CN116269647A

Movatterモバイル変換

Info

Publication number: CN116269647A
Application number: CN202310547020.XA
Authority: CN
Inventors: 孙宏轩; 郭磊; 戴辰晨; 余盛达; 王靖源; 左廷涛
Original assignee: Lepu Medical Technology Beijing Co Ltd
Current assignee: Lepu Medical Technology Beijing Co Ltd
Priority date: 2023-05-16
Filing date: 2023-05-16
Publication date: 2023-06-23
Anticipated expiration: 2043-05-16
Also published as: CN116269647B

Abstract

Translated fromChinese

本发明涉及医疗器械技术领域，具体涉及一种泵头捕捉器、血栓吸除系统及其使用方法。所述泵头捕捉器包括：连接主体，具有位于轴心的平面空腔；固定座，沿轴向开设有捕捉口；固定座包括若干沿径向设置且与捕捉口连通的滑轨，滑轨内设置有机械爪，机械爪的尾端与驱动弹簧相连，机械爪的首端适于与泵活塞头的弧形肋相卡接；若干机械爪在驱动弹簧的弹力作用下朝轴心运动和/或保持朝轴心运动的趋势以共同捕捉泵活塞头。本发明提供的泵头捕捉器，抗压能力和抗疲劳能力更可靠，同时在X，Y向可以补偿泵活塞头对位不良，且可以补偿泵活塞头相对Z向的小角度倾斜不良，不仅降低了对主机的对位精度要求，而且降低了对导管泵的寿命折损。

The invention relates to the technical field of medical devices, in particular to a pump head catcher, a thrombus suction system and a use method thereof. The pump head catcher includes: a connecting body with a planar cavity located at the center of the axis; a fixed seat with a catch port in the axial direction; There are mechanical claws inside, the tail end of the mechanical claws is connected with the drive spring, and the head end of the mechanical claws is suitable for engaging with the arc-shaped ribs of the pump piston head; several mechanical claws move toward the axis under the elastic force of the drive spring and /or maintain a tendency to move towards the axis to co-capture the pump piston head. The pump head catcher provided by the present invention has more reliable pressure resistance and anti-fatigue ability, and at the same time, it can compensate for the poor alignment of the pump piston head in the X and Y directions, and can compensate for the small angle inclination of the pump piston head relative to the Z direction, not only The alignment accuracy requirements for the host machine are reduced, and the service life loss for the catheter pump is reduced.

Description

Translated fromChinese

一种泵头捕捉器、血栓吸除系统及其使用方法Pump head catcher, thrombus suction system and method of use thereof

技术领域technical field

本发明涉及医疗器械技术领域，具体涉及一种泵头捕捉器、血栓吸除系统及其使用方法。The invention relates to the technical field of medical devices, in particular to a pump head catcher, a thrombus suction system and a use method thereof.

背景技术Background technique

血栓形成和栓塞是大多数心脑血管疾病如急性心肌梗塞、缺血性脑卒中、肺动脉栓塞等的病理基础，也是造成死亡和肢体残疾的首要原因。经导管介入治疗是当前临床血栓性疾病的主要治疗方法之一，包括导管取栓术和局部药物溶栓。其中，机械取栓联合全身和局部注射溶栓药可以提高梗阻血管的早期再通率、改善预后。因此，经导管介入治疗逐渐获得了临床越来越多的认可，成为了血栓性疾病治疗的一个良好选择。Thrombosis and embolism are the pathological basis of most cardiovascular and cerebrovascular diseases, such as acute myocardial infarction, ischemic stroke, pulmonary embolism, etc., and are also the primary cause of death and physical disability. Transcatheter interventional therapy is one of the main treatment methods for clinical thrombotic diseases, including catheter thrombectomy and local drug thrombolysis. Among them, mechanical thrombectomy combined with systemic and local injection of thrombolytic drugs can increase the early recanalization rate of obstructed vessels and improve the prognosis. Therefore, transcatheter interventional therapy has gradually gained more and more clinical approval, and has become a good choice for the treatment of thrombotic diseases.

现有的血栓去除系统的泵头捕捉器，如公布号为US9161765B2所示，公开了一种簧片棘爪式泵头捕捉器，通过三爪钣金簧片的弹性力装夹泵头，成本低廉，容易加工。但是，由于抽吸泵的主要运动是直线快速往返的活塞运动，如果抽吸泵出现故障，如进水口堵塞，或者进出水口均堵塞的情况，泵腔体有可能处于负压，甚至被向上运动的活塞泵头抽成一定程度的真空状态。这个时候对于泵头机械爪的力就有可能超过簧片的强度极限，导致簧片失效。其次，泵头捕捉器和泵头装配很容易导致二者不同轴，也会对单个爪簧片造成局部负载过大，而另外两个负载却很小，这种对中不良造成的负载不均匀，会导致簧片更容易发生失效。而且，这种对中不良也有一定可能导致抽吸泵头捕捉失败，还可能损坏泵头。The existing pump head catcher of the thrombus removal system, as shown in the publication number US9161765B2, discloses a reed pawl type pump head catcher, the pump head is clamped by the elastic force of the three-claw sheet metal reed, and the cost is low. Inexpensive and easy to process. However, since the main movement of the suction pump is a linear and fast reciprocating piston movement, if the suction pump fails, such as the water inlet is blocked, or the water inlet and outlet are both blocked, the pump chamber may be under negative pressure, or even be moved upwards. The piston pump head is pumped into a certain degree of vacuum state. At this time, the force on the mechanical claw of the pump head may exceed the strength limit of the reed, causing the reed to fail. Secondly, the assembly of the pump head catcher and the pump head can easily lead to misalignment between the two, and it will also cause excessive local load on a single claw reed, while the other two loads are small, and the load caused by this misalignment is not large. Uniformity will cause the reed to be more prone to failure. Moreover, this misalignment may also cause the suction pump head to fail to capture, and may also damage the pump head.

因此，现有的簧片棘爪式泵头捕捉器存在较大疲劳失效的风险，如果不注意维护，在手术期间出现故障，将会导致手术中断。Therefore, there is a greater risk of fatigue failure in the existing reed pawl type pump head catcher, and if maintenance is not taken care of, failure occurs during the operation, which will lead to interruption of the operation.

发明内容Contents of the invention

因此，本发明要解决的技术问题在于克服现有技术中现有的簧片棘爪式泵头捕捉器存在较大疲劳失效的风险的缺陷，从而提供一种降低疲劳失效的风险的泵头捕捉器。Therefore, the technical problem to be solved by the present invention is to overcome the defect that the existing reed pawl pump head catcher in the prior art has a relatively high risk of fatigue failure, thereby providing a pump head catcher that reduces the risk of fatigue failure. device.

本发明要解决的另外一个技术问题在于克服现有技术中现有的簧片棘爪式泵头捕捉器存在较大疲劳失效的风险的缺陷，从而提供一种降低疲劳失效的风险的血栓吸除系统。Another technical problem to be solved by the present invention is to overcome the defect that the existing reed pawl pump head catcher in the prior art has a relatively high risk of fatigue failure, so as to provide a thrombus suction device that reduces the risk of fatigue failure. system.

为解决上述技术问题，本发明提供的泵头捕捉器，包括：In order to solve the above technical problems, the pump head catcher provided by the present invention includes:

连接主体，具有位于轴心的平面空腔，所述平面空腔适于容置泵活塞头；The connecting body has a planar cavity located at the center of the axis, and the planar cavity is suitable for accommodating the pump piston head;

固定座，设置于所述连接主体靠近泵活塞头的一端；所述固定座沿轴向开设有捕捉口，所述捕捉口适于引导所述泵活塞头进入所述平面空腔；The fixing seat is arranged at one end of the connecting body close to the pump piston head; the fixing seat is provided with a catch port along the axial direction, and the catch port is suitable for guiding the pump piston head into the plane cavity;

所述固定座包括若干沿径向设置且与所述捕捉口连通的滑轨，所述滑轨内设置有机械爪，所述机械爪的尾端与驱动弹簧相连，所述机械爪的首端适于与泵活塞头的弧形肋相卡接；若干所述机械爪在所述驱动弹簧的弹力作用下朝轴心运动和/或保持朝轴心运动的趋势以共同捕捉泵活塞头。The fixed seat includes several slide rails arranged in the radial direction and communicated with the catch port, the slide rails are provided with mechanical claws, the tail ends of the mechanical claws are connected with the driving spring, and the head ends of the mechanical claws It is suitable for clamping with the arc-shaped rib of the pump piston head; several mechanical claws move toward the axis and/or maintain a tendency to move toward the axis under the elastic force of the driving spring to jointly catch the pump piston head.

可选的，所述平面空腔的顶壁与泵活塞头之间形成轴向浮动间隙，以使泵活塞头沿Z向浮动于所述平面空腔内。Optionally, an axial floating gap is formed between the top wall of the plane cavity and the pump piston head, so that the pump piston head floats in the plane cavity along the Z direction.

可选的，所述平面空腔的顶壁与泵活塞头之间的轴向浮动间隙为H，H满足0.1mm≤H≤0.2mm。Optionally, the axial floating gap between the top wall of the planar cavity and the pump piston head is H, and H satisfies 0.1mm≤H≤0.2mm.

可选的，所述机械爪的首端与所述泵活塞头之间形成径向浮动间隙，所述径向浮动间隙为W，W满足0＜W≤0.8mm。Optionally, a radial floating gap is formed between the head end of the mechanical claw and the pump piston head, and the radial floating gap is W, and W satisfies 0<W≤0.8mm.

可选的，所述机械爪与所述弧形肋之间的搭接长度为T，T满足1.5W≤T≤2.5W。Optionally, the overlapping length between the mechanical claw and the arc-shaped rib is T, and T satisfies 1.5W≤T≤2.5W.

可选的，所述机械爪沿轴向靠近所述连接主体的一端设置有卡接面，所述卡接面适于与所述弧形肋的底面相抵接；Optionally, one end of the mechanical claw axially close to the connecting body is provided with a clamping surface, and the clamping surface is suitable for abutting against the bottom surface of the arc-shaped rib;

所述机械爪的首端设置有过渡面，所述过渡面与所述卡接面之间成锐角设置，所述过渡面适于引导泵活塞头沿轴向靠近所述连接主体运动。The first end of the mechanical claw is provided with a transition surface, and the transition surface is set at an acute angle with the clamping surface, and the transition surface is suitable for guiding the pump piston head to move axially close to the connecting body.

可选的，所述固定座包括：Optionally, the fixing seat includes:

底板，所述底板上开设有所述滑轨；a bottom plate, on which the slide rail is opened;

盖板，与所述底板沿轴向间隔设置，所述盖板与所述底板固定连接以将所述机械爪封装于所述滑轨内；A cover plate is axially spaced apart from the bottom plate, and the cover plate is fixedly connected to the bottom plate to encapsulate the mechanical claw in the slide rail;

侧盖，所述侧盖与所述盖板和/或所述底板固定连接，所述侧盖适于对所述驱动弹簧进行限位。A side cover, the side cover is fixedly connected with the cover plate and/or the bottom plate, and the side cover is suitable for limiting the driving spring.

可选的，所述机械爪包括限位部，所述盖板和/或所述底板靠近所述机械爪的一侧开设有限位槽，所述限位部滑动设置于所述限位槽内以对所述机械爪进行限位。Optionally, the mechanical claw includes a limiting part, a limiting groove is opened on a side of the cover plate and/or the bottom plate close to the mechanical claw, and the limiting part is slidably disposed in the limiting groove To limit the position of the mechanical claw.

本发明提供的血栓吸除系统，包括：The thrombus suction system provided by the present invention includes:

主机架；Main Frame;

所述主机架上沿Z向设置有导管泵运动单元，所述导管泵运动单元通过如上述所述的泵头捕捉器与泵活塞头相连接，所述泵活塞头设置于抽吸泵的一端；所述抽吸泵的另一端通过吸栓导管与蠕动泵相连接；The main frame is provided with a catheter pump movement unit along the Z direction, and the catheter pump movement unit is connected to the pump piston head through the pump head catcher as described above, and the pump piston head is arranged at one end of the suction pump ; The other end of the suction pump is connected with the peristaltic pump through the suction plug catheter;

所述主机架上沿Y向设置有导管台运动单元，适于带动所述抽吸泵和蠕动泵相对所述主机架沿Y向移动。The main frame is provided with a catheter table moving unit along the Y direction, which is suitable for driving the suction pump and the peristaltic pump to move relative to the main frame along the Y direction.

本发明还提供一种血栓吸除系统的使用方法，包括如下步骤：The present invention also provides a method for using the thrombus suction system, comprising the following steps:

S1、控制导管台运动单元带动抽吸泵和蠕动泵沿Y向远离导管泵运动单元，使得蠕动泵切换至打开状态；S1. Control the movement unit of the catheter table to drive the suction pump and the peristaltic pump away from the movement unit of the catheter pump along the Y direction, so that the peristaltic pump is switched to the open state;

S2、将抽吸泵安装固定于导管台运动单元上，并将吸栓导管置于夹持间隙内，控制所述导管台运动单元带动所述抽吸泵和所述蠕动泵沿Y向靠近所述导管泵运动单元，并使得蠕动泵切换至闭合状态；S2. Install and fix the suction pump on the moving unit of the catheter table, place the suction plug catheter in the clamping gap, and control the moving unit of the catheter table to drive the suction pump and the peristaltic pump to approach the moving unit along the Y direction. the catheter pump movement unit, and switch the peristaltic pump to a closed state;

S3、控制导管泵运动单元带动泵头捕捉器沿Z向靠近并捕捉泵活塞头；S3. Control the movement unit of the catheter pump to drive the pump head catcher to approach and catch the pump piston head along the Z direction;

S4、控制导管泵运动单元带动抽吸泵沿Z向高速往复直线运动；控制滚柱泵机构对吸栓导管进行节流。S4. Control the movement unit of the catheter pump to drive the suction pump to move in a high-speed reciprocating linear motion along the Z direction; control the roller pump mechanism to throttle the suction plug catheter.

本发明技术方案，具有如下优点：The technical solution of the present invention has the following advantages:

1.本发明提供的泵头捕捉器，所述连接主体通过设置平面空腔，从而使得泵活塞头沿Z向有一定的浮动空间；所述固定座通过设置滑轨，所述滑轨内设置有机械爪，所述机械爪的尾端与驱动弹簧相连，从而形成弹簧滑轨捕捉机构，与改进前的钣金工艺制作的三爪钣金簧片相比，所述弹簧滑轨捕捉机构的抗压能力和抗疲劳能力更可靠，同时所述弹簧滑轨捕捉机构搭配所述平面空腔在X，Y向可以补偿泵活塞头对位不良，且可以补偿泵活塞头相对Z向的小角度倾斜不良，不仅降低了对主机的对位精度要求，而且降低了对导管泵的寿命折损。1. The pump head catcher provided by the present invention, the connecting body is provided with a plane cavity, so that the pump piston head has a certain floating space along the Z direction; the fixed seat is provided with a slide rail, and the slide rail is set There is a mechanical claw, and the tail end of the mechanical claw is connected with the driving spring to form a spring slide rail catch mechanism. Compared with the three-claw sheet metal reed made by the sheet metal process before improvement, the spring slide rail catch mechanism The compression resistance and fatigue resistance are more reliable, and at the same time, the spring slide rail catch mechanism and the plane cavity can compensate for the misalignment of the pump piston head in the X and Y directions, and can compensate the small angle of the pump piston head relative to the Z direction Poor inclination not only reduces the alignment accuracy requirements of the main machine, but also reduces the life loss of the catheter pump.

2.本发明提供的泵头捕捉器，所述平面空腔的顶壁与泵活塞头之间预设有轴向浮动间隙H，以使所述泵活塞头沿Z向浮动于所述平面空腔内，从而使得所述泵头捕捉器能够顺利捕捉所述泵活塞头，保证捕捉动作更可靠；所述平面空腔的顶壁与泵活塞头之间的轴向浮动间隙为H，H满足0.1mm≤H≤0.2mm，从而既能够使得所述机械爪顺利弹出完成对所述泵活塞头的捕捉，又能够限制所述泵活塞头在所述平面空腔内过大的轴向移动，增强所述泵头捕捉器的平稳性。2. In the pump head catcher provided by the present invention, an axial floating gap H is preset between the top wall of the plane cavity and the pump piston head, so that the pump piston head floats in the plane cavity along the Z direction. cavity, so that the pump head catcher can smoothly capture the pump piston head, ensuring a more reliable capture action; the axial floating gap between the top wall of the planar cavity and the pump piston head is H, and H satisfies 0.1mm≤H≤0.2mm, so that the mechanical claw can be ejected smoothly to capture the pump piston head, and the excessive axial movement of the pump piston head in the plane cavity can be restricted. Enhances the stability of the pump head catcher.

3.本发明提供的泵头捕捉器，所述机械爪的首端与所述泵活塞头之间形成径向浮动间隙，所述径向浮动间隙为W，W满足0＜W≤0.8mm，从而搭配所述平面空腔补偿所述泵活塞头在X向和/或Y向上的偏位不良，保证所述泵活塞头所属的泵体与泵座之间的垂直度；所述机械爪与所述弧形肋之间的搭接长度为T，T满足1.5W≤T≤2.5W，在补偿所述泵活塞头在X向和/或Y向上的偏位不良的同时，不仅能够避免所述泵活塞头因偏位与所述机械爪产生脱离的风险，提高捕捉的稳定性，而且能够优化所述泵活塞头与所述泵头捕捉器的结构，提高整机结构和性能的协调性。3. In the pump head catcher provided by the present invention, a radial floating gap is formed between the head end of the mechanical claw and the pump piston head, and the radial floating gap is W, and W satisfies 0<W≤0.8mm, In this way, the planar cavity can be used to compensate the misalignment of the pump piston head in the X direction and/or Y direction, so as to ensure the verticality between the pump body and the pump seat to which the pump piston head belongs; the mechanical claw and The overlapping length between the arc-shaped ribs is T, and T satisfies 1.5W≤T≤2.5W. While compensating for the misalignment of the pump piston head in the X direction and/or Y direction, it can not only avoid all The risk of detachment of the pump piston head from the mechanical claw due to deviation can improve the stability of capture, and can optimize the structure of the pump piston head and the pump head catcher to improve the coordination of the structure and performance of the whole machine .

附图说明Description of drawings

为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

图1为本发明泵头捕捉器捕捉完成泵活塞头的局部剖面结构示意图；Fig. 1 is the local cross-sectional structural schematic diagram of the pump piston head captured by the pump head catcher of the present invention;

图2为图1中A处的放大图；Fig. 2 is the enlarged view of place A in Fig. 1;

图3为图1中B处的放大图；Fig. 3 is the enlarged view of place B in Fig. 1;

图4为本发明泵头捕捉器捕捉泵活塞头的工作原理示意图；Fig. 4 is a schematic diagram of the working principle of the pump head catcher catching the pump piston head of the present invention;

图5为本发明泵头捕捉器的机械爪与固定座的一种限位关系示意图；Fig. 5 is a schematic diagram of a limiting relationship between the mechanical claw and the fixing seat of the pump head catcher of the present invention;

图6为本发明泵头捕捉器的机械爪与固定座的另一种限位关系示意图；Fig. 6 is a schematic diagram of another limit relationship between the mechanical claw and the fixing seat of the pump head catcher of the present invention;

图7为本发明血栓吸除系统的整机结构示意图；Fig. 7 is a schematic diagram of the overall structure of the thrombus suction system of the present invention;

图8为图7中C处的放大图；Figure 8 is an enlarged view at C in Figure 7;

图9为本发明血栓吸除系统的蠕动泵在闭合状态下的结构示意图；9 is a schematic structural view of the peristaltic pump in the closed state of the thrombus suction system of the present invention;

图10为图9中D处的局部剖放大图；Fig. 10 is a partially cut-away enlarged view at D in Fig. 9;

图11为本发明血栓吸除系统的蠕动泵在打开状态下的结构示意图；Fig. 11 is a schematic structural view of the peristaltic pump in the open state of the thrombus suction system of the present invention;

图12为图11中E处的局部剖放大图；Fig. 12 is a partially cut-away enlarged view at E in Fig. 11;

图13为本发明血栓吸除系统的蠕动泵的爆炸结构示意图；13 is a schematic diagram of the exploded structure of the peristaltic pump of the thrombus suction system of the present invention;

图14为本发明血栓吸除系统的蠕动泵的滚柱泵机构的剖面结构示意图；14 is a schematic cross-sectional structure diagram of the roller pump mechanism of the peristaltic pump of the thrombus suction system of the present invention;

图15为图13中F处的放大图。FIG. 15 is an enlarged view at point F in FIG. 13 .

附图标记说明：Explanation of reference signs:

110、连接主体；1101、平面空腔；110. Connection body; 1101. Plane cavity;

120、固定座；1201、捕捉口；1202、滑轨；1203、限位槽；121、底板；122、盖板；123、侧盖；120, fixed seat; 1201, catch port; 1202, slide rail; 1203, limit groove; 121, bottom plate; 122, cover plate; 123, side cover;

130、机械爪；131、卡接面；132、过渡面；133、限位部；130, mechanical claw; 131, clamping surface; 132, transition surface; 133, limit part;

140、驱动弹簧；140, drive spring;

20、安装架；20. Mounting frame;

21、滚柱泵机构；211、电机；212、固定盘；213、节流滚柱；21. Roller pump mechanism; 211. Motor; 212. Fixed plate; 213. Throttle roller;

22、夹持结构；221、滑动部；2211、第一轴孔；2212、第二轴孔；222、夹持部；223、吸栓导管；22. Clamping structure; 221. Sliding part; 2211. First shaft hole; 2212. Second shaft hole; 222. Clamping part; 223. Suction plug catheter;

23、弹性导柱机构；231、第一轴杆；232、第二轴杆；233、弹簧；234、滑动轴承；23. Elastic guide post mechanism; 231. First shaft; 232. Second shaft; 233. Spring; 234. Sliding bearing;

24、定位结构；24. Positioning structure;

30、导管台运动单元；30. Catheter table motion unit;

31、抽吸泵；311、泵活塞头；3111、弧形肋；31. Suction pump; 311. Pump piston head; 3111. Arc rib;

40、导管泵运动单元；40. Catheter pump movement unit;

50、主机架；50. Main frame;

51、斜面结构；511、斜坡驱动导轨；5111、斜坡远止端；5112、斜坡近止端；5113、斜坡过渡段；512、滚轮机构；513、固定轴。51. Slope structure; 511. Slope driving guide rail; 5111. Far end of slope; 5112. Near end of slope; 5113. Slope transition section; 512. Roller mechanism; 513. Fixed shaft.

具体实施方式Detailed ways

下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做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. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“垂直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。In describing the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be configured in a specific orientation. and operation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

此外，下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

实施例一Embodiment one

结合图1-图6所示，本实施例所提供的泵头捕捉器，包括：As shown in Figures 1-6, the pump head catcher provided in this embodiment includes:

连接主体110，具有位于轴心的平面空腔1101，所述平面空腔1101适于容置泵活塞头311；The connectingbody 110 has aplanar cavity 1101 located at the center of the axis, and theplanar cavity 1101 is suitable for accommodating thepump piston head 311;

固定座120，设置于所述连接主体110靠近泵活塞头311的一端；所述固定座120沿轴向开设有捕捉口1201，所述捕捉口1201适于引导所述泵活塞头311进入所述平面空腔1101；The fixingseat 120 is arranged at one end of the connectingbody 110 close to thepump piston head 311; the fixingseat 120 is provided with acatch port 1201 along the axial direction, and thecatch port 1201 is suitable for guiding thepump piston head 311 into theplanar cavity 1101;

所述固定座120包括若干沿径向设置且与所述捕捉口1201连通的滑轨1202，所述滑轨1202内设置有机械爪130，所述机械爪130的尾端与驱动弹簧140相连，所述机械爪130的首端适于与泵活塞头311的弧形肋3111相卡接；若干所述机械爪130在所述驱动弹簧140的弹力作用下朝轴心运动和/或保持朝轴心运动的趋势以共同捕捉泵活塞头311。The fixingseat 120 includes a plurality of slidingrails 1202 arranged in the radial direction and communicating with the catchingport 1201 , amechanical claw 130 is arranged inside the slidingrail 1202 , and the tail end of themechanical claw 130 is connected with a drivingspring 140 , The first end of themechanical claw 130 is suitable for engaging with the arc-shapedrib 3111 of thepump piston head 311; severalmechanical claws 130 move toward the axis and/or keep toward the axis under the elastic force of the drivingspring 140 The tendency of the heart motion to catch thepump piston head 311 together.

需要说明的是，本发明泵头捕捉器的材料可以是钢，铝等常用金属，也可以是ABS,尼龙等常规塑胶材料。在具体的实施过程中，所述泵头捕捉器的动作可以为直线下降捕捉，也可以为摆动捕捉，还可以为转动下降捕捉等，可以根据实际使用情况调整，不仅限于本实施例中所述的情况。It should be noted that the material of the pump head catcher of the present invention can be common metals such as steel and aluminum, and can also be conventional plastic materials such as ABS and nylon. In the specific implementation process, the action of the pump head catcher can be a straight-line drop catch, a swing catch, or a rotation fall catch, etc., which can be adjusted according to actual usage conditions, and are not limited to those described in this embodiment. Case.

可选的，所述滑轨1202和所述机械爪130均通过机加工制作而成。Optionally, both theslide rail 1202 and themechanical claw 130 are made by machining.

可选的，所述固定座120包括三个沿径向设置的滑轨1202，每个所述滑轨1202内设置有机械爪130，每个所述机械爪130的尾端与驱动弹簧140相连，从而形成三爪弹簧滑轨捕捉机构，在工作过程中，三个所述机械爪130分别在对应的所述驱动弹簧140的弹力作用下朝轴心运动和/或保持朝轴心运动的趋势以共同捕捉泵活塞头311。Optionally, the fixedbase 120 includes three slidingrails 1202 arranged in the radial direction, each of the slidingrails 1202 is provided with amechanical claw 130 , and the tail end of each of themechanical claws 130 is connected with a drivingspring 140 , so as to form a three-claw spring slide rail catch mechanism. During the working process, the threemechanical claws 130 move toward the axis and/or maintain a tendency to move toward the axis under the elastic force of thecorresponding drive spring 140 To catch thepump piston head 311 together.

需要说明的是，改进前的簧片棘爪式泵头捕捉器通过三爪钣金簧片的弹性力装夹泵头，由于抽吸泵的主要运动是直线快速往返的活塞运动，如果抽吸泵出现故障，如进水口堵塞，或者进出水口均堵塞的情况，泵腔体有可能处于负压，甚至被向上运动的活塞泵头抽成一定程度的真空状态。这个时候对于泵头机械爪的力就有可能超过簧片的强度极限，导致簧片失效。本发明所提供的泵头捕捉器，机加工制作的所述滑轨1202和所述机械爪130的抗压能力和抗疲劳能力比钣金工艺制作的簧片更可靠，多次运行实测结果表明，本发明所提供的泵头捕捉器即使有超过系统压力3倍的过载也依然能够稳定工作；本发明泵头捕捉器通过设置滑轨1202及与其径向滑动连接的机械爪130，并在所述机械爪130的尾端设置驱动弹簧140，在抽吸泵出现故障，如进水口堵塞，或者进出水口均堵塞的情况下，能够使得滑轨1202和机械爪130承载抽吸泵的轴向活塞力，并将所述轴向活塞力转移至固定座120上，避免了所述驱动弹簧140直接承载所述轴向活塞力，有效降低了所述驱动弹簧140失效的风险，抗过载能力更强。It should be noted that the pre-improved reed pawl pump head catcher clamps the pump head through the elastic force of the three-claw sheet metal reed. If the pump fails, such as the water inlet is blocked, or both the water inlet and outlet are blocked, the pump cavity may be under negative pressure, and even be pumped into a certain degree of vacuum by the upward moving piston pump head. At this time, the force on the mechanical claw of the pump head may exceed the strength limit of the reed, causing the reed to fail. The pump head catcher provided by the present invention, the machinedslide rail 1202 and themechanical claw 130 are more reliable in compressive resistance and fatigue resistance than reeds made by sheet metal technology, and the actual measurement results of multiple operations show that , the pump head catcher provided by the present invention can still work stably even if there is an overload exceeding 3 times the system pressure; The tail end of themechanical claw 130 is provided with adrive spring 140. When the suction pump fails, such as the water inlet is blocked, or the water inlet and outlet are blocked, theslide rail 1202 and themechanical claw 130 can carry the axial piston of the suction pump. force, and transfer the axial piston force to the fixedseat 120, avoiding the direct bearing of the axial piston force by thedrive spring 140, effectively reducing the risk of failure of thedrive spring 140, and having stronger overload resistance .

需要说明的是，改进前的簧片棘爪式泵头捕捉器通过三爪钣金簧片的弹性力装夹泵头，泵头捕捉器和泵头装配很容易导致二者不同轴，也会对单个爪簧片造成局部负载过大，而另外两个负载却很小，这种对中不良造成的负载不均匀，会导致簧片更容易发生失效，这种对中不良也有一定可能导致抽吸泵头捕捉失败，还可能损坏泵头；而且，改进前的簧片棘爪式泵头捕捉器的球面腔对主机精度要求太高，更容易造成偏位，会给导管泵寿命带来风险。本发明所提供的泵头捕捉器，通过设置平面空腔1101，使得所述平面空腔1101的内壁与泵活塞头311之间留有一定间隙，从而Z向不会完全卡死泵活塞头311，从而能够让泵活塞头311更容易被捕捉到；通过设置滑轨1202和机械爪130，所述机械爪130的尾端与驱动弹簧140相连，从而形成弹簧滑轨捕捉机构；所述平面空腔1101在一定程度上能够补偿主机对中不良带来的问题，即使泵活塞头311和泵头捕捉器有一定程度的不同轴或者偏斜，所述弹簧滑轨捕捉机构在X，Y，Z三个方向上均留有一定余量，能够补偿这些同轴度或者偏斜带来的对中不良问题，可以保证三个所述机械爪130稳定的夹持住泵活塞头311，提高了捕捉的可靠性。It should be noted that the pre-improved reed pawl pump head catcher clamps the pump head through the elastic force of the three-claw sheet metal reed. It will cause excessive local load on a single claw reed, while the other two loads are small. The uneven load caused by this misalignment will make the reed more prone to failure. This misalignment may also cause Failure to capture the suction pump head may damage the pump head; moreover, the spherical cavity of the pre-improved reed pawl pump head catcher has too high a precision requirement on the host machine, which is more likely to cause deviation, which will shorten the service life of the catheter pump. risk. In the pump head catcher provided by the present invention, by setting theplane cavity 1101, there is a certain gap between the inner wall of theplane cavity 1101 and thepump piston head 311, so that the Z direction will not completely block thepump piston head 311 , so that thepump piston head 311 can be caught more easily; by setting theslide rail 1202 and themechanical claw 130, the tail end of themechanical claw 130 is connected with thedrive spring 140, thereby forming a spring slide rail catch mechanism; Thecavity 1101 can compensate the problems caused by the poor centering of the main machine to a certain extent. Even if thepump piston head 311 and the pump head catcher have a certain degree of misalignment or deflection, the spring slide rail catch mechanism is in X, Y, There is a certain margin in the three directions of Z, which can compensate for the misalignment problems caused by these coaxiality or deflection, and can ensure that the threemechanical claws 130 can hold thepump piston head 311 stably, improving the capture reliability.

本实施例中，所述连接主体110通过设置平面空腔1101，从而使得泵活塞头311沿Z向有一定的浮动空间；所述固定座120通过设置滑轨1202，所述滑轨1202内设置有机械爪130，所述机械爪130的尾端与驱动弹簧140相连，从而形成弹簧滑轨捕捉机构，与改进前的钣金工艺制作的三爪钣金簧片相比，所述弹簧滑轨捕捉机构的抗压能力和抗疲劳能力更可靠，同时所述弹簧滑轨捕捉机构搭配所述平面空腔1101在X，Y向可以补偿泵活塞头对位不良，且可以补偿泵活塞头相对Z向的小角度倾斜不良，不仅降低了对主机的对位精度要求，而且降低了对导管泵的寿命折损。In this embodiment, the connectingbody 110 is provided with aplane cavity 1101 so that thepump piston head 311 has a certain floating space along the Z direction; There is amechanical claw 130, and the tail end of themechanical claw 130 is connected with thedrive spring 140, thereby forming a spring slide rail catch mechanism. Compared with the three-claw sheet metal reed made by the sheet metal process before improvement, the spring slide rail The compression resistance and anti-fatigue ability of the capture mechanism are more reliable. At the same time, the spring slide rail capture mechanism and theplane cavity 1101 can compensate for the misalignment of the pump piston head in the X and Y directions, and can compensate for the relative Z position of the pump piston head. Poor inclination at a small angle not only reduces the alignment accuracy requirements of the main machine, but also reduces the damage to the life of the catheter pump.

具体地，所述平面空腔1101的顶壁与泵活塞头311之间形成轴向浮动间隙，以使泵活塞头311沿Z向浮动于所述平面空腔1101内。Specifically, an axial floating gap is formed between the top wall of theplane cavity 1101 and thepump piston head 311 , so that thepump piston head 311 floats in theplane cavity 1101 along the Z direction.

具体地，所述平面空腔1101的顶壁与泵活塞头311之间的轴向浮动间隙为H，H满足0.1mm≤H≤0.2mm。Specifically, the axial floating gap between the top wall of theplanar cavity 1101 and thepump piston head 311 is H, and H satisfies 0.1mm≤H≤0.2mm.

需要说明的是，请参见图4所示，所述泵活塞头311靠近所述泵头捕捉器的一端设置有半球形顶部，所述泵活塞头311由所述半球形顶部向远离所述泵头捕捉器方向设置有弧形肋3111，所述弧形肋3111的直径大于所述半球形顶部的直径。请参见图1和图2所示，所述平面空腔1101的顶壁与泵活塞头311之间预设有轴向浮动间隙H，以使所述泵活塞头311沿Z向浮动于所述平面空腔1101内，从而使得所述泵头捕捉器能够顺利捕捉所述泵活塞头311，保证捕捉动作更可靠。如果所述轴向浮动间隙过小或者不留所述轴向浮动间隙，所述机械爪130在弹出时有可能被所述泵活塞头311的弧形肋3111的外周侧边沿挡住或者卡住，难以弹出，导致捕捉失败，因此，H需满足H≥0.1mm；如果所述轴向浮动间隙过大，所述机械爪130在弹出后虽然能够对所述泵活塞头311完成捕捉，但是容易使得所述泵活塞头311在所述平面空腔1101内存在过大的轴向移动的可能，影响所述泵头捕捉器的平稳性，因此，H需满足H≤0.2mm。请参见图2所示，所述平面空腔1101的顶壁与泵活塞头311之间的轴向浮动间隙为H，H满足0.1mm≤H≤0.2mm，从而既能够使得所述机械爪130顺利弹出完成对所述泵活塞头311的捕捉，又能够限制所述泵活塞头311在所述平面空腔1101内过大的轴向移动，增强所述泵头捕捉器的平稳性。It should be noted that, referring to FIG. 4, the end of thepump piston head 311 close to the pump head catcher is provided with a hemispherical top, and thepump piston head 311 moves away from the pump from the hemispherical top. An arc-shapedrib 3111 is arranged in the direction of the head catcher, and the diameter of the arc-shapedrib 3111 is larger than that of the hemispherical top. Please refer to Fig. 1 and Fig. 2, an axial floating gap H is preset between the top wall of theplane cavity 1101 and thepump piston head 311, so that thepump piston head 311 floats on the In theplane cavity 1101, the pump head catcher can smoothly catch thepump piston head 311, ensuring a more reliable catch action. If the axial floating gap is too small or the axial floating gap is not left, themechanical claw 130 may be blocked or stuck by the outer peripheral edge of the arc-shapedrib 3111 of thepump piston head 311 when it pops up, It is difficult to pop out, resulting in capture failure. Therefore, H needs to satisfy H≥0.1mm; if the axial floating gap is too large, although themechanical claw 130 can complete the capture of thepump piston head 311 after popping out, it is easy to make Thepump piston head 311 may move excessively in the axial direction in theplane cavity 1101, which affects the stability of the pump head catcher. Therefore, H needs to satisfy H≤0.2mm. Please refer to FIG. 2, the axial floating gap between the top wall of theplane cavity 1101 and thepump piston head 311 is H, and H satisfies 0.1mm≤H≤0.2mm, so that themechanical claw 130 can Smooth ejection completes the capture of thepump piston head 311 , and can limit excessive axial movement of thepump piston head 311 in theplanar cavity 1101 , enhancing the stability of the pump head catcher.

具体地，所述机械爪130的首端与所述泵活塞头311之间形成径向浮动间隙，所述径向浮动间隙为W，W满足0＜W≤0.8mm。Specifically, a radial floating gap is formed between the head end of themechanical claw 130 and thepump piston head 311, and the radial floating gap is W, and W satisfies 0<W≤0.8 mm.

需要说明的是，为了避免所述机械爪130装配精度及其限位位置的设置精度对所述泵活塞头311直接产生偏位影响，当所述机械爪130弹出并静止于限定位置后，所述机械爪130需避免与所述泵活塞头311直接径向抵接，因此，请参见图1和图3所示，所述机械爪130的首端与所述泵活塞头311之间预设有径向浮动间隙W，且W＞0，以使所述泵活塞头311能够在径向上有一定的浮动空间；但是，所述径向浮动间隙如果过大，容易导致所述泵活塞头311因偏位与所述机械爪130产生脱离的风险，因此，所述径向浮动间隙为W还应满足W≤0.8mm。请参见图3所示，所述机械爪130的首端与所述泵活塞头311之间形成径向浮动间隙，所述径向浮动间隙为W，W满足0＜W≤0.8mm，从而搭配所述平面空腔1101补偿所述泵活塞头311在X向和/或Y向上的偏位不良，保证所述泵活塞头311所属的泵体与泵座之间的垂直度。It should be noted that, in order to avoid the assembly accuracy of themechanical claw 130 and the setting accuracy of the limit position directly affecting the displacement of thepump piston head 311, when themechanical claw 130 pops up and rests at the limited position, the Themechanical claw 130 needs to avoid direct radial contact with thepump piston head 311. Therefore, as shown in FIG. 1 and FIG. There is a radial floating gap W, and W>0, so that thepump piston head 311 can have a certain floating space in the radial direction; however, if the radial floating gap is too large, it is easy to cause thepump piston head 311 Due to the risk of detachment from themechanical claw 130 caused by the deviation, the radial floating gap W should also satisfy W≤0.8mm. Please refer to FIG. 3 , a radial floating gap is formed between the head end of themechanical claw 130 and thepump piston head 311, and the radial floating gap is W, and W satisfies 0<W≤0.8mm, so as to match Theplanar cavity 1101 compensates for the misalignment of thepump piston head 311 in the X direction and/or the Y direction, ensuring the verticality between the pump body and the pump seat to which thepump piston head 311 belongs.

具体地，所述机械爪130与所述弧形肋3111之间的搭接长度为T，T满足1.5W≤T≤2.5W。Specifically, the overlapping length between themechanical claw 130 and the arc-shapedrib 3111 is T, and T satisfies 1.5W≤T≤2.5W.

需要说明的是，请参见图3所示，所述机械爪130与所述弧形肋3111之间的搭接长度如果过短，容易导致所述泵活塞头311因偏位与所述机械爪130产生脱离的风险，影响捕捉的稳定性；所述机械爪130与所述弧形肋3111之间的搭接长度如果过长，由于所述泵活塞头311需要满足沿Z向平滑进入所述泵头捕捉器的需求，因此所述弧形肋3111和所述机械爪130也需相应增大，这容易导致所述泵活塞头311与所述泵头捕捉器的结构总体过大，造成整机结构和性能失调。仍参见图3所示，在所述机械爪130的首端与所述泵活塞头311之间形成所述径向浮动间隙的基础上，所述机械爪130与所述弧形肋3111之间的搭接长度为T，T满足1.5W≤T≤2.5W，在补偿所述泵活塞头311在X向和/或Y向上的偏位不良的同时，不仅能够避免所述泵活塞头311因偏位与所述机械爪130产生脱离的风险，提高捕捉的稳定性，而且能够优化所述泵活塞头311与所述泵头捕捉器的结构，提高整机结构和性能的协调性。It should be noted that, as shown in FIG. 3 , if the overlapping length between themechanical claw 130 and the arc-shapedrib 3111 is too short, it is easy to cause thepump piston head 311 to be offset from the mechanical claw. 130 produces the risk of detachment, which affects the stability of capture; if the overlapping length between themechanical claw 130 and the arc-shapedrib 3111 is too long, since thepump piston head 311 needs to meet the requirements of smoothly entering the Therefore, the arc-shapedrib 3111 and themechanical claw 130 also need to be increased accordingly, which will easily lead to the overall structure of thepump piston head 311 and the pump head catcher being too large, resulting in the overall Machine structure and performance disorders. Still referring to FIG. 3 , on the basis of the radial floating gap formed between the head end of themechanical claw 130 and thepump piston head 311 , between themechanical claw 130 and the arc-shapedrib 3111 The overlapping length is T, and T satisfies 1.5W≤T≤2.5W. While compensating for the misalignment of thepump piston head 311 in the X direction and/or Y direction, it can not only avoid thepump piston head 311 from Offset and the risk of detachment from themechanical claw 130 can improve the stability of capture, and can optimize the structure of thepump piston head 311 and the pump head catcher, improving the coordination of the structure and performance of the whole machine.

具体地，所述机械爪130沿轴向靠近所述连接主体110的一端设置有卡接面131，所述卡接面131适于与所述弧形肋3111的底面相抵接；Specifically, one end of themechanical claw 130 axially close to the connectingbody 110 is provided with a clampingsurface 131, and the clampingsurface 131 is adapted to abut against the bottom surface of the arc-shapedrib 3111;

所述机械爪130的首端设置有过渡面132，所述过渡面132与所述卡接面131之间成锐角设置，所述过渡面132适于引导泵活塞头311沿轴向靠近所述连接主体110运动。The first end of themechanical claw 130 is provided with atransition surface 132, thetransition surface 132 is set at an acute angle with the clampingsurface 131, and thetransition surface 132 is suitable for guiding thepump piston head 311 to approach theThe connecting body 110 moves.

需要说明的是，请参见图1所示，所述首端指的是所述机械爪130沿径向靠近泵活塞头311的一端，所述尾端指的是所述机械爪130沿径向远离泵活塞头311的一端；请参见图2所示，所述机械爪130沿轴向靠近所述连接主体110的一端设置有卡接面131，所述机械爪130的首端设置有过渡面132，所述过渡面132与所述卡接面131之间成锐角设置，所述过渡面132适于引导泵活塞头311沿轴向靠近所述连接主体110运动；在所述泵头捕捉器捕捉过程中，所述过渡面132引导泵活塞头311沿轴向靠近所述连接主体110运动，直至所述卡接面131与所述弧形肋3111的底面相抵接，同时所述泵活塞头311的半球形顶部被所述平面空腔1101限位，从而完成对所述泵活塞头311的捕捉。It should be noted that, referring to FIG. 1 , the head end refers to the end of themechanical claw 130 that is close to thepump piston head 311 in the radial direction, and the tail end refers to the radial end of themechanical claw 130 . The end away from thepump piston head 311; please refer to FIG. 2, the end of themechanical claw 130 close to the connectingbody 110 in the axial direction is provided with a clampingsurface 131, and the head end of themechanical claw 130 is provided with atransition surface 132, thetransition surface 132 and the clampingsurface 131 are set at an acute angle, and thetransition surface 132 is suitable for guiding thepump piston head 311 to move axially close to the connectingbody 110; in the pump head catcher During the capturing process, thetransition surface 132 guides thepump piston head 311 to move axially close to the connectingbody 110 until theengagement surface 131 abuts against the bottom surface of the arc-shapedrib 3111 , and at the same time the pump piston head The hemispherical top of 311 is limited by theplanar cavity 1101 , so as to capture thepump piston head 311 .

具体地，所述固定座120包括：Specifically, the fixingseat 120 includes:

底板121，所述底板121上开设有所述滑轨1202；abottom plate 121, on which theslide rail 1202 is opened;

盖板122，与所述底板121沿轴向间隔设置，所述盖板122与所述底板121固定连接以将所述机械爪130封装于所述滑轨1202内；Acover plate 122 is arranged at an axial distance from thebottom plate 121, and thecover plate 122 is fixedly connected to thebottom plate 121 to encapsulate themechanical claw 130 in theslide rail 1202;

侧盖123，所述侧盖123与所述盖板122和/或所述底板121固定连接，所述侧盖123适于对所述驱动弹簧140进行限位。Aside cover 123 , theside cover 123 is fixedly connected with thecover plate 122 and/or thebottom plate 121 , and theside cover 123 is suitable for limiting the drivingspring 140 .

请参见图1所示，本实施例中，所述盖板122连接于所述连接主体110上，所述盖板122与所述底板121沿轴向间隔设置，所述盖板122与所述底板121螺栓固定连接以将所述机械爪130封装于所述滑轨1202内；所述侧盖123与所述盖板122和/或所述底板121螺栓固定连接，所述侧盖123通过与所述驱动弹簧140相抵接以对所述驱动弹簧140进行限位。Please refer to FIG. 1, in this embodiment, thecover plate 122 is connected to the connectingbody 110, thecover plate 122 and thebottom plate 121 are axially spaced apart, and thecover plate 122 and the Thebottom plate 121 is fixedly connected by bolts so that themechanical gripper 130 is encapsulated in theslide rail 1202; theside cover 123 is fixedly connected with thecover plate 122 and/or thebottom plate 121 by bolts, and theside cover 123 is connected with theThe driving spring 140 abuts to limit thedriving spring 140 .

具体地，所述机械爪130包括限位部133，所述盖板122和/或所述底板121靠近所述机械爪130的一侧开设有限位槽1203，所述限位部133滑动设置于所述限位槽1203内以对所述机械爪130进行限位。Specifically, themechanical claw 130 includes a limitingportion 133, thecover plate 122 and/or thebottom plate 121 is provided with a limitinggroove 1203 on a side close to themechanical claw 130, and the limitingportion 133 is slidably disposed on The limitinggroove 1203 is used to limit themechanical claw 130 .

需要说明的是，请参见图5所示，所述限位部133可以设置于所述机械爪130沿其自身宽度方向的两侧；所述底板121沿垂直径向方向开设有与所述限位部133对应的限位槽1203，所述限位部133沿径向滑动设置于所述限位槽1203内，从而对所述机械爪130进行限位以避免所述机械爪130脱离所述滑轨1202。作为变形，请参见图6所示，所述机械爪130包括限位部133，所述限位部133设置于所述机械爪130沿Z向上的至少其中一侧；所述盖板122和/或所述底板121沿Z向靠近所述机械爪130的一侧开设有限位槽1203，所述限位部133沿径向滑动设置于所述限位槽1203内，从而对所述机械爪130进行限位以避免所述机械爪130脱离所述滑轨1202。It should be noted that, as shown in FIG. 5 , the limitingportion 133 can be arranged on both sides of themechanical claw 130 along its own width direction; Thelimit portion 133 corresponds to thelimit groove 1203, and thelimit portion 133 is slidably arranged in thelimit groove 1203 in the radial direction, so as to limit the position of themechanical claw 130 to prevent themechanical claw 130 from disengaging from theRail 1202. As a modification, please refer to FIG. 6 , themechanical claw 130 includes a limitingportion 133, and the limitingportion 133 is arranged on at least one side of themechanical claw 130 along the Z direction; thecover plate 122 and/or Or thebottom plate 121 is provided with a limitinggroove 1203 on the side close to themechanical claw 130 along the Z direction, and the limitingpart 133 is slidably arranged in the limitinggroove 1203 in the radial direction, so that themechanical claw 130 Positioning is performed to prevent themechanical claw 130 from detaching from theslide rail 1202 .

实施例二Embodiment two

结合图1-图15所示，本实施例所提供的血栓吸除系统，包括：As shown in Fig. 1-Fig. 15, the thrombus suction system provided in this embodiment includes:

主机架50；main frame 50;

所述主机架50上沿Z向设置有导管泵运动单元40，所述导管泵运动单元40通过如上述所述的泵头捕捉器与泵活塞头311相连接，所述泵活塞头311设置于抽吸泵31的一端；所述抽吸泵31的另一端通过吸栓导管223与蠕动泵相连接；Themain frame 50 is provided with a catheterpump movement unit 40 along the Z direction, and the catheterpump movement unit 40 is connected to thepump piston head 311 through the pump head catcher as described above, and thepump piston head 311 is arranged on One end of thesuction pump 31; the other end of thesuction pump 31 is connected with the peristaltic pump through thesuction plug conduit 223;

所述主机架50上沿Y向设置有导管台运动单元30，适于带动所述抽吸泵31和蠕动泵相对所述主机架50沿Y向移动。Themain frame 50 is provided with a cathetertable moving unit 30 along the Y direction, which is suitable for driving thesuction pump 31 and the peristaltic pump to move relative to themain frame 50 along the Y direction.

需要说明的是，请参见图8所示，所述主机架50上沿Z向设置有导管泵运动单元40，其中，所述导管泵运动单元40可以配置为搭配伺服电机驱动的电缸，在具体实施过程中，可以外设控制单元通过串口控制所述导管泵运动单元40的运动行程、上升速度、下降速度、停留时间等参数，在此不再赘述；所述导管泵运动单元40通过如上述所述的泵头捕捉器与泵活塞头311相连接，以带动所述抽吸泵31沿Z向上下高速往复直线运动，从而实现吸栓导管223端部喷射高速流体；所述抽吸泵31通过吸栓导管223与蠕动泵相连接；所述主机架50上沿Y向设置有导管台运动单元30，其中，所述导管台运动单元30可以配置为步进电机驱动的直线模组，所述直线模组上方固定有导管台底座，所述直线模组由步进电机驱动以带动导管台底座沿Y向前后直线运动，从而实现导管台（图中未示出）沿Y向的进出，进而带动所述抽吸泵31和蠕动泵相对所述主机架50沿Y向移动，在此不再赘述。It should be noted that, referring to FIG. 8 , themain frame 50 is provided with a catheterpump movement unit 40 along the Z direction, wherein the catheterpump movement unit 40 can be configured as an electric cylinder driven by a servo motor. In the specific implementation process, the external control unit can control the parameters such as the movement stroke, rising speed, descending speed, and residence time of the catheter pump movement unit 40 through the serial port, which will not be described in detail here; the catheter pump movement unit 40 is passed as The above-mentioned pump head catcher is connected with the pump piston head 311 to drive the suction pump 31 to reciprocate linearly at high speed up and down along the Z direction, so as to realize the high-speed fluid injection at the end of the suction plug conduit 223; the suction pump 31 31 is connected to the peristaltic pump through the suction plug catheter 223; the main frame 50 is provided with a catheter table movement unit 30 along the Y direction, wherein the catheter table movement unit 30 can be configured as a linear module driven by a stepping motor, The base of the catheter table is fixed above the linear module, and the linear module is driven by a stepping motor to drive the base of the catheter table to move linearly forward and backward along Y, so as to realize the entry and exit of the catheter table (not shown in the figure) along the Y direction , and then drive the suction pump 31 and the peristaltic pump to move relative to the main frame 50 along the Y direction, which will not be repeated here.

本实施例中，所述蠕动泵包括：In this embodiment, the peristaltic pump includes:

安装架20，适于相对主机架50沿Y向往复移动；The mountingframe 20 is suitable for reciprocating movement along the Y direction relative to themain frame 50;

滚柱泵机构21，转动设置于所述安装架20上，所述滚柱泵机构21与电机211传动连接；Theroller pump mechanism 21 is rotatably arranged on the mountingframe 20, and theroller pump mechanism 21 is connected to themotor 211 through transmission;

夹持结构22，活动设置于所述安装架20上，所述夹持结构22适于沿X向相对所述滚柱泵机构21往复移动；The clampingstructure 22 is movably arranged on the mountingframe 20, and the clampingstructure 22 is adapted to reciprocate relative to theroller pump mechanism 21 along the X direction;

斜面结构51，其沿X向一侧固定设置于所述主机架50上，另一侧与所述夹持结构22相连接；在所述安装架20相对所述主机架50沿Y向往复移动的过程中，所述斜面结构51适于驱动所述夹持结构22沿X向靠近或者远离所述滚柱泵机构21以使蠕动泵闭合或者打开。Theslope structure 51 is fixed on one side of themain frame 50 along the X direction, and the other side is connected to the clampingstructure 22; when theinstallation frame 20 moves back and forth relative to themain frame 50 in the Y direction During the process, theramp structure 51 is suitable for driving the clampingstructure 22 to approach or move away from theroller pump mechanism 21 along the X direction to close or open the peristaltic pump.

需要说明的是，在本实施例中，本发明所述蠕动泵安装在导管台运动单元30上，所述导管台运动单元30在设备默认状态下处于主机内部；所述导管台运动单元30沿Y向直线移动，所述导管台运动单元30可由主机内部的默认原点位置将所载蠕动泵和导管台等移动到主机外部预设位置，或者由主机外部预设位置移动回主机内部默认原点位置。当用户要安装抽吸泵31的时候，可通过主机控制所述导管台运动单元30将所载蠕动泵和导管台等沿Y向移动到主机外部预设位置，在此过程中，所述斜面结构51驱动所述夹持结构22沿X向远离所述滚柱泵机构21，直至导管台移动到预设位置；此时所述夹持结构22与所述滚柱泵机构21之间的距离达到最大，所述蠕动泵70此时处于打开状态，这时可以将抽吸泵31安装到导管台上的泵座（图中未示出）中，并将吸栓导管223放置于所述夹持结构22与所述滚柱泵机构21之间。随后通过主机控制所述导管台运动单元30返回主机内部，在此过程中，所述斜面结构51驱动所述夹持结构22沿X向靠近所述滚柱泵机构21，直至所述导管台运动单元30回到主机内部的默认原点位置；此时所述夹持结构22与所述滚柱泵机构21之间的距离达到最小，所述蠕动泵70此时处于闭合状态，这时所述吸栓导管223已被所述夹持结构22与所述滚柱泵机构21牢牢夹紧，至此，安装抽吸泵31的动作过程全部结束。It should be noted that, in this embodiment, the peristaltic pump of the present invention is installed on the cathetertable movement unit 30, and the catheterstation movement unit 30 is inside the host machine in the default state of the device; the catheterstation movement unit 30 is Moving in a straight line in the Y direction, the cathetertable movement unit 30 can move the peristaltic pump and the catheter table to the preset position outside the host from the default origin position inside the host, or move back to the default origin position inside the host from the preset position outside the host . When the user wants to install thesuction pump 31, the host can control the cathetertable movement unit 30 to move the peristaltic pump and the catheter table to the preset position outside the host along the Y direction. Thestructure 51 drives the clampingstructure 22 away from theroller pump mechanism 21 along the X direction until the catheter platform moves to a preset position; at this time, the distance between the clampingstructure 22 and theroller pump mechanism 21 Reaching the maximum, the peristaltic pump 70 is in the open state at this time, at this time, thesuction pump 31 can be installed in the pump seat (not shown in the figure) on the catheter table, and thesuction plug catheter 223 is placed in the clamp Between the holdingstructure 22 and theroller pump mechanism 21. Then the host computer controls the cathetertable moving unit 30 to return to the host computer. During this process, theinclined plane structure 51 drives the clampingstructure 22 to approach theroller pump mechanism 21 along the X direction until the catheter table moves. Theunit 30 returns to the default origin position inside the host; at this time, the distance between the clampingstructure 22 and theroller pump mechanism 21 reaches the minimum, and the peristaltic pump 70 is in a closed state at this time, and the suction Thepin guide tube 223 has been firmly clamped by the clampingstructure 22 and theroller pump mechanism 21 , so far, the action process of installing thesuction pump 31 is all over.

需要说明的是，改进前的蠕动泵系统不仅需要一个电机控制滚柱泵组件的转动以实现废液回流控制，还需要另一单独的电机以及传动件控制蠕动泵的开合来实现废液管的自动夹持功能，传动结构复杂，损坏风险较高成本也较高。本发明所提供的蠕动泵，通过设置安装架20，从而带动滚柱泵机构21和夹持结构22相对主机架50沿Y向往复移动；通过设置夹持结构22沿X向相对所述滚柱泵机构21往复移动，从而实现蠕动泵的开合；通过设置斜面结构51，使得所述斜面结构51沿X向一侧固定设置于所述主机架50上，另一侧与所述夹持结构22相连接，在所述安装架20相对所述主机架50沿Y向往复移动的过程中，通过所述斜面结构51驱动所述夹持结构22沿X向靠近或者远离所述滚柱泵机构21以使蠕动泵闭合或者打开，无需额外配一台专门的电机以及配套驱动电路来控制蠕动泵的开合，不仅降低了损坏风险，而且节约了较大成本。It should be noted that the pre-improvement peristaltic pump system not only requires a motor to control the rotation of the roller pump assembly to achieve waste liquid backflow control, but also requires another separate motor and transmission to control the opening and closing of the peristaltic pump to realize waste liquid flow control. The automatic clamping function, the transmission structure is complex, the risk of damage is high and the cost is high. The peristaltic pump provided by the present invention drives theroller pump mechanism 21 and the clampingstructure 22 to reciprocate along the Y direction relative to themain frame 50 by setting the mountingframe 20; Thepump mechanism 21 moves back and forth, thereby realizing the opening and closing of the peristaltic pump; by setting theinclined plane structure 51, theinclined plane structure 51 is fixedly arranged on one side of themain frame 50 along the X direction, and the other side is connected with the clampingstructure 22, during the reciprocating movement of theinstallation frame 20 relative to themain frame 50 along the Y direction, the clampingstructure 22 is driven by theinclined plane structure 51 to approach or move away from the roller pump mechanism along theX direction 21 In order to close or open the peristaltic pump, there is no need to configure an additional special motor and supporting drive circuit to control the opening and closing of the peristaltic pump, which not only reduces the risk of damage, but also saves a large cost.

具体地，所述安装架20沿X向固定设置有弹性导柱机构23，所述夹持结构22包括滑动部221，所述滑动部221沿X向滑动设置于所述弹性导柱机构23上；Specifically, theinstallation frame 20 is fixedly provided with an elasticguide post mechanism 23 along the X direction, and the clampingstructure 22 includes a slidingpart 221, and the slidingpart 221 is slidably arranged on the elasticguide post mechanism 23 along the X direction. ;

所述斜面结构51包括斜坡驱动导轨511，所述斜坡驱动导轨511与所述滑动部221在X向始终处于连接状态；在所述安装架20沿Y向移动时，所述斜坡驱动导轨511适于驱动所述滑动部221沿X向靠近或者远离所述滚柱泵机构21。Theslope structure 51 includes a slope drivingguide rail 511, and the slope drivingguide rail 511 and the slidingpart 221 are always connected in the X direction; when theinstallation frame 20 moves along the Y direction, the slope drivingguide rail 511 is adapted to The slidingpart 221 is driven to approach or move away from theroller pump mechanism 21 along the X direction.

需要说明的是，请参见图13和图15所示，所述弹性导柱机构23沿X向固定设置于所述安装架20上；所述夹持结构22包括滑动部221，所述滑动部221适于沿X向相对所述弹性导柱机构23往复滑动，从而实现蠕动泵的运动定向；所述斜坡驱动导轨511与所述滑动部221在X向始终处于连接状态；在所述安装架20沿Y向移动时，所述斜坡驱动导轨511适于驱动所述滑动部221沿所述弹性导柱机构23靠近或者远离所述滚柱泵机构21，从而提高控制蠕动泵开合的稳定性。It should be noted that, please refer to FIG. 13 and FIG. 15 , the elasticguide column mechanism 23 is fixedly arranged on theinstallation frame 20 along the X direction; the clampingstructure 22 includes a slidingpart 221, and the slidingpart 221 is suitable for reciprocating sliding relative to the elasticguide column mechanism 23 along the X direction, so as to realize the movement orientation of the peristaltic pump; the slope drivingguide rail 511 and the slidingpart 221 are always in a connected state in the X direction; When 20 moves along the Y direction, the slope drivingguide rail 511 is suitable for driving the slidingpart 221 to approach or move away from theroller pump mechanism 21 along the elasticguide column mechanism 23, thereby improving the stability of controlling the opening and closing of the peristaltic pump .

具体地，所述斜坡驱动导轨511包括沿Y向设置的斜坡远止端5111和斜坡近止端5112，所述斜坡远止端5111与所述滚柱泵机构21沿X向之间的距离大于所述斜坡近止端5112与所述滚柱泵机构21沿X向之间的距离；当所述滑动部221运动至所述斜坡远止端5111时，蠕动泵切换至打开状态；当所述滑动部221运动至所述斜坡近止端5112时，蠕动泵切换至闭合状态。Specifically, the slope drivingguide rail 511 includes a slopefar end 5111 and a slope nearend 5112 arranged along the Y direction, and the distance between the slopefar end 5111 and theroller pump mechanism 21 along the X direction is greater than The distance between thenear end 5112 of the slope and theroller pump mechanism 21 along the X direction; when the slidingpart 221 moves to thefar end 5111 of the slope, the peristaltic pump switches to the open state; when the When the slidingpart 221 moves to theproximal end 5112 of the slope, the peristaltic pump switches to the closed state.

可选的，所述斜坡驱动导轨511还包括斜坡过渡段5113，所述斜坡过渡段5113设置于所述斜坡远止端5111与所述斜坡近止端5112之间，所述斜坡过渡段5113适于将所述斜坡远止端5111与所述斜坡近止端5112平滑连接过渡，从而使得所述滑动部221能够在所述斜坡远止端5111与所述斜坡近止端5112之间平滑切换，增强蠕动泵在打开状态与闭合状态之间切换的平稳性。Optionally, the slope drivingguide rail 511 further includes aslope transition section 5113, theslope transition section 5113 is arranged between the slopefar end 5111 and the slope nearend 5112, and theslope transition section 5113 is suitable for To smoothly connect and transition thefar end 5111 of the slope and theproximal end 5112 of the slope, so that the slidingpart 221 can smoothly switch between thefar end 5111 of the slope and theproximal end 5112 of the slope, Enhanced smoothness of peristaltic pump switching between open and closed states.

需要说明的是，请参见图10和图12所示，本实施例中，所述斜坡驱动导轨511包括沿Y向设置的斜坡远止端5111和斜坡近止端5112，所述斜坡远止端5111与所述斜坡近止端5112通过斜坡过渡段5113平滑连接过渡，所述斜坡远止端5111与所述滚柱泵机构21沿X向之间的距离大于所述斜坡近止端5112与所述滚柱泵机构21沿X向之间的距离；在所述安装架20相对所述主机架50沿Y向往复移动的过程中，当所述滑动部221在所述安装架20的带动下运动至所述斜坡远止端5111时，所述夹持结构22与所述滚柱泵机构21之间的距离达到最大，蠕动泵切换至打开状态；当所述滑动部221在所述安装架20的带动下运动至所述斜坡近止端5112时，所述夹持结构22与所述滚柱泵机构21之间的距离达到最小，蠕动泵切换至闭合状态，从而无需额外配一台专门的电机以及配套驱动电路来控制蠕动泵的开合，降低了损坏风险。It should be noted that, please refer to FIG. 10 and FIG. 12 , in this embodiment, the slope drivingguide rail 511 includes a slopefar end 5111 and a slope nearend 5112 arranged along the Y direction, and the slopefar end 5111 and the near end of theslope 5112 are smoothly connected and transitioned through theslope transition section 5113, and the distance between the far end of theslope 5111 and theroller pump mechanism 21 along the X direction is greater than that between thenear end 5112 and the slope. The distance between theroller pump mechanism 21 along the X direction; during the reciprocating movement of theinstallation frame 20 relative to themain frame 50 along the Y direction, when the slidingpart 221 is driven by theinstallation frame 20 When moving to thefar end 5111 of the slope, the distance between the clampingstructure 22 and theroller pump mechanism 21 reaches the maximum, and the peristaltic pump switches to the open state; when the slidingpart 221 is on the mounting frame When moving to thenear end 5112 of the slope driven by 20, the distance between the clampingstructure 22 and theroller pump mechanism 21 reaches the minimum, and the peristaltic pump is switched to the closed state, so that there is no need to configure an additional special The motor and supporting drive circuit control the opening and closing of the peristaltic pump, reducing the risk of damage.

具体地，所述滑动部221与所述斜坡驱动导轨511之间设置有滚轮机构512，所述滚轮机构512适于将所述斜坡驱动导轨511与所述滑动部221滚动连接。Specifically, aroller mechanism 512 is disposed between the slidingpart 221 and the slope drivingguide rail 511 , and theroller mechanism 512 is suitable for rollingly connecting the slope drivingguide rail 511 and the slidingpart 221 .

请参见图10和图12所示，本实施例中，所述滑动部221与所述斜坡驱动导轨511之间设置有滚轮机构512，所述滚轮机构512的内圈（图中未示出）转动设置于固定轴513上，所述固定轴513固定设置于所述滑动部221上，所述滚轮机构512的外圈滚动设置于所述斜坡驱动导轨511的开槽（图中未示出）内，从而将所述斜坡驱动导轨511与所述滑动部221滚动连接，减小了所述斜坡驱动导轨511与所述滑动部221之间的摩擦，降低了所述斜坡驱动导轨511与所述滑动部221之间的噪音，增强了所述滑动部221与所述斜坡驱动导轨511之间运动的可靠性，有利于延长所述蠕动泵的使用寿命。Please refer to Fig. 10 and Fig. 12, in this embodiment, aroller mechanism 512 is provided between the slidingpart 221 and the slope drivingguide rail 511, and the inner ring of the roller mechanism 512 (not shown in the figure) Rotation is set on the fixedshaft 513, the fixedshaft 513 is fixed on the slidingpart 221, the outer ring of theroller mechanism 512 is rollingly set in the slot of the slope driving guide rail 511 (not shown in the figure) inside, so that the slope drivingguide rail 511 is rollingly connected with the slidingpart 221, the friction between the slope drivingguide rail 511 and the slidingpart 221 is reduced, and the contact between the slope drivingguide rail 511 and the slidingpart 221 is reduced. The noise between the slidingparts 221 enhances the reliability of the movement between the slidingpart 221 and the slope drivingguide rail 511, which is beneficial to prolong the service life of the peristaltic pump.

具体地，所述弹性导柱机构23包括沿X向设置的第一轴杆231，所述滑动部221上开设有与所述第一轴杆231相配合的第一轴孔2211，所述第一轴孔2211与所述第一轴杆231之间设置有弹簧233，所述弹簧233适于将所述安装架20与所述夹持结构22弹性连接；Specifically, the elasticguide column mechanism 23 includes afirst shaft 231 arranged along the X direction, and afirst shaft hole 2211 matching with thefirst shaft 231 is opened on the slidingpart 221 , and thefirst A spring 233 is disposed between ashaft hole 2211 and thefirst shaft 231, and thespring 233 is suitable for elastically connecting theinstallation frame 20 with the clampingstructure 22;

所述弹性导柱机构23还包括沿X向设置的第二轴杆232，所述滑动部221上开设有与所述第二轴杆232相配合的第二轴孔2212，所述第二轴孔2212与所述第二轴杆232之间设置有滑动轴承234，所述滑动轴承234适于支承所述滑动部221沿所述第二轴杆232滑动。The elasticguide column mechanism 23 also includes asecond shaft 232 arranged along the X direction, and asecond shaft hole 2212 matching with thesecond shaft 232 is opened on the slidingpart 221 , the second shaftA sliding bearing 234 is disposed between thehole 2212 and thesecond shaft 232 , and the slidingbearing 234 is suitable for supporting the slidingpart 221 to slide along thesecond shaft 232 .

可选的，所述第二轴杆232的数量为两组，两组所述第二轴杆232对称设置于所述第一轴杆231的Y向两侧，不仅能够对所述滑动部221提供稳定支撑，而且有利于提高所述滑动部221相对所述安装架20的定向运动精度。Optionally, the number of thesecond shaft rods 232 is two groups, and the two groups of thesecond shaft rods 232 are symmetrically arranged on both sides of thefirst shaft rod 231 in the Y direction. Stable support is provided, and it is beneficial to improve the directional movement accuracy of the slidingpart 221 relative to theinstallation frame 20 .

需要说明的是，请参见图13和图15所示，所述第一轴杆231沿X向固定设置于所述安装架20上，所述滑动部221上开设有第一轴孔2211，所述第一轴孔2211适于与所述第一轴杆231沿X向滑动配合；所述弹簧233同轴设置于所述第一轴杆231上，所述弹簧233通过将所述安装架20与所述夹持结构22弹性连接，同时所述斜坡驱动导轨511通过所述斜坡过渡段5113平滑过渡，从而缓冲所述滑动部221与所述安装架20之间的运动冲击，增强所述蠕动泵开合的平稳性；所述第二轴杆232沿X向固定设置于所述安装架20上，所述滑动部221上开设有第二轴孔2212，所述第二轴孔2212与所述第二轴杆232之间通过滑动轴承234相配合，所述滑动轴承234通过支承所述滑动部221沿所述第二轴杆232滑动，不仅能够提高所述滑动部221与所述安装架20之间的定向运动精度，而且能够减少蠕动泵的运行噪音，进而提高整个蠕动泵开合控制的平稳性和精确性。It should be noted that, please refer to FIG. 13 and FIG. 15 , thefirst shaft 231 is fixedly arranged on theinstallation frame 20 along the X direction, and thefirst shaft hole 2211 is opened on the slidingpart 221, so that Thefirst shaft hole 2211 is suitable for slidingly fitting with thefirst shaft 231 along the X direction; thespring 233 is coaxially arranged on thefirst shaft 231 , and thespring 233 passes the mountingbracket 20 It is elastically connected with the clampingstructure 22, and at the same time, the slope drivingguide rail 511 transitions smoothly through theslope transition section 5113, so as to buffer the movement impact between the slidingpart 221 and the mountingframe 20, and enhance the peristalsis The stability of the opening and closing of the pump; thesecond shaft 232 is fixedly arranged on theinstallation frame 20 along the X direction, and the slidingpart 221 is provided with asecond shaft hole 2212, and thesecond shaft hole 2212 is connected with theThe sliding bearing 234 cooperates between thesecond shaft rods 232, and the slidingbearing 234 slides along thesecond shaft rod 232 by supporting the slidingpart 221, which not only can improve the connection between the slidingpart 221 and the mounting frame. The directional motion accuracy between 20 and can reduce the running noise of the peristaltic pump, thereby improving the stability and accuracy of the opening and closing control of the whole peristaltic pump.

具体地，所述弹簧233的弹性恢复力为W，当所述滑动部221运动至所述斜坡近止端5112时，W满足10N≤W≤12N；当所述滑动部221运动至所述斜坡远止端5111时，W满足0.5N≤W≤1.5N。Specifically, the elastic restoring force of thespring 233 is W, and when the slidingpart 221 moves to thenear end 5112 of the slope, W satisfies 10N≤W≤12N; when the slidingpart 221 moves to the slope When the far end is 5111, W satisfies 0.5N≤W≤1.5N.

需要说明的是，请参见图13和图15所示，所述弹簧233的弹性恢复力为W，所述弹簧233在所述第一轴孔2211与所述第一轴杆231配合的过程中预压缩于所述第一轴杆231上。当所述滑动部221运动至所述斜坡远止端5111时，蠕动泵处于打开状态，此时W不能过小，否则难以有效缓冲所述滑动部221在所述斜坡远止端5111时对所述安装架20的运动冲击，因此W需满足W≥0.5N；此时W也不能过大，否则容易导致所述弹簧233需要的预压缩力过大，对整机结构的力学性能要求较高，因此W需满足W≤1.5N。当所述滑动部221运动至所述斜坡近止端5112时，蠕动泵处于闭合状态，此时W不能过小，否则难以有效保证所述夹持结构22与所述滚柱泵机构21之间的定位精度，因此W需满足W≥10N；此时W也不能过大，否则容易对所述安装架20和/或斜面结构51造成推离过度，对整机结构的力学性能要求较高，因此W需满足W≤12N。It should be noted that, referring to FIG. 13 and FIG. 15 , the elastic restoring force of thespring 233 is W, and thespring 233 is in the process of fitting thefirst shaft hole 2211 with thefirst shaft rod 231 It is pre-compressed on thefirst shaft 231 . When the slidingpart 221 moves to thefar end 5111 of the slope, the peristaltic pump is in the open state, and W cannot be too small at this time, otherwise it is difficult to effectively buffer the slidingpart 221 at thefar end 5111 of the slope. The motion impact of the above-mentioned mountingframe 20, so W needs to meet W≥0.5N; at this time, W can not be too large, otherwise it will easily lead to the excessive pre-compression force required by thespring 233, and the mechanical performance requirements of the whole machine structure are relatively high. , so W needs to satisfy W≤1.5N. When the slidingpart 221 moves to theproximal end 5112 of the slope, the peristaltic pump is in the closed state. At this time, W cannot be too small, otherwise it is difficult to effectively ensure the gap between the clampingstructure 22 and theroller pump mechanism 21. Therefore, W needs to meet W≥10N; at this time, W should not be too large, otherwise it is easy to cause excessive push-off of the mountingframe 20 and/or the inclined-plane structure 51, and the mechanical performance requirements of the whole machine structure are relatively high. Therefore, W needs to satisfy W≤12N.

本实施例中，当所述滑动部221运动至所述斜坡近止端5112时，所述弹簧233的预压缩力W满足10N≤W≤12N；当所述滑动部221运动至所述斜坡远止端5111时，所述弹簧233的预压缩力W满足0.5N≤W≤1.5N，在保证整机结构的力学性能的同时，不仅能够有效缓冲所述滑动部221对所述安装架20的运动冲击，而且能够有效保证所述夹持结构22与所述滚柱泵机构21之间的定位精度。In this embodiment, when the slidingpart 221 moves to thenear end 5112 of the slope, the precompression force W of thespring 233 satisfies 10N≤W≤12N; When the end stop is 5111, the pre-compression force W of thespring 233 satisfies 0.5N≤W≤1.5N, which can not only effectively buffer the impact of the slidingpart 221 on the mountingframe 20 while ensuring the mechanical properties of the whole machine structure. motion impact, and can effectively ensure the positioning accuracy between the clampingstructure 22 and theroller pump mechanism 21 .

可选的，当所述滑动部221运动至所述斜坡近止端5112时，W可取值为W＝11N；当所述滑动部221运动至所述斜坡远止端5111时，W可取值为W＝1N。Optionally, when the slidingpart 221 moves to thenear end 5112 of the slope, W can take a value of W=11N; when the slidingpart 221 moves to thefar end 5111 of the slope, W can take The value is W=1N.

具体地，所述安装架20上设置有定位结构24，所述定位结构24适于将所述滚柱泵机构21固定于所述安装架20上；Specifically, the mountingframe 20 is provided with apositioning structure 24, and thepositioning structure 24 is suitable for fixing theroller pump mechanism 21 on the mountingframe 20;

所述夹持结构22还包括夹持部222，所述夹持部222与所述滑动部221固定连接；所述夹持部222适于在所述滑动部221的带动下沿X向与所述定位结构24之间形成夹持间隙，所述夹持间隙适于固定吸栓导管223，以使得所述滚柱泵机构21能够间歇性夹压所述吸栓导管223。The clampingstructure 22 also includes a clampingpart 222, which is fixedly connected with the slidingpart 221; A clamping gap is formed between the positioningstructures 24 , and the clamping gap is suitable for fixing thesuction plug conduit 223 , so that theroller pump mechanism 21 can intermittently clamp thesuction plug conduit 223 .

具体地，所述滚柱泵机构21包括固定盘212，所述固定盘212上环周设置有若干节流滚柱213；Specifically, theroller pump mechanism 21 includes a fixedplate 212, and a number of throttlingrollers 213 are arranged on the upper circumference of the fixedplate 212;

所述节流滚柱213转动设置于所述固定盘212上；所述固定盘212在所述电机211的驱动下带动若干所述节流滚柱213转动，以使得任意一个所述节流滚柱213对所述吸栓导管223夹压节流。Thethrottle roller 213 is rotatably arranged on the fixedplate 212; the fixedplate 212 drives a plurality of thethrottle rollers 213 to rotate under the drive of themotor 211, so that any one of the throttle rollers Thepost 213 pinches and throttles thesuction plug conduit 223 .

需要说明的是，请参见图13和图14所示，本实施例中，所述滚柱泵机构21包括：固定盘212，所述固定盘212在所述电机211的驱动下转动；所述固定盘212上环周均匀设置有三个节流滚柱213，三个所述节流滚柱213均转动设置于所述固定盘212上；所述固定盘212在所述电机211的驱动下带动三个所述节流滚柱213转动，以使得任意一个所述节流滚柱213对所述吸栓导管223夹压节流，从而控制所述吸栓导管223的体积流量；在具体实施过程中，可以外设控制单元通过脉冲控制所述电机211以控制所述滚柱泵机构21的转动方向和转速。It should be noted that, please refer to Fig. 13 and Fig. 14, in this embodiment, theroller pump mechanism 21 includes: afixed plate 212, the fixedplate 212 rotates under the drive of themotor 211; Three throttlingrollers 213 are evenly arranged on the upper circumference of the fixeddisk 212, and the threethrottle rollers 213 are all rotatably arranged on the fixeddisk 212; the fixeddisk 212 is driven by themotor 211 The threethrottle rollers 213 rotate, so that any one of thethrottle rollers 213 pinches and throttles thesuction plug conduit 223, thereby controlling the volume flow rate of thesuction plug conduit 223; in the specific implementation process Among them, an external control unit can control themotor 211 through pulses to control the rotation direction and speed of theroller pump mechanism 21 .

实施例三Embodiment three

本实施例所提供的血栓吸除系统的使用方法，包括如下步骤：The method for using the thrombus suction system provided in this embodiment includes the following steps:

S1、控制导管台运动单元30带动抽吸泵31和蠕动泵沿Y向远离导管泵运动单元40，使得蠕动泵切换至打开状态；S1. Control the cathetertable movement unit 30 to drive thesuction pump 31 and the peristaltic pump away from the catheterpump movement unit 40 along the Y direction, so that the peristaltic pump is switched to an open state;

S2、将抽吸泵31安装固定于导管台运动单元30上，并将吸栓导管223置于夹持间隙内，控制所述导管台运动单元30带动所述抽吸泵31和所述蠕动泵沿Y向靠近所述导管泵运动单元40，并使得蠕动泵在斜面结构51作用下切换至闭合状态；S2. Install and fix thesuction pump 31 on the cathetertable movement unit 30, place thesuction plug catheter 223 in the clamping gap, and control the cathetertable movement unit 30 to drive thesuction pump 31 and the peristaltic pump Approaching the catheterpump movement unit 40 along the Y direction, and making the peristaltic pump switch to the closed state under the action of theramp structure 51;

S3、控制导管泵运动单元40带动泵头捕捉器沿Z向靠近并捕捉泵活塞头311；S3. Control the catheterpump movement unit 40 to drive the pump head catcher to approach and catch thepump piston head 311 along the Z direction;

S4、控制导管泵运动单元40带动抽吸泵31沿Z向高速往复直线运动；控制滚柱泵机构21对吸栓导管223进行节流。S4. Control the catheterpump movement unit 40 to drive thesuction pump 31 to reciprocate linearly at high speed along the Z direction; control theroller pump mechanism 21 to throttle thesuction plug catheter 223 .

显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本发明创造的保护范围之中。Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.