Anti-embolism carotid artery forming system

An arterial and embolization technology, applied in the field of interventional treatment of vascular diseases, can solve the problems of reducing embolization complications without showing effectiveness, and achieve the effects of completely reliable occlusion, simple and convenient operation, and simplified catheter operation.

Pending Publication Date: 2022-07-26
武汉拓扑转化医学研究中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other approaches, such as proximal occlusion of the carotid artery, ha

Method used

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  • Anti-embolism carotid artery forming system
  • Anti-embolism carotid artery forming system
  • Anti-embolism carotid artery forming system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like Figure 1-2 As shown, the anti-embolism carotid angioplasty system according to the embodiment of the present invention includes a stent delivery sheath 1, a self-expanding stent 2 and a stent advancing catheter 3, and is characterized in that:

[0033] The stent delivery sheath 1 has a proximal end 4, a distal end 5 and an inner cavity 6;

[0034] The self-expanding stent 2 has an unexpanded state and an expanded state;

[0035] The stent advancing catheter 3 should have a catheter shaft 7, and an expandable member is installed at the distal end of the catheter shaft 7;

[0036] The stent delivery sheath 1 is provided with the stent advancing catheter 3, the stent advancing catheter 3 is sleeved with a matching sliding sleeve block 8, and the sliding sleeve block 8 is surrounded with a number of uniformly distributed Described self-expanding stent 2, the self-expanding stent 2 is sleeved with a matching breathable membrane 9, the self-expanding stent 2 is connec...

Embodiment 2

[0040] like Figure 1-2 As shown, the embolic protection assembly 13 is sized and configured to be insertable through the lumen 6 of the stent advancer sheath 18 within the stent The intermediate position between the proximal end 4 and the distal end 5 of the delivery sheath 1 has an opening passing through the wall of the stent delivery sheath and communicating with the lumen 6 .

Embodiment 3

[0042] like Figure 1-2 As shown, the opening is sized and configured to allow insertion of the tubular shaft 14 of the embolic protection assembly 13 therethrough, and the stent delivery sheath 1 is provided with an automatic release sheath 20 that automatically releases The sheath 20 encloses the proximal end of the tubular shaft 14 of the embolic protection assembly 13 and the proximal end of the stent delivery sheath 1 together.

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Abstract

The anti-embolism carotid artery forming system comprises a stent conveying sheath, a self-expanding stent and a stent propelling catheter, and the stent conveying sheath is provided with a near end, a far end and an inner cavity; the self-expanding stent has an unexpanded state and an expanded state; the stent advancing catheter is provided with a catheter shaft, and an expandable component is installed at the far end of the catheter shaft. The stent delivery sheath is provided with the stent propelling catheter, and the stent propelling catheter is sleeved with a sliding sleeve block matched with the stent propelling catheter. The stent has the beneficial effects that embolism protection can be formed through the integrated expansion stent filter screen during stent implantation of vascular endoplasty for treating carotid artery stenosis, the operation is simple and convenient, and the expansion breathable film expands on the expansion stent filter screen to provide completely reliable blockage of the carotid artery; the expansion breathable film in the stent provides more effective fixation for the expansion breathable film, and catheter operation in subsequent steps is simplified.

Description

technical field [0001] The invention relates to the technical field of interventional treatment of vascular diseases, in particular to an anti-embolism carotid arterioplasty system. Background technique [0002] Catheters based on treatments including angioplasty and stenting have shown surprising advances in the treatment of infarct vascular disease. In 1974, Gruentzig et al. first reported percutaneous transluminal angioplasty using a balloon dilatation catheter for the treatment of peripheral arterial stenosis. [0003] Despite the amazing progress this technology has made, many problems and difficulties remain in the use of angioplasty and stenting to treat carotid artery disease. Specifically, manipulation of the catheter in the carotid artery may dislodge embolic material, such as thrombotic material and atherosclerotic plaque, which are carried distally by the bloodstream into the cerebral vasculature and cause ischemic damage to the brain Currently available distal...

Claims

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Application Information

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IPC IPC(8): A61F2/01A61F2/82A61F2/958A61M29/04
CPCA61F2/82A61F2/958A61M29/02A61F2/01A61F2/011
Inventor 孙云戴会新李菲王刚封裕杰
Owner 武汉拓扑转化医学研究中心有限公司
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