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Device and method for detecting blood pressure and oxyhemoglobin saturation simultaneously
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Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A detection device and saturation technology, which can be used in blood characterization devices, diagnostic recording/measurement, medical science, etc., and can solve the problems of complex structure and many electronic components of the detection device.
Active Publication Date: 2014-02-26
HEILONGJIANG UNIV
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[0003] The present invention aims to solve the problem that the existing detection of blood pressure and blood oxygen saturation needs to be realized by separate sensors, resulting in many electronic components and complicated structure of the detection device, and provides a simultaneous detection device of blood pressure and blood oxygen saturation and detection method
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specific Embodiment approach 1
[0052] Specific implementation mode one: the following combination figure 1 Describe this embodiment, the simultaneous detection device of blood pressure and blood oxygen saturation described in this embodiment, it comprises cuff 1, it also comprises pulse generator 2, photoelectric volume sensor 3, peak holder 4, the first high-pass filter 5-1, first low-pass filter 5-2, second high-pass filter 5-3, second low-pass filter 5-4, A / D converter 6, D / A converter 7, computer 8, Electropneumatic converter 9, air pump 10, power amplifier 11 and pressure sensor 12,
[0053] The air pump 10 supplies air to the cuff 1 through the pipeline, the electro-pneumatic converter 9 is arranged on the pipeline between the air pump 10 and the cuff 1, and the control signal input end of the electro-pneumatic converter 9 is connected to the control signal output end of the power amplifier 11 , the control signal input end of the power amplifier 11 is connected to the analog signal output end of the...
specific Embodiment approach 2
[0057] Specific Embodiment 2: This embodiment is a further description of Embodiment 1. The light-emitting wavelength of the light-emitting diode with the first wavelength is 940nm, the light-emitting wavelength of the light-emitting diode with the second wavelength is 805nm, and the photosensitive wavelength center range of the photodiode is 805nm to 940nm .
[0058] The photocapacitive volumetric sensor 3 consists of two light-emitting diodes LED with different wavelengths and a photodiode PD. Two-wavelength LEDs can be used as a light source in an integrated structure. The photosensitive wavelength of the PD that absorbs reflected light needs to cover the range of 805nm and 940nm, that is, it can effectively absorb the reflected light of LEDs with two wavelengths.
specific Embodiment approach 3
[0059] Embodiment 3: This embodiment is a further description of Embodiment 1 or 2, and the driving frequency of the pulse generator 2 is 500 Hz.
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Abstract
The invention discloses a device and a method for detecting blood pressure and oxyhemoglobin saturation simultaneously, and belongs to the technical field of radial artery detection. By the device and the method, the problems that the blood pressure and the oxyhemoglobin saturation are needed to be detected by using separate sensors at present, so more electronic components of a detection device are needed, and the detection device is complex in structure are solved. The device comprises a cuff, a pulse generator, a photoelectric plethysm sensor, a wave crest retainer, a first high-pass filter, a first low-pass filter, a second high-pass filter, a second low-pass filter, an analog to digital (A / D) converter, a digital to analog (D / A) converter, a computer, an electro-pneumatic converter, an air pump, a power amplifier, and a pressure sensor; and according to the method, the radial artery is used as a detected target, the blood pressure, and the oxyhemoglobin saturation of arterial and venous blood can be detected simultaneously, and the oxyhemoglobin saturation of the venous blood is measured indirectly. The device and the method are suitable for detecting the blood pressure and the oxyhemoglobin saturation simultaneously.
Description
technical field [0001] The invention relates to a simultaneous detection device and method for blood pressure and blood oxygen saturation, belonging to the technical field of radial artery detection. Background technique [0002] At present, there are many indirect blood pressure measurement methods in clinical or daily health checks. For example, the traditional Korotkoff-based mercury sphygmomanometer blood pressure measurement method based on the brachial artery of the upper arm; the electronic sphygmomanometer blood pressure measurement method based on the pressure oscillometric method based on the radial artery at the wrist as the detection object; Electronic sphygmomanometer blood pressure measurement method based on volume vibration method; electronic sphygmomanometer blood pressure measurement method based on volume vibration method with finger artery as the detection object, etc. For the indirect measurement method of blood oxygen saturation, finger arteries are us...
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