Aortic dissection stent graft

An aortic dissection, stent-type technology, applied in the field of medical devices, can solve problems such as easy to cause complications, and achieve the effects of reducing trauma, shortening the cycle stop time, and avoiding complications

Pending Publication Date: 2017-09-01
吴龙 +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this method of retrograde perfusion of the femoral artery is prone to complications

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  • Aortic dissection stent graft
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Embodiment Construction

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] combine Figure 1-2 The stent-type blood vessel for aortic dissection provided in this embodiment includes a stent 1 , a membrane 2 and an artificial blood vessel 3 . The stent 1 is cylindrical, braided by nickel-titanium alloy wire, light in weight and recoverable in shape. The coating 2 is made of expanded polytetrafluoroethylene, and is pasted on the outside of the cylindrical stent 1 . One end of the artificial blood vessel 3 is connected to the coating 2 attached to the surfa...

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Abstract

The invention provides an aortic dissection stent graft which comprises a metal stent, wherein a tectorial membrane is attached on the external part of the stent, the aortic dissection stent graft further comprises an artificial blood vessel, a branching vessel is arranged on the wall of the artificial blood vessel, one end of the artificial blood vessel is connected with the tectorial membrane attached on the surface of one end of the stent, and is used for perfusing blood during surgery. The tectorial membrane is attached on the external part of the stent to form a tubular shape. One end of the tubular tectorial membrane is connected with the artificial blood vessel which is further connected with the branching vessel. During surgery, the roots of aortic are cut off, and the stent is implanted at cleavage of an endarterium through a catheter. In addition, blood is perfused into the branching vessel, so that the perfused blood is used for being supplied to tissues of a lower body. By adopting the aortic dissection stent graft, the circulatory arrest time is shortened, the incision of femoral artery is not needed, and the surgery wound can be reduced, the surgery time can be shortened, and the complications caused by the blood retrograde perfusion of the femoral artery can also be avoided.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a stent-type blood vessel for aortic dissection. Background technique [0002] Aortic dissection is caused by pathological changes in the aortic vascular structure, rupture of the intima, blood flow into the intima and adventitia, and the formation of a false lumen. For type A aortic dissection, one of the treatment methods in contemporary medicine is the use of total arch replacement + descending aortic implantation of intraoperative stents to eliminate the false lumen and seal the breach in the arterial intima. The surgeon cuts the anterior wall of the aorta and inserts the stent through the catheter into the descending aorta. During the operation, in order to shorten the time of circulatory arrest and ensure sufficient blood in the lower body, it is necessary to perform retrograde perfusion of blood from the femoral artery opening. However, this retrograde perfusion of the fem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/07
CPCA61F2/07A61F2002/065A61F2002/077
Inventor 吴龙董念国张凯伦李华东
Owner 吴龙
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