Abstract: A device for administering a fluid is provided, with a cylinder (16, 116) which has an open dispensing end (17), a piston (36) which is displaceable between a front and rear end position in the cylinder (16, 116) and is connected to a piston rod (35) that protrudes along a first direction beyond a rear end of the cylinder (16, 116) opposite the open dispensing end (17) and is guided in a receiving block (10), a nonreturn valve (18) closing the open dispensing end (17), and a tensioning device (S) which is connected to the piston rod (35, 135) and is arranged in the receiving block (10), wherein the tensioning device (S), when the piston (36) is in its front end position, can move the piston rod (35, 135) in a tensioning operation along the first direction until the piston (36) is in its rear end position in order thereby to fill the cylinder (16, 116) with the fluid to be administered and in order to pretension the piston rod (35, 135) toward the open dispensing end (17), and wherein the tensioning device (S

Abstract: An endoscope includes a main unit, which includes a centring bush with an inner surface which defines an axis of rotation; a first eccentric bush, which is mounted rotatable about the axis of rotation in the centring bush and comprises a first centring inner surface which defines a first rotation axis, wherein the first rotation axis is offset parallel to the axis of rotation by a first offset; a second eccentric bush which is mounted rotatable about the first rotation axis in the first eccentric bush and comprises a second centring inner surface which defines a second rotation axis, wherein the second rotation axis is offset parallel to the first rotation axis by a second offset; and an eyepiece, which is connected to the second eccentric bush and has an optical axis which is parallel to the second rotation axis.

Abstract: A device for administering a fluid is provided, with a cylinder (16, 116) which has an open dispensing end (17), a piston (36) which is displaceable between a front and rear end position in the cylinder (16, 116) and is connected to a piston rod (35) that protrudes along a first direction beyond a rear end of the cylinder (16, 116) opposite the open dispensing end (17) and is guided in a receiving block (10), a nonreturn valve (18) closing the open dispensing end (17), and a tensioning device (S) which is connected to the piston rod (35, 135) and is arranged in the receiving block (10).

Abstract: An endoscope includes a main unit, which includes a centring bush with an inner surface which defines an axis of rotation; a first eccentric bush, which is mounted rotatable about the axis of rotation in the centring bush and comprises a first centring inner surface which defines a first rotation axis, wherein the first rotation axis is offset parallel to the axis of rotation by a first offset; a second eccentric bush which is mounted rotatable about the first rotation axis in the first eccentric bush and comprises a second centring inner surface which defines a second rotation axis, wherein the second rotation axis is offset parallel to the first rotation axis by a second offset; and an eyepiece, which is connected to the second eccentric bush and has an optical axis which is parallel to the second rotation axis.

Abstract: A rotation mechanism (rotating device) that can be easily accessed by the surgeon's finger to rotate an endoscope or similar instrument. The rotation mechanism is a device/component with a “starfish” configuration, which can be attached to the endoscope/arthroscope just distal to the eyepiece (or to an alternate attachment to a camera). The starfish component has a plurality of projections that extend radially from the endoscope axis, and beyond the diameter of the mechanism on the camera head that grasps the arthroscope eyecup. The projections can be easily accessed by the surgeon's finger to rotate the endoscope.

Abstract: Provided is an endoscope with a handle and an endoscope shaft connected to the handle, which has a bendable section and a rigid section, adjoining it, with a support extending in the longitudinal direction of the endoscope shaft, wherein the bendable section has a flexible outer tube the end of which facing the rigid section rests on the support, wherein a fixing sleeve is connected to the end section and covers the end of the outer tube facing the rigid section such that said end is clamped for fixing between the fixing sleeve and the support.

Abstract: An endoscope is provided, comprising a first tube whose distal end is sealed with a cover glass disposed in a mount and an electric heating system for heating the cover glass, with the heating system comprising two electric connections which can be connected with a power source, and an electrically conductive coating which is applied to the inside of the cover glass and comprises two mutually spaced contact sections, of which one each is electrically connected with one of the connections, and with the mount being electrically conductive and a first of the two contact sections being electrically connected via the mount with the associated connection.

Abstract: Provided is an endoscope with a handle and an endoscope shaft connected to the handle, which has a bendable section and a rigid section, adjoining it, with a support extending in the longitudinal direction of the endoscope shaft, wherein the bendable section has a flexible outer tube the end of which facing the rigid section rests on the support, wherein a fixing sleeve is connected to the end section and covers the end of the outer tube facing the rigid section such that said end is clamped for fixing between the fixing sleeve and the support.

Abstract: The invention relates to a medical instrument for cutting biological and especially human tissue, having a hollow cutting tube that can rotate by means of an engine around its longitudinal axis, on whose distal end at least one blade is mounted, as well as with a handle in which the cutting tube is mounted for control purposes. In order to produce a medical instrument for cutting biological and especially human tissue in which the powering of the cutting tube is of simple construction and involves minor losses of capacity, it is proposed with the invention that the engine is configured as a hollow-shaft engine mounted on the cutting tube.

Abstract: An endoscope is provided, comprising a first tube (11) whose distal end is sealed with a cover glass (15) disposed in a mount (14) and an electric heating system for heating the cover glass (15), with the heating system comprising two electric connections (6, 7) which can be connected with a power source, and an electrically conductive coating (22) which is applied to the inside (19) of the cover glass (15) and comprises two mutually spaced contact sections (23, 24), of which one each is electrically connected with one of the connections (6, 7), and with the mount (14) being electrically conductive and a first (23) of the two contact sections (23, 24) being electrically connected via the mount (14) with the associated connection (6, 7).

Abstract: The invention relates to a medical instrument for cutting biological and especially human tissue, having a hollow cutting tube that can rotate by means of an engine around its longitudinal axis, on whose distal end at least one blade is mounted, as well as with a handle in which the cutting tube is mounted for control purposes. In order to produce a medical instrument for cutting biological and especially human tissue in which the powering of the cutting tube is of simple construction and involves minor losses of capacity, it is proposed with the invention that the engine is configured as a hollow-shaft engine mounted on the cutting tube.