Locking mechanism for infusion pump

Abstract

The utility model relates to infusion pump technical field proposes a kind of locking mechanism for infusion pump, including switch button, it is set in the outside of pump door;Drive assembly is set on pump body, and drive assembly includes slide, slide is set on pump body along linear reciprocating sliding, and groove is set on slide;Door hook is set on pump door, and door hook realizes into or disengages groove by the movement of slide;Straight slide potentiometer is connected on pump body and sliding arm is connected on slide;Magnet is set in the inside of pump door;Hall switch is set on pump body and is used for inducting magnet;Controller is set on pump body and is electrically connected hall switch, straight slide potentiometer and drive assembly. Through the above technical scheme, the problem that the existing infusion pump cannot automatically feedback that pump door is in open state or closed state is solved.

Description

Technical Field

[0001] This utility model relates to the field of infusion pump technology, specifically to a locking mechanism for an infusion pump. Background Technology

[0002] Infusion pumps are primarily used for the precise and quantitative control of fluid administration into patients and are widely used in the medical field. During operation, the pump valve is typically either open or closed. The pump can only function properly and provide service to the patient when the valve is closed, and these positions are usually only manually monitored in real-time. However, when medical staff are busy, they may not have time to monitor the pump valve status, leading to the pump not operating normally.

[0003] Therefore, there is an urgent need for a fully automated system to monitor and provide feedback on the pump gate status. Utility Model Content

[0004] This invention proposes a locking mechanism for an infusion pump, which solves the problem that existing infusion pumps cannot automatically indicate whether the pump door is open or closed.

[0005] The technical solution of this utility model is as follows: A locking mechanism for an infusion pump, the infusion pump including a pump door and a pump body, one side of the pump door being hinged to the pump body, comprising:

[0006] A switch button is located on the outside of the pump door;

[0007] A drive assembly is disposed on the pump body. The drive assembly includes a slide plate, which is disposed on the pump body in a straight line and has grooves formed on the slide plate.

[0008] A door hook is provided on the pump door, and the door hook enters or leaves the groove by means of the movement of the sliding plate;

[0009] A sliding potentiometer is connected to the pump body and its sliding arm is connected to the slide plate;

[0010] A magnet is placed on the inside of the pump door;

[0011] A Hall effect switch is installed on the pump body and used to sense the magnet;

[0012] The controller is mounted on the pump body and electrically connected to the Hall switch, the sliding potentiometer, and the drive assembly.

[0013] As a further technical solution, the door hook and the groove are multiple and are arranged in a one-to-one correspondence.

[0014] As a further technical solution, multiple door hooks are arranged at equal intervals on the pump door.

[0015] As a further technical solution, a door latch is also included, which is connected to the pump body and has a first guide groove, and the slide plate is slidably disposed in the first guide groove.

[0016] As a further technical solution, a guide plate is also included, which is disposed on the pump body and has a second guide groove, and the slide plate is slidably disposed in the second guide groove.

[0017] As a further technical solution, the first guide groove and the second guide groove are located on opposite sides of the slide plate.

[0018] As a further technical solution, the driving component also includes:

[0019] A driver is mounted on the pump body and has a drive end;

[0020] A drive gear is disposed on the drive end;

[0021] A drive rack is connected to the slide plate, and the drive rack meshes with the drive gear.

[0022] The driver drives the slide plate to reciprocate linearly via the drive gear and the drive rack.

[0023] As a further technical solution, the drive assembly also includes a drive screw, which is rotatably connected to the slide plate. The drive rack has a threaded hole, and the drive screw passes through the threaded hole.

[0024] As a further technical solution, the end of the drive screw has a rotating groove.

[0025] As a further technical solution, the slide plate is provided with a traction groove, and the sliding arm of the straight sliding potentiometer passes through the traction groove.

[0026] The working principle and beneficial effects of this utility model are as follows: A locking mechanism for an infusion pump includes a switch button, a drive assembly, a door hook, a linear potentiometer, a magnet, a Hall switch, and a controller. The switch button is located on the outside of the pump door and is used to open the door. The drive assembly includes a sliding plate that slides on the pump body. The sliding plate has grooves, and a door hook is located on the inside of the pump door. When the pump door is closed, the door hook inserts into the groove on the sliding plate. When the groove separates from the door hook as the sliding plate moves, the pump door can be opened. The magnet is located on the inside of the pump door, and the Hall switch is located on the pump body. The Hall switch can sense the magnet when the pump door is closed. The sliding arm of the linear potentiometer is connected to the sliding plate and can reciprocate linearly under the traction of the sliding plate. When the pump door is manually closed by the operator, it is accurately locked onto the pump body. The Hall switch senses the magnet and transmits a signal to the controller, which then transmits a signal to the drive assembly. The sliding plate inside the drive assembly moves away, causing the door hook to engage in the groove. During this process, the sliding potentiometer moves synchronously with the sliding plate. When the sliding arm of the sliding potentiometer moves to the left to the first extreme position, it provides feedback to the controller that the pump door is closed. When the operator presses the switch button, a signal is transmitted to the controller, which then transmits a signal to the drive assembly. The sliding plate then moves in the opposite direction, causing the door hook to disengage from the groove, and the pump door can then be opened. During this process, the sliding arm of the sliding potentiometer moves synchronously with the sliding plate. When the sliding arm of the sliding potentiometer moves to the second extreme position, it provides feedback to the controller that the pump door is open. In this way, medical staff can easily determine the status of the infusion pump door, and the open or closed status of the pump door will be promptly fed back when connected to other systems. Attached Figure Description

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 A schematic diagram of the locking mechanism for the infusion pump provided by this utility model;

[0029] Figure 2 for Figure 1 Front view;

[0030] Figure 3 for Figure 1 A structural diagram from the first angle;

[0031] Figure 4 for Figure 1 A structural diagram from the second angle;

[0032] Figure 5 for Figure 1 A schematic diagram showing the pump door structure with some parts hidden;

[0033] Figure 6 for Figure 1 A structural diagram concealing the pump door, pump body, and guide plate;

[0034] Figure 7 for Figure 6 A structural diagram from another angle;

[0035] Figure 8 for Figure 7 A magnified view of a portion of point A in the middle.

[0036] In the diagram: 1. Pump door; 2. Pump body; 3. Switch button; 4. Slide plate; 5. Door hook; 6. Sliding potentiometer; 7. Magnet; 8. Hall effect switch; 9. Door latch; 10. Guide plate; 11. Driver; 12. Drive gear; 13. Drive rack; 14. Drive screw; 15. Traction groove. Detailed Implementation

[0037] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0038] like Figures 1-8 As shown, this embodiment proposes a locking mechanism for an infusion pump. The infusion pump includes a pump door 1 and a pump body 2. One side of the pump door 1 is hinged to the pump body 2, and includes:

[0039] Switch button 3 is located on the outside of pump door 1;

[0040] A drive assembly is mounted on the pump body 2. The drive assembly includes a slide plate 4, which slides back and forth on the pump body 2 in a straight line. Grooves are provided on the slide plate 4.

[0041] Door hook 5 is installed on pump door 1. Door hook 5 enters or leaves the groove by means of the movement of sliding plate 4.

[0042] The sliding potentiometer 6 is connected to the slide plate 4;

[0043] Magnet 7 is installed inside the pump door 1;

[0044] Hall effect switch 8 is installed on pump body 2 and used to sense magnet 7;

[0045] The controller is mounted on the pump body 2 and electrically connected to the Hall switch 8, the sliding potentiometer 6, and the drive assembly.

[0046] In this embodiment, a locking mechanism for an infusion pump includes a switch button 3, a drive assembly, a door hook 5, a linear potentiometer 6, a magnet 7, a Hall switch 8, and a controller. The switch button 3 is located on the outside of the pump door 1 and is used to open the door. The drive assembly includes a slide plate 4, which is slidably mounted on the pump body 2. The slide plate 4 has grooves, and a door hook 5 is located on the inside of the pump door 1. When the pump door 1 is closed, the door hook 5 enters the groove on the slide plate 4. When the groove separates from the door hook 5 as the slide plate 4 moves, the pump door 1 can be opened. The magnet 7 is located on the inside of the pump door 1, and the Hall switch 8 is located on the pump body 2. The Hall switch 8 can sense the magnet 7 when the pump door 1 is closed. The sliding arm of the linear potentiometer 6 is connected to the slide plate 4 and can reciprocate linearly under the traction of the slide plate 4. When the pump door 1 is manually closed by the operator, it is accurately locked onto the pump body 2. The Hall switch 8 senses the magnet 7 and transmits a signal to the controller, which then transmits a signal to the drive assembly. The slide plate 4 inside the drive assembly moves away, causing the door hook 5 to enter the groove. During this process, the sliding potentiometer 6 moves synchronously with the slide plate 4. When the sliding arm of the sliding potentiometer 6 moves to the first extreme position to the left, it can provide feedback to the controller that the pump door 1 is closed. When the operator presses the switch button 3, a signal is transmitted to the controller, which then transmits a signal to the drive assembly. The slide plate 4 then moves in the opposite direction, causing the door hook 5 to disengage from the groove, and the pump door 1 can then be opened. During this process, the sliding arm of the sliding potentiometer 6 moves synchronously with the slide plate 4. When the sliding arm of the sliding potentiometer 6 moves to the second extreme position, it can provide feedback to the controller that the pump door 1 is open. In this way, medical staff can easily determine the status of the infusion pump door 1, and the open or closed status of the pump door 1 can be promptly fed back when connected to other systems.

[0047] Furthermore, such as Figures 1-8 As shown in the figure, this embodiment proposes that there are multiple door hooks 5 and grooves, and they are set in a one-to-one correspondence.

[0048] In this embodiment, in order to improve the stability of the connection between the pump door 1 and the pump body 2, there are multiple door hooks 5 on the pump door 1 and multiple grooves on the slide plate 4. The number of door hooks 5 is the same as the number of grooves. In addition, the door hooks 5 and the grooves are arranged in a one-to-one correspondence.

[0049] Furthermore, such as Figures 1-8 As shown in the figure, this embodiment proposes that multiple door hooks 5 be arranged at equal intervals on the pump door 1.

[0050] In this embodiment, in order to distribute the force on the pump door 1 evenly, multiple door hooks 5 are arranged at the same distance intervals. Similarly, the grooves on the slide plate 4 are also arranged at the same distance intervals.

[0051] Furthermore, such as Figures 1-8 As shown, this embodiment also includes a door latch 9, which is connected to the pump body 2 and has a first guide groove, and the slide plate 4 is slidably disposed in the first guide groove.

[0052] In this embodiment, in order to improve the stability of the slide plate 4 during the sliding process, the locking mechanism for the infusion pump also includes a latch 9. The latch 9 is connected to the pump body 2 and has a first guide groove. The first guide groove is located below the slide plate 4, which can not only guide but also support, thus avoiding the need to set up an additional structure on the pump body 2 to support the slide plate 4.

[0053] Furthermore, such as Figures 1-8 As shown, this embodiment also includes a guide plate 10, which is disposed on the pump body 2. A second guide groove is provided on the guide plate 10, and the slide plate 4 is slidably disposed in the second guide groove.

[0054] In this embodiment, to further improve the stability of the sliding plate 4 during the sliding process, the locking mechanism for the infusion pump also includes a guide plate 10. The guide plate 10 is disposed on the pump body 2 and is located above the sliding plate 4. A second guide groove is provided on the guide plate 10, and the sliding plate 4 is in contact with the inner wall of the second guide groove, that is, the sliding plate 4 slides within the second guide groove. The cooperation between the second guide groove and the first guide groove keeps the sliding plate 4 in a vertically limited state, preventing the sliding plate 4 from moving in the vertical direction and improving the stability of the sliding plate 4.

[0055] Furthermore, such as Figures 1-8 As shown, this embodiment proposes that the driving component also includes:

[0056] A driver 11 is mounted on the pump body 2 and has a drive end;

[0057] Drive gear 12 is mounted on the drive end;

[0058] The drive rack 13 is connected to the slide plate 4, and the drive rack 13 is meshed with the drive gear 12;

[0059] The driver 11 drives the slide plate 4 to reciprocate linearly via the drive gear 12 and the drive rack 13.

[0060] In this embodiment, the drive assembly further includes a driver 11, a drive gear 12, and a drive rack 13. The driver 11 is mounted on the pump body 2 and has a drive end. The driver 11 is a common motor. The drive gear 12 is connected to the drive end, and the drive rack 13 is connected to the slide plate 4, with the drive rack 13 meshing with the drive gear 12. When the driver 11 outputs power, the drive gear 12 rotates, thereby moving the drive rack 13. Since the driver 11 and drive gear 12 do not move, the drive rack 13 can move the slide plate 4. When the drive gear 12 continuously changes direction (forward and reverse), the drive rack 13 and the slide plate 4 can reciprocate linearly.

[0061] Furthermore, such as Figures 1-8 As shown, this embodiment proposes that the drive assembly also includes a drive screw 14, which is rotatably connected to the slide plate 4. The drive rack 13 has a threaded hole, and the drive screw 14 passes through the threaded hole.

[0062] In this embodiment, the drive assembly further includes a drive screw 14, which is rotatably mounted on the slide plate 4. A threaded hole is provided on the drive rack 13, and the drive screw 14 passes through this hole. When the driver 11 malfunctions, the pump door 1 can be manually opened or closed by the operator turning the drive screw 14. Due to the malfunction of the driver 11, the drive gear 12 no longer rotates and is locked. Therefore, the drive rack 13 can move, thereby enabling the slide plate 4 to reciprocate linearly.

[0063] Furthermore, such as Figures 1-8 As shown, this embodiment proposes that the end of the drive screw 14 has a rotating groove.

[0064] In this embodiment, to facilitate operation, a rotating groove is provided at the end of the drive screw 14. The operator only needs to find a common tool, such as a flathead screwdriver, and insert the tool into the rotating groove to achieve convenient and quick rotation of the drive screw 14.

[0065] Furthermore, such as Figures 1-8 As shown, this embodiment proposes that the slide plate 4 has a traction groove 15, and the sliding arm of the straight sliding potentiometer 6 passes into the traction groove 15.

[0066] In this embodiment, in order to improve the stability between the slide plate 4 and the straight sliding potentiometer 6, a traction groove 15 is opened on the side of the slide plate 4, the traction groove 15 faces the surface where the straight sliding potentiometer 6 is located, and the sliding arm of the straight sliding potentiometer 6 passes through the traction groove 15.

[0067] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A locking mechanism for an infusion pump, the infusion pump comprising a pump door (1) and a pump body (2), one side of the pump door (1) being hinged to the pump body (2), characterized in that, include: A switch button (3) is located on the outside of the pump door (1); A drive assembly is disposed on the pump body (2). The drive assembly includes a slide plate (4). The slide plate (4) is disposed on the pump body (2) in a straight line and reciprocates. The slide plate (4) has grooves. A door hook (5) is provided on the pump door (1). The door hook (5) enters or leaves the groove by means of the movement of the sliding plate (4). A sliding potentiometer (6) is connected to the pump body (2) and the sliding arm is connected to the slide plate (4); A magnet (7) is disposed on the inside of the pump door (1); Hall switch (8) is provided on the pump body (2) and is used to sense the magnet (7). The controller is mounted on the pump body (2) and electrically connected to the Hall switch (8), the sliding potentiometer (6), and the drive assembly.

2. The locking mechanism for an infusion pump according to claim 1, characterized in that, Both the door hook (5) and the groove are multiple and are set in a one-to-one correspondence.

3. The locking mechanism for an infusion pump according to claim 2, characterized in that, Multiple door hooks (5) are arranged at equal intervals on the pump door (1).

4. The locking mechanism for an infusion pump according to claim 1, characterized in that, It also includes a door latch (9), which is connected to the pump body (2) and has a first guide groove, and the slide plate (4) is slidably disposed in the first guide groove.

5. A locking mechanism for an infusion pump according to claim 4, characterized in that, It also includes a guide plate (10), which is disposed on the pump body (2). A second guide groove is provided on the guide plate (10), and the slide plate (4) is slidably disposed in the second guide groove.

6. A locking mechanism for an infusion pump according to claim 5, characterized in that, The first guide groove and the second guide groove are located on opposite sides of the slide plate (4).

7. A locking mechanism for an infusion pump according to any one of claims 1-6, characterized in that, The driving component also includes: A driver (11) is disposed on the pump body (2) and has a drive end; The drive gear (12) is disposed on the drive end; A drive rack (13) is connected to the slide plate (4), and the drive rack (13) meshes with the drive gear (12); The driver (11) drives the slide plate (4) to reciprocate linearly by means of the drive gear (12) and the drive rack (13).

8. A locking mechanism for an infusion pump according to claim 7, characterized in that, The drive assembly also includes a drive screw (14), which is rotatably connected to the slide plate (4). The drive rack (13) has a threaded hole, and the drive screw (14) passes through the threaded hole.

9. A locking mechanism for an infusion pump according to claim 8, characterized in that, The end of the drive screw (14) has a rotating groove.

10. A locking mechanism for an infusion pump according to any one of claims 1-6, characterized in that, The slide plate (4) has a traction groove (15), and the sliding arm of the straight sliding potentiometer (6) passes into the traction groove (15).

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