Abstract: A medical instrument in particular a uretero-renoscope has a proximal head part and an elongate thin shaft for introduction into a small diameter elongate hollow organ. An instrument channel and at least one further channel is disposed within the shaft. The instrument channel is arranged centrally in the shaft.

Abstract: A miniature ingestible capsule has multiple therapeutic or diagnostic operations that can be performed. These functions are controlled by a combination of an outside control, a pose beacon and through information relayed from an imagining array and transmitter. These functions can be in a separate capsule without an imaging array or within the same capsule with an imaging array. Typically, there is one function performed in addition to imaging. These functions can include suction and spray capabilities, ultrasound sensor, lithotripsy, laser, heat, electrocautery, BICAP, biopsy forceps, a needle knife snare cautery (cold and hot with continuous or pulsed current for cutting and coagulation), with a basket, and fine needle aspiration with various wheels and fins and motors controlled externally and other tools to be used in humans. All of these tools can be attached to a retractable arm. Also, they can be used on an elevator device that lifts them, allowing for an extra 180° of movement.

Abstract: A urological resectoscope (1) includes a tubular, metallic external stem (2) fitted with holes (3) in its distal end zone, a tubular insulating element (7, 27, 37, 47) being affixed distally to the external stem, further comprising a tubular internal stem (8) configured within the external stem and resting against it in sealing manner and an electrode support (13) longitudinally displaceable inside the internal stem and supporting a cutting loop (15) in the region of the insulating element (7, 27, 37, 47), the inside space of the internal stem (8) and the gap (12) between the stems (2, 8) being proximally connected to liquid hookups (10, 11), the insulating element (7, 27, 37, 47) being configured in longitudinally mutually overlapping manner within an affixation zone (6) and the insulating element (7, 27, 37, 47) exhibiting a wall thickness distally from the affixation zone (6) larger than the wall thickness of the external stem (2), wherein the inside diameter of the insulating element (27, 47) is the same

Abstract: An improved bipolar resection device provides an intuitive finger grip control in a smaller sheath package. Bipolar electrode wires occupy less space by extending in a closely abutting relationship along the sheath and exiting in a one above the other orientation that provides a reduced profile, allowing for better visualization during resection. In various embodiments, resection motion is provided through a rotational sweep transverse to the longitudinal axis of the resection device and may include push/pull motion. The sheath may be oval in shape and the bipolar electrode connected to the bipolar electrode wires having a narrow cross-section to improve resection site visualization.

Abstract: A surgical instrument has a channel dimensioned to receive a viewing instrument and enable the viewing instrument to be moved to or from a position near an optically transparent portion of a blunt, enclosed distal end of a shaft to provide unobstructed viewing through the distal end, and a position to the proximal side of an enclosed working area to provide viewing of the enclosed working area. A surgical instrument also or alternatively has a fluid routing switch within a shaft which can selectively connect a fluid infusion channel to at least one fluid export pore or a return channel. A method involves moving a viewing instrument to or from a position near an optically transparent portion of a blunt, enclosed distal shaft end and a proximal side of an enclosed working area. A method also or alternatively involves changing a position of a fluid routing switch within the shaft.

Abstract: A resectoscope comprising a shaft that has an external tube and an internal tube. A lens system which has an angular field of view and can be rotated relative to the external tube along with the internal tube is disposed inside the internal tube. The distal end region of the internal tube is designed to slide in a sealed manner along the external tube. The external tube has holes in the distal end region proximal to the end region of the internal tube. The interior of the internal tube is connected as a supply duct while the intermediate space between the tubes is connected as a discharge duct. The disclosed resectoscope is characterized in that the holes are distributed along the circumference, while the internal tube is fitted with a covering device which covers the holes in a circumferential zone.

Abstract: A surgical instrument has a channel dimensioned to receive a viewing instrument and enable the viewing instrument to be moved to or from a position near an optically transparent portion of a blunt, enclosed distal end of a shaft to provide unobstructed viewing through the distal end, and a position to the proximal side of an enclosed working area to provide viewing of the enclosed working area. A surgical instrument also or alternatively has a fluid routing switch within a shaft which can selectively connect a fluid infusion channel to at least one fluid export pore or a return channel. A method involves moving a viewing instrument to or from a position near an optically transparent portion of a blunt, enclosed distal shaft end and a proximal side of an enclosed working area. A method also or alternatively involves changing a position of a fluid routing switch within the shaft.

Abstract: A camera assembly for positioning within a bodily passageway, including a camera, a catheter adapted to retain the camera, and a rotary coupling interconnecting the catheter and the camera. The catheter is provided with helically-wound threads thereon. The rotary coupling permits the catheter to rotate and thereby move axially while the camera remains rotationally stationary.

Abstract: A sheath device (1) suitable for endoscopic instruments (2) and comprising an elongated tubular member (4) having a proximal end (6), a distal open end (7), and at least one fluid channel (23). A flushing unit (5) is connected to the proximal end (6) of the tubular member (4) and comprises a proximal open end (8) suitable for receiving a first endoscopic instrument (2), a fluid inlet (16) in contact with said fluid channel (23), and a fluid outlet (17). The tubular member and the flushing unit together define a first interior guiding passage (10) for sheathing at least a part of said first endoscopic instrument (2). The connection between the tubular member (4) and the flushing unit (5) allows for axial rotation of the tubular member (4) in relation to the flushing unit (5).

Abstract: An otoscope 800 includes a lens 802 and an eyepiece 801 by which a doctor can examine the external ear cavity of a patient. The otoscope includes a handle 803 within which there is situated a printer to provide an instantaneous permanent record of an image viewed by the doctor. Upon activation of a trigger 817, a permanent graphic image is printed onto a sheet 816 that passes out of the handle 803 via slot 804.

Abstract: There is provided a medical examining device including an hollow sample tube defining a tube first end and an opposing tube second end. The sample tube includes a tube wall extending between the tube first and second ends. The tube wall includes tube inner and outer surfaces extending between the tube first and second ends. The tube inner surface defines a central sampling channel configured to longitudinally receive a sampling tool. A longitudinal channel partially extends through the tube wall between the tube first end towards the tube second end along an optical axis. The optical axis is angularly offset and extends toward the sampling channel axis adjacent the tube second end. A translucent lens is positioned in optical communication with the longitudinal channel adjacent the tube second end. A fiber optic viewing device is disposed within the longitudinal channel and is in optical communication with the translucent lens.

Abstract: A medical device is provided for use with an endoscope. The medical device can include a tissue resection device comprising an RF cutting wire. The tissue resection device can be supported for proximal and distal movement relative to the endoscope.

Abstract: A device, system and method for capturing in-vivo images allows for size or distance estimations for objects within the images. A scale may be overlayed on or otherwise added to the images and, based on a comparison between the scale and an image of an object, the size of the object and/or the distance of the object from an imaging device may be estimated or calculated.

Abstract: A guide system for use with an endoscope, and a method of use is disclosed. The guide system can include a track, in the form of a rail, and a mating member for engaging the rail. The guide system can also include an accessory, such as an accessory guide tube through which a medical instrument can be carried external of the endoscope. An end cap can be provided to support the track relative to the distal end of the endoscope.

Abstract: Devices, systems and methods for compressing, cutting, incising, reconfiguring, remodeling, attaching, repositioning, supporting, dislocating or altering the composition of tissues or anatomical structures to alter their positional or force relationship to other tissues or anatomical structures. In some applications, the invention may be used to used to improve patency or fluid flow through a body lumen or cavity (e.g., to limit constriction of the urethra by an enlarged prostate gland).

Abstract: The methods shown provide for the minimization of extravasation during arthroscopic surgery. Use of an anti-extravasation sheath having at least one drainage aperture allows a surgeon to drain excess fluids from the tissue surrounding the surgical field during an arthroscopic surgical procedures when the drainage aperture is disposed within the tissue surrounding an arthroscopic surgical field outside of the joint capsule. The method of performing arthroscopic surgery may further include providing fluid inflow and outflow to the joint capsule through inflow/outflow holes in the anti-extravasation sheath.

Abstract: A urological resectoscope having a tubular shaft (3) is disclosed, having a fixed optical guide tube (2), within which there is an optical system (1) that projects distally beyond the optical guide tube. An elongate, rod-shaped carrier (4) is provided, which carries a cutting instrument (6) at its distal end. The carrier (4) is longitudinally moveably mounted in the tubular shaft (3) outside the optical guide tube (2). The carrier is held distally from the optical guide tube (2) with a sliding tube (8) on the optical system (1) at a radial spacing from the axis of the optical system (1). The carrier is also secured in the peripheral rotary direction to the optical guide tube (2) with a rotary lock (9, 10). The rotary lock has a bar (9) parallel to the carrier (4) and connected to it and a distally open elongate slot (10) in the optical guide tube (2).

Abstract: The invention describes a disposable device for operations on the arteria haemorroidalis, which comprises a retractor tube (1), closed and rounded on the end (101) which is inserted in the anal cavity, and open and diverging on the external end (201) to which is connected a griping handle (M) which removable houses a luminous source (F). In the connection zone of the handle to the external mouth of the retractor there is provided a channel (C) which contains a parabola (5) which reflects the light supplied from said luminous source (F) and which sends the reflected light inside of the same retractor, to illuminate a lateral window (8) through which appears the rectal mucosa upon which the operation must be made for the ligature of the arteria haemorroidalis.

Abstract: Robotic devices, systems, and methods for use in robotic surgery and other robotic applications, and/or medical instrument devices, systems, and methods includes both a reusable processor and a limited-use robotic tool or medical treatment probe. A memory the limited-use component includes machine readable code with data and/or programming instructions to be implemented by the processor. Programming of the processor can be updated by shipping of new data once downloaded by the processor from a component, subsequent components can take advantage of the updated processor without repeated downloading.

Abstract: A laser energy delivery device is provided that is suitable for irradiating a body tissue with relatively long wavelength laser energy in the presence of an aqueous liquid without significant absorption of the laser energy by the liquid. The device includes an elongate hollow sheath that has an open aperture at its distal end portion and closed at its proximal end, a laser energy conduit such as an optical fiber or hollow wave guide, within the sheath, the distal end of the conduit being disposed near the open aperture at the distal end portion of the sheath, and the proximal end of the conduit being adapted for connection to a source of long wavelength laser energy. The sheath also includes an inlet port, spaced from the proximal end of the sheath, and adapted to receive and deliver a biologically compatible gas through the sheath to a body tissue site in contact with the open distal end of the sheath.

Abstract: An overtube according to the present invention has an insertion portion having a distal end portion and a proximal end portion, at least the distal end portion being inserted into an examination subject; a first lumen formed in the insertion portion and in which a device for carrying out medical procedures in the examination subject is freely inserted and removed; a tissue cutting portion that is to be disposed at the distal end portion of the insertion portion traversing the first lumen and that cuts the tissue of the examination subject; and a holding portion that holds the tissue cutting portion at a position removed from a position traversing the first lumen.

Abstract: A urological resectoscope stem (1) including an insulating muff (11) constituting the end zone of the stem (1), further including an outer tube (2, 9), an inner tube (3) and a cross-sectionally annular distally closed return flow duct (4) which is subtended at least over the larger part of its length between the outer tube (2, 9) and the inner tube (3), where the stem (1) is fitted with outwardly open, distally extending grooves (10), wherein the annular return flow duct (4) communicates directly by apertures (19) with the grooves (10).

Abstract: The present invention involves an apparatus and method to detect lesions in the lower female genital tract produced by the Human Papilloma Virus using an actinic light colposcope. The apparatus of the present invention comprises mechanical, electrical and optical (also referred to herein as the actinic light) components. The method of the present invention comprises the general steps of: (1) illumination, (2) excitement, and (3) suppression. The method disclosed and claimed herein in the clinical context takes between 15 and 20 minutes and reliable results are obtained during the patient's office visit.

Abstract: A ureter resectoscope with an elongate flexible stem tube (4) of substantial length and small external diameter, of which the distal end piece (5) is made from insulating material and which accommodates an optical unit (6) as well as a rod-shaped instrument carrier (11). The instrument carrier is disposed so as to be longitudinally displaceable parallel to the optical unit and bears on its distal end an electrode (12, 12?) that can be supplied with high-frequency current and, on its proximal end after passing through a bore in a main body (1) disposed on the proximal end of the stem tube, is fixed and electrically contacted on a slider (13) mounted so as to longitudinally displaceable.

Abstract: An endoscopic device for use at a site within a body includes an inner portion and a sheath surrounding the inner portion. The inner portion defines an operative channel and an optical channel. The operative channel provides a path for fluid to or from the body site. The sheath defines a pressure-sensing channel and a fluid channel that provides a path for fluid to or from the body site. The pressure-sensing channel and the fluid channel are defined between the sheath and the inner portion. The pressure-sensing channel is configured to couple to a pressure sensor to sense pressure at the body site.

Abstract: An endoscope hood comprises a cap section which has A cap section which has a nail section inside of an inner surface of a tip margin, an attaching section which is disposed to a base terminal of the cap section to be attached to a tip of an inserting section of the endoscope, a soft tube 16 of which tip aperture connects to an inside of the cap section so as to insert the snare sheath therethrough, a snare wire which is inserted in the cap section via the soft tube 16, and a snare wire feeding section which is formed by making a notch section in a part of the soft tube in the nail section in a corresponding position to the tip aperture, such that the snare wire can be spread in the cap section so as to be disposed inside of the nail section, and the center axis of the soft tube is disposed so as to pass through a range of the snare wire feeding section.

Abstract: A surgical instrument assembly for the treatment of hemorrhoids includes an anoscope and a hemorrhoid occlusion device. The anoscope includes a hollow body closed at a distal end and at least partially open at a proximal end to define a longitudinal channel. The hollow body has a sidewall provided with a window spaced from the distal end and the proximal end. A shutter member is slidably attached to the hollow body for selectively covering the window during an insertion operation and for opening the window to allow hemorrhoidal tissues to protrude through the window into the anoscope. The hemorrhoid occlusion device includes an instrument shaft provided at a distal end with two jaws, at least one of the jaws including a C- or U-shaped clamping member movable alternately away and towards the other of the jaws for clamping and occluding hemorrhoidal tissues protruding through the window into the anoscope.

Abstract: An endoscope has an optics housing provided at a proximal end, with an outer shank releasably connected to the optics housing, and with an inner shank which is arranged inside and parallel to the outer shank and is releasably connected to the optics housing. A corresponding endoscope set and a set of endoscope shanks are also provided.

Abstract: A system for endoscopic suturing is provided having an endoscope, such as a gastroscope, with a distal end locatable in the body of a patient and a flexible shaft extending to the distal end, a flexible accessory tube coupled to the endoscope to be movable relative to the endoscope's shaft, and a tip coupled to the shaft of the endoscope having an opening through which one end of the accessory tube is received. The system further includes a tissue suturing instrument and a suture securing instrument. Each of these instruments has a distal end coupled to a partially flexible shaft locatable through the accessory tube.

Abstract: A flexible direct vision fiberoptical viewing cable is placed within a urinary catheter with its tip located at a distal end of the catheter such that the surfaces of the distal end of both the viewing cable and the catheter are aligned so as to fit together in such a way as to form a composite smoothly curved surface to facilitate negotiating obstructions. The cable is maintained in this position within the catheter with the surfaces that comprise the tip of the instrument, maintained in alignment. The urethra is then viewed therethrough during all or part of the insertion procedure for observing and identifying obstructions that may be present and thereafter the fiberoptic cable is withdrawn while allowing the catheter to remain in place within the urethra. Another form of instrument includes a working sheath and an obturator. A method is also described for facilitating endoscopic examination and surgical procedures through the sheath.

Abstract: A dual-instrument resectoscope which includes an outer sheath having a distal portion that is inserted into a body cavity, a proximal portion that remains outside the body, and a longitudinal axis, referenced X; an optical system, for viewing the body cavity from said proximal portion, said optical system including an optical tube, located within said outer sheath and extending throughout the length of said outer sheath, an eye piece and a light source at said proximal portion, in communication with said optical tube, and an endoscope at said distal portion, in communication with said optical tube; first and second surgical instruments, located at said distal portion, for performing surgery in the body cavity; a first transmission mechanism, in communication with said first surgical instrument, and a second transmission mechanism, in communication with said second surgical instrument, each of said first and second transmission mechanisms providing its respective surgical instrument with independent motion, sa

Abstract: A medical device sheath apparatus including: a fitting being suitable for receiving the medical device in a self sealing manner; a first sheath for receiving the medical device as it passes through the fitting; a second sheath surrounding the first sheath; a dilator defining a treatment area, coupled to at least the second sheath, and being suitable for dilating a bodily cavity and passing therapeutic or diagnostic energy in such forms as electromagnetic radiation or acoustic energy there through; and, a window operatively positioned with respect to the first sheath so as to enable viewing of an area substantially adjacent the second sheath upon insertion of the medical device into the apparatus.

Abstract: A laser energy delivery device and method are provided for irradiating a body tissue with relatively long wavelength laser energy in the presence of an aqueous liquid without significant absorption of the laser energy by the liquid. The device includes an elongate hollow sheath that is open at its distal end and closed at its proximal end, a laser energy conduit such as an optical fiber or hollow waveguide, within the sheath, the distal end of the conduit being disposed near the open distal end of the sheath, and the proximal end of the conduit being adapted for connection to a source of long wavelength laser energy. The sheath also includes an inlet port, spaced from the proximal end of the sheath, and adapted to receive and deliver a biologically compatible gas through the sheath to a body tissue site in contact with the open distal end of the sheath.

Abstract: A urological resectoscope having an axially extending shaft tube, the proximal end thereof being fixed to a main body. A sliding body is proximally positioned in relation to the main body, and can slide in a parallel manner in relation to the axis thereof. The sliding body includes a receiver, a fixing device and a contacting device. An electrode that can be subjected to a high frequency, including a rigid electrode carrier having one external, insulated conductive wire, can be positioned in the resectoscope such that it can axially slide beyond the distal end of the shaft tube. In the assembly position, the electrode carrier extends through the shaft tube and the main body into the receiver, and can be fixed by the fixing device and contacted by the contacting device. The fixing device is proximally arranged in relation to the contacting device on the sliding body.

Abstract: A urological resectoscope includes a main casing and an optic guide plate mounted proximally to and a fixed distance from the main casing. A slider is displaceably guided between the main casing and the optic guide plate.

Abstract: A surgical device for applying radio frequency energy to a portion of a captured vessel is provided. The device including: a first tube having an internal lumen for passage of a viewing device therein, the first tube having a substantially transparent first window at a distal tip thereof; a second tube slidingly disposed over the first tube, the second tube having a substantially transparent second window at a distal tip thereof, the second tube further having a slot for capturing a portion of the vessel; an actuator for sliding the second tube relative to the first tube between open and closed positions, wherein in the closed position an inner surface of the second window is aligned with an outer surface of the first window and captures the portion of the vessel therebetween; and at least one electrode affixed to one of the inner or outer surfaces and facing the other of the inner or outer surfaces for applying radio frequency energy to the captured portion of the vessel.

Abstract: A ureter resectoscope with an elongate flexible stem tube (4) of substantial length and small external diameter, of which the distal end piece (5) is made from insulating material and which accommodates an optical unit (6) as well as a rod-shaped instrument carrier (11). The instrument carrier which is disposed so as to be longitudinally displaceable parallel to the optical unit and bears on its distal end an electrode (12, 12′) which that can be supplied with high-frequency current and, on its proximal end after passing through a bore in a main body (1) disposed on the proximal end of the stem tube, is fixed and electrically contacted on a slider (13) mounted so as to longitudinally displaceable.

Abstract: In the inside of an outer shank there are formed a supply channel and a discharge channel which extend parallel to the outer shank. The suction channel has a larger cross section than the supply channel.

Abstract: A urological resectoscope having an axially extending shaft tube, the proximal end thereof being fixed to a main body. A sliding body is proximally positioned in relation to the main body, and can slide in a parallel manner in relation to the axis thereof. The sliding body includes a receiver, a fixing device and a contacting device. An electrode which can be subjected to a high frequency, including an electrode carrier having one external, insulated conductive wire, can be positioned in the resectoscope such that it can axially slide beyond the distal end of the shaft tube. In the assembly position, the electrode carrier extends through the shaft tube and the main body into the receiver, and can be fixed thereto by the fixing device and contacted therein by the contacting device.

Abstract: A multifunctional medical tool for use in proctologic applications, during which a surgeon has to manipulate a surgical instrument, brought within the anal canal. The tool comprises a pistol-grip portion (10) to carry the surgical instrument, an endoscopic means (30′) for insertion within the anal canal and a surgical instrument (56), which can be brought in the anal canal through the endoscopic means (30′). The tool can be used for endoscopic examination or for various invasive proctologic treatments within the anal canal, rectum or distal colon.

Abstract: A continuously rinsing double-sheath endoscope, which includes an inner sheath and an outer sheath. The inner sheath includes a feed duct and receives an optics. The outer sheath surrounds the inner sheath and cooperates with the inner sheath to subtend a return flow duct. The outer sheath is fitted at its distal end zone with at least one aperture to establish fluid communication between the return duct and the ambience of the outer sheath. Cross-sectional geometric centers of gravity of the inner and outer sheaths are mutually shifted along most of the length of the return-flow duct subtended between them.

Abstract: The invention relates to a medical instrument with a handle (3) on which at least one gripping part (7), in particular a finger ring, is secured by a connecting clamp in a removable manner and is mounted in rotatable fashion on one handle part (4, 5), and the connecting clamp consists of a shaft (10) configured on one of the components (4, 5, 7) that are to be connected to one another and of a sheath (11) configured on the other component (7, 4, 5) and where the outer diameter of the shaft (10), forming an undercut (13) in the area of the free end of the shaft (10), exceeds the core diameter of the shaft (10) and the inner diameter of the sheath correspondingly has an area forming an undercut (14) and serving to receive the free end of the shaft (10), with a larger inner diameter, and an area (15) extending in the direction of the sheath opening with a lesser inner diameter.

Abstract: The invention relates to a urological resectoscope having an axially extending shaft tube, the proximal end thereof being fixed to a main body. A sliding body is proximally positioned in relation to the main body, and can slide in a parallel manner in relation to the axis thereof. Said sliding body comprises a receiver, a fixing device and a contacting device. An electrode which can be subjected to a high frequency, comprising a rigid electrode carrier having one external, insulated conductive wire, can be positioned in the resectoscope in such a way that it can axially slide beyond the distal end of the shaft tube. In the assembly position, said electrode carrier extends through the shaft tube and the main body into the receiver, and can be fixed by means of the fixing device and contacted by means of the contacting device.

Abstract: A surgical device for applying radio frequency energy to a portion of a captured vessel is provided. The device including: a first tube having an internal lumen for passage of a viewing device therein, the first tube having a substantially transparent first window at a distal tip thereof; a second tube slidingly disposed over the first tube, the second tube having a substantially transparent second window at a distal tip thereof, the second tube further having a slot for capturing a portion of the vessel; an actuator for sliding the second tube relative to the first tube between open and closed positions, wherein in the closed position an inner surface of the second window is aligned with an outer surface of the first window and captures the portion of the vessel therebetween; and at least one electrode affixed to one of the inner or outer surfaces and facing the other of the inner or outer surfaces for applying radio frequency energy to the captured portion of the vessel.

Abstract: A modular endoscope valve assembly is releasably mounted on the handpiece of an endoscope. This valve assembly includes an inlet port, an outlet port, and a valve manually operable selectively to block and to allow the flow of irrigation fluid from the inlet port to the outlet port. The valve assembly is releasably held to the handpiece of the endoscope by a mechanical fastener such as a pressure-sensitive adhesive, a strap, a snap lock, or otherwise. Once the valve assembly is releasably mounted to the handpiece, the physician using the endoscope can manually control the flow of irrigation fluid with the same hand as the one that supports the handpiece, thereby leaving the other hand of the physician free for surgical procedures. The modular valve assembly of this invention can be used with the widest variety of endoscopes, including flexible, rigid and semi rigid ureteroscopes as well as various percutaneous endoscopes.

Abstract: A resectoscope for internal surgery generally comprising an operating handle having extendible instruments such as a cutting tool, viewing means such as a telescope and a light conduit and passageways to supply and remove aspirating fluid to lubricate and to wash the surgical site wherein said extendible instruments are contained within a tube divided in cross section by longitudinal wall into first and second sectors, said first sector being smaller than the second sector and containing the viewing means and providing a passageway for the supply of as pirating fluid, said second sector containing the cutting tool and providing a large passageway for the removal of aspirating fluid and surgical morsels for collection and optionally having a valving mechanism activated by retraction or extension of the cutting tool.

Abstract: The invention relates to a urological resectoscope having an axially extending shaft tube, the proximal end thereof being fixed to a main body. A sliding body is proximally positioned in relation to the main body, and can slide in a parallel manner in relation to the axis thereof. Said sliding body comprises a receiver, a fixing device and a contacting device. An electrode which can be subjected to a high frequency, comprising an electrode carrier having one external, insulated conductive wire, can be positioned in the resectoscope in such a way that it can axially slide beyond the distal end of the shaft tube. In the assembly position, said electrode carrier extends through the shaft tube and the main body into the receiver, and can be fixed thereto by means of the fixing device and contacted therein by means of the contacting device.

Abstract: A resectoscope for internal surgery generally comprising an operating handle having extendible instruments such as a cutting tool, viewing means such as a telescope and a light conduit and passageways to supply and remove aspirating fluid to lubricate and to wash the surgical site wherein said extendible instruments are contained within a tube divided in cross section by longitudinal wall into first and second sectors, said first sector being smaller than the second sector and containing the viewing means and providing a passageway for the supply of aspirating fluid, said second sector containing the cutting tool and providing a large passageway for the removal of aspirating fluid and surgical morsels for collection and optionally having a valving mechanism activated by retraction or extension of the cutting tool

Abstract: An endoscope comprises a telescope (12), an electrode assembly (13) comprising at least one electrode (13T), and elongate conductive means (13S) for supplying electrosurgical power to said at least electrode from the proximal end of the conductive means. Means are provided for supporting the electrode assembly (13) on the telescope (12) for pivotal movement, in a plane substantially normal to the axis of the telescope, towards, and away from, an operational position in which the conductive means (13S) is substantially parallel to the telescope. Sealing means (16,29) seals the electrode assembly (13) to prevent fluid passing from an operation site adjacent to said at least one electrode (13T) to the proximal end of the conductive means (13S).

Abstract: An endoscope guide tube unit of the present invention comprises an outer sheath inserted into a body cavity of a human subject, an inner sheath arranged inside the outer sheath and a scope fixing tool provided on a proximal-end side. In the endoscope guide tube unit, an opening treatment window is provided as a side opening in a side wall area of the outer sheath near its distal end. The inner sheath is inserted to a position where the treatment window faces an affected region in the body cavity of a human being. It is possible to block the treatment window in the outer sheath. The affected region is treated via the treatment window opened in the outer sheath.