Abstract: A bone punch includes a base body with a guide shaft (3), a handle (4) and a punching slide (8) supported adjustably along an upper guiding surface (13) of the guide shaft (3). An actuating lever (6) with an adjusting lever (65) interacts with the punching slide (8) for adjustment against a spring action of a restoring spring (46). In a distal end area (10), the punching slide (8) has a securing element (45), which extends between two side walls (25, 26) of the punching slide (8) on the guide shaft (3). The securing element (45) has two laterally protruding positive-locking elements (51, 52). Each side wall (25, 26) is provided with an inner, distally limited longitudinal groove (40, 41) running in the longitudinal direction (9) of the guide shaft (5). Each positive-locking element (51, 52) is longitudinally displaceably inserted into a respective one of the grooves (40, 41).

Abstract: A bone punch includes a base body with a guide shaft (3), a handle (4) and a punching slide (8) supported adjustably along an upper guiding surface (13) of the guide shaft (3). An actuating lever (6) with an adjusting lever (65) interacts with the punching slide (8) for adjustment against a spring action of a restoring spring (46). In a distal end area (10), the punching slide (8) has a securing element (45), which extends between two side walls (25, 26) of the punching slide (8) on the guide shaft (3). The securing element (45) has two laterally protruding positive-locking elements (51, 52). Each side wall (25, 26) is provided with an inner, distally limited longitudinal groove (40, 41) running in the longitudinal direction (9) of the guide shaft (5). Each positive-locking element (51, 52) is longitudinally displaceably inserted into a respective one of the grooves (40, 41).

Abstract: A surgical instrument is provided with a gripping part arranged in a stationary manner on a tubular guide housing having a guide hole and with an actuating lever, which is pivotably mounted thereon and which is in functional connection via a lever arm with a plunger. The plunger is axially shiftable in a mounting housing, via which a tool can be actuated. The plunger has, in its end area located adjacent to the lever arm, a circumferential, radially expanded pushbutton, via which the plunger is guided axially adjustably against the spring force of an axial compression spring in the guide hole of the guide housing. The mounting housing is provided with a ring shoulder for axial fixation in the guide hole of the guide housing.

Abstract: A surgical instrument is provided with a gripping part arranged in a stationary manner on a tubular guide housing having a guide hole and with an actuating lever, which is pivotably mounted thereon and which is in functional connection via a lever arm with a plunger. The plunger is axially shiftable in a mounting housing, via which a tool can be actuated. The plunger has, in its end area located adjacent to the lever arm, a circumferential, radially expanded pushbutton, via which the plunger is guided axially adjustably against the spring force of an axial compression spring in the guide hole of the guide housing. The mounting housing is provided with a ring shoulder for axial fixation in the guide hole of the guide housing. To guarantee secure fixation of the mounting housing in the guide housing along with simple handling and low manufacturing costs, a radially inwardly projecting stop of a pin-like design is provided in the guide hole of the guide housing.

Abstract: A surgical punching instrument is provided with a fixed handle (14) attached to a punching bar (2) and with an actuating lever (16), which is mounted thereon in a pivotingly movable manner and which is connected via a short lever arm (17) to a punching slide (1), which is in turn under the action of a restoring spring (23). The punching slide (1) lies with its flat sliding surface (3) on a flat guiding surface (4) of the punching bar (2) over its entire length and is guided at same in an axially movable manner by means of guide elements (5 through 8), which have a T-shaped profile, engage one another in a positive-locking manner and are detachable by longitudinal displacement.

Abstract: A surgical punching instrument is provided with a fixed handle (14) attached to a punching bar (2) and with an actuating lever (16), which is mounted thereon in a pivotingly movable manner and which is connected via a short lever arm (17) to a punching slide (1), which is in turn under the action of a restoring spring (23). The punching slide (1) lies with its flat sliding surface (3) on a flat guiding surface (4) of the punching bar (2) over its entire length and is guided at same in an axially movable manner by means of guide elements (5 through 8), which have a T-shaped profile, engage one another in a positive-locking manner and are detachable by longitudinal displacement.

Abstract: A surgical instrument (1) with a grip part (2), which is provided with a working part (26), which has a tool part in an end area and is provided with a slide (57). The slide (57) is adjustable in relation to the working part (26). The adjusting movement (double arrow 18) brings about a working movement of the tool part. The adjusting movement (double arrow 18) can be brought about by an actuating drive (6, 7, 8, 9, 10), which can be activated by an actuating element (38), which can be actuated manually. To attain the strongest possible actuating forces, a control means (35) is provided, which can be controlled via the actuating element (38) and by which the actuating drive (6, 7, 8, 9, 10) arranged in the area of the grip part (2) can be actuated. The actuating drive (6, 7, 8, 9, 10) now brings about the working movement of the slide (57) depending on the position of the actuating element (38) and is mechanically coupled with the slide (57) via a lever mechanism (10).