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: 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: A dilation device including a dilation instrument which includes a distal radially expandable section which is coupled via an elongate shank to a handling section, and an expandable covering with a closed distal end and an open proximal end, for the expansion section of the dilation instrument. The covering has a shank section extending along the shank of the dilation instrument. The open proximal end of the covering is detachably coupled to the distal end of the handling section of the dilation instrument. Furthermore, the covering is disclosed per se, which consists of a mesh material and has a shank section, which is connected to a coupling sleeve at the open proximal end.

Abstract: A tool, which is detachably coupleable with a shaft for a micro-invasive surgical instrument, includes an articulated device on which a jaw member or other active device is affixed, a connecting component that is rotatably connected with the articulated device and that includes a coupling device for detachable coupling with a distal end of a shaft, a transmission rod to transmit at least either a force or torque from one proximal end of a shaft detachably coupled with the tool to the jaw member or other active device, and a locking device that is coupled with the transmission rod in such a way that the locking device can be rotated with respect to the transmission rod but not slid axially, so that the locking device is mounted in the connecting component in such a way that it can be axially slid but not rotated in relation to the connecting component.

Abstract: A holding device for medical instruments with a bracket on which at least one medical instrument can be affixed and with at least one joint to position the bracket and/or the medical instrument, so that the at least one joint is configured as a ball and socket joint that is equipped with at least one bearing shell and one pivot ball and whose pivot angle around the longitudinal axis of the joint is restricted by a pivot guard. The pivot guard is positioned inside the pivot ball to provide a holding device for medical instruments whose pivot guard allows for a compact structure of the ball and socket joint.

Abstract: A medical punch with a hollow shaft, a tool point that is positioned on the distal end of the shaft and includes a rigid cutting part and a cutting part that can slide with respect to the rigid cutting part, and with a handle positioned on the proximal end of the shaft, such that the displaceable cutting part and the handle are operatively connected with one another by a push/pull device that is displaceably mounted in the hollow shaft and an anti-tilt mechanism is positioned on the tool point to stabilize the cutting parts in their axially parallel alignment to one another. The rigid cutting part includes a sleeve-shaped proximal portion that encloses the displaceable cutting part and a distal punch portion configured as a single unit with the sleeve-shaped portion and that the rigid cutting part should be detachably connected with the hollow shaft by a coupling mechanism formed on the sleeve-shaped portion.

Abstract: A medical tubular shaft instrument having a tube and a force transmission element extending lengthwise through the tube. The tube includes a jaw member arrangement on a distal end, which is coupled with the force transmission element and actuated by sliding the force transmission element along the tube. The tube includes a handpiece on a proximal end. The force transmission element, over part of its length, has a smaller outer diameter than the inner diameter of the tube to configure a ring-shaped flushing canal, and, one section along its length, it is centered in the tube in this section. The force transmission element includes precisely one section in which it is centered in the tube, and the section is in the vicinity of the distal end of the force transmission element and is perpendicular to its longitudinal axis by reshaping the force transmission element.

Abstract: A shank for a medical instrument includes a controlled curvable portion or a hinge, an uncontrolled flexible portion, and a shank coupling device for the releasable mechanical connection of the shank to a maneuvering device.

Abstract: A medical instrument includes an outer shaft, a transmitting device arranged for transferring at least a force or torque and a tool having a coupling device for detachable mechanical connection of the tool and a coupling device on the distal end of the outer shaft and having a transferring coupling device for the detachable mechanical connection of the tool and a tool coupling device on the distal end of the transmitting device. The mechanical connection of the tool coupling device on the outer shaft and the outer shaft coupling device buildable by moving the outer shaft in relation to the tool in a first direction. The mechanical connection of the tool and transfer coupling devices on the transmitting device and device buildable by moving the transmitting device in relation to the tool in a second direction. The first direction opposite to the second direction.

Abstract: A medical instrument includes an outer shaft, a manipulation device at the proximal end of the outer shaft, a tool at the distal end of the outer shaft, with a first effecting device for a first function and a second effecting device for a second function, a first transmission device in the outer shaft for transmitting at least either a force or a torque for controlling the first effecting device, and a second transmission device in the outer shaft for transmitting at least either a force or a torque for controlling the second effecting device. The outer shaft is at least either curved or able to be curved or has a pivot joint. The first transmission device and the second transmission device are each designed to be flexible at least in sections.

Abstract: The invention relates to a medical gripping and/or cutting instrument having a shaft on whose distal end a tool is positioned consisting of at least two jaw members and on whose proximal end a handle is positioned consisting of at least two gripping members. For opening and closing, at least one jaw member of the tool can move by means of a rotatably configured gripping member of the handle with respect to the other jaw member of the tool, and the rotatable gripping member of the handle can be secured by means of a notching mechanism on the at least one other gripping member of the handle, with the jaw members in an at least partly closed position.

Abstract: A medical instrument includes a shaft whose distal end is bendable. Arranged at the proximal end of the shaft there is a handle on which a bend control mechanism for controlling the bending movement is arranged. The bend control mechanism has a pivotable control element. The pivotable control element runs over a friction element, and an actuating element is provided via which the friction element can be brought out of a locking engagement with the control element.

Abstract: A holding device for medical instruments, with a bracket on which at least one medical instrument can be affixed and with at least one joint to position the bracket and/or the medical instrument, so that the at least one joint is configured as a ball and socket joint that is provided with at least one bearing shell and a pivot ball and that can be converted between a position that releases the joint and one that blocks the joint. To provide a holding device for medical instruments that is simple to operate, makes possible a rapid blocking and releasing of the at least one joint, and in addition ensures that unintentional release of the blocking is excluded to the greatest extent possible, it is proposed with the invention that the bearing shell should be of rigid configuration and the pivot ball should be capable of being affixed in the bearing shell by clamping by at least one blocking element.

Abstract: A medical instrument includes a shaft which is connected at the proximal end to a handle, and it also includes an insert which is guided along the shaft and which is connected at the proximal end to a movable grip part of the handle. At its distal end, the insert has a tool which can be actuated by pivoting of the grip part. A lock is also provided which can be brought into locking engagement with the movable grip part. To cancel the lock function, a detent is provided which can be brought between lock and movable grip part, such that the lock function can be cancelled by the detent.

Abstract: A sealing means for sealing an introduction facility for a medical instrument includes a first sealing membrane of an elastic material with a first slit and a second sealing membrane of an elastic material with a second slit. The first sealing membrane and the second sealing membrane abut laminarily on each other. The first sealing membrane and the second sealing membrane are arranged such that the first slit and the second slit are not parallel with each other. Each of the first slit and the second slit is unbranched.

Abstract: A medical instrument comprises a shaft whose distal end is bendable. Arranged at the proximal end of the shaft there is a handle on which a bend control mechanism for controlling the bending movement is arranged. The bend control mechanism has a pivotable control element. The pivotable control element runs over a friction element, and an actuating element is provided via which the friction element can be brought out of a locking engagement with the control element.

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

Abstract: A medical instrument comprises a shaft, a handle connected to said shaft and having a movable gripping part. An insert is guided along said shaft and connected to said movable part at its proximal end. A tool is provided at a distal end of said insert. A lock is provided for locking said movable grip part in a position. A detent is provided for releasing said locking of said lock. A rotatable stopping member is arranged on said movable grip part. A rotational plane of said rotatable stopping member lying across a longitudinal axis of a movement direction of said movable grip part. Said rotatable stopping member can be rotated between a first position not influencing said locking function of said lock and a second position keeping said lock permanently away from said locking engagement.

Abstract: A medical instrument comprises a shaft which is connected at the proximal end to a handle, and it also comprises an insert which is guided along the shaft and which is connected at the proximal end to a movable grip part of the handle. At its distal end, the insert has a tool which can be actuated by pivoting of the grip part. A lock is also provided which can be brought into locking engagement with the movable grip part. To cancel the lock function, a detent is provided which can be brought between lock and movable grip part, such that the lock function can be cancelled by the detent.

Abstract: A shaft for a micro-invasive surgical instrument includes a shaft tube with a proximal end portion and a distal end portion, a coupling device for detachable mechanical coupling of the shaft with a tool, and a rotation bearing, which mechanically connects the coupling device with the distal end portion of the shaft tube. The rotation bearing is configured in order to allow rotation of the coupling device with respect to the shaft tube about the longitudinal axis of the shaft on the distal end portion of the shaft.