CN110495970A - 一种用于肝内门体静脉覆膜支架及支架置入装置 - Google Patents

一种用于肝内门体静脉覆膜支架及支架置入装置 Download PDF

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CN110495970A
CN110495970A CN201910891987.3A CN201910891987A CN110495970A CN 110495970 A CN110495970 A CN 110495970A CN 201910891987 A CN201910891987 A CN 201910891987A CN 110495970 A CN110495970 A CN 110495970A
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纪建松
陈敏江
涂建飞
赵中伟
范晓希
王海林
叶亚妮
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Lishui Central Hospital
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A61F2002/072—Encapsulated stents, e.g. wire or whole stent embedded in lining

Abstract

本发明涉及医疗器械，尤其涉及用于肝内门体静脉的覆膜支架。一种用于肝内门体静脉覆膜支架，包括支架本体，支架本体包括覆膜段和裸膜段，裸膜段处于覆膜段的两端，覆膜段为相互连接的波浪形支架杆组成，波浪形支架杆之间相互不间断连接，裸膜段包括横向和纵向交错连接的支架杆，裸膜段展开后呈由内向外延伸的喇叭口状，一侧的裸膜段置入肝静脉内，另一侧的裸膜段置入门静脉内，支架本体装在置入装置上。为了完成支架两侧展开成喇叭口状，必须用专门的置入装置，此置入装置在原先的基础上改进了让两侧固定更牢靠，定位更准确，抽走通路套管后，不会引起支架本体的偏移，术后的使用中支架本体处于畅通。

Description

一种用于肝内门体静脉覆膜支架及支架置入装置
技术领域
本发明涉及医疗器械，尤其涉及用于肝内门体静脉的覆膜支架。
背景技术
在早期支架内血栓，常见于支架贴壁不良、支架扩张不全、支架过长、置入多个串联支架、支架置入术后残余狭窄等等原因，如何降低TIPS支架内血栓形成，制定适合病变特点的手术方式，选择适合病变类型的支架，严格遵循TIPS手术操作规范，避免造成支架内血栓的发生。如:避免支架贴壁不良，应进行充分预扩，支架植入后如支架膨胀不良，可行高压球囊后扩张等等。
发明内容
本发明所要解决的技术问题是：针对现有技术存在的不足，提供一种结构简单，固定牢靠的用于肝内门体静脉覆膜支架。
为实现本发明之目的，采用以下技术方案予以实现：
一种用于肝内门体静脉覆膜支架，包括支架本体，支架本体包括覆膜段和裸膜段，裸膜段处于覆膜段的两端，覆膜段为相互连接的波浪形支架杆组成，波浪形支架杆之间相互不间断连接，裸膜段包括横向和纵向交错连接的支架杆，裸膜段展开后呈由内向外延伸的喇叭口状，一侧的裸膜段置入肝静脉内，另一侧的裸膜段置入门静脉内，支架本体装在置入装置上。
作为优选方案, 支架本体喇叭口的大小为8-12mm。
作为优选方案, 支架本体的长度为6-8cm。
作为优选方案,所述一种用于肝内门体静脉覆膜支架的置入装置，包括控制组件、连接管、通路套管和心轴，控制组件包括止血端口、冲洗端口和延展旋钮，控制组件和通路套管还连接有控制旋钮，控制组件和通路套管均连接在连接管上，连接管的另一端部设有所述心轴，通路套管内包裹有所述的支架本体，通路套管的一侧上设有固定头，固定头的两侧分别设有连接线，连接线固定在所述裸膜段的端面上，连接线将裸膜段收合在一起，通路套管的另一端面上还设有连接头，连接头固定在另一侧的所述裸膜段上。
与现有技术相比较，本发明的有益效果是：喇叭口的设计使固定更牢固，支架贴壁更紧，由于喇叭口的两侧固定结构覆膜段在使用中不会向两侧晃动，可以延长支架的使用寿命，保持通路流畅；为了完成支架两侧展开成喇叭口状，必须用专门的置入装置，此置入装置在原先的基础上改进了让两侧固定更牢靠，定位更准确，抽走通路套管后，不会引起支架本体的偏移，术后的使用中支架本体处于畅通。
附图说明
图1是本发明的支架本体1放入肝内门体静脉内的结构示意图；
图2是本发明操作的结构示意图；
图3是本发明的支架本体1刚放入肝内门体静脉内的结构示意图；
图4是本发明的置入装置的结构示意图；
图5是本发明的裸膜段3收合结构示意图；
图6是本发明的裸膜段3展开成喇叭口的结构示意图。
具体实施方式
一种用于肝内门体静脉覆膜支架，包括支架本体1，支架本体1包括覆膜段2和裸膜段3，裸膜段3处于覆膜段2的两端，覆膜段2为相互连接的波浪形支架杆4组成，波浪形支架杆4之间相互不间断连接，裸膜段3包括横向和纵向交错连接的支架杆5，裸膜段3展开后呈由内向外延伸的喇叭口状，一侧的裸膜段3置入肝静脉6内，另一侧的裸膜段3置入门静脉7内，支架本体1的喇叭口大小为8-12mm，支架本体1的长度为6-8cm，支架本体1装在置入装置8上。置入装置8包括控制组件9、连接管10、通路套管11和心轴12，控制组件9包括止血端口9-1、冲洗端口9-2和延展旋钮9-3，控制组件9和通路套管11还连接有控制旋钮13，控制组件9和通路套管11均连接在连接管10上，连接管10的另一端部设有所述心轴12，通路套管11内包裹有所述的支架本体1，通路套管11的一侧上设有固定头13，固定头13的两侧分别设有连接线14，连接线14固定在所述裸膜段3的端面上，连接线14将裸膜段3收合在一起，通路套管11的另一端面上还设有连接头15，连接头15固定在另一侧的所述裸膜段3上。
手术过程：右颈部通过一约5mm小切口穿刺右颈内静脉，置入导管通过上腔静脉、右心房及下腔静脉进入肝静脉6，经过肝静脉6穿刺入门静脉7，使用球囊扩张分流道，然后在肝实质内置入覆膜金属支架建立门静脉7与肝静脉6之间的通道，因为肝静脉6压力低，门静脉7部分血流通过支架分流至肝静脉6，以达到降低门脉压力根治消化道出血的目的。
操作中架本体1的覆膜段2上已经涂有抗凝药膜，支架本体1整体包裹在通路导管内，将置入装置8的心轴12延图2的线路插入，连接管10向内延伸。当置入装置8经过图3的线路，心轴12穿出，裸膜段3分别在肝静脉6和门静脉7上，对前后进行固定，拉动最下端穿出的心轴12后，先移除心轴12，再将通路导管11从支架本体1上端取出。在拉动过程中，裸膜段3变成喇叭口状态分别置入肝静脉6内和置入门静脉7内，首先置入装置8上有固定在静脉上的固定头13和连接头15，裸膜段3固定后，在拉力的作用下慢慢撑开，最终两侧的裸膜段3均向外形成喇叭口状，加以固定，将置入装置8的通路套管11等都移除，只留下支架本体1，整个手术完成。

Claims (4)

1.一种用于肝内门体静脉覆膜支架，其特征在于，包括支架本体，支架本体包括覆膜段和裸膜段，裸膜段处于覆膜段的两端，覆膜段为相互连接的波浪形支架杆组成，波浪形支架杆之间相互不间断连接，裸膜段包括横向和纵向交错连接的支架杆，裸膜段展开后呈由内向外延伸的喇叭口状，一侧的裸膜段置入肝静脉内，另一侧的裸膜段置入门静脉内，支架本体装在置入装置上。
2.根据权利要求1所述一种用于肝内门体静脉覆膜支架, 其特征在于，支架本体喇叭口的大小为8-12mm。
3.根据权利要求1所述一种用于肝内门体静脉覆膜支架, 其特征在于，支架本体的长度为6-8cm。
4.根据权利要求1所述一种用于肝内门体静脉覆膜支架的置入装置，其特征在于，包括控制组件、连接管、通路套管和心轴，控制组件包括止血端口、冲洗端口和延展旋钮，控制组件和通路套管还连接有控制旋钮，控制组件和通路套管均连接在连接管上，连接管的另一端部设有所述心轴，通路套管内包裹有所述的支架本体，通路套管的一侧上设有固定头，固定头的两侧分别设有连接线，连接线固定在所述裸膜段的端面上，连接线将裸膜段收合在一起，通路套管的另一端面上还设有连接头，连接头固定在另一侧的所述裸膜段上。
CN201910891987.3A 2019-09-20 2019-09-20 一种用于肝内门体静脉覆膜支架及支架置入装置 Withdrawn CN110495970A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112137759A (zh) * 2020-03-05 2020-12-29 上海宏派医疗科技有限公司 一种带涂层tips覆膜支架

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112137759A (zh) * 2020-03-05 2020-12-29 上海宏派医疗科技有限公司 一种带涂层tips覆膜支架

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