SURGICAL INSTRUMENTS WITH ENGINE DRIVE WITH POSSIBILITY OF HINGE ROTATION Russian patent published in 2019 - IPC A61B17/68 A61B17/72 

FIELD: medicine.

SUBSTANCE: group of inventions relates to surgical instruments, namely to surgical dissecting and stitching brackets with power tools and cassettes with brackets used in them, which are made with the possibility of cutting and stitching tissue with brackets. Surgical instrument includes an elongated stem assembly, a surgical end effector, a hinge system, a trigger element assembly, a motor, a drive connector assembly, a hinge rotation drive mechanism, a gear design, an output shaft assembly and a coupling gear assembly. Elongated stem assembly defines the longitudinal axis of the tool. Surgical end effector is functionally connected to the node of the elongated stem for selective hinge rotation relative to it. Surgical end effector is configured to perform at least one surgical intervention in response to the starting movements applied to it. Hinge system is functionally connected to an elongated stem assembly in order to apply hinge movements to the surgical end effector. Trigger element assembly is functionally connected to the elongated stem assembly in order to apply trigger movements to the surgical end effector. Engine is designed to generate rotational starting movements. Drive connector assembly is connected to the engine and the hinge system so that if the drive connector assembly is in the first configuration, motor operation causes the starting movements to be applied to the hinge system, causing the hinge rotation of the surgical end effector relative to the longitudinal axis of the instrument, and if the drive connector assembly is in the second configuration, motor operation will cause the starting movements to be applied to the trigger element assembly, causing the trigger element assembly to apply at least one of the trigger movements to the surgical end effector. Hinge system contains a thrust knot, supported by an elongated trunk unit and configured to be operatively connected to a hinge joint, facilitating the hinge rotation of the surgical end effector relative to the longitudinal axis of the instrument. Hinge drive mechanism is connected to the drive connector assembly and the hinge rotation thrust unit to apply the starting movement of the hinge rotation to the hinge rotation thrust unit. Engine is functionally connected to a gear unit comprising a gearbox housing connected to the engine section. Design of gears is functionally fixed inside the gearbox housing and is connected to the motor shaft and the hinge rotation thrust unit. Output shaft unit is functionally connected with the gear design and the starting element assembly. Hinge system further comprises a drive shaft of the hinge rotation, which is functionally connected with the drive mechanism of the hinge rotation and the design of gears. Design of gears contains a structure of planetary gears, functionally supported by the gearbox housing and connected to the motor shaft and the output shaft unit. Node of the connecting gears functionally connected with the design of the planetary gears and the drive gear of the hinge rotation on the drive shaft of the hinge rotation. In the second embodiment, the surgical instrument comprises a handle, an elongated stem assembly, a loading unit, a hinge system, a trigger element assembly, a motor and a drive connector assembly. Loading unit is functionally connected with an elongated stem and is made with the possibility of cutting and stitching tissue with brackets in response to the starting movements applied to it. Loading unit is made with the possibility of selective hinge rotation relative to the longitudinal axis of the tool around the hinge joint. Hinge system contains a hinge rotation thrust unit, the drive shaft of the hinge rotation. Trigger element assembly is functionally connected to the loading unit to apply trigger movements to it. Drive connector assembly interacts with the engine and the hinge rotation thrust unit so that if the drive connector assembly is in the first configuration, motor operation will cause the starting movements to be applied to the hinge system, causing the hinge rotation of the loading unit relative to the longitudinal axis of the tool, and if the drive connector assembly is in the second configuration, motor operation will cause the starting movements to be applied to the trigger element assembly, causing the trigger element assembly to apply at least one of the triggering movements to the loading unit. Engine is functionally connected to the gear assembly secured in the handle. Gear assembly comprises a gearbox housing associated with an engine section, a gear design that is functionally fixed inside the gearbox housing and interacts with the engine barrel and the hinge rotation drive mechanism, and a block of the output shaft, which is functionally connected with the design of the gears and the node of the starting element. Hinge system further comprises a drive shaft of the hinge rotation, which is functionally connected with the drive mechanism of the hinge rotation and the design of gears. In the third embodiment, the surgical instrument contains elongated stem assembly, and surgical end effector, hinge system, trigger element assembly, engine, means for selectively applying the output motion from the engine to each of the hinge system and the starting element assembly, means for selectively applying the output motion from the engine to each of the hinge system and the starting element assembly. Surgical end effector contains a loading unit comprising a holder, functionally supporting a cassette with surgical brackets, and configured to selectively hinge rotation relative to the longitudinal axis of the instrument by means of a hinge joint, the stop is fixed to move relative to the drive holder, and a drive element adapted to move axially through the holder in response to starting movements. Means for selectively applying the output motion applies the output motion from the engine to the hinge system if the support and holder are in an open configuration, and applies output motion from the engine to the starting element assembly if the support and holder are in a closed configuration.

EFFECT: group of inventions provides relief of the hinge rotation of the end effector relative to the section of the elongated stem.

10 cl, 186 dwg