Abstract: The invention relates to a tubular medical instrument having a hollow shaft, a handle positioned on the proximal end of the shaft, and at least one tool actuation element that is positioned in the hollow shaft and has on its distal end a tool, wherein the tool actuation element can be coupled with at least one actuation mechanism of the handle to actuate the tool and wherein the tool actuation element and the hollow shaft can be detachably connected to one another by a coupling mechanism. To create a coupling mechanism that is essentially free of any play and is simple to operate, it is proposed with the invention that the stopping of the coupling mechanism between the tool actuation element and the hollow shaft should be dependent on the position of the tool.

Abstract: The invention relates to a tubular medical instrument having a hollow shaft, a handle positioned on the proximal end of the shaft and equipped with at least two gripping members, and at least one push-pull rod that is positioned in the hollow shaft and has on its distal end a tool consisting of at least two jaw members, wherein for opening and closing at least one jaw member of the tool, the push-pull rod can be coupled with at least one rotatable gripping member of the handle and wherein the push-pull rod and the handle can be detachably connected to one another by a coupling mechanism that is configured as at least one clamping device comprising at least one clamping claw characterized in that the at least one clamping claw can rotate in a guide track mounted between a closed position and an open installation position.

Abstract: A medical instrument serves for spreading vertebral bodies apart and for operations in an area of a spinal column. A sleeve is provided and several spreadable elements protrude from a distal end of said sleeves. Said several spreadable elements are folded together to form a conical body, said conical body serves for inserting between adjacent vertebral bodies of a spinal column. A spreader is provided which can be driven into said conical body thereby spreading said several spreading elements, said spreading elements pushing away said two adjacent vertebral bodies.

Abstract: A medical instrument for dissecting tissue in the human or animal body comprises a shaft. At least one movable tool is arranged at a distal end of the shaft. At least one movable grip element is arranged at a proximal end of the shaft. A force transmission element extends along the shaft, which force transmission element is movable relative to the latter and transmits thrust and/or tension forces and whose proximal end is non-positively joined to the at least one movable grip element and whose distal end is non-positively joined to the at least one movable tool. The shaft is further provided with a bend at least one point between the distal end and the proximal end. The force transmission element is configured, at least in the region of the bend, as a flexible tubular element conforming to the bend, which is guided in contact with the shaft.

Abstract: A medical instrument comprises a shaft, a work element at the distal end of the shaft, a handle with at least one movable part for actuating the work element and a securing element for securing an endoscope which has an endoscope shaft and an eyepiece. The distal end of the endoscope is able to be arranged in the area of the distal end of the shaft, and the proximal end of the endoscope is able to be arranged in the area of the handle of the instrument, and the endoscope is displaceable in the longitudinal direction of the shaft. The securing element is designed in such a way that the endoscope can be arranged on the outside of the instrument, the eyepiece of the endoscope, in the state when the latter is arranged on the instrument, lying outside the longitudinal axis of the shaft of the instrument.

Abstract: The invention relates to a medical instrument with a hollow instrument canal that is configured inside a housing and can be closed by means of at least one valve body and rotated into open position by means of an instrument inserted into the instrument canal. The at least one valve body is configured as a flap consisting of an essentially non-bendable material mounted on the housing so that it can be rotated by means of an elastic, bendable connecting element configured as a wire spring in such a way that the valve body is pre-tensioned in the closed direction. A medical instrument with a valve body of simple construction, which insulates reliably, is distinguished according to the invention in that the connecting element on the one hand is secured on the housing and on the other hand carries the valve body, so that the connecting element can be secured in a ring groove configured in the housing.

Abstract: An endoscopic instrument comprises a shaft, comprising a proximal end and a distal end. A grip comprising a handle is arranged at said proximal end of said shaft and a tool having at least an open and a closed position is arranged at said distal end of said shaft. Said shaft comprises at least two sections, a first section and a second section, which can be articulated with respect to said first section. Said second section comprises said tool. Said instrument further comprises an actuating element, by means of which said handle is in operative connection with said second section and with which an articulation of said second section can be initiated.

Abstract: The invention relates to a medical instrument with a shaft having on its proximal end a handle consisting of two gripping members and on its distal end a tool consisting of two jaw members that can rotate with respect to one another around a common rotation point, whereby the jaw members are rotated for opening and closing the tool by means of a push pin which is connected on the proximal end with a gripping member of the handle which is configured to be rotatable and which on the distal end is connected with each of the jaw members by means of one toggle joint.

Abstract: A medical instrument for irrigation and/or suction has an instrument body in which at least one flow channel is present for the passage of a fluid, at least one shut-off member for alternately shutting off the at least one flow channel, and an actuating member for actuating the shut-off member. The at least one shut-off member is a ball which, in a closure position, lies sealingly on a sealing edge of the flow channel so that it closes off the internal cross section of the flow channel, the ball being movable, between the closure position for closing the flow channel and a release position for freeing the flow channel, substantially in a direction transverse to the longitudinal direction of the flow channel, and the actuating member for moving the ball between the closure position and the release position being movable in a direction transverse to the flow channel.

Abstract: An endoscopic surgical instrument includes an insertion portion adapted to be inserted into a body, the insertion portion having a proximal end extending outside the body during use and a distal end located within the body during use, a working part attached to the distal end of the insertion portion, the working part being disposed within the body during use, and a handle portion attached to the proximal end of the insertion portion, the handle portion being disposed outside of the body during use, the handle portion being actuatable to actuate the working part via a force transmission member. The working part is a member of one of a plurality of subsets of working parts, members of each subset of working parts being visually distinguishable from members of each other subset of working parts by color.

Abstract: The balloon trepan is used in minimal invasive surgery in order to create or maintain the area required for an operation by dilation of tissue or dissection of layers of tissue. The connection between the balloon and the sleeve of the trepan must be easily and securely produced without enlarging the outer diameter of the balloon trepan. The balloon must be secured against slipping and must be able to resist pressure during inflation. The balloon (11, 12) surrounding the distal end of the trepan (15, 16) is pressed against a peripheral step (66, 95) formed on the sleeve of the trepan (15, 16) by means of a clamping element (18, 102) in order to fix it to the sleeve (15, 16) of the trepan. The clamping element (18, 102) is displaced by rotation of at least one part of the clamping element (18, 102) about a longitudinal axis of the sleeve (15, 16) of the trepan in a longitudinal direction in relation to the said sleeve (15, 16).

Abstract: A medical instrument has a shaft and a tool which is mounted on a distal end of the shaft in such a way as to be removable therefrom. The shaft has an inner shaft and a tubular shaft which surrounds the inner shaft and which is longitudinally displaceable relative thereto. The tool is locked on the shaft when the tubular shaft is in a locking position pushed forward relative to the inner shaft, and it can be removed from the shaft when the tubular shaft is in a release position pulled back relative to the inner shaft. For easier handling of the instrument when changing the tool, it is proposed that the instrument has an actuating element which is movable substantially transversely with respect to the longitudinal direction of the tubular shaft and which is connected operatively to the tubular shaft in such a way that the tubular shaft is moved from the locking position to the release position by moving the actuating element from a first position to a second position, and vice versa.

Abstract: The invention relates to a sealing device for a rectoscope for attaching on a sealing receiver of the rectoscope, and includes a sealing and an additional sealing element, where the sealing has a clip for securing to the sealing receiver of the rectoscope, an end surface with an aperture for introducing a medical instrument, and a sealing sleeve connecting the clip and the end surface to one another and where the end surface is mounted so as to be tiltable with respect to the rectoscope.

Abstract: The invention relates to a medical instrument with a shaft (2), a handle (3) mounted on the proximal end of the shaft (2), and a tool (4) mounted on the distal end of the shaft (2) and capable of being activated by means of the handle (3), where the handle (3) and the tool (4) are in active connection by means of at least one activation rod (6). To make it possible for the tool (4), in particular as a one-way tool, to be secured simply and rapidly on the activation rod (6), the invention proposes that the tool (4) should have a tool shaft (7) for securing it to the activation rod (6) and that the tool shaft (7) and the activation rod (6) in order to be secured to one another should have protuberances (8) and/or recesses (9), which can be engaged, at least partially as a form-locking connection, with corresponding recesses (9) or protuberances (8) of the other respective component (6, 7 or 7, 6).