Plasma coagulating electrosurgical instrument and electrosurgical apparatus incorporating the same

A probe electrode

A probe electrode 2 for use with an electrical current device, the probe electrode 2 comprising a first and a second electrically conductive electrode member 4&6, each comprising: an intermediate portion; a proximal end 8; and a respective distal end 14,16. The electrode-members 4&6 are coupled together at their proximal ends 8 and their intermediate portions and their distal ends 14,16 are spaced apart. Each distal end 14&16 define a contact surface comprising a cylindrical portion 18 terminated in a rounded end 20. Preferably, an outer layer of electrically insulating material 12 covers each electrode-member’s intermediate portion. The rounded end 20 of each contact surface may have a pre-determined radius. The first electrode-member 4 may have a longer intermediate portion than that of the second electrode-member 6, so that the first electrode-member’s distal end 14 extends axially beyond the second electrode-member’s distal end 16. Also, an electrical current therapy device comprising ...

A gentle hemorrhoid treatment offering a substantially painless healing

The teachings provided herein are directed to a methods and devices for treating a hemorrhoid in a subject in a manner that produces substantially less post-procedural pain in the subject, the method minimizing or avoiding a removing or a necrosis of a rectal tissue fold.

SURGICAL STAPLING DEVICE

A surgical stapling device comprises an elongated body portion having proximal and distal portions and a head portion positioned adjacent the distal portion of the body portion. The head portion includes a shell assembly and an anvil assembly movable relative to the shell assembly between un-approximated and approximated positions. The anvil assembly includes an anvil head and a center rod extending from the anvil head, the center rod includes a first annular engagement member and a second annular engagement member spaced distally from the first annular engagement member, and a drive screw with proximal and distal ends extending at least partially through the body portion and an anvil retainer with proximal and distal ends, the anvil retainer being operably connected to the drive screw and configured and dimensioned to at least partially receive the center rod, wherein the drive screw moves the anvil assembly between the un-approximated and approximated positions, the first annular engagement ...

APPARATUS AND METHOD FOR EFFECTING AT LEAST ONE ANATOMICAL STRUCTURE

Exemplary embodiments of apparatus and method for effecting at least one anatomical structure of a body can be provided. For example, at least one first arrangement can be provided which is structured to be at least partially inserted into the body and including an opening. In addition, at least one second arrangement can be provided which configured to increase and/or decrease a size of the opening by a motion thereof in a first direction. Further, at least one third arrangement can be provided which can be coupled to the second arrangement(s), and configured to move at least in a second direction which is at least approximately parallel to the second direction. In particular, when the anatomical structure(s) is/are provided or inserted in the opening and is pressed on by the second arrangement(s), a first motion of the second arrangement(s) toward the anatomical structure(s) in the first direction is reduced and/or terminated while a second motion of the third arrangement(s) in the second ...

MECHANISM TO INTRAKAVITAEREN THE RADIOTHERAPY OF MALICIOUS MASTDARMGESCHWUELSTEN.

Treatment of tissue using radio frequency energy system and method

Automatic Image guided tissue removal and processing

DEVICE AND METHOD FOR TREATMENT OF HEMORRHOIDS USING SUCTION

A device includes a handle having a trigger in combination with a distal portion, the distal portion including a rigid elongated hollow member which receives tissue therein and a plunger fitted with and configured to slide longitudinally within the hollow member to induce suction at a distal end of the hollow member as the plunger is moved proximally within the hollow member. The trigger is hingedly coupled to the plunger so that pulling the trigger slides the plunger proximally with respect to the hollow member to generate suction to draw the tissue into the distal end of the hollow member. The device further includes a tissue treatment mechanism for encircling the tissue received at the distal end of the hollow member.

Rectal phantom unit and phantom device including the same

An aspect of the present invention provides a rectal phantom unit and a phantom device including the same, including: a holder having a penetration portion formed in a longitudinal direction thereof; a rectal simulant which is inserted to the penetration portion of the holder, includes a plurality of unit plates laminated thereon, and simulates a rectum of a body; and a film which is disposed between the rectal simulant and the holder and measures an absorbed dose of radiation irradiated to the rectal simulant.

TRANSLUCENT CANNULA WITH SELF CONTAINED COOLING FUNCTION AND ENHANCED VISIBILTY FOR ABLATION CATHETER

The fluid conducting channels have fluid-carrying dimensions sufficient to transport sufficient liquid at 15° C. through the channels to cool both tissue adjacent the channels and the tip during emission from a tissue ablating laser within the thermal energy emitting tip. The composition of the one-piece cannula is at least translucent/transparent to at least 50% of infrared radiation between 900-1200 nm emitted from within the cannula at the thermal energy-emitting tip. The composition of the one-piece cannula should have a melting temperature of at least 150° C.

COLONOSCOPY PROBE DEVICE

A colonoscopy screening device includes an elongated flexible probe having a proximal end and a distal end, the distal end adapted for rectal insertion, and an electrode at the distal end and adapted for contact with a suspect tissue growth. A measurement circuit connected to the electrode for measuring an electrical characteristic of the suspect tissue growth based on delivery of an electrical signal from the electrode. A pair of electrodes in an opposed orientation allows an actuator to drawing at least one of the electrodes towards the other electrode for engaging the suspect tissue growth for passing the electrical signal through the suspect tissue growth. Measurement of the resulting signal determines bioelectrical properties of the growth for determination of possible malignancy.

Dual-function plasma and non-ionising microwave coagulating electrosurgical instrument and electrosurgical apparatus incorporating the same

NON-LITHOTRIPSIC KIDNEY-STONE THERAPY

One aspect of the present invention relates to a method of using peristalsis to force a polymer plug through a mammalian lumen, thereby removing any calculi and/or calculi fragments present in the lumen. In one embodiment, the method is used as an alternative to conventional lithotripsy. In another embodiment, the method is used in conjunction with lithotripsy, thereby removing the small calculi fragments that result from such procedures.

Systems and methods for treating hemorrhoids

Systems and methods treat hemorrhoids by introducing a treatment device into the anal canal to extend above a hemorrhoidal plexus and adjacent a tissue region containing blood vessels that feed the hemorrhoidal plexus. The systems and methods operate the treatment device to affect tissue morphology in the tissue region to occlude or otherwise reduce blood flow through the vessels.

Margin extension device and method

A margin extension device and method are disclosed herein. The margin extension device can be used for ablating one or several cancer cells and can include a contact member and a plurality of electrodes. The contact member can be electrically conductive, and can electrically connect the electrodes. The margin extension device can further include one or several leads that connect the electrodes of the margin extension device to a treatment controller. The treatment controller can include a pulse generator that can generate one or several electrical pulses that generate one or several electrical fields in tissue proximate to the margin extension device.

ЭНДОРЕКТАЛЬНАЯ КАТУШКА ДЛЯ ПРЕДСТАТЕЛЬНОЙ ЖЕЛЕЗЫ С ОТКРЫТЫМ ДОСТУПОМ ДЛЯ ХИРУРГИЧЕСКИХ ИНСТРУМЕНТОВ

Изобретение относится к медицинской технике. Эндоректальная катушка содержит трубку, расширитель и один или более токопроводящих элементов. Трубка выполнена с возможностью введения в прямую кишку. Расширитель выполнен с возможностью размещения на дистальном конце трубки и с возможностью механического расширения после введения трубки. Один или более токопроводящих элементов настроены, чтобы принимать данные магнитного резонанса и расположены по меньшей мере на трубке или расширителе или рядом с трубкой и расширителем. 4 н. и 16 з.п. ф-лы, 14 ил.

Elektrochirurgische Vorrichtung in der Umfangrichtung zur Behandlung der Hämorrhoiden

Electrotransfer device and uses thereof

CATHETER BALLOON FOR THERAPEUTIC MODIFICATION AND POSITIONING OF FABRIC

Endoluminal treatment method and associated surgical assembly including tissue occlusion device

ENERGY BASED PARTIAL CIRCUMFERENTIAL HEMORRHOID STAPLER

An energy based partial circumferential hemorrhoid repair device including an actuator assembly, and an energy based partial circumferential hemorrhoid repair device head assembly operatively connected to the actuator assembly, wherein the head assembly includes a proximal electrode assembly and a distal electrode assembly, and further wherein at least one of the electrode assemblies includes an electrode mounted thereon to facilitate sealing of hemorrhoid tissue as the two electrode assemblies are approximated.

CATALYZED EXOTHERMIC ABLATION DEVICE

The invention relates to devices, systems, and methods for heating tissue, including ablating a tumor, using the catalyzed heat of decomposition of hydrogen peroxide solutions. A hydrogen peroxide solution is contacted with a catalyst to decompose the hydrogen peroxide and heat the distal tip of a catheter to a temperature effective to ablate a target tissue.

SYSTEMS AND METHODS FOR TREATING TISSUE WITH RADIOFREQUENCY ENERGY

A system for controlling operation of a radiofrequency treatment device to apply radiofrequency energy to tissue to treat tissue to create lesions without ablating the tissue. The system includes a first treatment device having a plurality of electrodes. The electrodes are maintained in axial alignment and fixed radial spacing in retracted and extended positions. The device includes a basket having a plurality of arms. The arms are maintained in a fixed radial spacing in the collapsed position of the basket.

Elektrochirurgische Vorrichtung in der Umfangrichtung zur Behandlung der Hämorrhoiden

Non-lithotripsic kidney-stone therapy

One aspect of the present invention relates to a method of using peristalsis to force a polymer plug through a mammalian lumen, thereby removing any calculi and/or calculi fragments present in the lumen. In one embodiment, the method is used as an alternative to conventional lithotripsy. In another embodiment, the method is used in conjunction with lithotripsy, thereby removing the small calculi fragments that result from such procedures.

Methods of determining tissue viability

METHODS OF DETERMINING TISSUE VIABILITY A method of performing a surgical procedure includes generating an infrared image of tissue using a thermographic camera, analyzing the infrared images to determine blood flow characteristics of the tissue, and resecting a portion of the tissue determined to have abnormal blood flow characteristics. C)U- ...

SURGICAL STAPLING DEVICE

A surgical stapling device an elongated body portion having proximal and distal portions, and a head portion positioned adjacent the distal portion of the elongated body portion. The head portion includes a shell assembly and an anvil assembly movable relative to the shell assembly between un-approximated and approximated positions. The anvil assembly includes a center rod and an anvil head connected to the center rod. The center rod includes at least one aperture extending transversely therethrough and configured and dimensioned to receiv e a flexible member such that the flexible member extends transversely through the center rod.

DUAL-FUNCTION PLASMA AND NON-IONISING MICROWAVE COAGULATING ELECTROSURGICAL INSTRUMENT AND ELECTROSURGICAL APPARATUS INCORPORATING THE SAME

An electrosurgical device that is capable of both generating a plasma to perform surface coagulation and emitting a non-ionising microwave field (in the absence of plasma) to perform coagulation at a deeper level. The device comprises a probe tip that is connected to receive radiofrequency (RF) and/or microwave frequency energy from a generator, and also defines a flow path for a gas. The probe tip is adjustable between a first configuration, in which it defines a bipolar (e.g. coaxial) structure to produce a high electric field from the received RF and/or microwave frequency energy across the flow path for the gas to strike and sustain plasma and a second configuration, in which it defines an antenna structure to emit non-ionising microwave energy into tissue.

NON-LITHOTRIPSIC KIDNEY-STONE THERAPY

One aspect of the present invention relates to a method of using peristalsis to force a polymer plug through a mammalian lumen, thereby removing any calculi and/or calculi fragments present in the lumen. On one embodiment, the method is used as an alternative to conventional lithotripsy. In another embodiment, the method is used in conjunction with lithotripsy, thereby removing the small calculi fragments that result from such procedures.

HEMORRHOIDS REMEDY APPARATUS

The present invention provides a conductive wire connected to a needle allowing current to be flow therein, and a hemorrhoid treatment device in which blood vessels forming hemorrhoids are ligated and tightened using the conductive wire, and then electric current is applied to the conductive wire so as to coagulate and excise the hemorrhoids-forming blood vessels. During the hemorrhoidal surgery using the inventive hemorrhoids remedy apparatus, since a process of burning the affected blood vessels follows a step of excising the affected blood vessels using the high-frequency current, the excised blood vessels are prevented from being re-fused and regenerated. In addition, any external wound does not exist except the excised blood vessels, and no bleeding occurs, thereby alleviating a pain. Since an exposed wound does not exist, the need for hospitalization medical treatment is eliminated, no secondary bleeding appears and the rectal mucous membrane does not damaged, thereby a reduction ...

Energy based partial circumferential hemorrhoid repair device

An energy based partial circumferential hemorrhoid repair device including an actuator assembly, and an energy based partial circumferential hemorrhoid repair device head assembly operatively connected to the actuator assembly, wherein the head assembly includes a proximal electrode assembly and a distal electrode assembly, and further wherein at least one of the electrode assemblies includes an electrode mounted thereon to facilitate sealing of hemorrhoid tissue as the two electrode assemblies are approximated.

Methods of determining tissue viability

A method of performing a surgical procedure includes generating an infrared image of tissue using a thermographic camera, analyzing the infrared images to determine blood flow characteristics of the tissue, and resecting a portion of the tissue determined to have abnormal blood flow characteristics.

Catheter with a double balloon structure to generate and apply an ablative zone to tissue

Ablation catheters and systems include coaxial catheter shafts with an inner lumen for delivering an ablative agent and an outer lumen for circulation of a cooling element about the catheter. Induction heating is used to heat a chamber and vaporize a fluid within by wrapping a coil about a ferromagnetic chamber and providing an alternating current to the coil. A magnetic field is created in the area surrounding the chamber which induces electric current flow in the chamber, heating the chamber and vaporizing the fluid inside. Positioning elements help maintain the device in the proper position with respect to the target tissue and also prevent the passage of ablative agent to normal tissues.

ЭНДОРЕКТАЛЬНАЯ КАТУШКА ДЛЯ ПРЕДСТАТЕЛЬНОЙ ЖЕЛЕЗЫ С ОТКРЫТЫМ ДОСТУПОМ ДЛЯ ХИРУРГИЧЕСКИХ ИНСТРУМЕНТОВ

... 1. Эндоректальная катушка, содержащая:трубку, выполненную с возможностью введения в прямую кишку;расширитель, выполненный с возможностью расположения на дистальном конце трубки и механического расширения для сжатия окружающей ткани после введения трубки; иодин или более токопроводящих элементов, настраиваемых для приема данных магнитного резонанса, расположенных по меньшей мере на одном из трубки, расширителя и рядом с трубкой и расширителем; иодин или более хирургических инструментов, выполненных с возможностью развертывания из эндоректальной катушки.2. Эндоректальная катушка по п. 1, в которой расширитель дополнительно по меньшей мере:прикреплен к одному концу трубки в сжатом состоянии; и/иливыполнен с возможностью введения через трубку в сжатом состоянии.3. Эндоректальная катушка по п. 1, в которой расширитель механически расширяется и/или сжимается, используя по меньшей мере одно из:боуденовского троса;штыря.4. Эндоректальная катушка по п. 1, в которой расширитель включает в себя:множество ...

Endoluminal treatment method and associated surgical assembly including tissue occlusion device

A surgical instrument includes a hollow member having a sidewall provided with a window and a closure member movably connected to the hollow member for alternately covering and uncovering the window. The hollow member has a first clamping surface along an edge of the window, while the closure member has a second clamping surface opposing the first clamping surface and disposable substantially adjacent thereto in a clamping or closure configuration of the instrument. The instrument additionally comprises a tissue occlusion component mounted to at least one of the hollow member and the closure member for acting on tissues gripped between the first clamping surface and the second clamping surface, to couple the tissues to each other.

Energy based partial circumferential hemorrhoid repair device

Systems and methods for ablative treatment of irritable bowel disease

Methods, systems, and devices are described for treating diseases of the gastrointestinal tract, including ulcerative colitis, by delivering ablative energy to a tissue surface of the gastrointestinal tract and ablating the tissue to a controlled depth. Ablating the tissue may include removing a biofilm layer or coagulating tissue. P309668_16179130_1 110 E] E] ...

DUAL-FUNCTION PLASMA AND NON-IONISING MICROWAVE COAGULATING ELECTROSURGICAL INSTRUMENT AND ELECTROSURGICAL APPARATUS INCORPORATING THE SAME

An electrosurgical device that is capable of both generating a plasma to perform surface coagulation and 5 emitting a non-ionising microwave field (in the absence of plasma) to perform coagulation at a deeper level. The device comprises a probe tip that is connected to receive radiofrequency (RF) and/or microwave frequency energy from a generator, and also defines a flow path for a gas. The probe 10 tip is adjustable between a first configuration, in which it defines a bipolar (e.g. coaxial) structure to produce a high electric field from the received RF and/or microwave frequency energy across the flow path for the gas to strike and sustain plasma and a second configuration, in which it defines an 15 antenna structure to emit non-ionising microwave energy into tissue. gCo Fg. 12A3 Fig. 12 Fig, 13 Fig. 14 ...

SURGICAL STAPLING DEVICE

A surgical stapling device comprises an elongated body portion having proximal and distal portions and a head portion positioned adjacent the distal portion of the body portion. The head portion includes a shell assembly and an anvil assembly movable relative to the shell assembly between un-approximated and approximated positions. The anvil assembly includes an anvil head and a center rod extending from the anvil head, the center rod includes a first annular engagement member and a second annular engagement member spaced distally from the first annular engagement member, and a drive screw with proximal and distal ends extending at least partially through the body portion and an anvil retainer with proximal and distal ends, the anvil retainer being operably connected to the drive screw and configured and dimensioned to at least partially receive the center rod, wherein the drive screw moves the anvil assembly between the un-approximated and approximated positions, the first annular engagement ...

SYSTEMS AND METHODS FOR TREATING TISSUE WITH RADIO FREQUENCY ENERGY

A system for controlling operation of a radiofrequency treatment device to apply radiofrequency energy to tissue to heat tissue to create lesions without ablating the tissue. The system includes a first treatment device having at least one electrode for applying radiofrequency energy to tissue, a controller including a connector to which a first treatment device is coupled for use, and a generator for applying radiofrequency energy to the electrodes. The controller controls application of energy so that the tissue is thermally treated to create lesions but preventing thermal treatment beyond a threshold which would ablate the tissue.

SURGICAL STAPLING DEVICE

A surgical stapling device an elongated body portion having proximal and distal portions, and a head portion positioned adjacent the distal portion of the elongated body portion. The head portion includes a shell assembly and an anvil assembly movable relative to the shell assembly between un-approximated and approximated positions. The anvil assembly includes a center rod and an anvil head connected to the center rod. The center rod includes at least one aperture extending transversely therethrough and configured and dimensioned to receive a flexible member such that the flexible member extends transversely through the center rod.

METHOD AND SYSTEM FOR TREATING HEMORRHOIDS

A system and method for treating hemorrhoids includes an anoscope assembly and a treatment probe. The anoscope assembly includes an elongated anoscope body and a sliding element. The anoscope body is insertable into the rectum of a patient. A main portion of the anoscope body has a longitudinal slot that functions as a window opening to trap hemorrhoids. A proximal portion of the anoscope body has handles thereon manipulatable by a user to adjust the cross-sectional area of the proximal portion. The sliding element is configured to slide through the proximal portion and through the longitudinal slot when the cross-sectional area of the proximal portion is sufficiently increased by a user by manipulation of the handles. Access and secure placement of the sliding element within the longitudinal slot is provided. The treatment probe operably connected to the anoscope assembly is configured to provide energy to a hemorrhoid during treatment.

Dual-function plasma and non-ionising microwave coagulating electrosurgical instrument and electrosurgical apparatus incorporating the same

CATHETER BASED BALLOON FOR THERAPY MODIFICATION AND POSITIONING OF TISSUE

DEVICE, SYSTEM AND METHOD FOR TREATING SWOLLEN VASCULAR STRUCTURES

The present invention describes device, method and system for providing treatment for swollen vascular structures located in a body canal of a patient. The device, method and system described in here provide an easy and, practical treatment and with minimal or without disturb to the patient, including RF emission driven directly and specifically over such vascular structure, and by means of ultrasound technology verify the position of the vascular structure and whether it is closed before, during and after the RF application. The present invention is situated in the field of medical science, more precisely in treatment of vascular structures, and medical devices.

Systems and methods for treating hemorrhoids

Systems and methods treat hemorrhoids by introducing a treatment device into the anal canal to extend above a hemorrhoidal plexus and adjacent a tissue region containing blood vessels that feed the hemorrhoidal plexus. The systems and methods operate the treatment device to affect tissue morphology in the tissue region to occlude or otherwise reduce blood flow through the vessels.

Non-invasive radio-frequency ablation system

An ablation device of a non-invasive radio-frequency ablation system includes a substrate having a first surface; a first electrode disposed on the first surface; a second electrode disposed on the first surface and adjacent to the first electrode; a moving unit electrically connected to the second electrode for moving the second electrode to regulate the distance between the second electrode and the first electrode; and a radio frequency generator connected to the ablation device for providing a radio frequency current to the first electrode and the second electrode. According to a method using the ablation device, the first and second electrodes are brought into contact with a third surface belonging to a subject in need of treatment, and the radio frequency current is applied to the electrodes to carry out a treatment procedure. The treatment depth and area are adjusted by changing the relative distance between the electrodes.

Surgical stapling device

A gentle hemorrhoid treatment offering a substantially painless healing

The teachings provided herein are directed to a methods and devices for treating a hemorrhoid in a subject in a manner that produces substantially less post-procedural pain in the subject, the method minimizing or avoiding a removing or a necrosis of a rectal tissue fold.

Regulating organ and tumor growth rates, function, and development

A system for controlled neuromodulation procedures is disclosed. A system for controlled micro ablation procedures is disclosed. Systems and methods for imaging, monitoring, stimulating, and/or ablating neurological structures coupled to one or more organs of the lower urinary tract (LUT) are disclosed. Such processes may be used to alter the hormonal secretions from one or more organs, to modulate the growth of an organ, alter the growth rate or rate of perineural invasion of a tumor, or the like. In particular such processes may be used to slow, halt and/or reverse the growth of a prostate gland or a prostate tumor.

A GENTLE HEMORRHOID TREATMENT OFFERING A SUBSTANTIALLY PAINLESS HEALING

The teachings provided herein are directed to a methods and devices for treating a hemorrhoid in a subject in a manner that produces substantially less post-procedural pain in the subject, the method minimizing or avoiding a removing or a necrosis of a rectal tissue fold.

DUAL-FUNCTION PLASMA AND NON-IONISING MICROWAVE COAGULATING ELECTROSURGICAL INSTRUMENT AND ELECTROSURGICAL APPARATUS INCORPORATING THE SAME

An electrosurgical device that is capable of both generating a plasma to perform surface coagulation and emitting a non-ionising microwave field (in the absence of plasma) to perform coagulation at a deeper level. The device comprises a probe tip that is connected to receive radiofrequency (RF) and/or microwave frequency energy from a generator, and also defines a flow path for a gas. The probe tip is adjustable between a first configuration, in which it defines a bipolar (e.g. coaxial) structure to produce a high electric field from the received RF and/or microwave frequency energy across the flow path for the gas to strike and sustain plasma and a second configuration, in which it defines an antenna structure to emit non-ionising microwave energy into tissue.

DEVICE OF RADIOTHERAPY ENDOCAVITAIRE OF RECTAL CANCER

수술용 레이저 창

... 적층형 레이저 창은 3.5마이크로미터 내지 12마이크로미터의 파장을 갖는 광이 투과하는 내층; 창의 외부 표면을 구성하는 나노미터 두께의 SiO2 외층을 포함한다. 이에 따라 상기 창은 상기 파장을 갖는 광, 예를 들어 CO2 레이저로부터의 광의 통과를 허용하도록 구성된다. 외부에서 접근 가능한 체강 안으로 삽입되는 레이저 장지에 사용될 때 SiO2 외층은 생체 적합성을 유지한다.

Window for surgical laser

AUTOMATED IMAGE-GUIDED TISSUE RESECTION AND TREATMENT

A system to treat a patient comprises a user interface that allows a physician to view an image of tissue to be treated in order to develop a treatment plan to resect tissue with a predefined removal profile. The image may comprise a plurality of images, and the planned treatment is shown on the images. The treatment probe may comprise an anchor, and the image shown on the screen may have a reference image marker shown on the screen corresponding to the anchor. The planned tissue removal profile can be displayed and scaled to the image of the target tissue of an organ such as the prostate, and the physician can adjust the treatment profile based on the scaled images to provide a treatment profile in three dimensions. The images shown on the display may comprise segmented images of the patient with treatment plan overlaid on the images.

Endorectal prostate coil with open access for surgical instruments

An endorectal coil (1) includes a tube (40), a spreader (44), and one or more electrically conductive elements (64). The tube (40) is configured for insertion into the rectum (42). The spreader (44) is configured to be positioned at a distal end of the tube (40) and mechanically spread to compress surrounding tissue after the tube (40) is inserted. The one or more electrically conductive elements (64) are tuned to receive magnetic resonance data disposed on at least one of the tube (40), the spreader (44), and adjacent the tube and spreader.

Non-lithotripsic kidney-stone therapy

One aspect of the present invention relates to a method of using peristalsis to force a polymer plug through a mammalian lumen, thereby removing any calculi and/or calculi fragments present in the lumen. In one embodiment, the method is used as an alternative to conventional lithotripsy. In another embodiment, the method is used in conjunction with lithotripsy, thereby removing the small calculi fragments that result from such procedures.

BLADDER DENERVATION FOR TREATING OVERACTIVE BLADDER

A device and method for transvaginal or transrectal treatment of a bladder pathology. The device includes an elongate body that includes a longitudinal axis, a handle at one end of the body, a head at the other end of the body, and a shaft between the handle and the head. The head includes a substantially flat surface and one or more retractable needle electrodes extending through the flat surface. The method includes inserting a probe into a vagina or rectum of a patient, where the probe includes a head portion comprising one or more retractable needle electrodes; heating one or more pelvic nerves supplying the patient's bladder by emitting radiofrequency energy from the one or more needle electrodes; and as a result of the heating, damaging the one or more pelvic nerves.

Dual-function plasma and non-ionising microwave coagulating electrosurgical instrument and electrosurgical apparatus incorporating the same

An electrosurgical instrument generates a plasma to perform surface coagulation and emits a non-ionising microwave field (in the absence of plasma) to perform coagulation within tissue. A probe tip 510 is connected to a coaxial cable 502 to receive radio frequency and/or microwave energy from a generator, with a first electrode connected to the inner conductor of the cable and a second electrode connected to the outer conductor. A sheath 514 surrounds the cable and provides a passage 516 for gas. The probe tip is adjustable between a first, bipolar configuration to strike and sustain plasma, and a second configuration in which the first electrode is displaced distally to act as a monopole antenna to emit non-ionising microwave energy into tissue. The instrument may be used with a microwave signal detector for sampling forward and reflected power to indicate the microwave power delivered by the probe. The electrode configuration may be adjusted by a stepper motor or piezoelectric actuator ...

DUAL-FUNCTION PLASMA AND NON-IONISING MICROWAVE COAGULATING ELECTROSURGICAL INSTRUMENT AND ELECTROSURGICAL APPARATUS INCORPORATING THE SAME

An electrosurgical device that is capable of both generating a plasma to perform surface coagulation and 5 emitting a non-ionising microwave field (in the absence of plasma) to perform coagulation at a deeper level. The device comprises a probe tip that is connected to receive radiofrequency (RF) and/or microwave frequency energy from a generator, and also defines a flow path for a gas. The probe 10 tip is adjustable between a first configuration, in which it defines a bipolar (e.g. coaxial) structure to produce a high electric field from the received RF and/or microwave frequency energy across the flow path for the gas to strike and sustain plasma and a second configuration, in which it defines an 15 antenna structure to emit non-ionising microwave energy into tissue. sic Fig. 12A Sol. Fig. 126 goo Fig, 13 Gig 14 Fig. 14 ...

Dual-function plasma and non-ionising microwave coagulating electrosurgical instrument and electrosurgical apparatus incorporating the same

An electrosurgical device that is capable of both generating a plasma to perform surface coagulation and emitting a non-ionising microwave field (in the absence of plasma) to perform coagulation at a deeper level. The device comprises a probe tip that is connected to receive radiofrequency (RF) and/or microwave frequency energy from a generator, and also defines a flow path for a gas. The probe tip is adjustable between a first configuration, in which it defines a bipolar (e.g. coaxial) structure to produce a high electric field from the received RF and/or microwave frequency energy across the flow path for the gas to strike and sustain plasma and a second configuration, in which it defines an antenna structure to emit non-ionising microwave energy into tissue.

Infrared coagulator with disposable tip light guide

Dual-function plasma and non-ionising microwave coagulating electrosurgical instrument and electrosurgical apparatus incorporating the same

An electrosurgical device that is capable of both generating a plasma to perform surface coagulation and emitting a non-ionising microwave field (in the absence of plasma) to perform coagulation at a deeper level. The device comprises a probe tip that is connected to receive radiofrequency (RF) and/or microwave frequency energy from a generator, and also defines a flow path for a gas. The probe tip is adjustable between a first configuration, in which it defines a bipolar (e.g. coaxial) structure to produce a high electric field from the received RF and/or microwave frequency energy across the flow path for the gas to strike and sustain plasma and a second configuration, in which it defines an antenna structure to emit non-ionising microwave energy into tissue.

Non-lithotripsic kidney-stone therapy

NON-LITHOTRIPSIC KIDNEY-STONE THERAPY

One aspect of the present invention relates to a method of using peristalsis to force a polymer plug through a mammalian lumen, thereby removing any calculi and/or calculi fragments present in the lumen. On one embodiment, the method is used as an alternative to conventional lithotripsy. In another embodiment, the method is used in conjunction with lithotripsy, thereby removing the small calculi fragments that result from such procedures.

ENERGY BASED PARTIAL CIRCUMFERENTIAL HEMORRHOID STAPLER

An energy based partial circumferential hemorrhoid repair device including an actuator assembly, and an energy based partial circumferential hemorrhoid repair device head assembly operatively connected to the actuator assembly, wherein the head assembly includes a proximal electrode assembly and a distal electrode assembly, and further wherein at least one of the electrode assemblies includes an electrode mounted thereon to facilitate sealing of hemorrhoid tissue as the two electrode assemblies are approximated.

REGULATING ORGAN AND TUMOR GROWTH RATES, FUNCTION, AND DEVELOPMENT

A system for controlled neuromodulation procedures is disclosed. A system for controlled micro ablation procedures is disclosed. Systems and methods for imaging, monitoring, stimulating, and/or ablating neurological structures coupled to one or more organs of the lower urinary tract (LUT) are disclosed. Such processes may be used to alter the hormonal secretions from one or more organs, to modulate the growth of an organ, alter the growth rate or rate of perineural invasion of a tumor, or the like. In particular such processes may be used to slow, halt and/or reverse the growth of a prostate gland or a prostate tumor.

A GENTLE HEMORRHOID TREATMENT OFFERING A SUBSTANTIALLY PAINLESS HEALING

The teachings provided herein are directed to a methods and devices for treating a hemorrhoid in a subject in a manner that produces substantially less post-procedural pain in the subject, the method minimizing or avoiding a removing or a necrosis of a rectal tissue fold.

APPARATUS AND METHOD FOR EFFECTING AT LEAST ONE ANATOMICAL STRUCTURE

Exemplary embodiments of apparatus and method for effecting at least one anatomical structure of a body can be provided. For example, at least one first arrangement can be provided which is structured to be at least partially inserted into the body and including an opening. In addition, at least one second arrangement can be provided which configured to increase and/or decrease a size of the opening by a motion thereof in a first direction. Further, at least one third arrangement can be provided which can be coupled to the second arrangement(s), and configured to move at least in a second direction which is at least approximately parallel to the second direction. In particular, when the anatomical structure(s) is/are provided or inserted in the opening and is pressed on by the second arrangement(s), a first motion of the second arrangement(s) toward the anatomical structure(s) in the first direction is reduced and/or terminated while a second motion of the third arrangement(s) in the second ...

신장 결석의 비석쇄 치료법

... 본 발명의 한 양태는 포유동물 루멘을 통해 중합체 플러그를 연동운동에 의해 이동시켜 루멘에 존재하는 임의의 결석 및/또는 결석 단편을 제거하는 방법에 관한 것이다. 한 구체예에서, 본 방법은 통상적인 석쇄술에 대한 대안으로서 사용된다. 또 다른 양태에서, 본 방법은 석쇄술과 함께 사용되어 석쇄술로부터 생성된 작은 결석 단편을 제거한다.

SYSTEMS AND METHODS FOR TREATING TISSUE WITH RADIO FREQUENCY ENERGY

A system for controlling operation of a radiofrequency treatment device to apply radiofrequency energy to tissue to heat tissue to create lesions without ablating the tissue. The system includes a first treatment device having at least one electrode for applying radiofrequency energy to tissue, a controller including a connector to which a first treatment device is coupled for use, and a generator for applying radiofrequency energy to the electrodes. The controller controls application of energy so that the tissue is thermally treated to create lesions but preventing thermal treatment beyond a threshold which would ablate the tissue.

AUTOMATED IMAGE-GUIDED TISSUE RESECTION AND TREATMENT

A system to treat a patient comprises a user interface that allows a physician to view an image of tissue to be treated in order to develop a treatment plan to resect tissue with a predefined removal profile. The image may comprise a plurality of images, and the planned treatment is shown on the images. The treatment probe may comprise an anchor, and the image shown on the screen may have a reference image marker shown on the screen corresponding to the anchor. The planned tissue removal profile can be displayed and scaled to the image of the target tissue of an organ such as the prostate, and the physician can adjust the treatment profile based on the scaled images to provide a treatment profile in three dimensions. The images shown on the display may comprise segmented images of the patient with treatment plan overlaid on the images.

Surgical stapling device

A surgical stapling device an elongated body portion having proximal and distal portions, and a head portion positioned adjacent the distal portion of the elongated body portion. The head portion includes a shell assembly and an anvil assembly movable relative to the shell assembly between un-approximated and approximated positions. The anvil assembly includes a center rod and an anvil head connected to the center rod. The center rod-includes at least one aperture extending transversely therethrough and configured and dimensioned to receive a flexible member such that the flexible member extends transversely through the center rod.

KATHETERBALLON ZUR THERAPEUTISCHEN MODIFIKATION UND POSITIONIERUNG VON GEWEBE

Electrosurgical apparatus

ENDOLUMINAL TREATMENT METHOD AND ASSOCIATED SURGICAL ASSEMBLY INCLUDING TISSUE OCCLUSION DEVICE

METHODS OF DETERMINING TISSUE VIABILITY

A method of performing a surgical procedure includes generating an infrared image of tissue using a thermographic camera, analyzing the infrared images to determine blood flow characteristics of the tissue, and resecting a portion of the tissue determined to have abnormal blood flow characteristics.

TISSUE RESECTION DEVICE AND RELATED METHODS OF USE

Embodiments of the present disclosure include a method for treating tissue. The method may include delivering a medical device through a channel of an endoscopic device, wherein the medical device may include an elongate member, a cap coupled to a distal end of the elongate member and having a cavity, and an electrically-conductive tool extending into the cavity of the cap. The method may also include extending a portion of the medical device out of the channel of the endoscopic device and to the tissue, drawing a portion of the tissue into the cavity of the cap, electrically activating the tool to pierce the portion of the tissue, and cutting the tissue by moving the medical device along a plane of the tissue.

Energy based partial circumferential hemorrhoid repair device

An energy based partial circumferential hemorrhoid repair device including an actuator assembly, and an energy based partial circumferential hemorrhoid repair device head assembly operatively connected to the actuator assembly, wherein the head assembly includes a proximal electrode assembly and a distal electrode assembly, and further wherein at least one of the electrode assemblies includes an electrode mounted thereon to facilitate sealing of hemorrhoid tissue as the two electrode assemblies are approximated.

DEVICES FOR TISSUE RESECTION

A device for tissue resection and methods of using the same is disclosed, including a snare loop and a tubular handle. The snare loop has both conductive and insulated portions such that the snare loop can be used to cut tissue selectively to make perimeter cuts on the tissue to be resected. The snare loop may be placed and tightened on a target tissue and may be activated for cutting the tissue to be resected by passing an electrical current through the snare loop. Some embodiments of the device include a hood and cutting wire for making perimeter cuts on the tissue to be resected.

Automated image-guided tissue resection and treatment

A system to treat a patient comprises a user interface that allows a physician to view an image of tissue to be treated in order to develop a treatment plan to resect tissue with a predefined removal profile. The image may comprise a plurality of images, and the planned treatment is shown on the images. The treatment probe may comprise an anchor, and the image shown on the screen may have a reference image marker shown on the screen corresponding to the anchor. The planned tissue removal profile can be displayed and scaled to the image of the target tissue of an organ such as the prostate, and the physician can adjust the treatment profile based on the scaled images to provide a treatment profile in three dimensions. The images shown on the display may comprise segmented images of the patient with treatment plan overlaid on the images.

Endoluminal treatment method and associated surgical assembly

A surgical instrument includes a hollow member having a sidewall provided with a window and a closure member movably connected to the hollow member for alternately covering and uncovering the window. The hollow member has a first clamping surface along an edge of the window, while the closure member has a second clamping surface opposing the first clamping surface and disposable substantially adjacent thereto in a clamping or closure configuration of the instrument. The instrument additionally comprises a tissue occlusion component mounted to at least one of the hollow member and the closure member for acting on tissues gripped between the first clamping surface and the second clamping surface, to couple the tissues to each other.

NON-LITHOTRIPSIC KIDNEY-STONE THERAPY

One aspect of the present invention relates to a method of using peristalsis to force a polymer plug through a mammalian lumen, thereby removing any calculi and/or calculi fragments present in the lumen. On one embodiment, the method is used as an alternative to conventional lithotripsy. In another embodiment, the method is used in conjunction with lithotripsy, thereby removing the small calculi fragments that result from such procedures.

Painless provide obvious for the treatment of hemorrhoids venial

이중-기능 플라스마 및 비-이온화 마이크로파 응고 전기 수술 기기 및 이를 포함하는 전기 수술 장치

... 표면 응고를 수행하는 플라스마를 생성하고 더 깊은 레벨에서 응고를 수행하는 비-이온화 마이크로파 장(플라스마의 부재 시)을 방출할 수 있는 전기 수술 디바이스. 상기 디바이스는, 생성기로부터 무선주파수(RF) 및/또는 마이크로파 주파수 에너지를 수신하도록 연결되고 또한 가스 흐름 경로를 한정하는 프로브 첨단을 포함한다. 상기 프로브 첨단은 가스 흐름 경로에 걸쳐 수신된 RF 및/또는 마이크로파 주파수 에너지로부터 높은 전계를 생성하여 플라스마를 점화하여 유지하는 2극(예를 들어 동축) 구조물을 한정하는 제1 구성과, 비-이온화 마이크로파 에너지를 조직으로 방출하는 안테나 구조물을 한정하는 제2 구성 사이에서 조절가능하다.

SYSTEMS AND METHODS FOR TREATING HEMORRHOIDS

System and methods treat hemorrhoids by introducing a treatment device into the anal canal to extend above a hemorrhoidal plexus and adjacent a tissue region containing blood vessels that feed the hemorrhoidal plexus. The systems and methods operate the treatment device to affect tissue morphology in the tissue region to occlude or otherwise reduce blood flow through the vessels.

Gentle hemorrhoid treatment offering a substantially painless healing

The teachings provided herein are directed to a methods and devices for treating a hemorrhoid in a subject in a manner that produces substantially less post-procedural pain in the subject, the method minimizing or avoiding a removing or a necrosis of a rectal tissue fold.

MICROWAVE TREATMENT DEVICES AND METHODS

The present invention discloses medical systems and methods adapted for the delivery of various medical components such as microwave antennas within or on a body for performing one or more medical procedures. Several embodiments herein disclose medical systems comprising a combination of one or more medical components and one or more elongate steerable or non-steerable arms that are adapted to mechanically manipulate the one or more medical components. Several embodiments of microwave antennas are disclosed that comprise an additional diagnostic or therapeutic modality located on or in the vicinity of the microwave antennas.

Treatment of haemorrhoids

Dual-function plasma and non-ionising microwave coagulating electrosurgical instrument and electrosurgical apparatus incorporating the same

An electrosurgical instrument generates a plasma to perform surface coagulation and emits a non-ionising microwave field to perform coagulation within tissue. A probe tip 510 is connected to a coaxial cable 502 to receive radio frequency and/or microwave energy from a generator, with a first electrode connected to the inner conductor 504 of the cable and a second electrode connected to the outer conductor 506. A sheath 514 surrounds the cable and provides an annular passage 516 for gas. The probe tip is preferably adjustable between a first, bipolar configuration (figure 12A) to strike and sustain plasma, and a second configuration (figure 12B) with the first electrode displaced distally as a monopole antenna. The first electrode is preferably a cylinder of dielectric with a hemispherical end, the inner conductor of the cable running through it and protruding distally. The outer conductor of the cable is connected to the second electrode by an electrically conductive, gas permeable structure ...

A gentle hemorrhoid treatment offering a substantially painless healing

The teachings provided herein are directed to a methods and devices for treating a hemorrhoid in a subject in a manner that produces substantially less post-procedural pain in the subject, the method minimizing or avoiding a removing or a necrosis of a rectal tissue fold.

ENDOLUMINAL TREATMENT METHOD AND ASSOCIATED SURGICAL ASSEMBLY INCLUDING TISSUE OCCLUSION DEVICE

A surgical instrument includes a hollow member having a sidewall provided with a window and a closure member movably connected to the hollow member for alternately covering and uncovering the window. The hollow member has a first clamping surface along an edge of the window, while the closure member has a second clamping surface opposing the first clamping surface and disposable substantially adjacent thereto in a clamping or closure configuration of the instrument. The instrument additionally comprises a tissue occlusion component mounted to at least one of the hollow member and the closure member for acting on tissues gripped between the first clamping surface and the second clamping surface, to couple the tissues to each other.

Endoluminal treatment method and associated surgical assembly including tissue occlusion device

A surgical instrument includes a hollow member having a sidewall provided with a window and a closure member movably connected to the hollow member for alternately covering and uncovering the window. The hollow member has a first clamping surface along an edge of the window, while the closure member has a second clamping surface opposing the first clamping surface and disposable substantially adjacent thereto in a clamping or closure configuration of the instrument. The instrument additionally comprises a tissue occlusion component mounted to at least one of the hollow member and the closure member for acting on tissues gripped between the first clamping surface and the second clamping surface, to couple the tissues to each other.

APPARATUS AND COSMETIC METHOD FOR BODY ORIFICE REMODELING

A body orifice remodeling device includes a cylindrical handpiece having a defined length which is adapted to be inserted into the body orifice and an elongated monopolar electrode mounted outside on the circumference of the cylindrical handpiece and extending substantially along the length of the handpiece. A source of radio frequency (RF) energy in the handpiece is configured to generate RF energy to the elongated monopolar electrode; and a source of electromagnetic stimulation energy (EMagS) in the handpiece is configured to generate (EMagS) energy.

Electrotransfer device and uses thereof

An electrotransfer or electroporation device comprising first 18 and second 20 electrodes mounted to the distal end 12b of an elongate member 12 such that they are movable between a retracted position (Fig 2) and a deployed position (Fig 1). The first 18 and second 20 electrodes are preferably mounted on, and more preferably embedded within, flexible arms 14, 16 which together essentially define a tweezer or pincer shape. A third electrode 22, which preferably takes the form either a needle electrode or another mounted to an arm, may also be provided at the distal end 12b of the elongate member 12, and may be located at the mid-point between the first 18 and second 20 electrodes in a manner whereby the electrodes are arranged in a triangular configuration. The proximal end 12a of the elongate member is further provided with a connection means for operably connecting the electrodes to a controller comprising a single-pulse or multi-pulse generator and a multimeter.

Apparatus and method for effecting at least one anatomical structure

Exemplary embodiments of apparatus and method for effecting at least one anatomical structure of a body can be provided. For example, at least one first arrangement can be provided which is structured to be at least partially inserted into the body and including an opening. In addition, at least one second arrangement can be provided which configured to increase and/or decrease a size of the opening by a motion thereof in a first direction. Further, at least one third arrangement can be provided which can be coupled to the second arrangement(s), and configured to move at least in a second direction which is at least approximately parallel to the second direction. In particular, when the anatomical structure(s) is/are provided or inserted in the opening and is pressed on by the second arrangement(s), a first motion of the second arrangement(s) toward the anatomical structure(s) in the first direction is reduced and/or terminated while a second motion of the third arrangement(s) in the second ...

Devices, systems, and methods for, treating adventitious vascular structures

Устройство для управляемого нагрева тканей, сосудов и полостей человека и животных

1. Устройство, полностью или частично имплантируемое с целью передачи тепла в полость, ткань или сосуды отличающееся тем, что- оно представляет собой медный изолированный провод (1), за исключением концов, по крайней мере, на часть которого устанавливается резистивная трубка (5) обладающая электрическим сопротивлением более 20 мкОм/см,- медный провод (1) на дистальном конце (3) имеет контакт с упомянутой трубкой, в то время как проксимальный конец обладает возможностью быть соединенным с источником тока (9),- трубка покрыта на части своей длины одним подвижным проксимальным цилиндром (6), на проксимальном конце способным быть закрепленным на трубке (5), указанный цилиндр (6) обладает электрическим сопротивлением ниже 20 мкОм/см,- подвижный проксимальный цилиндр (6) и проксимальный конец медного провода (1) способны быть подключенными к источнику тока (9.)2. Устройство по п.1, отличающееся тем, что трубка (5) закреплена на проводе (1), только на дистальном конце указанного провода, на длину в пределах 5 см,3. Устройство по п.1, отличающееся тем, что трубка (5) закреплена микрообжатием,4. Устройство по п.1, отличающееся тем, что оно снабжено подвижными дистальными цилиндрами (7, 8), оснащенными на поверхности пористым носителем, выделяющим активное вещество,5. Устройство по п.1, отличающееся тем, что оно снабжено подвижными дистальными цилиндрами (7, 8), поверхность которых снабжена радиоактивным продуктом для терапии и локализации,6. Устройство по п.1, отличающееся тем, что трубка (5) выполнена из материала, выбранного из группы, включающей сталь, нержавеющую сталь, нитинол или титан,7. Устройство по п.1, отличающееся тем, что медный провод (1) изолир� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 142 663 U1 (51) МПК A61B 18/08 (2006.01) A61F 7/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2012140515/14, 04.03.2011 (24) Дата начала отсчета срока действия патента: 04.03.2011 (72) ...

Method for transurethral delivery of thermal therapy to tissue

An apparatus for applying thermal energy to a prostate gland, comprising a support tube having a longitudinal passageway, a power lead channeled through the longitudinal central passageway and an ultrasound crystal disposed around at least part of the support tube. The ultrasound crystal is coupled to the power lead which provides the power to energize the ultrasound crystal and generate ultrasound energy providing thermal therapy to the prostate gland. The ultrasound crystal further includes inactivated portions for reducing ultrasound energy directed to the rectal wall of the patient. A sealant is disposed in contact with the ultrasound crystal allowing vibration necessary for efficient ultrasound energy radiation for the thermal therapy of the prostate gland.

Laser Assembly With Shock Absorber

Embodiments of the invention include an apparatus including an optical fiber having a distal end configured to emit a beam of energy. The apparatus also includes a tube including a tube channel. The distal end of the optical fiber is disposed in the tube channel. The apparatus further includes a shock absorber disposed on the tube and a cap disposed on the shock absorber.

Sequential Activation RF Electrode Set for Renal Nerve Ablation

A catheter includes a flexible shaft having a length sufficient to access a patient's renal artery. A treatment element at the distal end of the shaft is dimensioned for deployment within the renal artery. The treatment element comprises a radially expandable structure configured to maintain positioning within the renal artery. A multiplicity of electrodes are spaced apart on the treatment element and configured for switchable activation and deactivation in a predetermined sequence to generate overlapping zones of heating directed at perivascular nerves of the renal artery. The overlapping heating zones comprise a distal zone associated with relatively high current densities at a distance from the treatment element sufficient to ablate the perivascular renal nerves and a proximal zone associated with current densities lower than those of the distal zone and insufficient to cause thermal injury to tissue of the renal artery adjacent the treatment element.

Ablation device with articulated imaging transducer

A system for imaging and treating tissue comprises a probe having a deflectable distal tip for carrying an imaging array and a delivery needle for advancement within a field of view of the imaging array. Optionally, the needle will carry a plurality of tines which may be selectively radially deployed from the needle. The imaging array will preferably be provided in a separate, removable component.

Tissue ablation with irreversible electroporation

A new method for the ablation of undesirable tissue such as cells of a cancerous or non-cancerous tumor is disclosed. It involves the placement of electrodes into or near the vicinity of the undesirable tissue through the application of electrical pulses causing irreversible electroporation of the cells throughout the entire area of the undesirable tissue. The electric pulses irreversibly permeate the cell membranes, thereby invoking cell death. The irreversibly permeabilized cells are left in situ and are removed by the body immune system. The amount of tissue ablation achievable through the use of irreversible electroporation without inducing thermal damage is considerable.

Ultrasound-Guided Ablation Method and Ultrasound-Guided Ablation System

An ultrasound-guided ablation method captures an objective area to be ablated in an ultrasound scan area of an ultrasound transducer and delineates the objective area on an ultrasound image; specifies an ablation target area to display the ablation target area with a margin necessary for ablating the objective area on the ultrasound image processed by an ultrasound observation device and displayed on a display device; ablates, by an ablation device, the ablation target area displayed on the ultrasound image; and checks, on the ultrasound image, that an ablated area ablated by the ablation device has reached the ablation target area displayed on the ultrasound image.

Minimally Invasive Rectal Balloon Apparatus

A rectal balloon apparatus has a shaft with a fluid passageway extending therethrough. A balloon is affixed over an end of the shaft such that the fluid passageway communicates with an interior of the balloon. The balloon has a laterally flat surface thereon when inflated. The laterally flat surface of the balloon has a longitudinal groove formed thereon. The balloon having a pair of bulges formed thereon when the balloon is inflated. A ring is affixed to the shaft adjacent the balloon. The shaft has a plurality of holes formed thereon opening to an interior of the balloon.

Guided procedural treatment device and method

A medical device for minimally invasive surgical procedures. The medical device includes an ablative probe for removing malignant tissues from a body. A guidance sleeve encapsulates the ablative probe and facilitates its advancement through an opening in the body. In addition, the device includes an imaging device for monitoring the position of the guidance sleeve and the ablative probe within the body.

Biopsy planning and display apparatus

Systems are provided for managing, planning and displaying the location of biopsy core sites across multiple same-patient visits or other stored biopsy plans to increase the confidence and accuracy of biopsy results. The systems may allow the operator to fuse multiple predefined and/or automatically generated biopsy core site plans in addition to previous biopsy sites with a current prostate image to assist in creating a final new biopsy core site plan. Further, the system may allow the operator to selectively view singular parts of the final plan to simplify the planning process. Further, the systems may assist the operator during the navigation phase of the biopsy by hiding biopsy core sites from the final plan that are not of immediate interest during the biopsy phase and thereby reducing clutter and distraction during biopsy sample acquisition.

High-frequency electroporation for cancer therapy

The present invention relates to the field of biomedical engineering and medical treatment of diseases and disorders. Methods, devices, and systems for in vivo treatment of cell proliferative disorders are provided. In embodiments, the methods comprise the delivery of high-frequency bursts of bipolar pulses to achieve the desired modality of cell death. More specifically, embodiments of the invention relate to a device and method for destroying aberrant cells, including tumor tissues, using high-frequency, bipolar electrical pulses having a burst width on the order of microseconds and duration of single polarity on the microsecond to nanosecond scale. In embodiments, the methods rely on conventional electroporation with adjuvant drugs or irreversible electroporation to cause cell death in treated tumors. The invention can be used to treat solid tumors, such as brain tumors.

Surgical instrument with modular end effector and detection feature

An apparatus comprises a handle assembly, a first transmission assembly, and a second transmission assembly. The first transmission assembly is in selective communication with the handle assembly and is operable to deliver energy to a surgical site. The second transmission assembly is in selective communication with the handle assembly and is operable to deliver energy to a surgical site. The first transmission assembly and the second transmission assembly are operable in different modalities, such as ultrasonic and RF electrosurgical modalities, using the same handle assembly.

Medical device usage data processing

A surgical instrument includes a handle assembly having a lower portion with a hingedly attached end piece. When open, the end piece allows for receipt of a data card in a lower portion aperture. When closed, the end piece covers the aperture. In another version, the aperture is configured to receive a data card and battery pack assembly. Information is readable from and to the data card to measure a number of minutes the instrument was used during a procedure. Such information is communicated via wired or wireless communication to another device to determine a payment for the number of minutes used. Minutes are buyable from the device and writable onto the data card prior to insertion of the card into the instrument. In another version, a testing sequence is used in saline or via a tissue proxy to test the functionality of an instrument prior to a procedure.

Surgical instrument with charging station and wireless communication

An apparatus comprises an electrically power surgical instrument having a handle assembly. The apparatus also comprises a communication device positioned within the handle assembly. The communication device is operable to communicate with at least a portion of the electrically powered surgical instrument. The apparatus further comprises an external device in wireless communication with the communication device. The external device is operable to receive information from the communication device and the external device is operable to provide an output viewable to the user.

Simultaneous ablation by multiple electrodes

Apparatus, including a current source which has a transformer having a primary winding coupled to receive input power. The transformer has a secondary winding having a first plurality of secondary taps configured to supply electrical power at an ablation frequency to an electrode in contact with body tissue. The issue has an impedance, and is ablated by the electrical power. The current source has a second plurality of capacitors. The apparatus also includes a controller which is configured to select one of the secondary taps and at least one of the capacitors in response to the impedance and the ablation frequency, and to connect the selected secondary tap to the selected at least one of the capacitors.

Catheter with liquid-cooled control handle

An electrophysiologic catheter with an improved control handle is provided. The catheter includes a heat transfer assembly to better dissipate heat in the control handle. The heat transfer assembly includes a pump, a reservoir containing a coolant, a heat transfer member, and a coolant transport network transporting coolant between at least the reservoir and the heat transfer member. In one embodiment, the heat transfer member is located within the control handle as a heat exchanger on the circuit board to receive the coolant for transferring heat from the integrated circuits to the coolant. In another embodiment, the heat transfer member is located on the circuit board directly surrounding the integrated circuits to internally cool the integrated circuit within the control handle. A second heat transfer member is located outside of the control handle as a heat exchanger.

Catheter guidance of external energy for renal denervation

An in vivo apparatus includes a flexible shaft having a proximal end, a distal end, and a length sufficient to access a patient's renal artery relative to a percutaneous access location. An energy guide apparatus is provided at the distal end of the shaft and dimensioned for deployment within the renal artery. An ex vivo apparatus includes an arrangement configured to localize the energy guide apparatus within the renal artery, and an energy source configured to direct ablative energy to target tissue located a predetermined distance from the localized energy guide apparatus. The target tissue includes perivascular renal nerve tissue adjacent the renal artery.

Minimally Invasive Access for Renal Nerve Ablation

An elongated flexible medical device is inserted into a patient's body via a natural orifice, and advanced through the natural orifice to a location proximate innervated tissue that influences renal sympathetic nerve activity. The medical device can be advanced into a body organ and to a location within the organ proximate the innervated tissue. The organ may comprise an organ of the gastrointestinal tract or urinary tract. The medical device may be advanced through and beyond an access hole in a wall of the organ, and situated at a location proximate the innervated tissue. One or both of imaging and ablation energy is delivered from a distal end of the medical device to the innervated tissue. Innervated renal tissue can be ablated using various forms of energy, including RF energy, ultrasound energy, optical energy, and thermal energy.

Apparatus, System and Method for Performing an Electrosurgical Procedure

An apparatus for performing a microwave ablation procedure is provided. The apparatus includes a catheter including an open proximal end and a closed distal end configured to percutaneously access tissue. A directional microwave antenna probe adapted to connect to a source of microwave energy selectively couples to the catheter. The directional microwave antenna is rotatable within the catheter for directing the emission of microwave energy therefrom to tissue

Fingertip Electrosurgical Instruments for Use in Hand-Assisted Surgery and Systems Including Same

A fingertip-mountable electrosurgical instrument includes a monopolar electrode capable of directing energy into tissue, and a holder configured to be operably coupled to the monopolar electrode. The holder is also configured to be operably coupled to an energy source. The holder includes a housing body and one or more attachment members coupled to the housing body. The one or more attachment members are configured to be removeably attachable to a user's finger. The housing body includes a distal end and a proximal end. The monopolar electrode is mechanically coupled to the distal end of the housing body.

Method and apparatus for performing transesophageal cardiovascular procedures

An apparatus for performing a transesophageal cardiovascular procedure includes an elongated tubular main access device having a first lumen with an open proximal end and a distal side opening, and a second lumen with a rigid outer wall and a collapsible inner wall. The second lumen is adapted to receive an elongated probe or surgical device. The apparatus further includes an inflatable sealing means on the outside of the main access device above and below the side opening, and a first fluid conduit extending along the main access device for inflating the sealing means so that when the main access device is inserted into a patient's esophagus and the sealing means are inflated. The portion of the esophagus opposite the side opening is isolated from the remainder of the esophagus above and below the side opening.

Bipolar medical devices for extracting tissue and methods therefor

A bipolar medical device for extracting tissue including a handle, and an outer tube projecting from the handle, the outer tube extending along a longitudinal axis and including a proximal end connected with the housing and a distal end spaced from the proximal end. The medical device includes a split tube disposed within the outer tube, the split tube having a distal end including a first cutting element and an opposing second cutting element, a motor coupled with the split tube for selectively rotating the split tube and the first and second cutting elements about the longitudinal axis, and an electrosurgical generator coupled with the split tube, whereby the first cutting element is connectable with a first pole of the electrosurgical generator and the second element is connectable with a second pole of the electrosurgical generator for passing electrical current between the first and second cutting elements.

System for controlling tissue ablation using temperature sensors

Body tissue ablation is carried out by inserting a probe into a body of a living subject, urging the probe into contact with a tissue in the body, generating energy at a power output level, and transmitting the generated energy into the tissue via the probe. While transmitting the generated energy the ablation is further carried out by determining a measured temperature of the tissue and a measured power level of the transmitted energy, and controlling the power output level responsively to a function of the measured temperature and the measured power level. Related apparatus for carrying out the ablation is also described.

Global endometrial ablation device

An endometrial ablation apparatus is provided which includes an end member with a plurality of electrodes. The probe is attached to a controller that includes a multiplexer capable of activating each electrode individually or multiple electrodes simultaneously, such that each individual electrode may be energized separately in series to complete the ablation process. A method of performing ablation using such an apparatus is also provided.

System and method for endoluminal and translumenal therapy

A system for conducting a denervation of the neural plexus adjacent the renal artery of a patient comprises a first elongate member operatively coupled to a testing element, a second elongate member having a distal portion coupled to an ablative element, and a controller configured to: activate an ablative element to selectively denervate a portion of the neural plexus which is positioned adjacent the ablative element; monitor a level of a compound in blood sampled from the testing element of the first elongate member; and modulate the activation of the ablative element based at least in part upon the level of renin monitored using the testing element.

Dental Cleaning Device

An electric toothbrush with a removable brush section having a transponder communicating with a handle portion of the toothbrush via a non-contacting inductive coupling.

Systems, assemblies, and methods for treating a bronchial tree

Systems, assemblies, and methods to treat pulmonary diseases are used to decrease nervous system input to distal regions of the bronchial tree within the lungs. Treatment systems damage nerve tissue to temporarily or permanently decrease nervous system input. The treatment systems are capable of heating nerve tissue, cooling the nerve tissue, delivering a flowable substance that cause trauma to the nerve tissue, puncturing the nerve tissue, tearing the nerve tissue, cutting the nerve tissue, applying pressure to the nerve tissue, applying ultrasound to the nerve tissue, applying ionizing radiation to the nerve tissue, disrupting cell membranes of nerve tissue with electrical energy, or delivering long acting nerve blocking chemicals to the nerve tissue.

Devices and methods for treatment of luminal tissue

Devices and methods are provided for treatment of tissue in a body lumen with an electrode deployment device. Embodiments typically include a device with a plurality of electrodes having a pre-selected electrode density arranged on the surface of a support. The support may comprise a non-distensible electrode backing that is spirally furled about an axis and coupled to an expansion member such as an inflatable elastic balloon. In some embodiments, the balloon is inflated to selectively expose a portion of the electrode surface while maintaining the electrode density.

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.

Magnetically guided catheters

A magnetically-guided catheter 100 includes a tip positioning magnet in the distal electrode assembly configured to interact with externally applied magnetic fields for magnetically-guided movement. A magnetically-guided mapping catheter 100 includes an electrically-conductive capsule in the form of a casing 146 that includes a distal ablation surface and isolates the positioning magnet from bio-fluids to prevent corrosion. An open irrigation ablation catheter includes an isolated manifold that isolates the positioning magnet from contact with irrigation fluid to prevent corrosion.

Electrical ablation devices and methods

An ablation apparatus may generally comprise an elongated body having a proximal end and a distal end and a non-conductive tip at the distal end, a conductive sheath at least partially surrounding a portion of the elongated body intermediate the proximal end and the tip, and an electrical conductor electrically connected to the conductive sheath. The ablation apparatus may comprise a first electrode having a first diameter and a plurality of second electrodes each having a second diameter, wherein the first diameter is greater than the second diameter. Methods of using the ablation apparatus are also described.

Electrosurgical device with internal digestor electrode

An electrosurgical wand is described, for treating a target tissue using electrosurgical energy, which has an elongate shaft with a handle end and a distal end. A first active electrode surface is disposed on the distal end of the shaft and a first digester electrode surface is recessed away from the first active electrode surface and electrically connected with the first active electrode surface. An aspiration aperture is also disposed adjacent the first active electrode surface and fluidly connected with an aspiration lumen, wherein the first digester electrode surface is disposed within the aspiration lumen.

Surgical device and accessories

The present invention relates to a device developed for surgical interventions comprising (i) an inner end ( 1 ) guidable/steerable to the operation field, (ii) an outer end ( 3 ) operated by the user and (iii) a middle part ( 2 ) which connects both ends ( 1, 3 ) together. According to the main concept of the present invention, it further comprises force transmission units extending between the outer ( 3 ) and the inner ( 1 ) ends, and said force transmission units, the outer and the inner ends and the middle part ( 2 ) are designed to transfer the movements of the outer end ( 3 ) to the inner end ( 1 ) in an identical measure, as if the inner end ( 1 ) were the straight continuation of the outer end ( 3 ).

System and method for renal artery occlusion during renal denervation therapy

A catheter includes a flexible shaft having a length sufficient to access a patient's renal artery relative to a percutaneous access location. A treatment arrangement is provided at a distal end of the shaft and configured for deployment in the renal artery. The treatment arrangement includes an ablation arrangement configured to deliver renal denervation therapy. An occlusion arrangement is configured for deployment in the renal artery and for altering blood flow through the renal artery during or subsequent to renal denervation therapy delivery. A monitoring unit is configured for monitoring for a change in one or more physiologic parameters influenced by the renal denervation therapy. The monitoring unit is configured to produce data useful in assessing effectiveness of the renal denervation therapy based on the physiologic parameter monitoring.

System and method for endometrial ablation

Methods, systems and devices for evaluating the integrity of a uterine cavity. A method comprises introducing transcervically a probe into a patient's uterine cavity, providing a flow of a fluid (e.g., CO 2 ) through the probe into the uterine cavity and monitoring the rate of the flow to characterize the uterine cavity as perforated or non-perforated based on a change in the flow rate.

Nerve treatment system

In some examples, nerves surrounding arteries or leading to organs are targeted with energy sources to correct or modulate physiologic processes. In some examples, different types of energy sources are utilized singly or combined with one another. In some examples, bioactive agents or devices activated by the energy sources are delivered to the region of interest and the energy is enhanced by such agents or the agents are enhanced by the energy sources.

Temperature Based Ablation Completeness Algorithm

A system and method for determining completion of an ablation procedure is provided. An electrosurgical generator provides an electrosurgical energy source to an electrode probe assembly. The generator is connected to a thermal feedback assembly that includes at least one temperature sensor assembly. The generator includes a computer configured to (1) measure a time of energy delivered to the target tissue, (2) receive a temperature reading from the thermal feedback assembly, (3) estimate a size of an ablation volume based on the temperature reading, a distance between the electrode probe assembly and each temperature sensor assembly, and the measured time, (4) calculate a growth rate of the ablation volume based on the estimated size. The computer may also determine the ablation procedure is complete when the growth rate is less than or equal to a threshold.

Control System and Method for Precisely Guiding a Percutaneous Needle Toward the Prostate

A needle holder device for treating the prostate, involving a series of steps of inserting a needle into the prostate, has a rectal probe for ultrasonic 3D imaging and a computer for processing the image acquired by the probe and for computing the position of the needle relative to the prostate. The computer is controlled so as to periodically output information on the movement of the prostate after each of the insertion steps in order to validate the insertion parameters relative to a treatment schedule and, if need be, modifying the insertion parameters relative to the schedule in the event the movement is greater than a threshold value.

Therapeutic Inflatable Occlusive Devices, Systems, and Methods for Multiple Sclerosis, Deep Vein Thrombosis, and Pulmonary Embolism

Methods and devices are disclosed that, in various embodiments and permutations and combinations of inventions, diagnose and treat Multiple Sclerosis, Deep Vein Thrombosis, and/or Pulmonary Embolism or symptoms associated with these maladies. In one series of embodiments, the invention consists of methods and devices for identifying patients whose Multiple Sclerosis, Deep Vein Thrombosis, and/or Pulmonary Embolism or associated symptoms are caused or exacerbated, at least in part, by blockages of one or more of the patient's veins. In some instances, stenoses or other flow limiting structures or lesions in the patient's affected veins are identified. Further, in some instances the nature of such lesions and whether there is a significant disruption of blood pressure, or both, is ascertained. In some embodiments, methods and devices for applying one or more therapies to the blockages in the patient's veins are provided.

Cooled Laser Fiber for Improved Thermal Therapy

In one embodiment, the disclosure is directed to an integrated apparatus for delivering energy to a tissue. The integrated apparatus included a housing having a distal end and a tubular structure located within the housing forming a first annulus between the tubular structure and the housing. The tubular structure is configured to accept an energy delivery component and is configured to form a second annulus between the tubular structure and the energy delivery component. The first annulus and the second annulus are configured to communicate with each other proximate to the distal end of the housing.

Cooling systems for electrode arrays

A medical device is disclosed, including a catheter body; an electrode array coupled to the catheter body, the electrode array being transitionable from a substantially linear configuration to a substantially helical configuration; and a fluid conduit coupled to the catheter body spaced apart from the electrode array, wherein the fluid conduit is transitionable from a substantially linear configuration to a substantially helical configuration. The device may include a fluid source in communication with the fluid conduit and a radiofrequency signal generator coupled to the electrode array.

Medical ablation system and method of use

Cartilage and other tissues are treated by generating a plasma in an interior space of a probe and exposing the tissue to the plasma. The plasma is released through a gap in a working end of the probe.

Anchor delivery system with replaceable cartridge

A system and associated method for manipulating tissues and anatomical or other structures in medical applications for the purpose of treating diseases or disorders or other purposes. In one aspect, the system includes a delivery device configured to deploy and implant anchor devices for such purposes.

Reducing risk of complications associated with tissue ablation

Methods and systems are described that reduce risks of hematologic, metabolic, and renal complications in a mammal, such as a human, undergoing tissue ablation. One such method includes inserting a probe into a mammal and ablating abnormal tissue in the mammal by emitting a first amount of energy from the probe. In some embodiments, after emitting the first amount of energy, a method can include denaturing proteins released from cells in the abnormal tissue by emitting a second amount of energy from at least one of the first probe or a second probe inserted into the mammal. Furthermore, some embodiments can be implemented such that during or after the emitting the energy from a probe, a composition is administered to the mammal in an effective amount to denature proteins released from cells in the abnormal tissue.

Delivery systems for brachytherapy, and associated methods

Delivery systems adapted for implementation during a brachytherapy procedure are provided. The delivery system includes a plurality of brachytherapy seeds and a plurality of spacers. Each spacer is formed of a matrix material carrying a plurality of microparticles and/or nanoparticles. The microparticles and/or nanoparticles carry an agent and are biodegradable and/or biocompatible. The brachytherapy seeds and the spacers are configured to be delivered to a target site. Associated methods are also provided.

Apparatus and methods to create and maintain an intra-atrial pressure relief opening

The present disclosure relates to a method and a device for treating heart failure by normalizing elevated blood pressure in the left and right atria of a heart of a mammal The present disclosure includes methods for creating and maintaining an opening in the atrial septum. Tools for making an opening and enlarging the opening are also disclosed. Use of the techniques and tools described herein prolongs the patency of an intra-atrial pressure relief opening.

Method and System for Using Common Subchannel to Assess the Operating Characteristics of Transducers

A system and method for using a common subchannel to assess operating characteristics of one of a plurality of transducers coupled to said subchannel is disclosed. The of transducers are divided into subsets, with each subset is coupled to a subchannel. The system is configured to activate a selected transducer on the subchannel and the subchannel delivers operational information on the activated transducer. The present invention reduces the number of subchannels required to collect information on the plurality of transducers. The present invention permits a more compact ablation device to be constructed based on the invention's ability to reduce the total number of subchannels required to collect transducer information.

Energetic modulation of nerves

A system to modulate an autonomic nerve in a patient utilizing transcutaneous ultrasound energy delivery includes a processor comprising an input for receiving information regarding energy and power to be delivered to a treatment region containing the nerve, and an output for outputting a signal, wherein the processor is configured to determine a position of a reference target from outside the patient to localize the nerve relative to the reference target, a therapeutic energy device comprising a transducer for delivering ultrasound energy from outside the patient, a controller to control an aiming of the transducer based at least in part on the signal from the processor, and an imaging system coupled to the processor or the therapeutic energy device.

Apparatus and Method for Ablating Tissue

A control system alters one or more characteristics of an ablating element to ablate tissue. In one aspect, the control system delivers energy nearer to the surface of the tissue by changing the frequency or power. In another aspect, the ablating element delivers focused ultrasound which is focused in at least one dimension. The ablating device may also have a number of ablating elements with different characteristics such as focal length.

Surgical instrument for injecting a drug into prostate tissue

A needleless injector including a body at a proximal end, a shaft extending distally from the body, at least one injection orifice at a distal end of the shaft in fluid communication with a fluid chamber at the proximal end, a pressure source in communication with the fluid chamber, and a tissue tensioner located at the distal end of the shaft proximal to the injection orifice, wherein the distal end including the tissue tensioner and injection orifice is positionable within a urethral lumen so that when the tissue tensioner is deployed, tissue of the urethra is tensioned at a location for injection of fluid from the injection orifice into the tissue of the urethra.

System and method for reconstructing cardiac activation information

An example system and method of reconstructing biological activation information are disclosed. A first biological signal and a second biological signal associated with an organ are processed via a computing device to determine whether there is a point of change in a derivative of the first biological signal with respect to a derivative of the second biological signal above a threshold. An activation onset time is assigned in the first biological signal at the point of change to define biological activation associated with the organ in the first cardiac signal if it is determined that the point of change is above the threshold.

Device and method for removing veins

A device and method for safe, substantially blood-free vessel removal that preserves vein patency are disclosed. A specially designed lens-free laser vessel stripping device is inserted into the body and coupled to a laser energy source, to remove a major vessel while cutting and coagulating its lateral branches with minimal damage to surrounding tissue. Energy source is preferably a diode laser source emitting at wavelengths of about 980 nm, about 1470 nm or a combination of these wavelengths for obtaining best ablative and coagulative effects, thus achieving a safe and efficient removal of vessels with minimum collateral damage and thus faster recovery. Veins harvested using this device and method are better candidates for autologous grafts in other surgeries. Device and treatment are proposed for, but not limited to vein stripping of insufficient varicose veins, and removal of healthy veins for use as autologous grafts in surgical procedures such as coronary bypass surgery and for treatment of Peyronie's disease.

System and method for targeting catheter electrodes

A system and method is described for a catheter guidance system which allows an operator to use a mapping catheter to specify tissue target locations for the automatic guidance of a second therapeutic catheter. The operator places a mapping catheter at a desired location, and commands the catheter guidance system by either selecting a point on that catheter or one of the catheter electrode electrocardiograms. The operator may target the selected dynamic location, or tissue contact beyond that location on a specific side of the mapping catheter.

Systems and methods for determining location of an access needle in a subject

Systems and methods for epicardial electrophysiology and other procedures are provided in which the location of an access needle may be inferred according to the detection of different pressure frequencies in separate organs, or different locations, in the body of a subject. Methods may include inserting a needle including a first sensor into a body of a subject, and receiving pressure frequency information from the first sensor. A second sensor may be used to provide cardiac waveform information of the subject. A current location of the needle may be distinguished from another location based on an algorithm including the pressure frequency information and the cardiac waveform information.

Deep Vein Thrombosis Therapeutic Methods and Associated Devices and Systems

Methods and devices are disclosed that, in various embodiments and permutations and combinations of inventions, diagnose and treat Deep Vein Thrombosis or associated symptoms. In one series of embodiments, the invention consists of methods and devices for identifying patients whose Deep Vein Thrombosis or associated symptoms are caused or exacerbated, at least in part, by blockages of one or more of the patient's internal peripheral veins. In some instances, stenoses or other flow limiting structures or lesions in the patient's affected veins are identified. Further, in some instances the nature of such lesions and whether there is a significant disruption of blood pressure, or both, is ascertained. In some embodiments, methods and devices for applying one or more therapies to the blockages in the patient's peripheral veins are provided.

Vertebral bone navigation systems

System and methods for channeling a path into bone include a trocar having a proximal end, distal end and a central channel disposed along a central axis of the trocar. The trocar includes a radial opening at or near the distal end of the trocar. The system includes a curveable cannula sized to be received in the central channel, the curveable cannula comprising a curveable distal end configured to be extended laterally outward from the radial opening in a curved path extending away from the trocar. The curveable cannula has a central passageway having a diameter configured allow a probe to be delivered through the central passageway to a location beyond the curved path.

Therapeutic Cutting Devices, Systems, and Methods for Multiple Sclerosis, Deep Vein Thrombosis, and Pulmonary Embolism

Methods and devices are disclosed that, in various embodiments and permutations and combinations of inventions, diagnose and treat Multiple Sclerosis, Deep Vein Thrombosis, and/or Pulmonary Embolism or symptoms associated with these maladies. In one series of embodiments, the invention consists of methods and devices for identifying patients whose Multiple Sclerosis, Deep Vein Thrombosis, and/or Pulmonary Embolism or associated symptoms are caused or exacerbated, at least in part, by blockages of one or more of the patient's veins. In some instances, stenoses or other flow limiting structures or lesions in the patient's affected veins are identified. Further, in some instances the nature of such lesions and whether there is a significant disruption of blood pressure, or both, is ascertained. In some embodiments, methods and devices for applying one or more therapies to the blockages in the patient's veins are provided.

Vertebral Body Nerve and Vein Cauterizing System and Method

Disclosed are vertebroplasty methods that include cauterizing an inner cavity of a vertebra of a mammal, such as a human, and injecting bone cement into the vertebra. Systems and kits for performing such methods are also disclosed.

Methods and apparatus for performing a non-continuous circumferential treatment of a body lumen

Methods and apparatus are provided for non-continuous circumferential treatment of a body lumen. Apparatus may be positioned within a body lumen of a patient and may deliver energy at a first lengthwise and angular position to create a less-than-full circumferential treatment zone at the first position. The apparatus also may deliver energy at one or more additional lengthwise and angular positions within the body lumen to create less-than-full circumferential treatment zone(s) at the one or more additional positions that are offset lengthwise and angularly from the first treatment zone. Superimposition of the first treatment zone and the one or more additional treatment zones defines a non-continuous circumferential treatment zone without formation of a continuous circumferential lesion. Various embodiments of methods and apparatus for achieving such non-continuous circumferential treatment are provided.

System for heating a vertebral body to treat back pain

Methods and systems for modulating intraosseous nerves (e.g., nerves within bone) are provided. For example, the methods and systems described herein may be used to modulate (e.g., denervate, ablate) basivertebral nerves within vertebrae. The modulation of the basivertebral nerves may facilitate treatment of chronic back pain.

Device For Administering Heat To A Human Or Animal Tissue, Vessel Or Cavity

Device for administering heat to a cavity, tissue or vessel, characterised in that it takes the form of an insulated copper wire over the length of which is crimped a tube having a resistivity of more than 20 μΩ·cm, the copper wire ( 1 ) is in contact with the said tube at its distal extremity, the tube is enclosed over part of its length by at least one movable cylinder having an electrical resistance of less than 20 μΩ·cm, and the movable cylinder and the copper wire have means for connection to a current generator.

Catheter with flow balancing valve

A catheter has at least two irrigated ablation electrodes and a coaxial irrigation tubing to transport fluid to the electrodes by separate and dedicated flow paths. A valve is used to control flow of fluid into the coaxial irrigation tubing by means of a plunger assembly that allows fluid to flow through one lumen of the coaxial irrigation tubing while regulating the flow into the other lumen of the coaxial irrigation tubing in response to the fluid flow rate and pressure applied to the plunger assembly.

Robotic systems and methods for treating tissue

A method of manipulating an elongate member in at least two degrees of freedom includes holding an elongate member between two rotary members that define respective rotational axes, the elongate member having a flexible proximal portion, a distal rigid needle attached to the proximal portion, and an operative element for delivering energy, the needle having a distal port, actuating at least one of the rotary members in a rotational direction about its rotational axis to generate a corresponding linear motion of the elongate member along a longitudinal axis of the elongate member, and actuating at least one of the rotary members in a linear direction along its rotational axis to generate a corresponding rotational motion of the elongate member about the longitudinal axis of the elongate member.

Apparatus, System, and Method for Performing an Electrosurgical Procedure

A bipolar forceps includes a shaft extending from a housing and includes an end effector assembly at its distal end. The end effector assembly has a pair of jaw members movable between an open position and a closed position. A knife assembly includes a cutter having a generally circular cross-section. The cutter is configured to cut tissue when the jaw members are in the closed position. One or more electrically conductive tissue sealing plates are disposed on each of the jaw members. The tissue sealing plates are adapted to connect to an electrosurgical energy source configured to deliver electrosurgical energy to tissue held between the jaw members to effect a tissue seal. An actuator is operably coupled to the knife assembly and is configured to selectively reciprocate the cutter relative to the jaw members.

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.

Integrated Suture and Cauterization

A system for suturing and cauterization is provided. A needle assembly and/or suture line emanates heat to cauterize tissue during wound closure. Energy sources for the heat include thermal elements of a variety of configurations energized from electrical, RF or chemical sources disposed internally or external to the needle assembly. Conductive suture lines are provided and some embodiments include a surgical robot. Wound closure is improved and closing time decreased while the potential for bleeding induced by needle tract incisions and suture tension is minimized.

Flexible electrosurgical ablation and aspiration electrode with beveled active surface

Disclosed herein is a flexible single piece active element for use in connection with aspirating electrosurgical ablators, particularly those configured for bulk tissue vaporization. The active electrode elements of the present invention provide a simple construction suitable for use with a wide array of electrosurgical components and adjustable to wide range of angled positions to permit access to a variety of tissues, in an array of diverse environments and address a host of ablation needs. Additionally, the novel geometry and positioning of both ablation surface and aspiration ports permit aspiration flow to remove primarily waste heat rather than process heat, to thereby improve vaporization efficiency and reduce procedure time. Thus, active electrodes and ablation devices of the present invention maximize efficiency and adaptability while minimizing manufacturing cost and device profile.

Access and tissue modification systems and methods

Described herein are methods and systems for precisely placing and/or manipulating devices within the body by first positioning a guidewire or pullwire. The device to be positioned within the body is coupled to the proximal end of the guidewire, and the device is pulled into the body by pulling on the distal end of the guidewire that extends from the body. The device may be bimanually manipulated by pulling the guidewire distally, and an attachment to a device that extends proximally, allowing control of both the proximal and the distal ends. In this manner devices (and particularly implants such as innerspinous distracters, stimulating leads, and disc slings) may be positioned and/or manipulated within the body. Guidewire exchange systems, devices and methods are also described. A guidewire may be exchanged between different surgical devices and may be releaseably or permanently coupled.

Dual-Mode Piezocomposite Ultrasonic Transducer

A compact, high power, dual mode, emitting and receiving ultrasound transducer and method for applying ultrasonic energy within a living subject and for monitoring the effects it induces in tissue comprises a set of piezoelectric polymeric transducer elements and a set of piezoelectric ceramic elements, bonded together. The polymeric transducer elements have electrodes enabling their use for low power diagnostic imaging interrogation of the tissue and the ceramic transducer elements have electrodes enabling their use for high power therapy applications.

High-frequency operation apparatus and operation apparatus

A high-frequency operation apparatus includes a grasping portion for grasping a treatment target living tissue, an electrode for supplying a high-frequency current to the living tissue, a high-frequency current supplying section that generates the high-frequency current necessary for treatment, a cable section that transmits the high-frequency current, an impedance measuring section for measuring an impedance value of the living tissue, a detecting section that detects that the impedance value reaches an impedance threshold at a time when moisture in the living tissue starts to evaporate, a measuring section that measures an output time of the high-frequency current after the detection, a storing section that stores a set time, and an output control section that performs control for stopping an output when the output time of the high-frequency current reaches the stored set time.

Cardio mapping system and method for cardio mapping

A method and system for determining the mechanism of cardiac arrhythmia in a patient is disclosed. The method basically entails measuring the impedance of cardiac tissue in a portion of the patient's heart using a catheter during an episode of supraventricular tachycardia to produce an iso-impedance map of that cardiac tissue on a video display and analyzing the pattern of the iso-impedance map to differentiate focal arrhythmia caused by a circumscribed region of focal firing and reentrant arrhythmia caused by a macroreentrant circuit. The method can also be used to identify regions of coherent rapidly conducting tissue e.g., Bachman's bundle or the inferoposterior pathway insertion points, to identify focal “mother rotors” throughout the left atrium that may participate in the generation and maintenance of atrial fibrillation and to identify areas of CAFE (complex atrial/fractionated electrograms) that truly reflect these mother rotors.

Surgical fluid management systems and methods

A surgical fluid management system delivers fluid for distending a uterine cavity to allow cutting and extraction of uterine fibroid tissue, polyps and other abnormal uterine tissue. The system comprises a fluid source, fluid deliver lines, one or more pumps, and a filter for re-circulating the distension fluid between the source and the uterine cavity. A controller can monitor fluid retention by the patient.

Device and methods for renal nerve modulation

Systems for nerve modulation are disclosed. An example system may include a first elongate element having a distal end and a proximal end and having at least one transducer disposed adjacent the distal end. The transducer may be an ultrasound transducer. Activation of the transducer may radiate acoustic energy from in two directions simultaneously.

Methods and systems for detection and thermal treatment of lower urinary tract conditions

The invention is directed to a method for treating a urinary system. The method includes positioning one or more treatment units with respect to an organ wall. The one or more treatment units may be configured to deliver thermal energy. The method further includes delivering energy through the one or more treatment units to heat tissue of the organ wall.

Renal nerve ablation cooling device and technique

A catheter is disclosed including an elongated shaft having a distal end and a proximal end, where the catheter includes a thermal element at the distal end thereof. The thermal element may be used in an ablation procedure or other procedure to heat a tissue adjacent a vessel. The configuration of the distal end of the elongated shaft at or near the distal tip may encourage the cooling of or transferring of heat from the vessel wall. The configurations may include protrusions extending from and indentations extending into the shaft, which may manipulate the flow of fluid through a vessel in which the catheter has been inserted. Alternatively or additionally, a cap or thin insulative layer may be placed at or near the distal tip of the catheter shaft to cool the wall of the vessel.

Medical devices including ablation electrodes

Medical devices and methods for making and using medical devices are disclosed. An example medical device may be a renal nerve modulation catheter. The catheter may include an elongate catheter shaft. The catheter shaft may have a plurality of cuts formed therein define a plurality of electrode assemblies. The electrode assemblies may each include a main strut, one or more branched spacer struts extending from the main strut, and an electrode extending from the main strut and positioned radially inward from the spacer struts.

Method and apparatus for performing transesophageal cardiovascular procedures

An apparatus for performing a transesophageal cardiovascular procedure includes an elongated tubular main access device having a first lumen with an open proximal end and a distal side opening, and a second lumen with a rigid outer wall and a collapsible inner wall. The second lumen is adapted to receive an elongated probe or surgical device. The apparatus further includes an inflatable sealing means on the outside of the main access device above and below the side opening, and a first fluid conduit extending along the main access device for inflating the sealing means so that when the main access device is inserted into a patient's esophagus and the sealing means are inflated. The portion of the esophagus opposite the side opening is isolated from the remainder of the esophagus above and below the side opening.

Tissue extraction devices and methods

A tissue cutting device has an outer sleeve with a distal window and an inner cutting sleeve which moves past the window to cut tissue. The inner cutting sleeve has a lumen which may have a larger proximal diameter than distal diameter. A perimeter of the window may comprise a dielectric material. A distal edge of the inner sleeve may be displaced inwardly.

Litz wire battery powered device

A medical instrument is disclosed. The medical instrument includes a housing and a handle for gripping by a user, an end effector coupled to the handle and having at least one electrical contact, a battery, and a radio frequency (RF) generation circuit coupled to and operated by the battery. The RF generation circuit is operable to generate an RF drive signal and to provide the RF drive signal to the at least one electrical contact, wherein the RF generation circuit is supported by the housing. The RF generation circuit includes a resonant circuit that includes at least one inductive element constructed of litz wire.

Targeted inhibition of physiologic and pathologic processes

In some embodiments, sympathetic nerves surrounding arteries or leading to organs are targeted with energy sources to correct or modulate physiologic processes. In some embodiments, different types of energy sources are utilized singly or combined with one another. In some embodiments, bioactive agents or devices activated by the energy sources are delivered to the region of interest and the energy is enhanced by such agents.

Expandable structure for off-wall ablation electrode

Catheter systems and methods for making and using catheters systems are disclosed. An example catheter system may include a catheter having a proximal end, and a distal end, an electrode for tissue modulation disposed on a distal portion of the catheter. An expandable basket structure may be placed over a distal section of the catheter. The expandable basket structure may have a basket having a fixed end and a movable end. The movable end may be slidably coupled to the catheter. An actuating structure may be connected to the movable end for moving the expandable basket between a collapsed state and an expanded state.

Impedance mediated control of power delivery for electrosurgery

A method of controlling electrosurgical power delivery is based on a comparison of sensed tissue impedance to various impedance threshold values. Energy is delivered to tissue in a sealing cycle as a series of pulses. A pulse has a profile with a preset energy starting value that increases at a ramping rate to a preset end value. Sensed impedance data are monitored throughout each pulse and compared to each of an impedance threshold value for RF setpoint, an impedance threshold value for cumulative time, and an impedance threshold value for energy cutback. Based on sensed impedance during a pulse, the profile of a subsequent pulse can be modified. In the event of a high impedance event that reflects low tissue presence, energy may be cutback. A sealing cycle is stopped when a cumulative amount of time with an impedance value over the impedance cumulative time threshold value reaches a limit.

Ostial renal nerve ablation

A catheter including an elongated shaft having a distal end and a proximal end, where the catheter includes a thermal element at the distal end thereof. The thermal element may be used in an ablation procedure or other procedure to heat a tissue adjacent a vessel. In some instances, the thermal element may be positioned in a first vessel and may operate to heat tissue adjacent a second vessel or adjacent an ostium between the first vessel and the second vessel. Further, the catheter may include an expandable portion on which the thermal element may be connected or positioned. The expandable portion(s) may comprise a basket or cage, a balloon, a memory shape and formable portion, and/or other mechanical expanders.

Method of making polymeric gloves having embedded surgical support systems and discrete elements

A method of manufacturing a glove that includes discrete elements and component systems, such as, but not limited to, lights, electrical cautery, suction, and irrigation, attached to the surgical glove. The gloves produced by this method can be used as surgical gloves or for other industrial applications. In a particular application, the method includes providing a former comprising a hand-shaped portion and a first surgical system comprising a first surgical instrument, and a first switch for controlling the first surgical system. The former includes a first depression for receiving the first surgical system. The first depression is adapted to produce an interference fit with at least a portion of the first surgical system. The first surgical system can be loaded into the first depression and a polymer coating can be applied over the loaded former to form a surgical glove.

Integrative atrial fibrillation ablation

Cardiac tissue ablation is carried out by defining first regions containing first locations including ganglionated plexi in a heart of a living subject, and inserting a probe into the heart. The method is further carried out by detecting electrical activity in the heart via electrodes on the distal portion of the probe, defining second regions having second locations, wherein the electrical activity exhibits a dominant frequency that is higher than a predefined threshold, defining third regions having third locations, wherein the electrical activity exhibits complex fractionated atrial electrograms, constructing an electroanatomical map of the heart that defines intersections of the first regions and at least one of the second regions and the third regions, selecting ablation sites within the intersections, and ablating cardiac tissue at the ablation sites.

Battery shut-off algorithm in a battery powered device

A medical instrument is disclosed. The medical instrument includes at least one electrical contact, a battery, a radio frequency (RF) generation circuit coupled to and operated by the battery and operable to generate an RF drive signal and to provide the RF drive signal to the at least one electrical contact, and a battery discharge circuit coupled to the battery. A processor is coupled to the battery discharge circuit and a memory is coupled to the processor. The memory stores machine executable instructions that when executed cause the processor to monitor activation of the RF generation circuit and disable the RF generation circuit when the RF drive signal is fired a predetermined number of times. The medical instrument may include an activation switch and/or a disposal switch supported by the housing.

Deflectable renal nerve ablation catheter

Medical devices including catheters for renal nerve ablation and/or modulation as well as methods for making and using such devices are disclosed. An example catheter may, have a proximal region and a distal region. The catheter may be configured to shift between a first straightened configuration and a second deflected configuration. The catheter may also include an ablation member coupled to the distal region and a handle coupled to the proximal region. The handle may include an actuation member for shifting the catheter between the first configuration and the second configuration. A lock may be coupled to the handle that maintains the catheter in either the first configuration or the second configuration.

Articulating ablation device and method

An ablation device including a handle portion, a shaft and at least one cable. The shaft extends distally from the handle portion and includes an inner conductor and an outer conductor that substantially surrounds at least a portion of the inner conductor. The cable extends from the handle portion along at least a portion of the shaft. The distal tip of the inner conductor is positionable distally beyond a distal-most end of the outer conductor. In response to movement of the at least one cable relative to the handle portion, the distal tip of the outer conductor is movable form a first position where the distal tip is substantially aligned with a longitudinal axis defined by the outer conductor to at least a second position where the distal tip is disposed at an angle relative to the longitudinal axis.

Vacuum coagulation probes

A surgical device integrating a suction mechanism with a coagulation mechanism is provided for improving lesion creation capabilities. The device comprises an elongate member having an insulative covering attached about means for coagulating soft tissue. Openings through the covering expose regions of the coagulation-causing elements and are coupled to lumens in the elongate member which are routed to a vacuum source. A fluid source to passively transport fluid along the contacted soft tissue surface may be provided in order to push the maximum temperature deeper into tissue.

Electrosurgical radio frequency energy transmission medium

A system and method for transmitting electrosurgical energy from a generator to an electrosurgical instrument are provided. The electrosurgical system includes a generator adapted to generate electrosurgical energy for treating tissue. The generator includes one or more active output terminals which supply energy to the tissue. The active output terminals are operatively connected to one or more supply lines. The generator also includes one or more return output terminal which returns energy from the tissue. The return output terminals are operatively connected to at least one return line. The system also includes an electrosurgical instrument operatively connected to the one or more supply lines and one or more return electrodes operatively connected to one or more return lines. The system further includes an electrosurgical cable including one or more supply lines and one or more return lines. The one or more supply lines and one or more return lines are wound in a double helix fashion such that the electrical field along the cable is mitigated along the length thereof.

Renal neuromodulation methods and devices for treatment of polycystic kidney disease

Methods for treating polycystic kidney disease with therapeutic renal neuromodulation and associated systems and methods are disclosed herein. One aspect of the present technology is directed to methods that at least partially inhibit sympathetic neural activity in nerves proximate a renal artery of a kidney of a patient. One or more measurable physiological parameter corresponding to the polycystic kidney disease can thereby be reduced. Moreover, central sympathetic drive in the patient can be reduced in a manner that treats the patient for the polycystic kidney disease. Renal sympathetic nerve activity can be modulated along the afferent and/or efferent pathway. The modulation can be achieved, for example, using an intravascularly positioned catheter carrying a neuromodulation assembly, e.g., a neuromodulation assembly configured to cryotherapeutically cool the renal nerve or to deliver an energy field to the renal nerve.

Surgical instrument for injecting a drug into prostate tissue

Method and surgical instrument for treating prostate tissue including a surgical instrument having a main body, a needle deployment port, a needle, first and second handles and a lockout release mechanism to limit needle extension. Additionally, a kit includes the surgical instrument, together with a cystoscope, and optionally a syringe and reservoir of ethanol. The method includes needle-less injection and visualizing the ethanol injection by delivering both an echogenic agent and ethanol either by needle or needle-less injection or by providing an ultrasonically visible marker near the tip of the ethanol delivery cannula. The method also includes extending the needle transversely of the instrument housing using a link assembly.

Catheter balloon methods and apparatus employing sensing elements

An apparatus for medical diagnosis and/or treatment is provides. The apparatus includes a flexible substrate forming an inflatable body and a plurality of sensing elements disposed on the flexible substrate. The plurality of sensing elements are disposed about the inflatable body such that the sensing elements are disposed at areas of minimal curvature of the inflatable body in a deflated state.

Systems and methods for making and using medical ablation systems having mapping catheters with improved anchoring ability

A mapping catheter includes an elongated body for inserting into patient vasculature. A distal end of the elongated body includes a distal portion that includes a plurality of electrodes, a proximal portion disposed proximal to the distal portion, and a reduced-dimension portion disposed between the proximal and distal portions. The distal end is formed, at least in part, from a memory shape material that bends into a preformed shape upon release from a confined space. The preformed shape includes a first loop formed, at least in part, by the distal portion. The first loop is transverse to a longitudinal axis of the proximal portion. The reduced-dimension portion is configured and arranged to bend such that the reduced-dimension section advances distally through the first loop when the first loop is held in a fixed position and a force is applied distally along the longitudinal axis of the proximal portion.

Impedance responsive ablation rf driving for moderating return electrode temperature

The inventive method for ablating a tissue mass associated with a human or animal patient being treated comprises positioning an ablating electrode in a tissue mass to be ablated. A plurality of return electrodes are positioned on the patient. Electrical energy is applied between the return electrodes and the ablating electrode. The temperature of the return electrodes is measured to generate a temperature measurement signal which is used to control ablation current through the return electrodes.

Methods and apparatuses for remodeling tissue of or adjacent to a body passage

Medical devices and methods for making and using the same are disclosed. An example medical device may include a catheter shaft. An expandable member may be coupled to the catheter shaft. A plurality of flexible electrode assemblies may be coupled to the expandable member. A control unit may be coupled to the electrode assemblies. The control unit may be configured to energize the electrode assemblies for approximately 10 seconds to less than approximately 1 minute.

Catheter with atraumatic tip

A medical device is provided comprising a shaft comprising a first segment and a second segment. The first segment is configured to buckle upon application of a first critical force. The second segment includes an outer surface and an inner surface and is configured to buckle upon application of a second critical force. The second critical force is lower than the first critical force. The medical device further comprises a coil disposed radially inwardly of the inner surface of the second segment.

Touch free operation of ablator workstation by use of depth sensors

An inventive system and method for touch free operation of an ablation workstation is presented. The system can comprise a depth sensor for detecting a movement, motion software to receive the detected movement from the depth sensor, deduce a gesture based on the detected movement, and filter the gesture to accept an applicable gesture, and client software to receive the applicable gesture at a client computer in an ablation workstation for performing a task in accordance with client logic based on the applicable gesture. The system can also comprise hardware for making the detected movement an applicable gesture. The system can also comprise voice recognition providing voice input for enabling the client to perform the task based on the voice input in conjunction with the applicable gesture. The applicable gesture can be a movement authorized using facial recognition.

Renal nerve denervation via the renal pelvis

Apparatus, systems, and methods provide access to the renal pelvis of a kidney to treat renal nerves embedded in tissue surrounding the renal pelvis. Access to the renal pelvis may be via the urinary tract or via minimally invasive incisions through the abdomen and kidney tissue. Treatment is effected by exchanging energy, typically delivering heat or extracting heat through a wall of the renal pelvis, or by delivering active substances.

Devices and methods for bipolar and monopolar procedures

An integrated catheter assembly comprises a bipolar electrode tool and a monopolar electrode tool. The catheter assembly enables an operator to perform both bipolar and monopolar procedures on tissue without having to withdraw the catheter assembly, without having to remove or replace any part of the catheter assembly, and/or without having to insert any additional tools or parts. The catheter assembly may comprise a switching mechanism such that when one of the bipolar electrode tool and monopolar electrode tool is electrically activated, the other of the bipolar electrode tool and monopolar electrode tool cannot be electrically activated. In one embodiment of a method, the operator uses a single catheter assembly for applying bipolar current for tissue electro-therapy and monopolar current for tissue cutting.