Abstract: An endoscopic instrument is provided comprising a shaft having an endoscope optical system arranged therein, which has a distal front face. The instrument also comprises a working element arranged in the shaft. The shaft provides for the supply of an irrigation fluid. Flow-influencing means are provided, such that the irrigation fluid reaches in front of the front face of the endoscope optical system and can eliminate contaminations, which obstruct the view through the endoscope optics.

Abstract: The invention relates to a medical instrument for removing tissue comprising a tool at its distal end which can be supplied with high frequency power. The instrument includes an HF power terminal and an HF power supply line extending frown a proximal end region of the instrument to its distal end. In the present instrument, the HF power supply is configured as a drive shaft for rotary drive of the tool. Furthermore, contact means are provided electrically connected to the HF power terminal, which electrically contact the drive shaft.

Abstract: An endoscopic instrument is provided comprising a shaft having an endoscope optical system arranged therein, which has a distal front face. The instrument also comprises a working element arranged in the shaft. The shaft provides for the supply of an irrigation fluid. Flow-influencing means are provided, such that the irrigation fluid reaches in front of the front face of the endoscope optical system and can eliminate contaminations, which obstruct the view through the endoscope optics.

Abstract: The invention relates to a medical instrument for removing tissue comprising a tool at its distal end which can be supplied with high frequency power. The instrument includes an HF power terminal and an HF power supply line extending from a proximal end region of the instrument to its distal end. In the present instrument, the HF power supply is configured as a drive shaft for rotary drive of the tool. Furthermore, contact means are provided electrically connected to the HF power terminal, which electrically contact the drive shaft.

Abstract: A high frequency electrode to be used for example in a resectoscope is provided. The electrode includes a sharp cutting edge and a lower coagulating surface which is curved or approximately curved to reduce irritation of tissue by the trailing edge and provides good possibilities to excavate tissue.

Abstract: A handpiece is disclosed for a multifunctional instrument for endoscopic surgery. The handpiece comprises a case; a connector disposed on the case and adapted to be connected to connecting lines such as electrical lines, liquid supply and discharge lines, and the like; at least one ultrasonic transducer arranged in the case; an ultrasonic sonotrode transmitting the ultrasonic energy; and at least one switch for controlling functions of the handpiece. The handpiece is characterized by, among other things, the provision that the sonotrode includes a long and thin probe section with a duct composed of several segments which are welded to each other.

Abstract: Disclosed is a high-frequency electrode havingan insulated lead extending in the direction of the longitudinal axis of a monopolar operating high-frequency instrument, andan electrode component, which is connected to the lead in an electrically conducting manner and with which the to be treated tissue is brought to engage, and which comprises two stirrups and a central section,characterized by the fact that said central section is designed like a plate having a longitudinal extension, i.e. an extension in the direction of the longitudinal axis of the instrument respectively the lead from 2 to 6 mm and that the stirrups are made of wire material having an essentially smaller longitudinal extension.