CN210904402U - Syringe pump calibrating installation - Google Patents
Syringe pump calibrating installation Download PDFInfo
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- CN210904402U CN210904402U CN201921448783.4U CN201921448783U CN210904402U CN 210904402 U CN210904402 U CN 210904402U CN 201921448783 U CN201921448783 U CN 201921448783U CN 210904402 U CN210904402 U CN 210904402U
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- pipe section
- pipeline
- syringe pump
- liquid
- pressure
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Abstract
The utility model discloses a syringe pump calibrating installation for measuring the blocking pressure and the flow rate of syringe pump, its characterized in that, including first pipeline section, second pipeline section and the third pipeline section of establishing ties each other, be provided with the jam valve between first pipeline section and the second pipeline section, the second pipeline section is connected to a stock solution container through the third pipeline section; the first pipe section is provided with a liquid inlet, a pressure sensor for measuring the pressure of test liquid in the pipeline is arranged on the first pipe section, the second pipe section is a light transmission pipeline, an optical sensor is arranged on the outer side of the second pipe section, and the liquid storage container is provided with a liquid outlet; the output end of the injection pump is connected to the second pipe section, and the input end of the injection pump is connected to the liquid storage container through a gas pipeline. The utility model provides a pair of injection pump calibrating installation can carry out measuring to the jam pressure of injection pump through the pressure sensor who sets up on the pipeline when, realizes measuring the velocity of flow that the injection pump carried the liquid medicine.
Description
Technical Field
The utility model relates to a medical instrument calibrating installation, especially a syringe pump calibrating installation.
Background
The medical infusion/injection pump can accurately control the flow speed and the flow of the delivered liquid medicine, can alarm abnormal conditions in the infusion process, and can automatically block an infusion/injection pipeline in time. Therefore, the working intensity of medical staff can be reduced, the safety, the accuracy and the working efficiency can be improved, and the physical and psychological damage of patients caused by medical accidents is also reduced. This makes the intelligently controlled syringe/infusion pump have wide application in various departments of the hospital, especially in the treatment of infusion in ICU and CCU wards.
The wide application of medical infusion/injection pumps brings great convenience to medical workers and patients, but the premise is that the infusion/injection pump has high reliability. However, if the equipment is out of order, the precision is poor or the operation of the user is wrong, great potential safety hazards are brought to the patient. The syringe pump calibrator can accurately measure various performance parameters of the infusion pump/syringe pump. The principle of the method for measuring the blocking pressure of the injection pump by using the mainstream injection pump calibrator in the market is basically consistent. The pressure in the injection pipeline is measured in real time by using a built-in pressure sensor, and detected data are fed back to the data processing module. However, the existing syringe pump calibrator can only measure the blocking pressure and cannot well measure the flow rate of the syringe pump.
It can be seen that the above-mentioned problems with the prior art are in need of improvement.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned problem that prior art exists, the utility model aims to provide a can measure the jam pressure of syringe pump, can carry out measuring syringe pump calibrating installation to the velocity of flow of syringe pump during operation pipeline again.
In order to achieve the above object, an embodiment of the present invention provides a calibration device for a syringe pump, which is used for measuring the blocking pressure and the flow rate of the syringe pump, and includes a first pipe section, a second pipe section and a third pipe section, which are connected in series with each other, wherein a blocking valve is disposed between the first pipe section and the second pipe section, and the second pipe section is connected to a liquid storage container through the third pipe section; the first pipe section is provided with a liquid inlet, a pressure sensor for measuring the pressure of test liquid in the pipeline is arranged on the first pipe section, the second pipe section is a light transmission pipeline, an optical sensor is arranged on the outer side of the second pipe section, and the liquid storage container is provided with a liquid outlet; the output end of the injection pump is connected to the second pipe section, and the input end of the injection pump is connected to the liquid storage container through a gas pipeline.
Preferably, a plurality of the optical sensors are arranged in parallel.
Preferably, an injection pump control valve is provided in the gas line.
Preferably, the second tube section is made of glass.
Preferably, the test liquid is water.
Compared with the prior art, the utility model provides a pair of syringe pump calibrating installation can carry out measuring through the pressure sensor that sets up on the pipeline to the jam pressure of syringe pump, can measure the velocity of motion of the bubble of the transparent second pipeline section of flowing through that is generated by the syringe pump through optical sensor, and then realizes measuring the velocity of flow that the syringe pump carried the liquid medicine to this injection precision of aassessment syringe pump.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.
Drawings
Fig. 1 is a schematic structural diagram of the syringe pump calibrating apparatus of the present invention.
Description of the main reference numerals:
1-liquid inlet, 2-pressure sensor, 3-blocking valve, 4-injection pump, 5-injection pump control valve, 6-gas pipeline, 7-bubble, 8-second pipe section, 9-optical sensor, 10-liquid storage container and 11-liquid outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.
As shown in fig. 1, an embodiment of the present invention provides a syringe pump calibration apparatus for measuring the occlusion pressure and flow rate of a syringe pump 4, comprising a first pipe section (not labeled in fig. 1), a second pipe section 8 and a third pipe section (not labeled in fig. 1) connected in series, wherein a blocking valve 3 is disposed between the first pipe section and the second pipe section, and the second pipe section 8 is connected to a liquid storage container 10 through the third pipe section; the reservoir 10 is configured to recover a test liquid, which may be, in general, water or a solution that is colored with a coloring agent to facilitate visualization. The first pipe section is provided with a liquid inlet, a pressure sensor 2 for measuring the pressure of test liquid in the pipeline is arranged on the first pipe section, the second pipe section is a light-transmitting pipeline (such as a glass pipeline), an optical sensor 9 is arranged on the outer side of the second pipe section, and a liquid outlet is arranged on the liquid storage container 10; the output end of the syringe pump 4 is connected to the second pipe segment 8, and the input end thereof is connected to the liquid storage container 10 through a gas pipeline 6. In some embodiments, as shown in fig. 1, a syringe pump control valve 5 may be added to the gas line 6. In addition, for the purpose of accurate measurement, a plurality of optical sensors 9 may be provided in parallel at equal intervals outside the second pipe 8.
In the case of a calibration measurement, initially, the stopper valve is opened, the syringe pump control valve 5 is closed, and the second pipe section 8 discharges a water column into the water reservoir through the third pipe section by a length equal to the third pipe section. The water column creates an airway pressure in the gas line 6 between the water reservoir 10 and the syringe pump control valve 5, which can be used to create a visible bubble 7. At this time, the control block valve 3 is closed, the injection pump control valve 5 is opened, and the injection pump 4 generates the air bubbles 7 under the action of airway pressure. After the air bubble 7 is generated, the blocking valve 3 is operated again to open, and the injection pump control valve 5 is closed, at which time the air bubble 7 moves in the direction of the water storage container 10 under the push of the test liquid in the second pipeline 8. Since the refractive index of the light of the bubble 7 is different from that of the test liquid, a constant velocity of the bubble passing through the optical sensor 9 will generate a varying signal which will be used to determine the flow rate of the liquid. The purpose of measuring and verifying the injection flow rate of the injection pump is achieved. To the method of optical sensor 9 signal processing itself, do not belong to the utility model discloses the object of protection, and in the sensor application of each trade, have ripe scheme the utility model discloses do not describe tiredly. However, in order to improve the accuracy of the measurement of the flow rate, in some embodiments, the optical sensors 9 may be arranged in plurality and in parallel and equidistantly.
Compared with the prior art, the utility model provides a pair of syringe pump calibrating installation can carry out measuring through the pressure sensor that sets up on the pipeline to the jam pressure of syringe pump, can measure the velocity of motion of the bubble of the transparent second pipeline section of flowing through that is generated by the syringe pump through optical sensor, and then realizes measuring the velocity of flow that the syringe pump carried the liquid medicine to this injection precision of aassessment syringe pump.
Of course, the foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations are also considered to be the protection scope of the present invention.
Claims (5)
1. A calibration device for a syringe pump is used for measuring the blocking pressure and flow rate of the syringe pump and is characterized by comprising a first pipe section, a second pipe section and a third pipe section which are connected in series, wherein a blocking valve is arranged between the first pipe section and the second pipe section, and the second pipe section is connected to a liquid storage container through the third pipe section; the first pipe section is provided with a liquid inlet, a pressure sensor for measuring the pressure of test liquid in the pipeline is arranged on the first pipe section, the second pipe section is a light transmission pipeline, an optical sensor is arranged on the outer side of the second pipe section, and the liquid storage container is provided with a liquid outlet; the output end of the injection pump is connected to the second pipe section, and the input end of the injection pump is connected to the liquid storage container through a gas pipeline.
2. The syringe pump assay device of claim 1, wherein the optical sensor is disposed in plurality in parallel.
3. The syringe pump assay device of claim 1, wherein a syringe pump control valve is disposed on the gas line.
4. The syringe pump assay device of claim 1, wherein the second tube segment is made of glass.
5. The syringe pump assay device of claim 1, wherein the test liquid is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921448783.4U CN210904402U (en) | 2019-09-02 | 2019-09-02 | Syringe pump calibrating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921448783.4U CN210904402U (en) | 2019-09-02 | 2019-09-02 | Syringe pump calibrating installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210904402U true CN210904402U (en) | 2020-07-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921448783.4U Active CN210904402U (en) | 2019-09-02 | 2019-09-02 | Syringe pump calibrating installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210904402U (en) |
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2019
- 2019-09-02 CN CN201921448783.4U patent/CN210904402U/en active Active
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