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Device and method for measuring pulse wave conduction velocity based on two-path pulse waves

A technology of conduction velocity and measuring device, which is applied in the direction of diagnostic recording/measurement, catheter, sensor, etc., which can solve difficult measurement problems and achieve the effects of small measurement error, accurate blood vessel distance, compact and convenient equipment

Pending Publication Date: 2019-03-01
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The domestic application number is 201310148670.3 and the patent application titled "Measuring device and method of pulse wave velocity physiological parameters based on photoplethysmography" uses a photoplethysmography pulse wave sensor to measure the pulse wave of the ring finger and little finger to obtain the pulse wave velocity. This invention device It is necessary to manually measure the blood vessel distance difference between the two measurement points, because the arterial distance difference between two different fingers is difficult to measure, which will cause a large error

Method used

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  • Device and method for measuring pulse wave conduction velocity based on two-path pulse waves
  • Device and method for measuring pulse wave conduction velocity based on two-path pulse waves
  • Device and method for measuring pulse wave conduction velocity based on two-path pulse waves

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Embodiment 1

[0025] 1. Embodiment one: a pulse wave velocity measurement device based on two-way pulse wave, characterized in that it includes a single finger fixing module 11, a first pulse wave sensor 5, a second pulse wave sensor 6 and a data processing module 8, wherein, the single-finger fixing module connects the first pulse wave sensor 5 and the second pulse wave sensor 6 to fix their positions, and the data processing module 8 accepts the first pulse wave sensor 5 and the second pulse wave sensor Pulse wave sensor 6 data, and send it in the smart device 9.

Embodiment 2

[0026] Embodiment 2: This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0027] The single-finger fixing module 11 is composed of two sets of flexible binding straps 4, 7 and a distance-measuring telescopic rod 1, and the two groups of flexible binding straps 4, 7 are respectively fixed on both ends of the distance-measuring telescopic rod 10. The distance-measuring telescopic rod 10 is composed of an inner rod 1 with a scale and an outer rod 2 socketed therein. The minimum scale of the distance measuring telescopic rod 10 is 3 cm, and the maximum length is 5 cm. The actual distance between the two groups of flexible binding straps 4, 7 is revealed on the scale of the distance measuring telescopic rod 10 . The first pulse wave sensor 5 and the second pulse wave sensor 6 use the same transmissive photoplethysmography sensor. The first pulse wave sensor 5 and the second pulse wave sensor 6 are respectively fixed on two groups of fle...

Embodiment 3

[0028] Embodiment three: the structure of the pulse wave velocity measurement device based on the two-way pulse wave is as follows figure 1 As shown, it includes an inner rod 1, an outer rod 2, a data transmission line 3, flexible binding bands 4 and 7, and pulse wave sensors 5 and 6. The operation steps used are as follows:

[0029] Step 1: When in use, the tester first straightens the ring finger, puts the device of the present invention on the ring finger, and adjusts the length of the distance-measuring telescopic rod so that the distance between the two sets of flexible binding straps is less than the tester's ring finger first. The maximum length between the knuckles and the second knuckles. Bind two sets of flexible binding straps on the first and second knuckles of the ring finger of the tester respectively, and adjust the tightness of the two sets of flexible binding straps to ensure that the device is The tester's ring finger does not shake and the side with the sca...

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Abstract

The invention provides a device and method for measuring the pulse wave conduction velocity based on two-path pulse waves. The device comprises flexible bundling straps, a ranging telescopic rod, pulse wave sensors and a data processing module. The ranging telescoping rod comprises an inner rod body with scales and an outer rod body with scales, a tester adjusts the length of the ranging telescoping rod so that the whole device can be bound on the ring finger of the tester, and the two sets of flexible bundling straps are fixed to one end of the inner rod and one end of the outer rod correspondingly. The two sets of pulse wave sensors fixed to the flexible bundling straps measure pulse wave signals on a first knuckle and a second knuckle on the ring finger of the tester correspondingly andsend the pulse wave signals to the data processing module. After being amplified and filtered by the data processing module, data are converted into digital signals and send to intelligent equipmentthrough a Type-c interface. The intelligent equipment calculates the delay time PTT of the two-path pulse wave signals, and the pulse wave conduction velocity is calculated through the scales on the device.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a device and method for measuring pulse wave velocity based on two-way pulse waves. Background technique [0002] Blood pressure is an important parameter that reflects the physiological information of the human body and is closely related to the health status of the human body. Therefore, accurate, stable and convenient blood pressure measurement equipment is needed in practical applications. The traditional cuff-type blood pressure measuring instrument has many disadvantages. Because it needs to be tied to the tester's arm for several minutes, the inflation and extrusion of the cuff will bring discomfort to the tester, the test time is long, and continuous real-time monitoring cannot be obtained. data. At present, the use of pulse wave velocity to calculate blood pressure has become a relatively common method of non-invasive continuous blood pressure monitoring. This...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/02
CPCA61B5/0059A61B5/02A61B5/6826
Inventor 李敏车心泽康文博贺东杨浩楠
Owner SHANGHAI UNIV