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Korotkoff's sound sensor

A sensor, Korotkoff sound technology, applied in the direction of cardiac catheterization, to achieve the effect of overcoming complexity, good anti-interference performance, and moderate frequency response range

Inactive Publication Date: 2015-03-25
BEIJING XINXING YANGSHENG TECHN CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, it was proposed to use two Korotkoff sound sensors at a certain distance along the arm to suppress external noise interference. However, this technology requires that the characteristics of the two sensors and channels be highly consistent, and different blood vessels under the two sensors The Korotkoff sounds are not exactly the same in every situation, so this method also has great limitations

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Embodiment Construction

[0020] The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention. For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in functions of components as a criterion. The following description of the specification is a preferred embodiment for implementing the present invention, but the description is for the purpose of explaining the general principles of the present invention and is not intended to limit the scope of the present invention. The protection scope of the present invention shall be subject to those defined by the appended claims.

[0021] The present ...

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Abstract

The invention discloses a Korotkoff's sound sensor. The Korotkoff's sound sensor comprises a sensor monitoring probe, wherein the sensor monitoring probe is positioned at an end of the Korotkoff's sound sensor and comprises a supporting base with a cavity structure in the middle; upward flanges are arranged at two ends of the supporting base; a step structure which is higher than a plane of the cavity structure is formed on the supporting base; a piezoelectric metal substrate is fixedly supported on the step structure; a stress acoustic medium transmitting unit is adhered to the upper surface of the metal substrate; a piezoelectric sensor is solidified on the lower surface of the metal substrate; signal processing circuits are arranged below the piezoelectric sensor and in the cavity structure at intervals; and each signal processing circuit is provided with an output end; and signals can be transmitted from the output ends of the signal processing circuits to an external Korotkoff's sound hematomanometer. The problem that the original Korotkoff's sound sensor is poor in anti-interference performance, low in sound intensity and not high in frequency resolution is solved.

Description

Technical field [0001] The invention relates to a blood pressure measuring device, in particular to an active Korotkoff sound sensor capable of automatically picking up Korotkoff sound signals, and more specifically, to a sensor monitoring probe on the Korotkoff sound sensor. Background technique [0002] Blood pressure is an important parameter that reflects the functions of the human circulatory system. It can reflect the functional status of the human heart and blood vessels, and thus becomes an important basis for clinical diagnosis of diseases and observation of treatment effects. With economic development and the improvement of people’s living standards, the incidence of cardiovascular diseases (such as hypertension) has increased significantly, and the age of illness is gradually getting younger. Inaccurate blood pressure measurement can mislead doctors to correctly judge the condition. Great harm to human health. Therefore, accurate blood pressure measurement is particul...

Claims

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Application Information

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IPC IPC(8): A61B5/0225
CPCA61B5/02208A61B5/0225
Inventor 陈宝明向海燕刘延勇王乃中俞海俞梦孙
Owner BEIJING XINXING YANGSHENG TECHN CORP
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