Transverse intracavity stapler with compact structure

Abstract

The invention provides a transverse intracavity stapler with a compact structure. The transverse intracavity stapler comprises an end actuator, a connecting outer pipe and a driving component at leastpart of which is arranged in the connecting outer pipe, wherein the end actuator comprises a staple cartridge shell and a positioning staple; the driving component comprises a driving shell used fordriving the staple cartridge shell; the staple cartridge shell is arranged in a staple cartridge accommodating cavity of the driving shell; an opening is formed in the staple cartridge accommodating cavity, and the staple cartridge shell can be axially arranged along the center shaft of the connecting outer pipe; one end of the positioning staple is arranged in the staple cartridge accommodatingcavity; a positioning staple hole which can be penetrated by the positioning staple, and the other end of the positioning staple is connected with a positioning staple driving mechanism. The structuremounting mode of an existing transverse stapler is improved, the assembly is compact, the radial size of the transverse stapler is effectively reduced, and the transverse stapler can enter an endoscopic surgical channel with a small inner diameter, so that the transverse intracavity stapler can be applied to intracavity surgeries.

Description

technical field [0001] The invention relates to a medical device, in particular to a transverse intracavity stapler with a compact structure. Background technique [0002] The transverse cutting anastomosis / stapler is mainly used for the creation of anastomotic stoma and the closure of the stump or incision in the digestive tract reconstruction and organ resection surgery where it is difficult to expose the surgical field. In the horizontal cutting stapler in the prior art, the positioning pin is set on the staple cartridge, and the longitudinal installation perpendicular to the central axis of the stapler needs to be verified along the staple cartridge during installation, and the installation position of the staple cartridge needs to be additionally provided with a transmission mechanism for connecting with the staple cartridge. The locating needles are docked and matched so that the driving mechanism can drive the locating needles. For example, application number 20151035...

AI Technical Summary

Problems solved by technology

[0003] Transversal cutting anastomosis / stapler is often used in open surgery, open surgical field of view is better, but there are disadvantages such as large wounds and slow recovery

The traditional method of laparoscopic surgery is to make three small incisions on the patient's body, each inserting a pipeline-shaped working channel, and all subsequent operations are performed through these three channels; and then the special lengthened surgical instruments are used to complete the surgery under the monitor of the TV, which is the same as open surgery. Compared with open surgery, it has a greater advantage in achieving the same surgical effect. However, according to the limitations of the structure and installation method in the prior art, the staple cartridge provided with positioning pins has a large longitudinal gap. size, and the staple cartridge needs an additional fixing mechanism to prevent it from falling off in order to be stably installed on the end effector, so it is not suitable for small-sized laparoscopic surgery channels

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