CN2635045Y - Caval vein filter - Google Patents

Caval vein filter Download PDF

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Publication number
CN2635045Y
CN2635045Y CN 03267064 CN03267064U CN2635045Y CN 2635045 Y CN2635045 Y CN 2635045Y CN 03267064 CN03267064 CN 03267064 CN 03267064 U CN03267064 U CN 03267064U CN 2635045 Y CN2635045 Y CN 2635045Y
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China
Prior art keywords
wire
filter
portion
vena cava
guide
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CN 03267064
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Chinese (zh)
Inventor
戴玲
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戴玲
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Priority to CN 03267064 priority Critical patent/CN2635045Y/en
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Publication of CN2635045Y publication Critical patent/CN2635045Y/en

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Abstract

A caval vein filter is capable to prevent tilt and displacement, and has simple structure and thin guide wires. The filter is characterized in that the filter part is of a plurality of tinsel wires converge together, and the filter part is fixed by a metal cap or a tube to form an umbrella, where a part of the tinsel wires function as a fixing part, and others a guiding part. The structure herein makes the caval vein filter be characterized in the advantages of non-titing, non-displacement, and simple structure.

Description

腔静脉滤器 Vena Cava Filter

所属技术领域 Those of skill

:本实用新型是一种医用血栓过滤器,特别是能够防止倾斜和移位的腔静脉滤器。 : This invention is a medical thrombosis filter, in particular a tilt and shift can be prevented the vena cava filter.

背景技术 Background technique

:目前,公知的腔静脉滤器构造是由过滤部和固定部组成,过滤部和固定部以不同的方式联接。 : Currently, known vena cava filter configured by the filter portion and a fixed portion composed of the filter portion and the fixed portion is coupled in a different manner. 但是,受腔静脉内血液流动、腹主动脉搏动和呼吸的影响,腔静脉滤器在下腔静脉内会产生倾斜和移位。 However, due to blood flow within the vena cava, pulsation and breathing affect the abdominal aorta, will produce a tilt and shift within the inferior vena cava IVC filter. 一般腔静脉滤器结构复杂,植入下腔静脉后不能防止倾斜和移位,影响过滤血栓效果。 Usually vena cava filter structure is complicated, a tilt and shift can not be prevented after implantation of the inferior vena cava thrombosis filtering effect of impact.

发明内容 SUMMARY

:为了解决现有腔静脉滤器结构复杂、倾斜和移位的不足,本实用新型提供一种腔静脉滤器,该腔静脉滤器结构简单,不仅能过滤血栓,而且能防止在下腔静脉内倾斜和移位。 : In order to solve the conventional complex structure vena cava filter, a tilt and shift of the deficiencies, the present invention provides a vena cava filter, the simple structure of the vena cava filter, the filter not only thrombosis but also prevent tilting and shifting in the lower vena cava bit.

本实用新型解决其技术问题所采用的技术方案是:一种腔静脉滤器,由过滤部、固定部、导向部组成,其特征在于:若干金属丝的顶端聚集,末端发散,整体结构呈伞状;其中顶端聚集的金属丝形成过滤部(1),发散的金属丝一部分形成固定部(2),另一部分形成导向部(3);固定部(2)与导向部(3)间隔排列;固定部(2)的金属丝末端设有小刺钩;所述过滤部(1)由金属帽或金属管固定;固定过滤部(1)的金属帽或金属管上设有金属小钩(4)。 Aspect of the present invention to solve the technical problem is: A vena cava filter, the filter portion, the fixed portion, the guide portion, and is characterized in that: a plurality of wire aggregate top end divergent, umbrella-shaped overall configuration ; wherein the top of the aggregate metal wire forming a filter portion (1), divergent wire form part of the fixed portion (2), the other part forms a guide portion (3); (3) spaced fixing portion (2) and the guide portion; fixed the wire end portions (2) is provided with a hook spines; the filter unit (1) is fixed by a metal cap or a metal tube; with small metal hook (4) of the filter fixing portion (1) is a metal cap or a metal tube .

本实用新型的有益效果是,可以过滤血栓的同时,防止在下腔静脉内倾斜和移位,整个结构仅用若干根金属丝连接而成,导向部主体结构仅为平行对称,并与伞状平面垂直的几根金属丝组成,结构简单,导管推送系统较细,对人体创伤小,并可永久放置,也可进行回收。 The beneficial effects of the present invention, the thrombus filter while preventing the inclination and shift in the lower vena cava, the entire structure with only a plurality of wires connected to each other, only guide portion parallel to the main structure symmetrical with plane umbrella few vertical wire, with the simple structure, the push catheter system smaller, less trauma to the body, and permanently placed, can also be recovered.

附图说明 BRIEF DESCRIPTION

:下面结合附图和实施例对本实用新型进一步说明。 : DRAWINGS The present invention is further described and embodiments of the embodiment.

图1是本实用新型的第一实施例的示意图。 1 is a schematic of the first embodiment of the present invention.

图2是本实用新型的第二实施例的示意图。 FIG 2 is a schematic view of a second embodiment of the present invention embodiment.

图3是本实用新型的第三实施例的示意图。 FIG 3 is a third embodiment of the present invention embodiment of FIG.

图4是本实用新型的第四实施例的示意图。 FIG 4 is a schematic view of a fourth embodiment of the present invention embodiment.

图5是本实用新型的第五实施例的示意图。 FIG 5 is a fifth embodiment of the present invention embodiment of FIG.

图中1.过滤部,2.固定部,3.导向部,4.金属小钩,5.金属丝段,A.弯折处,B.联接处。 1. FIG filter portion 2 fixed portion 3 guide portion 4 metal hooks, 5 wire segments, A. Bending portion, B. At the coupling.

具体实施方式 detailed description

:图1为本实用新型第一实施例,金属小钩(4)、过滤部(1)、固定部(2)、导向部(3)相联接。 : FIG. 1 is a first embodiment of the invention, metal hooks (4), the filter unit (1), the fixed portion (2), the guide portion (3) is coupled. 若干金属丝的顶端聚集,末端发散,整体结构呈伞状;其中顶端聚集的金属丝形成过滤部(1),发散的金属丝一部分形成固定部(2),另一部分形成导向部(3);固定部(2)与导向部(3)间隔排列;固定部(2)的金属丝末端设有小刺钩;所述过滤部(1)由金属帽或金属管固定;固定过滤部(1)的金属帽或金属管上设有金属小钩(4);形成导向部(3)的金属丝在适当处弯折后呈平行对称状,并与伞状平面垂直,且其末端设有小刺钩。 Some top wire aggregate, a divergent end, the overall configuration is umbrella-shaped; aggregate wherein the top portion form the filter wire (1), divergent wire fixing portion forming part (2), the other part forms a guide portion (3); the fixed portion (2) and the guide portion (3) arranged at intervals; fixing the wire end portions (2) is provided with a hook spines; the filter unit (1) is fixed by a metal cap or a metal tube; filter fixing portion (1) the metal cap is provided with small metal hook (4) or a metal tube; forming a guide portion (3) of the wire in a parallel symmetrical bent shape after proper place, and the plane perpendicular to the umbrella, and has a terminal with a small stab hook.

图2为本实用新型的第二实施例,图2与图1基本结构相一致,本实施例与上述实施例不同之处在于:导向部(3)的金属丝在适当处弯折后呈平行对称状,并与伞状平面垂直;导向部(3)弯折后的金属丝末端与另一仅由过滤部(1)、导向部(3)构成的腔静脉滤器的导向部(3)相联接,在上述的弯折处(A)及联接处(B)各产生一延伸金属丝段(5)。 FIG 2 is a second embodiment of the present novel practical, consistent with FIG. 2 basic configuration of FIG. 1, the embodiment differs from the above-described embodiment of the present embodiment in that: the guide portion (3) in a parallel wire is bent in the appropriate place symmetrical shape, and the plane perpendicular to the umbrella; guide portion (3) of the guide portion vena cava filters and other end of the wire bent portion consisting only of the filter (1), the guide section (3) (3) with coupling, extending each generated a wire section (5) bent at the above (a) and coupled at (B).

图3为本实用新型的第三实施例,图3与图1基本结构相一致,本实施例与上述实施例不同之处在于:导向部(3)的金属丝在适当处弯折后呈平行对称状,并与伞状平面垂直;导向部(3)弯折后的金属丝末端与另一仅由过滤部(1)、导向部(3)构成的腔静脉滤器的导向部(3)相联接。 3 to a third embodiment of the disclosure, FIG 3 is consistent with the basic structure of FIG. 1, the embodiment differs from the above-described embodiment of the present embodiment in that: the guide portion (3) in a parallel wire is bent in the appropriate place symmetrical shape, and the plane perpendicular to the umbrella; guide portion (3) of the guide portion vena cava filters and other end of the wire bent portion consisting only of the filter (1), the guide section (3) (3) with connection.

图4为本实用新型的第四实施例,图4与图1基本结构相一致,本实施例与上述实施例不同之处在于:固定过滤部(1)的金属帽或金属管上不设有金属小钩;导向部(3)的金属丝在适当处弯折后呈平行对称状,并与伞状平面垂直;导向部(3)弯折后的金属丝末端与另一由过滤部(1)、固定部(2)、导向部(3)构成的腔静脉滤器的导向部(3)相联接,所述另一腔静脉滤器的固定部(2)金属丝末端设有小刺钩,并呈发散状。 FIG 4 is a fourth embodiment of the invention, FIG. 4 and FIG. 1 the basic structure consistent with the present embodiment is different from the embodiment in that: the filter is not provided on the fixed portion (1) is a metal cap or a metal tube small metal hook; the guide portion (3) in the form of a wire bent parallel to the symmetry of the appropriate shape, and a plane perpendicular to the umbrella; guide portion (3) and the other end of the wire is bent from the filter unit (1 ), the fixed portion (2), guide portions (3) of the vena cava filter guide portion (3) composed of coupled, the other fixing portion of vena cava filters (2) is provided with a wire end hook spines, and were divergent.

图5为本实用新型的第五实施例,图5与图1结构基本相同,本实施例与上述实施例不同之处在于:所述固定部(2)、导向部(3)的金属丝在适当处弯折后呈平行对称状,并与伞状平面垂直,导向部(3)的金属丝末端设有小刺钩。 FIG 5 according to a fifth embodiment of the invention is present, the structure of FIG. 1 and FIG. 5 is substantially the same, the present embodiment is different from the embodiment in that: the wire fixing portion (2), the guide portion (3) in the suitably bent at the rear in a parallel symmetrical shape, and the plane perpendicular to the umbrella, the guide wire tip portion (3) is provided with a hook spines.

Claims (6)

1.一种腔静脉滤器,由过滤部、固定部、导向部组成,其特征在于:若干金属丝的顶端聚集,末端发散,整体结构呈伞状;其中顶端聚集的金属丝形成过滤部(1),发散的金属丝一部分形成固定部(2),另一部分形成导向部(3);固定部(2)与导向部(3)间隔排列;固定部(2)的金属丝末端设有小刺钩;所述过滤部(1)由金属帽或金属管固定。 A vena cava filter, the filter portion, the fixed portion, the guide portion, and is characterized in that: a plurality of wire aggregate top end divergent, umbrella-shaped overall configuration; wherein aggregated top portion forming a filter wire (1 ), divergent wire fixing portion forming part (2), the other part forms a guide portion (3); (3) spaced fixing portion (2) and the guide portion; fixed wire tip portion (2) is provided with spines hook; the filter unit (1) by a metal cap or a metal tube is fixed.
2.根据权利要求1所述的腔静脉滤器,其特征在于:导向部(3)的金属丝在适当处弯折后呈平行对称状,并与伞状平面垂直,且其末端设有小刺钩,固定过滤部(1)的金属帽或金属管上设有金属小钩(4)。 The vena cava filter according to claim 1, wherein: the wire guide portion (3) in a parallel symmetrical bent shape after proper place, and the plane perpendicular to the umbrella, and has a terminal with a small stab hooks, provided with small metal hook (4) on a metal cap or a metal filter tube fixing portion (1).
3.根据权利要求1所述的腔静脉滤器,其特征在于:导向部(3)的金属丝在适当处弯折后呈平行对称状,并与伞状平面垂直;导向部(3)弯折后的金属丝末端与另一仅由过滤部(1)、导向部(3)构成的腔静脉滤器的导向部(3)相联接,在上述的弯折处(A)及联接处(B)各产生一延伸金属丝段(5);固定过滤部(1)的金属帽或金属管上设有金属小钩(4)。 The vena cava filter according to claim 1, wherein: the guide section (3) of the wire in a parallel symmetrical bent shape after proper place, and the plane perpendicular to the umbrella; guide portion (3) is bent the other end of the wire guide portion only after the vena cava filter configuration (3) is coupled by the filter unit (1), the guide portion (3), bent at the above (a) and coupled at (B) extending each generated a wire section (5); with small metal hook (4) of the filter fixing portion (1) is a metal cap or a metal tube.
4.根据权利要求1所述的腔静脉滤器,其特征在于:导向部(3)的金属丝在适当处弯折后呈平行对称状,并与伞状平面垂直;导向部(3)弯折后的金属丝末端与另一仅由过滤部(1)、导向部(3)构成的腔静脉滤器的导向部(3)相联接;固定过滤部(1)的金属帽或金属管上设有金属小钩(4)。 The vena cava filter according to claim 1, wherein: the guide section (3) of the wire in a parallel symmetrical bent shape after proper place, and the plane perpendicular to the umbrella; guide portion (3) is bent wire end coupled with the other vena cava filters constituting the guide portion (3) only by the filter unit (1), the guide portion (3); the filter is provided on the fixed portion (1) is a metal cap or a metal tube small metal hook (4).
5.根据权利要求1所述的腔静脉滤器,其特征在于:导向部(3)的金属丝在适当处弯折后呈平行对称状,并与伞状平面垂直;导向部(3)弯折后的金属丝末端与另一由过滤部(1)、固定部(2)、导向部(3)构成的腔静脉滤器的导向部(3)相联接,所述另一腔静脉滤器的固定部(2)金属丝末端设有小刺钩,并呈发散状。 The vena cava filter according to claim 1, wherein: the guide section (3) of the wire in a parallel symmetrical bent shape after proper place, and the plane perpendicular to the umbrella; guide portion (3) is bent after the end of the other wire by the filter unit (1), the fixed portion (2), guide portions (3) (3) coupled to the guide portion of the vena cava filter configuration, the other fixing portion of vena cava filters (2) the end of the wire is provided with a hook spines, and in diverging shape.
6.根据权利要求1所述的腔静脉滤器,其特征在于:所述固定部(2)、导向部(3)的金属丝在适当处弯折后呈平行对称状,并与伞状平面垂直,导向部(3)的金属丝末端设有小刺钩;固定过滤部(1)的金属帽或金属管上设有金属小钩(4)。 According to claim 1 of the vena cava filter, wherein: said fixing part (2), guide portions (3) of the wire in a parallel symmetrical bent shape after proper place, and the plane perpendicular to the umbrella the wire guide end portion (3) is provided with a hook spines; with small metal hook (4) of the filter fixing portion (1) is a metal cap or a metal tube.
CN 03267064 2003-07-10 2003-07-10 Caval vein filter CN2635045Y (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102355871B (en) * 2009-01-16 2014-07-09 诺瓦特医疗有限公司 A vascular filter device
US9028524B2 (en) 2005-01-03 2015-05-12 Crux Biomedical, Inc. Methods for maintaining a filtering device within a lumen
CN105193521A (en) * 2015-11-09 2015-12-30 柏为(武汉)医疗科技有限公司 Recoverable vena cava filter with good attachment
CN107028680A (en) * 2017-06-06 2017-08-11 贾伟 A kind of vena cava filter
US10213288B2 (en) 2012-03-06 2019-02-26 Crux Biomedical, Inc. Distal protection filter
US10219887B2 (en) 2013-03-14 2019-03-05 Volcano Corporation Filters with echogenic characteristics
US10292677B2 (en) 2013-03-14 2019-05-21 Volcano Corporation Endoluminal filter having enhanced echogenic properties
US10350098B2 (en) 2013-12-20 2019-07-16 Volcano Corporation Devices and methods for controlled endoluminal filter deployment
US10426501B2 (en) 2012-01-13 2019-10-01 Crux Biomedical, Inc. Retrieval snare device and method
US10426590B2 (en) 2013-03-14 2019-10-01 Volcano Corporation Filters with echogenic characteristics
US10433945B2 (en) 2012-01-13 2019-10-08 Crux Biomedical, Inc. Retrieval snare device and method

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9510845B2 (en) 2005-01-03 2016-12-06 Crux Biomedical, Inc. Methods for maintaining a filtering device within a lumen
US9028524B2 (en) 2005-01-03 2015-05-12 Crux Biomedical, Inc. Methods for maintaining a filtering device within a lumen
US9427243B2 (en) 2005-01-03 2016-08-30 Crux Biomedical, Inc. Methods for providing protection during procedures in the vasculature
US9314259B2 (en) 2005-01-03 2016-04-19 Crux Biomedical, Inc. Devices and methods for vessel occlusion
US9351748B2 (en) 2005-01-03 2016-05-31 Crux Biomedical, Inc. Distal protection devices and methods of providing distal protection
US9387001B2 (en) 2005-01-03 2016-07-12 Crux Biomedical, Inc. Biodegradable implantable device
US9393034B2 (en) 2005-01-03 2016-07-19 Crux Biomedical, Inc. Spiral shaped filter
US9421026B2 (en) 2005-01-03 2016-08-23 Crux Biomedical, Inc. Coated endoluminal filters
US9439663B2 (en) 2005-01-03 2016-09-13 Crux Biomedical, Inc. Endoluminal filter
US9463038B2 (en) 2005-01-03 2016-10-11 Crux Biomedical, Inc. Retrievable endoluminal filter
US9463037B2 (en) 2005-01-03 2016-10-11 Crux Biomedical, Inc. Endoluminal filter
US9833304B2 (en) 2009-01-16 2017-12-05 Novate Medical Limited Vascular filter device
CN102355871B (en) * 2009-01-16 2014-07-09 诺瓦特医疗有限公司 A vascular filter device
US10426501B2 (en) 2012-01-13 2019-10-01 Crux Biomedical, Inc. Retrieval snare device and method
US10433945B2 (en) 2012-01-13 2019-10-08 Crux Biomedical, Inc. Retrieval snare device and method
US10213288B2 (en) 2012-03-06 2019-02-26 Crux Biomedical, Inc. Distal protection filter
US10426590B2 (en) 2013-03-14 2019-10-01 Volcano Corporation Filters with echogenic characteristics
US10219887B2 (en) 2013-03-14 2019-03-05 Volcano Corporation Filters with echogenic characteristics
US10292677B2 (en) 2013-03-14 2019-05-21 Volcano Corporation Endoluminal filter having enhanced echogenic properties
US10350098B2 (en) 2013-12-20 2019-07-16 Volcano Corporation Devices and methods for controlled endoluminal filter deployment
CN105193521A (en) * 2015-11-09 2015-12-30 柏为(武汉)医疗科技有限公司 Recoverable vena cava filter with good attachment
CN107028680A (en) * 2017-06-06 2017-08-11 贾伟 A kind of vena cava filter

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