Abstract: A microsurgical instrument, with a handle and a removably insertable engine block. The handle can be coupled with a work piece and includes a base body and, mounted in the base body, an input shaft for motorized actuation of at least one degree of freedom of the work piece. In addition, the handle has an engine interface, into which the engine block can be installed, and on which at least an electric contact and a mechanical coupling are situated, the mechanical coupling includes a claw coupling element that is non-rotatably connected with the input shaft and can be coupled with a corresponding claw coupling element of the engine block. In addition, the handle has an actuation element, with which a current flow through the electric contact of the engine interface can be activated and deactivated. The claw coupling element of the handle is mounted on the input shaft so that it can slide longitudinally.

Abstract: A medical instrument with a hollow shaft and at the distal end a tool actuated via a spring-loaded pull cable, wherein the tool is rotatable about the longitudinal axis of the shaft and is mounted such that it can be angled with respect to the longitudinal axis of the shaft. Actuation of the pull cable and rotation and angled positioning of the tool take place via separate drives, which are arranged on a handle. An anti-twist means protects the pull cable against torsion.

Abstract: A medical instrument comprises an interface for electrically connecting a drive unit with the medical instrument. The interface has a plurality of electrical contacts arranged in a connecting surface. At least one of the contacts in the connecting surface is electrically isolated from the remaining contacts by a recess or an elevation.

Abstract: A microsurgical instrument, with a handle and a removably insertable engine block. The handle can be coupled with a work piece and includes a base body and, mounted in the base body, an input shaft for motorized actuation of at least one degree of freedom of the work piece. In addition, the handle has an engine interface, into which the engine block can be installed, and on which at least an electric contact and a mechanical coupling are situated, the mechanical coupling includes a claw coupling element that is non-rotatably connected with the input shaft and can be coupled with a corresponding claw coupling element of the engine block. In addition, the handle has an actuation element, with which a current flow through the electric contact of the engine interface can be activated and deactivated. The claw coupling element of the handle is mounted on the input shaft so that it can slide longitudinally.

Abstract: A work device for a microsurgical instrument that includes a proximal coupling portion which can be coupled with a handle. A hollow shaft extends from the coupling portion to a distal tool end on which is positioned a jaw-shaped work apparatus, the work apparatus having two arms which can pivot with respect to one another, and the work apparatus being mounted so that it can rotate about the longitudinal axis of the shaft. In the interior of the shaft a power and torque transmission hose runs from the coupling portion to the distal tool end and is operatively connected with the work apparatus. The power and torque transmission hose is made rigid in at least one portion, situated between the coupling portion and the distal tool end, by at least one pulling element running in the longitudinal direction of the power and torque transmission hose.

Abstract: A medical instrument comprises an interface for electrically connecting a drive unit with the medical instrument. The interface has a plurality of electrical contacts arranged in a connecting surface. At least one of the contacts in the connecting surface is electrically isolated from the remaining contacts by a recess or an elevation.

Abstract: A medical instrument with a hollow shaft and at the distal end a tool actuated via a spring-loaded pull cable, wherein the tool is rotatable about the longitudinal axis of the shaft and is mounted such that it can be angled with respect to the longitudinal axis of the shaft. Actuation of the pull cable and rotation and angled positioning of the tool take place via separate drives, which are arranged on a handle. An anti-twist means protects the pull cable against torsion.

Abstract: A handle for a medical instrument having a handle housing that can be closed by a cover and having at least one drainage or irrigation hose in the handle housing that can be connected to a hose connection support. To create a handle that is of a simple construction and ensures a reliable fluid-proof insulated connection of the at least one hose and the hose connection support while protecting a material of the at least one hose, it is proposed that each drainage or irrigation hose should be connectable by an adaptor to the hose connection support and that the adaptor upon closing the handle housing can be pressed against the hose connection support by a stop positioned on the cover or on a base portion of the handle housing.

Abstract: A handle for a medical instrument having a handle housing that can be closed by a cover and having at least one drainage or irrigation hose in the handle housing that can be connected to a hose connection support. To create a handle that is of simple construction and ensures a reliable fluid-proof insulated connection of the hose and hose connection support while protecting the hose material, it is proposed that each drainage or irrigation hose should be connectable by an adaptor to the related hose connection support and that the adaptor upon closing the handle housing can be pressed against the hose connection support by a stop positioned on the cover or on the base portion of the handle housing.