Medical Instrument Toggle Mechanism for Simultaneous Clip Firing
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Solution Overview
Problem
Current surgical clip applicators require complex and time-consuming operations due to the need to separately control the firing rod, clamp, and clip-cartridge assembly, which prolongs surgical time and reduces efficiency.
Innovation Solution
The medical apparatus allows simultaneous movement and control of the firing rod, clamp, and clip-cartridge assembly through a toggle piece and positioning block mechanism, enabling streamlined operation and reducing the complexity of individual component control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the firing rod, clamp, and clip-cartridge assembly are operated separately and individually, then each component can be precisely controlled, but the operation process becomes complicated and time-consuming
Solution Approach 1:
The patent combines the control of the firing rod, clamp, and clip-cartridge assembly into a single integrated operation. The firing rod is designed to simultaneously drive the clamp closing mechanism and the clip-feeding mechanism, allowing all three components to be operated together through one action rather than separately, thus simplifying the operation process while maintaining functional precision
2Productivity
If the firing rod, clamp, and clip-cartridge assembly are operated separately, then each component can be precisely controlled, but the operation time is prolonged
Solution Approach 1:
The patent implements continuous useful action by designing the firing rod to continuously drive both the clamp closing mechanism and the clip-feeding mechanism simultaneously during a single operation cycle. This eliminates idle time between separate operations and ensures that all components are coordinated and executed in one continuous motion, thereby reducing operation time and improving productivity
3Reliability
If a traditional clip applicator with separate control mechanisms is used, then reliable hemostasis can be achieved, but the structure becomes complex and operation becomes time-consuming
Solution Approach 1:
The patent merges the previously separate control mechanisms into a unified system where the firing rod simultaneously controls the clamp closing mechanism and the clip-feeding mechanism. This integration maintains the reliability of hemostasis by ensuring coordinated action of all components while simplifying the overall structure and reducing the complexity of multiple independent control systems
Data Source
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AI summary
Provided is a medical instrument, comprising a gripper (3), an operating head (2) and a handle (1), wherein the operating head (2) is connected to the gripper (3) and the handle (1). The operating head (2) comprises a housing (10), a triggering force applicator arranged inside the housing (10), a triggering rod (21), a placement cavity (22) arranged on one side of the triggering rod (21), and a clip cartridge assembly (23) arranged inside the placement cavity (22), wherein the triggering rod (21) is connected to the triggering force applicator and the gripper (3) respectively; and an inner cavity (11) in communication with the placement cavity (22) is formed inside the housing (10), and a positioning block (24) is arranged inside the inner cavity (11). The triggering force applicator comprises a push piece (41) and a movable member (42), wherein the push piece (41) is connected to the triggering rod (21) and the movable member (42), and the positioning block (24) is engaged with the push piece (41); and when the positioning block (24) moves forward, the push piece (41) rotates towards the gripper (3) via a first connecting portion to drive the triggering rod (21) to control the gripper (3) to open, otherwise the gripper (3) is closed. The positioning block (24) is engaged with the push piece (41) to drive the triggering rod (21) to move forward or backward so as to control the gripper (3) to open or close, such that the triggering rod (21), the gripper (3) and the clip cartridge assembly (23) can be operated simultaneously without the need to be operated separately and individually, thereby achieving the aims of simplifying a device, rapid triggering and improving efficiency.