Stapler handle device and stapler with insurance mechanism

Abstract

The present application is a stapler handle device with a safety mechanism, the driving handle includes a handle driving part, the safety unlocking block can move between a locking position and an unlocking position, and the handle limiter can move between a blocking position and a disengaging position; The contact part of the limiter of the handle limiter is in contact with the safety unlocking block. When the safety unlocking block is in the locked position, the limiter of the limiter is set on one side of the handle driving part to prevent the handle driving part from moving to the far end; the safety unlocking The movement of the block from the locked position to the unlocked position can drive the handle limiter from the blocking position to the disengagement position, and the handle driving part can not be blocked by the handle limiter to move to the distal end; when the handle drive part moves to the distal end, the safety is unlocked The block is driven from the unlocked position to the locked position. In the present application, through the linkage and cooperation of the driving handle, the handle limiter, and the safety unlocking block, the secondary firing caused by the operator's misoperation can be prevented, making the operation process safer and more reliable.

Description

technical field [0001] The invention relates to a medical device, in particular to a stapler handle device and a stapler with a safety mechanism. Background technique [0002] Endoluminal staplers may generally include two elongated jaw members for grasping or clamping tissue, respectively. In some surgical staplers, one of the jaw members has a staple magazine loaded with a plurality of staples arranged in at least two horizontal rows, and the other jaw member has an anvil, which When the staple cartridge is pushed out, the anvil defines a surface for forming the staple legs. The stapling operation is accomplished by a cam member that, as it travels longitudinally through the staple cartridge, acts on the staple pushers to sequentially eject the staples from the staple cartridge. A blade can be advanced between the rows of staples for longitudinally cutting and / or opening the stapled tissue between the rows of staples. For example, US Patent Publication No. US 6,241,139 ...

AI Technical Summary

Problems solved by technology

[0003] However, the stapler handle fired by multiple motions needs to be provided with a corresponding safety device to prevent unnecessary damage to the patient's tissue due to misoperation, and the mechanism for preventing secondary firing in the prior art is usually set on the stapler's handle. In the end effector, there is no safety mechanism at the handle that is simple in structure and can effectively prevent multiple operation of the handle.

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