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CN-224231295-U - Medical gas system calibrating device

CN224231295UCN 224231295 UCN224231295 UCN 224231295UCN-224231295-U

Abstract

The utility model relates to a medical gas system calibration device which comprises a test module, a control module and a display module, wherein the control module is connected with the display module, the test module comprises a test tube and a test assembly, the test tube comprises a main tube and a first branch tube, the test assembly comprises a flowmeter, a particle counter and an oxygen measuring probe, one end of the main tube is a positive pressure connecting end, the other end of the main tube is a negative pressure connecting end, the flowmeter is arranged in the main tube, a control valve is further arranged at a part of the main tube between the flowmeter and the positive pressure connecting end, one end of the first branch tube is communicated with the side surface of the positive pressure connecting end of the main tube, the other end of the first branch tube is a particle counter connector and is connected with a particle technology, a normally closed first electromagnetic valve is arranged on the first branch tube, and the flowmeter, the first electromagnetic valve and the oxygen measuring probe are all connected with the control module. The utility model has high integration degree, can greatly improve the calibration efficiency, and realizes the on-site calibration of the centralized oxygen supply, centralized suction and air supply systems in the medical gas system.

Inventors

  • PENG HAIYANG
  • ZHU PEILING
  • LUO WEIQIANG
  • TIAN JINGBO
  • CHEN ZHIBIN
  • XIE ZHICONG

Assignees

  • 广东省韶关市质量计量监督检测所

Dates

Publication Date
20260512
Application Date
20250717

Claims (8)

  1. 1. The medical gas system calibration device is characterized by comprising a test module (1), a control module (2) and a display module (3), wherein the control module (2) is connected with the display module (3); The test module (1) comprises a test tube and a test assembly, wherein the test tube comprises a main tube (101) and a first branch tube (105), the test assembly comprises a flowmeter (102), a particle counter (112) and an oxygen measuring probe (104), one end of the main tube (101) is a positive pressure connecting end, the other end of the main tube (101) is a negative pressure connecting end, the flowmeter (102) is arranged in the main tube (101), a control valve (103) is further arranged on the part of the main tube (101) between the flowmeter (102) and the positive pressure connecting end, one end of the first branch tube (105) is communicated with the side face of the positive pressure connecting end of the main tube (101), the other end of the first branch tube (105) is a particle counter (112) connector and connected with the particle counter, a normally closed first electromagnetic valve (106) is arranged on the first branch tube (105), and the flowmeter (102), the first electromagnetic valve (106) and the oxygen measuring probe (104) are all connected with the control module (2).
  2. 2. A medical gas system calibration device according to claim 1, characterized in that the control valve (103) is a needle-type regulating valve for fine adjustment of the gas flow through the flow meter (102).
  3. 3. The medical gas system calibration apparatus of claim 1, wherein the test assembly further comprises a pressure sensor (108), the pressure sensor (108) being arranged in the portion of the main tube (101) between the positive pressure connection and the control valve (103), the pressure sensor (108) being connected to the control module (2) for detecting the gas pressure.
  4. 4. A medical gas system calibration apparatus according to claim 1, wherein the test assembly further comprises a temperature sensor (107), the temperature sensor (107) being connected to the control module (2) for detecting the ambient temperature.
  5. 5. The medical gas system calibration apparatus of claim 1, wherein the test assembly further comprises a humidity sensor (111), the humidity sensor (111) being arranged in the portion of the main tube (101) between the positive pressure connection and the control valve (103), the humidity sensor (111) being connected to the control module (2) for detecting the humidity of the gas.
  6. 6. The medical gas system calibration apparatus according to claim 5, wherein the test tube further comprises a second branch tube (109), one end of the second branch tube (109) is in lateral communication with the positive pressure connection end of the main tube (101), the other end of the second branch tube (109) is a closed end, and the humidity sensor (111) is disposed on the second branch tube (109).
  7. 7. The medical gas system calibration apparatus according to claim 6, wherein the second branch pipe (109) is further provided with a normally closed second electromagnetic valve (110), the humidity sensor (111) is provided between the closed end of the second branch pipe (109) and the second electromagnetic valve (110), the second electromagnetic valve (110) is connected with the control module (2), and the second electromagnetic valve (110) is opened when the humidity of the gas needs to be tested.
  8. 8. A medical gas system calibration apparatus according to claim 1, wherein the display module (3) is a display screen.

Description

Medical gas system calibrating device Technical Field The utility model relates to the technical field of calibration, in particular to a medical gas system calibration device. Background The medical gas system is a central life support system of a hospital and is responsible for providing safe and stable medical gas and negative pressure suction services for patients and medical equipment. The medical gas system mainly comprises a medical center oxygen supply system, a medical center suction system and a medical air system. The pressure, flow, humidity, temperature, dust particle count, oxygen concentration and other parameters related in the medical gas system need to be calibrated on site, and if a metering and calibrating technician needs to simultaneously supply oxygen to a medical center, a medical center suction system and medical air on site, a plurality of sets of general test equipment need to be carried, so that the operation is inconvenient. Based on the above, the present utility model proposes a novel calibration device for a medical gas system to solve the above-mentioned problems. Disclosure of Invention Aiming at the defects existing in the prior art, the utility model aims to provide a medical gas system calibration device which has high integration degree, can greatly improve the calibration efficiency and realizes the on-site calibration of a centralized oxygen supply, a centralized suction and air supply system in a medical gas system. The technical aim of the utility model is realized by the following technical scheme: the medical gas system calibration device comprises a test module, a control module and a display module, wherein the control module is connected with the display module; The test module comprises a test tube and a test assembly, wherein the test tube comprises a main tube and a first branch tube, the test assembly comprises a flowmeter, a particle counter and an oxygen measuring probe, one end of the main tube is a positive pressure connecting end, the other end of the main tube is a negative pressure connecting end, the flowmeter is arranged in the main tube, a control valve is further arranged at a part of the main tube between the flowmeter and the positive pressure connecting end, one end of the first branch tube is communicated with the side surface of the positive pressure connecting end of the main tube, the other end of the first branch tube is a particle counter connector and connected with a particle technology device, a normally closed first electromagnetic valve is arranged on the first branch tube, and the flowmeter, the first electromagnetic valve and the oxygen measuring probe are all connected with the control module. In one embodiment, the control valve is a needle-type regulator valve for fine-tuning the flow of gas through the flow meter. In one embodiment, the test assembly further comprises a pressure sensor disposed in the main pipe portion between the positive pressure connection end and the control valve, the pressure sensor being connected to the control module for detecting gas pressure. In one embodiment, the test assembly further comprises a temperature sensor coupled to the control module for detecting an ambient temperature. In one embodiment, the testing assembly further comprises a humidity sensor disposed in the main pipe portion between the positive pressure connection end and the control valve, the humidity sensor being connected to the control module for detecting gas humidity. In one embodiment, the test tube further comprises a second branch tube, one end of the second branch tube is communicated with the side face of the positive pressure connecting end of the main tube, the other end of the second branch tube is a closed end, and the humidity sensor is arranged on the second branch tube. In one embodiment, the second branch pipe is further provided with a normally closed second electromagnetic valve, the humidity sensor is arranged between the closed end of the second branch pipe and the second electromagnetic valve, the second electromagnetic valve is connected with the control module, and the second electromagnetic valve is opened when the humidity of gas needs to be tested. In one embodiment, the display module is a display screen. In summary, the utility model has the following beneficial effects: The utility model can realize the whole project calibration measurement through one-time access, has high integration degree, simple and reliable structure and low cost, can greatly improve the calibration efficiency, and realizes the on-site calibration of the centralized oxygen supply, centralized suction and air supply systems in the medical gas system. Drawings Fig. 1 is a schematic diagram of the present utility model. In the figure, 1, a test module, 2, a control module, 3, a display module, 101, a main pipe, 102, a flowmeter, 103, a control valve, 104, an oxygen measuring probe, 105, a first branch pipe, 106, a first electroma