Abstract: A device is configured to provide a large visible area and work area in the body of a patient for access to the interior of a body. The device has at least one outer part having an outer tube. An inner tube passes into the outer tube through this outer tube having at an outer tube distal end an expanding part which is expandable beyond the outer diameter of the outer tube.

Abstract: An automatic detection of surgical instruments with respect to a type and a location thereof is provided with a detection system, which includes at least two surgical instruments, which each include at least one cavity extending along a longitudinal axis of the instrument and a proximal entry region to the cavity. An angle of the proximal entry region in relation to the longitudinal extension of the cavity is different in the two instruments. A sensor unit includes two electromagnetic sensors and is insertable into the cavity. One of the sensors extends axially in the cavity, and the other sensor is arranged in the entry region. A field generator generates an electromagnetic field. An analysis unit analyzes signals transmitted by the sensors to the analysis unit in accordance with the location thereof in the field of the field generator.

Abstract: a medical fastening device for an electromagnetic sensor with a clamping element and with a sensor mount and to a medical device with such a fastening device, with an electromagnetic sensor and with a medical instrument. The clamping element has a counterpiece and a pressing piece movable relative to the clamping element, wherein the counterpiece has a lateral opening, which frees a free mounting area, which is itself at least partially enclosed by the counterpiece in a frame-like manner. The counterpiece has a depression, which points towards the mounting area and is arranged opposite the pressing piece, wherein the counterpiece is provided with an opening arranged opposite the depression. The pressing piece is movable in the opening in the direction of the depression of the counterpiece.

Abstract: An automatic detection of surgical instruments with respect to a type and a location thereof is provided with a detection system, which includes at least two surgical instruments, which each include at least one cavity extending along a longitudinal axis of the instrument and a proximal entry region to the cavity. An angle of the proximal entry region in relation to the longitudinal extension of the cavity is different in the two instruments. A sensor unit includes two electromagnetic sensors and is insertable into the cavity. One of the sensors extends axially in the cavity, and the other sensor is arranged in the entry region. A field generator generates an electromagnetic field. An analysis unit analyzes signals transmitted by the sensors to the analysis unit in accordance with the location thereof in the field of the field generator.

Abstract: In particular for automatically determining the position of a Jamshidi needle, the invention provides a surgical needle set comprising a hollow needle and an obturator, wherein the obturator has, starting a finite distance from its distal tip, a hollow space extending longitudinally in a proximal direction, wherein at least one proximal lateral outlet of the hollow space is provided within a handle part of the obturator, and wherein the hollow space is in connection with a passage of an adapter part of an adapter, which passage extends at a finite angle to the longitudinal extent of the hollow space.

Abstract: A medical device includes a guide unit having a guide tube with a longitudinal axis, a proximal first coupling part fixedly connected to the guide tube, and a distal pivoting head with a cylindrical surface. An actuating tube is axially movable in the guide tube and is connected to the pivoting head. The actuating tube causes a pivoting movement of the pivoting head via a proximal operating element. In the device, in order to orient a distal guide element for a rotatable surgical tool more precisely and thus angularly orient the working head of such a tool, the operating element is pivotable about the longitudinal axis and causes the pivoting movement of the pivoting head by the axial displacement of the actuating tube.

Abstract: An automatic detection of surgical instruments with respect to a type and a location thereof is provided with a detection system, which includes at least two surgical instruments, which each include at least one cavity extending along a longitudinal axis of the instrument and a proximal entry region to the cavity. An angle of the proximal entry region in relation to the longitudinal extension of the cavity is different in the two instruments. A sensor unit includes two electromagnetic sensors and is insertable into the cavity. One of the sensors extends axially in the cavity, and the other sensor is arranged in the entry region. A field generator generates an electromagnetic field. An analysis unit analyzes signals transmitted by the sensors to the analysis unit in accordance with the location thereof in the field of the field generator.

Abstract: a medical fastening device for an electromagnetic sensor with a clamping element and with a sensor mount and to a medical device with such a fastening device, with an electromagnetic sensor and with a medical instrument. The clamping element has a counterpiece and a pressing piece movable relative to the clamping element, wherein the counterpiece has a lateral opening, which frees a free mounting area, which is itself at least partially enclosed by the counterpiece in a frame-like manner. The counterpiece has a depression, which points towards the mounting area and is arranged opposite the pressing piece, wherein the counterpiece is provided with an opening arranged opposite the depression. The pressing piece is movable in the opening in the direction of the depression of the counterpiece.

Abstract: A medical device includes a guide unit having a guide tube with a longitudinal axis, a proximal first coupling part fixedly connected to the guide tube, and a distal pivoting head with a cylindrical surface. An actuating tube is axially movable in the guide tube and is connected to the pivoting head. The actuating tube causes a pivoting movement of the pivoting head via a proximal operating element. In the device, in order to orient a distal guide element for a rotatable surgical tool more precisely and thus angularly orient the working head of such a tool, the operating element is pivotable about the longitudinal axis and causes the pivoting movement of the pivoting head by the axial displacement of the actuating tube.

Abstract: A device is configured to provide a large visible area and work area in the body of a patient for access to the interior of a body. The device has at least one outer part having an outer tube. An inner tube passes into the outer tube through this outer tube having at an outer tube distal end an expanding part which is expandable beyond the outer diameter of the outer tube.