CN117752890A - Self-checking infusion pump - Google Patents
Self-checking infusion pump Download PDFInfo
- Publication number
- CN117752890A CN117752890A CN202310900595.5A CN202310900595A CN117752890A CN 117752890 A CN117752890 A CN 117752890A CN 202310900595 A CN202310900595 A CN 202310900595A CN 117752890 A CN117752890 A CN 117752890A
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- Prior art keywords
- self
- infusion pump
- checking
- electromagnetic
- way valve
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Links
- 238000001802 infusion Methods 0.000 title claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 60
- 238000005086 pumping Methods 0.000 claims abstract description 42
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 239000003814 drug Substances 0.000 claims abstract description 27
- 238000012360 testing method Methods 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims 2
- 238000002604 ultrasonography Methods 0.000 claims 1
- 230000001502 supplementing effect Effects 0.000 description 5
- 238000010992 reflux Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a self-checking infusion pump, which comprises a pump body, wherein a first pumping assembly for pumping liquid medicine, a detection assembly for detecting whether the liquid medicine pumped by the pump contains bubbles, and a treatment center are arranged in the pump body; the processing center is electrically connected with the signal receiver, and the signal receiver is electrically connected with the first electromagnetic three-way valve. When bubbles exist, the first electromagnetic three-way valve is communicated with a loop of the liquid outlet pipeline and the return pipeline. When no bubble exists, the first electromagnetic three-way valve is communicated with the loop of the liquid outlet pipeline and the infusion pipeline. Avoiding the air bubble from being discharged into the human body and increasing the safety performance of the infusion pump.
Description
Technical Field
The invention relates to the technical field of infusion pumps, in particular to a self-checking infusion pump.
Background
The infusion pump is an instrument which can accurately control the number of infusion drops or the infusion flow rate, ensure the uniform speed of the medicine, and ensure the accurate and safe medicine quantity to enter the patient body for playing a role. Meanwhile, the infusion pump can also improve the efficiency and flexibility of clinical administration operation and reduce nursing workload. Infusion pumps are typically mechanical or electronic control devices that control the infusion rate by acting on an infusion catheter.
The infusion pump is internally provided with a large number of parts, and bubbles are likely to be generated due to various reasons in the infusion process, the bubbles enter a human body along with the liquid medicine, and generally, the air entering the human body is more than 2ml, so that the human body is hurt.
Disclosure of Invention
The invention aims to provide a self-checking infusion pump so as to solve the problem that a large amount of air enters a human body.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the self-checking infusion pump comprises a pump body, wherein a first pumping assembly for pumping liquid medicine, a detection assembly for detecting whether the liquid medicine sent by the pump contains bubbles or not and a treatment center are arranged in the pump body, the first pumping assembly is communicated with a liquid outlet pipeline, the detection assembly comprises a detection box, a laser transmitter and a signal receiver which are arranged in the detection box, a first electromagnetic three-way valve which is communicated with the liquid outlet pipeline is further arranged in the detection box, and a backflow pipeline and an infusion pipeline are communicated with the first electromagnetic three-way valve;
the processing center is electrically connected with the signal receiver, and the signal receiver is electrically connected with the first electromagnetic three-way valve.
Compared with the prior art, the invention has the beneficial effects that: the first pumping assembly pumps liquid medicine stably at a preset speed, the detection assembly detects bubbles of liquid in the liquid outlet pipeline through the laser emitter and the signal receiver, and when bubbles exist in the liquid outlet pipeline, the processing center controls the first electromagnetic three-way valve to be communicated with a loop of the liquid outlet pipeline and the return pipeline. When no bubble exists in the liquid outlet pipeline, the processing center controls the first electromagnetic three-way valve to be communicated with a loop of the liquid outlet pipeline and the infusion pipeline. Avoiding the air bubble from being discharged into the human body and increasing the safety performance of the infusion pump. Preferably, the processing center is a cpu or plc control center.
Preferably, the reflux pipeline is communicated with a treatment box, the treatment box is accommodated in the pump body, and an ultrasonic generator is arranged in the treatment box.
Preferably, the treatment box is further provided with a discharge pipeline, two contacts are arranged in the treatment box, an insulating coating is arranged on the outer wall surface of the ultrasonic generator and the inner wall surface of the treatment box, one of the two contacts is connected with a power supply, the power supply is electrically connected with an ammeter, and the ammeter is electrically connected with the other contact.
Preferably, the discharge pipeline is communicated with a second pumping assembly, a second electromagnetic three-way valve is arranged between the first pumping assembly and the liquid outlet pipeline, and the second electromagnetic three-way valve is communicated with the second pumping assembly.
Preferably, the first pumping assembly and/or the second pumping assembly comprises a servo motor, a worm, a screw rod, a pumping cylinder and a piston rod, wherein the worm, the screw rod, the pumping cylinder and the piston rod are connected with the output end of the servo motor;
the screw rod is meshed with the worm, the piston rod is arranged in the pumping cylinder, and the outer peripheral surface of the end part of the piston rod, which is far away from the screw rod, is attached to the inner wall surface of the pumping cylinder.
Preferably, the treatment tank is provided with a liquid level sensor, which is electrically connected to the treatment center.
Preferably, the liquid outlet pipe is provided with a substantially square detection section, the position of which corresponds to the positions of the laser transmitter and the signal receiver.
Preferably, the laser transmitter emits modulated light.
Preferably, the pump body is provided with a mounting seat, a threaded hole is formed in the mounting seat, and the mounting seat is connected with an external member through a bolt.
Preferably, the pump body is provided with a fluid supplementing pipeline.
Drawings
FIG. 1 is a schematic perspective view of a self-test infusion pump;
FIG. 2 is a schematic diagram of the internal structure of a self-test infusion pump;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a partial enlarged view at B in FIG. 2;
fig. 5 is a schematic perspective view of a part of the infusion tube.
In the figure: 1. a pump body; 2. a mounting base; 3. a fluid supplementing pipeline; 4. a liquid outlet pipe; 41. a detection section; 5. a return line; 6. a detection box; 7. an infusion tube; 8. a servo motor; 9. a worm; 10. a screw rod; 11. a piston rod; 12. a pumping cylinder; 13. a second electromagnetic three-way valve; 14. a first electromagnetic three-way valve; 15. a signal receiver; 16. a laser emitter; 17. a treatment box; 18. a contact; 19. an ultrasonic generator; 20. and a discharge pipe.
Detailed Description
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
In the present specification, the terms "upper, lower, inner, outer" and the like are established based on the positional relationship shown in the drawings, and the corresponding positional relationship may be changed according to the drawings, so that the terms are not to be construed as absolute limitation of the protection scope; moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
Example 1
As shown in fig. 1-4, the embodiment provides a self-checking infusion pump, which comprises a pump body 1, wherein a first pumping assembly for pumping liquid medicine, a detection assembly for detecting whether the liquid medicine pumped by the pump contains bubbles, and a processing center are arranged in the pump body 1, the first pumping assembly is communicated with a liquid outlet pipeline 4, the detection assembly comprises a detection box 6, a laser transmitter 16 and a signal receiver 15 which are arranged in the detection box 6, a first electromagnetic three-way valve 14 which is communicated with the liquid outlet pipeline 4 is also arranged in the detection box 6, and the first electromagnetic three-way valve 14 is communicated with a reflux pipeline 5 and an infusion pipeline 7;
the processing center is electrically connected with a signal receiver 15, and the signal receiver 15 is electrically connected with the first electromagnetic three-way valve 14.
Specifically, the first pumping assembly pumps the liquid medicine stably at a preset speed, the detection assembly detects bubbles of the liquid in the liquid outlet pipeline 4 through the laser emitter 16 and the signal receiver 15, and when bubbles exist in the liquid outlet pipeline 4, the processing center controls the first electromagnetic three-way valve 14 to be communicated with the loops of the liquid outlet pipeline 4 and the backflow pipeline 5. When no bubble exists in the liquid outlet pipeline 4, the processing center controls the first electromagnetic three-way valve 14 to be communicated with the loop of the liquid outlet pipeline 4 and the infusion pipeline 7. Avoiding the air bubble from being discharged into the human body and increasing the safety performance of the infusion pump. Preferably, the processing center is a cpu or plc control center.
In detail, the laser emitter 16 emits laser, the signal receiver 15 is used for receiving the laser emitted by the processing center, the laser receiving area of the signal receiver 15 is slightly larger than the laser emitting area of the laser emitter 16, the liquid outlet pipeline 4 is located between the laser emitter 16 and the signal receiver 15, when bubbles exist in the liquid outlet pipeline 4, the laser emitted by the laser emitter 16 is scattered, and then the signal received by the signal receiver 15 is reduced. The signal receiver 15 transmits the received signal to the processing center, and the processing center judges whether air bubbles exist in the liquid outlet pipe 4, and controls the working state of the first electromagnetic three-way valve 14 according to the air bubble condition.
Further, the reflux pipeline 5 is communicated with a treatment tank 17, the treatment tank 17 is accommodated in the pump body 1, an ultrasonic generator 19 is arranged in the treatment tank 17, the reflux pipeline 5 discharges the liquid medicine with bubbles into the treatment tank 17, the ultrasonic generator 19 emits ultrasonic waves, and energy is transferred into the liquid medicine with the bubbles to shake the bubbles, so that the effect of removing the bubbles in the liquid medicine is achieved.
Further, the treatment tank 17 is further provided with a discharge pipe 20, two contacts 18 are arranged in the treatment tank 17, insulating coatings are arranged on the outer wall surface of the ultrasonic generator 19 and the inner wall surface of the treatment tank 17, one of the two contacts 18 is connected with a power supply, the power supply is electrically connected with an ammeter, the ammeter is electrically connected with the other contact 18, the treatment tank 17 is provided with a liquid level sensor, and the liquid level sensor is electrically connected with a treatment center. The two contacts 18 are connected in series with a power supply and an ammeter, the power supply is a constant voltage power supply, the resistance value of the liquid medicine can be judged through the current change displayed by the ammeter, if bubbles exist in the liquid medicine, the whole resistance of the liquid medicine can be increased, whether the liquid medicine is completely removed can be judged through the resistance value of the liquid medicine, and the effect of removing the bubbles is achieved when the liquid medicine is electrified. The ammeter is electrically connected with the processing center so as to transmit the bubble content signal in the liquid medicine to the processing center.
Further, the discharge pipeline 20 is communicated with a second pumping assembly, a second electromagnetic three-way valve 13 is arranged between the first pumping assembly and the liquid outlet pipeline 4, and the second electromagnetic three-way valve 13 is communicated with the second pumping assembly. After the bubbles in the liquid medicine are completely removed, the first pumping assembly can stop working, the second pumping assembly starts working, and the returned liquid medicine is pumped out again.
Further, the first pumping assembly and/or the second pumping assembly comprises a servo motor 8, a worm 9 connected with the output end of the servo motor 8, a screw rod 10, a pumping cylinder 12 and a piston rod 11;
the screw rod 10 is engaged with the worm 9, the piston rod 11 is provided inside the pumping cylinder 12, and the outer peripheral surface of the end of the piston rod 11 away from the screw rod 10 is fitted to the inner wall surface of the pumping cylinder 12. The servo motor 8 drives the output end to rotate, so that the worm 9 is driven to rotate, the worm 9 rotates, the screw rod 10 is driven to feed in a spiral manner, the piston rod 11 is driven to move transversely, and the liquid medicine in the pumping cylinder 12 is pumped out. Preferably, the servo motor 8 is electrically connected to a processing center, through which the flow rate can be controlled.
The laser emitter 16 emits modulated light, and the bubble is detected using the modulated light, thereby avoiding the influence of natural light on the detection result.
The pump body 1 is provided with mount pad 2, is provided with the screw hole on the mount pad 2, and mount pad 2 passes through the bolt to be connected with external member, and the pump body 1 passes through mount pad 2 to be installed on external member, strengthens the stability of the pump body.
The pump body 1 is provided with a liquid supplementing pipeline 3, and the liquid supplementing pipeline 3 is used for supplementing the pump body 1 with liquid medicine.
It can be understood that the infusion pump is also mature in the prior art, and the invention only provides a technical scheme aiming at the problems in the background art, and the technical scheme omits parts such as one-way valves and the like, and the one-way valves are arranged in each infusion pipeline to avoid backflow.
Example two
In this embodiment, the same reference numerals are given to the same parts as those of the first embodiment, and the same description is omitted.
As shown in fig. 5, compared with the first embodiment, the liquid outlet pipe 4 provided in this embodiment has the following different structural design: the liquid outlet pipe 4 is provided with a substantially square detection section 41, the position of the detection section 41 corresponding to the positions of the laser transmitter 16 and the signal receiver 15.
In order to enhance the detection effect, the liquid outlet pipe 4 is provided with a detection section 41 to avoid the influence of the cylindrical pipe on the detection result.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
Claims (10)
1. The self-checking infusion pump comprises a pump body (1), and is characterized in that a first pumping assembly for pumping liquid medicine and a detection assembly and a processing center for detecting whether bubbles are contained in the liquid medicine pumped out or not are arranged in the pump body (1), the first pumping assembly is communicated with a liquid outlet pipeline (4), the detection assembly comprises a detection box (6), a laser emitter (16) and a signal receiver (15) which are arranged in the detection box (6), a first electromagnetic three-way valve (14) communicated with the liquid outlet pipeline (4) is further arranged in the detection box (6), and the first electromagnetic three-way valve (14) is communicated with a backflow pipeline (5) and an infusion pipeline (7);
the processing center is electrically connected with the signal receiver (15), and the signal receiver (15) is electrically connected with the first electromagnetic three-way valve (14).
2. Self-checking infusion pump according to claim 1, characterized in that said return conduit (5) is connected with a treatment tank (17), said treatment tank (17) being housed inside said pump body (1), the inside of said treatment tank (17) being provided with an ultrasound generator (19).
3. The self-checking infusion pump according to claim 2, characterized in that the treatment tank (17) is further provided with a discharge pipe (20), two contacts (18) are arranged in the treatment tank (17), the outer wall surface of the ultrasonic generator (19) and the inner wall surface of the treatment tank (17) are both provided with insulating coatings, one of the two contacts (18) is connected with a power supply, the power supply is electrically connected with an ammeter, and the ammeter is electrically connected with the other contact (18).
4. A self-checking infusion pump according to claim 3, characterized in that the discharge conduit (20) is in communication with a second pumping assembly, a second electromagnetic three-way valve (13) is arranged between the first pumping assembly and the outlet conduit (4), the second electromagnetic three-way valve (13) being in communication with the second pumping assembly.
5. The self-checking infusion pump according to claim 1, characterized in that the first pumping assembly and/or the second pumping assembly comprises a servo motor (8), a worm (9) connected with the output end of the servo motor (8), a screw rod (10), a pumping cylinder (12) and a piston rod (11);
the screw rod (10) is meshed with the worm (9), the piston rod (11) is arranged in the pumping cylinder (12), and the outer circumferential surface of the end part of the piston rod (11), which is far away from the screw rod (10), is attached to the inner wall surface of the pumping cylinder (12).
6. A self-checking infusion pump according to claim 3, characterized in that the treatment tank (17) is provided with a level sensor, which is electrically connected to the treatment centre.
7. Self-test infusion pump according to claim 1, characterized in that the outlet conduit (4) is provided with a substantially square detection section (41), the position of the detection section (41) corresponding to the positions of the laser transmitter (16) and the signal receiver (15).
8. The self-test infusion pump according to claim 1, wherein the laser transmitter (16) emits modulated light.
9. The self-checking infusion pump according to claim 1, characterized in that the pump body (1) is provided with a mounting seat (2), a threaded hole is arranged on the mounting seat (2), and the mounting seat (2) is connected with an external member through a bolt.
10. Self-checking infusion pump according to claim 1, characterized in that the pump body (1) is provided with a fluid-supplementing duct (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310900595.5A CN117752890A (en) | 2023-07-21 | 2023-07-21 | Self-checking infusion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310900595.5A CN117752890A (en) | 2023-07-21 | 2023-07-21 | Self-checking infusion pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117752890A true CN117752890A (en) | 2024-03-26 |
Family
ID=90316929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310900595.5A Pending CN117752890A (en) | 2023-07-21 | 2023-07-21 | Self-checking infusion pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117752890A (en) |
-
2023
- 2023-07-21 CN CN202310900595.5A patent/CN117752890A/en active Pending
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