Foldable anastomat anvil base

Abstract

The invention discloses a foldable anastomat anvil base, and belongs to the field of anastomat anvil bases. The foldable anastomat anvil base comprises an anvil rod and a pair of semicircular anvils which can be spliced into a complete circle; one ends, close to the anvil rod, of the pair of semicircular anvils are both fixedly connected with connecting pieces respectively; an anvil assembly is connected between the anvil rod and the connecting pieces, so that switching of the anvil rod and the semicircular anvils between a vertical state and a horizontal state can be realized through a firstassembly conveniently, and unfolding and closing of the pair of semicircular anvils can be realized through a second assembly conveniently, so that the reduction of the cross section of the device placed in an esophagus is realized effectively, the device can pass through the narrow esophagus conveniently and can return to the working state after reaching the designated position; and in addition,an elastic contraction part is arranged for assisting rapid recovery, and switching from a placing state to the working state is realized by being tightly close to a cut-off rope, so that the foldableanastomat anvil base is very convenient and rapid, the operation difficulty is greatly reduced, and the surgical efficiency is improved.

Description

technical field [0001] The invention relates to the field of anvils for staplers, in particular to a foldable anvil for staplers. Background technique [0002] Intestinal stapler is also called tubular gastrointestinal stapler, which is suitable for end-to-end and end-to-side mechanical anastomosis of digestive system tissues. The anastomotic stoma is formed by cutting excess tissue at the inner cutting edge of the staple with a knife. The caliber is consistent, the mucosa is aligned neatly, the fastness of the anastomotic stoma is reliable, the hemostatic effect and blood supply are good, and the anastomosis is completed once, and the operation is convenient. Therefore, use The curved tube stapler / tube stapler can not only shorten the operation time, reduce the blood loss, lighten the operation trauma, but also improve the operation quality and reduce complications. [0003] However, with the gradual development of laparoscopic minimally invasive techniques in gastrointest...

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Problems solved by technology

[0003] However, with the gradual development of laparoscopic minimally invasive techniques in gastrointestinal surgery, it is difficult to place stapler anvils under laparoscopy, especially for high-level cardiac cancers, which require higher positions to place staple anvils.

The diameter of the existing stapler anvil needs to be sufficient to prevent anastomotic stenosis. During the operation, it is usually necessary to install the stapler anvil on a 90cm long PVC delivery catheter and fix it with the catheter through a fixing wire , and then inserted from the patient's mouth through the esophagus, guided by the delivery tube through the esophagus to the anastomotic end, but because the patient's esophagus has three stenosis, it is easy to cause damage to the patient's esophagus when the nail anvil is placed directly, so in the prior art, the nail The anvil is put in obliquely to reduce the damage to the patient, but the nail anvil is round, and its diameter will not change when it is placed obliquely. The smaller the diameter, the better, and it is also necessary to ensure that the anvil can quickly return to the working state after being put in, and the operation during recovery should also be simple

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