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A kind of vascular external use cuff

A technology of blood vessels and thin films, applied in surgical fixation nails, medical science, surgery, etc., to improve the treatment effect, reduce the risk of tearing the arterial wall, and avoid bleeding

Active Publication Date: 2011-11-30
SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the embodiment of the present application provides an external vascular cuff to solve the problems caused by directly suturing artificial blood vessels with human blood vessels and stent grafts in existing operations. The technical solution is as follows:

Method used

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  • A kind of vascular external use cuff
  • A kind of vascular external use cuff
  • A kind of vascular external use cuff

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] figure 1 It is a schematic structural diagram of an external blood vessel cuff provided in the embodiment of the present application.

[0032] Such as figure 1 As shown, the external vascular cuff includes: a first annular film 101 , a stent 102 and a fixing wire 103 , wherein: the stent 102 is fixed on the inner or outer wall of the first annular membrane 101 through the fixing wire 103 .

[0033] The first annular membrane 101 is provided with an opening along the axial direction on the outer side of the ring, and a certain gap is left at the opening. In this embodiment of the present application, the first annular film 101 is a flat film. In other embodiments, the first annular film 101 may also be a corrugated film so that the first annular film 101 has elasticity in the radial direction. The material of the first annular film 101 is a medical polymer material film, and the medical polymer material includes but not limited to: polyester, dacron and PTFE, and other...

Embodiment 2

[0037] Figure 4 It is a schematic structural diagram of another external blood vessel cuff provided in the embodiment of the present application.

[0038] The bracket 102 may also be a combined bracket formed by connecting multiple brackets. Such as Figure 4 As shown, in other embodiments of the present application, the combined stent in the external vascular cuff includes two stents. Figure 5 and Figure 6 for Figure 4 The schematic diagram of the expanded structure, such as Figure 4 As shown, 104 in the figure is a fixed connector, and the two brackets of the combined bracket are connected by the fixed connector 104 among the figures; as Figure 6 As shown, the two brackets of the combined bracket in the figure are connected by welding.

Embodiment 3

[0040] Figure 7 It is a schematic structural diagram of the third external vascular cuff provided in the embodiment of the present application.

[0041] Such as Figure 7 As shown, the extravascular cuff further includes: a second annular membrane 104 , and the stent 102 is fixed between the first annular membrane 101 and the second membrane 104 .

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Abstract

The invention discloses an external hoop for blood vessels. The external hoop for the blood vessels comprises a first annular film and a support, wherein the first annular film is provided with an opening along an annular axial direction; and the support is fixed on the inner wall or the outer wall of the first annular film. The external hoop for the blood vessels can also comprise a second annular film, wherein the support is arranged between the first annular film and the second annular film. The external hoop for the blood vessels can clamp brittle vascular walls between the external hoop for the blood vessels and a covered stent so as to achieve the effect of protecting the vascular walls at sutures; and during suturing, artificial blood vessels, the covered stent, human blood vessels and the external hoop for the blood vessels are sutured together, so that the risk of tearing an artery wall during suturing is reduced, the re-tearing of the artery wall and haemorrhage caused by the re-tearing of the artery wall can also be avoided after suturing, and the problems caused by directly suturing the artificial blood vessels, the human blood vessels and the covered stent in the prior art are solved.

Description

technical field [0001] The present application relates to the field of medical devices, in particular to an external vascular cuff for vascular surgery. Background technique [0002] For patients with aneurysm and dissection, when the complex arch aneurysm involves the ascending aorta and extends to the descending aorta at the same time, thoracotomy combined with artificial blood vessels and stent grafts is usually used for clinical treatment. During the operation, through the median thoracotomy or left subcostal thoracotomy, the diseased aortic vessel and some branch vessels (commonly known as "three hairs") are removed, and the diseased blood vessel is replaced with artificial blood vessel ("elephant trunk" technique), and the surgical palpation The covered stent is implanted in the descending aorta that is not reached, so that the covered stent seals the aneurysm from the inside, and then the artificial blood vessel is sutured with the normal human blood vessel and the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/115A61L31/06A61L31/04A61L31/02
Inventor 刘健罗七一谢志永赵振心赵安昆周红芳
Owner SHANGHAI MICROPORT ENDOVASCULAR MEDTECH (GRP) CO LTD
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