CN115192125A

CN115192125A - Bin door linkage device and thrombus suction equipment

Info

Publication number: CN115192125A
Application number: CN202210875887.3A
Authority: CN
Inventors: 鞠莉莉; 汤博达; 杨硕
Original assignee: Suzhou Hengrui Callisyn Biological Medicine Technology Co ltd
Current assignee: Suzhou Hengrui Callisyn Biological Medicine Technology Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-10-18
Anticipated expiration: 2042-07-25
Also published as: CN115192125B

Abstract

The invention relates to the technical field of medical instruments and discloses a bin gate linkage device and thrombus suction equipment. The thrombus suction equipment comprises a bin gate linkage device, and the bin gate linkage device comprises a support frame body, a bin gate assembly and a movable base. The support frame body is provided with a consumable bin, the door component is connected with the support frame body, the door component is used for opening or closing the consumable bin, a clamping part used for clamping consumables is arranged on the movable base, the movable base can move relative to the support frame body along a preset direction, so that the movable base is provided with a working station and a clamping station, the part of the working station is located outside the consumable bin, the clamping part is located in the consumable bin, the clamping station is located outside the consumable bin, the door component is mechanically linked with the movable base, and the door component is driven to be opened when the movable base moves to the clamping station from the working station. According to the thrombus suction device, due to the arrangement of the bin gate linkage device, consumable materials are conveniently loaded and operated, the bin gate is reliable to open and close, and the failure rate is low.

Description

Bin door linkage device and thrombus suction equipment

Technical Field

The invention relates to the technical field of medical instruments, in particular to a bin gate linkage device and thrombus suction equipment.

Background

A percutaneous mechanical thrombus removing method features that a catheter and a cutter are inserted in the blood vessel via percutaneous puncture, the cutter is driven to cut and/or thrombolytic medicine is used to break up thrombus, and the waste liquid in catheter is sucked out by thrombus sucking device.

Consumables are important parts for realizing association of thrombus aspiration equipment with a lesion site of a human body, and specifically, the consumables include a catheter, a pump assembly, a waste liquid tube and a waste liquid collection bag. Wherein, pipe one end is used for stabbing into the blood vessel, and the other end and pump package intercommunication, waste liquid collection bag pass through waste liquid pipe and pump package subassembly intercommunication. Among the prior art, thrombus suction apparatus includes actuating mechanism and consumptive material storehouse, when carrying out percutaneous thrombus and cleaing away the art, need open the door in consumptive material storehouse, fixes the consumptive material in the consumptive material storehouse after that, realizes the butt joint with actuating mechanism's output and the pump package spare of consumptive material again to the different operating modes are realized to the drive consumptive material.

When the thrombus suction equipment in the prior art takes and places consumables, on one hand, a user needs to stretch the consumables into a consumable bin for installation, and the operation is inconvenient; on the other hand, the door of consumptive material starts for the electric drive, and the structure is complicated, the fault rate is high, and gets the trouble that the in-process accident of putting the consumptive material was closed at the user, and the security is poor.

Therefore, a need exists for a door linkage device and a thrombus aspiration device to solve the above-mentioned problems.

Disclosure of Invention

The first purpose of the invention is to provide a bin gate linkage device, which is convenient for consumable material loading operation, reliable in bin gate opening and closing and low in failure rate.

The second purpose of the invention is to provide a thrombus suction device, and by arranging the bin gate linkage device, consumables are convenient to disassemble and assemble and have good safety.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a door aggregate unit installs on supporting the support body, is provided with the consumptive material storehouse on the support body, and door aggregate unit includes:

the bin gate assembly is connected with the support frame body and is used for opening or closing the consumable bin;

the movable base can move relative to the support frame body along a preset direction, so that the movable base is provided with a working station and a clamping station, wherein part of the working station is positioned outside the consumable bin, the clamping part is positioned in the consumable bin, and the clamping station is positioned outside the consumable bin;

the bin gate component is mechanically linked with the movable base, so that the movable base drives the bin gate component to be opened when moving from the working station to the clamping station.

Optionally, the door assembly comprises:

the door shaft is arranged on the support frame body;

the door body is in rotating fit with the door shaft;

the torsional spring, the cover is located door-hinge and two tip respectively with support the support body with door body looks butt, the torsional spring is disposed remove the base and move extremely make during the workstation the door body is closed the consumptive material storehouse.

Optionally, a guide inclined plane is arranged on a side wall of the moving base parallel to the preset direction;

the door body comprises a first shaft cylinder part, a door panel and a linkage part, the first shaft cylinder part is sleeved on the door shaft and can rotate relative to the door shaft, the door panel is connected with the first shaft cylinder part and is used for opening or closing the consumable bin, and the linkage part extends from the first shaft cylinder part to the direction close to the moving base;

when the movable base moves from the working station to the clamping station, the guide inclined plane presses against and pushes the linkage part, so that the door body is opened.

Optionally, the door assembly further comprises a roller rotatably connected to the linkage portion, a rotation axis of the roller is disposed in parallel with the door shaft, and the roller is configured to abut against the guide slope.

Optionally, the bin gate linkage device further comprises a bin gate sensor, the bin gate sensor is arranged on the support frame body, and the bin gate sensor is used for detecting the opening state of the bin gate assembly.

Optionally, a boss portion is arranged on a first side wall of the movable base, which is parallel to the preset direction, and at one end of the movable base, which extends into the consumable bin;

the bin gate sensor comprises a sensor body, a trigger switch and a trigger elastic sheet, the sensor body is mounted on the support frame body and is located on one side of the first side wall, the trigger switch is arranged on one side, facing the first side wall, of the sensor body, the trigger elastic sheet is arranged on one side, facing the first side wall, of the sensor body, one end, close to the inner side of the consumable bin, of the trigger elastic sheet is connected to the sensor body, and the other end of the trigger elastic sheet extends to the trigger switch;

when the movable base moves from the working station to the clamping station, the boss part can be abutted against the trigger elastic sheet and extrude the trigger switch.

Optionally, the door linkage device further includes a mobile base locking mechanism disposed on the mobile base, and the mobile base locking mechanism is configured to mechanically lock the mobile base to the work station and unlock the mobile base when pressed.

Optionally, a first limiting part is arranged on the support frame body, a second limiting part is arranged on the movable base, and the second limiting part can abut against the first limiting part when the movable base moves along the preset direction, so that the movable base stops at the clamping station.

Optionally, the support frame body comprises a bearing plate forming a bottom plate of the consumable bin, and a plurality of linear guide rails extending along a preset direction are arranged on the bearing plate;

the movable base is provided with a plurality of sliding blocks, and the sliding blocks are in sliding fit with the linear guide rails.

A thrombus suction device comprises the bin gate linkage device.

The invention has the beneficial effects that:

according to the bin gate linkage device, the movable base is located at the working position in the default state, the bin gate assembly is located in the state of closing the consumable bin, and the bin gate assembly can effectively prevent medical liquid in the consumable bin from splashing out of the consumable bin. When consumables are required to be loaded, a user pulls the movable base to be located at the position outside the consumable bin, so that the movable base moves to the clamping station, and the clamping part on the movable base extends out of the consumable bin, so that the operation of installing/disassembling the consumables is more convenient, and when the height of the consumables is fixed, the consumables are installed outside the consumable bin, so that the height of the consumable bin can be reduced; and in the process that the consumable material moves to the clamping station, the bin gate assembly and the movable base are opened in a linkage mode, so that the user does not need to additionally operate the bin gate assembly to open and close, the steps of the consumable material replacement process are simple, the bin gate assembly and the movable base are in mechanical linkage, the bin gate assembly is good in opening and closing reliability and low in failure rate, the problem that the bin gate assembly is automatically closed when the consumable material is installed by the user is avoided, and the safety is good. The thrombus suction equipment provided by the invention has a compact structure in the height direction, and the consumables are convenient to disassemble and assemble and good in safety by arranging the bin gate linkage device.

Drawings

FIG. 1 is a schematic structural view of a thrombus extraction device according to an embodiment of the present invention in a state where a door assembly is closed;

FIG. 2 is a schematic view of the opening process of the door assembly of the thrombus aspiration device provided by the embodiment of the invention;

FIG. 3 is a schematic view of the construction of a consumable;

FIG. 4 is a longitudinal cross-sectional view of a thrombus extraction device provided in accordance with an embodiment of the present invention;

fig. 5 is a partial structural schematic view of a support frame body according to an embodiment of the invention;

FIG. 6 is an exploded view of the mobile base and the carrier plate according to the present invention;

FIG. 7 is a schematic view of a portion of a door assembly in an open position according to an embodiment of the present invention;

FIG. 8 is an exploded view of a door assembly according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view of a partial structure of a thrombus extraction device with the door assembly closed, as provided by an embodiment of the invention;

FIG. 10 isbase:Sub>A sectional view A-A of FIG. 9;

FIG. 11 is a sectional view of a partial structure of a thrombus aspiration device provided by an embodiment of the invention with the door assembly opened;

FIG. 12 is a cross-sectional view B-B of FIG. 11;

FIG. 13 is a top view of a door sensor according to an embodiment of the present invention;

FIG. 14 is a schematic view of the movable base according to the embodiment of the present invention in a bottom view;

FIG. 15 is a longitudinal sectional view of the consumable, the movable base, the tube clamping assembly and the position limiting base in a matched state according to the embodiment of the invention;

FIG. 16 is a schematic structural view of the pipe clamping assembly and the limiting base mounted on the support frame according to the embodiment of the present invention;

FIG. 17 is a longitudinal cross-sectional view of a retention base provided in accordance with an embodiment of the present invention;

FIG. 18 is a cross-sectional view of a tube clamping assembly according to an embodiment of the present invention;

FIG. 19 is a schematic view of the movable base and the limiting base in a mated state according to an embodiment of the invention;

FIG. 20 is a schematic structural diagram of a driving mechanism and a consumable docking mechanism provided in accordance with an embodiment of the present invention;

FIG. 21 is a front view of the mating state of the consumable and the consumable docking mechanism provided in the embodiment of the invention;

FIG. 22 is a cross-sectional view C-C of FIG. 21;

FIG. 23 is a cross-sectional view taken along line D-D of FIG. 22;

FIG. 24 is a longitudinal cross-sectional view of a consumable docking mechanism provided in accordance with an embodiment of the invention;

fig. 25 is an enlarged view at E in fig. 24.

In the figure:

100-consumable; 110-a pump assembly; 120-a piston; 1201-tip; 1202-a shaft portion; 130-a waste pipe; 140-a waste liquid collection bag; 150-a catheter;

1-supporting a frame body; 11-consumable bin; 12-a carrier plate; 122-a first stop; 123-sink tank; 13-a vertical mounting plate; 131-avoiding holes; 14-a housing; 15-a reinforcing plate;

2-a bin gate assembly; 21-door shaft; 22-a door body; 221-a first shaft section; 222-a door panel; 223-a linkage portion; 23-torsion spring; 24-a roller; 25-a roller; 26-a second shaft section; 27-a fastener; 28-bin gate stops; 281-mounting holes;

3-moving the base; 31-a guide ramp; 32-a boss portion; 35-avoiding grooves; 36-a second stop;

41-door sensor; 411-inductor body; 412-trigger switch; 413-a trigger spring; 42-a height adjustment block;

5-moving the base locking mechanism;

61-linear guide; 62-a slide block;

7-consumable docking mechanism; 71-a mounting bracket assembly; 711-a mount body; 7111-a first end face; 7112-an unloading channel; 7113-a holding tank; 7114-through lumen; 7115-placing grooves; 712-tip mounting seats; 7121-arc groove; 713-a platen; 714-clamping cavity; 715-a plugging plate; 72-a snap-fit assembly; 721-limit jaw; 7211-kidney-shaped holes; 7212-chamfering; 722-a third elastic member; 723-limit pin; 73-in-position sensor assembly; 731-a sensor body; 732-stylus; 733-fourth elastic member;

8-a drive mechanism; 81-motor; 82-ball screw; 83-a nut; 84-a connector;

91-a limiting base; 911-floor part; 912-a limiting part; 92-consumable limiting plate; 921-arc-shaped groove; 93-a tube clamping assembly; 931-pinch valves; 932-clip attachment holes; 933-body section; 94-consumable in-place detection component; 95-waste pipe in place detection assembly.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 and 2, the present embodiment provides a thrombus aspiration device which can be applied to percutaneous mechanical thrombectomy for delivering thrombolytic drugs into the human body, withdrawing waste liquid such as thrombus, and the like. When the thrombus aspiration apparatus is operated, the consumable 100 needs to be installed to achieve the association with the human body. Specifically, as shown in fig. 3, the consumable 100 includes a pump assembly 110, a catheter 150, a waste liquid tube 130, and a waste liquid collecting bag 140, the pump assembly 110 is for installation in a thrombus aspiration device, the pump assembly 110 is a dual-cylinder pump, the pump assembly 110 includes a piston 120, an upper chamber, and a lower chamber, and the piston 120 penetrates the upper chamber and the lower chamber. The catheter 150 has one end communicating with both the upper and lower chambers of the pump assembly 110 and the other end for puncturing a blood vessel, the waste liquid tube 130 has one end communicating with the upper chamber of the pump assembly 110 and the other end communicating with the waste liquid collecting bag 140, and a container for storing thrombolytic drugs is present in the thrombus aspiration device and communicates with the lower chamber of the pump assembly 110. As shown in fig. 3, the end of the piston 120 extending out of the upper chamber includes a rod portion 1202 and a tip 1201, the diameter of the tip 1201 is larger than that of the rod portion 1202, the end of the piston 120 is used for being abutted against a driving mechanism 8 of the thrombus aspiration device, and the driving mechanism 8 can realize switching among an irrigation and exhaust working condition, a drug spraying and thrombolysis working condition and a thrombus aspiration working condition by driving the piston 120 to reciprocate in different stroke ranges.

As shown in fig. 1 and 4, the thrombus aspiration device comprises a support frame body 1, a bin gate linkage device, a driving mechanism 8, a consumable docking mechanism 7 and a tube clamping assembly 93. Wherein support body 1 and include shell 14, shell 14 just is formed with consumptive material storehouse 11, and the side in consumptive material storehouse 11 is provided with the opening, and this opening is used for getting puts consumptive material 100. The driving mechanism 8 is installed on the support frame body 1 and arranged in the shell 14, and the driving mechanism 8 can output the motion along the vertical direction. The consumable docking mechanism 7 is connected with the output end of the driving mechanism 8 and is located right above the consumable bin 11. Door aggregate unit and support 1 swing joint of support body, door aggregate unit can bear consumptive material 100 and carry consumptive material 100 in the consumptive material storehouse 11 from the opening outside of consumptive material storehouse 11, so that piston 120 of consumptive material 100 is located consumptive material docking mechanism 7 under, 8 drive consumptive material docking mechanism 7 downstream of actuating mechanism 8 this moment, can realize the butt joint with piston 120, can also drive piston 120 reciprocating motion in appointed stroke after the butt joint, in order to accomplish different work condition's effect. Preferably, the thrombus aspiration device further comprises a door assembly 2, wherein the door assembly 2 is used for opening and closing the opening of the consumable bin 11, so that the thrombus aspiration device can prevent the medical liquid in the consumable bin 11 from splashing out of the thrombus aspiration device.

As shown in fig. 5, the support frame 1 further includes a horizontally disposed support plate 12 and a vertically disposed vertical mounting plate 13, the driving mechanism 8 is mounted on the vertical mounting plate 13, and the bin gate linkage is movably connected to the support plate 12. Specifically, still be provided with a plurality of reinforcing plates 15 between loading board 12 and the vertical mounting panel 13, reinforcing plate 15 is perpendicular to loading board 12 and vertical mounting panel 13 simultaneously to guarantee the stability of structure. Specifically, as shown in fig. 4, the driving mechanism 8 in the present embodiment includes a motor 81, a ball screw 82, a nut 83, and a connecting member 84. The motor 81 is fixed on one side of the vertical mounting plate 13, the ball screw 82 is arranged along the vertical direction and is rotatably supported on the vertical mounting plate 13 through a bearing seat, one end of the ball screw 82 is connected with an output shaft of the motor 81, the nut 83 is in threaded connection with the ball screw 82, the nut 83 is in sliding fit with the vertical mounting plate 13 through a guide rail slider structure, and the connecting piece 84 is connected with the nut 83. Consumable docking mechanism 7 is connected with connecting piece 84, and then can realize with nut 83 simultaneous movement. When the motor 81 outputs a rotational motion, the ball screw 82 rotates, so that the nut 83 moves in a vertical direction together with the consumable docking mechanism 7 with respect to the ball screw 82, and thus can be docked with the piston 120 of the consumable 100.

Among the prior art, when loading consumptive material 100 in the thrombus suction device, need open the door in consumptive material storehouse earlier, stretch into the consumptive material storehouse with the consumptive material and install. On one hand, the installation operation of consumables is inconvenient; on the other hand, when the height of the consumable is fixed, the height of the consumable bin is far greater than the height of the consumable in order to install the consumable, so that the structural compactness of the whole thrombus suction equipment is influenced; on the other hand, the bin gate of consumptive material starts for the electric drive, and the structure is complicated, the fault rate is high, and gets the risk that the in-process of putting the consumptive material has the accident to close at the user, and the security is poor.

In order to solve the above problem, preferably, as shown in fig. 6 to 12, the thrombus aspiration device further comprises a movable base 3, wherein a clamping portion for clamping the consumable 100 is arranged on the movable base 3, specifically, the clamping portion may be a jack, and the lower end of the consumable 100 can be inserted into the jack from top to bottom. The moving base 3 can move relative to the support frame 1 along a preset direction (X direction in fig. 6) so that the moving base 3 has a working station and a clamping station. As shown in fig. 1 and 9, when the movable base 3 is at the working station, the end surface of the movable base 3 is located outside the consumable material bin 11, the bin gate assembly 2 does not cover the end surface of the movable base 3, and the clamping portion is located in the consumable material bin 11; as shown in FIG. 11, when the movable base 3 is at the clamping station, the clamping portion is located outside the consumable warehouse 11. The bin gate component 2 is mechanically linked with the movable base 3, so that the movable base 3 drives the bin gate component 2 to be opened when moving from the working station to the clamping station.

In the thrombus aspiration apparatus of the present embodiment, in the default state, as shown in fig. 9, the movable base 3 is in the working position, and the door assembly 2 is in the state of closing the consumable magazine 11. When the consumable 100 needs to be loaded, as shown in fig. 11, a user pulls the movable base 3 to a position outside the consumable bin 11, so that the movable base 3 moves to the clamping station, and the clamping portion on the movable base 3 extends out of the consumable bin 11, so that the installation/disassembly operation of the consumable 100 is more convenient; when the height of the consumable is fixed, the consumable is arranged outside the consumable bin 11, so that the height of the consumable bin 11 can be reduced, and the structure of the thrombus suction equipment is more compact; in addition, in the in-process that consumptive material 100 moved to clamping position, door subassembly 2 opened with the linkage of removal base 3, consequently need not the opening and close of user extra operation door subassembly 2, make the change process step of consumptive material 100 simple, because door subassembly 2 is mechanical linkage with removal base 3, so door subassembly 2 opens and close the good reliability, the fault rate is low, also can not appear the problem that user 2 self-closing was in installation consumptive material 100 in-process, the security is good.

In this embodiment, as shown in fig. 6, the thrombus suction device further includes a plurality of linear guide rails 61 extending along a predetermined direction, a plurality of sliders 62 are disposed on the lower side of the movable base 3, and the sliders 62 are slidably engaged with the linear guide rails 61, so that a user can pull the movable base 3 more smoothly. Preferably, the loading plate 12 is provided with a sinking groove 123 extending along a predetermined direction, and the linear guide 61 is installed in the sinking groove 123, so as to ensure the accuracy of installation of the linear guide. Specifically, in this embodiment, two linear guide rails 61 are disposed on the carrier plate 12, and two sliding blocks 62 are fitted on each linear guide rail 61, so that the movement of the mobile base 3 is more stable, and in other embodiments, the specific number of the linear guide rails 61 and the sliding blocks 62 is not specifically limited.

Preferably, as shown in fig. 7, the thrombus aspiration device includes two gate assemblies 2, the two gate assemblies 2 being disposed oppositely. The bin gate assembly 2 comprises a gate shaft 21, a gate body 22 and a torsion spring 23, wherein the gate shaft 21 is arranged along the vertical direction and is installed on the bearing plate 12 of the support frame body 1, the gate body 22 is in running fit with the gate shaft 21, the torsion spring 23 is sleeved on the gate shaft 21, and two end parts of the torsion spring are respectively abutted to the support frame body 1 and the gate body 22. Then when the user pushes the mobile base 3 into the working station, the door 22 can automatically rotate to the position for closing the consumable bin 11 under the action of the torsion spring 23, so as to further improve the convenience of loading the consumables 100. Specifically, as shown in fig. 7 and 8, the lower end of the door shaft 21 is inserted into the hole in the carrier plate 12. Further, the door body 22 further includes a second shaft tube portion 26, and the second shaft tube portion 26 is provided coaxially with the first shaft tube portion 221. The bin gate assembly 2 further comprises a fastening member 27 and a bin gate limiting member 28, the bin gate limiting member 28 is fixed on the reinforcing plate 15 of the support frame body 1, the bin gate limiting member 28 has a horizontally arranged bearing plane, the bearing plane is provided with a mounting hole 281, the second shaft cylinder part 26 is lapped on the bearing plane, and the fastening member 27 penetrates through the second shaft cylinder part 26 and is connected with the mounting hole 281. Therefore, the limit of the door body 22 in the vertical direction is realized, and the installation stability of the door body 22 is ensured. Specifically, the fastener 27 may be a bolt having only an end provided with a thread, and the mounting hole 281 is a threaded hole.

In order to realize the mechanical linkage between the opening of the door assembly 2 and the moving base 3, as shown in fig. 8, 10 and 12, two side walls of the moving base 3 parallel to the predetermined direction are first side walls, the two first side walls are respectively provided with the guiding inclined planes 31, the door body 22 includes a first shaft cylinder portion 221, a door panel 222 and a linkage portion 223, the first shaft cylinder portion 221 is sleeved on the door shaft 21 and can rotate relative to the door shaft 21, the door panel 222 is connected with the first shaft cylinder portion 221 and is used for opening or closing the consumable bin 11, and the linkage portion 223 extends from the first shaft cylinder portion 221 to a direction close to the moving base 3. In the process that the movable base 3 moves from the working station to the clamping station, the guide inclined surface 31 presses and pushes the linkage part 223, so that the door body 22 is opened. It should be noted that, as shown in fig. 12, the position (and the side close to the inside of the consumable material bin) adjacent to the guiding inclined plane 31 on the first side wall of the moving base 3 is further provided with a flat surface, the flat surface is parallel to the preset direction, and after the moving base 3 reaches the clamping station, the linking part 223 abuts against the flat surface on the side wall of the moving base 3, so that the door assembly 2 can keep the position stable, and the moving base 3 can stably stay at the clamping station.

Preferably, as shown in fig. 7 and 8, the door body 22 further includes a roller 24, the roller 24 is rotatably connected to the interlocking portion 223, a rotation axis of the roller 24 is disposed in parallel with the door shaft 21, and the roller 24 is configured to abut against the guide slope 31. In this embodiment, the roller 24 is provided at the linkage portion 223, so that the abrasion of the linkage portion 223 and the movable base 3 during relative movement can be greatly reduced, and the service life can be prolonged. Specifically, in this embodiment, the door assembly 2 further includes a roller 25 and a plug, a sleeve structure is further disposed at an end of the linkage portion 223 far away from the door shaft 21, the roller 24 is disposed at the sleeve structure in an embedded position relationship, the roller 25 penetrates through the sleeve structure and the roller 24, and the plug blocks an opening of the sleeve structure, so as to install the roller 24 at the linkage portion 223. Optionally, two rollers 24 are disposed at the linkage 223 of each door assembly 2, and in other embodiments, the number of rollers 24 is not particularly limited.

Preferably, as shown in fig. 7, 12 and 13, the door linkage further includes a door sensor 41, the door sensor 41 is disposed on the support frame 1, and the door sensor 41 is used to detect an open state of the door assembly 2. Can accurately catch the opening state of present door subassembly 2 through setting up door inductor 41, and door subassembly 2 is mechanical linkage with mobile base 3, so can accurately feed back out present mobile base 3's state, other automatically controlled parts such as actuating mechanism 8 take place the malfunction when avoiding mobile base 3 to stretch out to the centre gripping station, have further guaranteed the safety of thrombus suction equipment motion.

Specifically, in this embodiment, as shown in fig. 10, fig. 12 and fig. 13, a boss portion 32 is further disposed on one of the first side walls of the moving base 3, the door sensor 41 includes a sensor body 411, a trigger switch 412 and a trigger elastic sheet 413, the sensor body 411 is mounted on the support frame 1 (specifically, on the bearing plate 12) and located on one side of the first side wall, the trigger switch 412 is disposed on one side of the sensor body 411 facing the first side wall, the trigger elastic sheet 413 is disposed on one side of the sensor body 411 facing the first side wall, one end of the trigger elastic sheet 413 close to the inner side of the consumable bin 11 is connected to the sensor body 411, and the other end of the trigger elastic sheet extends onto the trigger switch 412, when the moving base 3 moves from the working station to the holding station, the boss portion 32 can press the trigger elastic sheet 413 and press the trigger switch 412, so as to obtain the position of the moving base 3 and the open state of the door assembly 2. In this embodiment, the triggering of the door sensor 41 is mechanical, resulting in reliable results and low cost. Of course, in other embodiments, the door sensor 41 may also be a visual camera or a laser detection element, and is not limited herein. It should be noted that, as shown in fig. 7, a height adjusting block 42 can be further disposed between the bin gate sensor 41 and the carrying plate 12, and the height adjusting block 42 is used for adjusting the height of the bin gate sensor 41 to match with the boss portion 32.

Preferably, as shown in fig. 7, a first limiting member 122 is disposed on the support frame body 1, as shown in fig. 14, a second limiting member 36 is disposed on the moving base 3, and when the moving base 3 moves along the predetermined direction, the second limiting member 36 can abut against the first limiting member 122, so that the moving base 3 stops at the clamping station, and the moving base 3 is prevented from falling off. Optionally, in this embodiment, the first limiting member 122 is a protruding block structure disposed on an end surface of the bearing plate 12 along the predetermined direction, the second limiting member 36 is a rib configured on the lower surface of the mobile base 3, and when the protruding block structure stops the rib, the mobile base 3 is just limited at the clamping station.

Preferably, as shown in fig. 6, 14-15, the door linkage further includes a moving base locking mechanism 5 disposed on the moving base 3, and the moving base locking mechanism 5 can mechanically lock the moving base 3 to the working station. Thereby make be located on the mobile base 3 and be located the consumptive material 100 in consumptive material storehouse 11 along presetting the direction holding position stability, avoid influencing the reliability that consumptive material 100 and actuating mechanism 8 are connected because of consumptive material 100 takes place the position drunkenness in presetting the direction.

In this embodiment, thrombus suction apparatus can realize washing the switching between the exhaust operating mode, spout medicine thrombolysis operating mode, thrombus suction operating mode. Wherein, when carrying out washing exhaust operating mode and spouting medicine thrombolysis operating mode, need to keep the disconnection state between waste liquid collection bag 140 and the pump assembly 110, and when carrying out the thrombus suction operating mode, need to keep the connected state between waste liquid collection bag 140 and the pump assembly 110. Therefore, as shown in fig. 15, 16, and 18, the thrombus aspiration device further includes a tube clamping assembly 93, and the tube clamping assembly 93 includes a body portion 933, and a tube clamping valve 931 is mounted in the body portion 933 (the detailed structure of the tube clamping valve 931 is not shown in this embodiment). The waste liquid pipe 130 of the consumable has a horizontal section, the horizontal section extends along the direction of the horizontal and vertical preset direction, a clamping hole 932 is arranged on the body part 933, the extending direction of the clamping hole 932 is parallel to the horizontal section, and the clamping hole 932 is also provided with an inlet towards one side of the consumable 100, after the horizontal section of the waste liquid pipe 130 is inserted into the clamping hole 932 from the inlet of the clamping hole 932, a clamping valve 931 performs clamping action, so that the waste liquid pipe 130 can be clamped, at the moment, the connection between the waste liquid collecting bag 140 and the pump assembly 110 is disconnected, and after the clamping valve 931 is loosened, the pump assembly 110 is communicated with waste liquid collection.

After the movable base 3 drives the consumable 100 to move into the consumable bin 11, if it is required to ensure that the consumable 100 can normally work, firstly, it is required to ensure that the position of the consumable 100 just moves to the position right below the driving mechanism 8, so as to be smoothly butted with the driving mechanism 8; secondly, the waste liquid pipe 130 is required to be ensured to be accurately inserted into the clamping hole 932; thirdly, the overall height of the pump assembly 110 is high, and the pump assembly 110 needs to be limited, so as to avoid the pump assembly 110 from shaking during operation. The structural design of the thrombus suction equipment in the prior art is not reasonable enough, and the requirements can not be met simultaneously.

Preferably, as shown in fig. 16, the thrombus suction device further comprises a limiting base 91, and the limiting base 91 is fixedly connected with the support frame body 1. Specifically, spacing base 91 includes bottom plate portion 911 and spacing portion 912, and bottom plate portion 911 is parallel and the laminating setting with loading board 12, and spacing portion 912 is located the one end of bottom plate portion 911, and highly is higher than bottom plate portion 911 for spacing portion 912, and spacing portion 912 is used for stopping at predetermineeing the direction and removes base 3 to guarantee to remove the accuracy of base 3 position, and then guarantee that consumptive material 100 can accurately arrive actuating mechanism 8 under. The movable base 3 can slide above the bottom plate portion 911 along a predetermined direction, and when the movable base 3 is in place (i.e., after being stopped by the limiting portion 912), the bottom plate portion 911 can support the lower end surface of the consumable 100.

Preferably, as shown in fig. 16-18, the thrombus suction device further includes a consumable limiting plate 92, the limiting plate is fixed on the limiting portion 912, an arc groove 921 is formed on the consumable limiting plate 92, the arc groove 921 can be clamped on the peripheral surface of the consumable 100, the distance between the upper surface of the consumable limiting plate 92 and the upper surface of the bottom plate portion 911 is H1, and H1 is greater than or equal to 1/5 of the total height of the consumable 100; the tube clamping assembly 93 is arranged on the consumable limiting plate 92, the opening height H2 of the clamping hole 932 is 1-1.2 times of the diameter of the waste liquid tube 130, the tube clamping valve 931 is used for clamping the waste liquid tube 130 in the clamping hole 932, and the operating current I of the tube clamping valve 931 is larger than or equal to 0.4A.

In some embodiments, the pinch valve 931 is not configured with an energy saving chip, and the operating current of the pinch valve 931 is not less than 1.5A. In this embodiment, the pinch valve 931 is configured with an energy-saving chip, and at this time, the working current of the pinch valve 931 is not less than 0.4A.

The thrombus suction apparatus of this embodiment, with consumptive material 100 centre gripping on moving base 3 and along predetermineeing the direction and pushing away to spacing base 91 department, it indicates that consumptive material 100 accurately targets in place (reacing the work station promptly) to move base 3 and spacing portion 912 butt back, highly set up to 1-1.2 times of waste liquid pipe 130 diameter through pressing from both sides dress hole 932 with pressing from both sides pipe assembly 93, make when consumptive material 100 pushes away and targets in place, waste liquid pipe 130 accurately enters into pressing from both sides dress hole 932, through setting up consumptive material limiting plate 92 and make consumptive material limiting plate 92 not less than 1/5 of consumptive material 100 total height to the centre gripping height of consumptive material 100, thereby can provide reliable and stable clamping force to the consumptive material, guarantee the stability of consumptive material 100 operation process. Under the condition that the distance between the waste liquid pipe 130 of the consumable 100 and the lowest end of the consumable 100 is constant, the arrangement of the height of the consumable limiting plate 92 and the arrangement of the opening height of the clamping hole 932 enable the space reserved for the coil of the pinch valve 931 to be smaller, so that the clamping force provided by the pinch valve 931 is influenced.

Preferably, as shown in fig. 17, the thrombus aspiration device further includes a consumable in-position detection assembly 94, the consumable in-position detection assembly 94 is disposed on the position limiting portion 912, and the consumable in-position detection assembly 94 is configured to detect whether a consumable is in position. Specifically, the consumable in-place detection assembly 94 can be a proximity switch, the trigger portion of the proximity switch penetrates through the limiting portion 912 of the limiting base 91, and the trigger portion can be extruded when the consumable 100 is in place, so that the consumable in-place detection assembly 94 obtains the information that the consumable is in place. Of course, in other embodiments, the specific structure of the consumable in-place detecting assembly 94 is not limited thereto, and is not limited thereto.

Preferably, as shown in fig. 18, the thrombus aspiration device further comprises a waste tube in-position detection assembly 95, wherein the waste tube in-position detection assembly 95 is configured to detect whether the waste tube 130 is clamped in the clamping hole 932, so that the thrombus aspiration device can accurately obtain whether the waste tube 130 reaches a position accurately clamped by the clamping tube valve 931, and the operation safety of the thrombus aspiration device is ensured. Specifically, the waste-pipe-in-place detecting assembly 95 may be a proximity switch, a trigger portion of the proximity switch extends into the clipping hole 932, and the trigger portion is pressed when the waste pipe 130 reaches the clipping hole 932, so that the waste-pipe-in-place detecting assembly 95 obtains information that the waste pipe 130 is in place. Of course, in other embodiments, the specific structure of the waste liquid pipe position detecting assembly 95 is not limited thereto, and is not limited thereto.

Preferably, as shown in fig. 15, the distance between the central axis of the clamping hole 932 and the vertical central axis of the pump assembly 110 of the consumable 100 in place is L1 (not shown), the distance between the central axis of the horizontal segment of the waste liquid tube 130 and the vertical central axis of the pump assembly 110 of the consumable 100 is L2 (not shown), and L1= L2. Through the setting of this size, can guarantee the central axis of waste liquid pipe 130 and the central axis collineation of pressing from both sides dress hole 932 to guarantee that pinch valve 931 can the accurate tight waste liquid pipe 130 of clamp, guarantee the safety of thrombus suction equipment when the operation.

Preferably, as shown in fig. 5 and fig. 15, the vertical mounting plate 13 is provided with an avoiding hole 131, at least part of the tube clamping assembly 93 penetrates through the avoiding hole 131, the pump assembly 110 can be arranged closer to the vertical mounting plate 13 due to the arrangement, and then the driving mechanism 8 can be arranged closer to the vertical mounting plate 13, so that the running stability of the thrombus suction device is ensured, and the rigidity and the strength of the whole structure can be improved.

Preferably, as shown in fig. 14 and 19, an avoiding groove 35 is formed on the movable base 3, an opening of the avoiding groove 35 is disposed toward the tube clamping assembly 93, and when the consumable 100 is in place, the tube clamping assembly 93 is at least partially accommodated in the avoiding groove 35. This kind of setting makes the structure of pressing from both sides pipe subassembly 93 and moving base 3 in the direction of predetermineeing more compact, and then makes consumptive material 100 after targetting in place more be close to vertical mounting panel 13, corresponds to make actuating mechanism 8 more be close to vertical mounting panel 13, guarantees the stationarity of thrombus suction device operation, also can improve overall structure's rigidity and intensity.

When the consumable 100 is in place, the driving mechanism 8 is required to drive the consumable docking mechanism 7 to connect with the piston 120 of the consumable 100. Consumable docking mechanism 7 among the prior art needs actuating mechanism 8 to drive when pressing from both sides tightly and unclamping consumable 100, and the structure is complicated, the reliability is poor, the fault rate is high, and thrombus suction equipment accomplishes consumable 100 and 8 butt joints with actuating mechanism 8 and the action of dismantling many, the process is loaded down with trivial details.

In view of the above problem, it is preferable that the consumable docking mechanism 7 includes a holder assembly 71 and several clamping assemblies 72, as shown in fig. 20 to 23. Wherein the mounting bracket assembly 71 is connected to the output of the drive mechanism 8, i.e. to the nut 83. A clamping cavity 714 is formed in a first end face 7111 (and a lower end face) of the fixing frame assembly 71, an unloading channel 7112 is formed in the peripheral face of the fixing frame assembly 71, the unloading channel 7112 is communicated with the clamping cavity 714 and penetrates through the first end face 7111, one end of the clamping assembly 72 is elastically connected into the fixing frame assembly 71, the other end of the clamping assembly 72 can extend out of or retract into the fixing frame assembly 71 from the side wall of the clamping cavity 714, the end portion of the piston 120 can extend into the clamping cavity 714 in the reciprocating direction, the clamping assemblies 72 can lock the end 1201 of the piston 120, and the unloading channel 7112 can enable the piston 120 to leave from the clamping cavity 714 in the radial direction of the piston 120.

In this embodiment, when consumable 100 is docked, only driving mechanism 8 needs to drive consumable docking mechanism 7 to approach piston 120 downwards along the vertical direction (also the reciprocating direction of piston 120), and tip 1201 of piston 120 enters clamping cavity 714, at this time, tip 1201 of piston 120 extrudes clamping assembly 72, so that clamping assembly 72 retracts into fixing frame assembly 71, thereby enabling the end of piston 120 to smoothly extend into clamping cavity 714, at this time, clamping assembly 72 is opposite to rod portion 1202 of piston 120 with a thinner end, so that clamping assembly 72 extends into clamping cavity 714 and clamps rod portion 1202 of piston 120, thereby being capable of limiting tip 1201 from falling out of clamping cavity 714 along the moving direction of piston 120, and further realizing docking of consumable 100 and consumable docking mechanism 7. The movement of the whole consumable docking mechanism 7 can share one driving mechanism 8 with the reciprocating movement of the piston 120, and the consumable docking mechanism 7 does not need an additional driving source for clamping the consumable 100. When the consumable material 100 and the consumable material docking mechanism 7 are required to be separated, as shown in fig. 21, the movable base 3 is pulled along the horizontal preset direction, the movable base 3 drives the consumable material 100 to move along the radial direction of the fixing frame assembly 71, so that the piston 120 can be taken down from the unloading channel 7112 on the circumferential surface of the fixing frame assembly 71, and the consumable material docking mechanism 7 does not need to perform a releasing action and move to an avoiding position. In the consumable docking mechanism 7 of this embodiment, docking and releasing of the consumable 100 are mainly realized by the mechanical structure itself, and the consumable docking mechanism requires fewer driving components and has good reliability; and the process of clamping and releasing the consumable 100 performs few actions, so that the process of disassembling and assembling the consumable 100 is simple and convenient.

Specifically, in this embodiment, as shown in fig. 22, the consumable docking mechanism 7 includes three clamping assemblies 72, and the three clamping assemblies 72 are uniformly distributed along the circumferential direction of the fixing frame assembly 71. In other embodiments, the consumable docking mechanism 7 may be provided with two, four or more clamping assemblies 72, which is not limited herein.

As shown in FIG. 22, three receiving slots 7113 are formed in the inner wall of the clamping cavity 714 and extend radially from the clamping cavity 714, and each clamping assembly 72 is connected to one of the receiving slots 7113. The clamping assembly 72 comprises a limiting claw 721 and a third elastic member 722 which both extend along the radial direction of the clamping cavity 714, the third elastic member 722 is arranged in the accommodating groove 7113, and two ends of the third elastic member 722 are respectively connected with one end of the fixed frame assembly 71 and one end of the limiting claw 721, when the limiting claw 721 is extruded by the end 1201 of the piston 120, the third elastic member 722 is compressed, so that the limiting claw 721 can be completely retracted into the accommodating groove 7113 to avoid; when the head 1201 does not press the limiting claw 721, the third elastic member 722 is reset, and a part of the limiting claw 721 extends into the clamping cavity 714.

Preferably, as shown in fig. 22 and 23, the limiting claw 721 is provided with a waist-shaped hole 7211 extending in the radial direction of the clamping cavity 714, the clamping assembly 72 further includes a limiting pin 723, one end of the limiting pin 723 is connected with the fixing frame assembly 71, the other end of the limiting pin 723 extends into the corresponding waist-shaped hole 7211, and the limiting pin 723 is used for limiting the stroke of the limiting claw 721, so that the limiting claw 721 is prevented from falling from the limiting groove.

Preferably, as shown in fig. 23, the other end of the limiting claw 721 (i.e., the end that can extend into the clamping cavity 714) is provided with a chamfer 7212, the chamfer 7212 is used for abutting against the end of the piston when the end of the piston extends into the clamping cavity 714, and the chamfer 7212 can play a transition role, so that the tip 1201 can be smoothly inserted into the clamping cavity 714. The limiting claw 721 extends into one end of the clamping cavity 714 and one side of the limiting claw which is away from the opening of the clamping cavity 714 is not provided with a chamfer, so the end 1201 cannot fall down from the limiting claw 721.

Preferably, as shown in fig. 22 to 24, the fixing frame assembly 71 includes a fixing frame body 711 and a tip mounting seat 712 that are detachably connected, the unloading channel 7112 is disposed on the fixing frame body 711, a through cavity 7114 is disposed on the fixing frame body 711, an arc-shaped groove 7121 is disposed on the tip mounting seat 712, the through cavity 7114 and the arc-shaped groove 7121 enclose to form a clamping cavity 714, so that the clamping cavity 714 is matched in shape with the piston 120, the stability of the consumable docking mechanism 7 for fixing the piston 120 is ensured, and the fixing frame assembly 71 is configured as two detachable components to facilitate processing of the arc-shaped groove 7121.

Further, in this embodiment, as shown in fig. 22 and 23, the receiving groove 7113 is disposed on the fixing frame body 711, and the receiving groove 7113 penetrates the fixing frame body 711 downward, and the fixing frame assembly 71 further includes a blocking plate 715, and the blocking plate 715 is connected below the fixing frame body 711 to block and receive the receiving groove 7113. The accommodating groove 7113 is more convenient to process through the matching of the fixing frame body 711 and the blocking plate 715.

Further, as shown in fig. 24, a placing groove 7115 is further disposed on the fixing frame body 711, a pressure sensor assembly is disposed in the placing groove 7115, the end mounting seat 712 abuts against the pressure sensor assembly, the fixing frame assembly 71 further includes a pressing plate 713, and the pressing plate 713 is connected with the fixing frame body 711 to limit the pressure sensor in the placing groove 7115. The pressure sensor assembly can monitor the force condition of the piston 120 of the pump assembly 110, and then determine whether there is air in the pump chamber, so as to ensure the safety of the interventional operation.

Preferably, as shown in fig. 24 and 25, the consumable docking mechanism 7 further includes an in-place sensor assembly 73, and the in-place sensor assembly 73 can detect whether the piston 120 is clamped into the clamping cavity 714, so as to determine whether the consumable 100 is successfully docked with the consumable docking mechanism 7, thereby ensuring reliability of transmission. Specifically, as shown in fig. 25, the in-position sensor assembly 73 includes a sensor body 731, a stylus 732, and a fourth elastic member 733. The sensor body 731 is arranged in the fixing frame assembly 71, the contact pin 732 is movably connected to the fixing frame assembly 71, one end of the contact pin 732 can extend into the clamping cavity 714, or retract into the fixing frame assembly 71 so that the other end of the contact pin 732 presses against and triggers the sensor body 731, two ends of the fourth elastic part 733 are respectively connected with the fixing frame assembly 71 and the contact pin 732, and the fourth elastic part 733 is used for enabling one end of the contact pin 732 to extend into the clamping cavity 714.

After the end of the piston 120 is completely clamped into the clamping cavity 714, the tip 1201 presses the contact pin 732 into the fixing frame assembly 71 and abuts against the sensor body 731, so that the sensor body 731 is triggered, and the thrombus suction device obtains information about accurate docking of the piston 120 and the consumable docking device. When the piston 120 is removed from the clamping cavity 714, the contact pin 732 is re-inserted into the clamping cavity 714 by the fourth elastic member 733 for the next detection. In this embodiment, the fourth elastic member 733 is a spring. The end surface of contact pin 732 that extends into snap-fit cavity 714 is spherical, thereby reducing wear between contact pin 732 and tip 1201.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the invention and are not intended to limit the embodiments of the present invention, and that the technical spirit of the present invention may be changed by those skilled in the art in the aspects of the specific embodiments and the application scope, and the content of the present specification should not be construed as limiting the invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a door aggregate unit installs on supporting frame body (1), consumable material storehouse (11) have been seted up on supporting frame body (1), its characterized in that, door aggregate unit includes:

the bin gate assembly (2) is connected with the support frame body (1), and the bin gate assembly (2) is used for opening or closing the consumable bin (11);

the movable base (3) is provided with a clamping part for clamping consumables, and the movable base (3) can move relative to the support frame body (1) along a preset direction so that the movable base (3) is provided with a working station and a clamping station, wherein part of the working station is positioned outside the consumable bin (11), the clamping part is positioned in the consumable bin (11), and the clamping station is positioned outside the consumable bin (11);

the bin gate assembly (2) is in mechanical linkage with the movable base (3) so that the movable base (3) drives the bin gate assembly (2) to be opened when moving from the working station to the clamping station.

2. A door linkage according to claim 1, characterized in that the door assembly (2) comprises:

the door shaft (21) is arranged on the support frame body (1);

the door body (22) is in rotating fit with the door shaft (21);

torsional spring (23), the cover is located door-hinge (21) and two tip respectively with support frame body (1) with the looks butt of the door body (22), torsional spring (23) are disposed remove base (3) and move extremely make during the workstation the door body (22) are closed consumptive material storehouse (11).

3. A door linkage according to claim 2, characterized in that a guide slope (31) is provided on the side wall of said moving base (3) parallel to said preset direction;

the door body (22) comprises a first shaft cylinder part (221), a door panel (222) and a linkage part (223), the first shaft cylinder part (221) is sleeved on the door shaft (21) and can rotate relative to the door shaft (21), the door panel (222) is connected with the first shaft cylinder part (221) and used for opening or closing the consumable bin (11), and the linkage part (223) extends from the first shaft cylinder part (221) to a direction close to the movable base (3);

when the movable base (3) moves from the working station to the clamping station, the guide inclined plane (31) presses and pushes the linkage part (223) so that the door body (22) is opened.

4. A door linkage according to claim 3, characterized in that said door assembly (2) further comprises a roller (24), said roller (24) being rotatably connected to said linkage portion (223), an axis of rotation of said roller (24) being arranged in parallel with said door shaft (21), said roller (24) being configured to abut against said guide ramp (31).

5. A door linkage according to any of the claims 1 to 4, characterized in that it further comprises a door sensor (41), said door sensor (41) being arranged on said support frame (1), said door sensor (41) being adapted to detect the opening state of said door assembly (2).

6. A door linkage according to claim 5, characterized in that a boss portion (32) is provided on a first side wall of the mobile base (3) parallel to the preset direction and at an end extending into the consumable bin (11);

the bin gate sensor (41) comprises a sensor body (411), a trigger switch (412) and a trigger elastic sheet (413), wherein the sensor body (411) is installed on the support frame body (1) and located on one side of the first side wall, the trigger switch (412) is arranged on one side, facing the first side wall, of the sensor body (411), the trigger elastic sheet (413) is arranged on one side, facing the first side wall, of the sensor body (411), one end, close to the inner side of the consumable bin (11), of the trigger elastic sheet (413) is connected to the sensor body (411), and the other end of the trigger elastic sheet extends to the trigger switch (412);

when the movable base (3) moves from the working station to the clamping station, the boss part (32) can be abutted against the trigger elastic sheet (413) and extrude the trigger switch (412).

7. A door linkage according to any of the claims 1 to 4, characterized in that it further comprises a mobile base locking mechanism (5) provided on said mobile base (3), said mobile base locking mechanism (5) being configured to enable mechanical locking of said mobile base (3) to said work station and to enable unlocking of said mobile base (3) when pressed.

8. A door linkage device according to any one of claims 1 to 4, characterized in that a first limiting member (122) is provided on the support frame (1), a second limiting member (36) is provided on the movable base (3), and when the movable base (3) moves along the predetermined direction, the second limiting member (36) can abut against the first limiting member (122), so that the movable base (3) stops at the clamping station.

9. A door linkage according to any of the claims 1 to 4, characterized in that said support frame (1) comprises a carrying plate (12) constituting the bottom plate of said consumable magazine (11), said carrying plate (12) being provided with a plurality of linear guides (61) extending in a predetermined direction;

a plurality of sliding blocks (62) are arranged on the movable base (3), and the sliding blocks (62) are in sliding fit with the linear guide rails (61).

10. A thrombus aspiration apparatus comprising the door linkage of any one of claims 1 to 9.