechanically driven claim 3 , magnetically driven claim 3 , or electromagnetically driven claim 3 , and at least one of a vacuum pulse duration claim 3 , a vacuum level claim 3 , and a vacuum pulse frequency is set by the operator control.5. The tissue removal device of claim 3 , wherein the actuator is configured for communicating with a valve control device such that the movable member is movable between the open position and the closed position to induce the vacuum ...

Tamper proof circuit for surgical instrument battery pack

A surgical instrument includes a shaft, an end effector extending distally from the shaft, and a housing extending proximally from the shaft. The housing includes a motor configured to generate at least one motion to effectuate the end effector, and a power source configured to supply power to the surgical instrument, wherein the power source includes a casing, a data storage unit, and a deactivation mechanism configured to interrupt access to data stored in the data storage unit. In addition, the power source includes a battery pack and a deactivation mechanism configured to deactivate the battery pack if the casing is breached.

Method for treating and/or preventing neurodegenerative diseases by using low-intensity pulsed ultrasound (LIPUS)

This present invention discloses a method for treating and/or preventing neurodegenerative diseases by applying low-intensity pulsed ultrasound (LIPUS) stimulation. In addition, this present invention discloses the LIPUS increases neurotrophic factor protein expression, improves cognitive dysfunction and reduces brain damage in neurotoxicity.

METHODS FOR CATHETER-BASED RENAL NEUROMODULATION

Methods and apparatus are provided for monopolar neuromodulation, e.g., via a pulsed electric field. Such monopolar neuromodulation may effectuate irreversible electroporation or electrofusion, necrosis and/or inducement of apoptosis, alteration of gene expression, action potential attenuation or blockade, changes in cytokine up-regulation and other conditions in target neural fibers. In some embodiments, monopolar neuromodulation is applied to neural fibers that contribute to renal function. In some embodiments, such monopolar neuromodulation is performed bilaterally. 125-. (canceled)26. A method for catheter-based renal neuromodulation , the method comprising:intravascularly positioning a catheter in a reduced profile delivery configuration within a renal artery of a human patient and adjacent to renal nerves that innervate a kidney of the patient;transforming an expandable electrode at a distal region of the catheter from the reduced profile delivery configuration to a treatment configuration,wherein the expandable electrode comprises a helical configuration, and wherein, in the treatment configuration, the expandable electrode is sized and shaped such that the helical electrode contacts an inner wall of the renal artery of the patient; anddelivering an electric field between the expandable electrode and a ground pad coupled to an exterior of the patient, thereby thermally inhibiting neural communication along the renal nerves,wherein delivering the electric field and thermally inhibiting neural communication along the renal nerves results in a therapeutically beneficial reduction in blood pressure of the patient.27. The method of wherein the helical member comprises a self-expanding material.28. The method of wherein the helical member comprises nitinol.29. The method of wherein the catheter further comprises an expandable element proximal of the expandable electrode claim 26 , and wherein the method further comprises expanding the expandable element into ...

Methods and apparatus for selective tissue ablation

Catheter systems and methods for the selective and rapid application of DC voltage to drive irreversible electroporation are disclosed herein. In some embodiments, an apparatus includes a voltage pulse generator and an electrode controller. The voltage pulse generator is configured to produce a pulsed voltage waveform. The electrode controller is configured to be operably coupled to the voltage pulse generator and a medical device including a series of electrodes. The electrode controller includes a selection module and a pulse delivery module. The selection module is configured to select a subset of electrodes from the series of electrodes. The selection module is configured identify at least one electrode as an anode and at least one electrode as a cathode. The pulse delivery module is configured to deliver an output signal associated with the pulsed voltage waveform to the subset of electrodes.

Electrically enhanced retrieval of material from vessel lumens

Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the thrombectomy system. The system can include a catheter having a distal portion configured to be positioned adjacent to a thrombus in a blood vessel, an electrode disposed at the distal portion of the catheter, and an interventional element configured to be delivered through a lumen of the catheter. The electrode and the interventional element are each configured to be electrically coupled to an extracorporeal power supply.

Laser therapy apparatus

A laser therapy apparatus having a diode-based continuous emission laser source, a diode-based pulsed emission laser source, and a terminal handpiece. The laser therapy apparatus further includes a bundle of optic fibers for coupling between individual diodes of the diode-based pulsed emission laser source, which is interfaced with a single optic fiber which terminates in the handpiece.

CATHETER SENSING AND IRRIGATING

Ablation systems of the present disclosure facilitate the safe formation of wide and deep lesions. For example, ablation systems of the present disclosure can allow for the flow of irrigation fluid and blood through an expandable ablation electrode, resulting in efficient and effective cooling of the ablation electrode as the ablation electrode delivers energy at a treatment site of the patient. Additionally, or alternatively, ablation systems of the present disclosure can include a deformable ablation electrode and a plurality of sensors that, in cooperation, sense the deformation of the ablation electrode, to provide a robust indication of the extent and direction of contact between the ablation electrode and tissue at a treatment site. 123-. (canceled)24. A catheter , comprising:an elongated shaft having a proximal end region and a distal end region;an irrigation element at the distal end region of the elongated shaft and positioned to direct irrigation fluid away from the distal end region of the elongated shaft; andan electrical energy delivery electrode at the distal end region of the elongated shaft and enveloping the irrigation element, the electrical energy delivery electrode comprises multiple struts that define a plurality of bounded cells,', 'the struts are configured to conduct and deliver electrical energy along a majority of their length,', 'the struts are movable relative to one another, and', 'at least a portion of the struts are in electrical communication with one another to form a single electrical conductor., 'wherein—'}25. The catheter of wherein the electrical energy delivery electrode comprises a braid.26. The catheter of wherein the electrical energy delivery electrode comprises a mesh.27. The catheter of wherein the struts are coupled to one another at joints.28. The catheter of wherein the struts are moveable relative to one another such that a radial dimension of the electrical energy delivery electrode increases as the struts move ...

Reflective power monitoring for microwave applications

A system and method for supplying microwave energy to tissue for microwave therapy includes an electrosurgical generator having an output for coupling to a surgical instrument. The electrosurgical generator includes a microwave energy source and a controller for controlling the operation of the electrosurgical generator. The surgical instrument, coupled to the electrosurgical generator, includes a microwave antenna for delivering microwave energy from the microwave energy source. The controller of the electrosurgical generator is operable for causing the electrosurgical generator to apply at least two pulses of microwave energy.

SYSTEMS AND METHODS FOR LASER PULSE ENERGY CONTROL

A laser pulse energy control system which includes a laser source and a beam divider positioned to receive a calibration laser pulse produced by the laser source. The beam divider reflects a first portion of the calibration laser pulse along a first optical path toward a first plane and transmits a second portion of the calibration laser pulse along a second optical path toward a second plane. An energy meter determines an energy of the first portion of the calibration laser pulse at the first plane and a fluence profiler determines a fluence profile of the second portion of the calibration laser pulse at the second plane. The processor controls an energy of an ablation laser pulse produced by the laser source based on the fluence profile of the second portion of the calibration laser pulse and the energy of the first portion of the calibration laser pulse. 1. A laser pulse energy control system comprising:a laser source;a beam divider positioned to receive a calibration laser pulse produced by the laser source, the beam divider configured to reflect a first portion of the calibration laser pulse along a first optical path toward a first plane, and transmit a second portion of the calibration laser pulse along a second optical path toward a second plane;an energy meter configured to determine an energy of the first portion of the calibration laser pulse at the first plane;a fluence profiler configured to determine a fluence profile of the second portion of the calibration laser pulse at the second plane; anda processor configured to control an energy of an ablation laser pulse produced by the laser source based on the fluence profile of the second portion of the calibration laser pulse and the energy of the first portion of the calibration laser pulse.2. The system of claim 1 , wherein the processor is further configured to control the energy of the ablation laser pulse by:determining a target energy based on the fluence profile of the second portion of the ...

Liquid ejection control apparatus, liquid ejection system, and control method

A liquid ejection control apparatus, which controls a drive voltage waveform applied to a piezoelectric element so as to control ejection of a pulsed liquid jet, includes a first operation unit that receives input of an index value for setting a flow velocity peak timing of a main jet of the pulsed liquid jet, and a control unit that sets a rising portion of the drive voltage waveform according to the index value so as to control changing of the drive voltage waveform.

Operator-Controlled Scanning Laser Procedure Designed for Large-Area Epithelium Removal

Systems and methods for removing an epithelial layer disposed over a stromal layer in a cornea irradiate a region of the epithelial layer with a pulsed beam of ablative radiation. The ablative radiation is scanned to vary the location of the beam within the region in accordance with a pulse sequence. The pulse sequence is arranged to enhance optical feedback based on a tissue fluorescence of the epithelial layer. The penetration of the epithelial layer is detected in response to the optical feedback. The use of scanning with the pulse sequence arranged to enhance optical feedback allows large areas of the epithelium to be ablated such penetration of the epithelial layer can be detected.

END EFFECTOR DETENTION SYSTEMS FOR SURGICAL INSTRUMENTS

A surgical instrument system can comprise a surgical instrument, a first end effector, and a second end effector, wherein the end effectors are attachable to the surgical instrument. The first end effector can comprise a first set of stored data pertaining to the first end effector, wherein the surgical instrument is configured to ascertain the first set of data and enter a first operating state. The second end effector can comprise a second set of stored data pertaining to the second end effector, wherein the surgical instrument is configured to ascertain the second set of data and enter a second operating state. The surgical instrument is further configured to enter a default operating state if said surgical instrument is unable to ascertain a set of stored data from an end effector. 1. A surgical instrument system , comprising:a surgical instrument;a first end effector attachable to said surgical instrument, wherein said first end effector comprises a first set of stored data regarding a first set of end effector parameters pertaining to said first end effector, and wherein said surgical instrument is configured to ascertain said first set of data and enter a first operating state after ascertaining said first set of stored data; anda second end effector attachable to said surgical instrument, wherein said second end effector comprises a second set of stored data regarding a second set of end effector parameters pertaining to said second end effector, wherein said surgical instrument is configured to ascertain said second set of data and enter a second operating state after ascertaining said second set of stored data, and wherein said surgical instrument is configured to enter a default operating mode if said surgical instrument is unable to ascertain a set of stored data from an end effector.2. The surgical instrument system of claim 1 , wherein said first end effector comprises a first wireless transmitter configured to transmit a first signal incorporating ...

CONTROLLED TISSUE COMPRESSION SYSTEMS AND METHODS

A surgical instrument is provided including an end effector configured to clamp, staple or cut tissue, a motor configured to drive the end effector and a control system. The control system is configured to receive information about at least one tissue property and select a tissue management mode based on the at least one tissue property. The control system controls the motor based on the selected tissue management mode. 1. A method of operating a powered surgical instrument , the method comprising:activating a motor of a surgical instrument, thereby clamping tissue with an end effector of the surgical instrument;determining at least one tissue property of the clamped tissue; andselecting a tissue management mode from a plurality of tissue management modes based on the determined at least one tissue property of the clamped tissue, the plurality of tissue management modes including a constant torque profile, a modulated torque profile, and a maximum torque profile, wherein the end effector is configured to apply a discrete strain on the clamped tissue in each of the plurality of tissue management modes.2. The method according to claim 1 , further comprising activating the motor of the surgical instrument to apply the discrete strain on the clamped tissue by the end effector.3. The method according to claim 2 , wherein in the constant torque profile tissue management mode claim 2 , the motor is configured to generate a constant torque.4. The method according to claim 2 , wherein in the modulated torque profile tissue management mode claim 2 , the motor is configured to receive a periodic signal.5. The method according to claim 2 , wherein in the maximum torque profile tissue management mode claim 2 , the motor is configured to cause the end effector to clamp the tissue at a faster rate than in the constant and modulated torque profile tissue management modes.6. The method according to claim 2 , further comprising firing the surgical instrument to apply staples to the ...

Systems, devices, and methods for delivery of pulsed electric field ablative energy to endocardial tissue

Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy, and an endocardial ablation device includes at least one electrode for ablation pulse delivery to tissue. The signal generator may deliver voltage pulses to the ablation device in the form of a pulse waveform. The system may include a cardiac stimulator for generation of pacing signals and for sequenced delivery of pulse waveforms in synchrony with the pacing signal.

Treatment instrument and high-voltage connectors for robotic surgical system

Described herein are methods and systems for using the treatment tip apparatuses and high-voltage connectors with robotic surgical systems. For example, retractable treatment tip apparatuses (e.g., devices, systems, etc.) including one, or more preferably a plurality, of electrodes that are protected by a housing (which may be retractable) until pressed against the tissue for deployment of the electrodes and delivery of a therapeutic treatment, are disclosed. In particular, these apparatuses may include a plurality of treatment needle electrodes and may be configured for the delivery of nanosecond pulsed electric fields. Also described herein are high-voltage connectors configured to provide high-voltage energy, such as nsPEF pulses, from a generator to the retractable treatment tip apparatuses.

Motor-driven surgical cutting instrument

A motor-driven surgical cutting and fastening instrument that comprises an end effector, an electric motor, and a motor control circuit. The motor control circuit is for monitoring a parameter of the electric motor that is indicative of movement of a moveable member of the end effector, and for adjustably controlling the electric motor based on the monitored parameter to thereby adjustably control movement of the moveable member of the end effector during forward rotation of the electric motor.

Input shaper for robotic surgical system

Input shapers for control inputs to the robotic surgical system and their method of controlling a linkage of a robot with a controller includes receiving a desired joint angle of a joint of the robot; and transmitting a first control signal to a motor to actuate the joint in response to a desired joint velocity, the desired joint velocity being a function of the desired joint angle and a current joint angle of the joint.

Methods and Apparatus for Monopolar Renal Neuromodulation

Methods and apparatus are provided for monopolar neuromodulation, e.g., via a pulsed electric field. Such monopolar neuromodulation may effectuate irreversible electroporation or electrofusion, necrosis and/or inducement of apoptosis, alteration of gene expression, action potential attenuation or blockade, changes in cytokine up-regulation and other conditions in target neural fibers. In some embodiments, monopolar neuromodulation is applied to neural fibers that contribute to renal function. In some embodiments, such monopolar neuromodulation is performed bilaterally.

LASER MODULATION FOR COAGULATION

An apparatus has a pump module providing pump energy, a resonator and a controller. The resonator includes a gain medium receiving the pump energy from the pump module and producing light; reflective surfaces reflecting light produced by the gain medium back toward the gain medium; and a variable light attenuator receiving light produced by the gain medium. The controller controls the amount of light attenuated by the variable light attenuator such that the apparatus emits windows of pulses of laser light at spaced time intervals, each window containing a plurality of pulses of laser light and each interval between windows being larger than an interval between pulses within a window. The emitted windows of pulses of laser light heat tissue to a temperature that causes coagulation without vaporization. 120-. (canceled)21. An apparatus comprising:a pump module providing pump energy; a gain medium receiving the pump energy from the pump module and producing light;', 'at least two at least partially reflective surfaces reflecting light produced by the gain medium back toward the gain medium;', 'a variable light attenuator receiving light produced by the gain medium;, 'a resonator comprisinga controller that provides a driver signal to the variable light attenuator to control the amount of light attenuated by the variable light attenuator such that the apparatus emits windows of pulses of laser light at spaced time intervals, each window containing a plurality of pulses of laser light and each interval between windows being larger than an interval between pulses within a window, the duration of the windows and the duration of the intervals between windows being such that the emitted windows of pulses of laser light heat tissue to a temperature that causes coagulation, wherein the provided driver signal is at a first magnitude during the intervals between windows, transitions to a second magnitude to cause the apparatus to emit a first pulse of laser light of a window, ...

SYSTEMS AND METHODS FOR CONTROLLING LASER PULSING

Techniques are provided for controlling an output laser pulse signal of a medical device. A control device defines a time duration of capacitive discharge to a laser device. The time duration corresponds to an intended energy of the output laser pulse signal. The control device generates a plurality of sub-pulse control signals. The sub-pulse control signals define a series of capacitive discharge events of the capacitor bank. The control device modulates one or more of a sub-pulse control signal period or a sub-pulse time duration of the sub-pulse control signals to modify the capacitive discharge of the capacitor bank to the laser device during the time duration. 1. A method for controlling an output laser pulse signal of a medical device , the method comprising:at a control device, defining a time duration of capacitive discharge of a capacitor bank to a laser device, wherein the time duration corresponds to an intended energy of the output laser pulse signal;generating a plurality of sub-pulse control signals that define a series of capacitive discharge events of the capacitor bank; andmodulating one or more of a sub-pulse control signal period or a sub-pulse time duration of the sub-pulse control signals to modify the capacitive discharge of the capacitor bank to the laser device during the time duration.2. The method of claim 1 , further comprising modifying the time duration of capacitive discharge by modifying the plurality of sub-pulse control signals.3. The method of claim 2 , wherein modifying the time duration comprises modifying the time duration between a start of a first sub-pulse control signal and an end of a last sub-pulse control signal.4. The method of claim 1 , wherein the sub-pulse control signal period corresponds to time elapsed between a start of the first sub-pulse control signal and a start of a subsequent sub-pulse control signal.5. The method of claim 1 , wherein the sub-pulse time duration corresponds to time elapsed between a start of ...

DETECTING SHORT CIRCUITS IN ELECTROSURGICAL MEDICAL DEVICES

A control circuit for use with an electrosurgical system is disclosed. The control circuit is programmed to provide an electrosurgical signal comprising a plurality of pulses to first and second electrodes and receive a first reading of an impedance between the first and second electrodes. The control circuit is programmed to receive a second reading of the impedance between the first and second electrodes. The control circuit is programmed to determine a difference between the first and second readings and determine that a short circuit is present between the first and second electrodes based on a magnitude of the difference between the first reading and the second reading. The control circuit is programmed to generate a signal indicating the short circuit between the first and second electrodes. 1. A control circuit for use with an electrosurgical system , wherein the control circuit is programmed to:provide an electrosurgical signal comprising a plurality of pulses to first and second electrodes;receive a first reading of an impedance between the first and second electrodes, wherein the first reading is taken during the provision of a pulse of the electrosurgical signal;receive a second reading of the impedance between the first and second electrodes, wherein the second reading is taken during the provision of a subsequent pulse of the electrosurgical signal;determine a difference between the first and second readings;determine that a short circuit is present between the first and second electrodes based on a magnitude of the difference between the first reading and the second reading; andgenerate a signal indicating the short circuit between the first and second electrodes.2. The control circuit of claim 1 , wherein the pulse and the subsequent pulse are adjacent pulses of the electrosurgical signal.3. The control circuit of claim 1 , wherein the control circuit is further programmed to:receive a third reading of the impedance between the first and second ...

SYSTEMS, METHODS AND DEVICES FOR PROGRESSIVELY SOFTENING MULTI-COMPOSITIONAL INTRAVASCULAR TISSUE

Various embodiments of the systems, methods and devices are provided comprising angioplasty to break up calcification or other tissue in occlusive areas within a blood vessel. The various embodiments disclosed comprise pressure pulse periods designed to break up calcified occlusive material through a cyclically stretching of the vessel walls without damaging the vessel wall tissue. 1. A system for treating a blood vessel , comprising:an inflatable balloon operatively connected to a catheter;a fluid reservoir in operative fluid communication with the inflatable balloon;a pressure controller in operative communication with the fluid reservoir and adapted to deliver fluid from the fluid reservoir with a plurality of pressure pulse periods, each pressure pulse period comprising at least one balloon inflation comprising at least one pressure magnitude, the pressure controller further adapted to provide a relaxation period between successive pressure pulse periods, each relaxation period comprising a balloon pressure that is greater than zero; anda processor in operative communication with the pressure controller, the processor comprising programmed instructions that, when executed, results in programmed execution of the plurality of pulse periods and the relaxation period between successive pulse periods.2. The system of claim 1 , wherein the programmed instructions further comprise at least one of the predetermined variables in the group consisting of: initial pressure magnitude claim 1 , maximum pressure magnitude claim 1 , final pressure magnitude claim 1 , time of pressure application claim 1 , time of relaxation period claim 1 , pressure of relaxation period claim 1 , and velocity of pressure application.3. The system of claim 1 , wherein the programmed instructions are adapted to ensure that the at least one pressure magnitude increases within each successive pressure pulse period in the plurality of pulse periods over time.4. The system of claim 1 , wherein the ...

Detecting short circuits in electrosurgical medical devices

An electrosurgical system for providing an electrosurgical signal to a patient is disclosed. The electrosurgical system includes a control circuit, wherein the control circuit is programmed to: provide the electrosurgical signal to a first electrode and a second electrode, receive a plurality of input variables, wherein the plurality of input variables are indicative of a short being either present or absent between the first electrode and the second electrode, and apply a short detection algorithm to the plurality of input variables to indicate either a short circuit or no short circuit between the first electrode and the second electrode during the provision of the electrosurgical signal. The plurality of input variables may include at least one impedance level between the first electrode and the second electrodes during the provision of the electrosurgical signal. The short detection algorithm applied may include a fuzzy logic algorithm, a neural network algorithm, or neuro-fuzzy algorithm.

TORQUE OPTIMIZATION FOR SURGICAL INSTRUMENTS

A control system having speed management control. The control system can be in signal communication with a battery, and the battery can be coupled to a motor. The speed management control can include a pulse width modulation circuit, which can control the duration of pulses supplied from the battery to the motor. The motor can include a primary set of coils and a secondary set of coils. The control system can direct surplus current to the secondary set of coils to maximize the torque generated by the motor. 1. A surgical stapler , comprising:an end effector comprising a plurality of deployable staples and a firing element;a motor configured to drive said firing element, wherein said motor comprises a primary set of coils and a secondary set of coils; and a battery;', 'a pulse width modulation circuit configured to control the duration of current pulses supplied from said battery to said motor; and', a first operating state in which the primary set of coils are configured to drive said firing element; and', 'a second operating state in which said primary set of coils and said secondary set of coils are configured to drive said firing element., 'a switch configured to switch the electric motor between a plurality of operating states, wherein the plurality of operating states comprises], 'a control system in signal communication with said motor, wherein said control system comprises2. The surgical stapler of claim 1 , wherein the battery supplies current pulses to said primary set of coils at a voltage that corresponds to the maximum torque of said primary set of coils during the first operating state.3. The surgical stapler of claim 2 , wherein a surplus current is supplied to said secondary set of coils during the second operating state.4. The surgical stapler of claim 3 , wherein said control system maximizes the surplus current supplied to said secondary set of coils during the second operating state based on the volt-ampere limit of said battery.5. The surgical ...

TORQUE OPTIMIZATION FOR SURGICAL INSTRUMENTS

A control system having speed management control. The control system can be in signal communication with a battery, and the battery can be coupled to a motor. The speed management control can include a pulse width modulation circuit, which can control the duration of pulses supplied from the battery to the motor. The motor can include a primary set of coils and a secondary set of coils. The control system can direct surplus current to the secondary set of coils to maximize the torque generated by the motor. 1. A surgical stapler , comprising:an end effector comprising a plurality of deployable staples and a firing element;a motor configured to drive said firing element, wherein said motor comprises a primary set of coils and a secondary set of coils; and a battery;', 'a pulse width modulation circuit configured to control the duration of current pulses supplied from said battery to said motor; and', a first operating state in which the primary set of coils are configured to drive said firing element; and', 'a second operating state in which said primary set of coils and said secondary set of coils are configured to drive said firing element., 'a switch configured to switch the electric motor between a plurality of operating states, wherein the plurality of operating states comprises], 'a control system in signal communication with said motor, wherein said control system comprises2. The surgical stapler of claim 1 , wherein the battery supplies current pulses to said primary set of coils at a voltage that corresponds to the maximum torque of said primary set of coils during the first operating state.3. The surgical stapler of claim 2 , wherein a surplus current is supplied to said secondary set of coils during the second operating state.4. The surgical stapler of claim 3 , wherein said control system maximizes the surplus current supplied to said secondary set of coils during the second operating state based on the volt-ampere limit of said battery.5. The surgical ...

Shroud retention arrangement for sterilizable surgical instruments

A surgical instrument comprises a shaft, an end effector extending distally from the shaft, and a housing extending proximally from the shaft. The housing comprises a first shroud portion, a second shroud portion, a working assembly nested in the first shroud portion, wherein the working assembly is detachable from the first shroud portion, wherein the second shroud portion is removably couplable to the first shroud portion to permit the working assembly to be detached from the first shroud portion, and at least one securing member movable to secure the working assembly to the first shroud portion.

Ultrasonic Diagnosis/Treatment Device and Ultrasonic Diagnosis/Treatment Method

An ultrasonic diagnosis/treatment device includes a placement surface formed of an inner surface of a sphere; a plurality of ultrasonic transducers placed on the placement surface so that a focal point of an ultrasonic wave to be emitted is located at a position that is near an outside of an outer surface of a subject and is spaced apart from the outer surface by a predetermined distance; and a control part configured to control transmission and reception of each of the ultrasonic transducers. The control part includes a diagnosis mode in which at least one ultrasonic transducer is oscillated toward a diagnosis region within a subject and a reflected wave from the diagnosis region is received by the at least one ultrasonic transducer to visualize the reflected wave, and a treatment mode in which the at least one ultrasonic transducer is oscillated toward an inside of the subject.

Systems And Methods To Modify Intravascular Lesions

A system including a console and a catheter assembly. The console may include an ultrasound-producing mechanism configured to convert an electric current into a vibrational energy. The console also may include a driving-parameter modifier configured to modify driving parameters to selectively provide one or more output modes for the vibrational energy. The catheter assembly may include a sheath including a sheath lumen and a core wire at least partially disposed within the sheath lumen. The core wire may include a proximal portion and a distal portion of the core wire, wherein the proximal portion of the core wire is coupled to the ultrasound-producing mechanism. A working length of the distal portion of the core wire beyond the sheath may be configured for longitudinal, transverse, or longitudinal and transverse displacement in accordance with the one or more output modes for the vibrational energy to effect different intravascular lesion-modification procedures. 1. A system , comprising: an ultrasound-producing mechanism configured to convert an electric current into a vibrational energy; and', 'a driving-parameter modifier configured to modify driving parameters to selectively provide one or more output modes for the vibrational energy; and, 'a console comprising a sheath comprising a sheath lumen; and', the proximal portion of the core wire is coupled to the ultrasound-producing mechanism; and', 'a working length of the distal portion of the core wire beyond the sheath is configured for longitudinal, transverse, or longitudinal and transverse displacement in accordance with the one or more output modes for the vibrational energy to effect different intravascular lesion-modification procedures., 'a core wire at least partially disposed within the sheath lumen comprising a proximal portion and a distal portion of the core wire, wherein], 'a catheter assembly comprising2. The system according to claim 1 , wherein the driving-parameter modifier is configured to ...

Methods of treating a thrombus in a vein using cyclical aspiration patterns

Vascular treatment devices and methods include a woven structure including a plurality of bulbs that may be self-expanding, a hypotube, for example including interspersed patterns of longitudinally spaced rows of kerfs, and a bonding zone between the woven structure and the hypotube. The woven structure may include patterns of radiopaque filaments measurable under x-ray. Structures may be heat treated to include various shapes at different temperatures. The woven structure may be deployable to implant in a vessel. A catheter may include a hypotube including interspersed patterns of longitudinally spaced rows of kerfs and optionally a balloon. Laser cutting systems may include fluid flow systems.

SECONDARY BATTERY ARRANGEMENTS FOR POWERED SURGICAL INSTRUMENTS

A power system, for powering a surgical instrument including an end effector and a motor configured to generate at least one motion to effectuate the end effector, includes a primary power source configured to supply a first power to operate the surgical instrument, wherein the primary power source is detachable from the surgical instrument, a secondary power source configured to supply a second power to operate the surgical instrument when the primary power source is detached from the surgical instrument, wherein the secondary power source is rechargeable, and wherein the primary power source is configured to charge the secondary power system, and a power management circuit configured to selectively transmit the first power from the primary power source and the secondary power from the secondary power source to operate the surgical instrument. 1. A surgical instrument , comprising:a shaft;an end effector extending distally from said shaft; and a motor configured to generate at least one motion to effectuate said end effector;', 'a primary power source configured to supply a first power to operate said surgical instrument, wherein said primary power source is detachable from said housing; and', 'a secondary power source configured to supply a second power to operate said surgical instrument when said primary power source is detached from said housing., 'a housing extending proximally from said shaft, said housing comprising2. The surgical instrument of claim 1 , further comprising a controller claim 1 , wherein said secondary power source is configured to supply said second power to operate said controller when said primary power source is detached from said housing.3. The surgical instrument of claim 1 , wherein said primary power source is rechargeable.4. The surgical instrument of claim 1 , wherein said secondary power source is rechargeable.5. The surgical instrument of claim 4 , wherein said primary power source is configured to recharge said secondary power ...

TORQUE OPTIMIZATION FOR SURGICAL INSTRUMENTS

A control system having speed management control. The control system can be in signal communication with a battery, and the battery can be coupled to a motor. The speed management control can include a pulse width modulation circuit, which can control the duration of pulses supplied from the battery to the motor. The motor can include a primary set of coils and a secondary set of coils. The control system can direct surplus current to the secondary set of coils to maximize the torque generated by the motor. 1. A surgical stapler , comprising:an end effector comprising a plurality of deployable staples and a firing element;a motor configured to drive said firing element, wherein said motor comprises a primary set of coils and a secondary set of coils; and a battery;', 'a pulse width modulation circuit configured to control the duration of current pulses supplied from said battery to said motor; and', a first operating state in which the primary set of coils are configured to drive said firing element; and', 'a second operating state in which said primary set of coils and said secondary set of coils are configured to drive said firing element., 'a switch configured to switch the electric motor between a plurality of operating states, wherein the plurality of operating states comprises], 'a control system in signal communication with said motor, wherein said control system comprises2. The surgical stapler of claim 1 , wherein the battery supplies current pulses to said primary set of coils at a voltage that corresponds to the maximum torque of said primary set of coils during the first operating state.3. The surgical stapler of claim 2 , wherein a surplus current is supplied to said secondary set of coils during the second operating state.4. The surgical stapler of claim 3 , wherein said control system maximizes the surplus current supplied to said secondary set of coils during the second operating state based on the volt-ampere limit of said battery.5. The surgical ...

TORQUE OPTIMIZATION FOR SURGICAL INSTRUMENTS

A control system having speed management control. The control system can be in signal communication with a battery, and the battery can be coupled to a motor. The speed management control can include a pulse width modulation circuit, which can control the duration of pulses supplied from the battery to the motor. The motor can include a primary set of coils and a secondary set of coils. The control system can direct surplus current to the secondary set of coils to maximize the torque generated by the motor. 1. A surgical stapler , comprising:an end effector comprising a plurality of deployable staples and a firing element;a motor configured to drive said firing element, wherein said motor comprises a primary set of coils and a secondary set of coils; and a battery;', 'a pulse width modulation circuit configured to control the duration of current pulses supplied from said battery to said motor; and', a first operating state in which the primary set of coils are configured to drive said firing element; and', 'a second operating state in which said primary set of coils and said secondary set of coils are configured to drive said firing element., 'a switch configured to switch the electric motor between a plurality of operating states, wherein the plurality of operating states comprises], 'a control system in signal communication with said motor, wherein said control system comprises2. The surgical stapler of claim 1 , wherein the battery supplies current pulses to said primary set of coils at a voltage that corresponds to the maximum torque of said primary set of coils during the first operating state.3. The surgical stapler of claim 2 , wherein a surplus current is supplied to said secondary set of coils during the second operating state.4. The surgical stapler of claim 3 , wherein said control system maximizes the surplus current supplied to said secondary set of coils during the second operating state based on the volt-ampere limit of said battery.5. The surgical ...

Methods of treating a vessel using an aspiration pattern

Vascular treatment devices and methods include a woven structure including a plurality of bulbs that may be self-expanding, a hypotube, for example including interspersed patterns of longitudinally spaced rows of kerfs, and a bonding zone between the woven structure and the hypotube. The woven structure may include patterns of radiopaque filaments measureable under x-ray. Structures may be heat treated to include various shapes at different temperatures. The woven structure may be deployable to implant in a vessel. A catheter may include a hypotube including interspersed patterns of longitudinally spaced rows of kerfs and optionally a balloon. Laser cutting systems may include fluid flow systems.

Ultrasound catheter system

A method of recanalizing a lumen of a vessel includes positioning an ultrasonic device having a distal end in a first position within the lumen of the vessel; transmitting pulsed ultrasonic vibrations though the ultrasonic device to the distal end; and advancing the distal end through the lumen to recanalize the vessel.

Method for usage of the shroud as an aspect of sensing or controlling a powered surgical device, and a control algorithm to adjust its default operation

A method for controlling a surgical instrument is disclosed. In at least one instance, the surgical instrument comprises a shroud and the operation of the surgical instrument is modified based on input from a sensing circuit configured to sense a parameter of the shroud. In certain instances, the surgical instrument comprises a strain gage circuit and the operation of the surgical instrument is modified based on input from the strain gage circuit.

Surgical instrument with a hardware-only control circuit

A surgical instrument is disclosed. The surgical instrument includes an electric motor and a control circuit. The control circuit includes a plurality of logic gates and a monostable multivibrator. The monostable multivibrator is connected to a first one of the logic gates. The control circuit is configured to alter a rate of action of a function of the surgical instrument by controlling a speed of rotation of the electric motor based on a sensed parameter.

Surgical instruments comprising button circuits

A surgical instrument is disclosed comprising an actuator and circuitry mounted on and/or embedded in the actuator.

Fluid ejection device and medical device

A fluid ejection device includes a pulse generation unit that changes the volume of a fluid chamber using a volume changing section to eject pulsating flow; a fluid supply unit including a pump chamber and a pump chamber volume changing section that changes the volume of the pump chamber to supply the fluid to the pulse generation unit; a drive control unit that inputs a pulsating flow drive signal for driving the pump chamber volume changing section and inputs a fluid supply drive signal for driving the fluid supply unit; and an operation command input unit that inputs an operation command to the drive control unit, wherein the fluid supply drive signal and the pulsating flow drive signal are input in conjunction with the input of the operation command.

Method for operating surgical instrument systems

A method for adjusting the operation of a surgical instrument using machine learning in a surgical suite is disclosed.

METHODS AND SYSTEMS FOR LASER OPHTHALMIC SURGERY THAT PROVIDE FOR IRIS EXPOSURES BELOW A PREDETERMINED EXPOSURE LIMIT

A laser surgical method for performing a corneal incision while maintaining iris exposure below a predetermined exposure limit includes: determining an initial iris exposure based on an initial treatment scan, determining whether the initial iris exposure is less than the predetermined exposure limit; generating a revised treatment scan comprising one or more treatment scan modifying elements when the initial iris exposure is greater than the predetermined exposure limit, and scanning the focal zone of a pulsed laser beam according to the revised treatment scan, thereby performing the corneal incision, wherein the one or more treatment scan modifying elements causes the iris exposure to be smaller than the predetermined exposure limit. 1. A system for cataract surgery on an eye of a patient , comprising:a laser assembly for generating a pulsed laser treatment beam;an imaging system configured for imaging an ocular tissue of the patient, the ocular tissue comprising corneal tissue;an optical scanning system configured for positioning the focal zone of the treatment beam to targeted locations of the ocular tissue, the targeting locations including a location in the corneal tissue; anda computer control system operatively coupled to the laser assembly, the imaging system, and the optical scanning system, and programmed to:a) generate a simulated initial treatment scan and calculating an initial indication of exposure level corresponding to the initial treatment scan;b) determine whether the initial indication of exposure level satisfies a predetermined safe exposure condition;c) generate a simulated revised treatment scan comprising one or more treatment scan modifying elements when the initial indication of exposure level fails to satisfy the predetermined safe exposure condition, wherein the one or more treatment scan modifying elements cause a calculated revised indication of exposure level corresponding to the revised treatment scan to satisfy the predetermined ...

System and Method for Treating Heart Tissue

Some embodiments of a system or method for treating heart tissue can include a control system and catheter device operated in a manner to intermittently occlude a heart vessel for controlled periods of time that provide redistribution of blood flow. In particular embodiments, the system can be configured to provide an estimation of the cumulative effects of the treatment. For example, some embodiments of the system or method can treat myocardium that is at risk of infarction by intermittently altering blood flow in a venous system to induce microcirculation within the myocardium, and can output a cumulative dosage value indicative of a measurement of progress of reducing an infarct size.

LAPAROSCOPIC SURGICAL APPARATUS

A fluid ejection device includes a fluid ejection tube having a forward end nozzle inserted into an abdominal cavity. The fluid ejection tube, accommodated in a cylindrical casing section, is movable in an extending direction. The fluid ejection tube moves in the extending direction, interlocked with a sliding operation of a sealing state switching operation section on the outside of the casing section. Fixed and sliding sealing sections, which seal the inside of the abdominal cavity off from outside, are arranged between the fluid ejection tube and an inner wall surface of the casing section. The fixed and sliding sealing sections shift from a first sealing state with a first airtightness to a second sealing state with a higher airtightness, through movement of the fluid ejection tube by the sealing state switching operation section. The fluid ejection device is electrically drivable when the second sealing state is established. 1. A laparoscopic surgical apparatus comprising:a surgical instrument section that has an extension site having at least a forward end part thereof inserted into an abdominal cavity, and is driven by electric power supplied from outside;a cylindrical accommodation section that accommodates the extension site of the surgical instrument section in such a way that the extension site is movable in an extending direction; andan operation section for causing the extension site of the surgical instrument section to move in the extending direction from outside the accommodation section;wherein a sealing section for sealing an inside of the abdominal cavity off from outside is arranged between the surgical instrument section and the accommodation section,the sealing section is capable of shifting from a first sealing state with a first airtightness to a second sealing state with a higher airtightness than in the first sealing state, through the movement of the extension site by the operation section, andthe surgical instrument section is in an ...

Photoeradication of microorganisms with pulsed purple or blue light

The present invention is directed to a system and method for photoeradication of microorganisms from a target. The method includes the step of obtaining test data for a plurality of experiments each of which comprises irradiating test microorganisms with a plurality of light pulses having a wavelength that ranges from 380 nm to 500 nm. The light pulses have a plurality of pulse parameters (peak irradiance, pulse duration, and off time between adjacent light pulses) and are provided at a radiant exposure that ranges from 0.5 J/cm 2 to 60 J/cm 2 during each of a plurality of irradiation sessions. The test data comprises a survival rate for the test microorganisms after irradiation with the light pulses. The method also includes the step of analyzing the test data to identify the pulse parameters for the light pulses and the radiant exposure for each of the irradiation sessions that result in a desired survival rate for the test microorganisms. The method further includes the step of irradiating the microorganisms of the target with light pulses having the identified pulse parameters at the identified radiant exposure for each of the irradiation sessions so as to photoeradicate all or a portion of the microorganisms.

Transcatheter cardiac de-airing system

Systems and methods for de-airing a cardiac chamber during cardiac surgery are provided. A catheter-based inflatable device is inserted adjacent a target area of the heart, and the frequency of inflation and deflation of the inflatable device is controlled via a remote controller to change the shape of the cardiac chamber to dislodge air bubbles from their deposition site in the cardiac chamber.

LASER MODULATION FOR COAGULATION

An apparatus has a pump module providing pump energy, a resonator and a controller. The resonator includes a gain medium receiving the pump energy from the pump module and producing light; reflective surfaces reflecting light produced by the gain medium back toward the gain medium; and a variable light attenuator receiving light produced by the gain medium. The controller controls the amount of light attenuated by the variable light attenuator such that the apparatus emits windows of pulses of laser light at spaced time intervals, each window containing a plurality of pulses of laser light and each interval between windows being larger than an interval between pulses within a window. The emitted windows of pulses of laser light heat tissue to a temperature that causes coagulation without vaporization. 120-. (canceled)21. A controller for a laser system comprising:a driver configured to produce a driver signal, the driver having an input for turning the driver signal on and off, the driver signal such that when the driver signal is on a variable light attenuator attenuates more light than when the driver signal is off; anda timer, coupled to the input of the driver for turning the driver signal on and off and applying a timer signal on the input of the driver for turning the driver signal on and off, the timer providing a cyclical timer signal in a first mode of operation and a static timer signal in a second mode of operation, the timer having a frequency input that defines the frequency of the cyclical timer signal and a duration input that defines a length of time that the timer signal turns the driver signal off during the cyclical timer signal, wherein the controller controls the amount of light attenuated by the variable light attenuator such that the apparatus emits windows of pulses of laser light at spaced time intervals, each window containing a plurality of pulses of laser light and each interval between windows being larger than an interval between pulses ...

Detecting short circuits in electrosurgical medical devices

Various embodiments are directed to an electrosurgical systems and methods for providing an electrosurgical signal to a patient. An electrosurgical signal defining a plurality of pulses may be provided to first and second electrodes. A first reading may be received indicating an impedance between the first and second electrodes taken at a first point of a first pulse of the electrosurgical signal. A second reading may indicate the impedance a first point of a second pulse of the electrosurgical signal, where the first point of the first pulse and the first point of the second pulse are at equivalent positions within the first and second pulses. Based on a comparison of the first reading and the second reading, a short circuit may be determined and a signal indicating the short circuit may be generated.

ELECTRICAL ANALYZER ASSEMBLY FOR INTRAVASCULAR LITHOTRIPSY DEVICE

A catheter system for treating a treatment site within or adjacent to a vessel wall or a heart valve includes an energy source, a balloon, an energy guide, and an electrical analyzer assembly. The energy source generates energy. The balloon is positionable substantially adjacent to the treatment site. The balloon has a balloon wall that defines a balloon interior that receives a balloon fluid. The energy guide is configured to receive energy from the energy source and guide the energy into the balloon interior. The electrical analyzer assembly is configured to monitor a balloon condition during use of the catheter system. The electrical analyzer assembly can include a first electrode, a second electrode, and an impedance detector that is electrically coupled to the first electrode and the second electrode. The impedance detector is configured to detect impedance between the first electrode and the second electrode.

Devices, systems and methods for an oscillating crown drive for rotational atherectomy

The present invention is directed in various methods, devices and systems relating to rotational atherectomy. More specifically, an oscillating driver is connected to a drive shaft, or torque transfer tube, with abrasive element mounted thereon. The result provides a rotational working diameter for the rotating abrasive element that is larger than its resting diameter. Generally, the preferred abrasive element is concentric in profile and/or with center of mass collinear with the drive shaft's rotational axis. However, eccentric abrasive elements, both in terms of offsetting center of mass and/or geometric eccentricity may also be employed.

Shockwave catheter system with energy control

A system that breaks calcium in a liquid includes a catheter including first and second electrodes arranged to receive there-across a high electrical voltage at an initial low current. The high electrical voltage causes an electrical arc to form across the electrodes creating a gas bubble within the liquid, a high current to flow through the electrodes, and a mechanical shock wave. A power source provides the electrodes with the high electrical voltage at the initial current and terminates the high electrical voltage in response to the high current flow through the electrodes.

Ultrasound Catheter and Methods for Making and Using Same

Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, ultrasound catheters include an elongate flexible catheter body with one or more lumens, an ultrasound transmission member extending longitudinally through the catheter body lumen and, in some embodiments, a guidewire tube extending through the lumen. A distal head for disrupting occlusions is coupled with the distal end of the ultrasound transmission member and is positioned adjacent the distal end of the catheter body. Some embodiments include improved features such as a bend in the catheter body for enhancing positioning and/or advancement of the catheter.

Medical laser system

A medical laser system in accordance with one or more further embodiments includes a crystal-based laser, a power supply for powering the crystal-based laser, a controller operably connected to the crystal-based laser and the power supply, and a memory operably connected to the controller. The controller is programmed to: (a) activate the crystal-based laser to cause a laser light emission by controlling power supplied by the power supply to the laser responsive to a user activation input; and (b) record data in the memory identifying a power level, number of pulses, and duration of the laser light emission.

Fluid ejection device

A fluid ejection device includes first and second fluid ejection units that eject fluid in a pulse-like manner according to first and second drive signals, respectively. A first fluid supplying unit supplies fluid to the first fluid ejection unit via a first channel. A second fluid supplying unit supplies fluid to the second fluid ejection unit via a second channel. A first fluid-ejecting control unit outputs the first drive signal after changing the fluid in the first channel to a predetermined state. A second fluid-ejecting control unit outputs the second drive signal after changing the fluid in the second channel to a predetermined state. A malfunction detecting unit detects malfunctions that might occur in the first fluid ejection unit, fluid supplying unit, channel, or fluid-ejecting control unit. When the malfunction is detected, the second fluid-ejecting control unit starts the second preparation operation.

FLUID EJECTION DEVICE AND MEDICAL INSTRUMENT

A fluid ejection device includes a pulsation generator which converts a fluid into a pulsed fluid, a fluid supply unit (supply pump) which supplies the fluid to the pulsation generator, an ejection tube which has an ejection opening communicating with the pulsation generator, a suction tube into which the ejection tube is inserted with play, a suction channel provided between the suction tube and the ejection tube, a suction opening provided at an end of the suction channel in a vicinity of the ejection opening, and a suction unit (suction pump) which sucks fluid in such a manner that the fluid introduced from the suction opening passes through the suction channel. The ejection opening is held by an inner circumferential part of the suction opening. According to this structure, vibration of the ejection tube in the vicinity of the ejection opening can be reduced. 1. A fluid ejection device comprising: a fluid chamber accommodating the fluid; and', 'a pressure generator for applying pressure to a fluid within the fluid chamber and converting the fluid into a pulsed fluid flow;, 'a pulsation generator for converting a fluid into a pulsed fluid includingan ejection tube that includes an ejection opening communicating with the pulsation generator;a suction tube into which the ejection tube is inserted;an upper case and a lower case that form a body for accommodating at least the fluid chamber and the pressure generator, wherein the ejection tube extends from an outlet channel of the pulsation generator and the suction tube extends towards the body;wherein the ejection tube is held by an inner circumferential surface of the suction tube, the suction tube has a cross sectional area in a crossing direction to an extending direction of the suction tube and the cross sectional area of the suction tube, including an inner lumen thereof, has a major axis and a minor axis; andthe ejection opening is held by the portion of the suction tube corresponding to the minor axis, the ...

Fluid ejection device

A fluid ejection device includes a fluid ejection unit that ejects a fluid, an ejection control unit that controls the ejection of the fluid from the fluid ejection unit, a fluid container that accommodates the fluid to be supplied to the fluid ejection unit, and a pressure adjustment unit that adjusts an inner pressure of the fluid container in such a manner that the inner pressure of the fluid container gets closer to a target pressure than a first threshold value for the inner pressure of the fluid container. When the inner pressure of the fluid container is closer to the target pressure than a second threshold value that is separated further from the target pressure than the first threshold value, the ejection control unit receives a demand for the ejection of the fluid.

Smart blade and power pulsing

An ultrasonic device may include an electromechanical ultrasonic system defined by a predetermined resonant frequency, the electromechanical ultrasonic system including an ultrasonic transducer coupled to an ultrasonic blade. A method of controlling energy delivered to the ultrasonic device may include determining an impedance of the ultrasonic transducer during a transection process, analyzing the impedance of the ultrasonic transducer, profiling the ultrasonic blade based on the impedance, and adjusting a power delivered to the transducer during the transection process based on the profile of the blade. The method may further include pulsing, the power delivered to the ultrasonic transducer, determining changes in tissue characteristics of tissue located in an end effector, wherein the changes in tissue characteristics is determined between pulses, and adjusting power delivered to the ultrasonic transducer based on the tissue changes throughout the transection. An ultrasonic instrument may include components configured to effect the method.

Methods for controlling temperature in ultrasonic device

A generator, ultrasonic device, and method for controlling a temperature of an ultrasonic blade are disclosed. A control circuit coupled to a memory determines an actual resonant frequency of an ultrasonic electromechanical system comprising an ultrasonic transducer coupled to an ultrasonic blade by an ultrasonic waveguide. The actual resonant frequency is correlated to an actual temperature of the ultrasonic blade. The control circuit retrieves from the memory a reference resonant frequency of the ultrasonic electromechanical system. The reference resonant frequency is correlated to a reference temperature of the ultrasonic blade. The control circuit then infers the temperature of the ultrasonic blade based on the difference between the actual resonant frequency and the reference resonant frequency. The control circuit controls the temperature of the ultrasonic blade based on the inferred temperature

In-the-jaw classifier based on a model

An ultrasonic device may include an electromechanical ultrasonic system defined by a predetermined resonant frequency, in which the system may include an ultrasonic transducer coupled to an ultrasonic blade. A method of estimating a state of an end effector of the ultrasonic device may include applying a drive signal defined by a magnitude and a frequency to the ultrasonic transducer, sweeping the frequency of the drive signal from below a first resonance to above the first resonance of the electromagnetic ultrasonic system, measuring and recording, impedance/admittance circle variables R e , G e , X e , and B e , comparing, the measured impedance/admittance circle variables R e , G e , X e , and B e to reference impedance/admittance circle variables R ref , G ref , X ref , and B ref , and determining, a state or condition of the end effector based on the result of the comparison. An electromechanical ultrasonic system may include a control circuit to effect the method.

Detection of large vessels during parenchymal dissection using a smart blade

An ultrasonic device may include an electromechanical ultrasonic system defined by a predetermined resonant frequency and include an ultrasonic transducer coupled to an ultrasonic blade. A method of delivering energy to the device may include applying energy to the blade at a first power level via the transducer coupled to the blade, measuring a complex impedance of the transducer, receiving a complex impedance feedback data point, comparing the complex impedance feedback data point to a reference complex impedance characteristic pattern, and determining that the blade is contacting a vessel based on the comparison. The method may also include disabling the power applied to the transducer and switching to a lower power level. The method may further include generating a warning that the blade is contacting a vessel, such as a light or a sound. An ultrasonic surgical instrument may effect the method.

METHOD FOR OPERATING A SURGICAL INSTRUMENT

A surgical instrument is configured to compensate for battery pack and drivetrain failures. One method includes generating a firing sequence, determining whether a subset of rechargeable battery cells is damaged during the firing sequence, and stepping-up an output voltage of the battery pack to complete the firing sequence in response to a determination that a subset of the rechargeable battery cells is damaged. Another method includes generating a mechanical output to motivate a drivetrain to transmit a motion to a jaw assembly of the surgical instrument, activating a safe mode in response to an acute failure of the drivetrain, and activating a bailout mode in response to a catastrophic failure of the drivetrain. Another method includes driving a drivetrain, sensing and recording vibration information from the drivetrain, generating an output signal based on the vibration information, and determining a status of the surgical instrument based on the output signal. 1. A method of compensating for a battery pack failure in a powered surgical instrument , the method comprising:generating, by an electric motor, a rotational motion to motivate a firing assembly to deploy staples into a captured tissue during a firing sequence;determining, by a control circuit, whether a subset of rechargeable battery cells is damaged during the firing sequence based on a measurement performed by a battery-cell health indicator; andstepping-up, by the control circuit coupled to a voltage converter, an output voltage of the battery pack to complete the firing sequence in response to a determination that a subset of the rechargeable battery cells is damaged.2. The method of claim 1 , further comprising storing claim 1 , by the control circuit coupled to a memory claim 1 , a damaged status of the power pack in the memory in response to a determination that a subset of the rechargeable battery cells is damaged.3. The method of claim 2 , further comprising clearing claim 2 , by the control ...

Tamper proof circuit for surgical instrument battery pack

A surgical instrument includes a shaft, an end effector extending distally from the shaft, and a housing extending proximally from the shaft. The housing includes a motor configured to generate at least one motion to effectuate the end effector, and a power source configured to supply power to the surgical instrument, wherein the power source includes a casing, a data storage unit, and a deactivation mechanism configured to interrupt access to data stored in the data storage unit. In addition, the power source includes a battery pack and a deactivation mechanism configured to deactivate the battery pack if the casing is breached.

Electrically enhanced retrieval of material from vessel lumens

Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the thrombectomy system. The system can include a catheter having a distal portion configured to be positioned adjacent to a thrombus in a blood vessel, an electrode disposed at the distal portion of the catheter, and an interventional element configured to be delivered through a lumen of the catheter. The electrode and the interventional element are each configured to be electrically coupled to an extracorporeal current generator. Delivery of current to the interventional element can be gradually ramped up during initialization to improve patient comfort and safety.

PULSED RADIOFREQUENCY ABLATION

Ablation systems and methods of the present disclosure are directed toward delivering pulsed radiofrequency (RF) energy to target tissue. The pulsations of the RF energy, combined with cooling at a surface of the target tissue, can advantageously promote local heat transfer in the target tissue to form lesions having dimensions larger than those that can be safely formed in tissue using non-pulsed RF energy under similar conditions. 1. A method comprising:placing an ablation electrode at an interface between tissue and blood in an anatomic structure of a patient such that fluid in the anatomic structure moves through the ablation electrode placed at the interface;delivering RF energy to the ablation electrode at the interface during a period of lesion formation;delivering an irrigation fluid to the interface during at least a portion of the period of lesion formation such that the fluid moving through the ablation electrode includes the irrigation fluid; andmonitoring tissue at the interface, wherein monitoring tissue at the interface includes reducing the RF energy and reducing the volumetric flow rate of the irrigation fluid during a measurement phase of the period of lesion formation, receiving one or more signals indicative of temperature at the interface, and determining a temperature at the interface based on the one or more signals received during the measurement phase of the period of lesion formation.2. The method of claim 1 , wherein determining the temperature at the interface is further based on the one or more signals received during a portion of the period of lesion formation other than the measurement phase.3. The method of claim 1 , further comprising displaying the determined temperature on a graphical user interface.4. The method of claim 1 , further comprising claim 1 , based on the determined temperature claim 1 , titrating the RF energy delivered to the ablation electrode.5. The method of claim 1 , further comprising adjusting the volumetric ...

Pulsed radiofrequency ablation

Ablation systems and methods of the present disclosure are directed toward delivering pulsed radiofrequency (RF) energy to target tissue. The pulsations of the RF energy, combined with cooling at a surface of the target tissue, can advantageously promote local heat transfer in the target tissue to form lesions having dimensions larger than those that can be safely formed in tissue using non-pulsed RF energy under similar conditions.

Motor-driven surgical cutting instrument

A motor-driven surgical cutting and fastening instrument that comprises an end effector, an electric motor, and a motor control circuit. The motor control circuit is for monitoring a parameter of the electric motor that is indicative of movement of a moveable member of the end effector, and for adjustably controlling the electric motor based on the monitored parameter to thereby adjustably control movement of the moveable member of the end effector during forward rotation of the electric motor.

Angle-opening glaucoma treatment methods and apparatus

An iridocorneal angle of the eye can be opened with a plurality of treatment locations at least about 2 mm radially outward from a limbus of the eye. The opening on the angle can be beneficial for treating both narrow angle glaucoma and open angle glaucoma. The plurality of treatment locations located away from the limbus can decrease invasiveness and complexity of the procedure. The plurality of treatment locations at least about 2 mm away from the limbus can provide tensioning to zonules coupled to the lens of the eye to flatten the lens of the eye, which can allow the iris to move posteriorly so as to open the iridocorneal angle. The plurality of treatment locations may comprise scleral locations, in which shrinkage of scleral tissue at the plurality of treatment locations provides tensioning to the zonules.

RELAY DEVICE AND ULTRASONIC-SURGICAL AND ELECTROSURGICAL SYSTEM

A surgical controller for controlling a treatment instrument, the surgical controller including one or more processors configured to: detect whether a switch is actuated; control a first surgical energy source to actuate the treatment instrument to perform a first treatment based on a first surgical energy in response to detecting that the switch is actuated; detect whether a parameter reaches a predetermined value during actuation of the treatment instrument to perform the first treatment; and control the second surgical energy source to actuate the treatment instrument to perform a second treatment based on a second surgical energy different from the first surgical energy in response to detecting that the parameter reached the predetermined value. 1. A surgical controller for controlling a treatment instrument , the surgical controller comprising one or more processors configured to:detect whether a switch is actuated;control a first surgical energy source to actuate the treatment instrument to perform a first treatment based on a first surgical energy in response to detecting that the switch is actuated;detect whether a parameter reaches a predetermined value during actuation of the treatment instrument to perform the first treatment; andcontrol a second surgical energy source to actuate the treatment instrument to perform a second treatment based on a second surgical energy different from the first surgical energy in response to detecting that the parameter reached the predetermined value.2. The surgical controller according to claim 1 , detect that a time reaches a predetermined time; and', 'control the first surgical energy source to stop the first treatment in response to detecting that the time reached the predetermined time., 'wherein the one or more processors are configured to3. The surgical controller according to claim 1 ,wherein the one or more processors are configured to control the first surgical energy source to perform the first treatment based on ...

SUCTION AND IRRIGATION SEALING GRASPER

Aspects of the present disclosure are presented for a single surgical instrument configured for performing sealing procedures on tissues using electrosurgical or ultrasonic energy, irrigating tissue at the sealing site, and evacuating material from the sealing site. An end effector of the surgical instrument may include multiple members arranged in various configurations to collectively perform the aforementioned functions. The evacuation and irrigation elements may comprise one or more fluid paths configured to remove material from or deliver fluid to a surgical field. The instrument may include electrical and mechanical aspects that may be used to control the evacuation and irrigation functions. In this way, a user may use a single surgical instrument to perform these tasks during a tissue sealing procedure. 1. A surgical instrument comprising:a handle assembly;a shaft coupled to a distal end of the handle assembly; a first jaw;', 'a second jaw, wherein the first jaw and the second jaw cooperate to capture tissue therebetween and wherein at least one of the first and second jaws is configured to transmit electrosurgical energy to coagulate the tissue;', 'an evacuation mechanism configured to evacuate fluid; and', 'an irrigation mechanism configured to transmit fluid; and, 'an end effector coupled to a distal end of the shaft, the end effector comprisinga clamp arm coupled to the first jaw and configured to open the first jaw about a hinge coupled to the shaft.2. The surgical instrument of claim 1 , further comprising a spring torsion system configured to close the first jaw onto the second jaw while no force is exerted on the clamp arm.3. The surgical instrument of claim 2 , further comprising a rotatable mechanical bar pivotally coupled to the clamp arm on a first end and pivotally coupled to a horizontal bar of the spring torsion system on the second end opposite the first end.4. The surgical instrument of claim 3 , wherein the rotatable mechanical bar is ...

SKIN TREATMENT SYSTEM

A method of operating a flashlamp in a skin treatment system comprises the steps of charging capacitor, discharging the capacitor through a flashlamp, and interrupting the discharge of the capacitor through the flashlamp at a predetermined time based on at least one condition caused by the discharge of the capacitor through the flashlamp. 1. A skin treatment method comprising the steps of:charging a capacitor to a known level of energy capacity;discharging the capacitor through a flashlamp at a first time, wherein said capacitor discharge causing the flashlamp to output a light to a skin surface, andinhibiting the discharge of the capacitor through the flashlamp based on a condition caused by the discharge of the capacitor through the flashlamp.2. The method according to claim 1 , wherein said condition comprising:a spectrum of the generated light, caused by the discharge of the capacitor through the flashlamp, possess insufficient energy in a desirable frequency region associated with skin treatment.3. The method according to claim 1 , wherein said condition comprising:a current density of the discharge of the capacitor through the flashlamp is below a predetermined current density threshold level.4. The method according to claim 1 , wherein said condition comprising:an energy applied to the skin by the generated light, caused by the discharge of the capacitor through the flashlamp, is greater than a maximum desirable energy.5. The according to claim 1 , wherein wherein said condition comprises:a time in a range between 1.5 ms and 2 ms after the first time.6. The method according to claim 1 , further comprising the steps of:determining a skin type; andadjusting said condition based on the skin type.7. The method according to claim 6 , wherein said determining a skin type comprises:receiving as an input said skin type.8. The method according to claim 1 , further comprising:charging the capacitor, through a power source, through a first switch; anddischarging the ...

DERMATOLOGICAL PICOSECOND LASER TREATMENT SYSTEMS AND METHODS USING OPTICAL PARAMETRIC OSCILLATOR

Dermatological systems and methods for providing a picosecond laser treatment a plurality of treatment wavelengths, at least one of which is provide by an optical parametric oscillator (OPO) capable of providing picosecond laser pulses at a wavelength in the red region of the visible electromagnetic spectrum for treating one or more target tissue types. In some embodiments, the OPO is capable of providing picosecond laser pulses at a wavelength in one of the near-infrared and the infrared region of the electromagnetic spectrum. 1. A dermatological treatment system for removal of one or more of tattoos and pigmented lesions using pulsed laser light , comprising:a laser engine capable of outputting first laser pulses having a first wavelength in the near-infrared region of the electromagnetic spectrum, a pulse width of 100 psec to 1 nsec, and a first pulse energy in the range of 100 mJ/pulse to 10 J/pulse;a second harmonic generator (SHG) capable of receiving the first laser pulses from the laser engine and generating second harmonic laser pulses having a second wavelength in the green region of the visible electromagnetic spectrum;an optical parametric oscillator (OPO) capable of receiving the second harmonic laser pulses and generating OPO signal pulses having a third wavelength in the red region of the visible electromagnetic spectrum and OPO idler pulses having a fourth wavelength in one of the near-infrared and infrared regions of the electromagnetic spectrum;an applicator capable of receiving a selected one of the first laser pulses, the second harmonic laser pulses, and the OPO signal pulses and applying the selected pulses to the skin of a patient;a user-selectable first output path located between the laser engine and the SHG, wherein the user may select the first output path to output first laser pulses to the applicator;a user-selectable second output path located between the SHG and the OPO, wherein the user may select the second output path to output ...