目前，血栓症作为常见的心脑血管疾病之一，时刻威胁着人们的生命，作为血栓症的治疗方法，通常是利用血栓溶解剂的药物治疗，这种治疗方法的缺陷十分明显，不能直达患处，且需要定时长期服药，对患者的肝肾功能都有严重的损害。At present, thrombosis, as one of the common cardiovascular and cerebrovascular diseases, threatens people's lives at all times. As a treatment method for thrombosis, it usually uses thrombolytic agent drug treatment. The defect of this treatment method is very obvious, and it cannot directly reach the affected area. , and requires regular and long-term medication, which has serious damage to the liver and kidney functions of the patient.

发明内容Contents of the invention

本发明的目的是：提供血栓捕获器，用以克服上述现有技术中的缺陷。The object of the present invention is to provide a thrombus catcher to overcome the above-mentioned defects in the prior art.

本发明所采用的技术解决方案是：The technical solution adopted in the present invention is:

本发明提供一种血栓捕获器，其特殊之处在于：包括由内向外依次套装的内鞘管、中鞘管和外鞘管，所述内鞘管内设置导丝，外鞘管与中鞘管之间设置第一捕获网，所述第一捕获网与中鞘管外壁固定，中鞘管与内鞘管之间设置第二捕获网，所述第二捕获网与导丝固定。The present invention provides a thrombus capture device, which is special in that it includes an inner sheath tube, a middle sheath tube and an outer sheath tube that are sequentially set from inside to outside, a guide wire is arranged in the inner sheath tube, and the outer sheath tube and the middle sheath tube A first capture net is arranged between them, and the first capture net is fixed to the outer wall of the middle sheath tube, and a second capture net is set between the middle sheath tube and the inner sheath tube, and the second capture net is fixed to the guide wire.

进一步的，所述第一捕获网呈漏斗状，第一捕获网的网底与中鞘管外壁固定。Further, the first capture net is funnel-shaped, and the bottom of the first capture net is fixed to the outer wall of the middle sheath.

进一步的，所述第二捕获网呈漏斗状，第二捕获网的网口通过限位丝与内鞘管外壁固定，第二捕获网的网底与导丝固定。Further, the second capture net is funnel-shaped, the opening of the second capture net is fixed to the outer wall of the inner sheath by a limiting wire, and the bottom of the second capture net is fixed to the guide wire.

进一步的，所述第一捕获网和第二捕获网上设置多根加固丝。Further, a plurality of reinforcement wires are set on the first capture net and the second capture net.

进一步的，所述第一捕获网的网口与第二捕获网的网口相对布置。Further, the network port of the first capture net is arranged opposite to the network port of the second capture net.

进一步的，所述导丝一端为水滴形结构。Further, one end of the guide wire has a drop-shaped structure.

进一步的，所述网口采用医用硅胶制成。Further, the mesh port is made of medical silicone.

进一步的，所述内鞘管、中鞘管、外鞘管和导丝采用记忆金属制成。Further, the inner sheath, middle sheath, outer sheath and guide wire are made of memory metal.

进一步的，所述网口的直径为5-20mm。Further, the diameter of the mesh opening is 5-20mm.

本发明的有益效果是：本技术方案中，利用捕获网收集血液中的血栓和杂质碎片，直接作用于患处，安全高效。The beneficial effects of the present invention are: in the technical proposal, the thrombus and impurity fragments in the blood are collected by the catch net, and directly act on the affected part, which is safe and efficient.

附图说明Description of drawings

图1是本实施例提供的结构示意图；Fig. 1 is a schematic structural diagram provided by the present embodiment;

图2是本实施例提供的工作状态示意图；Fig. 2 is a schematic view of the working state provided by the present embodiment;

图中，1-内鞘管、2-中鞘管、3-外鞘管、4-导丝、5-第一捕获网、6-第二捕获网、7-限位丝、8-加固丝、9-水滴形结构。In the figure, 1-inner sheath, 2-middle sheath, 3-outer sheath, 4-guide wire, 5-first capture net, 6-second capture net, 7-limiting wire, 8-reinforcing wire , 9-drop-shaped structure.

具体实施方式Detailed ways

下面将结合本发明的附图，对本发明的技术方案进行清楚、完整地描述。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

如图1-图2所示，本实施例提供一种血栓捕获器，包括由内向外依次套装的内鞘管1、中鞘管2和外鞘管3，内鞘管1内设置导丝4，外鞘管3与中鞘管2之间设置第一捕获网5，第一捕获网5与中鞘管2外壁固定，中鞘管2与内鞘管1之间设置第二捕获网6，第二捕获网6与导丝4固定。As shown in Figures 1-2, this embodiment provides a thrombus capture device, which includes an inner sheath 1, a middle sheath 2, and an outer sheath 3 that are sequentially set from inside to outside, and a guide wire 4 is arranged inside the inner sheath 1. A first capture net 5 is set between the outer sheath 3 and the middle sheath 2, the first capture net 5 is fixed to the outer wall of the middle sheath 2, and a second capture net 6 is set between the middle sheath 2 and the inner sheath 1, The second capture net 6 is fixed with the guide wire 4 .

优选的，第一捕获网5呈漏斗状，第一捕获网5的网底与中鞘管2外壁固定。Preferably, the first capture net 5 is funnel-shaped, and the bottom of the first capture net 5 is fixed to the outer wall of the middle sheath tube 2 .

优选的，第二捕获网6呈漏斗状，第二捕获网6的网口通过限位丝7与内鞘管1外壁固定，第二捕获网6的网底与导丝4固定。Preferably, the second capture net 6 is funnel-shaped, the opening of the second capture net 6 is fixed to the outer wall of the inner sheath 1 through the limit wire 7 , and the bottom of the second capture net 6 is fixed to the guide wire 4 .

优选的，第一捕获网5和第二捕获网6上设置多根加固丝8。Preferably, multiple reinforcing wires 8 are arranged on the first catching net 5 and the second catching net 6 .

优选的，第一捕获网5的网口与第二捕获网6的网口相对布置。Preferably, the net port of the first capture net 5 is arranged opposite to the net port of the second capture net 6 .

优选的，导丝4一端为水滴形结构9。Preferably, one end of the guide wire 4 is a drop-shaped structure 9 .

优选的，网口采用医用硅胶制成。Preferably, the mesh port is made of medical silicone.

优选的，内鞘管1、中鞘管2、外鞘管3和导丝4采用记忆金属制成。Preferably, the inner sheath 1 , the middle sheath 2 , the outer sheath 3 and the guide wire 4 are made of memory metal.

优选的，网口的直径为5-20mm。Preferably, the diameter of the mesh opening is 5-20mm.

工作原理如下：在血管造影的辅助下，将血栓捕获器通过穿刺置入患者血管，通过旋转、抽拉外鞘管，使第一捕获网和第二捕获网置于目标区域内，拉动外鞘管，释放第一捕获网，推入导丝，释放第二捕获网，收集血液中的血栓和碎片，静置一段时间，推入外鞘管，回收第一捕获网，拉动内鞘管，回收第二捕获网，取出血栓捕获器即可。The working principle is as follows: with the assistance of angiography, the thrombus catcher is inserted into the blood vessel of the patient through puncture, and the outer sheath tube is rotated and pulled to place the first capture net and the second capture net in the target area, and the outer sheath is pulled Tube, release the first capture net, push in the guide wire, release the second capture net, collect thrombus and debris in the blood, let it stand for a while, push the outer sheath tube, retract the first capture net, pull the inner sheath tube, and recover For the second capture net, just take out the thrombus capture device.

其中，导丝一端为水滴形结构，防止在旋转抽拉的过程中，由于用力不当造成的血管壁损伤，网口采用医用硅胶制成，具有良好的生物相容性和延展性，能够适应血管内部复杂的环境，此外，内鞘管、中鞘管、外鞘管和导丝采用记忆金属制成，弯曲量大，塑性高，便于血栓捕获器在静脉血管内移动。Among them, one end of the guide wire has a drop-shaped structure to prevent damage to the blood vessel wall caused by improper force during the rotation and pulling process. The mesh port is made of medical silicone, which has good biocompatibility and ductility, and can adapt to blood vessels. The internal environment is complicated. In addition, the inner sheath, middle sheath, outer sheath and guide wire are made of memory metal, which has a large amount of bending and high plasticity, which is convenient for the thrombus catcher to move in the vein.

以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims

Translated fromChinese

1.血栓捕获器，其特征在于：包括由内向外依次套装的内鞘管、中鞘管和外鞘管，所述内鞘管内设置导丝，外鞘管与中鞘管之间设置第一捕获网，所述第一捕获网与中鞘管外壁固定，中鞘管与内鞘管之间设置第二捕获网，所述第二捕获网与导丝固定。1. The thrombus catcher is characterized in that: it comprises an inner sheath tube, a middle sheath tube and an outer sheath tube which are sequentially set from inside to outside, a guide wire is arranged in the inner sheath tube, and a first A capture net, the first capture net is fixed to the outer wall of the middle sheath tube, a second capture net is arranged between the middle sheath tube and the inner sheath tube, and the second capture net is fixed to the guide wire.

2.根据权利要求1所述的血栓捕获器，其特征在于：所述第一捕获网呈漏斗状，第一捕获网的网底与中鞘管外壁固定。2 . The thrombus trap according to claim 1 , wherein the first capture net is funnel-shaped, and the bottom of the first capture net is fixed to the outer wall of the middle sheath. 3 .

3.根据权利要求1所述的血栓捕获器，其特征在于：所述第二捕获网呈漏斗状，第二捕获网的网口通过限位丝与内鞘管外壁固定，第二捕获网的网底与导丝固定。3. The thrombus capture device according to claim 1, characterized in that: the second capture net is funnel-shaped, the opening of the second capture net is fixed to the outer wall of the inner sheath by a limiting wire, and the second capture net is fixed to the outer wall of the inner sheath. The bottom of the mesh is fixed with the guide wire.

4.根据权利要求2或3所述的血栓捕获器，其特征在于：所述第一捕获网和第二捕获网上设置多根加固丝。4. The thrombus trap according to claim 2 or 3, characterized in that: a plurality of reinforcing wires are arranged on the first capture net and the second capture net.

5.根据权利要求4所述的血栓捕获器，其特征在于：所述第一捕获网的网口与第二捕获网的网口相对布置。5. The thrombus trap according to claim 4, characterized in that: the opening of the first capturing net is arranged opposite to the opening of the second capturing net.

6.根据权利要求5所述的血栓捕获器，其特征在于：所述导丝一端为水滴形结构。6. The thrombus catcher according to claim 5, wherein one end of the guide wire is in a drop-shaped structure.

7.根据权利要求6所述的血栓捕获器，其特征在于：所述网口采用医用硅胶制成。7. The thrombus catcher according to claim 6, wherein the mesh port is made of medical silica gel.

8.根据权利要求7所述的血栓捕获器，其特征在于：所述内鞘管、中鞘管、外鞘管和导丝采用记忆金属制成。8. The thrombus trap according to claim 7, wherein the inner sheath, the middle sheath, the outer sheath and the guide wire are made of memory metal.

9.根据权利要求8所述的血栓捕获器，其特征在于：所述网口的直径为5-20mm。9. The thrombus catcher according to claim 8, characterized in that: the diameter of the mesh opening is 5-20 mm.