Novel index for testing partial elasticity of artery

A local and index technology, applied in the field of a new index for measuring the local elasticity of arteries, can solve the problems of not reflecting local arterial blood vessel elasticity changes, and difficult to reflect blood vessel elasticity changes.

Inactive Publication Date: 2012-12-05
曹铁生 +2
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Problems solved by technology

However, these indexes are the average indexes of the overall vascular elasticity, and cannot reflect the elastic changes of local arterial vessels. Although PWV can reflect the segmental elasticity, it is difficult to reflect the local elastic changes of a certain section of blood vessels.
At present, there is no index that can accur

Method used

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  • Novel index for testing partial elasticity of artery
  • Novel index for testing partial elasticity of artery
  • Novel index for testing partial elasticity of artery

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Embodiment Construction

[0052] In order to realize the measurement and calculation of the new index of local arterial elasticity involved in this patent, the specific implementation method is as follows: the change of arterial blood pressure, that is, the pulse pressure, can be measured with a sphygmomanometer outside the body. For example, the blood pressure measured at the brachial artery is 120 / 80mmHg, and it is easy to calculate the pulse pressure as 40mmHg, which means that there will be a pressure change of 40mmHg on the blood vessel wall in each cardiac cycle. In this way, the blood vessel wall The stress changes in the circumferential and longitudinal directions can be calculated by Laplace's law, and then a new index can be calculated. In practice, systolic blood pressure and diastolic blood pressure can be measured to calculate. In the implementation, the blood pressure can be measured electronically or manually, and the blood pressure can be input into the computer, and the new index can be...

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Abstract

The invention provides a novel index for testing the partial elasticity of the artery, belonging to the field of cardiovascular mechanics and having great significance to the related basic research and clinical work. At present, a variety of indexes are used for reflecting the elasticity of the whole blood vessel, but no index is available to reflect the partial elasticity of the blood vessel, and the basic research and the clinical work have an urgent need for a novel index for measuring the partial elasticity of the artery. The novel index provided by the invention fills the blank. The novel index is obtained by measuring the stress of the blood vessel wall on different parts and in different directions (circumferential direction and longitudinal direction) when the blood vessel wall is subjected to one blood-pressure change through deducing and calculating according to the Laplace's law and essentially reflects that the force (pulse pressure) needed by the partial blood vessel wall to generate a certain stress in a certain direction represents the elasticity of the partial blood vessel. The novel index can be also used for directly calculating the Young modulus of the partial blood vessel.

Description

Technical field [0001] The patent of the present invention relates to a new index that can reflect the local elasticity of arteries. Based on the new index proposed in this patent, the quantitative detection and evaluation of local arterial blood vessel elasticity can be realized through ultrasonic equipment, and the change of local blood vessel elasticity can be understood through comparison. It helps to realize earlier diagnosis and prevention of cardiovascular diseases such as atherosclerosis and hypertension. This patent belongs to a new invention in the field of cardiovascular mechanics in medical science, which can be applied to basic research in this field and clinical diagnosis and treatment of related diseases. Background technique [0002] At present, the loss of elasticity of arterial vessels has become one of the important indicators for judging and predicting cardiovascular diseases. We know that the occurrence and development of cardiovascular diseases such as...

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Application Information

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IPC IPC(8): A61B5/02A61B5/021A61B8/08
Inventor 曹铁生袁丽君王臻
Owner 曹铁生
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