Device and method for measuring modification degree of bioprosthesis valve by utilizing sound wave
A biological valve, acoustic wave measurement technology, applied in the direction of heart valves, etc., can solve the problems of small sample area, high price, complicated operation, etc.
Active Publication Date: 2013-07-17
成都心拓生物科技有限公司
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Problems solved by technology
The technical problem in these existing technologies is that the area of the measurement sample is too small, and they are all randomly sampled, so it is impossible to characterize the overall cross-linking degree characteristics of the artificial biological valve
In addition, the instruments used in these existing measurement techniques have disadvantages such as expensive, complicated operation, and long sample testing time.
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[0029] Before embodiments of the invention are explained in detail, it is to be understood that, in practice, the invention is not limited to the details of construction and arrangement of parts set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. As used herein, the use of "comprises" and "comprises" and variations thereof means that the items listed thereafter and equivalents thereof as well as additional items are included. Further, it should be understood that terms such as "left", "right", "upper" and "lower" are for convenience of description and are not construed as limitations, and can be replaced with each other.
[0030] Preferred embodiments of the present invention will be described below in conju...
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The invention relates to a device and method for measuring modification degree of a bioprosthesis valve by utilizing sound wave. The device comprises a sound wave generator, a speaker, a sound wave conduction device, a sample clip, a UV meter and the like. The device adopts the method for measuring the sound absorption rate or porosity of the bioprosthesis valve by utilizing the sound wave aimingat the structure change in the modification process of the pericardial material. The sound wave measuring equipment has the characteristics of rapidness, accuracy and large scanning area, thus avoiding adoption of the detection method which has the defects of time consumption and small scanning area so as to reflect the modification result of the pericardial material in real time and rapidly adjust the modified configuration process flow of the pericardial material.
Description
technical field [0001] The invention belongs to the detection of medical products, in particular to a device and method for measuring the degree of modification of artificial biological valves by using sound waves. Background technique [0002] In the preparation process of artificial biological valve, the biological valve itself has the disadvantages of low mechanical strength, easy degradation and failure, so it is often necessary to improve its stability by chemical cross-linking modification (or modification). In addition, during the process of implanting the artificial biological valve into the human body, only by modifying its surface properties and tissue structure can its service life be improved. The commonly used chemical cross-linking agent is glutaraldehyde, which can increase the strength of the valve (ie pericardium) material and improve the physical and chemical properties of the pericardium material. Since glutaraldehyde is a homobifunctional cross-linking a...
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IPC IPC(8): A61F2/24
Inventor 陈大凯李雨陈国明陈诚刘翔王云蕾林韶烨乐承筠罗七一
Owner 成都心拓生物科技有限公司