Circular tube type anastomat

Abstract

The invention provides a circular tube type anastomat which comprises an anastomat body and an anvil component. A far-end of the amastomat body is provided with an annular nail bin and an annular cutter, and a plurality of nail placing holes are formed in the end face of the annular nail bin. The anvil component comprises an annular nail anvil which matches with the annular nail bin, an annular cutter anvil which matches with the annular cutter and a nail anvil shaft which can be movably connected with the anstomat body. The annular cutter anvil is arranged between the nail anvil shaft and the annular nail anvil. When the anastomat body and the anvil component are closed, the annular nail bin matches with the annular nail anvil and the annular cutter anvil to form at least two fixing spaces which are communicated and possess height difference. The circular tube type anastomat can fix cut coincided nails, is in favor of cutting nails, can regard structures which are adjacent to newly-molded coincided nails and structures which are adjacent to cut coincided nails as cushion isolation and reduces drawing of organizations on the nail anvil end face.

Description

technical field [0001] The invention relates to a circular tube stapler, which belongs to the technical field of medical instruments. Background technique [0002] The round tube stapler is a medical device often used in surgical operations on physiological tissues such as the digestive tract. Most of this type of stapler adopts the axial inward binding method. During the anastomosis, the two sections of tissue are restrained, and a circular anastomotic ring is formed inside the tissue. This instrument can make the body hemorrhage generated during the operation be discharged together with the contents. Tissues heal relatively easily. [0003] Conventionally, a circular tubular stapler includes a stapler body and an anvil assembly matched with the body. The stapler body includes an annular staple cartridge and a cutting knife arranged at the distal end. The anvil assembly includes a circular platform-shaped anvil, an anvil cap fixed on the top of the anvil, a knife anvil a...

AI Technical Summary

Problems solved by technology

[0004] Generally, the circular tubular stapler anastomoses physiological tissues such as the digestive tract cut by the stapler, and the stapler will leave staples on the cut tissue, and these staples will cause the anastomosis of the circular tubular stapler to occur. At the same time, the staples left at the intersection of the anastomosis are not only not cut well by the cutter, but also pull the tissue, so that the tissue is torn or the staples cannot be formed normally at the new staple formation.

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