Automatic detection device for infusion apparatus

By designing an automatic detection device for infusion sets, which uses adjustment structures and sensors to monitor the state of the medication and control the flow rate and air pressure, the problem of inaccurate detection in existing equipment is solved, and comprehensive detection of infusion sets under different conditions is achieved.

CN223976835UActive Publication Date: 2026-03-06DEMAI INSTR TECH (HANGZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing infusion set testing equipment has limited functionality, making it difficult to comprehensively and accurately evaluate various performance indicators. It also cannot simulate the complex flow rate and air pressure conditions during actual infusion, resulting in inaccurate and incomplete testing.

Method used

An automatic detection device for infusion sets was designed. The device automatically adjusts the test pressure according to the liquid flow rate through an adjustable structure, monitors the weight and temperature of the medicine by combining a weighing device and a temperature sensor, controls the flow rate and air pressure using a gearbox, and is equipped with a display screen to monitor the data.

Benefits of technology

It enables comprehensive testing of infusion sets under different flow rates and pressures, improving the accuracy and comprehensiveness of testing and ensuring the reliability and stability of test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic detection device for an infusion apparatus, which relates to the field of medical equipment and comprises a device main body, a control device, a weighing device and a heating plate are arranged on the upper top surface of the device main body, and a first vent valve and a second vent valve are arranged on one surface of the control device. A supporting rod is arranged on the device body and located on one side of the heating disc in a matched mode, a temperature sensor is movably arranged on the supporting rod, and an adjusting structure is arranged at the top of the control device and comprises an adjusting block. The weighing device and the temperature sensor are used for respectively monitoring the weight and the temperature of liquid medicine in the feeding beaker and the feeding beaker, and then the heating disc is controlled according to the temperature, so that the weight and the temperature of the liquid medicine can be accurately controlled, the liquid medicine is ensured to be in a proper state during detection, the stability of a detection environment is improved, and a detection result is more reliable.
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Description

Technical Field

[0001] This utility model relates to the field of medical equipment, specifically an automatic detection device for infusion sets. Background Technology

[0002] In the medical field, intravenous infusion therapy is an extremely common treatment. With the continuous advancement of medical technology and the sustained increase in the number of patients, the requirements for the quality and safety of infusion sets are becoming increasingly stringent. Ensuring the reliable and trouble-free performance of infusion sets plays a crucial role in guaranteeing patient treatment outcomes and medical safety, which has spurred vigorous research and development of advanced infusion set testing technologies.

[0003] Currently, most infusion set testing relies on manual operation or relatively simple equipment. Manual testing not only consumes a lot of manpower and time, but is also prone to missed detections due to human error. Existing simple testing equipment has limited functions and is difficult to comprehensively and accurately evaluate the various performance indicators of infusion sets, resulting in significant deficiencies in testing efficiency and accuracy.

[0004] Current technology for testing infusion sets typically involves connecting the set to a simple connector and visually inspecting for obvious problems such as leaks. However, this technology has significant shortcomings in controlling the flow rate and pressure of the infusion set. It cannot automatically adjust the pressure based on changes in the fluid flow rate within the set, making it difficult to simulate the complex flow rate and pressure conditions during actual infusion. This results in inaccurate performance testing of the infusion set under different operating conditions, hindering the effective detection of potential problems and significantly impacting the comprehensiveness and reliability of infusion set testing. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide an automatic detection device for infusion sets, so as to solve the technical problems of inaccurate control of pressure and flow rate and incomplete monitoring data when detecting infusion sets.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic detection device for infusion sets, comprising a main body, a control device, a weighing device, and a heating plate disposed on the top surface of the main body, a first vent valve and a second vent valve disposed on one side of the control device, a support rod disposed on the side of the heating plate of the main body, a temperature sensor movably disposed on the support rod, an adjustment structure disposed on the top of the control device, the adjustment structure comprising an adjustment block, a gearbox disposed on the top of the control device in conjunction with the adjustment block, and a pair of connecting... The adjustment block has a pair of connecting heads fitted inside, and an infusion channel is provided inside the adjustment block with the connecting heads. The infusion channel connects to the pair of connecting heads. A transmission block is rotatably arranged inside the adjustment block. A connecting shaft is provided at the bottom of the transmission block. The connecting shaft extends outside the adjustment block. A second rotating disk is provided at the bottom of the connecting shaft. A pair of locking strips are symmetrically arranged on the second rotating disk. A first rotating disk is provided at the bottom of the adjustment block on one side of the locking strips. Several locking blocks are provided on the first rotating disk with the locking strips. A rotating shaft is provided through the first rotating disk. A mounting box is provided inside the adjustment block with the rotating shaft.

[0007] By adopting the above technical solution, the test pressure can be automatically adjusted according to the liquid flow rate by adjusting the structure.

[0008] The present invention is further configured such that a coil spring is provided inside the mounting box in conjunction with the rotating shaft, a connecting plate is provided at the bottom of the coil spring, a limiting shaft is provided inside the mounting box in conjunction with the connecting plate, a damping mechanism is provided inside the mounting box in conjunction with the limiting shaft, and a friction ring is provided inside the mounting box in conjunction with the rotating shaft.

[0009] By adopting the above technical solution, the device can be slowly reset through the combination of coil spring, damping and friction ring, thereby realizing the control of the test liquid flow rate.

[0010] The present invention is further configured such that a stainless steel pipe is provided on the main body of the device in conjunction with the second vent valve, and a three-way pipe is provided on the stainless steel pipe in conjunction with the second vent valve.

[0011] By adopting the above technical solution, the infusion set to be tested is connected to the gas circuit of the three-way pipe by a stainless steel pipe.

[0012] The present invention is further configured such that the bottom of the rotating shaft is connected to a gear box, and the gear box is provided with an air pressure adjustment knob and a pumping speed adjustment knob, and the air pressure adjustment knob is connected to the gear inside the gear box.

[0013] By adopting the above technical solution and through the set gear box, power transmission is realized, and then power transmission is controlled, thereby realizing the control of infusion flow rate.

[0014] The present invention is further provided that the control device is equipped with a display screen.

[0015] By adopting the above technical solution, various data within the device can be monitored through a display screen, thereby facilitating the control of the device.

[0016] The present invention is further provided that a pressure sensor is installed on the control device in conjunction with a stainless steel tube.

[0017] By adopting the above technical solution, the pipeline pressure is monitored using a pressure sensor.

[0018] The present invention is further configured such that a top rod is provided on one side of the main body of the device, a connecting block is provided on the top of the top rod, and a plurality of connecting pipes are provided on the connecting block.

[0019] By adopting the above technical solution, the connecting block supports the connecting pipe, and the connecting pipe connects the pipelines inside the device.

[0020] In summary, the present invention has the following main advantages:

[0021] This invention uses a weighing device and a temperature sensor to monitor the weight and temperature of the liquid medicine supplied to the beaker. By controlling the heating plate according to the temperature, the weight and temperature of the liquid medicine can be accurately controlled, ensuring that the liquid medicine is in a suitable state during the test, improving the stability of the test environment, and making the test results more reliable.

[0022] This invention utilizes an adjustment structure to drive the transmission components according to the liquid flow rate in the infusion channel, thereby controlling the air pressure adjustment knob to change the air pressure inside the infusion set. It can automatically adjust the air pressure according to the flow rate, simulating a real infusion scenario, and comprehensively testing the performance of the infusion set under different flow rates and air pressures, thus improving the accuracy and comprehensiveness of the test. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the control device of this utility model;

[0026] Figure 4 This is a schematic diagram of the overall structure of the control device of this utility model;

[0027] Figure 5 This is an internal sectional view of the control device of this utility model;

[0028] Figure 6This is a schematic diagram of the three-way pipe structure of this utility model.

[0029] In the diagram: 1. Main body of the device; 2. Control device; 3. First vent valve; 4. Pressure sensor; 5. First rotating disk; 6. Clamping block; 7. Pumping speed adjustment knob; 8. Gearbox; 9. Second rotating disk; 10. Air pressure adjustment knob; 11. Connecting block; 12. Top rod; 13. Connecting shaft; 14. Support rod; 15. Temperature sensor; 16. Second vent valve; 17. T-connector; 18. Stainless steel pipe; 19. Weighing device; 20. Heating plate; 21. Connecting pipe; 22. Adjusting block; 23. Transmission block; 24. Mounting box; 25. Infusion channel; 26. Connector; 27. Clamping strip; 28. Limiting shaft; 29. ​​Coil spring; 30. Connecting plate; 31. Friction ring; 32. Rotating shaft; 33. Display screen. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The embodiments of this utility model will be described below based on its overall structure.

[0032] An automatic detection device for infusion sets, such as Figure 1-6 As shown, the device includes a main body 1. A control device 2, a weighing device 19, and a heating plate 20 are arranged on the top surface of the main body 1. A first vent valve 3 and a second vent valve 16 are arranged on one side of the control device 2. A support rod 14 is arranged on one side of the heating plate 20 of the main body 1. In actual use, the beaker for supply and the beaker for loading are placed on the weighing device 19 and the heating plate 20 respectively to monitor the weight of the medicine and control the temperature of the medicine. In conjunction with this, a temperature sensor 15 is movably arranged on the support rod 14 to monitor the temperature of the medicine and control the heating plate 20 to be turned on according to the temperature of the medicine.

[0033] In conjunction with the above structure, a top rod 12 is provided on one side of the main body 1 of the device, a connecting block 11 is provided on the top of the top rod 12, and several connecting pipes 21 are provided on the connecting block 11. An adjustment structure is provided on the top of the control device 2. A stainless steel pipe 18 is provided on the main body 1 of the device in conjunction with the second vent valve 16. A three-way pipe 17 is provided on the stainless steel pipe 18 in conjunction with the second vent valve 16. The three-way pipe 17 connects the second vent valve 16 or the first vent valve 3, the adjustment structure and the connecting pipes 21. At the same time, a pressure sensor 4 is provided on the control device 2 in conjunction with the stainless steel pipe 18. In actual use, one end of the infusion set to be tested is connected to the pressure sensor 4 and the other end is connected to the stainless steel pipe 18, thereby forming a closed loop of the entire device, thereby monitoring the infusion set and controlling the pressure inside the infusion set through the set vent valve.

[0034] The bottom of the rotating shaft 32 is connected to the gear box 8. The gear box 8 is equipped with an air pressure adjustment knob 10 and a pumping speed adjustment knob 7. The air pressure adjustment knob 10 is connected to the gear inside the gear box 8.

[0035] Specifically, the adjustment structure includes an adjustment block 22. A gearbox 8 is mounted on the top of the control device 2, fitted to the adjustment block 22. A pair of connectors 26 are located at the end of the adjustment block 22 away from the gearbox 8. The pair of connectors 26 fits inside the adjustment block 22. An infusion channel 25 is provided within the adjustment block 22, connected to the pair of connectors 26. A transmission block 23 is rotatably mounted within the adjustment block 22, with a portion of the transmission block 23 located within the infusion channel 25. When the liquid is in the infusion channel 25, it can drive the transmission block 23 to rotate. The bottom of the transmission block 23 is provided with a connecting shaft 13, which extends to the outside of the adjusting block 22. The bottom of the connecting shaft 13 is provided with a second rotating disk 9, on which a pair of locking strips 27 are symmetrically arranged. The bottom of the adjusting block 22 is provided with a first rotating disk 5 on one side of the locking strips 27. The first rotating disk 5 is provided with a plurality of locking blocks 6 in cooperation with the locking strips 27. In this application, the contact angle between the locking block 6 and the locking strip 27 is greater than 120°. Thus, when the flow velocity in the pipe is high, the second rotating disk 9 rotates slowly. At this time, when the clamping strip 27 contacts the clamping block 6, it can slowly drive the first rotating disk 5 to rotate. If the flow velocity is high, the second rotating disk 9 rotates slowly, and the clamping strip 27 contacts the clamping block 6 quickly, thus not driving the first rotating disk 5 to rotate. In coordination with this, a rotating shaft 32 is provided through the first rotating disk 5. A mounting box 24 is provided inside the adjusting block 22 to cooperate with the rotating shaft 32. A coil spring 29 is provided inside the mounting box 24 to cooperate with the rotating shaft 32. A connecting plate 30 is provided at the bottom of the mounting box 24. A limiting shaft 28 is provided inside the mounting box 24 to cooperate with the connecting plate 30. A damping mechanism is provided inside the mounting box 24 to cooperate with the limiting shaft 28. A friction ring 31 is provided inside the mounting box 24 to cooperate with the rotating shaft 32. With this configuration, when the first rotating disk 5 has not rotated for a long time, it will be driven to slowly reset by the action of the coil spring 29, which will then drive the air pressure regulating knob 10 to rotate, thereby controlling the air pressure to increase the flow rate and test the infusion set.

[0036] The control device 2 is equipped with a display screen 33, which monitors various data in the infusion tube and presets and adjusts various parameters according to actual usage needs.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An automatic detection device for an infusion set, comprising a device body (1), wherein a control device (2), a weighing device (19), and a heating plate (20) are disposed on the top surface of the device body (1), wherein a first vent valve (3) and a second vent valve (16) are disposed on one side of the control device (2), and a support rod (14) is disposed on the device body (1) in conjunction with the heating plate (20), wherein a temperature sensor (15) is movably disposed on the support rod (14), characterized in that: The control device (2) is provided with an adjusting structure on the top, the adjusting structure comprises an adjusting block (22), the top of the control device (2) is provided with a gear box (8) matched with the adjusting block (22), one end of the adjusting block (22) away from the gear box (8) is provided with a pair of connecting heads (26), a pair of connecting heads (26) are matched in the adjusting block (22), a transfusion channel (25) is arranged in the adjusting block (22) matched with the connecting heads (26), the transfusion channel (25) is communicated with the connecting heads (26), a transmission block (23) is rotatably arranged in the adjusting block (22), a connecting shaft (13) is arranged at the bottom of the transmission block (23), the connecting shaft (13) extends out of the adjusting block (22), a second rotating disc (9) is arranged at the bottom of the connecting shaft (13), a pair of clamping strips (27) are symmetrically arranged on the second rotating disc (9), a first rotating disc (5) is arranged at the bottom of the adjusting block (22) on one side of the clamping strip (27), a plurality of clamping blocks (6) are arranged on the first rotating disc (5) matched with the clamping strip (27), a rotating shaft (32) is arranged on the first rotating disc (5) and penetrates through, and a mounting box (24) is arranged in the adjusting block (22) matched with the rotating shaft (32).

2. The automatic detection device for infusion apparatus according to claim 1, characterized in that: The mounting box (24) is provided with a coil spring (29) matched with the rotating shaft (32), the bottom of the coil spring (29) is provided with a connecting plate (30), the mounting box (24) is provided with a limiting shaft (28) matched with the connecting plate (30), the mounting box (24) is provided with a damping matched with the limiting shaft (28), and the mounting box (24) is provided with a friction ring (31) matched with the rotating shaft (32).

3. The automatic detection device for infusion apparatus according to claim 1, characterized in that: The device body (1) is provided with a stainless steel pipe (18) matched with the second air valve (16), and the stainless steel pipe (18) is provided with a three-way pipe (17) matched with the second air valve (16).

4. The automatic detection device for infusion apparatus according to claim 1, characterized in that: The bottom of the rotating shaft (32) is connected with the gear box (8), the gear box (8) is provided with an air pressure adjusting knob (10) and a water pumping speed adjusting knob (7), and the air pressure adjusting knob (10) is connected with the gear in the gear box (8).

5. The automatic detection device for infusion apparatus according to claim 1, characterized in that: The control device (2) is provided with a display screen (33).

6. The automatic detection device of infusion apparatus according to claim 3, characterized in that: The control device (2) is provided with a pressure sensor (4) matched with the stainless steel pipe (18).

7. The automatic detection device of infusion apparatus according to claim 3, characterized in that: One side of the device body (1) is provided with a jacking rod (12), the top of the jacking rod (12) is provided with a connecting block (11), and a plurality of communication pipes (21) are arranged on the connecting block (11).