An intracavity transverse stapler with a stable structure

Abstract

The invention provides an intracavitary transverse stitching instrument with a stable structure. The intracavitary transverse stitching instrument comprises an end executor, a connecting outer tube and a driving assembly at least partially arranged in the connecting outer tube. The end executor comprises a nail bin shell, an anvil block, and an anvil block connecting piece; the anvil block connecting piece is connected to one end of the anvil block and is perpendicular to the anvil block; the other end of the anvil block connecting piece is fixedly connected with the connecting outer tube; thedriving assembly comprises a driving shell; the nail bin shell is arranged in a nail bin containing cavity of the driving shell and corresponds to the lower surface of the anvil block; and the driving shell is used for driving the nail bin shell to move towards the anvil block. Compared with a structure formed by splicing plate-shaped parts for transverse cutting in the prior art, the fixing modeof the anvil block and the connecting outer tube is more stable in structure and higher in strength, the anvil block is not prone to breakage in the operation process, and high strength can still bekept after the size of the anvil block is reduced so that operation safety can be guaranteed.

Description

technical field [0001] The invention relates to a medical device, in particular to an intracavity transverse stapler with a stable 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. Transverse cutting stapler in the prior art, such as application number 201720180428.8 discloses a shell cutting stapler, the anvil is installed on the frame, specifically the end effector includes a body, fixed on the front end of the body An anvil block assembly, a staple cartridge assembly that is slidably arranged on the body along the front-rear direction. It also includes a cutting knife that can slide back and forth on the front frame. The front part of the cutting knife is formed with a cutting part located in front of the knife pad, corresponding...

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 greater advantages than open surgery. However, according to the prior art, transverse cutting staplers or staplers often use multiple flat-plate parts to superimpose to form end effectors. And add a complex transmission mechanism to ensure various functions, and its head is flat, and its longitudinal length is obviously greater than its thickness. If it is used for laparoscopic surgery, the end effector is scaled down in order to be able to enter the surgical channel , its flat head is not suitable for matching the surgical channel, nor can it guarantee its structural strength, which is prone to the risk of fracture

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