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Stent-type blood vessel for intracavity treatment of complex abdominal aortic aneurysm

An aortic aneurysm cavity and stent-type technology, which is applied in the field of medical devices, can solve the problems of discounted treatment effect, poor precision of stent blood vessels, complicated procedures, etc., achieve wide versatility, high accuracy and success rate, and improve installation convenience sexual effect

Active Publication Date: 2012-03-21
GENERAL HOSPITAL OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The detection, design, and production of individual patients are not only complicated procedures, but also affected by the precision of the instruments and the proficiency of the operators, the stents produced are often of poor accuracy, which greatly reduces the therapeutic effect.

Method used

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  • Stent-type blood vessel for intracavity treatment of complex abdominal aortic aneurysm
  • Stent-type blood vessel for intracavity treatment of complex abdominal aortic aneurysm
  • Stent-type blood vessel for intracavity treatment of complex abdominal aortic aneurysm

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Embodiment Construction

[0020] The present invention will be further illustrated by the following figures and embodiments.

[0021] The skeleton of each component of the stent-type blood vessel of the present invention is braided with elastic and rigid metal wires, and the metal wires are preferably nickel-titanium shape memory alloy wires with a wire diameter of 0.1 to 1 mm. Dacron artificial blood vessel film (DACRON) is coated on the metal frame.

[0022] Such as figure 1 with figure 2 As shown, the stent-type blood vessel of the present invention is divided into two parts: a main stent and a branch stent. The main body bracket is generally funnel-shaped and is divided into three parts: upper, middle and lower parts. The upper part 1 is a thicker round tube, the lower part 7 is a thinner round tube, and the middle part 6 is a moving part that changes from thick to thin. The main body bracket is provided with a front wall groove 2 and a front wall window 3 in the upper part 1 thereof, and two side w...

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Abstract

The invention discloses a stent-type blood vessel for the intracavity treatment of a complex abdominal aortic aneurysm, which comprises a main body stent and branch stents. The main body stent is funnel-shaped. Two front wall windows are arranged on the front wall of the upper part of the main body stent and two side wall windows are arranged on the side wall of the middle part of the main body stent. Straight tube stent-type blood vessel passages are respectively and upwards arranged on the side wall windows. Each branch stent is circular-tube-shaped and the thickness of the branch stent is adaptive to the diameter of a renal artery.

Description

Technical field [0001] The present invention relates to a medical device implanted in the human body, in particular to a stent-type blood vessel used for intracavitary treatment of complex abdominal aortic aneurysms. Background technique [0002] Abdominal aortic aneurysms often occur near the renal artery. When the distance between the proximal end of the tumor and the renal artery is very small, it is considered a contraindication for conventional equipment to repair the cavity due to insufficient proximal anchoring area. At present, the medical field has developed "windowed stent-type blood vessels" to implement stent-type blood vessel implantation treatment for such patients. That is, the main body stent is implanted in the abdominal aorta, the main body stent is opened, and the branch stent blood vessel is installed in the window. To branch blood vessels. The stent-type blood vessel implanted for endovascular treatment of abdominal aortic aneurysm involves the reconstructi...

Claims

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Application Information

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IPC IPC(8): A61F2/06A61F2/86A61B17/12
Inventor 郭伟马晓辉
Owner GENERAL HOSPITAL OF PLA
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