Quick-connection thoracotomy vascular stent and conveying system

Abstract

The invention discloses a quick-connection thoracotomy vascular stent system. The quick-connection thoracotomy vascular stent system comprises an artificial blood vessel, a laminating membrane stent and a support piece, wherein the laminating membrane stent comprises a stent body and a laminating membrane for covering the outside of the stent body, and the laminating membrane is longer than the stent body; the artificial blood vessel and the laminating membrane for covering the outside of the stent body are integrally woven, and a section of stent-less laminating membrane is arranged between the distal end of the artificial blood vessel and the proximal end of the laminating membrane stent; the support piece comprises a support ring and a tectorial membrane for wrapping the outer layer ofthe support ring; the support ring is located on the outer layer of the stent-less laminating membrane; and the support ring and the distal end of the tectorial membrane are matched on the laminatingmembrane in an anastomosis mode. A conveying system of the thoracotomy vascular stent comprises a conveying rod, a support structure, a conveying handle, a first control component, a second control component, and a fixing band. According to the vascular stent and the conveying system provided by the invention, the anastomosis between the proximal end of the descending aorta and the proximal end ofthe laminating membrane stent placed therein is avoided, and the surgical time is shortened.

Description

technical field [0001] The invention relates to a quick-connect thoracotomy vascular stent and a delivery system, belonging to the technical field of medical devices. Background technique [0002] The treatment of diffuse aortic disease is a difficult point in aortic surgery, especially complex diffuse aortic aneurysm and aortic dissection involving the aortic arch and descending thoracic aorta at the same time, the condition is critical and the mortality rate is high. [0003] The elephant trunk surgery introduced by Borst et al. simplifies the difficulty of staged surgery and has achieved a better therapeutic effect. With the development of aortic surgery, Kato et al. introduced stent technology into elephant trunk surgery on the basis of endovascular interventional treatment of aorta, forming stent elephant trunk surgery. The specific method is as follows: the distal end of the artificial blood vessel is lined with a self-expandable metal stent, and the blood vessel with...

AI Technical Summary

Problems solved by technology

Long operation time and high technical requirements for anastomosis

In addition, long-term circulatory arrest increases the time of cerebral ischemia and causes postoperative complications.

Images