Suturing instrument with empty nail chamber protection

Abstract

The invention discloses a suturing instrument with empty nail chamber protection, which comprises a nail anvil, a nail chamber provided with a plurality of suturing nails inside, a center rod for pushing the nail chamber and the suturing nails in the nail chamber, a bracket for connecting the nail anvil and the nail chamber, a nail pushing connecting piece and a triggering handle connected with the center rod, wherein one end of the nail pushing connecting piece is arranged inside the nail chamber and the other end of the nail pushing connecting piece is connected with the center rod, a safety block is arranged on the bracket, a clamping block is movably arranged on the nail pushing connecting piece and is positioned between the nail chamber and the center rod, the safety block buttes against the clamping block and departs from the center rod in the unlocking state of the suturing instrument,, and the clamping block departs from the safety block and the safety block enters the space between the clamping block and the center rod in the locking state of the suturing instrument,. After the safety block is locked, unlocking can be realized by dismounting the nail chamber and taking down the clamping block; and during unlocking, an operator confirms whether the nail chamber contains nails or not, so as to solve the safety problem due to staff negligence.

Description

technical field [0001] The invention relates to a medical device, in particular to a stapler. Background technique [0002] At present, when physiological tissues such as the esophagus, stomach, and intestinal tract are surgically anastomosed, a surgical stapler is often used for anastomosis, and a linear stapler is a relatively important one. In the prior art, with reference to U.S. Patent No. 7,407,076, a linear stapler is described, which is used to close the wounds of the digestive tract and visceral tissues. The operating nail anvil and the nail bin, the pushing device arranged in the bracket and used to push the nail bin and the nails in the nail bin, and the firing handle which is pivotally arranged on the bracket through a rotating shaft and connected to the pushing device. [0003] The use of the instrument is roughly as follows: first, the anvil and the staple cartridge are separated, so that the linear stapler is in the initial state, and the tissue to be sutured...

AI Technical Summary

Problems solved by technology

[0004]If the linear stapler lacks a safety device, there will be nailless firing or false firing during use, which will affect the normal operation, and even cause the operation to fail. Therefore, it is fired The last staple cartridge should be equipped with an empty staple cartridge protection device. In the past, the empty staple cartridge protection of the instrument only locked the firing action, that is, the firing handle was locked so that it could not be operated, and the instrument was not completely locked. Once the firing handle was unlocked , the device is still operable, and there are certain potential safety hazards

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