CN111134756B - 一种防止异位栓塞的纤维慢性栓塞装置 - Google Patents
一种防止异位栓塞的纤维慢性栓塞装置 Download PDFInfo
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Abstract
本发明公开了一种防止异位栓塞的纤维慢性栓塞装置，包括线状栓塞剂、输送管以及注射管，线状栓塞剂设置在输送管内，输送管的后端连接注射管的出口，输送管包括连接部、容存部以及输出部，输送管的前后端设置有封闭帽，容存部的两端分别连接输出部和连接部，连接部与注射管的输出端连接，注射管的后端设置有加压装置；线状栓塞剂设置在输送管内，加压装置向输送管加压能将线状栓塞剂输入血管内，本发明将栓塞剂设计成一根或一束长丝状结构，注入血管后长丝充填血管，短期内仍有血流通过，随着长丝附着血栓的逐渐形成，血流逐渐被完全阻断，形成慢性栓塞的效果；长丝相互牵扯，长丝状纤维相互缠绕，预防异位栓塞的发生，避免组织急性缺血坏死。
Description
技术领域
本发明属于医疗器械领域，具体涉及一种防止异位栓塞的纤维慢性栓塞装置。
背景技术
介入或外科手术中常用栓塞血管的办法治疗肿瘤及血管等疾病，传统栓塞剂为碘化油、生物胶、明胶海绵等。栓塞剂进入血管后完全阻断血流，造成栓塞部位缺血坏死，同时栓塞材质有可能受血流冲刷脱落形成栓子，随着血流进入肺、脑、肢体等部位，造成肺栓塞、脑栓塞、肢体坏疽等致命风险。随着栓塞技术的扩展，血管栓塞也应用于非肿瘤性疾病以降低器官血流量，调整器官功能。这就需要造成栓塞部位的慢性缺血并给器官充分的缺血代偿时间，才能避免器官急性缺血坏死。另外，需要栓塞剂局限于栓塞部位避免异位栓塞。这是现有栓塞剂很难满足的。
发明内容
为了解决了现有技术中存在的问题，本发明公开了一种防止异位栓塞的纤维慢性栓塞装置，通过将栓塞材料设计成一束或多束长丝状结构，注入血管后长丝充填血管，但长丝间的空隙中仍有血流通过，并缓慢形成血栓逐渐堵塞空隙，造成慢性栓塞的效果，避免组织器官急性缺血坏死，而且长丝状栓塞物各部分牵连成一整体，不会局部脱落形成异位栓塞。
为了实现上述目的，本发明采用的技术方案是，一种防止异位栓塞的纤维慢性栓塞装置，包括线状栓塞剂、输送管以及注射管，线状栓塞剂设置在输送管内，输送管的两端均设置有可拆卸的封闭帽；使用时，输送管的后端打开并连接注射管的出口，输送管包括连接部、容存部以及输出部，容存部的两端分别连接输出部和连接部，连接部与注射管的输出端连接，注射管的后端设置有加压装置。
容存部和连接部的直径大于输出部的直径，容存部至输出部的直径逐渐减小，连接部的外侧设置有手持耳。
加压装置为医用脉冲泵，医用脉冲泵的输出端连接注射管的入口。
线状栓塞剂上沿长度方向为螺旋形、链形、单股的丝或多股丝状。
线状栓塞剂的前端分为若干股丝，所述股丝上涂覆有抗凝血涂层或促进凝血涂层。
线状栓塞剂的表面设置有打磨形成的毛细纤维。
线状栓塞剂的材料采用聚乙烯、蚕丝、尼龙、聚乙醇酸或合成聚酯。
线状栓塞剂直径小于1mm。
线状栓塞剂的后端设置有卡头。
容存部内填充有推送保存液。
与现有技术相比，本发明至少具有以下有益效果：线状栓塞剂设置在输送管内，加压装置向输送管加压能将线状栓塞剂输入血管内，本发明通过将栓塞剂设计成一束长丝状结构，注入血管后长丝充填血管，短期内仍有血流通过，随着长丝附着血栓的逐渐形成，血流逐渐被完全阻断，形成慢性栓塞的效果；另外由于长丝的相互牵扯，整个栓塞剂为一个整体，长丝状纤维每根纤维相互缠绕，预防异位栓塞的发生；整根纤维，纤维为生物惰性不可降解，能在X光下显影，直径小，柔韧性很好，能随压力进入血管、小血管、毛细血管或血窦；长丝状纤维允许血流通过，丝状物上逐渐形成血栓，造成栓塞部位慢性缺血，避免组织急性缺血坏死。
进一步的，容存部和连接部的直径大于输出部的直径，容存部至输出部的直径逐渐减小，输出部的压力瞬间增大，有助于使线状栓塞剂快速到达指定位置。
进一步的，线状栓塞剂上沿长度方向为螺旋形、链形、单股的丝或多股的丝状，在压力作用以及血管阻力作用下，形成螺旋形栓塞，栓塞时间短，效果好，而且不易发生移位。
进一步的，线状栓塞剂的材料采用聚乙烯、蚕丝或尼龙均为非吸收型材料，使其成为永久栓塞，采用聚乙醇酸或合成聚酯使其能够被人体吸收，在完成栓塞作用后消失。
进一步的，丝状栓塞剂的粗细根据栓塞血管的粗细而定，栓塞血管越粗，则丝状栓塞剂越粗，栓塞血管越细或要求栓塞部位越接近毛细血管，则丝状栓塞剂越细。
进一步的，根据需要栓塞部位慢性栓塞的快慢可以选择，光滑的丝状栓塞剂和不同毛绒度的丝状栓塞剂，需要越慢的栓塞则选择光滑的丝状栓塞剂，如需更快栓塞则将丝状栓塞剂外表面打磨形成毛细纤维，形成毛绒外部结构，毛绒度越明显，则栓塞时间越短。
进一步的，丝状栓塞剂尾端设置卡头，能用于固定丝状栓塞剂的位置，进一步防止其发生移位，而且还能随时取出。
进一步的，线状栓塞剂的前端涂覆有抗凝血涂层或促进凝血涂层，使其能够在血管内防止血液附着凝固或者促进附着的血液快速凝固。
进一步的，容存部内填充有推送保存液，推送保存液利于栓塞物的向前推送。
附图说明
图1本发明结构示意图。
图2a为丝状栓塞剂注入血管后在血管内呈漂浮状态示意图，因相互纠缠不能分离。
图2b为血栓沿丝状栓塞物形成示意图。
图2c为沿丝状栓塞物形成的血栓逐渐增多，完全阻塞血管示意图。
附图中，1-线状栓塞剂，2-输送管，3-注射管，21-输出部，22-容存部，23-连接部，4-手持耳。
具体实施方式
下面结合附图对本发明进行详细阐述。
如图1所示，一种防止异位栓塞的纤维慢性栓塞装置，包括线状栓塞剂1、输送管2以及注射管3，线状栓塞剂1设置在输送管2内，输送管2的两端均设置有可拆卸的封闭帽；使用时，输送管2的后端打开并连接注射管3的出口，输送管2包括连接部23、容存部22以及输出部21，容存部22的两端分别连接输出部21和连接部23，连接部23与注射管3的输出端连接，注射管3的后端设置有加压装置；容存部22和连接部23的直径大于输出部21的直径，容存部22至输出部21的直径逐渐减小，连接部23的外侧设置有手持耳4；待线状栓塞剂1即将注入前，打开输送管2前端的封闭帽；线状栓塞剂1储存于输送管2，使用时后接以生理盐水注射器，加速推注冲入血管。
加压装置为医用脉冲泵，医用脉冲泵的输出端连接注射管3的入口。
线状栓塞剂1上沿长度方向设置有螺旋形缺陷；线状栓塞剂1的后端设置有卡头。
线状栓塞剂1的材料采用聚乙烯、蚕丝、尼龙、聚乙醇酸或合成聚酯。
线状栓塞剂1的表面设置有打磨形成的毛细纤维；线状栓塞剂1直径小于1mm。
线状栓塞剂1的前端分为若干股丝，所述股丝上涂覆有抗凝血涂层或促进凝血涂层，使其能够在血管内防止血液附着凝固或者促进附着的血液快速凝固。
线状栓塞剂的表面涂覆有抗凝血涂层或促进凝血涂层。
栓塞剂为生物惰性不可降解，微观下栓塞剂为长丝状结构，为单股的丝或多股的丝状，结构可为链形、丝状或螺旋形，X线下可显影，线状栓塞剂放置在长针头内，容存部22内填充有推送保存液，使用时加压水冲法注入血管内。
可选的实施例，线状栓塞剂1上沿长度方向设置有螺旋形缺陷，具体的，沿着长度方向，线状栓塞剂1的直径呈均匀间隔变化，相邻两段的直径不同，并且所述间隔为螺旋型走向，直径较小的部位收到液体冲力时，会先弯曲变形，容易形成栓塞，而且所述栓塞不易游走。
丝状栓塞剂储存于容存部22，使用时注射管中充入生理盐水，加速推注冲入血管。
如图2a所示，丝状栓塞剂注入血管后在血管内呈漂浮状态，因相互纠缠不能分离；如图2b所示，血栓沿丝状栓塞物形成，起到部分阻塞血管的作用；如图2c所示，沿丝状栓塞物形成的血栓逐渐增多，完全阻塞血管。
本发明通过将栓塞剂设计成一束长丝状结构，注入血管后长丝充填血管，短期内仍有血流通过，随着长丝附着血栓的逐渐形成，血流逐渐被完全阻断，造成慢性栓塞的效果；另外由于长丝的相互牵扯，整个栓塞剂为一个整体，能预防异位栓塞的发生。
Claims (6)
1.一种防止异位栓塞的纤维慢性栓塞装置，其特征在于，包括线状栓塞剂(1)、输送管(2)以及注射管(3)，线状栓塞剂(1)设置在输送管(2)内，输送管(2)的两端均设置有可拆卸的封闭帽；使用时，输送管(2)的后端打开并连接注射管(3)的出口，输送管(2)包括连接部(23)、容存部(22)以及输出部(21)，容存部(22)的两端分别连接输出部(21)和连接部(23)，连接部(23)与注射管(3)的输出端连接，注射管(3)的后端设置有加压装置；线状栓塞剂(1)上沿长度方向为螺旋形、链形、单股的丝或多股的丝状；线状栓塞剂(1)的表面设置有打磨形成的毛细纤维；线状栓塞剂(1)的前端分为若干股丝，所述股丝上涂覆有抗凝血涂层或促进凝血涂层；加压装置为医用脉冲泵，医用脉冲泵的输出端连接注射管(3)的入口。
2.根据权利要求1所述的防止异位栓塞的纤维慢性栓塞装置，其特征在于，容存部(22)和连接部(23)的直径大于输出部(21)的直径，容存部(22)至输出部(21)的直径逐渐减小，连接部(23)的外侧设置有手持耳(4)。
3.根据权利要求1所述的防止异位栓塞的纤维慢性栓塞装置，其特征在于，线状栓塞剂(1)的材料采用聚乙烯、蚕丝、尼龙、聚乙醇酸或合成聚酯。
4.根据权利要求1所述的防止异位栓塞的纤维慢性栓塞装置，其特征在于，线状栓塞剂(1)直径小于1mm。
5.根据权利要求1所述的防止异位栓塞的纤维慢性栓塞装置，其特征在于，线状栓塞剂(1)的后端设置有卡头。
6.根据权利要求1所述的防止异位栓塞的纤维慢性栓塞装置，其特征在于，容存部(22)内填充有推送保存液。
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