Blood vessel measuring apparatus and method thereof

Abstract

The invention relates to a kind of measuring apparatus and methods, which is contacting with the arterial vessel surface nearby the life body by transducer, and measuring the followings through life body vessel: blood pressure, pulse frequency, cardiac frequency, blood flow volume, blood drag force and vascular sclerosis parameter. It can also be applied in hand-held communication apparatus, or personal digital assistant, comprising: measuring probe to measure the life body vascular system physical characteristic parameter; ways to judge whether the transducer can detect the diastolization pressure; ways to calculate and ascertain diastolization pressure by the detected waveshape if the transducer hasn't detected it; and pressure or displacement transducer. The invention makes the blood pressure measuring device more simple, smaller and more convenient to use.

Description

Technical field [0001] The present invention relates to a measuring device and method for measuring blood pressure, pulse rate, heart rate, blood flow, blood resistance, vascular sclerosis parameters, etc. And the application of the device and method in handheld communication devices, or personal digital assistants, and pressure or displacement sensors, but not limited thereto. Background technique [0002] At present, there are many known methods and devices for measuring blood pressure and pulse characteristics of living bodies through pressure and displacement sensors, such as: Chinese patent application publication, application number: 01820020.6, title: "Method and device for monitoring blood pressure" patent application , discloses a device for monitoring arterial blood pressure of a user, which continuously detects the blood pressure and generates a signal representing the blood pressure at a position adjacent to the artery through contact ...

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Problems solved by technology

[0002] At present, there are many known methods and devices for measuring blood pressure and pulse characteristics of living bodies through pressure and displacement sensors, such as: Chinese patent application publication, application number: 01820020.6, title: "Method and device for monitoring blood pressure" patent application , discloses a device for monitoring arterial blood pressure of a user, which continuously detects the blood pressure and generates a signal representing the blood pressure at a position adjacent to the artery through contact with the outer surface of the user's body through a sensor device; its disadvantages : During measurement, the sensor will move with the expansion and contraction of the arterial blood vessel, thus, the measurement sensitivity, reliability and accuracy are poor; during measurement, it must be fixed by a band, and it cannot be used as the ulnar artery of the wrist alone , or the radial artery for measurement; due to the expansion and contraction of human muscles, large measurement errors will result; to obtain the necessary accuracy, it is necessary to continuously use external calibration correction devices, therefore, it is very inconvenient to use, and the cost of production and use Higher; Chinese patent application publication, application number: 03152232.7, title: "Using pressure pulsation duty cycle to determine blood pressure method and equipment" patent application, discloses a method for obtaining blood pressure arterial data in an oscillometric manner, its The disadvantage is that a pressurized air device is required, so it is very inconvenient to use, and the production and use costs are high

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