An auxiliary device for a hydraulic infusion pump

Abstract

The application discloses an auxiliary device of a hydraulic infusion pump and belongs to the technical field of hydraulic infusion pumps.The auxiliary device comprises a rack, the rack is used for mounting the pump body, an exhaust part is arranged on the rack, the exhaust part penetrates the sealing rubber plug to exhaust the gas in the pump body and the medicine reservoir, and a foolproof part comprises a first foolproof piece arranged on the rack to position the pump body.The auxiliary device can quickly exhaust the gas in the pump body and the medicine reservoir, avoids the risk of gas retention, does not need to use an exhaust valve, effectively avoids the problem of liquid leakage in the interior, forms a foolproof mechanism for the hydraulic infusion pump, makes the pressing sequence of each key unique, and prevents the operator from mistakenly touching the needle insertion key to cause the needle insertion needle to damage the human body.

Description

Technical Field

[0001] This invention belongs to the field of hydraulic infusion pump technology, and particularly relates to an auxiliary device for a hydraulic infusion pump. Background Technology

[0002] A hydraulic infusion pump is an infusion pump that uses a positive displacement micropump to draw hydraulic fluid from a reservoir, pump it into the liquid chamber of a hydraulic reservoir, push the piston of the reservoir forward, and ultimately pump the liquid out of the reservoir's liquid chamber. When the hydraulic infusion pump leaves the factory, the positive displacement micropump is not pre-filled with liquid; therefore, the pump needs to fill both the positive displacement micropump and the liquid chamber of the hydraulic reservoir with hydraulic fluid before startup.

[0003] The existing hydraulic infusion pumps have the following problems in actual use:

[0004] 1. The volumetric micropump is filled with gas. Therefore, it is necessary to start the volumetric micropump to pump the gas out of the liquid chamber of the volumetric micropump and the hydraulic reservoir, and to discharge the gas from the liquid chamber of the hydraulic reservoir. Currently, there is a risk that the gas inside the liquid chamber of the volumetric micropump and the hydraulic reservoir may be trapped and unable to be discharged, as well as the risk that the exhaust valve may fail during long-term use, resulting in leakage of the internal liquid.

[0005] 2. Existing infusion pump products have multiple buttons, such as circuit switch buttons, liquid circuit switch buttons, needle insertion buttons, etc., and there is a certain order to which they should be pressed. During use, users may press these buttons in a different order, which may cause the product to malfunction or accidentally press the needle insertion button and cause injury. Therefore, there is a risk that pressing the buttons in a different order may cause the product to malfunction or accidentally press the needle insertion button and cause injury.

[0006] 3. Existing infusion pump products have irregular shapes and are equipped with patches, making them impossible to place on a flat surface. This requires users to lift the product with one hand and use the other hand to administer medication, which is inconvenient for users.

[0007] 4. In actual use, existing infusion pump products make it difficult for users to determine when the medication addition is complete when adding medication to the product's medicine chamber. This can lead to over-addition of medication, resulting in waste of the medication and the patch becoming wet and losing its adhesive effect. Summary of the Invention

[0008] This invention overcomes the shortcomings of the prior art and provides an auxiliary device for a hydraulic pump to solve the problems existing in the prior art.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an auxiliary device for a hydraulic infusion pump, wherein the auxiliary device is detachably connected to the pump body, the pump body is provided with a drug reservoir and a bottom cover, the bottom cover is located below the drug reservoir, and a sealing plug is provided inside the bottom cover to prevent liquid leakage from the pump body and the drug reservoir; the auxiliary device includes...

[0010] A frame that mounts the pump body;

[0011] An exhaust section is located on the frame and penetrates the sealing plug to discharge the gas inside the pump body and the drug reservoir.

[0012] The error prevention part includes a first error prevention element located on the frame to position the pump body.

[0013] In a preferred embodiment of the present invention, the frame includes a base and a pedestal, and the error-proof part further includes a second error-proof component, wherein both the first error-proof component and the second error-proof component are located on the pedestal.

[0014] In a preferred embodiment of the present invention, a hydraulic-electric switch is provided on the pump body, and a needle insertion button is provided on the drug reservoir. The hydraulic-electric switch is located inside the first anti-foolproof component, and the needle insertion button is located inside the second anti-foolproof component.

[0015] In a preferred embodiment of the present invention, both the first anti-foolproof component and the second anti-foolproof component are snap-fit ​​fasteners.

[0016] In a preferred embodiment of the present invention, a spring positioning bead is provided in the base to elastically position the pump body.

[0017] In a preferred embodiment of the present invention, a magnifying glass is provided on the base, and the magnifying glass corresponds to the position of the drug inlet of the drug reservoir.

[0018] In a preferred embodiment of the present invention, the venting part includes an venting needle, a protective plug, and a return spring. The venting needle is fixedly installed in the base, the protective plug is connected to the base through the return spring, and the venting needle passes through the protective plug.

[0019] In a preferred embodiment of the present invention, the protective plug is located at the air inlet end of the exhaust needle. In the initial state, the protective plug blocks the air inlet end of the exhaust needle. After the protective plug is pressed down, the air inlet end of the exhaust needle extends out of the protective plug to penetrate the sealing plug.

[0020] In a preferred embodiment of the present invention, the exhaust end of the exhaust needle is provided with a waterproof and breathable membrane. When the exhaust needle penetrates the sealing plug, the gas passes through the exhaust needle and the waterproof and breathable membrane in sequence and enters the base for discharge.

[0021] In a preferred embodiment of the present invention, the base is provided with an exhaust channel to discharge gas.

[0022] This invention addresses the shortcomings of the prior art and has the following beneficial effects:

[0023] 1. The auxiliary device of the present invention enables auxiliary venting of the hydraulic infusion pump, which can quickly expel the gas in the pump body and the medicine storage container, avoiding the risk of gas retention. It eliminates the need for an exhaust valve and effectively prevents internal liquid leakage. Furthermore, the auxiliary device of the present invention can be reused, enabling continuous processing of multiple hydraulic infusion pumps of the same specification, resulting in higher efficiency.

[0024] 2. The auxiliary device of the present invention forms a foolproof mechanism for the hydraulic infusion pump. Through the design of the foolproof part, the pressing sequence of each button is unique, and at the same time, it can prevent the operator from accidentally touching the needle insertion button, which could cause the needle tip to damage the human body.

[0025] 3. The auxiliary device of the present invention enables the hydraulic infusion pump to be stably installed on a desktop or other flat surface for drug dosing operations;

[0026] 4. The auxiliary device of the present invention is equipped with a magnifying glass, which enables the operator to more accurately judge the dosing status of the medicine storage device;

[0027] 5. The auxiliary device of the present invention can be quickly removed from the pump body, which can effectively avoid the problem of sealing failure of the waterproof and breathable membrane when it is in contact with liquid for a long time, thereby preventing leakage of the driving fluid in the infusion pump. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0029] Figure 1 This is a schematic diagram of the first integral structure of the auxiliary device and the pump body in a preferred embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the second overall structure of the auxiliary device and the pump body in a preferred embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the auxiliary device according to a preferred embodiment of the present invention;

[0032] Figure 4 for Figure 3 A sectional view;

[0033] Figure 5 for Figure 4 Enlarged view of section A in the middle;

[0034] Figure 6 This is a cross-sectional view of the location of the electrohydraulic switch in a preferred embodiment of the present invention;

[0035] Figure 7 This is a cross-sectional view of the needle insertion button location in a preferred embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the exhaust section in the exhaust state according to a preferred embodiment of the present invention;

[0037] In the diagram: 100, pump body; 101, drug reservoir; 1011, needle insertion button; 1012, drug inlet; 102, bottom cover; 1021, sealing plug; 103, hydraulic switch;

[0038] 10. Frame; 11. Base; 111. Exhaust channel; 12. Base; 20. Exhaust section; 21. Exhaust needle; 22. Protective plug; 23. Return spring; 30. Foolproof part; 31. First foolproof component; 32. Second foolproof component; 40. Spring positioning bead; 50. Magnifying glass; 60. Waterproof and breathable membrane. Detailed Implementation

[0039] The following drawings will disclose several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details are not intended to limit the invention. That is, in some embodiments of the invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0040] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed by this invention.

[0041] Example 1

[0042] This embodiment provides an auxiliary device for a hydraulic infusion pump. This auxiliary device enables the pump to vent gas quickly, avoiding the risk of gas stagnation. It eliminates the need for an exhaust valve and effectively prevents internal liquid leakage. The auxiliary device is also reusable, allowing for continuous processing of multiple hydraulic infusion pumps of the same specifications, resulting in higher efficiency. Furthermore, the auxiliary device forms a foolproof mechanism for the hydraulic infusion pump. The foolproof part 30 ensures that the pressing sequence of each button is unique, preventing accidental activation of the needle insertion button and potential needle tip injury.

[0043] Combination Figures 1 to 8 As shown, the auxiliary device of the hydraulic infusion pump in this embodiment includes a frame 10, an exhaust section 20, and a foolproof part 30. The frame 10 can detachably install the pump body 100. The exhaust section 20 and the foolproof part 30 are both located on the frame 10. The exhaust section 20 can quickly discharge the gas in the pump body 100 and the medicine storage container 101. The foolproof part 30 can install each button switch to make the pressing sequence of each button switch unique, thus forming a foolproof mechanism.

[0044] In this embodiment, the auxiliary device is detachably connected to the pump body 100. The pump body 100 is provided with a medicine reservoir 101 and a bottom cover 102. The bottom cover 102 is located below the medicine reservoir 101. A sealing plug 1021 is provided inside the bottom cover 102 to prevent liquid leakage inside the pump body 100 and the medicine reservoir 101. In the initial state, the sealing plug 1021 is installed inside the bottom cover 102 to seal the gas inside the pump body 100 and the medicine reservoir 101.

[0045] Combination Figure 1 , Figure 6 as well as Figure 7As shown, the frame 10 in this embodiment includes a base 11 and a base 12. The foolproof part 30 includes a first foolproof component 31 and a second foolproof component 32, both of which are located on the base 12. A hydraulic-electric switch 103 is provided on the pump body 100, and a needle insertion button 1011 is provided on the medicine reservoir 101. The hydraulic-electric switch 103 is located inside the first foolproof component 31, and the needle insertion button 1011 is located inside the second foolproof component 32. In actual use of the hydraulic infusion pump, there is a possibility that the button may not be pressed in the predetermined order. To mitigate the risk of product malfunction and accidental needle insertion button 1011 causing injury, a first anti-foolproof component 31 is provided at the position of the electrohydraulic switch 103, and a second anti-foolproof component 32 is provided at the position of the needle insertion button 1011. The auxiliary device can only be removed after the electrohydraulic switch 103 is pressed, and the needle insertion button 1011 can only be pressed after the auxiliary device in this embodiment is removed, thus forming an anti-foolproof mechanism to prevent accidental touch. In this embodiment, both the first anti-foolproof component 31 and the second anti-foolproof component 32 are snap-fit.

[0046] In this embodiment, if the operator removes the auxiliary device of this embodiment before pressing the hydraulic switch 103, the exhaust function will fail, and the gas in the pump body 100 and the liquid chamber of the medicine reservoir 101 will not be able to be discharged, which will lead to a decrease in pumping accuracy. If the operator removes the auxiliary device of this embodiment in advance and presses the needle insertion button 1011, the needle will be exposed and may be contaminated, which may endanger the user's health.

[0047] Furthermore, in this embodiment, a spring positioning bead 40 is provided in the base 12. After the pump body 100 is installed, the spring positioning bead 40 can elastically position the pump body 100 from the side of the pump body 100 to enhance the stability of the pump body 100 on the frame 10.

[0048] Combination Figure 1 , Figure 4 , Figure 5 as well as Figure 8 As shown, in this embodiment, the venting section 20 is located inside the base 11. The venting section 20 is used to penetrate the sealing plug 1021 to leak liquid from the pump body 100 and the medicine reservoir 101. The venting section 20 includes an venting needle 21, a protective plug 22, and a return spring 23. The venting needle 21 is fixedly installed inside the base 11. The protective plug 22 is connected to the base 11 through the return spring 23. The venting needle 21 passes through the protective plug 22. During the installation of the pump body 100, the sealing plug 1021 will press down on the protective plug 22. During the continuous pressing process, the air inlet end of the venting needle 21 will extend outside the protective plug 22, and the venting needle 21 will penetrate the sealing plug 1021, so that the sealing plug 1021 and the venting needle 21 are connected to each other so that the gas can be discharged.

[0049] In this embodiment, the protective plug 22 is located at the air inlet end of the exhaust needle 21. In the initial state, the protective plug 22 blocks the air inlet end of the exhaust needle 21. After the protective plug 22 is pressed down, the air inlet end of the exhaust needle 21 extends out of the protective plug 22 to penetrate the sealing plug 1021. The penetrated sealing plug 1021 will cause gas leakage in the pump body 100 and the medicine reservoir 101, thereby quickly expelling the gas.

[0050] like Figure 8 As shown, the exhaust end of the exhaust needle 21 is provided with a waterproof and breathable membrane 60. When the exhaust needle 21 penetrates the sealing plug 1021, the gas passes through the exhaust needle 21 and the waterproof and breathable membrane 60 in sequence and enters the base 11 for discharge. The base 11 is provided with an exhaust channel 111 to discharge the gas. After the sealing plug 1021 is penetrated, the hydraulic infusion pump enters the exhaust state. The gas located in the pump body 100 and the medicine storage container 101 passes through the sealing plug 1021, the exhaust needle 21, the waterproof and breathable membrane 60 and the exhaust channel 111 in sequence and is discharged into the outside atmosphere. When all the gas is discharged, when the hydraulic infusion pump continues to pump liquid, the liquid comes into contact with the waterproof and breathable membrane 60 and will be sealed inside the waterproof and breathable membrane 60, thereby effectively preventing leakage.

[0051] In the actual use of the auxiliary device of the hydraulic infusion pump in this embodiment, in the initial state, the pump body 100 and the medicine reservoir 101 are installed on the frame 10 of the auxiliary device. At this time, the hydraulic switch 103 on the pump body 100 is connected to the first anti-fooling component 31. The other side of the pump body 100 is elastically positioned under the action of the spring positioning bead 40, so that the pump body 100 is kept on the frame 10 and does not fall off. At this time, the needle insertion button 1011 on the medicine reservoir 101 enters the second anti-fooling component 32, so that the needle insertion button 1011 cannot be accidentally pressed and thus cannot injure the human body. After the protective plug 22 of the exhaust section 20 is squeezed by the lower surface of the pump body 100, it compresses the return spring 23 and presses the protective plug 22 into the base 11. After the protective plug 22 is pressed into the base 11, the exhaust needle 21 will extend out of the protective plug 22. Therefore, the exhaust needle 21 will continue to be released from the sealing plug 1021 until the sealing plug is removed. Once the sealing plug 1021 is penetrated, the venting process begins. Gas inside the pump body 100 and the medicine reservoir 101 passes through the sealing plug 1021, the vent needle 21, the waterproof and breathable membrane 60, and the venting channel 111 before being released into the outside atmosphere. After all the gas is released, when the hydraulic pump continues to pump liquid, the liquid is sealed inside the waterproof and breathable membrane 60, effectively preventing leakage. After the venting is complete, the hydraulic switch 103 is pressed to disengage from the first anti-fooling component 31. The operator then pulls the auxiliary device away from the pump body 100. At this time, the upper surface of the protective plug 22 is not under pressure and returns to its initial state under the action of the return spring 23. Furthermore, the protective plug 22 has protruding ribs around it, which effectively prevents the vent needle 21 from being exposed and thus prevents injury to the human body.

[0052] The auxiliary device in this embodiment enables auxiliary venting of the hydraulic infusion pump, which can quickly expel the gas inside the pump body 100 and the drug reservoir 101, avoiding the risk of gas retention. It eliminates the need for an venting valve and effectively prevents internal liquid leakage. Furthermore, it forms a foolproof mechanism for the hydraulic infusion pump. The design of the foolproof part 30 ensures that the pressing sequence of each button is unique, preventing the operator from accidentally pressing the needle insertion button and causing injury to the human body. In addition, the auxiliary device in this embodiment can be quickly removed from the pump body 100, which can effectively prevent the waterproof and breathable membrane 60 from failing to seal under prolonged contact with liquid, thereby preventing leakage of the driving fluid inside the infusion pump.

[0053] Example 2

[0054] Combination Figure 1 and Figure 2As shown, the difference between this embodiment and Embodiment 1 is that a magnifying glass 50 is provided on the base 12. The magnifying glass 50 corresponds to the position of the medicine inlet 1012 of the medicine storage device 101. When it is necessary to add medicine to the medicine storage device 101, the base 11 is placed on a table or other flat surface. The operator can observe through the clear area of ​​the auxiliary device. The presence of the magnifying glass 50 allows for better observation of the liquid condition at the medicine inlet 1012. When a drop of liquid emerges from the medicine inlet 1012, it indicates that the medicine addition is complete.

[0055] In this embodiment, the bottom surface of the base 11 is bonded with adhesive to assist the auxiliary device in being set up vertically and to prevent the drug from tipping over.

[0056] The auxiliary device in this embodiment enables the hydraulic infusion pump to be stably placed on a desktop or other flat surface for drug dosing operations, while the presence of the magnifying glass 50 allows the operator to more accurately judge the drug dosing status of the drug reservoir 101.

[0057] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An auxiliary device for a hydraulic infusion pump, the auxiliary device being detachably connected to a pump body (100), wherein a medicine reservoir (101) and a bottom cover (102) are provided inside the pump body (100), the bottom cover (102) being located below the medicine reservoir (101), and a sealing plug (1021) is provided inside the bottom cover (102) to prevent liquid leakage from the pump body (100) and the medicine reservoir (101), characterized in that, The auxiliary device includes A frame (10) on which the pump body (100) is mounted; An exhaust section (20) is located on the frame (10) and penetrates the sealing plug (1021) to discharge the gas inside the pump body (100) and the drug reservoir (101); The foolproof part (30) includes a first foolproof element (31) located on the frame (10) to position the pump body (100).

2. The auxiliary device for a hydraulic infusion pump according to claim 1, characterized in that, The frame (10) includes a base (11) and a base (12), and the foolproof part (30) further includes a second foolproof component (32). The first foolproof component (31) and the second foolproof component (32) are both located on the base (12).

3. An auxiliary device for a hydraulic infusion pump according to claim 2, characterized in that, The pump body (100) is provided with a hydraulic switch (103), and the medicine reservoir (101) is provided with a needle insertion button (1011). The hydraulic switch (103) is located inside the first anti-foolproof component (31), and the needle insertion button (1011) is located inside the second anti-foolproof component (32).

4. An auxiliary device for a hydraulic infusion pump according to claim 3, characterized in that, Both the first anti-foolproof component (31) and the second anti-foolproof component (32) are snap-fit ​​fasteners.

5. An auxiliary device for a hydraulic infusion pump according to claim 3, characterized in that, A spring positioning bead (40) is provided inside the base (12) to elastically position the pump body (100).

6. An auxiliary device for a hydraulic infusion pump according to claim 5, characterized in that, A magnifying glass (50) is provided on the base (12), and the position of the magnifying glass (50) corresponds to the position of the drug inlet (1012) of the drug reservoir (101).

7. An auxiliary device for a hydraulic infusion pump according to claim 2, characterized in that, The exhaust section (20) includes an exhaust needle (21), a protective plug (22), and a return spring (23). The exhaust needle (21) is fixedly installed in the base (11). The protective plug (22) is connected to the base (11) through the return spring (23). The exhaust needle (21) passes through the protective plug (22).

8. An auxiliary device for a hydraulic infusion pump according to claim 7, characterized in that, The protective plug (22) is located at the air inlet end of the exhaust needle (21). In the initial state, the protective plug (22) blocks the air inlet end of the exhaust needle (21). After the protective plug (22) is pressed down, the air inlet end of the exhaust needle (21) extends out of the protective plug (22) to penetrate the sealing plug (1021).

9. An auxiliary device for a hydraulic infusion pump according to claim 8, characterized in that, The exhaust end of the exhaust needle (21) is provided with a waterproof and breathable membrane (60). When the exhaust needle (21) penetrates the sealing plug (1021), the gas passes through the exhaust needle (21) and the waterproof and breathable membrane (60) in sequence and enters the base (11) to be discharged.

10. An auxiliary device for a hydraulic infusion pump according to claim 9, characterized in that, The base (11) is provided with an exhaust channel (111) to discharge gas.

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