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: 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.

Abstract: 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.

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 trocar sleeve comprises at its proximal side a housing, from the distal side of which a shaft projects. Further, a sealing of elastic material is provided in order to seal an instrument inserted into the trocar sleeve gas-tight into the proximal direction. The sealing comprises a central opening, the diameter of which is variable. A spreading device is provided which is insertable into the sealing, extending same in doing so, whereby the diameter of the central opening is enlargeable. It is suggested to configure the spreading device as an axially movable sleeve, the ring-shaped front area of which is insertable into the sealing, spreading same in doing so.

Abstract: The invention relates to a suturing set for medical use, comprising a handle piece, a needle, at least partly embodied as a hollow needle and which may be fixed to the handle and a transport device, arranged within the handle, which may be displaced between two end positions for the supply of suturing material to the needle, whereby the transport device comprises a gripping device, by means of which the supplied suturing material may be grasped in one end position of the transport device and then released in the other end position of the transport device. According to the invention, the transport of the suturing material to the needle may be achieved in a simple, secure and material-protective manner, whereby the introduced suturing material, on reaching an end position of the transport device, is gripped in a clamping manner by means of displacing the transport device and is only released again on reaching the other end position of the transport device.

Abstract: A trocar sleeve comprises at its proximal side a housing, from the distal side of which a shaft projects. Further, a sealing of elastic material is provided in order to seal an instrument inserted into the trocar sleeve gas-tight into the proximal direction. The sealing comprises a central opening, the diameter of which is variable. A spreading device is provided which is insertable into the sealing, extending same in doing so, whereby the diameter of the central opening is enlargeable.

Abstract: The invention relates to a medical instrument with a hollow instrument canal (4) that is configured inside a housing (1a) and can be closed by means of at least one valve body (6) and rotated into open position by means of an instrument inserted into the instrument canal. The at least one valve body (6) is configured as a flap consisting of an essentially non-bendable material mounted on the housing (1a) so that it can be rotated by means of an elastic, bendable connecting element (7) 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 (6) of simple construction, which insulates reliably, is distinguished according to the invention in that the connecting element (7) on the one hand is secured on the housing (1a) and on the other hand carries the valve body (6), so that the connecting element (7) can be secured in a ring groove (1b) configured in the housing (1a).