An insulin pump based tubing bubble elimination device

Abstract

The application belongs to the technical field of insulin pumps, and discloses a pipeline bubble removing device based on an insulin pump, which comprises an exhaust mechanism. Through cooperation of the exhaust mechanism and other structures, the insulin passes through each exhaust cavity. Since the communication parts of every two adjacent exhaust cavities are staggered, the insulin flows in an S shape. The bubbles that may exist float on the top of the exhaust cavity. Since the hydrophobic membrane can only make air pass through but not liquid, the bubbles are retained. The insulin experiences a sudden flow rate drop and bubble floating separation once every time it passes through an exhaust cavity. After multiple separations, the situation that some small bubbles are not taken away in time is reduced. The insulin flows from the left bottom to the right top in each exhaust cavity. The liquid has an upward velocity component, which is consistent with the direction of the bubble buoyancy, and accelerates the movement of the bubbles to the top gas collection space. Compared with pure horizontal flow which depends on buoyancy to float passively, the exhaust speed is faster and the capture is more sufficient.

Description

Technical Field

[0001] This invention belongs to the field of insulin pump technology, specifically a tubing air bubble removal device based on an insulin pump. Background Technology

[0002] An insulin pump is a portable medical electronic device used for continuous subcutaneous insulin infusion. It mainly consists of a pump body, a reservoir, and infusion tubing. It delivers insulin quantitatively from the reservoir to the patient's subcutaneous tissue via the infusion tubing at a preset basal rate and pre-meal bolus, mimicking the body's normal insulin secretion pattern and helping diabetic patients achieve stable blood glucose control throughout the day. The infusion tubing is the key channel connecting the reservoir to the patient's subcutaneous injection site. Its inner diameter is typically 1-2 mm, responsible for continuously delivering insulin from the reservoir into the body. During pump installation and daily use, factors such as thermal expansion and contraction due to changes in insulin temperature, minor air intake at the reservoir piston, and fluctuations in the sealing of tubing connections can easily cause micro-air bubbles to form inside the infusion tubing. These bubbles occupy the internal space of the tubing, leading to an actual insulin infusion volume lower than the nominal value. Furthermore, they can accumulate in narrow sections of the tubing, forming air emboli, increasing the risk of tubing blockage and affecting the accuracy and continuity of insulin infusion.

[0003] Currently, air bubbles already present in the infusion tubing are primarily removed by manual venting before pump installation or by filling the tubing with liquid to expel the bubbles. This involves tapping the reservoir to push the bubbles to the top and then pushing them out, or using the pump to fill the tubing with liquid and expel the bubbles from the needle tip. Both of these venting methods are one-time operations and only remove air bubbles present in the tubing at the moment of pump installation. During the continuous use period after pump installation, new air bubbles will continuously form in the tubing due to temperature fluctuations, minor air intake at connections, and other factors. One-time venting methods cannot remove the continuously generated air bubbles throughout the usage period, causing bubbles to gradually accumulate in the tubing and affecting the accuracy and continuity of insulin infusion. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides a tubing air bubble removal device based on an insulin pump, which solves the problem that new air bubbles are continuously generated in the tubing during the continuous wearing period after the pump is installed due to factors such as temperature fluctuations and minor air intake at the connection, and that one-time air venting methods cannot remove the air bubbles that are continuously generated during the use period.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tubing air bubble removal device based on an insulin pump, comprising an exhaust mechanism, wherein the exhaust mechanism comprises a protective box, wherein an inlet and an outlet are respectively provided on both sides of the protective box, the inlet and outlet are staggered, and a plurality of baffles are equidistantly installed inside the protective box.

[0006] Each pair of adjacent baffles forms an exhaust chamber, and the connection between each pair of adjacent exhaust chambers is staggered.

[0007] Each baffle, which contacts the bottom surface of the exhaust mechanism, is vertically and movably engaged with the interior of the exhaust mechanism.

[0008] The protective box is equipped with a clearance mechanism inside. The clearance mechanism can lift the movable baffle and collect the insulin remaining at the lower end of the exhaust mechanism to the end of the liquid outlet.

[0009] A gas storage mechanism is installed on the top of the protective box 1;

[0010] The gas storage mechanism includes a second protective box fixed to the top of the first protective box. The second protective box is connected to the top of each exhaust chamber, and a hydrophobic membrane is installed at the lower end of the interior of the second protective box.

[0011] Preferably, insulin enters the protective box through the inlet and exits through the outlet;

[0012] Each of the aforementioned exhaust chambers guides insulin to flow in an S-shape, wherein bubbles rise to the top of each exhaust chamber due to buoyancy and enter the interior of the second protective box.

[0013] Preferably, a metal filter screen is provided at the bottom of the second protective box, where it communicates with the first protective box;

[0014] The exhaust mechanism also includes spring telescopic rods. A spring telescopic rod is provided at each end of the top of the baffle inside the protective box. The end of the spring telescopic rod abuts against the bottom of the metal filter and always pushes the bottom of the baffle to be in close contact with the bottom surface inside the protective box.

[0015] Preferably, the clearance mechanism includes a threaded rod that is rotatably engaged with the lower end of the interior of the protective box, and a clearance plate that is movable inside the protective box is threaded around the outer periphery of the threaded rod.

[0016] Preferably, the exhaust mechanism further includes a rubber valve, which is disposed at the bottom of a baffle that is movably engaged inside the protective box, and the rubber valve covers the outer periphery of the threaded rod.

[0017] Preferably, the clearance mechanism further includes two spring telescopic rods symmetrically hinged to both sides of the clearance plate, and the sides of the spring telescopic rods are connected to the clearance plate through spring plates;

[0018] The exhaust mechanism also includes boat-shaped guide blocks, which are disposed at both ends of the bottom of the baffle inside the protective box and are inclined at both ends.

[0019] Preferably, the gas storage mechanism further includes a perforated plate fixed inside the second protective box and located above the hydrophobic membrane. The top of the second protective box and the perforated plate form a gas storage cavity, and the gas storage cavity is connected to the bottom of the perforated plate. A one-way valve connected to the inside of the gas storage cavity is installed on the side of the second protective box.

[0020] Preferably, the gas storage mechanism further includes a sealing plate that is movably engaged inside the gas storage cavity, and a threaded shaft is rotatably installed inside the gas storage cavity, with the threaded shaft threaded through the sealing plate.

[0021] Preferably, the gas storage mechanism further includes a gear fixed to the two ends of the threaded shaft, and a toothed plate is movably engaged with the outer side of the second protective box. The toothed plate meshes with the gear, and the end of the toothed plate extends to the outside of the second protective box.

[0022] Preferably, the gas storage mechanism further includes a second spring telescopic rod, which is connected to the end of the toothed plate and the second protective box;

[0023] The outer side of the second protective box is equipped with a slot for the movement of the toothed plate, and the end of the toothed plate is equipped with a dustproof plate to cover the slot.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] This invention, through the coordinated arrangement of venting mechanisms and other structures, directs insulin through various venting chambers. Because the connections between adjacent venting chambers are staggered, the insulin flows in an S-shape. Any air bubbles present will float to the top of the venting chambers. Since the hydrophobic membrane only allows air to pass through, not liquid, the bubbles are trapped. Each time insulin passes through a venting chamber, it experiences a sudden drop in flow velocity and bubble separation. This multiple separation reduces the likelihood of tiny bubbles being carried away before they can rise. Within each venting chamber, insulin flows from the lower left to the upper right. The liquid has an upward velocity component, consistent with the buoyancy of the bubbles, accelerating their movement towards the top gas collection space. Compared to purely horizontal flow that relies on passive buoyancy for upward movement, this method results in faster venting speed and more thorough bubble capture.

[0026] This invention utilizes a coordinated structure, including a clearance mechanism, to move a rotating threaded rod that scrapes against residual medication on the inner wall of a protective box. During this movement, the end of the rod contacts the inclined surface of a boat-shaped guide block. The boat-shaped guide block engages with the inclined surface of a spring telescopic rod, causing the baffle to rise and disengage from the clearance plate's path. When the clearance plate reaches the outlet, it is compressed by the inner wall of the protective box, causing the spring telescopic rod to fold into a vertical position and retract. The spring is compressed, thus maximizing the removal of residual medication from the protective box and minimizing adverse chemical reactions caused by cross-residue of medication.

[0027] This invention, through the coordination of structures such as a gas storage mechanism, moves a toothed plate, which drives the gear and its threaded shaft to rotate. The sealing plate moves and reduces the air pressure inside the protective box, allowing air bubbles to enter the protective box more quickly during insulin flow. However, during this period, the spring telescopic rod pushes the toothed plate back to its initial position. Due to the meshing of the gear and the toothed plate, and the threaded engagement between the threaded shaft and the sealing plate, the moving speed of the toothed plate is not too fast. That is, the pressure inside the protective box gradually returns to normal. During this period, air bubbles in the insulin enter the protective box, which exacerbates the rise in air pressure inside the protective box. When the air pressure returns to normal, the one-way valve opens to expel excess air, thereby improving the speed of air bubble removal and automating the generation and disappearance of negative pressure, thus enhancing the efficiency of air bubble elimination. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the internal structure of the protective box of the present invention;

[0030] Figure 3 This is a cross-sectional front view of the internal structure of the protective box of the present invention;

[0031] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0032] Figure 5 This is a schematic diagram showing the structural cooperation between the exhaust chamber and the gas storage mechanism of the present invention;

[0033] Figure 6 This is a schematic diagram of the planar structure of the exhaust chamber formed by the various baffles of the present invention;

[0034] Figure 7 This is a schematic diagram of the external structure of the protective box II of the present invention;

[0035] Figure 8 This is a schematic diagram of the gear and gear plate structure of the present invention.

[0036] Figure 9 This is a schematic diagram of the internal structure of the protective box II of the present invention.

[0037] In the diagram: 1. Exhaust mechanism; 11. Protective box one; 12. Liquid inlet; 13. Liquid outlet; 14. Baffle; 141. Boat-shaped guide block; 142. Spring telescopic rod; 143. Rubber flap; 15. Exhaust chamber; 2. Clearance mechanism; 21. Threaded rod one; 22. Clearance plate; 23. Spring telescopic rod one; 24. Spring plate; 3. Gas storage mechanism; 31. Protective box two; 32. Hydrophobic membrane; 33. Perforated plate; 34. Gas storage chamber; 341. One-way valve; 342. Sealing plate; 35. Gear; 36. Threaded shaft two; 37. Gear plate; 371. Dustproof plate; 372. Spring telescopic rod two. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1 to 9 As shown, the present invention provides a tubing air bubble removal device based on an insulin pump, including an exhaust mechanism 1. The exhaust mechanism 1 includes a protective box 11. An inlet 12 and an outlet 13 are respectively provided on both sides of the protective box 11. The inlet 12 and the outlet 13 are staggered. Several baffles 14 are installed at equal intervals inside the protective box 11.

[0040] Each pair of adjacent baffles 14 forms an exhaust chamber 15, and the connection between each pair of adjacent exhaust chambers 15 is staggered.

[0041] Insulin enters the protective box 11 through the inlet 12 and exits through the outlet 13;

[0042] Each exhaust chamber 15 guides insulin to flow in an S-shape, where bubbles rise to the top of each exhaust chamber 15 due to buoyancy and enter the interior of the second protective box 31.

[0043] Each baffle 14, which is in contact with the bottom of the exhaust mechanism 1, is vertically and movably engaged with the inside of the exhaust mechanism 1.

[0044] The protective box 11 is equipped with a venting mechanism 2 inside. The venting mechanism 2 can lift the movable baffle 14 and collect the insulin remaining at the lower end of the exhaust mechanism 1 to the end of the outlet 13.

[0045] The top of the protective box 11 is equipped with a gas storage mechanism 3;

[0046] The gas storage mechanism 3 includes a second protective box 31 fixed to the top of the first protective box 11. The second protective box 31 is connected to the top of each exhaust chamber 15. A hydrophobic membrane 32 is installed at the lower end of the interior of the second protective box 31.

[0047] Using the above scheme: connect the outlet of the insulin pump to the inlet 12, so that the insulin enters the protective box 11 through the inlet 12 and is discharged from the outlet 13. The outlet 13 is then injected into the human body through the infusion tube and the needle.

[0048] During the process of insulin entering the protective box 11, it preferentially passes through each exhaust chamber 15. Since the connection between each pair of adjacent exhaust chambers 15 is staggered, the insulin will flow in an S-shape. Any air bubbles that may be present will float on the top of the exhaust chamber 15. Since the hydrophobic membrane 32 only allows air to pass through, not liquid, the air bubbles will be trapped.

[0049] It is important to note that during insulin flow, the flow rate is effectively reduced as insulin passes through the S-shaped multi-stage exhaust channel formed by the exhaust chamber 15, preventing air bubbles from being carried away with the insulin and reducing the accumulation of air bubbles during the usage cycle.

[0050] Each time insulin passes through a venting chamber 15, it experiences a sudden drop in flow rate and the separation of rising bubbles. After multiple separations, the number of tiny bubbles that are carried away before they can rise is reduced, thereby enhancing the venting effect.

[0051] Insulin flows from the lower left to the upper right within each exhaust chamber 15. The liquid has an upward velocity component, which is consistent with the direction of bubble buoyancy, accelerating the bubbles towards the top gas collection space. Compared to purely horizontal flow that relies on buoyancy for passive upward movement, this method results in faster exhaust speed and more complete gas capture.

[0052] The removal of air bubbles mainly relies on the S-shaped venting chamber 15 to slow down the flow rate of the liquid medicine, preventing the flow speed from being too fast and carrying air bubbles outward. At the same time, the air bubbles can also be discharged to the outside through the hydrophobic membrane 32 located at the top. Therefore, in actual operation, it is only necessary to connect the infusion tube to the inlet 12 and inject it into the body through the outlet 13. There are not many movable mechanical mechanisms designed, which can effectively improve the sealing and integration of the device, and further enhance the reliability of the device in operation.

[0053] Because there are few movable parts in the device, the dimensions of the exhaust chamber 15 and the hydrophobic membrane 32 can be changed. At the same time, the volume of the device can also be changed accordingly to adapt to the volume of the actual insulin pump. Furthermore, when the volume of the device is similar to that of the insulin pump, the two can be combined to improve the convenience for patients to carry both the insulin pump and the device at the same time.

[0054] like Figures 1-9 As shown, a metal filter screen is provided at the bottom of the second protective box 31, which is connected to the first protective box 11.

[0055] The exhaust mechanism 1 also includes a spring telescopic rod 142. A spring telescopic rod 142 is provided at both ends of the top of the baffle 14 inside the protective box 11. The end of the spring telescopic rod 142 abuts against the bottom of the metal filter and always pushes the bottom of the baffle 14 to be in close contact with the bottom surface inside the protective box 11.

[0056] The clearance mechanism 2 includes a threaded rod 21 that is rotatably engaged with the lower end of the protective box 11, and a clearance plate 22 that is movable inside the protective box 11 is threaded around the outer periphery of the threaded rod 21.

[0057] The clearance mechanism 2 also includes two spring telescopic rods 23 symmetrically hinged to both sides of the clearance plate 22. The sides of the spring telescopic rods 23 are connected to the clearance plate 22 through spring plates 24.

[0058] The exhaust mechanism 1 also includes a boat-shaped guide block 141, which is located at both ends of the bottom of the baffle 14 inside the protective box 11. The two ends of the boat-shaped guide block 141 are inclined.

[0059] The above solution requires that when the device is no longer in use or when new insulin is replaced, the medication inside the protective box 11 must be completely removed to avoid chemical reactions of the medication.

[0060] During this process, the threaded rod 21 is rotated, causing the clearance plate 22 to move and scrape against the residual liquid inside the lower inner wall of the protective box 11. During the movement, the spring plate 24 always pushes the spring telescopic rod 23 to an inclined state, and the end of the spring telescopic rod 23 abuts against the inside of the protective box 11. When the spring telescopic rod 23 is moved by the clearance plate 22, the end of the spring telescopic rod 23 will contact the inclined surface of the boat-shaped guide block 141. At this time, the boat-shaped guide block 141 cooperates with the inclined surface of the spring telescopic rod 23, and the baffle 14 will eventually rise, thereby getting out of the moving path of the clearance plate 22.

[0061] When the clear plate 22 is moved to the end of the outlet 13, it is squeezed by the inner wall of the protective box 11, so the spring telescopic rod 23 can be folded into a vertical state and retracted, and the spring plate 24 is compressed, thereby removing the residual medicine inside the protective box 11 as much as possible and minimizing the adverse chemical reactions caused by cross-residue of medicine.

[0062] It is also important to note that after insulin injection, some residual insulin will inevitably remain at the bottom of the venting chamber 15. Over time, this residual insulin will dry out at the bottom of the venting chamber, causing some of the medication to undergo a new chemical reaction, resulting in insulin ineffectiveness and even harm to the patient's body. Therefore, the main purpose of the clearance plate 22 is to scrape away the dried medication at the bottom of the venting chamber 15, so that the residual medication can be cleaned more thoroughly during subsequent medication changes or cleaning.

[0063] like Figures 1-9 As shown, the exhaust mechanism 1 also includes a rubber valve 143, which is disposed at the bottom of the baffle 14 that is movably snapped into the inside of the protective box 11, and covers the outer periphery of the threaded rod 21.

[0064] The above solution involves the bottom of one of the baffles 14 constituting the exhaust chamber 15 needing to abut against the interior of the protective box 11 to restrict the flow path of insulin. However, the threaded rod 21 needs to continuously drive the clearance plate 22 to the end of the outlet 13. Therefore, a rubber valve 143 is provided at the lower end of the corresponding baffle 14, and the rubber valve 143 is provided with a gap for the threaded rod 21 to disengage. Thus, it will not be affected during the rotation of the threaded rod 21 and the rise of the baffle 14. Furthermore, during the flow of insulin, the rubber valve 143 can also prevent leakage in each exhaust chamber 15, further improving the device's ability to remove air bubbles and its stability.

[0065] like Figures 1-9 As shown, the gas storage mechanism 3 also includes a perforated plate 33 fixed inside the second protective box 31 and located above the hydrophobic membrane 32. The top of the second protective box 31 and the perforated plate 33 form a gas storage cavity 34. The gas storage cavity 34 is connected to the bottom of the perforated plate 33. A one-way valve 341 connected to the inside of the gas storage cavity 34 is installed on the side of the second protective box 31.

[0066] The gas storage mechanism 3 also includes a sealing plate 342 that is movably engaged inside the gas storage cavity 34. A threaded shaft 36 is rotatably installed inside the gas storage cavity 34, and the threaded shaft 36 is threaded through the sealing plate 342.

[0067] The gas storage mechanism 3 also includes a gear 35 fixed to the end of the threaded shaft 36, and a toothed plate 37 is movably engaged on the outside of the protective box 31. The toothed plate 37 meshes with the gear 35, and the end of the toothed plate 37 extends to the outside of the protective box 31.

[0068] The gas storage mechanism 3 also includes a spring telescopic rod 372, which is connected to the end of the toothed plate 37 and the protective box 31.

[0069] The outer side of the protective box 31 is provided with a slot for the movement of the toothed plate 37, and the end of the toothed plate 37 is provided with a dustproof plate 371 that covers the slot.

[0070] Using the above scheme: the connection between the second protective box 31 and the first protective box 11 is located at the top of the first protective box 11. When the bubble rises due to buoyancy, it can pass through the hydrophobic membrane 32 and enter the interior of the second protective box 31.

[0071] However, it is important to note that in order to prevent the hydrophobic membrane 32 from being damaged when the insulin flows too fast and impacts it, a metal filter is installed at the bottom of the second protective box 31 to reduce the impact force. At the same time, a perforated plate 33 is installed at the top of the hydrophobic membrane 32 to reduce the force that the impact force directly acts on the hydrophobic membrane 32 when the device is hit during daily use, thus further protecting the hydrophobic membrane 32 and extending its service life.

[0072] If the insulin pump produces too many air bubbles due to prolonged use, the gear 35 will rotate by moving the end of the toothed plate 37. The gear 35 will then rotate the threaded shaft 36 and drive the sealing plate 342 to move. During this time, the one-way valve 341 will not allow outside air to enter, and the air pressure inside the air storage chamber 34 and the protective box 31 will be reduced. This will allow air bubbles to enter the protective box 31 more quickly during insulin flow.

[0073] It is important to note that after moving the toothed plate 37, the insulin pump is immediately started for injection. During this process, the spring telescopic rod 372 will push the toothed plate 37 back to its initial position. However, due to the meshing of the gear 35 and the toothed plate 37, and the threaded engagement of the threaded shaft 36 and the sealing plate 342, the moving speed of the toothed plate 37 will not be too fast. That is, the pressure inside the protective box 31 will slowly and gradually return to normal. During this period, air bubbles in the insulin will enter the protective box 31, which will exacerbate the rise in internal air pressure. When the air pressure returns to normal, the one-way valve 341 will open to expel excess air, thereby improving the speed of air bubble removal and the automation of negative pressure generation and disappearance, and enhancing the efficiency of air bubble elimination.

[0074] Working principle and usage process of this invention:

[0075] Connect the outlet of the insulin pump to the inlet 12 so that the insulin enters the protective box 11 through the inlet 12 and is discharged from the outlet 13. The outlet 13 is then injected into the human body through the infusion tube and the needle.

[0076] During the process of insulin entering the protective box 11, it preferentially passes through each exhaust chamber 15. Since the connection between each pair of adjacent exhaust chambers 15 is staggered, the insulin will flow in an S-shape. Any air bubbles that may be present will float on the top of the exhaust chamber 15. Since the hydrophobic membrane 32 only allows air to pass through, not liquid, the air bubbles will be trapped.

[0077] The gear 35 is rotated by moving the end of the toothed plate 37. The gear 35 drives the threaded shaft 36 to rotate and drives the sealing plate 342 to move. During this period, the one-way valve 341 cannot allow external air to enter, and the air pressure inside the air storage chamber 34 and the protective box 31 will be reduced. During insulin flow, air bubbles can enter the protective box 31 more quickly.

[0078] During this period, the spring telescopic rod 372 will push the toothed plate 37 back to its initial position. However, due to the meshing of the gear 35 and the toothed plate 37, and the threaded engagement of the threaded shaft 36 and the sealing plate 342, the moving speed of the toothed plate 37 will not be too fast. That is, the pressure inside the protective box 31 will slowly and gradually return to normal. During this period, air bubbles in the insulin will enter the protective box 31, which will aggravate the rise in air pressure inside the protective box 31. When the air pressure returns to normal, the one-way valve 341 will open to remove excess air.

[0079] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0080] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tubing air bubble removal device based on an insulin pump, characterized in that: It includes an exhaust mechanism (1), which includes a protective box (11). The protective box (11) has an inlet (12) and an outlet (13) on both sides, respectively. The inlet (12) and outlet (13) are staggered. Several baffles (14) are installed at equal intervals inside the protective box (11). Each pair of adjacent baffles (14) forms an exhaust chamber (15), and the connection between each pair of adjacent exhaust chambers (15) is staggered. Each baffle (14) on the bottom surface of the exhaust mechanism (1) is vertically and movablely engaged with the interior of the exhaust mechanism (1); The protective box (11) is equipped with a clearance mechanism (2), which can lift the movable baffle (14) and gather the insulin remaining at the lower end of the exhaust mechanism (1) to the end of the outlet (13). The top of the protective box (11) is equipped with a gas storage mechanism (3). The gas storage mechanism (3) includes a second protective box (31) fixed to the top of the first protective box (11). The second protective box (31) is connected to the top of each exhaust chamber (15). A hydrophobic membrane (32) is installed at the lower end inside the second protective box (31).

2. The tubing air bubble removal device based on an insulin pump according to claim 1, characterized in that: Insulin enters the protective box 1 (11) through the inlet (12) and exits through the outlet (13); Each of the aforementioned exhaust chambers (15) guides insulin to flow in an S-shape, wherein bubbles rise to the top of each exhaust chamber (15) due to buoyancy and enter the interior of the second protective box (31).

3. The tubing air bubble removal device based on an insulin pump according to claim 1, characterized in that: A metal filter screen is provided at the bottom of the second protective box (31) where it connects with the first protective box (11); The exhaust mechanism (1) also includes a spring telescopic rod (142). A spring telescopic rod (142) is provided at both ends of the top of the baffle (14) inside the protective box (11). The end of the spring telescopic rod (142) abuts against the bottom of the metal filter and always pushes the bottom of the baffle (14) to be in close contact with the bottom surface inside the protective box (11).

4. The tubing air bubble removal device based on an insulin pump according to claim 3, characterized in that: The clearance mechanism (2) includes a threaded rod (21) that is rotatably engaged with the lower end of the inner side of the protective box (11), and a clearance plate (22) that is movable inside the protective box (11) is threaded on the outer periphery of the threaded rod (21).

5. The tubing air bubble removal device based on an insulin pump according to claim 4, characterized in that: The exhaust mechanism (1) also includes a rubber valve (143), which is located at the bottom of a baffle (14) that is movably snapped into the inside of the protective box (11), and covers the outer periphery of the threaded rod (21).

6. The tubing air bubble removal device based on an insulin pump according to claim 5, characterized in that: The clearance mechanism (2) also includes two spring telescopic rods (23) symmetrically hinged to both sides of the clearance plate (22), and the sides of the spring telescopic rods (23) are connected to the clearance plate (22) through spring plates (24); The exhaust mechanism (1) also includes a boat-shaped guide block (141), which is located at both ends of the bottom of the baffle (14) inside the protective box (11). The two ends of the boat-shaped guide block (141) are inclined.

7. The tubing air bubble removal device based on an insulin pump according to claim 1, characterized in that: The gas storage mechanism (3) also includes a perforated plate (33) fixed inside the second protective box (31) and located above the hydrophobic membrane (32). The top of the second protective box (31) and the perforated plate (33) form a gas storage cavity (34). The gas storage cavity (34) is connected to the bottom of the perforated plate (33). A one-way valve (341) connected to the inside of the gas storage cavity (34) is installed on the side of the second protective box (31).

8. The tubing air bubble removal device based on an insulin pump according to claim 7, characterized in that: The gas storage mechanism (3) also includes a sealing plate (342) that is movably engaged inside the gas storage cavity (34). A threaded shaft (36) is rotatably installed inside the gas storage cavity (34), and the threaded shaft (36) is threaded through the sealing plate (342).

9. The tubing air bubble removal device based on an insulin pump according to claim 8, characterized in that: The gas storage mechanism (3) also includes a gear (35) fixed to the end of the threaded shaft (36), and a toothed plate (37) is movably engaged on the outside of the protective box (31). The toothed plate (37) meshes with the gear (35), and the end of the toothed plate (37) extends to the outside of the protective box (31).

10. The tubing air bubble removal device based on an insulin pump according to claim 9, characterized in that: The gas storage mechanism (3) also includes a second spring telescopic rod (372), which is connected to the end of the toothed plate (37) and the second protective box (31). The outer side of the second protective box (31) is provided with a slot for the movement of the toothed plate (37), and the end of the toothed plate (37) is provided with a dustproof plate (371) to cover the slot.

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