A circular stapler head with a foldable anvil and cartridge

Abstract

The present invention relates to an anvil cap (14) providing secure anastomosis in the circular staplers comprising a main body (1), a clamping arm (10) configured on said main body (1), punch section (12) and a punch surface (12.1) corresponding to said punch section (12); characterized in comprising movable inner shaft (3) on which a pulling movement is applied by means of a command wire (7), upper wings (5) which are made to open by means of the joint points (16) of said movable inner shaft (3), lower wings (2) which are made to open when said upper wings (5) apply a pressure on the lower wings (2) after they open and apply a pulling movement, and an anvil cap (14) configured upon the combination of these two-level wings.

Description

technical field [0001] The invention relates to a circular stapler, which is an automatic stapler used in digestive system surgery. [0002] In particular, the present invention relates to a collapsible anvil cap of the umbrella type, in continuation of the digestive system provided by the circular stapler, allowing fast and safe stapling. Background technique [0003] Currently, staplers consist of two parts: a body (handle) and an anvil fixed at the end of said body. Even though said circular staplers are available on the market for fast and safe stapling, their use, especially laparoscopically, is very limited due to several disadvantages. In open surgery and laparoscopic surgery, the disadvantages that limit its use are mainly as follows: [0004] 1. In order to position the anvil in the intestine or gastric cavity to be anastomosed, it is necessary to form an independent and large space on the intestinal wall. [0005] 2. In open surgery and laparoscopic surgery, eve...

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Problems solved by technology

[0005] 2. In open surgery and laparoscopic surgery, it is difficult and time-consuming to close the open end with suture folds, even if positioned at the open end of the intestine and stomach (eg, positioned in the esophagus after gastrectomy)

[0006] 3. In some cases (after esophageal surgery), the anvil needs to be fixed to the end of the catheter to reach the anastomotic line, which results in the transmission of microorganisms in the oral cavity and esophagus to the abdominal cavity, thereby increasing the risk of infection

[0007] The above apps are difficult to use, time consuming, and limited in scope

For example, existing stapler anvils cannot be fixed to the endoscope end for use, making such an application impractical

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