Verfahren zur medizinischen Behandlung von Patienten

Bei einem Verfahren zur medizinischen Behandlung von Patienten bei störenden akustischen Effekten während der Schlafphase, wie beispielsweise Schnarchen, oder bei Schlafapnoe, soll ein Gewebe des Patienten, insbesondere das Gaumensegel, mit einer Infrarotstrahlung über einen Lichtleiter mit hoher Streuung behandelt werden, um effizient grosse Flächen des Gewebes durch thermische Wechselwirkungen zu straffen.

Sondenelektrode

Sonde für die Durchführung einer Plasma-Koagulation von Geweben, insbesondere über ein Endoskop, umfassend eine rohr- oder schlauchförmige Zuleitungseinrichtung (20) zum Führen eines Edelgases von einer Edelgasquelle zu einem distalen Ende der Zuleitungseinrichtung (21) und eine Elektrodeneinrichtung mit einem Entladungsabschnitt (10, 40, 50, 60), der innerhalb der rohr- oder schlauchförmigen Zuleitungseinrichtung (20) angeordnet ist, und eine elektrischen Zuleitung (30) zum Leiten eines HF-Stromes von einer HF-Quelle zum Entladungsabschnitt (10), dadurch gekennzeichnet, daß der Entladungsabschnitt (10, 40, 50, 60) derart flächig ausgebildet ist, daß das Edelgas den Entladungsabschnitt im wesentlichen vollständig umströmt.

Electrosurgical instrument

An electrosurgical instrument 200 comprising an electrosurgical device 202 within a catheter 204 insertable through an instrument channel of a scoping device. The electrosurgical device comprises a coaxial cable 206 terminating in a radiating tip 208 of smaller diameter than the cable and employing a radiating needle 212. The electrosurgical device is movable between a deployed position in which the needle protrudes out of the catheter, and a retracted position in which the needle is contained within the catheter. Also taught is a handpiece (1000, Fig 10) for controlling movement of an electrosurgical device along a catheter. The handpiece comprises a first section (1002, Fig 10) connectable to an instrument port of a scoping device, a second section (1008, Fig 10), movable along a length of the first section, and capable of holding the catheter. Relative movement between the first and second sections controls the length of catheter that extends out the handpiece. A third section (1016, ...

Electrosurgical ablation instrument

An electrosurgical instrument having a microwave ablation antenna dimensioned to be suitable for insertion into a pancreas via a surgical scoping device, to provide a rapid and accurate alternative to known RF ablation techniques. The instrument comprises a radiating tip portion connected at a distal end of a flexible coaxial cable that conveys microwave energy. The radiating tip portion comprises a proximal coaxial transmission line for conveying the microwave energy and a distal needle tip mounted at a distal end of the coaxial transmission line, wherein the distal needle tip operates as a half wavelength transformer. The length of the radiating tip portion may be in the range from 5 mm to 80 mm.

ELECTROSURGICAL FORMATION OF PSEUDOPOLYPS

Electrosurgical medical systems and methods for maintaining a target tissue portion in a raised position are disclosed. In one embodiment, the target tissue portion may be withdrawn into a distal chamber of an electrosurgical device using a proximal bias. An electrode assembly of the electrosurgical device may contact a base of the target tissue portion. The electrode assembly may apply an electrical current to coagulate the target tissue portion while the proximal bias is being applied detaching the target tissue portion from the underlying tissue. Suction and electrical current may be applied without detaching the target tissue portion from the underlying tissue.

Medical instrument having medical-treatment electrode

Electro-cautery catheter

Electrosurgical rotating cutting device

An electrosurgical cutting device and method thereof for incising tissue are disclosed. The electrosurgical cutting device includes an asymmetrical cutting element that is affixed to a distal end of a torque cable. The cutting element is disposed within an end cap and is axially movable between a retracted position and an extended position. Rotation of the torque cable during a procedure allows the cutting element to rotationally align with and hook the target tissue onto the cutting element. An elongate member of the cutting element selectively lifts the target tissue away from surrounding tissue and structures. Having lifted the tissue away the surrounding tissue and structures, incision can occur.

Microwave energy-delivery device and system

H-I L-00077A (1 988-77A) MICROWAVE ENERGY-DELIVERY DEVICE AND SYSTEM Abstract An ablation system including an image database storing a plurality of computed tomography (CT) images of a luminal network and a navigation system enabling, in combination with an endoscope and the CT images, navigation of a locatable guide (1032) and an extended working channel to a point of interest. The system further includes one or more fiducial markers, placed in proximity to the point of interest and a percutaneous microwave ablation device (20) for applying energy to the point of interest.

System and method of treating abnormal tissue in the human esophagus

METHODS AND APPARATUS FOR TREATMENT OF OBESITY

Method and apparatus for treating obesity by use of transesophageal delivery of energy to interrupt the function of vagal nerves.

OPERATIVE DEVICES THAT CAN BE REMOVABLY FITTED ON CATHETER BODIES TO TREAT TISSUE REGIONS IN THE BODY

A targeted tissue region in a body is treated by a tissue heating element (44) attached to a carrier. The carrier is intended, in use, to be temporarily mounted to an exterior of a catheter body, such as an endoscope. The catheter body is deployed, with the carrier mounted on it, into the targeted tissue region. The tissue heating element (44) is operated, e.g., to form one or more tissue lesions, after which the catheter body is retrieved from the targeted tissue region. The carrier can then be removed from the catheter body, allowing the catheter body to the subsequently used for another purpose.

SYSTEMS AND METHODS FOR TREATING DYSFUNCTIONS IN THE INTESTINES AND RECTUM

A sphincter tissue region is treated using a support structure (42) sized for advancement into the anal canal. At least one electrode (66) is carried by the structure (42). A mechanism (68) is coupled to the electrode to move the electrode (66) between a first position retracted in the support structure, and a second position extended from the support structure (42) through surface tissue to penetrate a subsurface tissue region at or near a sphincter in the anal canal. A cable is coupled to the electrode (66) to conduct energy for application by the electrode (66) to form a lesion in the subsurface tissue region.

EFFICIENT MULTI-FUNCTIONAL ENDOSCOPIC INSTRUMENT

An instrument for endoscopic applications, including urology. The instrument may include both irrigation and aspiration channels, effective attraction and suction of tissue and body stone fragments, enhanced viewing clarity of the operational area, illumination fibers with steering function for flexible version of the scopes. In some embodiments, a distal head is configured to locate a mouth of the working channel within a viewing angle of the visualization system. In some embodiments, a transparent cap is disposed at the distal end of endoscope to provide an enhanced view of the operational area. Irrigation and aspiration channels may be arranged so that consistent water flow will attract tissue and body stone particles and remove heated liquid. Illumination fibers may be utilized as pull linkages or push-pull linkages for deflection and steering of flexible embodiments of the scope.

MEDICAL INSTRUMENT INCLUDING AN END EFFECTOR HAVING A MEDICAL-TREATMENT ELECTRODE

A medical instrument includes a flexible sheath and an end effector. The sheath has a distal end. The end effector is attached to the sheath proximate the distal end and is insertable into a patient. The end effector includes opposing and retroflexed first and second jaws and includes at least one medical-treatment electrode supported by the second jaw. At least one of the first and second jaws is rotatable. In one implementation, the at-least-one medical-treatment electrode is operatively connectable to a medical radio-frequency (RF) generator. In one application, the end effector is insertable into the esophagus of a patient. In one employment, the first and second jaws are adapted to grasp a working end of a flexible tube of an endoscope.

ELECTROSURGICAL FORCEPS FOR DELIVERING MICROWAVE ENERGY FROM A NON-RESONANT UNBALANCED LOSSY TRANSMISSION LINE STRUCTURE

Electrosurgical forceps for delivering microwave energy into biological tissue from a non-resonant unbalanced lossy transmission line structure located within or formed by the jaws of the forceps. The transmission line structure may be formed across the gap between the jaw element by opposed conductive elements, which are respectively electrically connected to inner and outer conductors of a coaxial cable. Alternatively, each jaw element may comprise its own lossy transmission line, whereby a power splitter is used to divide microwave energy from the coaxial cable. The forceps may be used endoscopically in the gastrointestinal tract or laparoscopically or in open surgery.

APPARATUS AND SYSTEM FOR CUTTING

The present invention provides an apparatus for cutting. The apparatus can be particularly used in a large area cutting of a mucous membrane (84) wherein the apparatus (11) contains at least one first gas supplying line (35a) and at least one second gas supplying line (35b), and distal ends (36a, 36b) are placed to form an acute angle (α) and ends (36a, 36b) of the gas supplying lines (35a, 35b) are branched to distal portions. Between the distal ends (36a, 36b) of the gas supplying lines (35a, 35b), provided is a free space (45) in which a user of the apparatus (11) can see a tissue area (47) in a rear of a distal end (21) of the apparatus (11) through the free space (45) between the distal ends (36a, 36b) of the gas supplying lines (35a, 35b). By means of the acute angle (α), it is possible to generate a wide-width plasma beam which could perform a mucous membrane cutting by electrodes (41a, 41b) arranged at least partially on the ends (36a, 36b) of the gas supplying lines (35a, 35b).

ABLATION IN THE GASTROINTESTINAL TRACT TO ACHIEVE HEMOSTASIS AND ERADICATE LESIONS WITH A PROPENSITY FOR BLEEDING

Devices and methods are provided for the ablation of regions of the digestive tract to achieve hemostasis and to eradicate chronically bleeding lesions as occur with gastric antral vascular ectasia (GAVE), portal hypertensive gastropathy (PHG), radiation proctopathy and colopathy, arteriovenous malformations, and angiodysplasia. Ablation is typically provided in a wide-field manner, and in conjunction with sufficient pressure to achieve coaptive coagulation. Ablation, as provided the invention, starts at the mucosa and penetrates deeper into the gastrointestinal wall in a controlled manner. Ablation control may be exerted by way of electrode design and size, energy density, power density, number of applications, pattern of applications, and pressure. Control may also be provided by a fractional ablation that ablates some tissue within a target region and leaves a portion substantially unaffected. Embodiments of the device include an ablational electrode array that spans 360 degrees and ...

ENDOSURGICAL OPERATING DEVICE AND ENDOSCOPIC DEVICE COMPRISING SAME

Disclosed are an end-surgical operating device and an endoscopic device comprising same. The endosurgical operating device of the present invention comprises: an operating tube installed in the insertion part of the endoscope that is to be inserted into the body; an operating plate which is inserted and installed in the operating tube and which has at least one needle having a pointed tip; a drive unit for driving the operating plate such that a plurality of needles protrude from the end of the operating tube and are inserted into the internal tissue or endothelial surface; and a power supply unit electrically connected to the plurality of needles. According to the present invention, an endothelial adsorption means for adsorbing the epithelial layer of the endothelium is provided to enable the plurality of needles to easily reach the lower tissue of the epithelial layer, thus maximizing the effects of treating the endothelium using the plurality of needles.

APPARATUS WITH PARTIALLY INSULATED NEEDLE FOR MEASURING TISSUE IMPEDANCE AND METHOD USING SAME

An apparatus (21) for use with a radio frequency generator (28) and an indifferent electrode (74) to treat tissue in a mammalian body includes a needle (61b) having a distal portion (65) and being adapted for coupling to the radio frequency generator and a layer of insulating material (72) extending around the needle but exposing a part (73) of the distal portion of the needle. The exposed part of the needle is sized as a function of the thicknesses of the plurality of layers of tissue to facilitate placement of the distal portion of the needle in the plurality of layers by measuring impedance between the needle and the indifferent electrode.

ELECTROSURGICAL ABLATION INSTRUMENT

An electrosurgical instrument having a microwave ablation antenna dimensioned to be suitable for insertion into a pancreas via a surgical scoping device, to provide a rapid and accurate alternative to known RF ablation techniques. The instrument comprises a radiating tip portion connected at a distal end of a flexible coaxial cable that conveys microwave energy. The radiating tip portion comprises a proximal coaxial transmission line for conveying the microwave energy and a distal needle tip mounted at a distal end of the coaxial transmission line, wherein the distal needle tip operates as a half wavelength transformer. The length of the radiating tip portion may be in the range from 5 mm to 80 mm. 1. An electrosurgical instrument comprising:a flexible coaxial cable configured to convey microwave energy; a proximal coaxial transmission line for conveying the microwave energy; and', 'a distal needle tip mounted at a distal end of the coaxial transmission line,, 'a radiating tip portion connected at a distal end of the coaxial cable and configured to receive the microwave energy, wherein the radiating tip portion is substantially rigid to permit insertion into biological tissue, and wherein the radiating tip portion compriseswherein the distal needle tip is configured to operate as a half wavelength transformer to deliver the microwave energy from the distal needle tip.2. An electrosurgical instrument according to claim 1 , wherein the radiating tip portion comprises an intermediate coaxial transmission line between the proximal coaxial transmission line and the distal needle tip.3. An electrosurgical instrument according to claim 1 , wherein the proximal coaxial transmission line comprises:an inner conductor that extends from a distal end of the flexible coaxial cable, the inner conductor being electrically connected to a centre conductor of the flexible coaxial cable;a proximal dielectric sleeve mounted around the inner conductor; andan outer conductor mounted ...

Medical-treatment electrode assembly and method for medical treatment

One medical-treatment electrode assembly includes a medical-treatment flexible electrode supported on the outer surface of a sidewall of a flexible tube which is insertable into a patient. Another assembly includes two electrodes supported on the outer surface of a flexible tube, wherein a video camera of a flexible endoscope inserted into the tube can view patient tissue between the two electrodes. An additional assembly includes apparatus for moving patient tissue into a sidewall opening of a tube which supports a medical-treatment electrode to tighten patient tissue outside the tube against the medical-treatment electrode. A method for medical treatment includes moving patient tissue into a sidewall opening of a tube which supports a medical-treatment electrode to tighten patient tissue outside the tube into substantially full contact with the medical-treatment electrode.

Medical device with improved wall construction

A medical device having a laminate elongate hollow member is disclosed. The laminate member provides torsional stiffness for controlling positioning of the distal end of the device, and provides bending flexibility for assisting in insertion of the device in the patient's esophagus or other body lumen.

Electro-cautery catheter

An integrated catheter assembly for enabling diverse endoscopic in situ therapies. The assembly includes a catheter with an irrigation fluid lumen, a distal electrode tip portion that acts as a hemostat, and a cutting wire for making incisions in or ablating tissue. A cutting wire hub provides a sealing entrance for a cutting wire. An operator enables the physician to displace the cutting wire between extended and retracted positions. The cutting wire and electrode are electrically isolated. The apparatus of the present invention allows the physician to make incisions in or ablate tissue using electrosurgery, irrigate tissue, and cauterize or coagulate tissue without having to remove the apparatus from the working channel of the endoscope.

Apparatus for use in the prophylaxis or treatment of tissue

Apparatus ( 20 ) for carrying out a prophylactic or treatment procedure on tissue comprises a device ( 21 ) having a chamber ( 22 ) and at least one active element such as an electrode ( 23 ) within the chamber ( 22 ). The chamber ( 22 ) has an opening ( 26 ) through which tissue is drawn into the chamber ( 22 ). Means for drawing the tissue into the chamber may comprise a vacuum lumen with vacuum orifices ( 25 ) in the chamber ( 22 ). Treatment such as electroporation may be applied to tissue in the chamber ( 22 ).

Device, system and method for in-vivo cauterization

Devices, systems and methods for in-vivo cauterization. An autonomous in-vivo device may include a heating mechanism to cauterize in-vivo tissue. A system may include an autonomous in-vivo heating device having a heating mechanism to cauterize in-vivo tissue, and an in-vivo imaging device to acquire in-vivo images.

Microwave energy-delivery device and system

A microwave ablation device including a cable assembly configured to connect a microwave ablation device to an energy source and a feedline in electrical communication with the cable assembly. The microwave ablation device further includes a balun on an outer conductor of the feedline, and a temperature sensor on the balun sensing the temperature of the balun.

Living body heating instrument and control device

A living body heating instrument is pushed or inserted into an affected part to continuously perform cauterization and vaccinotherapy. A living body heating instrument that is pushed or inserted into an affected part of a living body to heat the affected part includes: an inner needle; and an outer needle having a hollow portion into which the inner needle is inserted through an opening at the needle base side toward the needle tip side. The inner needle has biocompatibility and thermal conductivity, and contains a heater. The affected part is cauterized by the heater with the inner needle inserted in the outer needle. Next, the inner needle is withdrawn, and a drug is injected through the outer needle, which remains inserted, to perform immunotherapy. A temperature detecting element may be provided in an inner part of the inner needle or on an outer surface of the outer needle.

DEVICE FOR RESECTION TISSUE

Apparatus for deploying a cutting element during an endoscopic mucosal resection

A deployable cutting element assembly (300) including an electrically insulated shaft (306) defining an internal channel (304) extending at least partially therethrough, the shaft including a distal portion and a proximal portion, and an electrically conductive wire (302) including a proximal portion (312) extending through the internal channel and a distal portion (308) disposed external of the internal channel, wherein the distal portion of the wire is fixedly connected to the distal portion of the shaft such that the distal portion of the wire forms a cutting tip (316) when the wire is advanced in a distal direction through the internal channel.

ИНСТРУМЕНТ И СИСТЕМА ДЛЯ АБЛЯЦИИ

Hochfrequenzvorrichtung für chirurgische Eingriffe

Electrosurgical instrument

Raman spectroscopy probe, Raman spectroscopy apparatus including the Raman spectroscopy probe and elongate assembly

A Raman spectroscopy probe has an elongate body 10. The body 10 has a lumen, i.e. passageway/ through hole/ bore, for receiving an elongate instrument 32. The instrument 32 can be slidably received or can be permanently fixed in the lumen. Raman fibres are arranged outside the lumen, e.g. illumination 28 and collection 30 fibres coaxially surround the bore. Optionally, a single type of fibre may surround the lumen instead and a multiplexer or time-division switch (76, Fig. 11) may switch the function of that fibre between illuminating and collecting. The instrument 32 can be an (endoscopic) surgical instrument, an endoscopic camera. Also disclosed is an electrosurgical device (Fig. 16) having a passageway for receiving an elongate instrument 32. The electrosurgical device is for radiating electromagnetic energy for tissue treatment. It has a tuning element for shaping e.g. microwave radiation. The instrument 32 can be a Raman spectroscopy probe.

SYSTEMS FOR THE TREATMENT OF MALFUNCTIONINGS OF ENTRAILS AND THE REKTUMS

Surgical weight control device

Electrosurgical device and methods

Abstract A tissue segmentation device, controller, and methods therefore are disclosed. The device has an active electrode, a return electrode, a mechanical force application mechanism, voltage and current sensors, and a controller. The controller is configured to control a power output of the segmentation device. The controller has a processing component, responsive to the sensors, configured to execute the following: (a) derive a power factor of power applied to the at least one electrode; and (b) responsive to the deriving a power factor, assign a circuit status to a circuit comprising the at least one electrode. IF (PF ~ 0) and ((Vrms/Irms);> T), THEN the circuit status is "open". IF (PF ~ 0) and ((Vrms/Irms) < T), THEN the circuit status is "short". PF is the power factor. T is a threshold value.

Large area thermal ablation

Diagnostic capsule and method of use

Methods and systems for determining physiologic characteristics for treatment of the esophagus

A method and apparatus for treating abnormal mucosa in the esophagus is disclosed, such that the depth of the treated tissue is controlled. The depth of ablation is controlled by monitoring the tissue impedance and/or the tissue temperature. A desired ablation depth is also achieved by controlling the energy density or power density, and the amount of time required for energy delivery. A method and apparatus is disclosed for measuring an inner diameter of a body lumen, where a balloon is inflated inside the body lumen at a fixed pressure.

Catheter sleeve for cryotherapy system

The present disclosure relates generally to the field of cryotherapy. In particular, the present disclosure relates to catheter sleeves for cryotherapy systems that inhibit and remove build-up and backflow of undesired material in the working channel of endoscopes during cryotherapy treatments.

COOLING AND REFRIGERATION BASED ON VACUUM-DRIVEN WATER EVAPORATION

Apparatus for cooling an object, space, or tissues of a patient. A vacuum chamber is designed to be placed against the object or space to be cooled, or against a patient to be treated. A water sprayer is configured to spray water into the vacuum chamber or against a cooling wall of the chamber. A vacuum pump and control are designed to maintain vacuum below ambient pressure in the vacuum chamber sufficient to cause accelerated evaporation of the water and cooling to a temperature desired for cooling of the object, space, or patient.

ELECTRO-CAUTERY CATHETER

This invention is an integrated catheter assembly for enabling diverse endoscopic in situ therapies. The assembly includes a catheter (12) with an irrigation fluid lumen, a distal electrode tip portion (20) that acts as a hemostat, and a cutting wire (23) for making incisions in or ablating tissue. A cutting wire hub (21) provides a sealing entrance for a cutting wire. An operator (24) enables the physician to displace the cutting wire between extended, and retracted positions. The cutting wire, and electrode are electrically isolated. The apparatus of the present invention allows the physician to make incisions in or ablate tissue using electrosurgery, irrigate tissue, and cauterize or coagulate tissue without having to remove the apparatus from the working channel of the endoscope.

PRECISION ABLATING DEVICE

Apparatus for treating abnormal mucosa in an alimentary tract are provided. The apparatus includes an ablation structure configured to be removably coupled to an endoscope and a deflection mechanism adapted to move the ablation structure with respect to the endoscope and toward a tissue surface.

ELECTROSURGICAL SYSTEM

HOLLOW BODY CAVITY ABLATION APPARATUS

An ablation apparatus places electrodes at the perimeter of a cavity. In an embodiment, the alternating electric field is used to expose the cavity to enough energy to ablate the cavity. In an embodiment, two modes are used to expose different regions of the cavity to different amount of power for so that the thermal effect is more uniform. In an embodiment, the electrodes have a relatively large surface area so as to avoid charring the cavity, but are shaped so as to fit within a body orifice. For example, the diameter of the sheathed housing the electrodes during penetration may be only 5.5 mm.

CAUTERY CATHETER

A cautery catheter is described having an expandable and electrically conductive mesh that can cauterize treatment sites having large effective surface areas. The mesh is composed of interwoven filaments which are aligned with the cautery catheter in an unexpanded state. Reorientation of the filaments of the mesh enables expansion of the mesh. When the expanded mesh contacts the desired treatment area, an electrocautery unit supplies electrical energy to the filaments of expanded mesh to cauterize the treatment site.

SURGICAL WEIGHT CONTROL DEVICE

La présente invention concerne un procédé et un système destinés au traitement thérapeutique de l'obésité. Un premier aspect de l'invention concerne l'identification des nerfs responsables du relâchement des muscles de l'estomac, qui a lieu avant et pendant l'alimentation. Un deuxième aspect de l'invention concerne la possibilité qu'a le médecin d'identifier des centres nerveux dans l'estomac ou le duodénum supérieur, associés à la production des sensations de faim et de satiété. La transmission nerveuse à partir de ces centres nerveux peut être modulée ou complètement bloquée de manière à minimiser la sensation de faim. Un troisième aspect de l'invention concerne la possibilité qu'a un médecin de réduire la taille de certaines parties sélectionnées des couches musculaires obliques les plus internes ou des couches musculaires circulaires intermédiaires de l'estomac. Ceci peut être réalisé chez un médecin sous anesthésie locale. La réduction de la taille de ces muscles produit une sensation ...

Auto-aligning ablating device and method of use

An ablation device and methods for use thereof including a support structure adapted to support an ablation structure within an alimentary tract of a patient are provided. The support structure includes a longitudinal support with a longitudinal axis and a rotational support. The rotational support is adapted to permit at least part of the ablation structure to rotate with respect to the longitudinal support's longitudinal axis.

SYSTEMS AND METHODS FOR TREATING PANCREATIC CANCER

A method of treating pancreatic cancer includes: inserting a device into a stomach or a duodenum; securing at least a portion of the device in position relative to the stomach or the duodenum; and delivering ultrasonic energy from the device to treat a target site in a pancreas.

Medical device

A medical device includes: a body electrode disposed in contact with a human body; a tubular instrument having a distal electrode at a distal end portion of an insertion portion inserted into the body and a plurality of active joints for changing an orientation and a position of the distal end portion at the insertion portion; a plurality of joint position information detecting sections for respectively acquiring joint position information of the plurality of active joints; and a storage section for storing the joint position information respectively acquired by the plurality of joint position information detecting sections based on conduction between the body electrode and the distal electrode.

Electro-cautery catheter

An integrated catheter assembly for enabling diverse endoscopic in situ therapies. The assembly includes a catheter with an irrigation fluid lumen, a distal electrode tip portion that acts as a hemostat, and a cutting wire for making incisions in or ablating tissue. A cutting wire hub provides a sealing entrance for a cutting wire. An operator enables the physician to displace the cutting wire between extended and retracted positions. The cutting wire and electrode are electrically isolated. In addition, the catheter assembly may include a planar tip which, when extended outside the distal end of the assembly, assumes a substantially flat unbiased configuration for use. The apparatus of the present invention allows the physician to make incisions in or ablate tissue using electrosurgery, irrigate tissue, and cauterize or coagulate tissue without having to remove the apparatus from the working channel of the endoscope.

Bipolar endoscopic device with parallel electrodes for endoluminal and transluminal haemostasis

A surgical device including a shaft defining an axis and having a distal end and a proximal end, a first elongated electrode pivotally connected to the distal end of the shaft and deployable from a first configuration, wherein the first electrode is generally coaxially aligned with the axis, to a second configuration, wherein the first electrode is generally perpendicular relative to the axis, and a second elongated electrode pivotally connected to the distal end of the shaft and deployable from a first configuration, wherein the second electrode is generally coaxially aligned with the axis, to a second configuration, wherein the second electrode is generally perpendicular relative to the axis, wherein the first elongated electrode is adapted to extend radially relative to the second elongated electrode.

ELECTROSURGICAL ROTATING CUTTING DEVICE

Medical instrument including an end effector having a medical treatment electrode

A medical instrument includes a flexible sheath and an end effector. The sheath has a distal end. The end effector is attached to the sheath proximate the distal end and is insertable into a patient. The end effector includes opposing and retroflexed first and second jaws and includes at least one medical-treatment electrode supported by the second jaw. At least one of the first and second jaws is rotatable. In one implementation, the at-least-one medical-treatment electrode is operatively connectable to a medical radio-frequency (RF) generator. In one application, the end effector is insertable into the esophagus of a patient. In one employment, the first and second jaws are adapted to grasp a working end of a flexible tube of an endoscope.

ELECTRO-CAUTERY CATHETER

This invention is an integrated catheter assembly for enabling diverse endoscopic in situ therapies. The assembly includes a catheter (12) with an irrigation fluid lumen, a distal electrode tip portion (20) that acts as a hemostat, and a cutting wire (23) for making incisions in or ablating tissue. A cutting wire hub (21) provides a sealing entrance for a cutting wire. An operator (24) enables the physician to displace the cutting wire between extended, and retracted positions. The cutting wire, and electrode are electrically isolated. The apparatus of the present invention allows the physician to make incisions in or ablate tissue using electrosurgery, irrigate tissue, and cauterize or coagulate tissue without having to remove the apparatus from the working channel of the endoscope.

СПОСОБ ОСТАНОВКИ КРОВОТЕЧЕНИЙ ИЗ ЖЕЛУДОЧНО-КИШЕЧНОГО ТРАКТА И ЭЛЕКТРОД ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

FIELD: medicine; medical engineering. SUBSTANCE: method involves subjecting bleeding mucous membrane surface to radio wave treatment at 3.8-4 MHz frequency and power of 4.5-6.5 W using electrode brought through endoscope and connected to radio wave source by means of wire. Mucous membrane defect surface is treated in chess-board order acting upon each point during 1 s. The electrode is manufactured as plastic tube having headpiece on distal end for holding removable end pieces and electric plug on the proximal end for making connection to the radio wave source. Stainless steel wire is mounted along the whole electrode length to let radio waves pass, and is connected to the plug on the proximal end and to the headpiece for holding removable end pieces on distal end. The headpiece is manufactured as conic or spherical cap. EFFECT: enhanced effectiveness of treatment. 4 cl, 1 dwg 9503$ сс ПЧ сэ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК? ВИ "” 2 238 056. 13) С2 А 61 В 18/12 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 2002110641/14, 23.04.2002 (24) Дата начала действия патента: 23.04.2002 (43) Дата публикации заявки: 10.12.2003 (45) Дата публикации: 20.10.2004 (56) Ссылки: КУ 2111007 СУ, 20.05.1998. КЦ 2102932 СЛ, 27.01.1998. КУ 2152230 СЛ, 10.07.2000. 5Ц 1223894 А, 15.04.1986. (98) Адрес для переписки: 125040, Москва, Ленинградский пр-т, 14, корп.5, кв.288, Г.К.Наседкину (72) Изобретатель: Наседкин Г.К. (КЦ) (73) Патентообладатель: Наседкин Геннадий Конрадович (КИ) (54) СПОСОБ ОСТАНОВКИ КРОВОТЕЧЕНИЙ ИЗ ЖЕЛУДОЧНО-КИШЕЧНОГО ТРАКТА И ЭЛЕКТРОД ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ (57) Изобретение относится к медицине и предназначено для остановки кровотечений из желудочно-кишечного тракта. На поверхность кровоточащей СЛИЗИСТОЙ воздействуют радиоволнами частотой 3,8-4 МГц и мощностью 4,5-6,5 Вт с помощью электрода, проведенного через эндоскоп и соединенного проволокой с источником радиоволн. Поверхность дефекта слизистой обрабатывают в ...

Способ альтернативного лечения инсулин-продуцирующей доброкачественной опухоли поджелудочной железы

Изобретение относится к медицине, а именно к эндокринной хирургии, и может быть использовано для альтернативного лечения инсулин-продуцирующей доброкачественной опухоли поджелудочной железы. Для этого проводят исследование уровня иммунореактивного инсулина и С-пептида. При показателях, превышающих их референсные значения, осуществляют выявление локализации опухоли и радиочастотную термоабляцию найденной опухоли под контролем гормональных показателей. Предварительно перед радиочастотной термоабляцией проводят медикаментозную терапию октреотидом 0,1 мг подкожно 1 раз в сутки в течение 3 дней. Радиочастотную термоабляцию проводят в два этапа. На первом этапе под контролем интраоперационного ультразвукового исследования проводят радиочастотную термоабляцию центральной части найденной локализованной опухоли в течение 3 минут при температуре 85-100 градусов Цельсия и мощности 70-90 Вт. Воздействие осуществляют при введенных на глубину 0,4-0,7 см проводниках радиочастотного электрода. На втором ...

SYSTEM ZUM BEHANDELN VON ABNORMALEM GEWEBE IN DER MENSCHLICHEN SPEISERÖHRE

Electrosurgical snare

A surgical snare 400 comprising: a coaxial cable 411 having inner and outer conductors 406,412; a head assembly 419 at a distal end of the coaxial-cable 411; and a snare wire 403. The head-assembly 419 comprises: an end cap 408 having an energy transfer structure connected to inner-conductor 406; and channels 413,414 in which the snare-wire 403 is disposed forming a retractable loop beyond the energy-transfer-structure. Coaxial-cable 411 may convey microwave energy where the energy-transfer-structure is configured as a microwave radiating antenna. Coaxial-cable 411 may convey radio frequency energy. The snare-wire 403 may be slidably mounted in the head-assembly 419, where the retractable loop is retractable toward the energy-transfer-structure and where the energy-transfer-structure may provide a reaction surface having a sharpened edge for contacting the fully retracted loop, so facilitating the cutting of biological tissue captured by snare-wire 403. The head-assembly 419 may include ...

Cautery catheter

A cautery catheter is described having an expandable and electrically conductive mesh that can cauterize treatment sites having large effective surface areas. The mesh is composed of interwoven filaments which are aligned with the cautery catheter in an unexpanded state. Reorientation of the filaments of the mesh enables expansion of the mesh. When the expanded mesh contacts the desired treatment area, an electrocautery unit supplies electrical energy to the filaments of expanded mesh to cauterize the treatment site.

System and method of treating abnormal tissue in the human esophagus

Capsule and method for treating or diagnosing conditions or diseases of the intestinal tract

Apparatus and method for deploying a cutting element during an endoscopic mucosal resection

Microwave energy-delivery device and system

MICROWAVE ENERGY-DELIVERY DEVICE AND SYSTEM Abstract An ablation system including an image database storing a plurality of computed tomography (CT) images of a luminal network and a navigation system enabling, in combination with an endoscope and the CT images, navigation of a locatable guide (1032) and an extended working channel to a point of interest. The system further includes one or more fiducial markers, placed in proximity to the point of interest and a percutaneous microwave ablation device (20) for applying energy to the point of interest.

Microwave energy-delivery device and system

MICROWAVE ENERGY-DELIVERY DEVICE AND SYSTEM Abstract An ablation system including an image database storing a plurality of computed tomography (CT) images of a luminal network and a navigation system enabling, in combination with an endoscope and the CT images, navigation of a locatable guide (1032) and an extended working channel to a point of interest. The system further includes one or more fiducial markers, placed in proximity to the point of interest and a percutaneous microwave ablation device (20) for applying energy to the point of interest.

ELECTROSURGICAL SYSTEM

Various embodiments disclose an electrosurgical system for treating biological tissue. The electrosurgical system comprises: an electrosurgical generator configured to supply microwave energy; a surgical scoping device having a steerable insertion cord for minimally invasive insertion to a treatment site within a body; and an electrosurgical instrument dimensioned to fit within an instrument channel that is located within the insertion cord. The electrosurgical instrument comprises: a flexible coaxial cable arranged to convey the microwave energy; and a radiating tip portion connected at a distal end of the coaxial cable and configured to receive the microwave energy, wherein the radiating tip portion has a maximum outer diameter that is 1.0 mm or less, and wherein the maximum outer diameter of the radiating tip portion is smaller than an outer diameter of the coaxial cable. Also, the radiating tip portion comprises: a proximal coaxial transmission line for conveying the microwave energy ...

ELECTROSURGICAL INSTRUMENT WITH NON-LIQUID THERMAL TRANSFER

Various embodiments provide an electrosurgical instrument comprising: a flexible coaxial transmission line arranged to convey microwave energy; a radiating tip portion connected at a distal end of the flexible coaxial transmission line and configured to receive the microwave energy, the radiating tip portion comprising: a distal coaxial transmission line for conveying the microwave energy; and a needle tip mounted at a distal end of the distal coaxial transmission line, the needle tip being arranged to deliver the microwave energy into biological tissue; and a heat sink mounted at an interface between the flexible coaxial transmission line and radiating tip portion. The heat sink is in thermal communication with a proximal end of the distal coaxial transmission line and configured to draw thermal energy from the radiating tip portion. Also, a maximum outer diameter of the radiating tip portion is smaller than an outer diameter of the flexible coaxial transmission line. An associated electrosurgical ...

MICROWAVE ENERGY-DELIVERY DEVICE AND SYSTEM

A microwave ablation device including a handle assembly fluidly enclosing a portion of a microwave feedline and a cooling assembly and a tubular member extending from the handle assembly and enclosing a distal portion of the feedline and the cooling assembly. The distal portion of the feed line terminates in a radiating section and the distal portion of the cooling assembly is configured to cool the radiating section. The microwave ablation device also includes a flexible cable assembly connected to the handle assembly and enclosing a proximal portion of the feedline, the flexible cable assembly configured to connect the feedline to an energy source, and a temperature sensing system associated with the cable assembly and configured to sense a temperature profile of tissue surrounding the distal radiating end of the tubular member.

MICROWAVE ENERGY-DELIVERY DEVICE AND SYSTEM

An ablation system including an image database storing a plurality of computed tomography (CT) images of a luminal network and a navigation system enabling, in combination with an endoscope and the CT images, navigation of a locatable guide and an extended working channel to a point of interest. The system further includes one or more fiducial markers, placed in proximity to the point of interest and a percutaneous microwave ablation device for applying energy to the point of interest.

STEERABLE MEDICAL INSTRUMENT

A steerable medical instrument (136) includes a control handle (144), a s haft (140), steering control wires, and an end effector (100) at the distal end of the shaft. The end effector is a separate component engineered to dis tribute the stress and strain of bending moments along the length of the end effector to achieve predicable, repeatable, fine motion control over the di stal end of the instrument. The end effector may be customized for any medic al application. For example, the end effector may comprise a grasping device , a cutting devise, a snare, a specimen retrieval device, or a wound closure device (such as a stapler).

BIPOLAR ELECTROSURGICAL INSTRUMENT INCLUDING A PLURALITY OF BALLOON ELECTRODES

A bipolar electrosurgical instrument is described which may be used for heating the inner lining of a lumen or cavity within a patient. In particular, the present invention is directed to an electrosurgical instrument including a flexible elongated tube having a proximal and a distal end, a first balloon electrode attached to the distal end of the flexible elongated tube. The first balloon electrode includes a first expandable sleeve formed from an electrically insulating material and a first electrically conductive fluid in the expandable sleeve. A first electrode is positioned in electrical contact with the first electrically conductive fluid. A return balloon electrode is spaced proximally from the first balloon electrode, wherein the return balloon electrode includes a second expandable formed from an electrically insulating material and a second electrically conductive fluid disposed within the second expandable sleeve. A return electrode is positioned in electrical contact with the ...

INSTRUMENT FOR ENDOSCOPIC TREATMENT

내시경적 점막하층 박리술에 있어서 점막하층을 절단하는데에 적합한 내시경용 처치구를 제공하는 것으로, 내시경용 처치구는 체내에 삽입되는 삽입부의 선단에 절단 수단을 갖는 처치부를 구비한다. 처치부의 본체는 산부와 곡부를 갖는 톱니형상으로 형성되고, 그 곡부에 절단 수단이 되는 전극판이 형성된다. 내시경

instrumento de extirpação eletrocirúrgica

aparelho de ablação de cavidade corporal

ELECTROPORATION ABLATION APPARATUS, SYSTEM, AND METHOD

A surgical instrument, such as an endoscopic or laparoscopic instrument, includes an ablation device. The ablation device includes an elongate relatively flexible member having a proximal end and a distal end, the flexible member includes at least a first working channel. A first and second electrode extends from a working channel at the distal end of the flexible member. The first and second electrodes are adapted to be endoscopically located in a tissue treatment region. The first and second electrodes are adapted to couple to an electrical waveform generator to receive an irreversible electroporation electrical waveform sufficient to ablate tissue located between the first and second electrodes.

ELECTROSURGICAL FORCEPS FOR DELIVERING MICROWAVE ENERGY FROM A NON-RESONANT UNBALANCED LOSSY TRANSMISSION LINE STRUCTURE

Electrosurgical forceps for delivering microwave energy into biological tissue from a non-resonant unbalanced lossy transmission line structure located within or formed by the jaws of the forceps. The transmission line structure may be formed across the gap between the jaw element by opposed conductive elements, which are respectively electrically connected to inner and outer conductors of a coaxial cable. Alternatively, each jaw element may comprise its own lossy transmission line, whereby a power splitter is used to divide microwave energy from the coaxial cable. The forceps may be used endoscopically in the gastrointestinal tract or laparoscopically or in open surgery.

Method for performing an endoscopic mucosal resection

A method for resecting tissue from an organ of a patient, the organ being comprised of at least a first layer, a second layer and a third layer, the method including the steps of providing an EMR device with access to the organ, the EMR device including at least one deployable cutting element disposed on at least one moveable arm, identifying a target tissue area for resection, forming an incision through the first and second layers without penetrating the third layer, positioning the EMR device through the incision such that the device is positioned between the first third layers, advancing the moveable arm between the first and third layers, deploying the cutting element such that the cutting element is advanced in the direction of the first layer and away from the third layer and, while the EMR device is positioned between the first and third layers, cutting through the first layer.

Method and apparatus for marking a lumenal wall

A marking apparatus includes a selectively inflatable balloon. The balloon includes an external lumen adapted for connection to a vacuum source. The external lumen includes ports for creating a vacuum at the ports sufficient to draw walls of the gastric cavity into contact with the external lumen. The balloon is further provided with RF energy delivery devices. In accordance with an alternate embodiment, a marking apparatus includes an elongated, hollow body, the hollow body including a proximal end and a distal end. The hollow body includes at least one suction trough in which a plurality of holes is disposed to draw suction on tissue. The at least one suction trough extends along a substantial portion of the hollow body as it extends from its distal end to its proximal end.

Methods and apparatus for treatment of obesity with an ultrasound device movable in two or three axes

Method and apparatus for treating obesity by an energy delivery device, such as a high focus ultrasound transducer, mounted for movement along two or three axes relative to the esophagus to deliver transesophageal energy to interrupt the function of vagal nerves. Preferably, movement along a longitudinal axis of the esophagus changes the site to which the energy is directed and movement transversely along a radius of the esophagus focuses the energy on a vagal nerve. The third degree of freedom relative to the esophagus is to rotate the transducer about the longitudinal axis of the esophagus.

Capsule and method for treating or diagnosing the intestinal tract

A device and method for mapping, diagnosing and treating the intestinal tract is provided using a capsule passing through the intestinal tract. Further, a capsule tracking system is provided for tracking a capsule's location along the length of an intestinal tract as various treatment and/or sensing modalities are employed. In one variation, an acoustic signal is used to determine the location of the capsule. A map of sensed information may be derived from the pass of a capsule. Capsules may be subsequently passed through to treat the intestinal tract at a determined location along its length. One variation uses an electrical stimulation capsule to treat and/or diagnose a condition in the intestinal tract.

Tissue Suturing Device

Provided is a surgical instrument that is substitutable for an operation of placing each stitch with a threaded needle or a stapler. It is confirmed that, in a tissue suturing device including a clamping section, and a protruding section including a central conductor and/or an external conductor for applying a microwave, the protruding section and the clamping section bring fragmentary portions of tissues to be sutured into contact or overlap with each other, and coagulate and/or fix contact or overlap portions with the microwave, to thereby stitch the tissues to be sutured.

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. 116-. (canceled)17. A method of treating tissue by applying non-ablative radiofrequency energy comprising the steps of:a. providing a device having a plurality of electrodes movable between a retracted position and an advanced position, the plurality of electrodes having structure to maintain an equidistant radial spacing and to maintain longitudinal alignment of penetrating tips of the electrodes in the retracted position;b. inserting the device into a sphincter of a patient;c. advancing the electrodes to penetrate sphincter tissue at a first location, the electrodes having penetrating tips longitudinally aligned in the advanced position and further being equidistantly radially spaced in the advanced position;d. applying radio frequency energy to the electrodes to apply radiofrequency energy to tissue in a first area of the penetrating tips of the electrodes, the radiofrequency energy applied so a minimum distance is maintained between regions of sphincter tissue treated by the electrodes;e. retracting the electrodes within the device;f. rotating the device to a second position;g. advancing the electrodes from the device so that the penetrating tips penetrate sphincter tissue at a second location, the penetrating tips of the electrodes being longitudinally aligned and maintained in an equidistant radial spacing; andh. applying radiofrequency energy to the electrodes to apply radiofrequency energy to sphincter tissue in a second area of the penetrating tips of ...

METHOD FOR TREATING GASTRO ESOPHAGEAL REFLUX DISEASE

An endoscopic treatment method includes: inserting an endoscope into a digestive tract; forming a damaged area in at least a portion of the digestive tract along a circumferential direction by performing cauterizing while keeping a mucosal layer by observing with the endoscope; and forming an incomplete stenosis in the digestive tract, while restoring the damaged area, wherein the damaged area is formed by causing damage to a mucosal base layer, the mucosal base layer having an interface that contacts a submucosal layer.

Instrument for endoscopic treatment

A treatment instrument for an endoscope is provided that is suitable for cutting submucosa in endoscopic submucosal dissection. The treatment instrument for an endoscope includes a treatment portion having a cutting unit at a tip of an insertion portion that is to be inserted into the body. The main unit of the treatment portion is formed in a sawtooth shape having a peak portion and a valley portion. An electrode plate serving as the cutting unit is provided in the valley portion.

MEDICAL SYSTEM AND METHOD OF USE

An instrument and method for tissue thermotherapy including an inductive heating means to generate a vapor phase media that is used for interstitial, intraluminal, intracavity or topical tissue treatment. In one method, the vapor phase media is propagated from a probe outlet to provide a controlled vapor-to-liquid phase change in an interface with tissue to thereby apply ablative thermal energy delivery.

Instrument for endoscopic treatment

A treatment instrument for an endoscope is provided that is suitable for cutting submucosa in endoscopic submucosal dissection. The treatment instrument for an endoscope includes a treatment portion having cutting means at a tip of an insertion portion that is to be inserted into the body. The main unit of the treatment portion is formed in a toothed-wheel shape which alternately has a peak portion and a valley portion where the cutting means is provided in the valley portions.

MEDICAL INSTRUMENTS FOR PERFORMING MINIMALLY-INVASIVE PROCEDURES

Patent RU2018105365A3

ВИ“? 2018105365” АЗ Дата публикации: 24.12.2020 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2018105365/14(008203) 13.02.2018 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 17160265.9 10.03.2017 ЕР* Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) ИНСТРУМЕНТ И СИСТЕМА ДЛЯ АБЛЯЦИИ Заявитель: ЭРБЕ ЭЛЕКТРОМЕДИЦИН ГМБХ, РЕ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) А61М 35/00 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Аб1М 35/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): СТРО, СМГРА, РЕРАТБЗ пес, РУУРТ, Е-ГлЬгагу, ЕАРАТЗУ, Езрасепе, Соозе, }]-Р]а(Рав, РКУ, РАТЕМТСОРЕ, Ра еагсь, РиБМечд, КОРТО, КатЫег, СОР, ЦЗРТО, М\МопдУ/1дезслепсе, Уапдех, БД "Российская медицина", БД ВИНИТИ, БЕН РАН, РГБ 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с ...

СПОСОБ И АППАРАТ ДЛЯ НАНЕСЕНИЯ РАЗМЕТКИ НА ВНУТРЕННЕЙ ПОВЕРХНОСТИ СТЕНКИ ЖЕЛУДКА

... 1. Аппарат для нанесения разметки, включающий: ! избирательно надуваемый баллон; ! причем баллон имеет наружный просвет, предназначенный для подключения к источнику создания вакуума, где наружный просвет включает порты, предназначенные для создания в районе портов вакуума, достаточного для того, чтобы способствовать контакту стенок полости желудка с наружным просветом; ! при этом баллон дополнительно снабжен источниками радиочастотной энергии. ! 2. Аппарат для нанесения разметки по п.1, в котором баллон закреплен на дистальном конце полой трубки. ! 3. Аппарат для нанесения разметки по п.2, в котором внутри полой трубки имеется обтюратор. ! 4. Аппарат для нанесения разметки по п.1, в котором баллон является прозрачным. ! 5. Аппарат для нанесения разметки по п.1, в котором баллон имеет переднюю и заднюю стенки, соединенные при помощи плоского краевого элемента, проходящего по окружности баллона. ! 6. Аппарат для нанесения разметки по п.5, в котором источники радиочастотной энергии расположены ...

КАМЕРА-КАПСУЛА С РЕГУЛИРУЕМЫМ ОСВЕЩЕНИЕМ ОКРУЖАЮЩИХ ТКАНЕЙ

1. Проглатываемая капсула для визуализации и/или лечения in vivo одной или более исследуемых областей поражения тканей в желудочно-кишечном тракте животного или человека, при этом упомянутая капсула содержит ! датчик изображения; ! систему линз для фокусирования исследуемых изображений на датчик изображения; ! по меньшей мере один источник света для обеспечения освещения тканей желудочно-кишечного тракта, причем этот по меньшей мере один источник света может иметь возможность терапевтического воздействия с использованием оптики на области поражения тканей; ! изменяемую систему линз, расположенную перед по меньшей мере одним источником света, причем эта изменяемая система линз содержит средства управления лучом и средства установки фокуса для направления и фокусирования световых лучей от указанного по меньшей мере одного источника света на области поражения тканей; ! блок управления, взаимодействующий с датчиком изображения, с указанным по меньшей мере одним источником света, а также изменяемой системой линз, причем этот блок управления содержит средства хранения изображений, средства обработки и средства передачи изображения; при этом блок управления устанавливает корреляцию между сохраненными изображениями, полученными от датчика изображения по мере перемещения капсулы по желудочно-кишечному тракту, и управляет средствами управления лучом и средствами установки фокуса изменяемой системы линз для обеспечения направленности и фокусирования световых лучей от указанного по меньшей мере одного источника света на области поражения тканей; ! блок питания для снабжения энергией датчика изображения, РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2009 106 033 (13) A (51) МПК A61B 1/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2009106033/14, 12.04.2007 (71) Заявитель(и): КОНИНКЛЕЙКЕ ФИЛИПС ЭЛЕКТРОНИКС,Н.В. (NL) (30) Конвенционный приоритет: 24.07.2006 US 60/820,124 (43) Дата публикации заявки: ...

Electrosurgical Forceps For Delivering Microwave Energy From a Non-Resonant Unbalanced Lossy Transmission Line Structure

Monopolar plasma coagulation radial antenna tip design

Handpiece for an electrosurgical instrument

A handpiece 1000 for controlling movement of an electrosurgical device along a lumen of a catheter comprises a second section 1008 having a holder 1014 for the end of the catheter and telescopically connected between both a first section 1002, having a connector 1006 between the handpiece and an instrument port of a surgical scoping device, and a third section 1016 having a coaxial connector 1020 receiving an end of a coaxial cable of an electrosurgical device conveyed within the catheter lumen. Relative movement between the second and first sections controls the length of catheter that extends out of the handpiece and relative movement between the third and second sections controls a relative position of the coaxial cable within the catheter to enable a length of the catheter to be adjusted independently of the position of the electrosurgical device in the catheter in order to fit within the instrument channel of a surgical scoping device.

HIGH FREQUENCY DEVICE FOR SURGICAL INTERFERENCES

SYSTEM FOR TREATING ABNORMAL FABRIC IN THE HUMAN ESOPHAGUS

ELECTRICALSURGICAL TREATMENT DEVICE

INSTRUMENT FOR ENDOSCOPES

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 ).

Tissue Sealing Forceps

A forceps includes an end effector assembly having first and second jaw members. One (or both) of the jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. One (or both) of the jaw members includes an opposed jaw surface having an electrically-conductive tissue sealing plate disposed thereon. The electrically-conductive tissue sealing plate includes a first portion configured to conduct energy through tissue grasped between the jaw members to create a main tissue seal and a second portion including a plurality of spaced-apart fingers extending from the first portion. The second portion is configured to conduct energy through tissue grasped between the jaw members to create an auxiliary tissue seal extending from the main tissue seal for reducing stress concentrations adjacent the main tissue seal.

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. 1. A method for treating ulcerative colitis in a patient , the method comprising:delivering energy to a tissue surface of a tissue within the large intestine of the patient; andablating the tissue with the delivered energy to a controlled depth.2. The method of claim 1 , wherein ablating the tissue comprises removing a biofilm layer at least partially covering the tissue surface.3. The method of claim 1 , wherein ablating the tissue comprises removing a biofilm layer at least partially penetrating below the tissue surface.4. The method of claim 1 , wherein ablating the tissue comprises coagulating tissue within the mucosal layers of the tissue.5. The method of claim 1 , wherein ablating the tissue comprises coagulating tissue below the mucosal layers of the tissue.6. The method of claim 1 , wherein ablating the tissue comprises ablating under conditions selected to initiate regrowth of healthy mucosal tissue.7. The method of claim 1 , wherein ablating the tissue comprises defunctionalizing degenerated arborized nerve fibers within the tissue.8. The method of claim 1 , wherein ablating the tissue to a controlled depth comprises controlling a duration of the delivery of energy.9. The method of claim 1 , wherein ablating the tissue to a controlled depth comprises controlling an energy density of the delivered energy.10. The method of claim 1 , wherein ablating the tissue to a controlled depth comprises controlling a temperature of the tissue surface during the delivery of energy.11. The method of claim 1 , wherein delivering energy to the tissue surface comprises delivering energy into crypts within the tissue.12. The method of claim 1 , ...

Methods, systems and devices for performing multiple treatments on a patient

Methods, systems and devices for treating a patient include performing a first treatment to treat a first portion of tissue and performing a second treatment to treat a second portion of tissue. The second portion of tissue is treated at least twenty-four hours after the first portion of tissue is treated. In particular embodiments, the first portion of tissue includes duodenal tissue, and the second portion of tissue includes duodenal or other gastrointestinal tissue.

SYSTEMS AND METHODS FOR TREATING TISSUE WITH RADIOFREQUENCY ENERGY

A device for applying radiofrequency energy for sphincter treatment comprising a flexible outer tube, an expandable basket having a plurality of arms movable from a collapsed position to an expanded position, and a plurality of electrodes movable with respect to the arms from a retracted position to an extended position. An advancer is slidably disposed within the outer tube to move the plurality of electrodes to the extended position. An actuator moves the advancer from a first position to a second position to advance the plurality of electrodes. An aspiration tube extends within the outer tube. An assembly includes an aspiration disabler having a first position to enable aspiration from a distal portion of the aspiration tube to a proximal portion and a second position to disable aspiration. 116-. (canceled)17. A method of treating gastrointestinal reflux disease comprising:providing a treatment device having a plurality of electrodes and an assembly having a disabler for disabling aspiration through an aspiration tube extending within the device, the disabler having a first position to enable aspiration from a distal portion of the aspiration tube to a proximal portion of the aspiration tube, the disabler movable to a second position to disable aspiration to facilitate axial and rotational movement of the treatment device within tissue and to limit undesired movement of tissue which can cause overtreatment of tissue and tissue ablation;applying radiofrequency energy to the plurality of electrodes to thermally treat tissue below a tissue ablation threshold and create a plurality of tissue lesions along axially spaced tissue levels within the upper gastrointestinal tract;monitoring tissue temperature throughout the applying of radiofrequency energy; andregulating power ensuring in response to the monitoring of tissue temperature that the tissue temperature does not exceed a predetermined value which would cause tissue ablation and/or tissue necrosis.18. The method ...

SYSTEMS AND METHODS TO BLOCK OR INHIBIT GAS PROGRESSION DURING SPRAY CRYOTHERAPY

The present disclosure relates generally to the field of cryoablation. In particular, the present disclosure relates to cryoablation systems (e.g., cryospray systems, cryogenic ablation, cryosurgery systems etc.) that prevent or significantly inhibit cryospray gases from accumulating and progression distally beyond a specific region within a body lumen. 1. A cryoablation system , comprising: a proximal portion,', 'a distal portion, and', 'at least one working channel extending therebetween;, 'an endoscope comprising a proximal end,', 'a distal end configured for the output of cryogen spray, and', 'a lumen extending therebetween;, 'a cryogen delivery catheter disposable within a working channel of the endo scope, the cryogen delivery catheter comprisingan expandable member moveable between a deflated configuration and an inflated configuration and including a conduit comprising a proximal inlet and a distal outlet, wherein the distal outlet is fluidly connected to an interior of the expandable member; anda vent tube configured for passive or active venting of a gas therethrough that extends distally beyond the distal portion of the endoscope and through the expandable member.2. The cryoablation system of claim 1 , wherein the expandable member is configured to extend distally beyond the distal portion of the endoscope.3. The cryoablation system of claim 1 , wherein the expandable member moves from the deflated configuration to the inflated configuration by flowing a fluid into the interior of the expandable member.4. The cryoablation system of claim 1 , wherein the expandable member comprises a compliant material selected from the group consisting of silicone rubbers claim 1 , polyurethanes claim 1 , butyl rubbers claim 1 , latexes claim 1 , styrene-isobutylene-styrene block copolymers and EPDM.5. The cryoablation system of claim 1 , wherein the expandable member conforms to the shape of a body lumen when in the inflated configuration and prevents or substantially ...

Electrosurgical devices with a single conductive tubular element for accessing anatomical structures

An electrosurgical medical device may include a conductive tubular element disposed about an outer surface of an elongate tubular member at a distal portion of the tubular member. The conductive tubular member may be delivered to a treatment site of a gastrointestinal (GI) tract of a patient and electrically activated. While electrically activated, the conductive tubular element may create an opening in a wall of the GI tract and a pseudocyst. After the incision is made, the conductive tubular element may be withdrawn from the treatment site and a drainage device may be positioned in the incision for drainage of the pseudocyst.

MICROWAVE ENERGY-DELIVERY DEVICE AND SYSTEM

An ablation system including an image database storing a plurality of computed tomography (CT) images of a luminal network and a navigation system enabling, in combination with an endoscope and the CT images, navigation of a locatable guide and an extended working channel to a point of interest. The system further includes one or more fiducial markers, placed in proximity to the point of interest and a percutaneous microwave ablation device for applying energy to the point of interest. 120-. (canceled)21. An ablation system , comprising: a feedline including an outer conductor;', 'a balun operably coupled to the outer conductor of the feedline; and, 'a microwave ablation device includinga temperature sensor disposed in proximity to the balun and configured to sense a temperature of a portion of the feedline;a fluid delivery system configured to operably couple to the microwave ablation device and provide a fluid to the microwave ablation device; andan energy source configured to operably couple to the microwave ablation device and provide microwave energy to the microwave ablation device.22. The ablation system according to claim 21 , wherein the fluid delivery system includes a cooling unit configured to operably couple to the microwave ablation device and cool the fluid provided to the microwave ablation device.23. The ablation system according to claim 21 , wherein the balun is electrically shorted to the outer conductor.24. The ablation system according to claim 21 , wherein the energy source is configured to provide microwave energy to the microwave ablation device in response to the temperature of the portion of the feedline.25. The ablation system according to claim 21 , wherein the microwave ablation device further includes an outer tubular member disposed around the feedline and an inner tubular member disposed adjacent the feedline.26. The ablation system according to claim 25 , wherein the feedline claim 25 , the inner tubular member claim 25 , and the ...

MUCOUS MEMBRANE LIFTING INSTRUMENT FOR ENDOSCOPE AND ENDOSCOPE TREATMENT SYSTEM

A mucous membrane lifting instrument for an endoscope includes a first support portion which has an outer circumference surface and a longitudinal axis; a second support portion which is provided at a position spaced from the outer circumference surface of the first support portion, and has an outer circumference surface and a longitudinal axis; a pressing portion which has a proximal end and a distal end connected to the proximal end thereof and positioned more distally than the distal end portion of the endoscope; a lifting portion which is connected to the distal end of the pressing portion, extended from the distal end of the pressing portion, and passes through the space between the first support portion and the second support portion; and an attachment member configured to attach both of the first pressing portion and the second pressing portion to the endoscope. 1. A mucous membrane lifting instrument for an endoscope , comprising:a first support portion which has an outer circumference surface and a longitudinal axis extending distally from a distal end portion of an endoscope;a second support portion which is provided at a position spaced from the outer circumference surface of the first support portion, and has an outer circumference surface and a longitudinal axis extending distally from the distal end portion of the endoscope; a first pressing portion which has an outer circumference surface and is extended distally from the distal end portion of the endoscope, and', 'a second pressing portion which is disposed at a position spaced from the outer circumference surface of the first pressing portion, has an outer circumference surface, and is extended distally from the distal end portion of the endoscope;, 'a pressing portion which has a proximal end supported by the distal end portion of the endoscope, and has a distal end connected to the proximal end thereof and positioned more distally than the distal end portion of the endoscope, wherein the pressing ...

SYSTEM FOR MARKING A LOCATION FOR TREATMENT WITHIN THE GASTROINTESTINAL TRACT

A device and method for mapping, diagnosing and treating the intestinal tract is provided using a capsule passing through the intestinal tract. Further, a capsule tracking system is provided for tracking a capsule's location along the length of an intestinal tract as various treatment and/or sensing modalities are employed. In one variation, an acoustic signal is used to determine the location of the capsule. A map of sensed information may be derived from the pass of a capsule. Capsules may be subsequently passed through to treat the intestinal tract at a determined location along its length. One variation uses an electrical stimulation capsule to treat and/or diagnose a condition in the intestinal tract. 1. A system for the controlled delivery of a drug to a selected position in the gastrointestinal tract of a patient , the system comprising:a capsule sized to pass through an intestinal tract of a patient;a transmitter coupled to the capsule, the transmitter configured to transmit a tracking signal between the capsule and a location external to a patient's body to track a position of the capsule within the patient's intestinal tract as the capsule is passing through the intestinal tract;a drug delivery device configured to deliver the drug to the intestinal tract of the patient in response to an actuation signal; anda controller configured to generate the actuation signal to actuate the drug delivery device as the capsule is passing through the intestinal tract at a desired position in the intestinal tract based on the capsule position within the intestinal tract.2. The system of wherein the drug delivery device comprises a pump.3. The system of claim 1 , wherein the drug delivery device comprises a valve or a solenoid.4. The system of claim 1 , wherein the controller is actuable responsive to an external signal.5. The system of claim 4 , wherein the drug delivery device includes an RF receiver for receiving the external signal claim 4 , the RF receiver operably ...

Electrosurgical device and methods

A tissue segmentation device, controller, and methods therefore are disclosed. The device has an active electrode, a return electrode, a mechanical force application mechanism, voltage and current sensors, and a controller. The controller is configured to control a power output of the segmentation device. The controller has a processing component, responsive to the sensors, configured to execute the following: (a) derive a power factor of power applied to the at least one electrode; and (b) responsive to the deriving a power factor, assign a circuit status to a circuit comprising the at least one electrode. IF (PF ≈ 0 ) and ((Vrms/Irms)≧T), THEN the circuit status is “open”. IF (PF ≈ 0 ) and ((Vrms/Irms)<T), THEN the circuit status is “short”. PF is the power factor. T is a threshold value.

Method for endoscopic treatment

A method for endoscopic treatment that performs treatment under an endoscope includes irradiating a subject with first narrow band light having a predetermined peak wavelength, performing mucosal incision on a living tissue after irradiation with the first narrow band light, radiating second narrow band light having a peak wavelength in spectral characteristics in a wavelength band closer to a long wavelength side than the first narrow band light after the mucosal incision, and performing treatment other than the mucosal incision on the living tissue after radiation of the second narrow band light.

DEVICES, SYSTEMS, AND METHODS FOR MINIMALLY INVASIVE MODULATION OF ABDOMINAL TISSUE

Devices, systems, and methods for treating the pancreas are disclosed herein. For example, some aspects of the technology are directed to a method for treating a medical condition affecting the pancreas of a human patient, wherein the method comprises implanting an occlusive device within the pancreatic duct to induce atrophy of pancreatic tissue. 1. A device for treating a medical condition affecting the pancreas of a human patient , the pancreas including a pancreatic duct having a lumen extending therethrough , the method comprising:an elongated member having a proximal region and a distal region, the distal region configured to be endoluminally delivered to a treatment site at or within the pancreatic duct, wherein the distal region is configured to navigate the lumen of the pancreatic duct; andan occlusion element detachably coupled to the distal region of the elongated member, the occlusion element having a collapsed configuration for endoluminal delivery to the treatment site and an expanded configuration for implantation at the treatment site, wherein the occlusion element forms an obstruction within the pancreatic duct lumen while implanted that blocks the flow of fluids into and/or through the pancreatic duct lumen.2. The device of claim 1 , wherein claim 1 , when implanted in the pancreatic lumen claim 1 , the occlusion element induces atrophy of pancreatic tissue.3. The device of claim 1 , wherein claim 1 , when implanted in the pancreatic lumen claim 1 , the occlusion element induces atrophy of pancreatic exocrine tissue.4. The device of claim 1 , wherein claim 1 , when implanted in the pancreatic lumen claim 1 , the occlusion element substantially prevents exocrine duct secretions from entering the pancreatic duct lumen from one or more adjacent exocrine ducts.5. The device of claim 1 , wherein claim 1 , when implanted in the pancreatic lumen claim 1 , the occlusion element substantially prevents exocrine duct secretions from traveling proximally ...

Electrosurgical instrument with otomy feature for a teleoperated medical system

An electrosurgical end effector for a surgical tool to perform teleoperated surgical operations. The electrosurgical end effector comprises a first end effector jaw; a second end effector jaw coupled to the first end effector jaw; and a coupling pin configured to rotatingly couple the first end effector jaw to the second end effector jaw so as to cooperatively rotate open and close about an axis of rotation. The electrosurgical end effector further comprises an actuation mechanism coupled to an end of the first end effector jaw to rotate the first end effector jaw about the coupling pin; an otomy feature coupled to the second end effector jaw; and a first electrical conductor to electrically couple the otomy feature to a generator. In one embodiment, the otomy feature is electrically activated by contact with a cam portion of the first end effector jaw, when opened beyond a predetermined jaw angle.

Systems, devices, and methods for treating metabolic medical conditions

Provided herein are systems for treating a patient, the systems comprising: a treatment device for treating a minimum amount of mucosal tissue of the patient's small intestine. The system is configured to treat a medical condition of the patient. Methods of treating a patient are also provided.

Optical capsule and spectroscopic method for treating and diagnosing the intestinal tract

A device and method for mapping, diagnosing and treating disorders or other diseases, disorders or conditions (e.g., bleeding, ischemic or necrotic tissue, and presence of certain chemicals or substances) of the intestinal tract is provided using a capsule passing through the intestinal tract and sensing optical characteristics as the capsule passes through. Further, a capsule tracking system is provided for tracking a capsule's location along the length of an intestinal tract as various treatment and/or sensing modalities are employed. In one variation, an acoustic signal is used to determine the location of the capsule. A map of optical characteristics may be derived from the pass of a capsule to diagnose the disorder or disease. The capsule or subsequently passed capsules may treat, further diagnose or mark the intestinal tract at a determined location along its length.

Surgical Snare Device

A surgical snare device for use in polypectomy procedures includes a snare loop capable of being deployed with a plurality of precise internal diameters. The device includes a handle with first and second handle assemblies and a collar. The first handle assembly has multiple numerical markings on a side. The second handle assembly is slidable along the first handle assembly to deploy the snare loop from an elongate tubular sheath attached to the distal end of the first handle assembly. When the second handle assembly is slid to a position such that it aligns with one of the numerical markings on the first handle assembly, the snare loop will be deployed with an internal diameter in millimeters that corresponds precisely to the numerical marking. For example, sliding the second handle assembly to a ‘10’ marking will deploy a snare loop having an internal diameter of 10 mm. The collar is positioned just distal to the second handle assembly and is also slidable along the first handle assembly. The collar functions as a depth stop and prevents further distal movement of the second handle assembly.

A light irradiating medical device

A light irradiating medical device comprising: a shaft extending in a longitudinal axis direction thereof and having a lumen extending in the longitudinal axis direction; a first tubular member disposed in the lumen of the shaft and rotatable about a rotation axis parallel to the longitudinal axis direction of the shaft, the first tubular member having a window located in a part of a peripheral wall of a distal portion; and a light guiding tool disposed in a lumen of the first tubular member and movable in the longitudinal axis direction, the light guiding tool including an optical fiber extending in the longitudinal axis direction, the optical fiber including a core, a cladding coating a radially outer portion of the core, and a cladding-absent portion located at a part of a distal portion of the core, and the window allowing passage therethrough of output light from the light guiding tool.

HEAT ABLATION SYSTEMS, DEVICES AND METHODS FOR THE TREATMENT OF TISSUE

A system for treatment target tissue comprises an ablation device and an energy delivery unit. The ablation device comprises an elongate tube with an expandable treatment element. The system delivers a thermal dose of energy to treat the target tissue. Methods of treating target tissue are also provided. 1. (canceled)2. A system for treating target tissue , the system comprising: an elongate tube with a proximal portion, a distal portion, and at least one lumen extending from the proximal portion to the distal portion; and', 'an expandable treatment element mounted to the elongate tube distal portion and in fluid communication with the at least one lumen; and, 'an ablation device comprisingan energy delivery unit constructed and arranged to deliver fluid to the expandable treatment element;wherein the system is constructed and arranged to deliver a thermal dose to target tissue comprising:the energy delivery unit delivering a heated fluid to the expandable treatment element to ablate the target tissue and subsequently delivering a cooling fluid to the expandable treatment element to cool the target tissue, the energy delivery unit further applying a negative pressure to remove fluids from expandable treatment element; andwherein the cooling fluid is delivered to the expandable treatment element at a temperature at least 10° C. below the temperature of the heated fluid.3. The system according to claim 2 , wherein the energy delivery unit delivers hot fluid fill claim 2 , cooling; and emptying cycles by applying the negative pressure to effect complete treatment.4. The system according to claim 2 , wherein the hot and cooling fluids and negative pressure are delivered through the at least one lumen in the elongate tube.5. The system according to claim 2 , wherein the at least one lumen comprises a first lumen for the delivery of fluid to the expandable treatment element claim 2 , and a second lumen for the removal of fluids from the expandable treatment element.6. The ...

Stapler apparatus and methods for use

Apparatus and methods are provided for performing a medical procedure, such as a laparoscopic appendectomy using a stapler apparatus including a reusable handle portion including a shaft include proximal and distal ends, a disposable end effector attached to the distal end of the shaft of the reusable handle carrying one or more staples. For example, the end effector may include first and second jaws movable relative to one another between open and closed positions, the first jaw carrying a cartridge which includes the one or more staples. A Doppler sensor, a cutting element, and, optionally, a thermal element are also provided on the end effector. The end effector is introduced into a patient's body, tissue is positioned/locked between the jaws, and a plurality of staples are deployed into the tissue. The Doppler sensor is used to confirm that blood flow has discontinued in the stapled tissue, and the cutting element is actuated to sever the stapled tissue.

Auto-aligning ablating device and method of use

An ablation device and methods for use thereof including a support structure adapted to support an ablation structure within an alimentary tract of a patient are provided. The support structure includes a longitudinal support with a longitudinal axis and a rotational support. The rotational support is adapted to permit at least part of the ablation structure to rotate with respect to the longitudinal support's longitudinal axis.

Method and Apparatus for Tissue Ablation

Ablation catheters and systems include multiple inline chambers for containing and heating an ablative agent. The heating chamber includes one or more channels to increase the contact surface area of the ablative agent with the walls of the heating chamber to provide more efficient heating. 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.

ELECTROSURGICAL FORMATION OF PSEUDOPOLYPS

Electrosurgical medical systems and methods for maintaining a target tissue portion in a raised position are disclosed. In one embodiment, the target tissue portion may be withdrawn into a distal chamber of an electrosurgical device using a proximal bias. An electrode assembly of the electrosurgical device may contact a base of the target tissue portion. The electrode assembly may apply an electrical current to coagulate the target tissue portion while the proximal bias is being applied. Suction and electrical current may be applied without detaching the target tissue portion from the underlying tissue. 1. An electrosurgical method comprising:positioning a distal end of an elongate tubular member adjacent a target tissue portion of underlying tissue at a treatment site;applying a proximal bias to the target tissue portion to withdraw the target tissue portion into a distal chamber of the elongate tubular member without detaching the target tissue portion from the underlying tissue, wherein the target tissue portion is in a raised position when withdrawn into the distal chamber; andwhile applying the proximal bias, applying, with an electrode assembly, an electrical current to the target tissue portion in the raised position to coagulate the target tissue portion without detaching the target tissue portion from the underlying tissue.2. The method of claim 1 , wherein applying the proximal bias comprises applying claim 1 , with a suction source claim 1 , a suction in a suction lumen of the elongate tubular member claim 1 , wherein the suction lumen is in fluid communication with the distal chamber.3. The method of claim 1 , wherein applying the electrical current to coagulate the target tissue portion creates a scarring at a base of the target tissue portion claim 1 , the method further comprising:ceasing application of the proximal bias and the electrical current after creating the scarring at the base, wherein the scarring at the base maintains the target tissue ...

POLYP REMOVAL DEVICE AND METHOD OF USE

A device and system for removing polyps is provided and includes a tubular member having proximal and distal ends, a snare portion operably extending from within the distal end of the tubular member, the snare portion including a cutting member for severing the sealed tissue. The polyp removal device may further include a handle portion operatively extending from within the proximal end of the tubular member. The handle portion may be configured for operable engagement by a user and the cutting member may extend between distal ends of the first and second electrodes. 1. (canceled)2. A method of removing a tissue mass of a body , the method comprising:moving a snare portion of a tissue removal device relative to a spacer member of the tissue removal device;capturing the tissue mass with the snare portion;selectively delivering energy to the snare portion; andsevering the tissue mass from the body with a sharpened surface of the snare portion.3. The method of claim 2 , wherein selectively delivering energy to the snare portion further includes sealing the tissue mass.4. The method of claim 3 , further comprising monitoring electrical properties of the tissue mass during energy delivery.5. The method of claim 4 , further comprising detecting a predetermined condition of the tissue mass.6. The method of claim 5 , further comprising signaling that the tissue mass is ready to be severed.7. The method of claim 2 , further comprising preventing contact between a first portion of the snare portion and a second portion of the snare portion with the spacer member.8. The method of claim 2 , further comprising retracting the snare portion relative to the tissue removal device to sever the tissue mass from the body.9. The method of claim 2 , further comprising moving a handle of the tissue removal device relative to a tubular member of the tissue removal device to retract the snare portion.10. The method of claim 9 , further comprising retracting at least a portion of the snare ...

Devices for tissue separation and related methods of use

The present disclosure is directed to a medical instrument. The medical instrument may include a shaft having a distal end configured to cauterize tissue. An expandable member may be positioned adjacent the distal end of the shaft. The expandable member may be configured for deployment between a collapsed configuration and an expanded configuration.

Microwave energy-delivery device and system

An ablation system including an image database storing a plurality of computed tomography (CT) images of a luminal network and a navigation system enabling, in combination with an endoscope and the CT images, navigation of a locatable guide and an extended working channel to a point of interest. The system further includes one or more fiducial markers, placed in proximity to the point of interest and a percutaneous microwave ablation device for applying energy to the point of interest.

CAPSULE CAMERA WITH VARIABLE ILLUMINATION OF THE SURROUNDING TISSUE

The invention relates to an ingestible capsule and method for in vivo imaging and/or treatment of one or more diseased areas of interest within the gastrointestinal tract of an animal or human being. The capsule comprises an image sensor; a lens system for focusing images onto the image sensor; at least one light source for illumination of the tissue area of interest, the at least one light source optionally being capable of providing optical therapeutic treatment to the diseased areas; a variable lens system located in front of the at least one light source, wherein the variable lens system comprises beam steering means and focusing means for directing and focusing the light beams from the at least one light source onto the diseased tissue areas; a control unit in communication with the image sensor, the at least one light source, and variable lens system, the control unit comprising image storing means, processing means and image transmission means; wherein the control unit correlates stored images received from the image sensor as the capsule travels through the gastrointestinal tract and controls the beam steering means and focusing means of the variable lens system to ensure that the light beams from the at least one light source are directed and focused onto the diseased tissue areas; a power source for powering the image sensor, the at least one light source and the control unit; and a non-digestible, transparent outer protective shell configured to pass through the gastrointestinal tract, housing within the image sensor, the lens system, the at least one light source, the variable lens system, the control unit and the power source. 1. A method for in vivo imaging of one or more tissue areas of interest within the gastrointestinal tract of an animal or human being comprising: an image sensor;', 'a lens system for focusing images of interest onto the image sensor;', 'at least one light source for providing illumination to the tissue of the gastrointestinal ...

Electrosurgical snare

The disclosure relates to three enhancements for a surgical snare: an electrosurgical snare in which the loop of snare wire extends from an energy transfer surface which can act both as a physical reaction surface for mechanical cutting using the snare and as a region for emitting electromagnetic energy; a surgical snare having a snare wire having a first end connected to a movable boss that is slidably mounted on a coaxial cable; and a surgical snare having an end cap with a distally facing reaction surface and a pair of channels for guiding a snare wire, where the distally facing reaction surface is arranged to contact the retractable loop when fully retracted.

Method and Apparatus for Tissue Ablation

Methods of ablating endometrial tissue are disclosed. The methods include providing an ablation device that has a catheter with a hollow shaft through which an ablative agent can travel, a first positioning element, and a second positioning element positioned on the catheter distal to the first positioning element. The second positioning element is a disc shaped wire mesh and has a diameter in a range of 0.1 mm to 10 cm.

Heat ablation systems, devices and methods for the treatment of tissue

A system for treatment target tissue comprises an ablation device and an energy delivery unit. The ablation device comprises an elongate tube with an expandable treatment element. The system delivers a thermal dose of energy to treat the target tissue. Methods of treating target tissue are also provided.

Methods and systems for treatment of tissue in a body lumen

A system for measuring physiologic characteristics or treating tissue in a body lumen. The system may be used for treating abnormal mucosa in the esophagus. The system comprises an energy delivery device, such as an ablation device including an electrode support and an electrode pattern on the support. The ablation device may expand in size from a pre-deployed state to a deployed state. The system may include a sizing device having an inflatable balloon on a distal end of a catheter that is inflated with an expansion medium to expand the balloon to engage the wall of the esophagus so that the internal cross-section can be calculated or measured. The sizing device may also a controller for delivering an expansion medium and measuring the amount and pressure of the expansion medium inside the catheter. Methods of treating or diagnosing tissue are also disclosed.

ELECTROPORATION ABLATION APPARATUS, SYSTEM, AND METHOD

An ablation system including a first probe extending through a first longitudinal lumen from a proximal end to beyond a distal end of a flexible shaft, a first electrode coupled to a distal end of the first probe, and a first conductor electrically coupled to the first electrode. The ablation system further includes a second probe extending through a second longitudinal lumen from the proximal end to beyond the distal end of the flexible shaft, a second electrode coupled to a distal end of the second probe, and a second conductor electrically coupled to the second electrode. The first and second probes are rotatable and translatable within the first and second longitudinal lumens respectively. Furthermore, the first electrode and the second electrode are rotatably and translatably positionable with respect to one another, via the first probe and the second probe respectively, to define a region therebetween. 1. An ablation apparatus , comprising: a first lumen extending between the proximal end and the distal end; and', 'a second lumen extending between the proximal end and the distal end;, 'an elongate shaft comprising a proximal end and a distal end, wherein the elongate shaft definesa first probe extending through the first lumen from the proximal end to beyond the distal end of the elongate shaft, wherein the first probe is rotatable and translatable within the first lumen;a first electrode attached to a distal end of the first probe, wherein a first conductor is electrically coupled to the first electrode;a second probe extending through the second lumen from the proximal end to beyond the distal end of the elongate shaft, wherein the second probe is rotatable and translatable within the second lumen;a second electrode attached to a distal end of the second probe, wherein a second conductor is electrically coupled to the second electrode; andwherein the first electrode and the second electrode are rotatably and translatably positionable with respect to one ...

Endoscopic mucosal resection single step hood

The present disclosure provides systems and methods for cutting mucosal tissue. In particular, the present disclosure provides an endoscopic hood with an integrated wire for single-step tissue cutting. The endoscopic hood is particularly useful for performing repeated cutting, for example EMR resections, without the need for assistance by a nurse or medical technician.

Systems and methods for treating tissue with radiofrequency energy

A device for applying radiofrequency energy for sphincter treatment comprising a flexible outer tube, an expandable basket having a plurality of arms movable from a collapsed position to an expanded position, and a plurality of electrodes movable with respect to the arms from a retracted position to an extended position. An advancer is slidably disposed within the outer tube to move the plurality of electrodes to the extended position. An actuator moves the advancer from a first position to a second position to advance the plurality of electrodes. An aspiration tube extends within the outer tube. An assembly includes an aspiration disabler having a first position to enable aspiration from a distal portion of the aspiration tube to a proximal portion and a second position to disable aspiration.

Retrieval device and related methods of use

A medical device and a method for manipulating a tissue are disclosed. The medical device includes two or more bars, a snare loop and a constricting element. Each bar includes a proximal end, and one or more distal ends, such that the bars are in close proximity at the proximal end. The snare loop maybe coupled to the distal ends of the bars. The constricting element maybe movably coupled to the bars, such that the constricting element expands the snare loop when positioned at the proximal end of the plurality of bars while the constricting element collapses the snare loop when positioned at the distal end of the plurality of bars, thus, keeping the distal end of the snare loop stationary with respect to the tissue.

ELECTRICAL ABLATION DEVICES

An electrical ablation apparatus comprises first and second electrodes. Each electrode comprises a first end configured to couple an energy source and a second end configured to couple to a tissue treatment region. An energy source is coupled to the first and second electrodes. The energy source is configured to deliver a first series of electrical pulses sufficient to induce cell necrosis by irreversible electroporation and a second series of electrical pulses sufficient to induce cell necrosis by thermal heating, through at least one of the first and second electrodes. The first series of electrical pulses is characterized by a first amplitude, a first pulse length, and a first frequency. The second series of electrical pulses is characterized by a second amplitude, a second pulse length, and a second frequency. 1. An electrical ablation apparatus , comprising:an elongate tubular body extending from a distal end to a proximal end;an inflatable conductive elastomer electrode;a non-conductive catheter; andan energy source coupled to the inflatable conductive elastomer electrode, the energy source configured to deliver a first series of electrical pulses sufficient to induce cell necrosis by irreversible electroporation through the inflatable conductive elastomer electrode;wherein the first series of electrical pulses are characterized by a first amplitude, a first pulse length, and a first frequency.2. The electrical ablation apparatus of claim 1 , wherein the inflatable conductive elastomer electrode comprises:a conductive terminal coupled to the inflatable conductive elastomer electrode; anda first conductive wire coupled to the conductive terminal on one end and coupled to a first terminal of the energy on another end.3. The electrical ablation apparatus of claim 2 , comprising:a return electrode; anda second electrically conductive wire coupled to the return electrode on one end and coupled to a second terminal of the energy source on another end.4. The ...

Multi-function high-frequency tool for endoscope

A multi-function high-frequency tool for an endoscope, comprising an insert portion and a handle portion, the insert portion comprising an insulating tip, a first electrode having a needle-knife function, a second electrode having an IT-knife function, and a spray head; the handle portion comprising a first slider, a connector, an injection connector, and a second slider. The second electrode has a hollow structure, and the first electrode extends through the second electrode; the proximal end of the first electrode is fixedly connected by means of a mandrel connecting member to the distal end of a mandrel; the proximal end of the mandrel is connected to the first slider of the handle portion, and moves axially on the handle portion by means of the first slider, thereby causing the first electrode to expose from/retract into the second electrode.

Chemical ablation formulations and methods of treatments for various diseases

Embodiments of the present invention are directed to the treatment of hypertension, diabetes, obesity, heart failure, end-stage renal disease, digestive disease, urological disease, cancers, tumors, pains, asthma, pulmonary arterial hypertension, and chronic obstructive pulmonary disease by delivering of an effective amount of formulations at desired temperature to target tissue. The formulations include gases, vapors, liquids, solutions, emulsions and suspensions of one or more ingredients. The temperature may enhance safety and efficacy of the formulations for the treatments. The amounts of the formulation and/or energy are effective to injury or damage the tissues to have a benefit of symptom relive.

Electrical ablation devices

An electrical ablation apparatus comprises first and second electrodes. Each electrode comprises a first end configured to couple an energy source and a second end configured to couple to a tissue treatment region. An energy source is coupled to the first and second electrodes. The energy source is configured to deliver a first series of electrical pulses sufficient to induce cell necrosis by irreversible electroporation and a second series of electrical pulses sufficient to induce cell necrosis by thermal heating, through at least one of the first and second electrodes. The first series of electrical pulses is characterized by a first amplitude, a first pulse length, and a first frequency. The second series of electrical pulses is characterized by a second amplitude, a second pulse length, and a second frequency.

Electroporation ablation apparatus, system, and method

A surgical instrument, such as an endoscopic or laparoscopic instrument, includes an ablation device. The ablation device includes an elongate member having first and second channels. First and second probes are disposed within the respective first and second channels. The first and second probes each define a central axis. The first and second probes each have substantially straight distal ends protruding from the distal ends of the respective first and second channels. The substantially straight distal ends define an outer surface. First and second electrodes are attached to a portion of the outer surface of the substantially straight distal ends of the respective first and second probes. The first and second electrodes are positioned in juxtaposed relationship with the central axis of the first and second probes. A distance between the first and second electrodes is adjustable by rotating at least one of the first and second probes about the respective central axis of the at least one of the first and second probes.

Electroporation ablation apparatus, system, and method

An ablation system including a first probe extending through a first longitudinal lumen from a proximal end to beyond a distal end of a flexible shaft, a first electrode coupled to a distal end of the first probe, and a first conductor electrically coupled to the first electrode. The ablation system further includes a second probe extending through a second longitudinal lumen from the proximal end to beyond the distal end of the flexible shaft, a second electrode coupled to a distal end of the second probe, and a second conductor electrically coupled to the second electrode. The first and second probes are rotatable and translatable within the first and second longitudinal lumens respectively. Furthermore, the first electrode and the second electrode are rotatably and translatably positionable with respect to one another, via the first probe and the second probe respectively, to define a region therebetween.

Electroporation ablation apparatus, system, and method

A surgical instrument, such as an endoscopic or laparoscopic instrument, includes an ablation device. The ablation device includes an elongate relatively flexible member having a proximal end and a distal end, the flexible member includes at least a first working channel. A first and second electrode extends from a working channel at the distal end of the flexible member. The first and second electrodes are adapted to be endoscopically located in a tissue treatment region. The first and second electrodes are adapted to couple to an electrical waveform generator to receive an irreversible electroporation electrical waveform sufficient to ablate tissue located between the first and second electrodes. The waveform parameters of the irreversible electroporation electrical waveform are determined based on image information received from the tissue treatment region.

Electroporation ablation apparatus, system, and method

A surgical instrument, such as an endoscopic or laparoscopic instrument, includes an ablation device. The ablation device includes an elongate relatively flexible member having a proximal end and a distal end, the flexible member includes at least a first working channel. A first and second electrode extends from a working channel at the distal end of the flexible member. The first and second electrodes are adapted to be endoscopically located in a tissue treatment region. The first and second electrodes are adapted to couple to an electrical waveform generator to receive an irreversible electroporation electrical waveform sufficient to ablate tissue located between the first and second electrodes. The waveform parameters of the irreversible electroporation electrical waveform are determined based on image information received from the tissue treatment region.

Electrical ablation devices

An electrical ablation apparatus comprises first and second electrodes. Each electrode comprises a first end configured to couple an energy source and a second end configured to couple to a tissue treatment region. An energy source is coupled to the first and second electrodes. The energy source is configured to deliver a first series of electrical pulses sufficient to induce cell necrosis by irreversible electroporation and a second series of electrical pulses sufficient to induce cell necrosis by thermal heating, through at least one of the first and second electrodes. The first series of electrical pulses is characterized by a first amplitude, a first pulse length, and a first frequency. The second series of electrical pulses is characterized by a second amplitude, a second pulse length, and a second frequency.

Electrical ablation devices

An electrical ablation apparatus comprises first and second electrodes. Each electrode comprises a first end configured to couple an energy source and a second end configured to couple to a tissue treatment region. An energy source is coupled to the first and second electrodes. The energy source is configured to deliver a first series of electrical pulses sufficient to induce cell necrosis by irreversible electroporation and a second series of electrical pulses sufficient to induce cell necrosis by thermal heating, through at least one of the first and second electrodes. The first series of electrical pulses is characterized by a first amplitude, a first pulse length, and a first frequency. The second series of electrical pulses is characterized by a second amplitude, a second pulse length, and a second frequency.

Tissue treatment systems, devices, and methods

Provided herein are systems for treating tissue of a patient. The system comprises an energy delivery console and at least one energy delivery device. The energy delivery console can provide a first dose of energy and a second dose of energy. An energy delivery device comprises a first delivery element configured to deliver the first dose of energy to target tissue, and a second delivery element configured to deliver the second dose of energy to the target tissue. The first dose of energy can comprise a delivery of energy that reversibly alters the target tissue, and the second dose of energy can comprise a delivery of energy that irreversibly alters the target tissue. The first dose of energy can be delivered to enhance a therapy provided by the second dose of energy.

Capsule and method for treating or diagnosing the intestinal tract

A device and method for mapping, diagnosing and treating the intestinal tract is provided using a capsule passing through the intestinal tract. Further, a capsule tracking system is provided for tracking a capsule's location along the length of an intestinal tract as various treatment and/or sensing modalities are employed. In one variation, an acoustic signal is used to determine the location of the capsule. A map of sensed information may be derived from the pass of a capsule. Capsules may be subsequently passed through to treat the intestinal tract at a determined location along its length. One variation uses an electrical stimulation capsule to treat and/or diagnose a condition in the intestinal tract.

Endoscopic treatment tool

Medical self-expansion type stent

본 발명은 의료용 자가 팽창형 스텐트에 관한 것으로서, 열에 의해 자가 팽창하며 발열하는 스텐트 본체; 상기 스텐트 본체에 길게 펼쳐지게 적층되고, 전기에너지를 광에너지로 변환하여 발열하는 스트레처블 엘이디; 및 상기 스트레처블 엘이디를 상기 스텐트 본체에 고정하도록 피막을 형성하며, 열에 의해 자가 팽창하는 피막 형성부를 포함하는 것을 특징으로 한다. The present invention relates to a self-expandable stent for medical use, comprising: a stent body that self-expands and generates heat by heat; a stretchable LED that is stacked on the stent body to be stretched and heats up by converting electrical energy into light energy; and a film forming part that forms a film to fix the stretchable LED to the stent body, and self-expands by heat.

Endoscopic treatment instrument

본 발명에 따르면, 내시경의 삽입 섹션의 팁부 위로 끼워지도록 된 실린더와; 삽입 섹션에 대해 연장 가능 및 후퇴 가능하고, 실린더 내에 연장 가능한 스네어 외피로부터 실린더 내에 돌출되는 루프-형상의 스네어 와이어와; 실린더의 팁부의 원주부로부터 반경 방향으로 내향으로 연장되어 형성되고, 실린더 내에 스네어 와이어를 보유하는 후크형 부분과; 후크형 부분 상에 제공되고, 스네어 외피에 대해 실린더 팁부를 향해 전방으로 이동되는 스네어 와이어의 절첩 부분을 보유하고, 스네어 와이어가 절첩 부분 주위에서 역전되게 하는 로킹 부분을 포함하는 내시경 치료 기구가 제공된다. 내시경 치료 기구, 실린더, 루프-형상의 스네어, 후크형 부분, 로킹 부분 According to the present invention, there is provided a cylinder comprising: a cylinder adapted to fit over a tip of an insertion section of an endoscope; A loop-shaped snare wire protruding into the cylinder from the snare sheath extendable and retractable with respect to the insertion section and extendable within the cylinder; A hook-shaped portion extending radially inwardly from a circumferential portion of the tip portion of the cylinder and holding the snare wire in the cylinder; An endoscopy treatment apparatus is provided that includes a locking portion provided on the hooked portion and holding a folded portion of the snare wire that is moved forward toward the cylinder tip portion with respect to the snare sheath, and causing the snare wire to be reversed around the folded portion. . Endoscopic Therapy Apparatus, Cylinder, Loop-Shaped Snare, Hook-In Part, Locking Part

Electrical ablation device

Surgical instruments for treating gastro-esophageal reflux

Instruments for thermally-mediated treatment of a patient's lower esophageal sphincter (LES) to induce an injury healing response to thereby populate the extracellular compartment of walls of the LES with collagen matrices to altere the biomechanics of the LES to provide an increased intra-esophageal pressure for preventing acid reflux. A preferred embodiment is a bougie-type device for trans-esophageal introduction that carries conductive electrodes for delivering Rf energy to walls of the LES (i) to induce the injury healing response or (ii) to “model” collagenous tissues of the LES by shrinking collagen fibers therein. Typically, an Rf source is connected to at least one conductive electrode that may be operated in a mono-polar or bi-polar fashion. A sensor array of individual sensors is provided in the working end. A computer controller is provided, which together with feedback circuitry, is capable of full process monitoring and control of: (i) power delivery; (ii) parameters of a selected therapeutic cycle, (iii) mono-polar or bi-polar energy delivery, and (iv) multiplexing of current flow between various paired electrodes. The controller can determine when the treatment is completed based on time, temperature, tissue impedance or any combination thereof.

Electroporation ablation apparatus, system, and method

A surgical instrument, such as an endoscopic or laparoscopic instrument, includes an ablation device. The ablation device includes an elongate flexible member having a proximal end and a distal end. A first working channel is formed within the flexible member. A first diagnostic probe having a proximal end and distal end is located within the first working channel and extends through the distal end of the flexible member. A first electrode is connected to the distal end of the first diagnostic probe electrode is adapted to be endoscopically located in a tissue treatment region. The first electrode is adapted to couple to an electrical waveform generator to receive an irreversible electroporation electrical waveform sufficient to ablate tissue located proximate to the first electrode. A system further includes an electrical waveform generator electrically coupled to the first electrode of the ablation device to generate an IRE waveform sufficient to ablate tissue located proximate to the first electrode.

Medical perforation cauterization device

本发明提供一种医疗用穿孔烧灼装置，其包括：手柄，具备主体以及结合于主体的前方的装拆式盖体；连接端头，结合于主体并与电源供应构件电连接；导电体，设置于主体的前方内部，并且一端电连接于连接端头；以及导线，设置于手柄的前方，并且一端电连接于导电体。

Medical laser devices and systems

의료용 레이저 장치는 에너지 가이드와, 에너지 가이드를 통해 표적 조직을 치료하기 위한 에너지를 생성하도록 구성된 제 1 에너지 소스와, 에너지 가이드를 통해 표적 조직에 제 1 및 제 2 조준 빔을 방출하도록 구성된 제 2 에너지 소스 - 제 2 조준 빔은 제 1 조준 빔과 다른 적어도 하나의 특성을 가짐 -, 및 하드웨어를 포함하는 제어기를 포함하되, 제어기는 표적 조직을 비추기 위해 내시경에 의해 사용되는 적어도 2개의 조명 모드 중에서 조명 모드를 표시하는 신호를 수신하고, 표시된 조명 모드에 기초하여 제 2 에너지 소스를 제어하여 제 1 또는 제 2 조준 빔을 출력하도록 구성된다.

Endoscopic treatment instrument

本发明提供了一种内窥镜治疗仪器，该内窥镜治疗仪器包括：筒体，该筒体适于装配在内窥镜的插入部分的顶端上；套圈状圈套线，该圈套线从圈套器外壳伸入所述筒体中，所述圈套器外壳可相对于所述插入部分延伸和缩回并可在所述筒体中延伸；钩部，该钩部形成为从所述筒体的顶端的周边径向向内延伸并将所述圈套线保持在所述筒体中；锁定部，该锁定部设置在所述钩部上并保持所述圈套线的回折部，所述回折部相对于所述圈套器外壳朝向所述筒体的顶端向前运动，并且所述圈套线借此围绕所述回折部翻转。

Electrosurgical device

Heat ablation systems,devices and methods for the treatment of tissue

본 발명은 절제 장치와 에너지 운반 유닛을 포함하는 표적 조직을 치료하기 위한 시스템에 관한 것이다. 절제 장치는 확장 가능한 치료 요소를 갖춘 세장형 튜브를 포함한다. 시스템은 표적 조직을 치료하기 위해 에너지의 열 도스를 운반한다. 표적 조직을 치료하기 위한 방법이 또한 제공된다. The present invention relates to a system for treating a target tissue comprising an ablation device and an energy delivery unit. The ablation device comprises an elongate tube with an expandable treatment element. The system delivers a thermal dose of energy to treat the target tissue. Methods for treating target tissue are also provided.

Methods, systems and devices for performing multiple treatments on a patient

Endoscopic treatment system

This invention provides an endoscopic treatment system for executing at least one of localized injection through mucous membrane, peeling off and cutting off of mucous membrane. This system has an endoscope, which has an insertion section provided with at least one channel extending therein. The system also has a plurality of treatment tools including a syringe needle for executing localized injection through a portion of mucous membrane, forceps for gripping a portion of mucous membrane, and at least one knife for executing at least one of peeling off and cutting off of mucous membrane. Further, this system includes an endoscopic guide tube to be inserted into the esophagus, which has a main channel for inserting therein the endoscope, and at least one sub channel for inserting therein each of the treatment tools.

System and method for treating abnormal tissue in an organ having a layered tissue structure

A method, and system, are provided treating a tissue site of a tissue structure that has at least a first and a second tissue plane. An energy delivery device is provided. A barrier is created between the first and second tissue planes. At least a portion of an energy delivery device is positioned at the tissue site. Sufficient energy is delivered from the energy delivery device to create cell necrosis of at least a portion of the first tissue plane.

Precision ablating method

Methods of ablating tissue in an alimentary tract are provided. The methods include advancing an ablation structure into an alimentary tract while supporting the ablation structure with an endoscope. The methods further include a step of moving at least part of the ablation structure with respect to the endoscope and toward a tissue surface, before activating the ablation structure to ablate a tissue surface.

Apparatus and method for performing an endoscopic mucosal resection

A surgical device including an elongated shaft having a distal end and a proximal end, an arm pivotally connected to the distal end and moveable through a dissection plane, and a cutting element disposed on the arm and adapted to move from an un-deployed configuration to a deployed configuration, wherein the cutting element is generally aligned with the dissection plane when in the un-deployed configuration and at least partially transverse with respect to the dissection plane when in the deployed configuration.

Tissue sealing forceps

A forceps includes an end effector assembly having first and second jaw members. One (or both) of the jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. One (or both) of the jaw members includes an opposed jaw surface having an electrically-conductive tissue sealing plate disposed thereon. The electrically-conductive tissue sealing plate includes a first portion configured to conduct energy through tissue grasped between the jaw members to create a main tissue seal and a second portion including a plurality of spaced-apart fingers extending from the first portion. The second portion is configured to conduct energy through tissue grasped between the jaw members to create an auxiliary tissue seal extending from the main tissue seal for reducing stress concentrations adjacent the main tissue seal.

Ablation tool and system

FIELD: medical equipment.SUBSTANCE: group of inventions relates to medical equipment. The instrument for ablation of tissue, especially the mucous membrane, has a first gas supply line with a first electrode at least partially located therein, and a second gas supply line with a second electrode at least partially located therein. The first gas supply line and the second gas supply line are located relative to each other in such a way that the distal end of the first gas supply line and the distal end of the second gas supply line form an acute angle so that the gas supply lines diverge from their distal ends in the distal direction. There is a free space between the distal end of the first gas supply line and the distal end of the second gas supply line that provides the ability to monitor the area of the tool impact in front of the distal ends of the gas supply lines between the ends of the gas supply lines. The connecting element, the ablation system and the method of tissue ablation have been disclosed.EFFECT: invention is aimed at ensuring continuous and reliable treatment, as well as eliminating unwanted heat load on the tissue during the entire treatment process.18 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 748 860 C2 (51) МПК A61M 35/00 (2006.01) A61B 18/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК A61B 1/00087 (2021.02); A61B 1/2736 (2021.02); A61B 1/042 (2021.02) (21)(22) Заявка: 2018105365, 13.02.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): ЭРБЕ ЭЛЕКТРОМЕДИЦИН ГМБХ (DE) 01.06.2021 10.03.2017 EP 17160265.9 (43) Дата публикации заявки: 19.08.2019 Бюл. № 23 (56) Список документов, цитированных в отчете о поиске: US 8641711 B2, 04.02.2014. US 2011184408 A1, 20.07.2011. WO 2008/090004 A1, 31.07.2008. WO 2011/022069 A2, 24.02.2011. RU 2531974 С1, 09.06.2018. (45) Опубликовано: 01.06.2021 Бюл. № 16 2 7 4 8 8 6 0 R U (54) ИНСТРУМЕНТ И ...

Method of treating abnormal tissue in the human esophagus

An ablation catheter system and method of use is provided to endoscopically access portions of the human esophagus experiencing undesired growth of columnar epithelium. The ablation catheter system and method includes controlled depth of ablation features and use of either radio frequency spectrum, non-ionizing ultraviolet radiation, warm fluid or microwave radiation, which may also be accompanied by improved sensitizer agents.

Methods and systems for determining physiologic characteristics for treatment of the esophagus

A method and apparatus for treating abnormal mucosa in the esophagus is disclosed, such that the depth of the treated tissue is controlled. The depth of ablation is controlled by monitoring the tissue impedance and/or the tissue temperature. A desired ablation depth is also achieved by controlling the energy density or power density, and the amount of time required for energy delivery. A method and apparatus is disclosed for measuring an inner diameter of a body lumen, where a balloon is inflated inside the body lumen at a fixed pressure.

Multi-stage vapor-based ablation treatment methods and vapor generation and delivery systems

Ablation catheters and systems include flexible catheter tips with a distal needle or ports for delivery of an ablative agent to a target tissue. Pressure monitoring during ablation ensure operation is performed within safe limits and with desired efficacy. Positioning elements help maintain the devices in the proper position with respect to the target tissue and also prevent the passage of ablative agent to normal tissues.

Methods and systems for determining physiologic characteristics for treatment of the esophagus

A system for measuring physiologic characteristics for treating abnormal mucosa in the esophagus comprises a sizing device having an inflatable balloon on a distal end of a catheter that is inflated with an expansion medium to expand the balloon to engage the wall of the esophagus so that the internal cross-section can be calculated or measured. The sizing device may also include an infusion source for delivering the expansion medium and means for measuring the amount and pressure of the expansion medium inside the catheter. The system also comprises one or more energy delivery devices for injuring or ablating the mucosal layer of the esophageal wall, the energy delivery devices having an expandable member selected to engage the esophageal wall to the appropriate dimension as determined by the sizing device.

Auto-aligning ablating device and method of use

An ablation device and methods for use thereof including a support structure adapted to support an ablation structure within an alimentary tract of a patient are provided. The support structure includes a longitudinal support with a longitudinal axis and a rotational support. The rotational support is adapted to permit at least part of the ablation structure to rotate with respect to the longitudinal support's longitudinal axis.

Method and Apparatus for Ablation of Benign, Pre-Cancerous and Early Cancerous Lesions That Originate Within the Epithelium and are Limited to the Mucosal Layer of the Gastrointestinal Tract

Devices and methods are provided for ablating areas of the gastrointestinal tract affected with certain benign, pre-cancerous, or early cancerous lesions that originate within the epithelium and are limited to the mucosal layer of the gastrointestinal tract wall. Examples of such lesions include benign conditions such as cervical inlet patch (ectopic gastric mucosa in the upper esophagus), as well as pre-cancerous and cancerous conditions such as intestinal metaplasia/intra-epithelial neoplasia/early cancer of the stomach, squamous intra-epithelial neoplasia and early cancer of the esophagus, oral and pharyngeal leukoplakia, flat colonic polyps, anal intra-epithelial neoplasia (AIN), and early cancers of the anal canal. Ablation, as provided the invention, commences at the epithelial layer of the gastrointestinal wall and penetrates deeper into the gastrointestinal wall in a controlled manner to achieve a successful patient outcome, the latter of which is defined generally as eradication of the targeted lesion, and/or a change in the targeted lesion to prevent or forestall patient morbidity. Embodiments of the device include an ablational electrode array that spans 360 degrees and an array that spans an arc of less than 360 degrees.

Ablation in the gastrointestinal tract to achieve hemostasis and eradicate lesions with a propensity for bleeding

Devices and methods are provided for the ablation of regions of the digestive tract to achieve hemostasis and to eradicate chronically bleeding lesions as occur with gastric antral vascular ectasia (GAVE), portal hypertensive gastropathy (PHG), radiation proctopathy and colopathy, arteriovenous malformations, and angiodysplasia. Ablation is typically provided in a wide-field manner, and in conjunction with sufficient pressure to achieve coaptive coagulation. Ablation, as provided the invention, starts at the mucosa and penetrates deeper into the gastrointestinal wall in a controlled manner. Ablation control may be exerted by way of electrode design and size, energy density, power density, number of applications, pattern of applications, and pressure. Control may also be provided by a fractional ablation that ablates some tissue within a target region and leaves a portion substantially unaffected. Embodiments of the device include an ablational electrode array that spans 360 degrees and an array that spans an arc of less than 360 degrees.

Method and apparatus for gastrointestinal tract ablation to achieve loss of persistent and/or recurrent excess body weight following a weight-loss operation

Devices and methods are provided for ablational treatment of regions of the digestive tract in post-bariatric surgery patients who fail to achieve or maintain the desired weight loss. Bariatric procedures include Roux-en-Y gastric bypass, biliopancreatic diversion, and sleeve gastrectomy. These procedures reconstruct gastrointestinal tract features, creating pouches, stoma, and tubes that restrict and/or divert the digestive flow. Post-surgical dilation of altered structures is common and diminishes their bariatric effectiveness. Ablation of compromised structures can reduce their size and compliance, restoring bariatric effectiveness. Ablation, as provided the invention, starts at the mucosa and penetrates deeper into the gastrointestinal wall in a controlled manner. Control may also be provided by a fractional ablation that ablates some tissue within a target region and leaves a portion substantially unaffected. Embodiments of the device include an ablational electrode array that spans 360 degrees and an array that spans an arc of less than 360 degrees.

Cleaning device and methods

A method for providing therapy to tissue at a treatment site is performed by ablating tissue at the treatment site with an ablation device. Next, a cleaning device is attached to an instrument. The cleaning device attached to the instrument is used to remove ablated tissue at the treatment site. The cleaning device may also be used to remove debris from the treatment site prior to ablation or other therapeutic or diagnostic procedure.

Method of treating abnormal tissue in the human esophagus

An ablation catheter system and method of use is provided to endoscopically access portions of the human esophagus experiencing undesired growth of columnar epithelium. The ablation catheter system and method includes controlled depth of ablation features and use of either radio frequency spectrum, non-ionizing ultraviolet radiation, warm fluid or microwave radiation, which may also be accompanied by improved sensitizer agents.

Methods and systems for determining physiologic characteristics for treatment of the esophagus

A method and apparatus for treating abnormal mucosa in the esophagus is disclosed, such that the depth of the treated tissue is controlled. The depth of ablation is controlled by monitoring the tissue impedance and/or the tissue temperature. A desired ablation depth is also achieved by controlling the energy density or power density, and the amount of time required for energy delivery. A method and apparatus is disclosed for measuring an inner diameter of a body lumen, where a balloon is inflated inside the body lumen at a fixed pressure.

Methods and systems for determining physiologic characteristics for treatment of the esophagus

A method and apparatus for treating abnormal mucosa in the esophagus is disclosed, such that the depth of the treated tissue is controlled. The depth of ablation is controlled by monitoring the tissue impedance and/or the tissue temperature. A desired ablation depth is also achieved by controlling the energy density or power density, and the amount of time required for energy delivery. A method and apparatus is disclosed for measuring an inner diameter of a body lumen, where a balloon is inflated inside the body lumen at a fixed pressure.

Methods and apparatuses for treating an esophageal disorder such as gastroesophageal reflux disease

Methods and apparatuses for treating esophageal disorders such as gastroesophageal reflux disease are disclosed herein. One embodiment of a method includes applying energy to a portion of the sling and/or clasp fibers at the stomach, gastroesophageal junction, and/or esophagus of the patient in a manner that shortens or otherwise alters the fibers. The altered sling and/or clasp fibers are expected to recalibrate and restore the cardia and improve the competence of the lower esophageal sphincter. The energy applied to the fibers can be ultrasonic, radio-frequency, microwave, light, and/or other suitable types of energy.

Method and apparatus for gastrointestinal tract ablation to achieve loss of persistent and/or recurrent excess body weight following a weight loss operation

Devices and methods are provided for ablational treatment of regions of the digestive tract in post-bariatric surgery patients who fail to achieve or maintain the desired weight loss. Bariatric procedures include Roux-en-Y gastric bypass, biliopancreatic diversion, and sleeve gastrectomy. These procedures reconstruct gastrointestinal tract features, creating pouches, stoma, and tubes that restrict and/or divert the digestive flow. Post-surgical dilation of altered structures is common and diminishes their bariatric effectiveness. Ablation of compromised structures can reduce their size and compliance, restoring bariatric effectiveness. Ablation, as provided the invention, starts at the mucosa and penetrates deeper into the gastrointestinal wall in a controlled manner. Control may also be provided by a fractional ablation that ablates some tissue within a target region and leaves a portion substantially unaffected. Embodiments of the device include an ablational electrode array that spans 360 degrees and an array that spans an arc of less than 360 degrees.

Large area thermal ablation

A large area thermal ablation apparatus for use with an endoscope includes a housing and at least one electrode. The housing is removably attachable to a distal terminating end of the endoscope. The housing includes an outer surface and a cross-sectional area that is at least as large as a cross-sectional area of the distal terminating end of the endoscope. The electrode is supported by the outer surface of the housing. The electrode is capable of delivering energy to a tissue region inside a body to ablate the tissue region.

Hybrid knife for endoscope

본 발명은 서로 다른 종류의 나이프를 포함하여 교체 없이도 수직 및 수평 방향으로 점막하의 조직을 용이하게 절개 및 박리 가능한 내시경용 하이브리드 나이프에 관한 것으로, 본 발명은, 중공을 갖으며, 일측에는 상기 중공에 연결된 개구부가 형성된 핸들부와, 상기 핸들부의 외주면에 길이 방향을 따라 전, 후방 슬라이드가 가능하도록 결합된 제1 및 제2 핸들 슬라이더와, 상기 핸들부의 중공에 배치되며 상기 제1 핸들 슬라이더와 일체로 이동 가능하도록 연결된 파이프와, 상기 파이프를 관통하도록 배치되며 상기 제2 핸들 슬라이더와 일체로 이동 가능하도록 연결된 제2 나이프와, 상기 핸들부의 일단에 결합되며, 내부로 유체를 주입하기 위한 유체 주입부와, 상기 유체 주입부의 일단에 연결되며 내부에는 상기 파이프가 배치되는 이너 튜브와, 상기 파이프의 끝단에 결합되는 제1 나이프 및 상기 제1 나이프의 끝단에 결합되는 절연성 팁(tip)을 포함하며, 상기 제1 나이프와 제2 나이프는 서로 독립적으로 슬라이드 이동 가능한 것을 특징으로 하는 내시경용 하이브리드 나이프를 제공한다. The present invention relates to an endoscope hybrid knife that can be easily cut and peeled submucosal tissue in the vertical and horizontal direction without replacement, including different types of knives, the present invention has a hollow, one side in the hollow A handle portion having a connected opening portion, first and second handle sliders coupled to the outer circumferential surface of the handle portion so as to slide forward and rearward in a longitudinal direction, and disposed in the hollow of the handle portion and integrally with the first handle slider; A pipe connected to be movable, a second knife disposed to penetrate the pipe and connected to the second handle slider integrally, and connected to one end of the handle part, and a fluid injection part for injecting fluid therein; An inner tube connected to one end of the fluid injection part and having the pipe disposed therein; And an insulating tip coupled to the end of the first knife, wherein the first knife and the second knife are slidably movable independently of each other. Provide a hybrid knife.

Ultrasound stimulation apparatus for controlling temperature of human body internal organs and method for using the apparatus

인체 내부 기관의 온도 조절을 위한 초음파 자극 장치 및 방법이 개시된다. 초음파 자극 장치는 타겟 기관의 조사에 적합한 초음파의 주파수 및 초음파에 의해 형성될 초점의 깊이를 포함하는 초음파 조사 정보에 상응하여 전기 신호를 발생시키는 본체부 및 본체부에서 발생시킨 전기 신호를 초음파 신호로 변환하고, 초음파 신호를 타겟 기관에 조사하여 타겟 기관의 온도 상승을 유도함으로써 타겟 기관에 상존하는 정상균군의 균형을 조절하거나 정상균군의 활동 및 성장을 활성화시키는 초음파 출력부를 포함한다. 따라서, 인체의 기능을 향상시키거나 인체 내부 기관에 발생한 질병을 치료할 수 있다.

Medical Snare Equipment

본 발명은 인체의 장기에 발생한 용종을 정확하고 신속하게 절취 제거할 수 있음은 물론, 상기 용종이 절취 제거된 부분의 출혈을 최소화할 수 있도록 한 의료용 스네어장치에 관한 것으로, 그 구성은, 상/하부가이드 홀이 형성된 본체와, 용종제거라인과 약액라인을 가이드 하는 회전체과, 용종제거라인과 약액라인을 수용 보호하는 체내진입부와, 용종제거라인을 전/후진시키는 용종제거라인작동수단과, 약액라인을 전/후진시키는 약액라인작동수단으로 이루어진다. The present invention relates to a medical snare device capable of accurately and quickly cutting and removing polyps generated in organs of the human body, as well as minimizing bleeding in the area where the polyps are cut and removed. A main body having a lower guide hole, a rotating body for guiding the polyp removal line and the drug solution line, a body entrance unit for accommodating and protecting the polyp removal line and the drug solution line, and a polyp removal line operating means for forward/backward movement of the polyp removal line, It consists of a chemical liquid line operating means for moving the chemical liquid line forward/backward.

Treatment tool for endoscope

본 발명은 내시경적 점막하층 박리술에 있어서 점막하층을 절단하는데에 적합한 내시경용 처치구를 제공하는 것이며, 내시경용 처치구는 체내에 삽입되는 삽입부의 선단에 처치부를 구비한다. 처치부는 고주파 전원에 접속된 도체부를 구비하고, 도체부를 선단측의 부도체부와 기단측의 부도체부에 의해 끼운 샌드위치 구조로 구성된다. 도체부는 처치부의 측면에 띠상으로 노출 형성되어 있고, 처치부를 측방으로 이동시킴으로써 도체부에 의한 점막하층의 절단이 행해진다. 내시경용 처치구 The present invention provides an endoscopic treatment tool suitable for cutting a submucosal layer in endoscopic submucosal layer dissection, and the endoscopic treatment tool has a treatment part at the tip of the insertion part inserted into the body. The treatment section has a conductor section connected to the high frequency power source and has a sandwich structure in which the conductor section is sandwiched between the non-conductor section on the tip side and the non-conductor section on the base side. The conductor portion is formed in a strip shape on the side surface of the treatment portion, and the treatment portion is moved laterally to cut the submucosal layer by the conductor portion. Endoscopic treatment instrument

Electrosurgical forceps for delivering microwave energy from a non-resonant unbalanced lossy transmission line structure

본 발명은 겸자의 죠 내에 위치되거나 이 죠에 의해 형성된 비-공진 불균형 손실 전송 라인 구조물로부터 마이크로파 에너지를 생물학적 조직으로 전달하는 전기 수술 겸자에 관한 것이다. 동축 케이블의 내부 전도체와 외부 전도체에 각각 전기적으로 연결된 대향하는 전도성 부재들에 의해 상기 죠 부재들 사이의 갭에 걸쳐 상기 전송 라인 구조물이 형성될 수 있다. 대안적으로, 각 죠 부재는 자체 손실 전송 라인을 포함할 수 있고, 이에 의해 전력 스플리터는 동축 케이블로부터 마이크로파 에너지를 분할하는데 사용된다. 상기 겸자는 위장관 또는 복강경 수술 또는 개복 수술에 내시경으로 사용될 수 있다. The present invention relates to electrosurgical forceps for transferring microwave energy from a non-resonant unbalanced lossy transmission line structure positioned within or formed by the jaws of the forceps to biological tissue. The transmission line structure may be formed across the gap between the jaw members by opposing conductive members electrically connected respectively to the inner and outer conductors of the coaxial cable. Alternatively, each jaw member may include its own lossy transmission line, whereby the power splitter is used to split the microwave energy from the coaxial cable. The forceps can be used as an endoscope for gastrointestinal or laparoscopic surgery or open surgery.

Methods and apparatus for testing disruption of a vagal nerve

Method and apparatus for disrupting a gastric vagal nerve in the gastroesophageal region and testing the function and disruption of the vagal nerve. In one example embodiment, a treatment device applies ultrasound at a high energy level, such as high intensity focused ultrasound, to a vagal nerve to disrupt it and then ultrasound at a lower energy level to another portion of the vagal nerve, preferably further from the stomach, so as to stimulate the vagal nerve. Alternative ways to test the function or disruption of the vagal nerve involve using PCP-GABA, a pancreatic polypeptide, pressure changes inside the stomach, the gastric mucusol pH, a dye agent in the stomach, and other tests.

Surgical instrument with imaging device

A loading unit configured for engagement with a surgical instrument, and including a proximal body portion, an end effector, and an imaging device. The end effector is disposed in mechanical cooperation with the proximal body portion, and includes a first jaw member and a second jaw member. At least one of the first jaw member and the second jaw member is movable with respect to the other of the first jaw member and the second jaw member between an open position and an approximated position. The first jaw member includes a first tissue contacting surface, and the second jaw member includes a second tissue contacting surface. A distal portion of the first jaw member is disposed at a first angle with respect to the first tissue contacting surface. The imaging device is disposed on the distal portion of the first jaw member, and is configured to capture visual data.

Systems and methods for treating dysfunctions in the intestines and rectum

A sphincter tissue region is treated using a support structure sized for advancement into the anal canal. At least one electrode is carried by the structure. A mechanism is coupled to the electrode to move the electrode between a first position retracted in the support structure and a second position extended from the support structure through surface tissue to penetrate a subsurface tissue region at or near a sphincter in the anal canal. A cable is coupled to the electrode to conduct energy for application by the electrode to form a lesion in the subsurface tissue region.

Medical device with improved wall construction

A medical device having a laminate elongate hollow member is disclosed. The laminate member provides torsional stiffness for controlling positioning of the distal end of the device, and provides bending flexibility for assisting in insertion of the device in the patient's esophagus or other body lumen.

Polypectomy device and method

A polypectomy device and method which includes a snare cable, a fixed jaw and a moveable jaw. The snare cable is routed through both the fixed jaw and the moveable jaw. The snare cable forms a hoop for encircling the polyp. Shortening the snare cable positions the jaws about the base of the polyp and further shortening the cable closes the jaws. The fixed jaw includes a heating element which cauterizes the base of the polyp. The closing of the jaws and the heating of the heating element cuts and seals the polyp.

Endoscope-use mucous membrane lifts utensil and endoscopic surgical system

本内窥镜用粘膜提起器具包括：提起部，其自内窥镜的远位端部突出，为了提起组织而具有顶起面，该顶起面具有预定的宽度；第一支承部，其在自所述内窥镜的远位端部突出的位置设置为从所述提起部的外侧面向外侧隔开间隙而间隔开；以及第二支承部，其在自所述内窥镜的远位端部突出的位置且在相对于所述提起部位于与所述第一支承部相对的位置设置为从所述提起部的外侧面向外侧隔开间隙而间隔开，所述第一支承部和所述第二支承部为了按下被所述提起部的顶起面顶起的组织的周边组织而具有按下面，该按下面具有预定的宽度。

Single-pole plasma coagulation radial antenna tip design