Cutter stapler for surgery

Abstract

The invention relates to a cutter stapler for surgery. The cutter stapler comprises a pin holder (2), an assembly base (3), an osculating assembly (5), a firing gear (6) and an occlusion device for operating the pin holder (2), wherein the osculating assembly (5) is installed on the assembly base (3), the head part and the middle part of the assembly base (3) are respectively provided with a positioning slot (3-1), and positioning pins (2-1) matched with two positioning slots (3-1) are correspondingly arranged on the pin holder (2). When the cutter stapler is used for osculating thick tissue,a pin pushing part and the osculating assembly can be accurately positioned, the rigidity of the stapler is improved, and the uniformity of front and back inosculation heights and the forming qualityof osculating pins can be ensured.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a cutting stapler for surgery. Background technique [0002] Cutting stapler is a medical device often used in surgical operations on physiological tissues such as the digestive tract, but when performing transverse anastomotic resection of gastric tissue, the existing cutting stapler (see figure 1 ) has the following disadvantages: [0003] 1) During surgery, for thicker gastric tissue, when the tissue is closed and compressed, the tissue has a greater reaction force against the instrument. Since the front end of the instrument is designed as a cantilever, the rigidity of the instrument is poor, and the anvil will be warped and deformed to make the front end anastomose The height H becomes larger, and at the same time, it will also shift left and right, resulting in poorly formed staples, unable to effectively anastomose tissues, affecting the quality of the operation, and a...

AI Technical Summary

Problems solved by technology

[0003] 1) During surgery, for thicker gastric tissue, when the tissue is closed and compressed, the tissue has a greater reaction force against the instrument. Since the front end of the instrument is designed as a cantilever, the rigidity of the instrument is poor, and the anvil will be warped and deformed to make the front end anastomose The height H becomes larger, and at the same time, it will also shift left and right, resulting in poorly formed staples, unable to effectively anastomose the tissue, affecting the quality of the operation, and affecting the safety of the operation

[0004] 2) In addition, due to individual or tissue differences, the anastomosis height is different for different tissues. Once the instrument is selected, the closing height of the existing technology cannot be adjusted, so that in clinical operations, it is possible to crush the tissue or the anastomosis height Too large, affecting the quality of surgery

[0005] 3) In addition, for instruments with an anastomotic length of more than 80mm, due to the long firing stroke, when the doctor uses manual firing, if the firing resistance is large, the firing process will be difficult, and even the operation will fail.

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