CN110541814A - Medical transfer pump detection device - Google Patents

Medical transfer pump detection device Download PDF

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Publication number
CN110541814A
CN110541814A CN201910889737.6A CN201910889737A CN110541814A CN 110541814 A CN110541814 A CN 110541814A CN 201910889737 A CN201910889737 A CN 201910889737A CN 110541814 A CN110541814 A CN 110541814A
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CN
China
Prior art keywords
circuit
liquid flow
unit
liquid
flow detection
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Pending
Application number
CN201910889737.6A
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Chinese (zh)
Inventor
姚绍卫
夏颖
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Changzhou High-Tech Research Institute Of Nanjing University
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Changzhou High-Tech Research Institute Of Nanjing University
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Priority to CN201910889737.6A priority Critical patent/CN110541814A/en
Publication of CN110541814A publication Critical patent/CN110541814A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00Testing machines, pumps, or pumping installations
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The utility model provides a medical transfer pump detection device, structurally has four components: the bubble generating unit, the liquid flow detecting unit, the liquid pressure detecting unit and the control unit. Wherein, the bubble generating unit and the liquid flow detecting unit are connected through a hose; the liquid flow detection unit and the liquid pressure detection unit are connected through a tee joint and an electromagnetic valve; the control unit is used for controlling the whole system to work and is electrically connected with the bubble generation unit, the liquid flow detection unit and the liquid pressure detection unit. The invention provides a medical infusion pump detection device, which is used for detecting flow and pressure, calculating and evaluating detection capability indexes such as flow, cumulant, blocking pressure and the like of an infusion pump according to the calibration standard requirements of a JJF 1259-.

Description

Medical transfer pump detection device
Technical Field
The invention relates to the field of quality detection, in particular to a medical infusion pump detection device.
Background
Medical infusion pumps (hereinafter referred to as infusion pumps) are usually mechanical or electronic control devices which act on an infusion line for the purpose of controlling the infusion rate. Is often used in situations where strict control of the amount and dosage of the infusion is required, such as when boosting drugs, antiarrhythmic drugs, intravenous infusion or intravenous anesthesia for infants are used.
Intravenous infusion is a common mode of administration in clinical therapy. The intravenous infusion speed is different according to the nature of the medicine and the constitution of the patients. The expected treatment effect is difficult to achieve even if the infusion is too fast or too slow, and the nursing safety is affected.
The infusion pump is an instrument which can accurately control the number of infusion drops or the flow rate of infusion, ensure that the medicine can be uniformly mixed, ensure the medicine amount to be accurate and safely enter the body of a patient to play a role, is an intelligent infusion device, has the infusion speed not influenced by the back pressure of the human body and an operator, is accurate and reliable in infusion, contributes to reducing the working intensity of clinical care, and improves the accuracy, the safety and the care quality of the infusion.
The infusion pump has various product models and different performances. It can be classified into peristaltic control type infusion pump, constant volume type infusion pump and syringe microinjection type infusion pump according to its working characteristics.
The working pressure of the infusion pump does not exceed the specified highest pressure, otherwise, the high-pressure sealing ring is deformed to generate liquid leakage; the infusion pump has no flowing phase and no pressure indication, and the reason is that a large amount of gas exists in the infusion pump, and a sealing ring is worn and needs to be replaced; the pressure of the infusion pump is unstable because of bubbles which need to be removed or foreign matters exist in the one-way valve; the reason for the over-high pressure is that the pipeline is blocked and needs to be cleaned or cleaned; the reason for the pressure drop may be a leak in the line.
In summary, as an important index for evaluating the quality of the infusion pump, flow and pressure detection occupy the most important link for quality control and detection of the infusion pump. In the test of detecting the medical infusion pump, a device which can detect the flow of the medical infusion pump and can also detect the pressure of the medical infusion pump is needed.
disclosure of Invention
The invention aims to provide a device which meets the requirements of the calibration specifications of a JJF 1259-.
The utility model provides a medical transfer pump detection device which characterized in that: there are four structural components: the bubble generating unit, the liquid flow detecting unit, the liquid pressure detecting unit and the control unit; wherein, the bubble generating unit comprises a bubble generating circuit and is connected with the liquid flow detecting unit through a hose; the liquid flow detection unit comprises a liquid flow detection circuit and is connected with the liquid pressure detection unit through a tee joint and an electromagnetic valve; the liquid pressure detection unit comprises a liquid pressure detection circuit; the control unit comprises a lithium battery power supply conversion circuit, a wireless WIFI data transmission circuit and a microprocessor control circuit, is used for controlling the whole system to work, and is electrically connected with the bubble generation unit, the liquid flow detection unit and the liquid pressure detection unit. The microprocessor control circuit is electrically connected with the bubble generation circuit, the liquid flow detection circuit, the liquid pressure detection circuit, the lithium battery power supply conversion circuit and the wireless WIFI data transmission circuit; the microprocessor control circuit mainly comprises a processor with model number MSP430F5438IPZ for controlling the whole system to work; the bubble generating circuit is electrically connected with the output end of the microprocessor control circuit; the liquid flow detection circuit mainly comprises eight miniature photoelectric sensors with the model number of EE-SX199, liquid output by the infusion pump to be detected flows into a glass tube at the detection end, the generated illumination intensity is different, and the liquid output by the infusion pump to be detected is converted into voltage signals with different numerical values and is transmitted to the operational amplifier 0PA333 for signal amplification and then is electrically connected with the input end of the microprocessor control circuit; the liquid pressure detection circuit mainly comprises a voltage liquid level transmitter with the model number of PCM300D, which is used for signal amplification through an operational amplifier 0PA333 and then is electrically connected with the input end of a microprocessor control circuit; the lithium battery power supply conversion circuit mainly comprises a lithium battery charging circuit consisting of a lithium battery charger TP4056, and a power supply conversion circuit consisting of a power supply conversion chip SP6203 supplies power to the bubble generation circuit, the liquid flow detection circuit, the liquid pressure detection circuit, the wireless WIFI data transmission circuit and the microprocessor control circuit; the wireless WIFI data transmission circuit mainly comprises a WIFI module WIFI232 and a communication end of the microprocessor control circuit is electrically connected, and wireless uploading of detection data is completed.
A liquid flow detection unit of a medical infusion pump detection device structurally comprises three components: liquid flow pick-up plate, ya keli support and glass pipe. The integrated liquid flow detection circuit of the liquid flow detection plate mainly comprises eight types of EE-SX199 miniature photoelectric sensors which are fixedly connected with an acrylic bracket through screws; the acrylic bracket is made of a completely black opaque acrylic material; the diameter of the glass tube is 3mm, the glass tube is provided with two input ports, the glass tube is directly placed in the center of the acrylic bracket and is fixed by glue; the two input ports are respectively as follows: a liquid flow input and a bubble input.
The bubble generation unit of the medical infusion pump detection device structurally comprises four components: a driver, a peristaltic pump, and a hose. The driver is MD02322 in model number and is electrically connected with the peristaltic pump, and the peristaltic pump is driven to rotate in a pulse mode; the peristaltic pump consists of a stepping motor and a pump head, wherein the model of the stepping motor is KFS-ST0B04PDI, and the stepping motor is provided with a rotating shaft with a Y-shaped section and is directly inserted into the pump head; and a hose at one end of the peristaltic pump head is suspended and used for collecting air, and a hose at the other end is directly connected to a bubble input port of the liquid flow detection unit to complete the input of bubbles.
Compared with the prior art, the invention has the advantages that: the medical infusion pump detection device is provided for completing the detection of flow and pressure, and can calculate and evaluate detection capability indexes such as flow, cumulant, blocking pressure and the like of an infusion pump according to the calibration standard requirements of a JJF 1259-.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
FIG. 1 is a block diagram of the components of the present invention;
FIG. 2 is a schematic structural diagram of a liquid flow detecting unit according to the present invention;
FIG. 3 is a schematic structural view of the present invention;
In fig. 1: 1. a bubble generation unit; 2. a liquid flow rate detection unit; 3. a liquid pressure detection unit; 4. a control unit; 5. a bubble generating circuit; 6. a liquid flow detection circuit; 7. a liquid pressure detection circuit; 8. a lithium battery power supply conversion circuit; 9. a wireless WIFI data transmission circuit; 10. a microprocessor control circuit.
in fig. 2: 11. a liquid flow detection plate; 12. an acrylic stent; 13. a glass tube; 14. a liquid flow input port; 15. a bubble input port; 16. a miniature photoelectric sensor.
In fig. 3: 17. an electromagnetic valve; 18. a driver; 19. a peristaltic pump; 20. and a tee joint.
Detailed Description
The present invention has been described with respect to the embodiments of the present invention only, and is not limited in any way to the scope of the present invention.
As shown in fig. 1, a medical infusion pump detection device is characterized in that: there are four structural components: the device comprises a bubble generation unit (1), a liquid flow detection unit (2), a liquid pressure detection unit (3) and a control unit (4); wherein, the bubble generation unit (1) comprises a bubble generation circuit (5) and the liquid flow detection unit (2) which are connected through a hose; the liquid flow detection unit (2) comprises a liquid flow detection circuit (6) and is connected with the liquid pressure detection unit (3) through a tee joint and an electromagnetic valve; the liquid pressure detection unit (3) comprises a liquid pressure detection circuit (7); the control unit (4) contain lithium battery power supply conversion circuit (8), wireless WIFI data transmission circuit (9) and microprocessor control circuit (10) for control whole system work, and have electrical connection with bubble generation unit (1), liquid flow detection unit (2), liquid pressure detection unit (3). There are six components in the circuit: the device comprises a bubble generation circuit (5), a liquid flow detection circuit (6), a liquid pressure detection circuit (7), a lithium battery power supply conversion circuit (8), a wireless WIFI data transmission circuit (9) and a microprocessor control circuit (10). The microprocessor control circuit (10) is electrically connected with the bubble generation circuit (5), the liquid flow detection circuit (6), the liquid pressure detection circuit (7), the lithium battery power supply conversion circuit (8) and the wireless WIFI data transmission circuit (9); the microprocessor control circuit (10) mainly comprises a processor with signals of MSP430F5438IPZ for controlling the whole system to work; the bubble generating circuit (5) is electrically connected with the output end of the microprocessor control circuit (10); the liquid flow detection circuit (6) mainly comprises eight miniature photoelectric sensors (16) with the model number of EE-SX199, liquid output by the infusion pump to be detected flows into a detection end glass tube, the generated illumination intensity is different, and the liquid output by the infusion pump to be detected is converted into voltage signals with different values and transmitted to the operational amplifier 0PA333 for signal amplification and then is electrically connected with the input end of the microprocessor control circuit (10); the liquid pressure detection circuit (7) mainly comprises a voltage liquid level transmitter with the model number of PCM300D, which is used for signal amplification through an operational amplifier OPA333 and then is electrically connected with the input end of the microprocessor control circuit (10); the lithium battery power supply conversion circuit (8) mainly comprises a lithium battery charging circuit consisting of a lithium battery charger TP4056, and a power supply conversion circuit consisting of a power supply conversion chip SP6203 supplies power to the bubble generation circuit (5), the liquid flow detection circuit (6), the liquid pressure detection circuit (7), the wireless WIFI data transmission circuit (9) and the microprocessor control circuit (10); the wireless WIFI data transmission circuit (9) mainly comprises a WIFI module WIFI232 and a communication end of the microprocessor control circuit (10) which are electrically connected, and wireless uploading of detection data is completed.
As shown in fig. 2, the liquid flow rate detection unit (2) of the medical infusion pump detection device structurally has three components: the device comprises a liquid flow detection plate (11), an acrylic bracket (12) and a glass tube (13). The liquid flow detection plate (11) is integrated with a liquid flow detection circuit (6) and mainly comprises eight miniature photoelectric sensors (16) with the models of EE-SX 199; the miniature photoelectric sensor (16) is a U-shaped groove sensor, the two ends of the groove are respectively the transmitting end and the receiving end of the sensor, the detection of the liquid flow is completed by detecting the illumination intensity difference of the pillow-shaped liquid between the U-shaped grooves, and the miniature photoelectric sensor is fixedly connected with the acrylic bracket (12) through screws; the acrylic bracket (12) is made of a completely black opaque acrylic material, and is provided with a groove with the transverse depth of 3mm and eight square grooves in the longitudinal direction; the diameter of the glass tube is 3mm, the glass tube is provided with two input ports, the glass tube is directly placed in the transverse groove of the acrylic bracket and is fixed through glue; the two input ports are respectively as follows: a liquid flow input (14) and a bubble input (15). Liquid at the output end of an infusion pump to be detected flows in through a liquid flow input port (14), bubbles flow in through a bubble input port (15), a section of pillow-shaped liquid is generated by controlling a driver (18) of a bubble generation unit (1) through a control unit (4), a liquid flow detection circuit (6) is a miniature photoelectric sensor (16) with the model of EE-SX199, and the generated illumination intensity is different for the section of pillow-shaped liquid, so that voltage signals of different values are converted into voltage signals which are transmitted to an operational amplifier OPA333 to be subjected to signal amplification and then are input to a microprocessor control circuit (10), and the detection of the liquid flow is completed.
As shown in fig. 3, when the infusion pump to be tested normally works, the output end of the infusion pump to be tested is used as the input end of a medical infusion pump detection device and is connected to one end of a tee joint (20), the other end of the tee joint (20) is connected to a liquid flow input port (14) of a liquid flow detection unit (2) through a hose, the last end of the tee joint (20) is connected to one end of an electromagnetic valve (17) through a hose, and the other end of the electromagnetic valve (17) is connected to a liquid pressure detection unit (3) through a hose. When the electromagnetic valve (17) is closed, liquid to be detected output by the infusion pump to be detected directly flows into the liquid flow input port (14) of the liquid flow detection unit (2) through the tee joint (20), meanwhile, the driver (18) of the bubble generation unit (1) drives the peristaltic pump (19) to start working, the output end hose of the peristaltic pump is connected with the bubble input port (15) of the liquid flow detection unit (2), when the working is stable, a uniform section of pillow-shaped liquid is formed in the glass tube (13) of the liquid flow detection unit (2), the liquid flow detection unit (2) completes detection of liquid flow data and transmits the data to the control unit (4), and the liquid output by the infusion pump to be detected flows out from the other end of the glass tube of the liquid flow detection unit (2); when the electromagnetic valve (17) is opened, the bubble generating unit and the liquid flow detecting unit stop working, and the liquid to be detected of the infusion pump to be detected flows into the liquid pressure detecting unit (3) through the electromagnetic valve (17), so that the detection of the liquid pressure is completed.
while the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (4)

1. The utility model provides a medical transfer pump detection device which characterized in that: there are four structural components: the bubble generating unit, the liquid flow detecting unit, the liquid pressure detecting unit and the control unit; wherein, the bubble generating unit comprises a bubble generating circuit and is connected with the liquid flow detecting unit through a hose; the liquid flow detection unit comprises a liquid flow detection circuit and is connected with the liquid pressure detection unit through a tee joint and an electromagnetic valve; the liquid pressure detection unit comprises a liquid pressure detection circuit; the control unit comprises a lithium battery power supply conversion circuit, a wireless WIFI data transmission circuit and a microprocessor control circuit, is used for controlling the whole system to work, and is electrically connected with the bubble generation unit, the liquid flow detection unit and the liquid pressure detection unit.
2. The medical infusion pump detection device of claim 1, wherein: the microprocessor control circuit is electrically connected with the bubble generation circuit, the liquid flow detection circuit, the liquid pressure detection circuit, the lithium battery power supply conversion circuit and the wireless WIFI data transmission circuit; the microprocessor control circuit mainly comprises a processor with model number MSP430F5438IPZ for controlling the whole system to work; the bubble generating circuit is electrically connected with the output end of the microprocessor control circuit; the liquid flow detection circuit mainly comprises eight miniature photoelectric sensors with the model number of EE-SX199, liquid output by the infusion pump to be detected flows into a liquid flow detection unit glass tube, the generated illumination intensity is different, and voltage signals converted into different numerical values are transmitted to an operational amplifier OPA333 for signal amplification and then are electrically connected with the input end of a microprocessor control circuit; the liquid pressure detection circuit mainly comprises a voltage liquid level transmitter with the model number of PCM300D, which is used for signal amplification through an operational amplifier OPA333 and then is electrically connected with the input end of a microprocessor control circuit; the lithium battery power supply conversion circuit mainly comprises a lithium battery charging circuit consisting of a lithium battery charger TP4056, and a power supply conversion circuit consisting of a power supply conversion chip SP6203 supplies power to the bubble generation circuit, the liquid flow detection circuit, the liquid pressure detection circuit, the wireless WIFI data transmission circuit and the microprocessor control circuit; the wireless WIFI data transmission circuit mainly comprises a WIFI module WIFI232 and a communication end of the microprocessor control circuit is electrically connected, and wireless uploading of detection data is completed.
3. The medical infusion pump detection device of claim 1, wherein: the liquid flow detection unit structurally comprises three components: the device comprises a liquid flow detection plate, an acrylic bracket and a glass tube; the integrated liquid flow detection circuit of the liquid flow detection plate mainly comprises eight types of EE-SX199 miniature photoelectric sensors which are fixedly connected with an acrylic bracket through screws; the acrylic bracket is made of a completely black opaque acrylic material; the diameter of the glass tube is 3mm, the glass tube is provided with two input ports, the glass tube is directly placed in the center of the acrylic bracket and is fixed by glue; the two input ports are respectively as follows: a liquid flow input and a bubble input.
4. The medical infusion pump detection device of claim 1, wherein: the bubble generation unit structurally comprises four components: a driver, a peristaltic pump; the driver is MD02322 in model number, is electrically connected with the peristaltic pump, and drives the peristaltic pump to rotate in a pulse mode; the peristaltic pump consists of a stepping motor and a pump head, wherein the model of the stepping motor is KFS-ST0B04PDI, and the stepping motor is provided with a rotating shaft with a Y-shaped section and is directly inserted into the pump head; and a hose at one end of the peristaltic pump head is suspended and used for collecting air, and a hose at the other end is directly connected to a bubble input port of the liquid flow detection unit to complete the input of bubbles.
CN201910889737.6A 2019-09-18 2019-09-18 Medical transfer pump detection device Pending CN110541814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910889737.6A CN110541814A (en) 2019-09-18 2019-09-18 Medical transfer pump detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910889737.6A CN110541814A (en) 2019-09-18 2019-09-18 Medical transfer pump detection device

Publications (1)

Publication Number Publication Date
CN110541814A true CN110541814A (en) 2019-12-06

Family

ID=68714160

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910889737.6A Pending CN110541814A (en) 2019-09-18 2019-09-18 Medical transfer pump detection device

Country Status (1)

Country Link
CN (1) CN110541814A (en)

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