Heparin pump capable of detecting type of injector

Abstract

The utility model discloses a heparin pump capable of detecting the type of an injector, relates to the technical field of medical instruments, and can solve the problem that an existing heparin pump cannot detect the size of the injector. The heparin pump capable of detecting the type of the injector comprises an injector fixing shell, an installation structure and a clamping assembly, wherein the injector fixing shell and the installation structure are installed on a pump body installation plate. The detection ends of the detection assembly abut against the clamping assembly, and the detection assembly comprises a first detection unit and a second detection unit which are installed on the installation structure; when an injector is installed, the end of the clamping assembly gets close to the injector fixing shell in the axial direction of the clamping assembly. When the injector is not installed, the distance between the detection end of the first detection unit and the end of the first detection unit in the axial direction of the clamping assembly is smaller than the outer diameter of the injector of the first type. The distance between the detection end of the second detection unit and the end of the second detection unit in the axial direction of the clamping assembly is larger than the outer diameter of the first-type injector and smaller than the outer diameter of the second-type injector.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a heparin pump capable of detecting syringe models. Background Technology

[0002] The heparin pump is one of the key components of a hemodialysis machine. Its function is to continuously inject heparin into hemodialysis patients to prevent blood clotting.

[0003] Referring to our company's existing patent, application number: CN201720246533.7, entitled "Utility Model Patent for Heparin Pump", when in use, by placing the syringe on the heparin pump, heparin can be ejected at a stable speed and force, thereby stably controlling the injection volume of heparin.

[0004] However, in actual clinical use, different syringe sizes are used for different patients. Syringe sizes typically include 20ml, 30ml, and 50ml syringes. Different syringe sizes correspond to different syringe tubing diameters, and for the same injection distance, different syringe sizes deliver different amounts of heparin. Existing heparin pumps lack syringe size detection capabilities, making it difficult to control the heparin injection rate when using different syringe sizes.

[0005] Therefore, there is an urgent need for a heparin pump that can detect the syringe model to solve the above problems. Summary of the Invention

[0006] The purpose of this application is to provide a heparin pump that can detect the syringe model, thereby solving the problem that existing heparin pumps cannot detect the syringe size.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0008] This application provides a heparin pump capable of detecting syringe model, including a syringe fixing shell mounted on a pump body mounting plate, and a clamping assembly for clamping the syringe in cooperation with the syringe fixing shell, and also includes a mounting structure mounted on the pump body mounting plate for mounting the detection assembly.

[0009] It also includes a detection assembly in which the detection ends are pressed against the clamping assembly. The detection assembly includes a first detection unit and a second detection unit, both of which are mounted on the mounting structure.

[0010] When the syringe is installed, the clamping assembly end will approach the syringe retaining housing along its axial direction;

[0011] Without the syringe installed, the distance between the detection end of the first detection unit and the end of the clamping assembly along the axial direction of the clamping assembly is less than the outer diameter of the first type of syringe.

[0012] The distance between the detection end of the second detection unit and the end of the clamping assembly along the axial direction of the clamping assembly is greater than the outer diameter of the first type of syringe and less than the outer diameter of the second type of syringe.

[0013] Optionally, a third detection unit may also be provided on the mounting structure;

[0014] Without the syringe installed, the distance between the detection end of the third detection unit and the end of the clamping assembly along the axial direction of the clamping assembly is greater than the outer diameter of the second-type syringe and less than the outer diameter of the third-type syringe.

[0015] Optionally, the first detection unit, the second detection unit, and the third detection unit are all micro switches, and the detection ends of the micro switches are all pressed against the clamping assembly.

[0016] Optionally, the mounting structure is provided with a first mounting hole, a second mounting hole, and a third mounting hole;

[0017] The first detection unit, the second detection unit, and the third detection unit are detachably mounted on the mounting structure through the first mounting hole, the second mounting hole, and the third mounting hole, respectively.

[0018] Optionally, the first mounting hole, the second mounting hole, and the third mounting hole are all strip-shaped holes, and the length direction of the strip-shaped holes is parallel to the axial direction of the clamping assembly.

[0019] Optionally, the mounting structure is manufactured using an integrated process, and the mounting structure is detachably and fixedly connected to the pump body mounting plate.

[0020] Optionally, the clamping assembly includes a clamping seat, a pull rod, and a spring cylinder that are fixedly connected;

[0021] The pull rod passes through and slides through the syringe housing;

[0022] It also includes a spring body fitted onto the pull rod, with one end of the spring body pressing against the spring cylinder and the other end pressing against the syringe mounting base;

[0023] The detection ends of the detection components are all pressed against the spring cylinder.

[0024] Optionally, the clamping assembly further includes a chuck disposed within the clamping seat;

[0025] The top of the syringe housing is provided with a lower groove, and the bottom of the clamp is provided with an upper groove opposite to the lower groove.

[0026] Optionally, the clamp and the chuck are detachably connected.

[0027] Optionally, the size of the upper groove matches the size of the syringe and is less than or equal to the size of the lower groove.

[0028] The beneficial effects of this utility model are:

[0029] This application solves the problem in the prior art that the syringe size cannot be detected by setting up a detection component where both the clamping component and the detection end are pressed against the clamping component. By utilizing the positional design of the second detection unit and the detection end of the first detection unit of the detection component, the syringe model can be determined according to the trigger signals of the first detection unit and the second detection unit after the syringe is clamped by the clamping component. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application.

[0031] Figure 2 This is a three-dimensional structural diagram of the syringe after removing the fixing shell in an embodiment of this application.

[0032] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure from another perspective.

[0033] Figure 4 This is a three-dimensional structural diagram of the detection component in this application when it is installed on the pump body mounting plate.

[0034] Figure 5 This is a three-dimensional structural diagram of the installation structure in the embodiments of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1-Pump body mounting plate, 2-Injector fixing shell, 201-Lower groove, 3-Clamping assembly, 31-Clamping seat, 32-Clamping head, 321-Upper groove, 33-Pull rod, 34-Spring body, 35-Spring cylinder, 4-Mounting structure, 41-First mounting hole, 42-Second mounting hole, 43-Third mounting hole, 51-First detection unit, 52-Second detection unit, 53-Third detection unit. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0038] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] like Figures 1 to 5 As shown, this embodiment provides a heparin pump that can detect the syringe model, including a syringe fixing shell 2 mounted on a pump body mounting plate 1, and a clamping assembly 3 for clamping the syringe in cooperation with the syringe fixing shell 2, and also includes a mounting structure 4 mounted on the pump body mounting plate 1 for mounting the detection assembly.

[0042] It also includes a detection assembly whose detection ends are all pressed against the clamping assembly 3. The detection assembly includes a first detection unit 51 and a second detection unit 52, both of which are mounted on the mounting structure 4.

[0043] When the syringe is installed, the end of the clamping assembly 3 will approach the syringe retaining housing 2 along its axial direction;

[0044] Without the syringe installed, the distance between the detection end of the first detection unit 51 and the end of the clamping assembly 3 along the axial direction of the clamping assembly 3 is less than the outer diameter of the first type of syringe.

[0045] The distance between the detection end of the second detection unit 52 and the end of the clamping assembly 3 along the axial direction of the clamping assembly 3 is greater than the outer diameter of the first type of syringe and less than the outer diameter of the second type of syringe.

[0046] This embodiment sets up a detection component where both the clamping component 3 and the detection end are pressed against the clamping component 3. By utilizing the positional design of the detection ends of the second detection unit 52 and the first detection unit 51 of the detection component, the syringe model can be determined based on the trigger signals of the first detection unit 51 and the second detection unit 52 after the syringe is clamped by the clamping component 3, thereby solving the problem of not being able to detect syringe size in the prior art.

[0047] Therefore, the contribution of this embodiment is to provide a technical approach that utilizes the position and distance design of multiple detection units to determine the specific model of the syringe by whether or not the end is pressed, thus solving the problem that the current heparin pump cannot determine the model after installing the syringe, resulting in the use of a fixed syringe model and poor adaptability.

[0048] In this embodiment, the first type of syringe used is a 20ml syringe, and the second type of syringe used is a 30ml syringe.

[0049] For example, in this embodiment, after installing a 20ml syringe, only the detection tip of the first detection unit 51 no longer presses against the clamping component 3, while the detection tip of the second detection unit 52 still presses against the clamping component 3. Therefore, it can be determined that the syringe installed at this time is a 20ml syringe. When installing a 30ml syringe, the detection tips of both the first detection unit 51 and the second detection unit 52 no longer press against the clamping component 3, so it can be determined that the syringe is a 30ml syringe.

[0050] Specifically, in this embodiment, a third detection unit 53 is also provided on the mounting structure 4;

[0051] Without the syringe installed, the distance between the detection end of the third detection unit 53 and the end of the clamping assembly 3 along the axial direction of the clamping assembly 3 is greater than the outer diameter of the second-type syringe and less than the outer diameter of the third-type syringe.

[0052] In this embodiment, the third type of syringe is a 50ml syringe. After the 30ml syringe is installed, the third detection unit 53 is still pressed against the clamping component 3. However, after the 50ml syringe is installed, the detection ends of the first detection unit 51, the second detection unit 52, and the third detection unit 53 are no longer pressed against the clamping component 3, thus indicating that the syringe is a 50ml syringe.

[0053] Specifically, in this embodiment, the first detection unit 51, the second detection unit 52, and the third detection unit 53 are all microswitches, and the detection ends of the microswitches are all pressed against the clamping assembly 3. Microswitches are common components and will not be described in detail here.

[0054] Specifically, in this embodiment, the mounting structure 4 is provided with a first mounting hole 41, a second mounting hole 42, and a third mounting hole 43;

[0055] The first detection unit 51, the second detection unit 52, and the third detection unit 53 are detachably mounted on the mounting structure 4 through the first mounting hole 41, the second mounting hole 42, and the third mounting hole 43, respectively, so as to facilitate the disassembly and replacement of the first detection unit 51, the second detection unit 52, and the third detection unit 53. In this embodiment, the first detection unit 51, the second detection unit 52, and the third detection unit 53 are all installed and fixed by bolts.

[0056] Specifically, in this embodiment, such as Figure 5 As shown, the first mounting hole 41, the second mounting hole 42, and the third mounting hole 43 are all strip-shaped holes, and the length direction of the strip-shaped holes is parallel to the axial direction of the clamping assembly 3, which facilitates the adjustment of the positions of the first detection unit 51, the second detection unit 52, and the third detection unit 53.

[0057] Specifically, in this embodiment, such as Figure 5 As shown, the mounting structure 4 is made using an integrated process, and the mounting structure 4 is detachably and fixedly connected to the pump body mounting plate 1. In this embodiment, the mounting structure 4 is made of bent metal plate, and the mounting structure 4 is fixedly connected to the pump body mounting plate 1 by bolts.

[0058] Specifically, in this embodiment, such as Figure 2 and Figure 3 As shown, the clamping assembly 3 includes a clamping seat 31, a pull rod 33, and a spring cylinder 35 that are fixedly connected.

[0059] The pull rod 33 passes through the syringe fixing shell 2 and is slidably connected to it;

[0060] It also includes a spring body 34 fitted onto the pull rod 33, with one end of the spring body 34 pressing against the spring cylinder 35 and the other end pressing against the syringe mounting base;

[0061] The detection ends of the detection components are all pressed against the spring cylinder 35. When installing the syringe, the pull rod 33 pulls the spring cylinder 35 closer to the syringe fixing shell 2, thereby causing the spring cylinder 35 to squeeze the spring body 34. After the syringe is removed, the clamping component 3 can quickly reset under the action of the spring body 34.

[0062] Specifically, in this embodiment, such as Figure 2 and Figure 3 As shown, the clamping assembly 3 also includes a chuck 32 disposed within the clamping base 31;

[0063] The top of the syringe fixing shell 2 is provided with a lower groove 201, and the bottom of the clamp 32 is provided with an upper groove 321 opposite to the lower groove 201. The lower groove 201 and the upper groove 321 can improve the stability of the syringe after clamping.

[0064] Specifically, in this embodiment, the clamp 31 and the clamp 32 are detachably connected. In this embodiment, the detachable connection between the clamp 31 and the clamp 32 is a snap-fit ​​connection. The clamp 32 is detachable, which facilitates the disassembly and installation of the clamp 32 and adapts it to different models of syringes.

[0065] Specifically, in this embodiment, the size of the upper groove 321 matches the size of the syringe and is less than or equal to the size of the lower groove 201.

[0066] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A heparin pump capable of detecting syringe model, comprising a syringe mounting housing (2) mounted on a pump body mounting plate (1), and a clamping assembly (3) for cooperating with the syringe mounting housing (2) to clamp the syringe, characterized in that, It also includes a mounting structure (4) installed on the pump body mounting plate (1) and used to install the detection components; It also includes a detection assembly whose detection ends are pressed against the clamping assembly (3), and the detection assembly includes a first detection unit (51) and a second detection unit (52) both mounted on the mounting structure (4); When the syringe is installed, the end of the clamping assembly (3) will approach the syringe retaining housing (2) along its axial direction; Without the syringe installed, the distance between the detection end of the first detection unit (51) and the end of the clamping assembly (3) along the axial direction of the clamping assembly (3) is less than the outer diameter of the first type of syringe; The distance between the detection end of the second detection unit (52) and the end of the clamping assembly (3) along the axial direction is greater than the outer diameter of the first type of syringe and less than the outer diameter of the second type of syringe.

2. The heparin pump capable of detecting syringe model according to claim 1, characterized in that, It also includes a third detection unit (53) disposed on the mounting structure (4); Without the syringe installed, the distance between the detection end of the third detection unit (53) and the end of the clamping assembly (3) along the axial direction is greater than the outer diameter of the second-type syringe and less than the outer diameter of the third-type syringe.

3. A heparin pump capable of detecting syringe model according to claim 1 or 2, characterized in that, The first detection unit (51), the second detection unit (52), and the third detection unit (53) are all micro switches, and the detection ends of the micro switches are pressed against the clamping assembly (3).

4. A heparin pump capable of detecting syringe model according to claim 2, characterized in that, The mounting structure (4) is provided with a first mounting hole (41), a second mounting hole (42), and a third mounting hole (43); The first detection unit (51), the second detection unit (52), and the third detection unit (53) are detachably mounted on the mounting structure (4) through the first mounting hole (41), the second mounting hole (42), and the third mounting hole (43), respectively.

5. A heparin pump capable of detecting syringe model according to claim 4, characterized in that, The first mounting hole (41), the second mounting hole (42), and the third mounting hole (43) are all strip-shaped holes, and the length direction of the strip-shaped holes is parallel to the axial direction of the clamping assembly (3).

6. A heparin pump capable of detecting syringe model according to claim 1, characterized in that, The mounting structure (4) is made using an integrated process, and the mounting structure (4) is detachably and fixedly connected to the pump body mounting plate (1).

7. A heparin pump capable of detecting syringe model according to claim 1, characterized in that, The clamping assembly (3) includes a clamping seat (31), a pull rod (33), and a spring cylinder (35) that are fixedly connected; The pull rod (33) passes through the syringe housing (2) and is slidably connected to it; It also includes a spring body (34) fitted onto the pull rod (33), with one end of the spring body (34) pressing against the spring cylinder (35) and the other end pressing against the syringe mounting base; The detection ends of the detection components are all pressed against the spring cylinder (35).

8. A heparin pump capable of detecting syringe model according to claim 7, characterized in that, The clamping assembly (3) also includes a chuck (32) disposed within the clamping base (31); The top of the syringe fixing shell (2) is provided with a lower groove (201), and the bottom of the clamp (32) is provided with an upper groove (321) opposite to the lower groove (201).

9. A heparin pump capable of detecting syringe model according to claim 8, characterized in that, The clamp (31) and the clamp (32) are detachably connected.

10. A heparin pump capable of detecting syringe model according to claim 8, characterized in that, The size of the upper groove (321) matches the size of the syringe and is less than or equal to the size of the lower groove (201).

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