Carotid artery blood pressure detecting device
AssigneesShiming Lin, Biv Medical, Ltd.
InventorShiming Lin
Life of this patent
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Abstract
The present invention provides a carotid blood pressure detection device, comprising: a first sensing unit, a second sensing unit, and a controller connected or coupled to the first sensing unit and the second sensing unit. The first sensing unit is disposed on a subject's neck and adjacent to a first position of the subject's carotid arteries. The second sensing unit is disposed on the subject's neck and adjacent to a second position of the subject's carotid arteries. The controller derives a mean arterial pressure of a section of the subject's carotid arteries that lies between the first position and the second position of the subject's carotid arteries from pulse wave data measured and obtained by the first sensing unit and pulse wave data measured and obtained by the second sensing unit.
Claims9
A carotid blood pressure detection device, comprising:
- a first sensing unit is configured to be disposed on a subject's neck and adjacent to a first position of the subject's carotid arteries;
- a second sensing unit is configured to be disposed on the subject's neck and adjacent to a second position of the subject's carotid arteries;
- and a controller connected or coupled to the first sensing unit and the second sensing unit, wherein the controller derives a mean arterial pressure of a section of the subject's carotid arteries that lies between the first position and the second position of the subject's carotid arteries from pulse wave data measured and obtained by the first sensing unit and pulse wave data measured and obtained by the second sensing unit,
- wherein the first sensing unit is a Doppler radar, a pressure sensor, an acoustic wave sensor, an ultrasound sensor, or a photoplethysmographic sensor, the second sensing unit is a Doppler radar, a pressure sensor, an acoustic wave sensor, an ultrasound sensor, or a photoplethysmographic sensor,
- wherein the mean arterial pressure is obtained through one of the following equation:
- MAP
- =
- a
-
- (
- l
- p
- t
- pa
- ×
- c
- )
- +
- b
- ,
- or
- MAP
- =
- A
-
- (
- l
- p
- t
- pa
- ×
- C
- )
- 2
- +
- B
- ,
- and
- wherein MAP is the mean arterial pressure;
- lp is a length of a path between the first position and the second position;
- tpa is times it takes for a pulse to reach the second position from the first position;
- and a, b, and c and A, B, and C are correction parameters.
Dependencies are inferred from the claim text.