CN2220875Y - 钛镍合金新型编织网状尿道支架 - Google Patents

钛镍合金新型编织网状尿道支架 Download PDF

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Publication number
CN2220875Y
CN2220875Y CN 93222884 CN93222884U CN2220875Y CN 2220875 Y CN2220875 Y CN 2220875Y CN 93222884 CN93222884 CN 93222884 CN 93222884 U CN93222884 U CN 93222884U CN 2220875 Y CN2220875 Y CN 2220875Y
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CN 93222884
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邱长友
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No251 Hospital Pla
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No251 Hospital Pla
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Abstract

本实用新型为一种钛镍合金尿道支架,用于对前列腺增生患者的治疗。本实用新型的特征是:它由一根钛镍丝编织成网状,钛镍合金丝的直径为0.24~0.35mm,编织成的网状孔为0.15~6mm之间,支架长度30~90mm,支架内径为:6~12mm。具有扩张力大,定位精确等特点。低温时,支架柔软,可挤压缩变成条索状,方便置入,支架置入后不影响尿道内窥镜检查。

Description

钛镍合金新型编织网状尿道支架
本实用新型涉及一种新型钛镍合金编织网状尿道支架,属于医疗器械。
前列腺增生症是老年人常见的多发病之一,临床表现为膀胱出口梗阻,排尿困难,病人十分痛苦,目前通常采用前列腺切除术,但有些病人因患有某些疾病不宜进行手术,不得不采用非开放性手术治疗方法。为克服上述缺点,中国专利90226379.X公开了一种钛镍记忆合金螺旋状尿道支架,但该支架也存在一些不足,如:回复力差,扩张力不足,有个别支架在相变温度后有扭曲现象。
本实用新型的目的是:提供一种在相变时作用强,扩张力大,定位更精确的钛镍合金尿道支架。
本发明的目的是这样的:将钛镍合金尿道支架编织成单丝网状。
下面结合附图对本实用新型作进一步说明。
图1为网状尿道支架结构图;
图2为图1中A部分的放大图;
图3为锥状支架示意图;
图4为双喇叭形支架示意图。
参照附图,网状尿道支架由一根钛镍丝编织而成,图1所示为管状支架。钛镍合金丝直径为0.24~0.35mm,编织成的网状孔为0.15~6mm,支架长度30~90mm,支架内径6~12mm。
本实用新型的优点是:1.低温时柔软,可挤压缩变成条索状,置入更方便;2.支架在相变温度后,在原位恢复原形状,定位更精确;3.支架为单丝编织网状结构,在相变时钛镍丝的互力作用强,扩张力大;4.支架置入后不影响尿道内窥镜检查。

Claims (5)

1.一种新型钛镍合金尿道支架,其特征是:它由一根钛镍合金丝编织成网状。
2.根据权利要求1所述的尿道支架,其特征是:钛镍合金丝的直径为0.24~0.35mm,编织成的网状孔为0.15~6mm之间,支架长度30~90mm,支架内径为:6~12mm。
3.根据权利要求1所述的尿道支架,其特征是:其形状可以是网状管形。
4.根据权利要求1所述的尿道支架,其特征是:其形状可以是网状锥形。
5.根据权利要求1所述的尿道支架,其特征是:其形状可以是网状双喇叭形。
CN 93222884 1993-08-28 1993-08-28 钛镍合金新型编织网状尿道支架 Expired - Fee Related CN2220875Y (zh)

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CN 93222884 CN2220875Y (zh) 1993-08-28 1993-08-28 钛镍合金新型编织网状尿道支架

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CN 93222884 CN2220875Y (zh) 1993-08-28 1993-08-28 钛镍合金新型编织网状尿道支架

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CN2220875Y true CN2220875Y (zh) 1996-02-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1626048B (zh) * 1997-01-24 2012-09-12 帕拉贡知识产权有限责任公司 具有双稳态弹簧结构的可膨胀的装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1626048B (zh) * 1997-01-24 2012-09-12 帕拉贡知识产权有限责任公司 具有双稳态弹簧结构的可膨胀的装置

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