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Support type artificial venous blood vessel with valve

A technology for artificial blood vessels and venous blood vessels, applied in the field of medical devices, can solve the problems of difficult operation, large limitations, and few indications, and achieve the effect of facilitating stent expansion, valve function, and good indications

Inactive Publication Date: 2009-06-03
JIANGSU PROVINCE HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to design a belt with simple structure, wide indications, simple operation, less trauma and less complications to solve the problems of venous disease treatment products with large limitations, few indications, easy recurrence and difficult operation. Valve stent type artificial venous vessel

Method used

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  • Support type artificial venous blood vessel with valve
  • Support type artificial venous blood vessel with valve

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] Such as figure 1 , 2 shown.

[0036] An artificial venous vessel with a valve stent, comprising an artificial blood vessel body 4 (material can be ePTFE) matched with a human vein 5 and a matching artificial valve 1 located in the artificial blood vessel body 4 (a two-valve or three-valve structure can be adopted, Among them, the two-lobe structure is the best, and the material is ePTFE), such as figure 2 shown in . The artificial blood vessel body 4 is overlaid with a compression sheath 2, and the compression sheath 2 can be a Z-shaped stent, or can be a braided Z-shaped grid, a rhombus grid or a triangular grid NiTi One of the alloy metal stents, which is connected to the main body of the artificial blood vessel 4 by sutures 6 . A metal ring 3 (which can be made of nickel-titanium alloy and should have certain elasticity and rigidity) is...

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Abstract

The invention relates to the technical field of medical appliances, in particular to a support type artificial venous blood vessel with valve for treating venous reflux diseases and venous return obstruction diseases. The artificial venous blood vessel comprises artificial valve (1) inside the artificial blood vessel, a metal support (2) attached to the outer wall of the artificial blood vessel to support the artificial blood vessel, a metal ring (3) attached to the metal support to support the valve and an artificial blood vessel (4) beyond the range of the support. The artificial venous blood vessel is produced according to the normal vessel valve structure of the human body, the vessel valve can be opened and closed freely, the supporting strength of the support is proper, and the supporting metal ring can maintain the normal state of the vessel valve. The artificial venous blood vessel has the advantages of reasonable structure, low fabrication cost and good histocompatibility, and can be used for valve repair operation for lower limb deep vein, valve repair operation for upper limb deep vein and main vein return obstruction disease of four limbs (especially occlusive diseases) After the vein of the pathologic section is resected, the support type artificial venous blood vessel with the valve is stitched on the normal vein, the operation is simple, and the operative wound is small.

Description

technical field [0001] The invention relates to a medical device, especially a medical artificial blood vessel which can be used to completely cure venous vascular diseases (including venous reflux disease and venous reflux disorder disease), in particular to an artificial venous blood vessel with a valve stent . Background technique [0002] As we all know, venous diseases of lower extremities are mainly divided into two categories: venous reflux diseases of lower extremities, such as chronic venous insufficiency of lower extremities; The most common chronic venous insufficiency (CVI) of the lower extremities is a common clinical disease characterized by persistent high pressure in the venous system of the lower extremities caused by blood reflux and stasis caused by valvular dysfunction. A survey and research conducted in my country in 1993 Show its incidence rate is 8.8%. Symptoms such as lower extremity swelling, hyperpigmentation, dermatitis and prolonged skin ulcer ca...

Claims

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Application Information

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IPC IPC(8): A61F2/06A61F2/24A61L27/16
Inventor 孙蓬可大年梅奇峰
Owner JIANGSU PROVINCE HOSPITAL
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