tcpc bracket

Abstract

The invention discloses a TCPC (total cavopulmonary connection) stent. The TCPC stent comprises an artificial blood vessel, a blocking stent and a covered stent. The blocking stent and the covered stent are made of memory alloy. A flow guide hole is communicated with the wall of the artificial blood vessel. The blocking stent is in the shape of a tube with openings at two ends, and is provided with a flow blocking film internally. The flow blocking film is used for sealing the blocking stent. The blocking stent can be embedded in the artificial blood vessel. The coated stent is in the shape of a tube with openings at two ends in a natural state, and the outer diameter of the coated stent is larger than or equal to the inner diameter of the artificial blood vessel in that state. After being compressed, the coated stent can be paced in the artificial blood vessel and can be penetratingly arranged in the blocking stent. When the coated stent swells to recover to the natural state, the outer wall of the coated stent can be attached to the partial inner wall of the artificial blood vessel and the inner wall of the blocking stent tightly so as to seal the flow guide hole and make the blocking stent through. By the TCPC stent, frequency of conventional staged operations in surgery departments can be reduced, and surgical risk and complication occurrence rate both caused by multiple times of thoracotomies can be lowered.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a TCPC bracket. Background technique [0002] Hypoxic venous blood enters the systemic circulation in patients with complex congenital heart disease such as single ventricle, tricuspid atresia, pulmonary atresia, and double-entrance ventricle, resulting in decreased arterial oxygen saturation, and patients manifest hypoxia and cyanosis. In order to correct the patient's hypoxia and restore normal blood flow, multiple palliative operations are usually performed to establish independent pulmonary and systemic circulation systems. For example: Bla lock operation / pulmonary artery constriction, partial cavopulmonary anastomosis (Glenn operation), total cavopulmonary anastomosis (TCPC operation), etc. However, each surgical procedure has a certain complication rate, especially for high-risk patients who need multiple staged corrections of cardiovascular malformations. Although the ...

AI Technical Summary

Problems solved by technology

The number of staged operations in traditional surgery is large, and the surgical risk and complication rate caused by multiple thoracotomies are high; according to literature data, the operative mortality rate increases gradually with the number of reoperations (the mortality rate of the second operation is as high as 15%) , Mortality rate as high as 37% after three operations)

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