Abstract: An endoscopic implement including two electrodes connected to the terminals of a high frequency generator and mounted to a distal end of an elongated insertion element. An insulator is disposed between and secured to the two electrodes. One of the electrodes is mounted to a lateral surface of the insulator at a location that is laterally spaced from an axis of the insertion element. The other electrode is mounted at a distal end of the insulator.

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: 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: An hf resectoscope implement for cutting body tissue in a body cavity filled with an electrically conducting fluid and comprising a loop support and a loop-shaped cutting electrode mounted distally on the support. A plane of the cutting electrode slants relative to a longitudinal axis of the loop support. The implement also includes a neutral electrode mounted on the support. An insulator is mounted at the loop support between the electrodes such that any straight geometric line between the electrodes passes through the insulator. The neutral electrode and the insulator are configured to not significantly hamper the view available via optics fitted in the resectoscope stem tube.

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: An endoscopic implement including two electrodes connected to the terminals of an hf generator and mounted to a distal end of an elongated insertion element. An insulator is disposed between and secured to the two electrodes. One of the electrodes is mounted to a lateral surface of the insulator at a location that is laterally spaced from an axis of the insertion element. The other electrode is mounted at a distal end of the insulator.

Abstract: An hf resectoscope implement for cutting body tissue in a body cavity filled with an electrically conducting fluid and comprising a loop support and a loop-shaped cutting electrode mounted distally on the support. A plane of the cutting electrode slants relative to a longitudinal axis of the loop support. The implement also includes a neutral electrode mounted on the support. An insulator is mounted at the loop support between the electrodes such that any straight geometric line between the electrodes passes through the insulator. The neutral electrode and the insulator are configured to not significantly hamper the view available via optics fitted in the resectoscope stem tube.

Abstract: An endoscopic loop including an applying instrument comprises a pre-knotted loop of surgical suture material and a hollow shaft in the interior space of which the free thread portion runs. The free thread portion extends at least up to the proximal end of the shaft. In the interior space an actuating mechanism is mounted, the proximal end of which essentially extends up to the proximal end of the shaft. At the distal end of the actuating means a knife is attached which cuts the free thread portion upon actuation of the device.