Infusion pump device

Abstract

The utility model belongs to the technical field of medical instruments, and relates to an infusion pump device which comprises a shell, an infusion pump assembly and a detection assembly. The infusion pump assembly comprises a mounting seat, an infusion pump and a pump door; the mounting seat is arranged on the shell; the infusion pump is arranged on the mounting seat; the pump door is movably arranged on the mounting seat; the detection assembly is arranged on the shell and comprises a reversing part and a detection part, the reversing part and the pump door are correspondingly arranged, the pump door drives the reversing part to move when being opened and closed, the moving direction of the pump door is different from that of the reversing part when being opened and closed, and the detection part detects displacement of the reversing part. According to the technical scheme, the sliding stroke of the pump door can be converted into movement of the reversing piece, the detection stroke is increased, and the detection accuracy of the detection piece on opening and closing of the pump door is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, more particularly, to an infusion pump device. BACKGROUND

[0002] In the field of infusion injection medical devices, it is crucial to achieve contactless control of liquid flow in the pipeline to achieve precise infusion. At present, the market mainly relies on infusion pumps to achieve precise infusion of medicaments in the infusion tube. Rotor pumps are usually used in infusion pumps due to their stable flow, low mechanical wear and wide applicability.

[0003] During infusion by an infusion pump, switch door detection has become a necessary means to prevent infusion risks, which can greatly reduce the occurrence of medical accidents. However, due to the compact structure of the rotor pump, the opening and closing stroke of the pump door is short, making it difficult to detect the opening and closing of the pump door. In addition, in order to meet the requirement of wide applicability, the pump head is usually detachable, and the structure is poorly related. Therefore, rotor pumps almost do not have switch door detection function. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the embodiments of the present application is that the existing rotor pump does not have switch door detection function.

[0005] In order to solve the above technical problem, the embodiments of the present application provide an infusion pump device, which adopts the technical scheme as follows:

[0006] An infusion pump device, comprising a housing, an infusion pump assembly and a detection assembly;

[0007] The infusion pump assembly comprises a mounting seat, an infusion pump and a pump door. The mounting seat is installed on the housing. The infusion pump is installed on the mounting seat. The pump door is movably installed on the mounting seat.

[0008] The detection assembly is installed in the housing. The detection assembly comprises a reversing piece and a detection piece. The reversing piece is arranged corresponding to the pump door. The pump door drives the reversing piece to move when the pump door is opened and closed. The moving direction of the pump door when the pump door is opened and closed is different from the moving direction of the reversing piece. The detection piece detects the displacement of the reversing piece.

[0009] Further, the detection assembly further comprises a mounting bracket. The mounting bracket is installed on the housing. The reversing piece is movably installed on the mounting bracket. The reversing piece is arranged corresponding to the detection end of the detection piece.

[0010] Further, the reversing piece is rotatably installed on the mounting bracket through a rotating shaft. The pump door drives the reversing piece to rotate around the rotating shaft when the pump door is opened and closed, so as to approach or move away from the detection end of the detection piece; or,

[0011] The reversing piece is slidingly arranged on the mounting bracket, and the pump door drives the reversing piece to slide along the mounting bracket to approach or move away from the detection end of the detection piece when the pump door is opened or closed.

[0012] Further, a guide slope is formed on the side of the reversing piece close to the pump door, and the guide slope is gradually inclined to the side of the pump door along the moving direction of the opening of the pump door.

[0013] Further, a baffle is arranged on the reversing piece, and the baffle is used to limit the moving distance of the reversing piece relative to the mounting bracket.

[0014] Further, the detection assembly further comprises a sensing piece, the sensing piece is located between the reversing piece and the detection piece, and the end of the sensing piece is closely attached to the reversing piece, and the detection piece detects the displacement of the sensing piece to detect the displacement of the reversing piece.

[0015] Further, a through hole is arranged on the shell, the sensing piece is movably arranged in the through hole, the sensing piece is made of elastic material, and the sensing piece is in interference fit with the through hole.

[0016] Further, the detection assembly further comprises a reset piece, the reset piece is used to push the sensing piece to reset when the pump door is closed, so as to push the reversing piece to reset.

[0017] Further, a guide groove is arranged on the mounting seat, a guide block is arranged on the side of the mounting seat close to the pump door, the pump door is slidingly arranged on the mounting seat through the cooperation of the guide block and the guide groove, and one end of the reversing piece is at least partially inserted into the guide groove and abuts against the guide block.

[0018] Further, the infusion pump device further comprises a driving piece and a control module.

[0019] The driving piece is arranged in the shell, and the driving end of the driving piece passes through the shell and the mounting seat in sequence and is connected with the infusion pump.

[0020] The control module is arranged in the shell, the control module is connected with the detection assembly and the driving piece, and the control module is used to receive the feedback signal transmitted by the detection assembly to control the start and stop of the driving piece.

[0021] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0022] The infusion pump device provided in the present application realizes the conversion of the touch stroke of the opening and closing of the pump door into the moving distance of the reversing piece, thereby realizing the amplification of the detection stroke of the detection assembly, and further realizing the detection accuracy of the detection piece on the opening and closing of the pump door. Attached Figure Description

[0023] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the infusion pump device according to an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the structure of an infusion pump device according to an embodiment of this application (without infusion pump assembly);

[0026] Figure 3 This is a cross-sectional schematic diagram of an infusion pump device according to an embodiment of this application (without infusion pump assembly);

[0027] Figure 4 This is a schematic diagram of the assembly structure of the mounting bracket and the commutator according to an embodiment of this application;

[0028] Figure 5 This is a schematic diagram of the cooperation between the commutator and the guide block in an embodiment of this application.

[0029] Figure label:

[0030] 1. Outer shell; 11. Fixing plate; 12. Fixing housing; 13. Rear cover; 2. Infusion pump assembly; 21. Mounting base; 211. Guide groove; 22. Pump door; 221. Guide block; 3. Detection assembly; 31. Detection component; 32. Reversing component; 321. Rotating shaft; 322. Guide slope; 323. Baffle; 33. Mounting bracket; 331. Clamping groove; 332. Arc groove; 34. Sensing component; 35. Reset component; 4. Drive component; 5. Control module. Detailed Implementation

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0032] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in

[0033] Referring to FIGS. 1-3, embodiments of the application provide an infusion pump device, which includes a housing 1, an infusion pump assembly 2, and a detection assembly 3. The infusion pump assembly 2 is mounted on the housing 1, and the detection assembly 3 is mounted in the housing 1. The detection assembly 3 is configured to detect opening and closing of a pump door of the infusion pump assembly 2. Figure 1 Figure 2 In the embodiment, the housing 1 includes a fixed plate 11, a fixed shell 12, and a rear cover 13. The fixed plate 11 is mounted on a side of the fixed shell 12 close to the infusion pump assembly 2. The rear cover 13 is mounted on a side of the fixed shell 12 away from the infusion pump assembly 2. A receiving cavity is formed between the fixed plate 11, the fixed shell 12, and the rear cover 13. The infusion pump assembly 2 is mounted on the fixed plate 11, and the detection assembly 3 is mounted on the fixed shell 12.

[0034] In some embodiments, the infusion pump assembly 2 includes a mounting seat 21, an infusion pump, and a pump door 22. The mounting seat 21 is mounted on the housing 1. The infusion pump is mounted on the mounting seat 21. The pump door 22 is movably mounted on the mounting seat 21.

[0035] In some embodiments, the detection assembly 3 is mounted in the housing 1. The detection assembly 3 includes a reversing piece 32 and a detection piece 31. The reversing piece 32 is arranged in correspondence with the pump door 22. The pump door 22 drives the reversing piece 32 to move when the pump door 22 is opened or closed. The moving direction of the pump door 22 is different from the moving direction of the reversing piece 32. The detection piece 31 detects displacement of the reversing piece 32.

[0036] In some embodiments, the detection assembly 3 is mounted in the housing 1. The detection assembly 3 includes a reversing piece 32 and a detection piece 31. The reversing piece 32 is arranged in correspondence with the pump door 22. The pump door 22 drives the reversing piece 32 to move when the pump door 22 is opened or closed. The moving direction of the pump door 22 is different from the moving direction of the reversing piece 32. The detection piece 31 detects displacement of the reversing piece 32.

[0037] ​In the embodiment, the reversing piece 32 is movably arranged at the detection end of the detection piece 31, and the reversing piece 32 is used to convert the moving direction of the pump door 22 relative to the mounting seat 21 into the moving direction of the pump door 22 relative to the detection piece 31; in the embodiment, the detection piece 31 is arranged in the housing 1 and located in the accommodating cavity, and the reversing piece 32 is movably arranged on the housing 1, and the detection piece 31 detects the displacement of the reversing piece 32. In the embodiment, when the pump door 22 is opened or closed, the pump door 22 moves relative to the mounting seat 21 and pushes the reversing piece 32 to move towards the detection piece 31, and the detection piece 31 detects the opening and closing of the pump door 22 by detecting the movement of the reversing piece 32.

[0038] The embodiment of the application provides the infusion pump device, which converts the touch stroke of the pump door 22 into the moving distance of the reversing piece 32 by arranging the reversing piece 32 in the detection assembly 3, so that the detection stroke of the detection assembly 3 is amplified, and the detection accuracy of the detection piece 31 to the opening and closing of the pump door 22 is improved.

[0039] Referring to FIG. 1, Figure 5 In the embodiment, the mounting seat 21 is detachably arranged on the housing 1, the mounting seat 21 is provided with a guide groove 211, the pump door 22 is provided with a guide block 221 on the side of the pump door 22 facing the mounting seat 21, and the pump door 22 is slidably arranged on the mounting seat 21 by cooperation of the guide block 221 and the guide groove 211; the pump door 22 and the mounting seat 21 form a mounting cavity, the infusion pump is arranged on the mounting seat 21 and located in the mounting cavity; during the opening and closing of the pump door 22, the guide block 221 moves up and down along the guide groove 211; one end of the reversing piece 32 is at least partially inserted into the guide groove 211 and abuts against the guide block 221.

[0040] Referring to FIG. 1, Figure 3 In some embodiments, the infusion pump further comprises a driving piece 4 and a control module 5.

[0041] The driving piece 4 is arranged in the housing 1, and the driving end of the driving piece 4 is connected with the infusion pump in sequence after penetrating through the housing 1 and the mounting seat 21; in the embodiment, the driving piece 4 is a servo motor.

[0042] The control module 5 is arranged in the shell 1, the control module 5 is connected with the detection assembly 3 and the driving part 4, the control module 5 is used for receiving the feedback signal transmitted by the detection assembly 3 to control the start and stop of the driving part 4, in the embodiment, the control module 5 is connected with the detection part 31, the detection part 31 transmits the feedback signal to the control module 5, the control module 5 generates the switching signal based on the feedback signal and transmits to the driving part 4, the start and stop of the driving part 4 are realized, thereby the start and stop of the infusion pump are controlled.

[0043] Please refer to Figures 2 to 4 As shown in the figure, in some embodiments, the detection assembly 3 further comprises a mounting bracket 33, the mounting bracket 33 is arranged on the shell 1, the reversing part 32 is movably arranged on the mounting bracket, and the reversing part 32 is arranged corresponding to the detection end of the detection part 31.

[0044] In the embodiment, the mounting bracket 33 is arranged on the fixed plate 11, and the mounting bracket 33 is provided with a mounting hole, the mounting hole is used for positioning and mounting the mounting seat 21 of the infusion pump assembly 2, avoiding that the mounting hole arranged on the fixed plate 11 causes damage to the sealing of the shell 1 as a whole.

[0045] Specifically, the reversing part 32 movably arranged on the mounting bracket 33 can be arranged as rotatingly arranged on the mounting bracket 33, or can be arranged as slidingly arranged on the mounting bracket 33, as long as it can realize the conversion of the vertical sliding stroke of the pump door 22 opening and closing into the horizontal moving stroke of the reversing part 32 and can play a role in amplifying the stroke distance.

[0046] In the embodiment, the reversing part 32 is rotatingly arranged on the mounting bracket 33, which is realized by the following structure:

[0047] Please refer to Figure 4 As shown in the figure, in some embodiments, the reversing part 32 is rotatingly arranged on the mounting bracket 33 through the rotating shaft 321, the pump door 22 drives the reversing part 32 to rotate around the rotating shaft 321 when opening and closing, so as to approach or move away from the detection end of the detection part 31.

[0048] In the embodiment, the arc-shaped groove 332 is formed on the mounting bracket 33, the opposite side of the reversing part 32 is formed with the rotating shaft 321, the reversing part 32 is rotatingly arranged on the mounting bracket 33 through the cooperation of the rotating shaft 321 and the arc-shaped groove 332, and the reversing part 32 is used for converting the sliding of the pump door 22 relative to the mounting seat 21 into the rotation around the rotating shaft 321 when opening and closing, so as to approach or move away from the detection part 31.

[0049] Further, the mounting bracket 33 is formed with a clamping groove 331 after at least one bending, and an arc-shaped groove 332 is arranged at the top of the clamping groove 331.

[0050] Opposite sides of the top of the reversing piece 32 are provided with rotating shafts 321, the reversing piece 32 is arranged in the clamping groove 331, and the rotating shafts 321 are arranged in the corresponding arc-shaped grooves 332, and the reversing piece 32 rotates in the clamping groove 331 around the rotating shafts 321.

[0051] The embodiment of the present application converts the vertical sliding of the pump door 22 when the pump door 22 is opened and closed into the rotation of the reversing piece 32 around the rotating shafts 321, and amplifies the moving stroke, so as to improve the detection accuracy of the detection assembly 3; meanwhile, the clamping groove 331 is arranged to limit the shaking of the reversing piece 32 in the axial direction of the rotating shafts 321, so as to improve the alignment accuracy of the reversing piece 32 and the guide block 221, and further improve the detection accuracy of the detection assembly 3.

[0052] In other embodiments, the reversing piece 32 can also be slidingly arranged on the mounting bracket 33, and the specific implementation is as follows:

[0053] In some embodiments, the reversing piece 32 is slidingly arranged on the mounting bracket 33, and the pump door 22 drives the reversing piece 32 to slide along the mounting bracket 33 when the pump door 22 is opened and closed, so as to approach or move away from the detection end of the detection piece 31.

[0054] In the embodiment, a sliding groove is formed on the mounting bracket 33, and a sliding block is formed on the opposite side of the reversing piece 32, the reversing piece 32 is slidingly arranged on the mounting bracket 33 through the cooperation of the sliding block and the sliding groove, and the reversing piece 32 is used to convert the sliding of the pump door 22 relative to the mounting seat 21 into the sliding along the sliding groove when the pump door 22 is opened and closed, so as to approach or move away from the detection piece 31.

[0055] In some embodiments, a guide inclined surface 322 is formed on the side of the reversing piece 32 close to the pump door 22, the guide inclined surface 322 is arranged to gradually incline to the side of the pump door 22 along the moving direction of the opening of the pump door 22, and in the embodiment, the bottom of the guide inclined surface 322 is at least partially arranged in the guide groove 211, as shown in (a). Figure 5

[0056] When the pump door 22 is opened and closed, the guide block 221 moves downward along the guide groove 211, and pushes the reversing piece 32 to move in the direction close to the detection piece 31 along the guide inclined surface 322, as shown in (a). Figure 5 ​(b) shown, thereby achieving the conversion of the vertical sliding stroke of the guide block 221 into the horizontal moving stroke of the reversing piece 32, playing the role of expanding the detection stroke; at the same time, due to the design that the bottom of the guide slope 322 is at least partially placed into the guide groove 211, the close fit of the guide block 221 and the guide slope 322 is ensured, so that the up and down movement of the guide block 221 is stably converted into the movement of the reversing piece 32, improving the triggering accuracy of the detection component 31.

[0057] Further, the width of the guide block 221 is greater than the width of the guide slope 322, so as to achieve that the surface of the guide block 221 is always in contact with the guide slope 322, thereby improving the detection stability of the detection assembly 3.

[0058] Please refer to Figure 3 As shown in some embodiments, the reversing piece 32 is further provided with a baffle 323, and the baffle 323 is used to limit the moving distance of the reversing piece 32 relative to the mounting bracket 33.

[0059] In the embodiment, the side wall of the clamping groove 331 close to the side of the pump door 22 can limit the movement of the reversing piece 32 relative to the mounting bracket 33 in the direction of the pump door 22.

[0060] The embodiment of the present application can also limit the maximum moving distance of the reversing piece 32 through the side wall of the clamping groove 331 and the baffle 323.

[0061] In some embodiments, the detection assembly 3 further comprises a sensing piece 34, the sensing piece 34 is located between the reversing piece 32 and the detection component 31, and the end of the sensing piece 34 is closely fitted with the reversing piece 32, and the detection component 31 detects the displacement of the sensing piece 34 to detect the displacement of the reversing piece 32.

[0062] In some embodiments, the housing 1 is provided with a through hole, the sensing piece 34 is movably arranged in the through hole, the sensing piece 34 is made of elastic material, and the sensing piece 34 is in interference fit with the through hole; in the embodiment, the elastic material is selected from rubber or silicone.

[0063] The sensing piece 34 of the embodiment of the present application can seal the through hole of the housing 1 by using elastic material, thereby improving the sealing performance of the containing cavity.

[0064] The embodiment of the present application further stably converts the rotation of the reversing piece 32 into the horizontal displacement of the sensing piece 34 relative to the housing 1 by movably arranging the sensing piece 34 in the through hole, thereby improving the triggering accuracy of the detection component 31.

[0065] Please refer to Figure 3As shown, in some embodiments, the detection assembly 3 further comprises a reset member 35, which is used to push the sensing member 34 to reset when the pump door 22 is closed, so as to push the reversing member 32 to reset, i.e. to move away from the detection member 31.

[0066] The reset member 35 is arranged between the sensing member 34 and the detection end of the detection member 31, and the reset member 35 is a straight spring.

[0067] In the present embodiment, when the pump door 22 is closed, the reset member 35 pushes the sensing member 34 to reset, so as to make the reversing member 32 reset into the guide groove 211; meanwhile, when the pump door 22 is opened, the reset member 35 provides a certain pushing force by using the elastic reset action, so as to make the guide inclined surface 322 of the reversing member 32 always tightly contact with the contact surface of the guide block 221, so that the up and down movement of the guide block 221 is stably converted into the movement of the reversing member 32, and the triggering precision of the detection member 31 is improved.

[0068] By the arrangement of the reset member 35, the reset member 35 is used to push the sensing member 34 to move towards the infusion pump assembly 2 by using the elastic reset action, so as to make the guide inclined surface 322 of the reversing member 32 tightly contact with the surface of the guide block 221, so as to realize the stable conversion of the opening stroke of the pump door 22, and further to improve the detection accuracy of the detection assembly 3.

[0069] Obviously, the above-described embodiments are only some embodiments of the present application, but not all the embodiments. The preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and the provided embodiments are only for making the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some technical features. Any equivalent structure made by referring to the content of the present application specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present application.

Claims

1. An infusion pump device, characterized in that, Includes the housing, infusion pump assembly, and detection assembly; The infusion pump assembly includes a mounting base, an infusion pump, and a pump door; the mounting base is mounted on the housing; the infusion pump is mounted on the mounting base; and the pump door is movably mounted on the mounting base. The detection component is installed on the housing. The detection component includes a reversing component and a detection component. The reversing component is correspondingly arranged with the pump door. When the pump door opens and closes, it drives the reversing component to move. The direction of movement of the pump door when it opens and closes is different from the direction of movement of the reversing component. The detection component detects the displacement of the reversing component.

2. The infusion pump device according to claim 1, characterized in that, The detection component further includes a mounting bracket, which is mounted on the housing. The commutator is movably mounted on the mounting bracket, and the commutator is correspondingly configured with the detection end of the detection component.

3. The infusion pump device according to claim 2, characterized in that, The reversing component is rotatably mounted on the mounting bracket via a rotating shaft. When the pump door opens or closes, it drives the reversing component to rotate around the rotating shaft, moving it closer to or further away from the detection end of the detection element; or, The reversing component is slidably mounted on the mounting bracket. When the pump door opens and closes, it drives the reversing component to slide along the mounting bracket to move closer to or further away from the detection end of the detection component.

4. The infusion pump device according to claim 3, characterized in that, The reversing component forms a guide slope on the side near the pump door, and the guide slope is gradually inclined towards the side of the pump door along the moving direction of the pump door opening.

5. The infusion pump device according to claim 3, characterized in that, The commutator is also provided with a baffle, which is used to limit the movement distance of the commutator relative to the mounting bracket.

6. The infusion pump device according to claim 2, characterized in that, The detection component further includes a sensor located between the commutator and the detection component, with the end of the sensor in close contact with the commutator. The detection component detects the displacement of the commutator by detecting the displacement of the sensor.

7. The infusion pump device according to claim 6, characterized in that, The outer casing has a through hole, and the sensor is movably installed in the through hole. The sensor is made of elastic material, and the sensor is interference-fitted with the through hole.

8. The infusion pump device according to claim 6, characterized in that, The detection assembly also includes a reset element, which is used to push the sensor to reset when the pump door is closed, thereby pushing the commutator to reset.

9. The infusion pump device according to claim 1, characterized in that, The mounting base is provided with a guide groove, and the pump door is provided with a guide block on the side facing the mounting base. The pump door is slidably mounted on the mounting base through the cooperation of the guide block and the guide groove. At least one end of the reversing member is inserted into the guide groove and abuts against the guide block.

10. The infusion pump device according to claim 1, characterized in that, The infusion pump device also includes a drive component and a control module; The drive component is installed inside the housing, and the drive end of the drive component passes through the housing and the mounting base in sequence before being connected to the infusion pump; The control module is installed inside the housing and is connected to the detection component and the drive component. The control module is used to receive feedback signals transmitted by the detection component, thereby controlling the start and stop of the drive component.

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