Medical Catheter Flow Meter
A medical catheter and measuring instrument technology, which is applied in the directions of fluid velocity measurement, velocity/acceleration/impact measurement, instruments, etc., can solve the problems of inability to test the flow velocity of medical catheters, achieves good practicability and popularization value, has a simple structure, and improves accuracy. sexual effect
Active Publication Date: 2017-10-17
山东省纺织科学研究院
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Problems solved by technology
At present, there is no medical catheter flow rate tester in the domestic market, which cannot test the flow rate of medical catheters. Therefore, a technical solution is urgently needed to solve the defects of the existing technology
Method used
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Embodiment 1
[0025] During the test, let the water flow in the medical conduit 604 for no less than 30 seconds, use the mass sensor 7 to weigh the weight of the water flowing into the water receiving box 8 within this time, and the computer reads the mass sensor within the test time. According to the data, the density of water is converted into the volume of water (V=m / ρ), and the flow rate of water flowing through the conduit is obtained, expressed in mL / min.
[0026] The specific test steps are as follows:
[0027] 1. Normal temperature control: Add 5.5L water into the lower water tank through the water inlet of the lower water tank, turn on the power switch on the control panel, continue to add water until the water level status indicator lights up, stop adding water, and through the feedback of the temperature sensor, the temperature controller 201 Adjust the heater and refrigerator so that the water temperature in the lower water tank is displayed as (22±2)°C;
[0028] 2. Water level...
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The invention discloses a flow speed testing instrument for a medical catheter. The flow speed testing instrument comprises a case, a closed-circulation constant-temperature water bath device, an operation platform and an adjustment control system, wherein the closed-circulation constant-temperature water bath device comprises an upper water tank and a lower water tank, a water inlet pipe orifice of the upper water tank is connected with an outlet of the lower water tank through an upper water pipe, a water outlet I of the upper water tank is connected with the lower water tank through a lower water pipe, and the closed-circulation constant-temperature water bath device is located in the case; a sample holder and a water receiving box are arranged on the operation platform, and the operation platform is located at the lower part of the case; the adjustment control system comprises a control panel and a computer and connected with the closed-circulation constant-temperature water bath device and a mass sensor respectively; the control panel is located on the case above the operation platform; the computer is located outside the case. The flow speed instrument for the medical catheter provides an equipment support for the flow speed detection of the medical catheter and is controlled by the computer, so that the flow speed detection accuracy of the medical catheter is improved, data detection of a flow speed performance index of the medical catheter is performed, and the flow speed testing instrument for the medical catheter has good practicability and popularization value.
Description
technical field [0001] The invention relates to the technical field of medical catheter detection devices, in particular to a medical catheter flow velocity measuring instrument. Background technique [0002] A central venous catheter is a type of endovascular tube that is placed in a large vein. Massive and rapid intravenous infusion often occurs in operations where blood loss may be large, or to maintain blood pressure during emergency treatment. At present, there is no medical catheter flow rate tester in the domestic market, and the flow rate of the medical catheter cannot be tested. Therefore, a technical solution is urgently needed to solve the defects in the prior art. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provides a medical catheter flow velocity measuring instrument capable of detecting the flow velocity of a central venous catheter with a simple structure and convenient operation. [0004] The technical sc...
Claims
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IPC IPC(8): G01P5/00
Inventor 何红霞杨成丽付伟冯洪成王慧孙长瑞
Owner 山东省纺织科学研究院