CN215461413U - Quick assembly disassembly structure of blood pump head - Google Patents
Quick assembly disassembly structure of blood pump head Download PDFInfo
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- CN215461413U CN215461413U CN202120126020.9U CN202120126020U CN215461413U CN 215461413 U CN215461413 U CN 215461413U CN 202120126020 U CN202120126020 U CN 202120126020U CN 215461413 U CN215461413 U CN 215461413U
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- pump head
- pump
- assembly structure
- rapid disassembly
- blood pump
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Abstract
The utility model discloses a rapid disassembly and assembly structure of a pump head of a blood pump, which comprises a pump head seat and a locking structure, wherein a groove is formed in the upper surface of the pump head seat, the locking structure is arranged at the edge of the upper surface of the pump head seat, and the locking structure is used for limiting the circumferential movement of the pump head arranged on the groove. Compared with the prior art, the rapid disassembly and assembly structure of the pump head of the blood pump provided by the utility model has the advantages of simple structure, convenience and rapidness in disassembly and assembly, difficulty in damage of the pump head, and better reliability and safety.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a rapid disassembly and assembly structure of a pump head of a blood pump.
Background
At present, a blood pump of an extracorporeal ventricular circulation auxiliary system for medical treatment mainly comprises a pump head and a driving device, wherein the pump head is a disposable consumable, and is fixedly connected with the driving device when in use, and the used pump head is taken down to replace a new pump head after use.
In the prior art, the mounting structure of the pump head is generally axially fixed through a buckle, and radial locking is realized by using a locking screw. This mounting structure has the following drawbacks: screws need to be screwed when the pump heads are fixed and disassembled, the operation is relatively complicated and time-consuming, and the use is inconvenient; the force of screwing the screw is difficult to grasp, the pump head can be loosened if the force is light, and the shell of the pump head can be damaged if the force is heavy, so that certain potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a rapid disassembly and assembly structure of a pump head of a blood pump, which aims to solve the problems of inconvenience in use and potential safety hazard in the prior art.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the utility model provides a quick assembly disassembly structure of blood pump head, includes pump head seat and locking structure, pump head seat upper surface is provided with the slot, locking structure sets up pump head seat upper surface edge, locking structure is used for the restriction to install pump head circumferential direction on the slot.
The locking structure is including fixing base, elastic component and moving part in the pump head seat, elastic component one end with the cooperation of the first fixed knot structure of moving part lower surface, the elastic component other end with the cooperation of the second fixed knot structure of base upper surface, the moving part passes through the flexible of elastic component with the pump head butt or loosen in order to install or dismantle the pump head.
The base includes the pedestal, the pedestal both sides respectively set up a fixed block, be provided with the fixed orifices on the fixed block, the third fixed knot constructs and passes the fixed orifices will the pedestal is fixed the pump head seat lower surface.
The elastic piece is a spring.
The movable part comprises a pressing rod, an ejector rod and a connecting rod, the pressing rod is vertically arranged at one end of the connecting rod, the ejector rod is vertically arranged at the other end of the connecting rod, the ejector rod is driven to move up and down through the up-down movement of the pressing rod, and the top end of the ejector rod is abutted to or loosened from the pump head to install or disassemble the pump head.
The edge of the upper surface of the pump head base is provided with a first positioning hole, the pressing rod is vertically arranged in the first positioning hole in a sliding mode, a second positioning hole is formed in the lower surface of the groove, and the top end of the ejector rod corresponds to the second positioning hole.
The height of the pressure lever is greater than that of the ejector rod.
The top surface of the ejector rod is arc-shaped.
A clamping groove is formed in the inner side wall of the groove of the pump head seat, and the clamping groove is matched with the buckle on the pump head to limit axial movement of the pump head
The circumference of pump head bottom edge is equipped with a plurality of recess, ejector pin and recess cooperation in order to restrict the pump head circumference removes.
The utility model has the beneficial effects that:
compared with the prior art, the rapid disassembly and assembly structure of the pump head of the blood pump provided by the utility model has the advantages of simple structure, convenience and rapidness in disassembly and assembly, difficulty in damage of the pump head, and better reliability and safety.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a bottom structure diagram of the pump head base of the present invention.
Fig. 4 is a schematic view of the locking structure of the present invention.
FIG. 5 is a schematic view of the structure of the moveable member of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It should be noted that, for the convenience of description, only a part of the structure related to the present invention is shown in the drawings, not the whole structure.
As shown in fig. 1-2, in an embodiment of the present invention, a rapid-assembling and disassembling structure for a pump head of a blood pump is provided, which includes a pump head base 2 and a locking structure, wherein a groove 21 is formed on an upper surface of the pump head base 2, the locking structure is disposed at an edge of the upper surface of the pump head base 2, and the locking structure is used for limiting circumferential movement of a pump head 1 mounted on the groove 21.
In use, the pump head mount 2 is fixed to the top of the actuator 3 and the pump head 1 is rotatably connected to the channel 21 and is restrained against axial movement by the locking structure.
Preferably, the groove 21 is of annular configuration, and correspondingly, the part of the pump head 1 that mates with the groove 21 is also of annular configuration.
As shown in fig. 2-5, the locking structure includes a base fixed in the head base, an elastic element 46 and a movable element, one end of the elastic element 46 is engaged with a first fixing structure 44 on the lower surface of the movable element, the other end of the elastic element 46 is engaged with a second fixing structure 45 on the upper surface of the base, and the movable element is abutted against or released from the pump head 1 by the expansion and contraction of the elastic element 46 to mount or dismount the pump head 1.
Specifically, the first fixing structure 44 is a pillar vertically disposed on the lower surface of the movable member, the second fixing structure 45 is an opening disposed on the upper surface of the base, and the other end of the elastic member 46 is fixed at the bottom inside the opening.
The base comprises a base body 47, two fixing blocks 48 are respectively arranged on two sides of the base body 47, fixing holes 49 are formed in the fixing blocks 48, and the third fixing structure penetrates through the fixing holes 49 to fix the base body 47 on the lower surface of the pump head base 2.
Specifically, the third fixing structure is a self-tapping screw, a bolt, a pin, or the like.
The movable part comprises a pressure lever 42, a push rod 41 and a connecting rod 43, the pressure lever 42 is vertically arranged at one end of the connecting rod 43, the push rod 41 is vertically arranged at the other end of the connecting rod 43, the push rod 41 is driven to move up and down through the up-and-down movement of the pressure lever 42, and the top end of the push rod 41 is abutted to or loosened from the pump head 1 to install or disassemble the pump head 1.
The edge of the upper surface of the pump head seat 2 is provided with a first positioning hole 24, the pressure rod 42 is vertically arranged in the first positioning hole 24 in a sliding manner, the lower surface of the groove 21 is provided with a second positioning hole 23, and the top end of the ejector rod 41 is arranged corresponding to the second positioning hole 23.
The height of the pressing rod 42 is greater than that of the top rod 41.
Preferably, the top surface of the jack 41 is circular arc-shaped.
Preferably, the resilient member 46 is a spring
Be provided with draw-in groove 22 on the slot 21, be equipped with the buckle 12 that matches each other with draw-in groove 22 on the pump head 1, after the pump head 1 installation, the buckle 12 is arranged in draw-in groove 22, through the cooperation of buckle 12 and draw-in groove 22 with restriction pump head 1 axial displacement.
The edge of the bottom end of the pump head 1 is circumferentially provided with a plurality of grooves 11, and the ejector rod 41 is matched with the grooves 11 to limit the circumferential movement of the pump head 1.
Preferably, the grooves 11 are inverted V-shaped or arc-shaped, and a plurality of grooves 11 are arranged at intervals along the circumference of the pump head 1 and are uniformly distributed.
In a preferred embodiment, there are 3 snaps 12 on the pump head 1, the 3 snaps 12 being evenly spaced along the circumference of the pump head 1; correspondingly, the number of the clamping grooves 22 on the pump head seat 2 is 3, and similarly, the 3 clamping grooves 22 are uniformly distributed along the circumferential direction of the pump head seat 2 at intervals and are matched with the buckles 12 for use.
When the pump head 1 is mounted, the snap 12 is placed in the groove 21 to restrict the axial movement of the pump head 1 and to connect the pump head 1 and the pump head base 2 together.
During the use, press depression bar 42, the ejector pin 41 that drives and depression bar 42 body coupling moves down, pump head 1 is kept away from on the top of ejector pin 41, the spring is compressed, align buckle 12 on the pump head 1 with the draw-in groove 22 of the last relevant position of pump head seat 2, loosen depression bar 42 again, the elastic restoring force of elastic component 46 can be with depression bar 42 and ejector pin 41 jack-up simultaneously and upward movement, move towards the direction that is close to pump head 1 promptly, the top of ejector pin 41 is arranged in and is connected on the recess 11 that corresponds in pump head 1 bottom, thereby lock pump head 1, in order to restrict its circumferential direction.
When the pump head 1 needs to be removed or replaced, the pressing rod 42 is pressed, the push rod 41 integrally connected with the pressing rod 42 moves downwards, the top end of the push rod 41 is far away from and loosens the pump head 1, the elastic piece 46 is compressed, the clamping state of the groove 11 on the pump head 1 and the top end of the push rod 41 is released, and the pump head 1 can be taken down from the pump head base 2 so as to be replaced by a new pump head.
The mounting structure of the utility model has simple structure, is very convenient when the pump head is disassembled and assembled, has less damage to the pump head in the process of disassembling and assembling the pump head, has better reliability and safety, improves the disassembling and assembling efficiency and is convenient for users to use.
The above embodiments and drawings are only for illustrating the technical solutions of the present invention and do not limit the present invention. It should be noted that, a person skilled in the art may modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for part or all of the technical features, and such modifications or substitutions are included in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a quick assembly disassembly structure of blood pump head which characterized in that: including pump head seat and locking structure, the pump head seat upper surface is provided with the slot, locking structure sets up pump head seat upper surface edge, locking structure is used for the restriction to install pump head circumferential direction on the slot removes.
2. The rapid disassembly and assembly structure of a pump head of a blood pump according to claim 1, wherein: the locking structure is including fixing base, elastic component and moving part in the pump head seat, elastic component one end with the cooperation of the first fixed knot structure of moving part lower surface, the elastic component other end with the cooperation of the second fixed knot structure of base upper surface, the moving part passes through the flexible of elastic component with the pump head butt or loosen in order to install or dismantle the pump head.
3. The rapid disassembly and assembly structure of a pump head of a blood pump according to claim 2, wherein: the base includes the pedestal, the pedestal both sides respectively set up a fixed block, be provided with the fixed orifices on the fixed block, the third fixed knot constructs and passes the fixed orifices will the pedestal is fixed the pump head seat lower surface.
4. The rapid disassembly and assembly structure of a pump head of a blood pump according to claim 2, wherein: the elastic piece is a spring.
5. The rapid disassembly and assembly structure of a pump head of a blood pump according to claim 2, wherein: the movable part comprises a pressing rod, an ejector rod and a connecting rod, the pressing rod is vertically arranged at one end of the connecting rod, the ejector rod is vertically arranged at the other end of the connecting rod, the ejector rod is driven to move up and down through the up-down movement of the pressing rod, and the top end of the ejector rod is abutted to or loosened from the pump head to install or disassemble the pump head.
6. A rapid disassembly and assembly structure of a pump head of a blood pump according to claim 5, wherein: the edge of the upper surface of the pump head base is provided with a first positioning hole, the pressing rod is vertically arranged in the first positioning hole in a sliding mode, a second positioning hole is formed in the groove, and the top end of the ejector rod corresponds to the second positioning hole.
7. A rapid disassembly and assembly structure of a pump head of a blood pump according to claim 5, wherein: the height of the pressure lever is greater than that of the ejector rod.
8. A rapid disassembly and assembly structure of a pump head of a blood pump according to claim 5, wherein: the top surface of the ejector rod is arc-shaped.
9. The rapid disassembly and assembly structure of a pump head of a blood pump according to claim 1, wherein: a clamping groove is formed in the inner side wall of the groove of the pump head seat, and the clamping groove is matched with the buckle on the pump head to limit axial movement of the pump head
10. The rapid disassembly and assembly structure of a pump head of a blood pump according to claim 2, wherein: the circumference of pump head bottom edge is equipped with a plurality of recess, ejector pin and recess cooperation in order to restrict the pump head circumference removes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120126020.9U CN215461413U (en) | 2021-01-18 | 2021-01-18 | Quick assembly disassembly structure of blood pump head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120126020.9U CN215461413U (en) | 2021-01-18 | 2021-01-18 | Quick assembly disassembly structure of blood pump head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215461413U true CN215461413U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120126020.9U Active CN215461413U (en) | 2021-01-18 | 2021-01-18 | Quick assembly disassembly structure of blood pump head |
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| CN (1) | CN215461413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116036464A (en) * | 2022-12-28 | 2023-05-02 | 苏州心擎医疗技术有限公司 | Magnetic suspension blood pump with pump head quick disassembly structure |
-
2021
- 2021-01-18 CN CN202120126020.9U patent/CN215461413U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116036464A (en) * | 2022-12-28 | 2023-05-02 | 苏州心擎医疗技术有限公司 | Magnetic suspension blood pump with pump head quick disassembly structure |
| CN116036464B (en) * | 2022-12-28 | 2023-12-01 | 心擎医疗（苏州）股份有限公司 | Magnetic suspension blood pump with pump head quick disassembly structure |
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