一种人工血管顺应性测试装置
By measuring the medium pressure using a high-precision injection pump and pressure sensor, and combining this with tube diameter data to calculate vascular compliance, the problem of insufficient detection accuracy caused by ignoring changes in tube wall thickness in existing technologies is solved, achieving higher testing accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUNNATECH SCI CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies neglect changes in vessel wall thickness when testing the dynamic compliance of artificial blood vessels, resulting in insufficient detection accuracy.
A high-precision injection pump is used to inject the medium, and the pressure value is measured by a pressure sensor. The vascular compliance is calculated by combining the tube diameter data and taking into account the influence of changes in tube wall thickness.
This improved the accuracy of artificial blood vessel compliance testing and reduced the impact of outer diameter changes on test results.
Smart Images
Figure CN224518375U_ABST
Abstract
Claims
1. A device for testing the compliance of artificial blood vessels, characterized in that, Including the main body of the device; The main body of the device is provided with a heat-insulating chamber, which stores a filling medium. The insulated chamber is connected to a high-precision injection pump via a pipeline, and a first valve is installed on the pipeline between the insulated chamber and the high-precision injection pump. The high-precision injection pump is connected to the tube to be tested via a pipeline, and a second valve and a first pressure sensor are provided between the tube to be tested and the high-precision injection pump. The test tube is connected to the third valve via a pipeline, and a second pressure sensor is installed between the test tube and the third valve.
2. The artificial blood vessel compliance testing device according to claim 1, wherein It also includes a control unit, which includes a microprocessor.
3. The artificial blood vessel compliance testing device according to claim 1, wherein The insulated chamber is equipped with a heating unit.
4. The artificial blood vessel compliance testing device according to claim 1, wherein The filling medium includes, but is not limited to, warm water.
5. The artificial blood vessel compliance testing device according to claim 2, wherein The microprocessor is electrically connected to the first valve, the high-precision injection pump, the second valve, the first pressure sensor, the second pressure sensor, and the third valve.
6. The artificial blood vessel compliance testing device according to claim 1, characterized in that, The high-precision injection pump has a pressurization cycle of at least 60 times per minute.
7. The artificial vessel compliance testing device of claim 1, wherein, The first valve, the second valve, and the third valve are all one-way shut-off valves.
8. The artificial vessel compliance testing device of claim 1, wherein, The upper part of the insulated chamber is covered with a cover plate.
9. The artificial vessel compliance testing device of claim 2, wherein, The surface of the main body of the device is provided with a touch screen, which is used to control the microcomputer processor.