CN104042373A - Recoverable inferior vena cava support - Google Patents

Recoverable inferior vena cava support Download PDF

Info

Publication number
CN104042373A
CN104042373A CN 201410262916 CN201410262916A CN104042373A CN 104042373 A CN104042373 A CN 104042373A CN 201410262916 CN201410262916 CN 201410262916 CN 201410262916 A CN201410262916 A CN 201410262916A CN 104042373 A CN104042373 A CN 104042373A
Authority
CN
Grant status
Application
Patent type
Prior art keywords
stent
end
connecting rod
vena cava
inferior vena
Prior art date
Application number
CN 201410262916
Other languages
Chinese (zh)
Other versions
CN104042373B (en )
Inventor
祖茂衡
Original Assignee
祖茂衡
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

The invention discloses a recoverable inferior vena cava support, which belongs to the technical field of medical equipment. The recoverable inferior vena cava support comprises an endovascular stent, a connecting rod, an extension rod and a delivery and recycling sheathing canal which are sequentially connected, wherein the endovascular stent is formed by metal wires and is a self-expanding support, the length of the endovascular stent is 60-80mm, the metal wires are memory alloy, the releasing ends of the metal wires are gathered into a whole, the diameter of the recovering end is greater than that of the releasing end, the endovascular stent is integrally of a pyramid structure, the recovering end is welded with a docking pipe, the other end of the docking pipe is connected with the connecting rod, the other end of the connecting rod is engraved with threads, and one end, corresponding to the connecting rod, of the extension rod is also engraved with threads which are matched with the threads of the connecting rod. While supporting force of the endovascular stent is ensured, the endovascular stent can be recovered in time, so that the condition that since the endovascular stent is placed in the blood vessel for a long time, thrombus is formed, and restenosis occurs due to the fact that blood vessel endothelium hyperplasia is caused can be avoided, and the treatment effect is ensured.

Description

一种可回收式下腔静脉支架 A recyclable formula IVC bracket

技术领域 FIELD

[0001] 本发明涉及一种支架,具体是一种可回收式下腔静脉支架,属于介入医疗设备技术领域。 [0001] The present invention relates to a stent, in particular a retrievable inferior vena cava stent, belonging to the interventional medical device technical field.

背景技术 Background technique

[0002] 血管内支架是放置在人体血管内的一种金属性支撑器,具有撑开狭窄的血管、保证局部血流通畅的作用,已经在临床上得到广泛应用(如冠状动脉支架,颈动脉支架,髂股动脉支架,下腔静脉支架,肝静脉支架,髂静脉支架等);血管内支架一旦放入血管内部便无法取出,但由于血管内支架是人体异物,长时间容易形成血栓和引起血管内皮增生而发生再狭窄,再狭窄一旦发生则难以处理。 [0002] Intravascular stents are placed within the body vessel of a metallic holder having open stenosed vessels, blood flow to ensure local action, it has been widely used (e.g., coronary stents, carotid clinically stent, iliac artery stent, stent inferior vena cava, the hepatic vein stent, iliac stent, etc.); intravascular stent Once in the interior of the vessel can not be removed, but the foreign body is the body intravascular stents, and cause long clots endothelial proliferation and restenosis, restenosis is difficult to process the event.

[0003] 下腔静脉结构与型状成圆柱状,肝静脉、副肝静脉和肾静脉开口于下腔静脉右侧壁、前壁和左侧壁,目前使用的下腔静脉支架跨越肝静脉、副肝静脉和肾静脉开口时可以阻挡肝静脉、副肝静脉或肾静脉血流,血管内皮可以沿支架生长而导致肝静脉、副肝静脉或肾静脉开口的闭塞,下腔静脉支架近心端靠近或部分伸入右心房时,由于心脏快速、持续的收缩和舒张导致支架被动型收缩和舒张,2个月即可出现金属疲劳而导致支架断裂和解体,解体的支架可以随血流进入心室壁或肺动脉内而出现严重并发症。 [0003] Structure vena cava and the shape into a cylindrical shape, hepatic vein, renal vein and hepatic veins in the inferior vena cava open right side wall, a front wall and left side wall, the inferior vena cava stent currently used across the hepatic vein, hepatic veins and renal veins can block the opening hepatic vein, renal vein or hepatic venous flow, endothelial growth may cause the stent along the hepatic vein, renal vein or the hepatic vein occlusion open, proximal end of the inferior vena cava stent when close to or partially into the right atrium of the heart since rapid, sustained contraction and relaxation of the stent results in passive contraction and relaxation, metal fatigue can occur in two months and results in breakage and disintegration of the stent, the stent may disintegration into the ventricle with blood flow wall or the pulmonary artery and severe complications. 下腔静脉支架植入后为下腔静脉内的异物,在此基础上支架内还可以发生血栓形成而导致下腔静脉再阻塞。 Inferior vena cava stent implantation of foreign matter in the lower vena cava, on this basis can result in thrombosis inferior vena cava stent restenosis occurs.

[0004] 通常情况下解决下腔静脉再通问题分为两种,一种是使用球囊扩张进行治疗,但由于球囊扩张只能保持数分钟局部的挤压作用,球囊撤离后被扩张处下腔静脉会出现弹性回缩而无法达到令人满意扩张度;另一种解决方法是使用可降解的支架,但其材料是铝镁合金,支撑力较小,无法保证治疗效果。 [0004] Typically recanalization solution into the inferior vena cava of two kinds, one is treated using balloon, but since the balloon can only be maintained locally pressing action for several minutes, after the withdrawal of the balloon dilatation the inferior vena cava will recoil can not achieve a satisfactory degree of expansion; another solution is to use a biodegradable stent, but the material is an aluminum-magnesium alloy, a small support force, can not guarantee a therapeutic effect.

发明内容 SUMMARY

[0005] 针对上述问题,本发明提供一种可回收式下腔静脉支架,在确保支架支撑力的同时,避免其因长时间放置在血管内形成血栓和引起血管内皮增生而发生肝静脉、副肝静脉或肾静脉的阻塞,确保治疗效果。 [0005] In view of the above problems, the present invention provides a retrievable inferior vena cava stent, ensuring the supporting force while avoiding thrombus formation and which cause hepatic vein endothelial hyperplasia occurs within the vessel is placed for a long time, the sub renal vein or hepatic vein occlusion, to ensure that the treatment effect.

[0006] 为实现上述目的,本发明提供一种可回收式下腔静脉支架,包括依次连接的血管内支架、对接管、连接杆、延长杆以及输送和回收鞘管,输送和回收鞘管包括内芯和外套管; 其中,血管内支架由记忆合金编织组成,为自膨胀展开式支架,长度为60mm-80mm ;为一条金属丝编织,主体为直筒状,释放端聚拢成一体,回收端血管内支架直径大于释放端直径,整体呈单锥体结构; 回收端焊接一个对接管,对接管的另一端连接有一根连接杆,所述的连接杆另一端刻有螺纹,连接杆长度为40cm-60cm,延长杆对应连接杆的一端同样刻有螺纹,并与连接杆的螺纹匹配,延长杆长度为100cm-140cm。 [0006] To achieve the above object, the present invention provides a retrievable inferior vena cava stent, comprising sequentially connected an intravascular stent, to take over the connecting rod and the extension rod and recovery sheath delivery, delivery and recovery sheath comprising the inner core and the outer casing; wherein the intravascular stent by a shape memory alloy woven composition, expandable stent is self-expanding, a length of 60mm-80mm; is a braided wire, the body is a straight cylindrical, the discharge end gather into one, the recovery end of the vessel stent diameter larger than the inner diameter of the discharge end of the whole is a single pyramidal; recovering solder a takeover terminal, is connected to one end of the connecting rod to take over the other, the other end of the connecting rod are threaded, connecting rod length 40cm- 60cm, the corresponding end of the extension rod connecting rod likewise is threaded and matching threads with the connecting rod, the rod extending the length of 100cm-140cm.

[0007] 进一步,输送和回收鞘管长度小于延长杆与连接杆长度之和,便于回收和释放。 [0007] Further, the delivery and recovery sheath is less than the length of the extension rod and the connecting rod length, ease of recovery and release.

[0008] 进一步,外套管末端设置止血阀,可有效止血,防止血液逆流。 [0008] Further, the outer end of the tube is provided hemostatic valve can effectively stop bleeding, prevent blood backflow.

[0009] 进一步,连接杆与延长杆连接端为内螺纹或者外螺纹,延长杆与之对应匹配,此螺纹连接结构便于连接管与延长杆的连接于解脱。 [0009] Further, the extension rod connecting rod connecting end an internal thread or an external thread matching the corresponding extension rod, this threaded connection for easy connection pipe connected to the extension rod release.

[0010] 进一步,对接管与连接杆为焊接。 [0010] Further, the connecting rod takeover welding.

[0011] 优选,血管内支架材料为镍钛记忆合金。 [0011] Preferably, the graft material is nitinol.

[0012] 优选,所述的金属丝的直径为0. 3mm_0. 4mm,血管内支架直径为26mm-30mm。 [0012] Preferably, the wire diameter of 0. 3mm_0. 4mm, intravascular stent diameter of 26mm-30mm.

[0013] 工作原理:释介入手术时,经颈静脉留置鞘管将导丝插入下腔静脉内,沿导丝插入支架输送鞘管至下腔静脉远心端处,退出输送和回收鞘管内芯和导丝,经输送和回收鞘送入血管内支架至鞘管远心端处,根据预先定位标志,将血管内支架前端定位于下腔静脉靶点处,固定连接杆和延长杆,后退输送和回收鞘管,血管内支架弹开后将鞘管退出体外,固定支架连接杆,旋转延长杆使其脱离连接杆,将露出颈静脉留置鞘管外部的连接杆进行无菌包扎; 回收阶段:血管内支架在下腔静脉血管中放置2-3周一段时间后,通过超声观察发现血管内血液流通顺畅后,将延长杆与连接杆对接后,经延长杆、连接杆和颈静脉留置鞘管插入输送和回收鞘管,输送和回收鞘管到达支架近心端,固定延长杆并用力向前推进输送和回收鞘管至支架完全进入回收鞘管内,固 [0013] Principle: When released interventional procedures, jugular vein catheter sheath the guide wire is inserted into the inferior vena cava, the stent delivery sheath to the core end of the inferior vena cava far inserted along the guide wire to exit the delivery and recovery of the core-sheath tube and the guide wire, through the delivery and recovery sheath into the heart endovascular stent to the sheath distal end of the tube, according to a predetermined alignment mark, endovascular stent positioned at the distal end of the inferior vena cava target, fixed connecting rods and the extension rod, reverse conveyance and the recovery sheath, the stent will bounce endovascular sheath to exit the body, a fixed bracket connecting rod extension rod away from the rotary connecting rod, the jugular vein is exposed outside of the catheter sheath connecting rod sterile dressing; recovery stage: after a period of 2-3 weeks placed endovascular stent inferior vena cava blood vessel, the intravascular blood flow smoothly, the extension rod abutment with the connecting rod by ultrasonic observation showed that the extension rod, the connecting rod and the sheath is inserted into the jugular vein indwelling delivery and recovery sheath, the sheath tube to the delivery and recovery proximal end of the stent, and firmly fixed to the extension rod forward delivery and recovery sheath to the stent completely into recovery sheath, solid 输送和回收鞘管,回拉延长杆将支架撤离出输送和回收鞘管。 Delivery and recovery sheath, the extension rod pull back stent delivery and withdrawal of the recovery sheath.

[0014] 结合工作原理,本发明提供在确保血管内支架支撑力的同时,可以对其进行及时的回收,避免了其因长时间放置在血管内形成血栓和引起血管内皮增生而发生阻塞其分支的情况,确保了治疗效果。 [0014] The binding principle, the present invention provides a supporting force to ensure that at the same time within the vessel can be recovered in time, to avoid prolonged thereof positioned within a blood vessel thrombosis and hyperplasia occurs from endothelial block its branches situation, to ensure that the therapeutic effect.

附图说明 BRIEF DESCRIPTION

[0015] 图1是本发明的结构示意图; 图2是图1中:处的结构放大图; 图3是图1中二处的结构放大图。 [0015] FIG. 1 is a structural diagram of the present invention; FIG. 2 is a diagram illustrating the 1: enlarged view of the structure; FIG. 3 is an enlarged view of the structure of FIG 1 two.

[0016] 图中:1、血管内支架,2、对接管,3、连接杆,4、延长杆,5、内芯,6、外套管,7、止血阀。 [0016] FIG: 1, intravascular stents, 2, takeover, 3, connecting rod 4, the extension rod 5, inner core 6, the outer sleeve, 7, the hemostatic valve.

具体实施方式 detailed description

[0017] 下面结合附图对本发明做进一步说明。 [0017] DRAWINGS The present invention is further described.

[0018] 如图1所示,一种可回收式下腔静脉支架,包括依次连接的血管内支架1、连接杆3、延长杆4以及输送和回收鞘管,输送和回收鞘管包括内芯5和外套管6 ; 其中,结合图2和图3 :其中,血管内支架1由记忆合金编织组成,为自膨胀展开式支架,长度为60mm-80mm,为一条金属丝编织;主体为直筒状,释放端聚拢成一体,回收端血管内支架1直径大于释放端直径,整体呈单锥体结构; 回收端焊接一个对接管2,对接管2的另一端连接有一根连接杆3,所述的连接杆3另一端刻有螺纹,连接杆3长度为40cm-60cm,延长杆4对应连接杆3的一端同样刻有螺纹,并与连接杆3的螺纹匹配,延长杆3长度为100cm-140cm。 [0018] As shown in FIG A retrievable inferior vena cava stent 1, including sequentially connected intravascular stent 1, connecting rod 3, the extension rod 4 and a conveying and recovery sheath, delivery and recovery sheath core comprises 5 and outer pipe 6; wherein, in conjunction with FIGS. 2 and 3: wherein, intravascular stents braided of memory alloys, expandable stent is self-expanding, a length of 60mm-80mm, is a braided wire; body is a straight cylindrical release gather into one end, the inner end of the recovery vessel stent delivery end diameter larger than a diameter of the whole is a single pyramidal; recovering solder a takeover terminal 2, to take over the other end 2 is connected to a connecting rod 3, the the connecting rod 3 and the other end is threaded, connecting rod 3 length 40cm-60cm, the extension rod 4 corresponding to the end 3 of the connecting rod likewise is threaded and matching threads 3 of the connecting rod, the extension rod 3 length 100cm-140cm.

[0019] 进一步,输送和回收鞘长度小于延长杆4与连接杆3长度之和,便于血管内支架1 的输送和回收。 [0019] Further, the delivery and recovery of the sheath is less than the length of the extension rod 4 and the recovery conveyance length of the connecting rod 3 and facilitate intravascular stent 1.

[0020] 进一步,外套管6末端设置止血阀7,可有效止血,防止血液逆流。 [0020] Further, the outer sleeve 6 the end of the hemostatic valve 7 is provided, which can effectively stop bleeding, prevent blood backflow.

[0021] 优选,连接杆3与延长杆4连接端为内螺纹或者外螺纹,延长杆4与之对应匹配, 多种匹配方式,确保准确对接。 [0021] Preferably, the connecting rod 34 is connected to the end of the extension rod is an internal thread or an external thread of the extension rod 4 corresponding matching, matching various ways to ensure accurate docking.

[0022] 优选,对接管2与连接杆3为螺纹连接或焊接,具有多种连接方式。 [0022] Preferably, the connecting rod 2 takeover 3 is screwed or welded, with a variety of connections.

[0023] 优选,血管内支架1材料为镍钛记忆合金,确保血管内支架的支撑力。 [0023] Preferably, a support force endovascular stent material is nitinol, ensure intravascular stent.

[0024] 优选,金属丝的直径为0. 3mm_0. 4mm,血管内支架1直径为26mm-30mm,适用于人体下腔静脉,确保治疗效果。 [0024] Preferably the diameter of the wire is 0. 3mm_0. 4mm, inner diameter of the blood vessel stent 1 is 26mm-30mm, suitable for human inferior vena cava, to ensure a therapeutic effect.

[0025] 释放阶段:释介入手术时,经颈静脉留置鞘管将导丝插入下腔静脉内,沿导丝插入支架输送鞘管至下腔静脉远心端处靶点处,退出输送和回收鞘管内芯5和导丝,经输送和回收鞘送入血管内支架1至鞘管远心端处,根据预先定位标志,将血管内支架1前端定位于下腔静脉靶点处,固定连接杆3和延长杆4,后退输送和回收鞘管,血管内支架1弹开后将输送和回收鞘管退出体外,固定支架连接杆3,旋转延长杆4使其脱离连接杆3,将露出颈静脉留置鞘管外部的连接杆3进行无菌包扎; 回收阶段:血管内支架1在下腔静脉血管中放置2-3周一段时间后,通过超声观察发现血管内血液流通顺畅后,将延长杆4与连接杆3对接后,经延长杆4、连接杆3和颈静脉留置鞘管插入输送和回收鞘管,输送和回收鞘管到达血管内支架1近心端,固定延长杆4并用力向前推进输送和回收鞘管 [0025] The release phase: When released interventional procedure transjugular sheath indwelling guide wire is inserted into the vena cava, the stent delivery sheath is inserted to the lower chamber at the distal end of the target vein along the guide wire to exit the delivery and recovery 5 and the sheath core wire, through the delivery and recovery sheath into the heart endovascular stent to the sheath distal end of the tube 1, according to a predetermined alignment mark, the front end of the endovascular stent 1 is positioned in the inferior vena cava at the target, the connecting rod is fixed 3 and 4 the extension rod, delivery and recovery sheath retracted, a bounce after endovascular stent delivery and recovery sheath to exit the body, the connecting rod fixing bracket 3, rotation of the extension rod 4 away from the connecting rod 3, the jugular vein is exposed indwelling external sheath connecting rod 3 sterile dressing; recovery stage: the intravascular stent placement 2-3 weeks period of the inferior vena cava vessel 1, after the intravascular blood flow smoothly, the extension rod 4 and observed by sonication after mating connecting rod 3, the extension rod 4, connecting rod 3 and the sheath is inserted into the jugular vein catheter sheath delivery and recovery, and recovery sheath delivery endovascular stent 1 reaches the proximal, stationary extension rod 4 is forced to move forward and delivery and recovery sheath 至血管内支架1完全进入回收鞘管内,固定输送和回收鞘管,回拉延长杆4将支架撤离出输送和回收鞘管。 Endovascular stent 1 to complete the recovery sheath into the fixed delivery and recovery sheath, retraction of the extension rod 4 showing a stent delivery and withdrawal of the recovery sheath. .

[0026] 结合工作原理,本发明提供在确保血管内支架1支撑力的同时,可以对其进行及时的回收,避免了其因长时间放置在血管内形成血栓和引起血管内皮增生而发生阻塞其分支的情况,确保了治疗效果,具有较高的医疗效果和市场前景。 [0026] The binding principle, the present invention provides a supporting force to ensure that the stent at the same time, can be recovered in time, to avoid the long put in its intravascular thrombus formation and cause vascular endothelial proliferation which occurs obstruction branch of the situation, to ensure that the treatment effect, with high medical effectiveness and market prospects.

Claims (7)

  1. 1. 一种可回收式下腔静脉支架,包括依次连接的血管内支架(1)、连接杆(3)、延长杆(4)以及输送和回收鞘管,输送和回收鞘管包括内芯(5)和外套管(6);其特征在于, 其中,血管内支架(1)由记忆合金编织组成,为自膨胀展开式支架,长度为60mm-80mm, 为一条金属丝编织;主体为直筒状,释放端聚拢成一体,回收端血管内支架(1)直径大于释放端直径,整体呈单锥体结构; 回收端焊接一个对接管(2),对接管(2)的另一端连接有一根连接杆(3),所述的连接杆(3 )另一端刻有螺纹,连接杆(3 )长度为40cm-60cm,延长杆(4)对应连接杆(3 )的一端同样刻有螺纹,并与连接杆(3)的螺纹匹配,延长杆(3)长度为lOOcm-HOcm。 A retrievable inferior vena cava stent, comprising sequentially connected an intravascular stent (1), connecting rod (3), the extension rod (4) and the recovery sheath, and the transport, delivery and recovery sheath includes an inner core ( 5) and outer sleeve (6); characterized in that, wherein the intravascular stent (1) memory alloy woven composition, expandable stent is self-expanding, a length of 60mm-80mm, is a braided wire; body is a straight cylindrical release gather into one end, the inner end of the recovery vessel stent (1) release of diameter greater than the diameter of the end, the whole showed a single pyramidal; recovering solder a terminal of the nozzle (2), of the socket (2) and the other end connected to a connection rod (3), said connecting rod (3) and the other end is threaded, the connecting rod (3) a length of 40cm-60cm, the extension rod (4) corresponding to the connecting rod (3) is threaded end of the same, and with matching threaded connecting rod (3), the extension rod (3) length lOOcm-HOcm.
  2. 2. 根据权利要求1所述的一种可回收式下腔静脉支架,其特征在于,所述的输送和回收鞘管长度小于延长杆(4)与连接杆(3)长度之和。 A retrievable inferior vena cava stent according to claim 1, characterized in that said delivery and recovery sheath is less than the length of the extension rod (4) and the connecting rod (3) and length.
  3. 3. 根据权利要求1所述的一种可回收式下腔静脉支架,其特征在于,所述的外套管(6) 末端设置止血阀(7)。 A retrievable inferior vena cava stent according to claim 1, wherein said outer sleeve (6) end of the hemostatic valve is provided (7).
  4. 4. 根据权利要求1或2所述的一种可回收式下腔静脉支架,其特征在于,所述的连接杆(3)与延长杆(4)连接端为内螺纹或者外螺纹,延长杆(4)与之对应匹配。 4. According to a retrievable inferior vena cava stent of claim 1 or claim 2, wherein said connecting rod (3) and the extension rod (4) connected to an end of the internal thread or an external thread extension rod (4) corresponding match.
  5. 5. 根据权利要求1或2所述的一种可回收式下腔静脉支架,其特征在于,所述的对接管(2)与连接杆(3)为螺纹连接或者焊接。 5. According to a retrievable inferior vena cava stent of claim 1 or claim 2, wherein said pair of nozzle (2) and the connecting rod (3) is a threaded connection or welding.
  6. 6. 根据权利要求1所述的一种可回收式下腔静脉支架,其特征在于,所述的血管内支架(1)材料为镍钛记忆合金。 6. According to a retrievable inferior vena cava stent according to claim 1, wherein the intravascular stent (1) material is nitinol.
  7. 7. 根据权利要求1所述的一种可回收式下腔静脉支架,其特征在于,所述的金属丝的直径为0. 3mm_0. 4mm,血管内支架(1)直径为26mm-30mm。 7. According to a retrievable inferior vena cava stent according to claim 1, wherein the diameter of the wire is 0. 3mm_0. 4mm, endovascular stent (1) having a diameter of 26mm-30mm.
CN 201410262916 2014-06-13 2014-06-13 A recyclable formula IVC bracket CN104042373B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201410262916 CN104042373B (en) 2014-06-13 2014-06-13 A recyclable formula IVC bracket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201410262916 CN104042373B (en) 2014-06-13 2014-06-13 A recyclable formula IVC bracket

Publications (2)

Publication Number Publication Date
CN104042373A true true CN104042373A (en) 2014-09-17
CN104042373B CN104042373B (en) 2016-01-27

Family

ID=51496121

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201410262916 CN104042373B (en) 2014-06-13 2014-06-13 A recyclable formula IVC bracket

Country Status (1)

Country Link
CN (1) CN104042373B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105943213A (en) * 2015-12-23 2016-09-21 微创心脉医疗科技(上海)有限公司 Stent delivering system and use method thereof
CN105943211A (en) * 2015-12-23 2016-09-21 微创心脉医疗科技(上海)有限公司 Stent delivering system and back releasing assembly thereof

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050080431A1 (en) * 2002-12-02 2005-04-14 Gi Dynamics, Inc. Bariatric sleeve removal devices
CN101933855A (en) * 2010-08-26 2011-01-05 先健科技(深圳)有限公司 Recyclable vascular stent and recycling method thereof
CN101961269A (en) * 2010-04-19 2011-02-02 杭州启明医疗器械有限公司 Conveying device for conveying artificial cardiac valve replacement device
CN102488577A (en) * 2011-12-14 2012-06-13 湖南埃普特医疗器械有限公司 Intravascular guiding wire positioning device and manufacturing method thereof
CN102670333A (en) * 2012-06-08 2012-09-19 同济大学 Aortic valve stent with coronary artery and conveyor of same
WO2012138884A1 (en) * 2011-04-08 2012-10-11 W.L. Gore & Associates, Inc. Endoprosthesis delivery system
WO2013022798A1 (en) * 2011-08-05 2013-02-14 California Institute Of Technology Percutaneous heart valve delivery systems
CN103720530A (en) * 2014-01-10 2014-04-16 曹莹莹 Placing and recovering device of non-memory alloy esophageal stent
CN103750929A (en) * 2014-01-10 2014-04-30 曹莹莹 Nickel-titanium memory alloy esophageal stent placing and recycling device used in X-ray perspective
CN203970621U (en) * 2014-06-13 2014-12-03 祖茂衡 Recyclable postcava bracket

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050080431A1 (en) * 2002-12-02 2005-04-14 Gi Dynamics, Inc. Bariatric sleeve removal devices
CN101961269A (en) * 2010-04-19 2011-02-02 杭州启明医疗器械有限公司 Conveying device for conveying artificial cardiac valve replacement device
CN101933855A (en) * 2010-08-26 2011-01-05 先健科技(深圳)有限公司 Recyclable vascular stent and recycling method thereof
WO2012138884A1 (en) * 2011-04-08 2012-10-11 W.L. Gore & Associates, Inc. Endoprosthesis delivery system
WO2013022798A1 (en) * 2011-08-05 2013-02-14 California Institute Of Technology Percutaneous heart valve delivery systems
CN102488577A (en) * 2011-12-14 2012-06-13 湖南埃普特医疗器械有限公司 Intravascular guiding wire positioning device and manufacturing method thereof
CN102670333A (en) * 2012-06-08 2012-09-19 同济大学 Aortic valve stent with coronary artery and conveyor of same
CN103720530A (en) * 2014-01-10 2014-04-16 曹莹莹 Placing and recovering device of non-memory alloy esophageal stent
CN103750929A (en) * 2014-01-10 2014-04-30 曹莹莹 Nickel-titanium memory alloy esophageal stent placing and recycling device used in X-ray perspective
CN203970621U (en) * 2014-06-13 2014-12-03 祖茂衡 Recyclable postcava bracket

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
秦定文: "自制下腔静脉支架式滤器安全性的动物实验研究", 《介入放射学杂志》, vol. 17, no. 5, 31 May 2008 (2008-05-31), pages 349 - 352 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105943213A (en) * 2015-12-23 2016-09-21 微创心脉医疗科技(上海)有限公司 Stent delivering system and use method thereof
CN105943211A (en) * 2015-12-23 2016-09-21 微创心脉医疗科技(上海)有限公司 Stent delivering system and back releasing assembly thereof

Also Published As

Publication number Publication date Type
CN104042373B (en) 2016-01-27 grant

Similar Documents

Publication Publication Date Title
US6099559A (en) Endoluminal support assembly with capped ends
US8414635B2 (en) Plain woven stents
US6652554B1 (en) Instrument for thromboembolic protection
US20060287701A1 (en) Retrievable device having a reticulation portion with staggered struts
US20060025844A1 (en) Reduced deployment force delivery device
US6955685B2 (en) Expandable stent with radiopaque markers and stent delivery system
US20110190862A1 (en) Stent delivery system
US6475236B1 (en) Non-foreshortening intraluminal prosthesis
US20050049675A1 (en) Medical devices and related methods
US7766934B2 (en) Embolic protection device with an integral basket and bag
US7025779B2 (en) Endoluminal device having enhanced affixation characteristics
US6716238B2 (en) Stent with detachable tethers and method of using same
US7850708B2 (en) Embolic protection device having a reticulated body with staggered struts
US20090198269A1 (en) Device for the Removal of Thrombi From Blood Vessels
US20070055365A1 (en) Stent with integrated filter
US20100087913A1 (en) Temporary, Repositionable Or Retrievable Intraluminal Devices
US20050182441A1 (en) Embolic filtering devices for bifurcated vessels
US6932837B2 (en) Repositionable and recapturable vascular stent/graft
US6258115B1 (en) Bifurcated stent and distal protection system
US20050154447A1 (en) Ostium stent system
US20070203559A1 (en) Device For Rechanneling A Cavity, Organ Path Or Vessel
US20100161027A1 (en) Stent and stent-graft having one or more conformance struts
US5591230A (en) Radially expandable stent
US20100179633A1 (en) Tissue Penetration Device and Method
US20070100372A1 (en) Embolic protection device having a filter

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C14 Grant of patent or utility model