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Sealing-type self-expanding unit stent

A self-expanding, closed technology, applied in the field of medical devices, can solve the problems of increasing the operation time and risk of patients, vascular stent stenosis, and vascular intimal hyperplasia, so as to reduce the lumen contact area, reduce the operation time, and reduce the stent in the stent. restenosis effect

Pending Publication Date: 2018-11-23
ZHEJIANG BARTY MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of stent system releases a long stent to completely cover the diseased blood vessel. In theory, it can support the narrow blood vessel and clear the blocked blood vessel; Intimal hyperplasia, which in turn leads to in-stent restenosis (ISR); and this type of stent system only contains one stent, which cannot meet the clinical need for multiple stents; when the length of the lesion is greater than the length of the stent, it needs to be added again A set of stent system, increase patient operation time and risk

Method used

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  • Sealing-type self-expanding unit stent
  • Sealing-type self-expanding unit stent
  • Sealing-type self-expanding unit stent

Examples

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Embodiment Construction

[0043] Below in conjunction with accompanying drawing, the present invention will be further described by specific embodiment:

[0044] See figure 1 , a multi-section application operating system for a closed self-expanding unit stent, including a manipulation assembly part 2, the manipulation assembly part 2 includes an inner sleeve assembly 23, an outer sleeve assembly 22 and a Y-shaped connector 21, and also includes a Bracket assembly part 1 on part 2, the structure can be found in figure 2 and image 3 The bracket assembly part 1 includes a multi-section unit bracket 11 and a plurality of anti-jump components 12 for stably releasing the corresponding unit brackets. The unit brackets 11 and anti-jump components 12 are arranged on the inner casing component 23 . The outer cannula assembly 22 and the inner cannula assembly 23 are connected together by a Y-shaped connector 21 to form a complete delivery system.

[0045] Figure 7 It is a Y-shaped connector 21, including ...

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Abstract

The invention discloses a sealing-type self-expanding unit stent. The unit stent includes a main body segment and a developing mark part connected to one end of the main body segment; the main body segment is of a tubular structure and has a shrinking state and an expansion state, wherein under the shrinking state, the main body segment is conveniently put into a blood vessel; under the expansionstate, the main body segment expands in the blood vessel. The main body segment includes triangular waveform units which are connected with one another into a whole part in the circumferential and axial directions of the stent under the shrinking state. Each triangular waveform unit is provided with an octagonal sealing frame body formed under the expansion state. The multi-segment stent can be distributed in a lesion blood vessel part for supporting; after being implanted, compared with stents of the same kind, the sealing-type self-expanding unit stent has the advantages that positioning isstable, a rejection effect on the human body is small, and bloodstream interference is small.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a closed self-expanding unit bracket. Background technique [0002] Lumen stenosis and blockage, atherosclerosis, calcified lesions, and dissections are common tube diseases. Without timely treatment and surgery, it will lead to serious damage to the cardiovascular and cerebrovascular systems, respiratory, digestive, urinary, and endocrine systems, and may be life-threatening if necessary. . The endoluminal stent is an important, even the main treatment tool and means for the treatment of such diseases. [0003] The traditional stent system uses a single long stent to be compressed in the delivery system, and then delivered to the lesion by the delivery system, such as the commonly used LIFESTENT® and LIFESTENT® XL vascular stent system of CR Bard in the market, COOK (COOK) ) Zilver vascular stent system and other stent systems. This type of stent system releases a lon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/90A61F2/95
CPCA61F2/90A61F2/95A61F2002/823A61F2002/826
Inventor 王震王成何旭玲张则哲蒋海涛
Owner ZHEJIANG BARTY MEDICAL TECH CO LTD
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