摘要:
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.
摘要:
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.
摘要:
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 surrounding the distal end of the trepan is pressed against a peripheral step formed on the sleeve of the trepan by a clamping element in order to fix it to the sleeve of the trepan. The clamping element is displaced by rotation of at least one part of the clamping element about a longitudinal axis of the sleeve of the trepan in a longitudinal direction in relation to the said sleeve.
摘要:
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).
摘要:
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.
摘要:
A coupling assembly for connecting a handle to an instrument extending along a longitudinal axis has a coupler, which releasably receives the handle and has an outer sleeve and a snap-in sleeve formed with a snap-in element. The handle has a recess receiving the snap-in element which is guided along a conical recess formed in the outer sleeve to move to a locking position wherein the handle and the coupler are displaceably fixed relative each other. The outer sleeve is rotatable about the longitudinal axis and its recess has a periphery formed with an inner surface enabling the snap-in element to move radially from the locking position during rotation so as the handle can be axially withdrawn from the coupler.
摘要:
A device is used for inserting at least one anchor piece into a hollow space of a living being, in order to fix a wall of the hollow space temporarily to a wall of the body by means of the at least one anchor piece. It is proposed that the device has two shaft-like elements which are axially movable relative to one another and by which the at least one anchor piece is held captive at its axially spaced apart opposite ends, and moreover has an actuating mechanism via which the at least one element can be moved in such a way that the anchor piece held by it is released.
摘要:
The invention relates to a valve device for medical instruments, in particular trocars, having a valve body configured as a flap for opening and closing an instrument and/or flow channel, which is positioned rotatably on a rotation axle positioned in a housing. To create a valve device, which combines simple and cost-effective structure with good cleaning properties, it is proposed with the invention that the rotation axle is configured in several components, such that the individual components of the rotation axle can be connected to one another by spiral-shaped guide tracks.
摘要:
A medical instrument system for creating a surgical operating space in the human or animal body by minimally invasive way in operations on the jaw comprises a shaft, which can be introduced through an incision in the cheek, and a plate-shaped flat element which can be introduced through the mouth, a connection mechanism being provided at a distal end of the shaft and on the plate-shaped element and being designed such that the plate-shaped element can be secured on the shaft.
摘要:
The invention relates to a holding and resting device for medical instruments having essentially cylindrical instrument bodies, in particular endoscopic instruments, with a base body that can be secured for instance to an operating table and an instrument input to be inserted into the base body and in which the instrument body can be secured by clamping. To create a holding and resting device for medical instruments having essentially cylindrical instrument bodies, which is of simple construction and can be activated quickly and safely, it is proposed with the invention that the instrument input includes a ring-shaped tension casing with at least two holder arms as well as a tension nut that works together with the tension casing.