High-precision electronic infusion pump

Abstract

The invention belongs to the technical field of infusion pumps, and particularly relates to a high-precision electronic infusion pump which is additionally provided with a clamping type three-way pipe with pointed cone thorns at different angles, when liquid medicine is conveyed, the liquid medicine is in direct contact with the pointed cone thorns, so that bubbles insoluble in the liquid medicine are punctured, and due to the fact that the output power of a small air pump is slightly larger than that of the infusion pump, the liquid medicine can not be dissolved in the liquid medicine. By matching with the gravity of the liquid medicine, the gas is discharged from the exhaust pipe, and the liquid medicine flows into the small liquid storage tank through the vertical pipe, so that gas separation is completed; a plurality of groups of impurity filter plates and an electric heating wire are used for efficiently filtering and heating liquid medicine during conveying, so that the product is more suitable for a low-temperature environment, and the comfort of a patient during liquid injection is improved; and the product is provided with a plurality of groups of sensing elements to monitor the liquid flow, flow velocity, temperature and impurity separation parameters in the infusion process, and the parameters are replaced through the touch keys, so that the use is quick and convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of infusion pumps, and in particular relates to a high-precision electronic infusion pump. Background Art

[0002] The infusion method of the electronic infusion pump is mainly achieved by the motor driving the transmission structure to squeeze the infusion pipeline. The flow rate adjustment is mainly achieved by the main control IC driving the motor to work at different frequencies to achieve different flow rates. In the flow rate adjustment interface on the display screen, the adjustment of different flow rates is achieved through the button control on the button surface. After the flow rate is set and confirmed, the existing technology will continue to work at the set flow rate. If the flow rate is too fast or too slow in actual work, it cannot be restored to the normal set flow rate through automatic adjustment.

[0003] In the infusion principle of existing electronic infusion pumps, once the flow rate is set, it cannot be adjusted automatically, which can easily cause the flow rate to be too fast or too slow. The most direct feeling for users is pain caused by insufficient infusion or other side effects caused by excessive infusion. From the perspective of clinical use, it will cause a large amount of waste of infusion liquid; on the other hand, for low-temperature use environments, traditional infusion pumps are not equipped with relevant heating structures to heat the liquid, which reduces the patient's comfort during the infusion process.

[0004] Therefore, a high-precision electronic infusion pump is designed to solve the above problems. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a high-precision electronic infusion pump to achieve high-precision drug liquid delivery while achieving the effects of filtering and automatic heating of the drug liquid.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-precision electronic infusion pump, comprising a self-heating infusion device, wherein the self-heating infusion device comprises a driver housing, a liquid injection housing, a transparent liquid injection tube, a touch key, a delivery pipeline, an exhaust component, a heating component and a liquid medicine filter component, one side of the driver housing is snap-connected with the surface of the liquid injection housing, the touch key is mounted on the inner side of the driver housing, the transparent liquid injection tube is mounted on the inner side of the liquid outlet end of the liquid injection housing, the delivery pipeline is mounted inside the driver housing, the exhaust component is arranged at the upper end of the heating component, the heating component is fixedly connected to the inside of the driver housing, and the liquid medicine filter component is arranged inside the driver housing; The driver housing is used to support the touch key, the output line of the touch key is connected to the control switch pin of the self-heating infusion device and is used to adjust the infusion parameters, the injection shell cooperates with the transparent infusion tube to store and infuse the medicine, the delivery pipeline is used to connect the exhaust component and the heating component, the exhaust component is used to discharge the bubbles inside the medicine, the heating component is used to heat the liquid and ensure constant temperature, and the medicine filter component is used to fully filter impurities from the medicine in the delivery pipeline.

[0007] Preferably, the exhaust assembly includes a snap-on tee, a sealing gasket, an exhaust pipe, a first sharp cone thorn, a second sharp cone thorn and a small air pump, the sealing gasket is adhesively connected to the inner wall of the feed port of the snap-on tee, the snap-on tee is used to separate and filter the liquid and bubbles in the medicine, the first sharp cone thorn is arranged in a circular array in the middle of the snap-on tee, the exhaust pipe is installed on the top of the snap-on tee and is used for exhaust, the second sharp cone thorn is installed below the first sharp cone thorn, and the second sharp cone thorn is inclined at a 45° angle in a circular array at the bottom of the snap-on tee, and the small air pump is installed on the outside of the exhaust pipe and is used for exhaust.

[0008] Preferably, the heating assembly includes a heating base, an electric heating wire, a vertical pipe and a small liquid storage tank. The heating base is fixedly connected to the inside of the driver housing, the electric heating wire is installed inside the heating base and is used to heat the small liquid storage tank, the top of the small liquid storage tank is fixedly connected to the bottom of the vertical pipe, and the top of the vertical pipe is tightly fitted with the bottom inner surface of the clip-on three-way pipe.

[0009] Preferably, a direct-connection pipe, a temperature sensor, a one-way valve and an infusion pump are also installed at the bottom of the small liquid storage tank. The outer side of the direct-connection pipe is fixedly connected to the liquid inlet end of the medicine filter assembly. The temperature sensor is installed on the outer side of the direct-connection pipe for detecting the temperature of the medicine after heating. The one-way valve is installed on the outer side of the direct-connection pipe for preventing the backflow of the medicine. The infusion pump is fixedly connected to one side of the direct-connection pipe for conveying the medicine, and the output power of the infusion pump is less than the output power of the small air pump.

[0010] Preferably, the drug liquid filtration assembly includes a sealing box, a small motor, a drive shaft, a guide shaft, a socket disk, a circular frame and an impurity filter plate. The small motor is installed inside the sealing box, the bottom of the drive shaft is fixedly connected to the motor shaft of the small motor through a coupling, the guide shaft passes through one side of the sealing box and fits tightly with the middle of the socket disk, the circular frame is installed on the outside of the socket disk, and the impurity filter plate is inserted into the inside of the circular frame and is used to filter the drug liquid.

[0011] Preferably, a dust cover is also provided on the outer side of the impurity filter plate.

[0012] Preferably, a liquid outlet pipe and a second one-way valve are also installed on the outside of the discharge end of the dust cover. The liquid outlet pipe runs through the interior of the driver housing and fits tightly with the inner surface of the driver housing. The second one-way valve is installed on the outside of the liquid outlet pipe to prevent the filtered liquid from flowing back.

[0013] Preferably, the outer sides of the delivery pipeline, the direct-connection pipe and the liquid outlet pipe are all provided with mass flow meters of the same model.

[0014] Preferably, a plug block and a limit groove which are adapted to each other are further provided at the connection between the driver housing and the liquid injection housing.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a clamping three-way pipe with sharp cone thorns at different angles is added to the product. When the liquid medicine is transported, it directly contacts with the sharp cone thorns, thereby puncturing the bubbles insoluble in the liquid medicine. Since the output power of the small air pump is slightly greater than the output power of the infusion pump, the gas is discharged from the exhaust pipe to the outside in conjunction with the gravity of the liquid medicine, and the liquid medicine flows into the small liquid storage tank through the vertical pipe to complete the gas separation.

[0016] 2. In the present invention, this product is equipped with multiple groups of impurity filter plates and electric heating wires to complete efficient filtration and heating of the drug solution during transportation, making this product more suitable for low temperature environments, thereby improving the patient's comfort during injection.

[0017] 3. In the present invention, the product is provided with multiple sets of sensor elements to monitor the liquid flow, flow rate, temperature and impurity separation parameters during the infusion process, and the parameters can be changed by touching the keys, which is quick and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is an exploded view of the liquid injection shell and the driver housing in the present invention; Figure 3 It is a structural schematic diagram of the liquid outlet pipeline in the present invention; Figure 4 It is a structural schematic diagram of the heating component in the present invention; Figure 5 It is a cross-sectional view of the sealing box and the dust cover in the present invention; Figure 6It is a cross-sectional view of the interior of the clamping type three-way pipe in the present invention; Figure 7 It is a schematic diagram of the structure inside the heating base in the present invention; Figure 8 It is a structural schematic diagram of the Chinese medicine liquid filtering component of the present invention; In the figure: 1. Self-heating infusion device; 2. Driver housing; 3. Injection shell; 4. Transparent infusion tube; 5. Touch key; 6. Delivery pipeline; 7. Exhaust assembly; 8. Heating assembly; 9. Liquid filter assembly; 10. Snap-on three-way pipe; 11. Sealing pad; 12. Exhaust pipe; 13. First sharp cone thorn; 14. Second sharp cone thorn; 15. Small air pump; 16. Heating base; 17. Electric heating wire; 18. Vertical pipe; 19. , small liquid storage tank; 20, direct connection pipe; 21, temperature sensor; 22, one-way valve one; 23, infusion pump; 24, sealing box; 25, small motor; 26, drive shaft; 27, guide shaft; 28, socket plate; 29, circular frame; 30, impurity filter plate; 31, dust cover; 32, liquid outlet pipe; 33, one-way valve two; 34, mass flow meter; 35, plug-in block; 36, limit groove; 37, eccentric gears. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-8 A high-precision electronic infusion pump shown includes a self-heating infusion device 1, which includes a driver housing 2, a liquid injection housing 3, a transparent liquid infusion tube 4, a touch key 5, a delivery pipeline 6, an exhaust component 7, a heating component 8 and a liquid medicine filter component 9. One side of the driver housing 2 is snap-fitted with the surface of the liquid injection housing 3, the touch key 5 is mounted on the inner side of the driver housing 2, the transparent liquid infusion tube 4 is mounted on the inner side of the liquid outlet end of the liquid injection housing 3, the delivery pipeline 6 is mounted inside the driver housing 2, the exhaust component 7 is arranged at the upper end of the heating component 8, the heating component 8 is fixedly connected to the inside of the driver housing 2, and the liquid medicine filter component 9 is arranged inside the driver housing 2; The driver housing 2 is used to support the touch key 5. The output line of the touch key 5 is connected to the control switch pin of the self-heating infusion device 1 and is used to adjust the infusion parameters. The injection shell 3 is used with the transparent infusion tube 4 to store and infuse the medicine. The delivery pipeline 6 is used to connect the exhaust component 7 and the heating component 8. The exhaust component 7 is used to discharge the bubbles inside the medicine. The heating component 8 is used to heat the liquid and ensure constant temperature. The medicine filter component 9 is used to fully filter impurities from the medicine in the delivery pipeline 6.

[0021] This product is equipped with multiple groups of impurity filter plates 30 and electric heating wires 17 to complete efficient filtration and heating of the drug solution during transportation, making this product more suitable for low temperature environments, thereby improving the patient's comfort during infusion; multiple groups of sensor elements are used to monitor the liquid flow, flow rate, temperature and impurity separation parameters during the infusion process, and the parameters can be changed by touching the key 5, which is quick and convenient to use.

[0022] The exhaust assembly 7 includes a snap-on tee 10, a sealing gasket 11, an exhaust pipe 12, a first sharp cone thorn 13, a second sharp cone thorn 14 and a small air pump 15. The sealing gasket 11 is adhesively connected to the inner wall of the feed port of the snap-on tee 10. The snap-on tee 10 is used to separate and filter the liquid and bubbles in the medicine solution. The first sharp cone thorn 13 is arranged in a circular array in the middle of the snap-on tee 10. The exhaust pipe 12 is installed at the top of the snap-on tee 10 and is used for exhaust. The second sharp cone thorn 14 is installed below the first sharp cone thorn 13, and the second sharp cone thorn 14 is inclined at a 45° angle in a circular array at the bottom of the snap-on tee 10. The small air pump 15 is installed on the outside of the exhaust pipe 12 and is used for exhaust.

[0023] The medicine liquid will pass through the delivery pipeline 6 during transportation. At this time, the mass flow meter 34 will complete a flow measurement when the medicine liquid enters, and then enter the interior of the snap-on three-way pipe 10 through the delivery pipeline 6. During this process, the tip of the first sharp cone thorn 13 is facing the outside of the outlet of the delivery pipeline 6. Under the action of inertia, the bubbles in the medicine liquid are broken. Then, under the action of gravity, the medicine liquid will flow to the second sharp cone thorn 14 inclined at a 45° angle. The excess bubbles will be punctured for the second time in the process of flowing to the vertical pipe 18. Since the output power of the small air pump 15 is slightly greater than the output power of the infusion pump 23, combined with the gravity of the medicine liquid, the gas is discharged from the exhaust pipe 12 to the outside, and the medicine liquid flows into the small liquid storage tank 19 through the vertical pipe 18 to complete the gas separation.

[0024] The heating assembly 8 includes a heating base 16, an electric heating wire 17, a vertical pipe 18 and a small liquid storage tank 19. The heating base 16 is fixedly connected to the inside of the driver housing 2. The electric heating wire 17 is installed inside the heating base 16 and is used to heat the small liquid storage tank 19. The top of the small liquid storage tank 19 is fixedly connected to the bottom of the vertical pipe 18, and the top of the vertical pipe 18 is tightly fitted with the bottom inner surface of the clip-on three-way pipe 10.

[0025] A direct-connected pipe 20, a temperature sensor 21, a one-way valve 22 and an infusion pump 23 are also installed at the bottom of the small liquid storage tank 19. The outer side of the direct-connected pipe 20 is fixedly connected to the liquid inlet end of the liquid medicine filter assembly 9. The temperature sensor 21 is installed on the outer side of the direct-connected pipe 20 for detecting the temperature of the liquid medicine after heating. The one-way valve 22 is installed on the outer side of the direct-connected pipe 20 for preventing the liquid medicine from flowing back. The infusion pump 23 is fixedly connected to one side of the direct-connected pipe 20 for conveying the liquid medicine, and the output power of the infusion pump 23 is less than the output power of the small air pump 15.

[0026] According to the preset temperature, the electric heating wire 17 of the heating base 16 is electrically started to heat the internal medicine liquid of the small liquid storage tank 19 until it is stable as specified. When the set temperature is reached, the infusion pump 23 works to draw the medicine liquid inside the small liquid storage tank 19 from the direct-connection pipe 20. During this process, the internal medicine liquid can be measured by the secondary flow meter 34. The temperature sensor 21 can monitor the temperature of the medicine liquid in real time through the induction probe when the medicine liquid flows in. If the temperature is found to be too low or the flow rate is too fast, the electrical signal is fed back to the control circuit of this product and an alarm is sounded, thereby preventing the medicine liquid from continuing to flow.

[0027] The liquid medicine filtering assembly 9 includes a sealing box 24, a small motor 25, a drive shaft 26, a guide shaft 27, a socket disc 28, a circular frame 29 and an impurity filter plate 30. The small motor 25 is installed inside the sealing box 24. The bottom of the drive shaft 26 is fixedly connected to the motor shaft of the small motor 25 through a coupling. The guide shaft 27 passes through one side of the sealing box 24 and fits tightly with the middle of the socket disc 28. The circular frame 29 is installed on the outside of the socket disc 28. The impurity filter plate 30 is inserted into the inside of the circular frame 29 and is used to filter the liquid medicine.

[0028] A dust cover 31 is also provided on the outer side of the impurity filter plate 30 .

[0029] After the infusion pump 23 delivers the medicine liquid into the dust cover 31, it will pass through the impurity filter plate 30 that fits in the dust cover 31, thereby filtering impurities from the outflowing medicine liquid. During this process, the small motor 25 in the sealing box 24 can be automatically started to drive the top drive shaft 26 to rotate. With the cooperation of the eccentric gear 37, the guide shaft 27 can drive the socket plate 28 and the circular frame 29 to rotate inside the dust cover 31, so that the new impurity filter plate 30 is re-blocked on the outside of the liquid outlet of the dust cover 31 to ensure the real-time effectiveness of the filtration.

[0030] A liquid outlet pipe 32 and a one-way valve 33 are also installed on the outside of the discharge end of the dust cover 31. The liquid outlet pipe 32 runs through the interior of the driver housing 2 and fits tightly with the inner surface of the driver housing 2. The one-way valve 33 is installed on the outside of the liquid outlet pipe 32 to prevent the filtered liquid from flowing back.

[0031] Mass flow meters 34 of the same model are arranged on the outsides of the delivery pipeline 6 , the direct connection pipe 20 and the liquid outlet pipeline 32 .

[0032] The connection between the driver housing 2 and the liquid injection housing 3 is also provided with an insert block 35 and a limit groove 36 which are adapted to each other.

[0033] When the fully filtered liquid medicine flows out from the dust cover 31, it will pass through the liquid outlet pipe 32 and flow into the liquid injection shell 3 and the transparent infusion tube 4 to complete the infusion. At this time, the mass flow meter 34 on the top of the liquid outlet pipe 32 will complete the third flow and flow velocity detection before the liquid is discharged. If the flow rate is too low and an alarm is issued, and the problem is not effectively solved after replacing the impurity filter plate 30, it means that there is a slight leak in the section of the pipeline from the direct connection pipe 20 to the liquid outlet pipe 32, which facilitates accident investigation and completes high-precision liquid medicine infusion.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-precision electronic infusion pump, comprising a self-heating infusion device (1), characterized in that: The self-heating infusion device (1) comprises a driver housing (2), a liquid injection housing (3), a transparent liquid infusion tube (4), a touch key (5), a delivery pipeline (6), an exhaust component (7), a heating component (8) and a liquid medicine filter component (9), one side of the driver housing (2) is snap-fitted to the surface of the liquid injection housing (3), the touch key (5) is mounted on the inner side of the driver housing (2), the transparent liquid infusion tube (4) is mounted on the inner side of the liquid outlet end of the liquid injection housing (3), the delivery pipeline (6) is mounted inside the driver housing (2), the exhaust component (7) is arranged at the upper end of the heating component (8), the heating component (8) is fixedly connected to the inside of the driver housing (2), and the liquid medicine filter component (9) is arranged inside the driver housing (2); The driver housing (2) is used to support the touch key (5); the output line of the touch key (5) is connected to the control switch pin of the self-heating infusion device (1) and is used to adjust the infusion parameters; the injection housing (3) cooperates with the transparent infusion tube (4) to store and infuse the medicine liquid; the delivery pipeline (6) is used to connect the exhaust component (7) and the heating component (8); the exhaust component (7) is used to exhaust bubbles in the medicine liquid; the heating component (8) is used to heat the liquid and ensure constant temperature; the medicine liquid filtering component (9) is used to fully filter impurities from the medicine liquid in the delivery pipeline (6).

2. A high-precision electronic infusion pump according to claim 1, characterized in that: The exhaust assembly (7) comprises a snap-on tee (10), a sealing gasket (11), an exhaust pipe (12), a first conical thorn (13), a second conical thorn (14) and a small air pump (15); the sealing gasket (11) is adhesively connected to the inner wall of the feed port of the snap-on tee (10); the snap-on tee (10) is used to separate and filter liquid and bubbles in the liquid medicine; the first conical thorns (13) are arranged in a circular array in the middle of the snap-on tee (10); the exhaust pipe (12) is installed at the top of the snap-on tee (10) and is used for exhaust; the second conical thorns (14) are installed below the first conical thorns (13), and the second conical thorns (14) are arranged in a circular array at an angle of 45° at the bottom of the snap-on tee (10); and the small air pump (15) is installed on the outside of the exhaust pipe (12) and is used for exhaust.

3. A high-precision electronic infusion pump according to claim 2, characterized in that: The heating assembly (8) comprises a heating base (16), an electric heating wire (17), a vertical pipe (18) and a small liquid storage tank (19); the heating base (16) is fixedly connected to the inside of the driver housing (2); the electric heating wire (17) is installed inside the heating base (16) and is used to heat the small liquid storage tank (19); the top of the small liquid storage tank (19) is fixedly connected to the bottom of the vertical pipe (18); the top of the vertical pipe (18) is tightly fitted to the bottom inner surface of the clamping three-way pipe (10).

4. A high-precision electronic infusion pump according to claim 3, characterized in that: A straight-connected pipe (20), a temperature sensor (21), a one-way valve (22) and an infusion pump (23) are also installed at the bottom of the small liquid storage tank (19); the outer side of the straight-connected pipe (20) is fixedly connected to the liquid inlet end of the liquid medicine filter assembly (9); the temperature sensor (21) is installed on the outer side of the straight-connected pipe (20) for detecting the temperature of the liquid medicine after heating; the one-way valve (22) is installed on the outer side of the straight-connected pipe (20) for preventing the liquid medicine from flowing back; the infusion pump (23) is fixedly connected to one side of the straight-connected pipe (20) for conveying the liquid medicine; and the output power of the infusion pump (23) is less than the output power of the small air pump (15).

5. A high-precision electronic infusion pump according to claim 4, characterized in that: The liquid medicine filtering assembly (9) comprises a sealing box (24), a small motor (25), a drive shaft (26), a guide shaft (27), a socket disc (28), a circular frame (29) and an impurity filter plate (30), wherein the small motor (25) is mounted inside the sealing box (24), the bottom of the drive shaft (26) is fixedly connected to the motor shaft of the small motor (25) via a coupling, the guide shaft (27) passes through one side of the sealing box (24) and fits tightly with the middle of the socket disc (28), the circular frame (29) is mounted on the outside of the socket disc (28), and the impurity filter plate (30) is plugged into the inside of the circular frame (29) and is used to filter the liquid medicine.

6. A high-precision electronic infusion pump according to claim 5, characterized in that: The outer side of the impurity filter plate (30) is also provided with a dust cover (31).

7. A high-precision electronic infusion pump according to claim 6, characterized in that: A liquid outlet pipe (32) and a second one-way valve (33) are also installed on the outside of the discharge end of the dust cover (31); the liquid outlet pipe (32) passes through the interior of the driver housing (2) and fits tightly with the inner surface of the driver housing (2); the second one-way valve (33) is installed on the outside of the liquid outlet pipe (32) to prevent the filtered liquid from flowing back.

8. A high-precision electronic infusion pump according to claim 7, characterized in that: Mass flow meters (34) of the same model are arranged on the outsides of the delivery pipeline (6), the direct connection pipe (20) and the liquid outlet pipeline (32).

9. A high-precision electronic infusion pump according to claim 1, characterized in that: The connection between the driver housing (2) and the liquid injection housing (3) is also provided with an insert block (35) and a limit groove (36) that are adapted to each other.

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