Abstract: A drive unit for a rotatable high-frequency electrode of a medical resector for cutting, ablating, or coagulating human or animal tissue includes an engine device for generating a rotation movement and a coupling device for transmitting the rotation movement generated by the engine device to an axis coupled with the rotatable high-frequency electrode when the drive unit is coupled with the medical resector. The drive unit is configured to provide on the coupling device a rotation frequency in a range from 10 rpm to 200 rpm.

Abstract: A medical resector for oblating, cutting, or coagulating human or animal tissue includes a rotatable high-frequency electrode on the distal end of a shaft of the medical resector and an axle that runs from the proximal end to the distal end of the shaft and is mechanically coupled with the high-frequency electrode on the distal end. The axle is positioned on the distal end of the shaft in the center or as close as possible to the center of the cross-section of the shaft and on the proximal end of the shaft on the border or as close as possible to the border of the cross-section of the shaft.

Abstract: A device for removing organic tissue by means of high-frequency current comprises a loop carrier having a longitudinal axis and a distal end, a loop arranged at the distal end of the loop carrier and being able to be acted upon by high-frequency voltage, the loop having a loop end portion, a connection element connecting the loop with the loop carrier and having a distal connection element portion, the loop end portion and the distal connection element portion forming a wedge-shaped cutter.

Abstract: A medical resector for oblating, cutting, or coagulating human or animal tissue includes a rotatable high-frequency electrode on the distal end of a shaft of the medical resector and an axle that runs from the proximal end to the distal end of the shaft and is mechanically coupled with the high-frequency electrode on the distal end. The axle is positioned on the distal end of the shaft in the center or as close as possible to the center of the cross-section of the shaft and on the proximal end of the shaft on the border or as close as possible to the border of the cross-section of the shaft.

Abstract: A drive unit for a rotatable high-frequency electrode of a medical resector for cutting, oblating, or coagulating human or animal tissue includes an engine device for generating a rotation movement and a coupling device for transmitting the rotation movement generated by the engine device to an axis coupled with the rotatable high-frequency electrode when the drive unit is coupled with the medical resector. The drive unit is configured to provide on the coupling device a rotation frequency in a range from 10 rpm to 200 rpm.

Abstract: A device for resection and/or ablation of organic tissue by means of high-frequency current comprises, at the distal end, a loop that can be acted upon by high-frequency voltage and, in the proximal direction from the loop, at least one helix that can likewise be acted upon by high-frequency voltage, the arrangement of loop and helix being able to be moved in rotation about the longitudinal axis of the helix.

Abstract: A device for removing organic tissue by means of high-frequency current comprises a loop carrier having a longitudinal axis and a distal end, a loop arranged at the distal end of the loop carrier and being able to be acted upon by high-frequency voltage, the loop having a loop end portion, a connection element connecting the loop with the loop carrier and having a distal connection element portion, the loop end portion and the distal connection element portion forming a wedge-shaped cutter.

Abstract: A device for resection and/or ablation of organic tissue by means of high-frequency current comprises, at the distal end, a loop that can be acted upon by high-frequency voltage and, in the proximal direction from the loop, at least one helix that can likewise be acted upon by high-frequency voltage, the arrangement of loop and helix being able to be moved in rotation about the longitudinal axis of the helix.

Abstract: The invention relates to an apparatus for irrigating body cavities with a fluid, comprising a reservoir containing the irrigating fluid, a pumping unit which pumps the irrigating fluid from the reservoir via an instrument into the body cavity to be treated, a collector vessel receiving the irrigating fluid flowing out of the body cavity, and measuring means which detect the difference between the introduced quantity of irrigating fluid and the flowing-out quantity of irrigating fluid. The invention excels itself by the aspect that an electronic evaluation unit determines, on the basis of the output signal of the measuring means, the quantity of irrigating fluid lost and additionally the rate of variation of the lost quantity versus time.

Abstract: Tubular pessary as a contraceptive means, which can be carried or worn on either side by hysteroscopy.The invention relates to a tubular pessary having a contraceptive action through the obturation of the proximal uterine tube in non-surgical manner by hysteroscopy and which can easily be worn on either side.The tubular pessary has a cylindrical, sensitive central part permitting the obturation of the uterine tube. It has a distal elastic loop, which prevents sliding back into the uterus of the device. It has a proximal elastic loop, which prevents migration of the device into the abdominal cavity and which can easily be removed through a hysteroscope.The object of the invention is to overcome the inadequacies of the known contraceptive means.

Abstract: The invention relates to a tubular pessary having a contraceptive action through the obturation of the proximal uterine tube in non-surgical manner by hysteroscopy and which can easily be worn on either side.The tubular pessary has a cylindrical, sensitive central part permitting the obturation of the uterine tube. It has a distal elastic loop, which prevents sliding back into the uterus of the device. It has a proximal elastic loop, which prevents migration of the device into the abdominal cavity and which can easily be removed through a hysteroscope.The object of the invention is to overcome the inadequacies of the known contraceptive means.

Abstract: An optical system related to optical and rigid endoscopes (8) and allowing, during the same endoscopic examination a switch from low power magnification to high power magnification observation by contact of this surface and vice versa. This optical system is comprised of a lens or a system of lenses to be placed in front of the existing endoscope objective and is further comprised of a lens or a system of lenses to be placed between the ocular of this endoscope and the eye. This invention may be used in medical or industrial endoscopy.