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A portable artificial heart valve in vitro performance test and circulatory system simulation device

A technology of artificial heart valve and circulatory system, applied in the direction of heart valve, etc., can solve the problems of inconvenient movement, large volume, single function, etc., and achieve the effect of low total cost, low comprehensive cost, and intuitive test and observation.

Inactive Publication Date: 2011-12-28
SUZHOU XINBAN TESTING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing test devices are all single-function: either a pulsating flow simulation test device, or a fatigue life test device, and they are large in size and inconvenient to move
None of the existing test devices can realize the functions of pulsating flow simulation test and fatigue life test on the same test device

Method used

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  • A portable artificial heart valve in vitro performance test and circulatory system simulation device
  • A portable artificial heart valve in vitro performance test and circulatory system simulation device
  • A portable artificial heart valve in vitro performance test and circulatory system simulation device

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Embodiment Construction

[0016] Please refer to figure 2 , image 3 , Figure 4 and Figure 5 , a portable artificial heart valve in vitro performance test and circulatory system simulation device consists of a flow channel 1, a drive system, a compliance device 5, a damping device 6, a valve fixing device, a switching device for pulsating flow simulation test function and fatigue life test function, temperature Control system, observe system composition.

[0017] When the pulsating flow simulation test function is performed, the drive system (including the linear motor 2, the support structure 4 and the connecting part 3), the compliance device 5, the damping device 6, the valve fixing device 2 19 (the artificial heart valve 14 is installed), and the valve fixing Device three 8 (installation of artificial heart valve 13), temperature probe 15, heating rod 16, liquid storage tank 9, sealing plug 11, pressure sensor, after the flow channel is filled with suitable liquid, the artificial heart valve ...

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Abstract

A portable artificial heart valve in vitro performance test and circulatory system simulation device can realize the functions of pulsating flow simulation test and fatigue life test. Adding accessories can realize the function of simulating the hemodynamics of different subsystems in the human circulatory system. The device is composed of a flow channel, a driving system, a compliance device, a damping device, a valve fixing device, a function switching device, a temperature control system and an observation system. The flow path is composed of a fatigue life test functional circuit and a pulsating flow simulation test functional circuit. The driving system includes a linear motor, etc., and it connects the valve fixing device one with the flow channel through the rolling diaphragm. The compliance device and the damping device communicate with the flow channel through the interface. The second valve fixing device is installed on the flow channel through the support member. The flow channel has a function switching device interface, a temperature control system interface, and an observation system interface. The whole set of device is novel in conception, exquisite in design, reasonable in structure, good in sealing performance, convenient in valve replacement, small in floor space, and easy to move.

Description

1. Technical field [0001] The invention belongs to the field of artificial heart valve test. 2. Background technology [0002] Heart valve disease is one of the major heart diseases at present, with various etiologies such as rheumatic, degenerative, and congenital, and the only treatment for most patients with valve disease is artificial heart valve replacement. Research on artificial heart valves began in the 1950s and can be divided into two types: mechanical valves and biological valves. With the emergence of artificial heart valves, people must understand the various performance indicators of the valves before performing valve replacement operations. Due to the long cycle of animal experiments and clinical experiments, the evaluation and comparison of fatigue life and mechanical properties of artificial heart valves are mainly It is realized by an in vitro simulation experiment device, so a device that can be used for in vitro performance testing of valves has been dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
Inventor 李守彦刘国宁
Owner SUZHOU XINBAN TESTING TECH CO LTD
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