Abstract: A locking device arranged in an actuation unit of a surgical instrument which has a hollow shaft with the actuation unit arranged at a proximal end of the shaft and having a tool at the distal end of the shaft which can be actuated by an instrument insert which can be movably stored axially in the direction of a main instrument axis (A) in the shaft. The locking device has an engagement element and an actuation device with which the engagement element can be transferred from a release position into a locking position. The engagement element can be a locking bolt which longitudinal axis runs perpendicular to the main axis (A) of the instrument and which has an engagement section configured for engagement with the instrument insert at a first end and a guide section. The locking bolt can be moved in two directions of movement by the actuation device.

Abstract: A steering gear for a surgical instrument includes two motorized drives designed to spatially align a wobble plate via the adjustment angle of the two drives, which is designed to control a distal angling mechanism of the surgical instrument. A first of the two drives has a first motor, which drives a drive pinion via a driveshaft, which engages with a lateral toothing of a first toothed rack, driving a first transmission pinion of a first double gear. A second of the two drives has a second motor driving a drive pinion via a driveshaft, which engages with a lateral toothing of a second toothed rack and drives a second transmission pinion of a second double gear wheel. The wobble plate is arranged between the two bevel gear rims, which are facing one another and lie on a common axis.

Abstract: An input unit for operating a medical instrument includes: a hollow shaft extending along a longitudinal axis for receiving steering wires; a tool arranged at the distal end of the shaft and formed along an axis of extent; and a control unit, which is arranged at the proximal end of the shaft, for manipulating the tool by means of the steering wires. The input unit comprises first input means for continuously converting, in a pivotably and/or rotationally true manner and preferably without interruption and/or absolutely, an ergonomically limited user input, in particular a natural user movement of movable first operating means, into an adjustment movement of the tool in a first handling mode, in order to pivot the tool to a limited extent relative to the longitudinal axis and/or rotate it to a limited extent about the axis of extent by means of the control unit.

Abstract: A medical instrument (1) includes a hollow rod (2), at the distal end (3) of which a tool carrier (4) can be secured by a first fastening mechanism (5), and the proximal end (6) of which can be secured to an operating unit (8) by a second fastening mechanism (7). In order to create a medical instrument (1) of which the fastening mechanism (5, 7) for the detachable rod connections is easy to handle during manufacture and assembly while ensuring a secure hold, it is proposed that at least the first fastening mechanism (5) for connecting the tool carrier (4) to the distal end (3) of the rod (2) is configured as a mechanical latching connection having at least one resilient element.

Abstract: A steering mechanism for a surgical instrument having a shaft. The steering mechanism is disposed on the shaft and the shaft includes a bending mechanism. The steering mechanism has two motor-driven drives configured to spatially align a swash plate which controls the distal bending mechanism. The first drive has a first drive shaft driven by a first motor and is operatively connected to a first traction pulley of a first drive wheel via a first traction mechanism. The second drive has a second drive shaft driven by a second motor and is operatively connected to a second traction pulley of a second drive wheel via a second traction mechanism. The first and second drive wheels each a bevel wheel rim, wherein the swash plate is located between the two drive wheels, and the bevel wheel rims being positioned facing each other on the axis of rotation.

Abstract: An exemplary embodiment relates to an input unit (10) for operating a medical instrument (12) with a hollow shaft (14) extending along a longitudinal axis (L) for receiving guide wires (20), with a tool (16) arranged on the distal side of the shaft (14), extending along an extension axis (E) and a control unit (18) arranged proximally on the shaft (14) for handling the tool (16) by means of the guide wires (20), comprising first input means (22) for continuous, pivoting and rotation-true, preferably uninterrupted and/or absolute, conversion of an ergonomically limited user input, in particular a natural user movement of movable first operating means, into an adjustment movement of the tool (16) in a first handling mode, in order to pivot the tool (16) by means of the control unit (18) relative to the longitudinal axis (L) in a limited way and/or to rotate about the extension axis (E) in a limited way.

Abstract: An elongated shaft for a medical instrument includes an end section that is angled relative to a longitudinal central axis of the shaft by means of a joint mechanism, and a tool is arranged on the end section which can be angled. Multiple guiding elements are guided through the interior of the shaft in the longitudinal direction and connects a drive to the joint mechanism. The shaft has an outer tube or an inner tube and an elongated profiled guide between the outer tube for guiding the guiding elements. The profiled guide includes a first contact point for contacting the outer tube or the inner tube such that a guide channel or multiple guide channels is/are formed in the longitudinal direction between the outer tube and the profiled guide or between the profiled guide and the inner tube for guiding a guiding element or multiple guiding elements.

Abstract: A steering gear for a surgical instrument includes an angling mechanism which can be controlled by a spatially adjustable wobble plate. The steering gear has a first and a second drive wheel with a respective associated motor, and the second drive wheel is arranged offset by 180° relative to the first drive wheel on an axis of rotation in common with the first drive wheel and perpendicular to the longitudinal axis. The wobble plate is mounted between the first drive wheel and the second drive wheel in a steering ring. A retaining bracket rotatably about the common axis of rotation of the drive wheels, wherein the steering ring is mounted in the retaining bracket an rotatable about the axis of rotation of the third gear wheel, such that the engagement between the third gear wheel and the drive wheels is secured.

Abstract: A steering gear for a surgical instrument having a shaft and an angling mechanism at the distal end of the shaft, includes two motorised drives and is designed to spatially adjust a wobble plate via the adjustment angle of the two drives. The two drives each have a drive wheel driven designed as a double wheel with a bevel wheel rim and a drive rim. The wobble plate is arranged between the two drive wheels, which have a common axis of rotation, and the drive rims of both double wheels are operatively connected to a respective pinion. The pinions can be driven by the respective motor via a respective driveshaft, wherein the two drive axes run parallel to one another and parallel to the common axis of rotation of the two drive wheels. The invention also relates to a surgical instrument comprising a steering gear of this type.

Abstract: A surgical instrument includes an actuation device. The surgical instrument includes a hollow shaft having a tool at the distal end of the shaft. The tool includes two jaw parts, and the actuation device is operatively connected to an actuation rod mounted in the shaft so as to and move and close the jaw parts. The actuation device includes a cam wheel that is operatively connected to the actuation rod by a connection portion. The actuation device includes a bearing device that provides forced guidance of a cam-follower pin along a longitudinal axis, such that, when the cam wheel is rotated about a rotational axis of the cam wheel, a linear movement of the cam-follower pin, guided in the cam track, and the actuation rod operatively connected thereto is provided along the longitudinal axis.

Abstract: This invention pertains to a force transmission element with combined mechanical support and electrical isolation, as well as a surgical instrument comprising the force transmission element and a method for manufacturing the force transmission element. A rod of the force transmission element has at least one recess and insulation extends at least along the recess. A sleeve of the force transmission element has an embossment that extends at least in sections into the recess and which is designed to mesh with a securing element of the surgical instrument.

Abstract: A bearing assembly of a swash plate in a steering gear component of a surgical instrument is disclosed. The swash plate being rotatable about an axis of rotation in a receiving opening of the steering gear component. The swash plate has an outer peripheral surface which provides a peripheral inner bearing surface, and the steering gear component has an inner peripheral surface in the receiving opening, which inner peripheral surface provides a peripheral outer bearing surface. The bearing assembly also comprises a plurality of rolling elements which are peripherally distributed between the peripheral inner bearing surface of the swash plate and the peripheral outer bearing surface of the steering gear component such that an integrated rolling element of the bearing assembly is provided by the swash plate, the steering gear component, and the plurality of rolling elements.

Abstract: One embodiment relates to a medical instrument (1) with a hollow shaft (2), an actuating unit (4) arranged at the proximal end (3) of the shaft (2) and an instrument tip (6) with an instrument (7) arranged at the distal end (5) of the shaft (2), wherein the instrument (7) can be actuated via an actuating element (8) which is mounted in the shaft (2) in an axially displaceable manner, and wherein the actuating element (8) is operatively connected to the actuating unit (4) on the proximal side, and wherein the instrument tip (6) can be pivoted relative to the longitudinal axis (10) of the shaft (2) via a joint mechanism (9). According to one embodiment, the instrument tip (6) can be rotated endlessly, wherein a fixing device is provided on the instrument tip (6) with which the loose end (17, 23) of a sewing material (18, 24) can be fixed on the instrument tip (6).

Abstract: The disclosure relates to a steering mechanism for a surgical instrument. The steering mechanism has two motorized drives and is designed to spatially align a swash plate over the control angle of the two drives, said swash plate being designed to control a distal bending mechanism of the surgical instrument. A first drive of the two drives has a first motor which drives a worm shaft that drives a worm wheel rim of a double gear consisting of a worm wheel rim and a bevel wheel rim), and a second drive of the two drives has a second motor which drives a worm shaft that drives a worm wheel rim of a double gear consisting of a worm wheel rim and a bevel wheel rim. The swash plate is arranged between the two bevel wheel rims, which face each other and lie on a common axis.

Abstract: The invention relates to a medical instrument having an elongated shaft, a movable tool at a distal end of the shaft, a handle with a movable grip part at a proximal end of the shaft, and a force transmission element which can be moved in the longitudinal direction of the instrument and is operatively connected to the movable grip part and to the tool such that an actuation of the movable grip part is converted into a movement of the tool. The instrument has a spring assembly that is arranged on the handle and has at least one leg spring, which has at least one winding and two legs, and a pin, wherein the at least one winding extends about the pin. When the movable grip part is actuated, a force is applied to at least one of the legs of the leg spring, said force reducing the friction between the winding and the pin such that the leg spring can be rotated about the pin and the force transmission element and the tool can be moved.

Abstract: The invention relates to a medical instrument having an elongated shaft, a movable tool at a distal end of the shaft, a handle with a movable grip part at a proximal end of the shaft, and a force transmission element which can be moved in the longitudinal direction of the instrument and is operatively connected to the movable grip part and to the tool such that an actuation of the movable grip part is converted into a movement of the tool. The instrument has a spring assembly that is arranged on the handle and has at least one leg spring, which has at least one winding and two legs, and a pin, wherein the at least one winding extends about the pin. When the movable grip part is actuated, a force is applied to at least one of the legs of the leg spring, said force reducing the friction between the winding and the pin such that the leg spring can be rotated about the pin and the force transmission element and the tool can be moved.

Abstract: An exemplary embodiment provides a locking device (10) which is designed to be arranged in an actuation unit (4) of a surgical instrument (1) which has a hollow shaft (2) with the actuation unit (4) arranged at a proximal end (3) of the shaft (2) and having a tool (7) at the distal end (5) of the shaft (2), which can be actuated by means of an instrument insert (8) which can be movable stored axially in the direction of a main instrument axis (A) in the shaft (2). The locking device (10) has an engagement element and an actuation device with which the engagement element can be transferred from a release position into a locking position. According to an exemplary embodiment, the engagement element is a locking bolt (15) which longitudinal axis (B) runs perpendicular to the main axis (A) of the instrument and which has an engagement section (15a) for engagement with the instrument insert (8) at a first end and a guide section (15b).

Abstract: An exemplary embodiment provides a steering gear (13) for a surgical instrument (1) which has two motorised drives and is designed to spatially align a swash plate (14) via the adjustment angles of the two drives, which is designed to control the distal bending mechanism (9) of the surgical instrument (1). The first drive has a first drive pinion (16) which can be driven by a first motor (17) via a first drive shaft (17a) which defines a first drive axis (C) and which is connected to a first drive wheel rim (19) of a first drive wheel (18) in operative connection. The second drive has a second drive pinion (16?) which can be driven by a second motor (17?) via a second drive shaft (17a?) which defines a second drive axis (C?) and is connected to a second drive wheel rim (19?) of a second drive wheel (18?) in operative connection.

Abstract: One exemplary embodiment relates to an input unit (10) for operating a medical instrument (12) with a hollow shaft (14) extending along a longitudinal axis (L) for receiving guide wires (20), with a tool (16) arranged on the distal side of the shaft (14), extending along an extension axis (E) and a control unit (18) arranged proximally on the shaft (14) for handling the tool (16) by means of the guide wires (20), comprising first input means (22) for continuous, pivoting and rotation-true, preferably uninterrupted and/or absolute, conversion of an ergonomically limited user input, in particular a natural user movement of movable first operating means, into an adjustment movement of the tool (16) in a first handling mode, in order to pivot the tool (16) by means of the control unit (18) relative to the longitudinal axis (L) in a limited way and/or to rotate about the extension axis (E) in a limited way.

Abstract: An exemplary embodiment relates to a bearing assembly (40) for a swash plate (14) in a steering gear component (33), wherein the swash plate (14) is arranged such that it can rotate about an axis of rotation (10) in a radial bearing which is located in a receiving opening (330) of the steering gear component (33). The radial bearing is a sliding bearing (35) and the bearing assembly (40) has at least one axial securing device (36) which is arranged axially adjacent to a first side of the swash plate (14) and engages with the steering gear component (33). Furthermore, a surgical instrument (1) is disclosed that has this bearing assembly (40) of a swash plate (14) in a steering gear component (33).