Direction-changeable clamp and endoscope stapler comprising same

Abstract

The invention discloses a direction-changeable clamp. The clamp comprises a clamping part, a first fixing seat and a second fixing seat, wherein the clamping part comprises a horizontal fixing rod anda back push rod and moving teeth arranged at the upper part and the lower part of the horizontal fixing rod, two ends of the horizontal fixing rod are rotationally fixed between the first fixing seatand the second fixing seat, two elastic pieces which are symmetrically arranged on two sides of the clamping part are also arranged between the first fixing seat and the second fixing seat, elastic ends of the two elastic pieces make contact with the back push rod, when the moving teeth changes direction to swing, the back push rod realizes resetting and clamping actions of the moving teeth underthe elastic action of elastic pieces on two sides of the back push rod. The invention further discloses an endoscope stapler comprising the clamp. The clamp is arranged above an initial clamping groove of a push rack, and an elastic touch ball is arranged at the tail end of the push rack. By improvement of the clamp, the clamping part of the clamp can realize the effect of reducing percussion force and resetting force of an instrument with change of moving direction of the push rack. The elastic touch ball is also arranged to increase resetting opening angles, so that resetting is more precise and reliable.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a reversible retainer and an endoscopic stapler including the retainer. Background technique [0002] In surgical operations, medical laparoscopic cutting and stapler has become an indispensable auxiliary medical device in the process of suturing human tissue. With the development of medicine and product research and development, more and more multifunctional staple products are used in clinical practice. One of the few tools. The application of laparoscopic cutting and stapler has many advantages such as less blood loss during operation, shorter operation time, reduction of manual operation errors, avoidance of infection, and quick recovery of postoperative function. [0003] At present, most of the existing endoscopic staplers have a large reset force when the components are bent and use, and the hand feeling is poor, which increases the physical burden of the doc...

AI Technical Summary

Problems solved by technology

And because the shifting teeth of the retaining member 3 in this structure can only incline in one direction, the direction of the shifting teeth cannot be changed, and the moving direction of the advancing rack 1 changes during reset, and the inclined direction of the shifting teeth of the retaining member 3 remains unchanged. , then the reset force between the push rack 1 and the locking part 3 will increase, which will make the instrument feel bad when using it, increase the operation time, and bring burdens to both doctors and patients

[0004] It can be seen that the above-mentioned existing endoscopic stapler obviously still has inconvenience and defects in structure, method and use, and needs to be further improved urgently.

Images