Stapler handle device having insurance mechanism and stapler

Abstract

The invention discloses a stapler handle device having an insurance mechanism. A driving handle includes a handle driving part; an insurance unlocking block can move between a locking position and anunlocking position; a handle limit member can move between a blocking position and a separation position; the limit member contacting part of the handle limit member is in contact cooperation with theinsurance unlocking block, and when the insurance unlocking block is at the locking position, the limit member limit part is arranged on one side of the handle driving part to stop the handle drivingpart to move to the far end; the insurance unlocking block can drive the handle limit member from the blocking position to the separation position when moving from the locking position to the unlocking position, and the handle driving part can move to the far end without being blocked by the handle limit member; and when the handle driving part moves to the far end, the insurance unlocking blockcan be driven to move from the unlocking position to the locking position. Through the linkage and cooperation of the driving handle, the handle limit member and the insurance unlocking block, secondary firing caused by the misoperation of operators can be prevented, so that safer and more reliable surgical procedure can be realized.

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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