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Cardiac valve opening and closing detector

A heart valve and detector technology, applied in the field of medical devices, can solve problems such as complex structure of pulsation machine, impact of sterilization, unfavorable use, etc., achieve good adaptability and safety performance, stable flow field, and reduce waste

Active Publication Date: 2019-12-06
NINGBO JENSCARE BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many domestic companies have developed heart valve prostheses and have achieved certain success; however, detection instruments for observing the uniform opening and closing of the valve leaflets of heart valve prosthesis have not been involved, making it a research field in the field of heart valves. a blank
[0003] Although some pulsating flowmeters are used in the market for detection, the existing pulsating flowmeters are very complicated in structure, and the sterilization will be affected. At the same time, the price is very expensive, the operation is relatively difficult, time-consuming and laborious, and it is not conducive to the production line. Use, only for laboratory testing
In addition, the valve fatigue machine is used instead of observing the opening and closing of the heart valve, but the valve fatigue machine itself opens and closes too fast, which is not suitable for low flow conditions, which is even more unfavorable for observation, and to a certain extent There is some damage to the valve leaflets, and there is a big difference between the structure and the required structure

Method used

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  • Cardiac valve opening and closing detector

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0035] Such as figure 1 , figure 2As shown, a heart valve opening and closing detector includes an outer casing 1, a test chamber 2 arranged in the outer casing 1, a booster device 3 and a compliance chamber 4 that are mated and connected to the upper end of the outer casing 1, and are mated and connected to the outer casing. 1 The return pipe 5 at the lower end, the valve clamp 6 arranged in the outer casing 1 and connected with the test chamber 2, several exhaust holes 8 arranged on the outer casing 1, the front and rear ends of the test chamber 2 are opened, Observation windows 9 are arranged on the outer casing 1 at the openings at the front and rear ends of the test chamber 2, the pressurization device 3 and the test chamber 2, the compliance chamber 4 and the test chamber 2, the return pipe 5 and the test chamber 2, and the exhaust The hole 8 and the test chamber 2 are set through; the test liquid is injected into the test chamber 2 from the upper end of the compliance...

specific Embodiment 2

[0044] Such as Figures 9a-9c As shown; the outer casing 1 is provided with an installation groove 10 with an upper end opening, the installation groove 10 is provided with an inner insert 101, the valve clamp 6 is arranged inside the inner insert 101, and the inner insert The top of the piece 101 is provided with a pressure plate 102 and a cover plate 103 arranged above the pressure plate 102. The cover plate 103 is detachably connected with the outer shell 1 through the quick release part 7; the difference from the specific embodiment 1 is that the outer shell 1 Set as an integral structure, the valve clamp 6 is fixed inside the inner insert 101, and the inner insert 101 and the valve clamp 6 inside the inner insert 101 are taken out by opening the cover plate 103 and the pressure plate 102; the purpose of this design is to After the detection of a valve prosthesis is completed, it is only necessary to open the cover plate 103 and the pressure plate 102, take out the inner i...

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Abstract

The invention relates to the technical field of medical apparatus and instruments, in particular to a cardiac valve opening and closing detector. The detector comprises an outer shell body, a testingcavity, a testing cavity, a pressure boost device, a compliance cavity, a backflow pipe, a valve fixture, a quick dismounting element and an air outlet, wherein the front end and the rear end of the testing cavity are independently provided with an opening; an observation window is independently arranged on the openings on the front end and the rear end of the testing cavity on the outer shell body; and the pressure boost device and the testing cavity, the compliance cavity and the testing cavity, the backflow cavity and the testing cavity as well as a Luer taper and the testing cavity can bein through arrangement. The detector can use a syringe as a power source and also can use various pneumatic and liquid-operated pulsating pumps as power sources. Meanwhile, due to a special power transmission system, the liquid or the gas of a power mechanism can be isolated from an aseptic liquid in a cavity body so as to prevent the liquid and the gas in the pump from being in contact with the liquid in the cavity, bacteria are effectively isolated, and the waste of the liquid is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a heart valve opening and closing detector. Background technique [0002] With the development of social economy and the aging of population, the incidence of valvular heart disease has increased significantly. Studies have shown that the incidence of valvular heart disease in the elderly population over 75 years old is as high as 13.3%. At present, many domestic companies have developed heart valve prostheses and have achieved certain success; however, detection instruments for observing the uniform opening and closing of the valve leaflets of heart valve prosthesis have not been involved, making it a research field in the field of heart valves. of a blank. [0003] Although part of the market uses pulsating flowmeters for detection, the existing pulsating flowmeters are very complex in structure, and the sterilization will be affected. At the same time, the price is ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/2472
Inventor 史鼎盛曹鹏
Owner NINGBO JENSCARE BIOTECHNOLOGY CO LTD
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