Non-wound device for measuring blood pressure
A technology of blood pressure and trauma, which is applied in the field of non-invasive continuous measurement of human arterial blood pressure, and can solve problems such as the influence of volume vibration method and volume compensation method on the measurement accuracy
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Embodiment 1
[0024] Embodiment 1 of the present invention is a method for measuring blood pressure non-invasively and intermittently at the wrist using a volume vibration method.
[0025] The method for non-invasive blood pressure measurement of the present embodiment includes the following steps:
[0026] A. Fix the rotation angles of the heel of the hand 17 relative to the wrist 18 and the wrist 18 relative to the forearm 19 at an angle most suitable for measuring radial blood pressure.
[0027] B, at least an arterial pulse sensor array 4 and a pressurized capsule 3 are arranged on the skin surface at the highest convex point of the palm side at the distal end of the radius 7 of the wrist, and the position of the sensor array and the capsule is maintained relative to this point. Change;
[0028]C. At this time, the pressure of the pressurized capsule 3 is controlled to change within the range where the lower limit is lower than the possible mean pressure of the subject and the upper li...
Embodiment 2
[0057] As the second embodiment of the present invention, it is a method and device for continuously measuring radial artery blood pressure at the wrist using the volume compensation method without trauma. As shown in FIG. 7 , the measurement location and measurement method of this embodiment are the same as those of Embodiment 1, the main difference being that the selected optimal pulse signal is used for non-invasive and continuous measurement of radial artery blood pressure waveform by volume compensation method.
[0058] Refer to Fig. 7 for the device of this embodiment, wherein the wrist detection device 1 can adopt the same device as that of embodiment 1; Explain again and again. In this embodiment, the main difference compared with Embodiment 1 is the signal processing device in the pressure supply-measurement system 32 . In this embodiment, the output end of the optimal measurement point selection circuit 28 is not used to control the pressure value output circuit 30 ...
Embodiment 3
[0063] Embodiment 3 of the present invention is a method and device capable of both intermittent blood pressure measurement and continuous blood pressure waveform measurement for the radial artery of the wrist, as shown in FIG. 9 . The measurement and positioning method of this embodiment, the best measurement point and the best pulse selection method are the same as those in Embodiment 1. The main difference is that the selected best pulse signal is alternately used for non-invasive measurement of mean pressure and systolic blood pressure by volume vibration method and non-invasive continuous measurement of radial artery blood pressure waveform by volume compensation method.
[0064] The device of this embodiment also includes a wrist detection device and a pressure-supply-measurement system. Most of the wrist detection device and pressure supply-measurement system are the same as those in the previous two embodiments, the difference is that both intermittent blood pressure v...
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