CN102380131B - 一种可降解或拆卸的消化道支架 - Google Patents

一种可降解或拆卸的消化道支架 Download PDF

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CN102380131B
CN102380131B CN2011103230995A CN201110323099A CN102380131B CN 102380131 B CN102380131 B CN 102380131B CN 2011103230995 A CN2011103230995 A CN 2011103230995A CN 201110323099 A CN201110323099 A CN 201110323099A CN 102380131 B CN102380131 B CN 102380131B
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digestive tract
degradable
bracket
detachable
titanium alloy
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CN102380131A (zh
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刘吉勇
王传栋
刘瑾
李俊起
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Liu Jiyong
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刘吉勇
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Priority to PCT/CN2012/081622 priority patent/WO2013056612A1/zh
Priority to DE212012000019U priority patent/DE212012000019U1/de
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/02—Inorganic materials
    • A61L31/022—Metals or alloys
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/04—Macromolecular materials
    • A61L31/06—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L31/148—Materials at least partially resorbable by the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2400/00—Materials characterised by their function or physical properties
    • A61L2400/16—Materials with shape-memory or superelastic properties

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Vascular Medicine (AREA)
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  • General Health & Medical Sciences (AREA)
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Abstract

一种可降解或拆卸的消化道支架，属于医疗器械装置技术领域。消化道狭窄是临床常见疾病，放置支架是保守治疗消化道狭窄主要方式之一，但是目前应用的支架容易移位而且移位后不易取出。该发明的技术方案为：上右三分之一圆镍钛合金金属片（1）、上左三分之一圆镍钛合金金属片（4）和下三分之一圆镍钛合金金属片（3）通过多聚乳酸材料线或手术线（2）的绕线把它们连接在一起。它的优点是：该消化道支架具有新颖性、创造性和实用性，镍钛合金金属片具有优良的弹性和柔软性，组织相容性好，异物感轻，支撑力好、不易移位可持久发挥扩张作用，有效的解除消化道狭窄。

Description

一种可降解或拆卸的消化道支架
技术领域
 本发明涉及医疗器械装置技术领域，更具体的讲是一种可降解或拆卸的消化道支架。
背景技术
消化道狭窄是临床常见疾病，放置支架是保守治疗消化道狭窄主要方式之一，但是目前应用的支架容易移位而且移位后不易取出。
发明内容
为克服上述缺点，本发明的目的是发明一种可降解或拆卸以便取出的消化道支架。它的技术方案为：上右三分之一圆镍钛合金金属片1、上左三分之一圆镍钛合金金属片4和下三分之一圆镍钛合金金属片3通过多聚乳酸材料线或手术线2的绕线把它们连接在一起。该发明的优点是：该消化道支架具有新颖性、创造性和实用性，镍钛合金金属片具有优良的弹性和柔软性，组织相容性好，异物感轻，支撑力好、不易移位可持久发挥扩张作用，有效的解除消化道狭窄；多聚乳酸材料是一种优良的生物医用高分子聚酯材料，具有无毒，无刺激性，生物相容性好等特点，在体内可水解为乳酸，并可最终降解为二氧化碳和水，其代谢产物均无毒，并且可以调节其分子量大小控制降解速度，以达到我们需要的降解时间；连接线可在内镜下拆除。多聚乳酸材料分解或连接线拆除后支架分解成数片，自然排出体外或内镜下取出。为解决上述存在的问题，特别设计利用可吸收材料，将其制成的丝线连接镍钛合金金属片，可在一定时间内吸收；且连接线可在内镜下拆除，支架分解成数片，自然排出体外或内镜下取出。
附图说明
图1主视图，图2后视图，图3为在图1A-A处剖视图。附图中：1、上右三分之一圆镍钛合金金属片，2、多聚乳酸材料或手术线，3、下三分之一圆镍钛合金金属片，4、上左三分之一圆镍钛合金金属片。  
具体实施方式
上右三分之一圆镍钛合金金属片1、上左三分之一圆镍钛合金金属片4和下三分之一圆镍钛合金金属片3通过多聚乳酸材料线或手术线2的绕线把它们连接在一起。为解决上述存在的问题，特别设计利用可吸收的多聚乳酸材料线2或可拆除的手术线2构成上右三分之一圆镍钛合金金属片1、上左三分之一圆镍钛合金金属片4和下三分之一圆镍钛合金金属片3的之间连接部分，多聚乳酸材料线2可在体内一定时间内降解或手术线2可在内镜下拆除；支架分解成数片，自然排出体外或内镜下取出。

Claims (1)

1. 一种可降解或拆卸的消化道支架，其特征是：上右三分之一圆镍钛合金金属片（1）、上左三分之一圆镍钛合金金属片（4）和下三分之一圆镍钛合金金属片（3）通过多聚乳酸材料线或手术线（2）的绕线把它们连接在一起。
CN2011103230995A 2011-10-21 2011-10-21 一种可降解或拆卸的消化道支架 Expired - Fee Related CN102380131B (zh)

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CN2011103230995A CN102380131B (zh) 2011-10-21 2011-10-21 一种可降解或拆卸的消化道支架
PCT/CN2012/081622 WO2013056612A1 (zh) 2011-10-21 2012-09-19 一种可降解或拆卸的消化道支架
DE212012000019U DE212012000019U1 (de) 2011-10-21 2012-09-19 Abbaubare oder demontierbare Halterung für den Verdauungskanal

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Publication number Priority date Publication date Assignee Title
CN102380131B (zh) * 2011-10-21 2013-12-04 刘吉勇 一种可降解或拆卸的消化道支架
CN108938157A (zh) * 2018-06-07 2018-12-07 佳木斯大学 一种可降解或拆除的消化道支架

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US6258117B1 (en) * 1999-04-15 2001-07-10 Mayo Foundation For Medical Education And Research Multi-section stent
JP2006296559A (ja) * 2005-04-18 2006-11-02 Univ Kansai Medical 金属および生体吸収性材料の複合材料による医療用ステント、その製法及びこれに用いる編機
US20070043418A1 (en) * 2005-08-19 2007-02-22 Medlogics Device Corporation Hybrid lumen-supporting stents having self-expanding end segments
EP1965730A4 (en) * 2005-12-30 2009-06-17 Bard Inc C R VASCULAR STENT WITH BIORESORBABLE CONNECTOR AND METHODS
CN101491467A (zh) * 2008-01-25 2009-07-29 令狐恩强 一种治疗消化管腔狭窄的半裸型可回收金属支架
CN101513367B (zh) * 2009-04-02 2010-10-27 中国人民解放军总医院第二附属医院 可降解食道管状介入支架及其制备方法
CN101822578B (zh) * 2010-03-29 2012-06-13 张发明 复合型腔道支架
CN102380131B (zh) * 2011-10-21 2013-12-04 刘吉勇 一种可降解或拆卸的消化道支架

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