Method and apparatus for noninvasive blood pressure measurement using pulse oximetry
First Claim
Patent Images
1. A system, comprising:
- a sensor configured to acquire photoplethysmography data and generate a signal relating to the photoplethysmography data, wherein the sensor comprises a flexible, bandage-type sensor body;
a blood pressure cuff configured to be coupled to a pressure transducer, wherein the sensor is removably coupled to a tissue-contacting surface of the blood pressure cuff; and
a monitor comprising a processor configured to;
receive a blood pressure signal from the pressure transducer;
receive the signal relating to the photoplethysmography data from the sensor; and
determine a systolic pressure of a patient based on both the blood pressure signal and the signal.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments of the present disclosure relate to a system and method for determining a physiologic parameter of a patient. Specifically, embodiments provided herein include blood pressure cuffs that are adapted to be used in conjunction with a photoplethysmography sensor. The cuff as provided may be configured to be placed over the sensor and/or aligned in a specific manner relative to the sensor. Alternatively, the cuffs may include integral optical components.
131 Citations
20 Claims
-
1. A system, comprising:
-
a sensor configured to acquire photoplethysmography data and generate a signal relating to the photoplethysmography data, wherein the sensor comprises a flexible, bandage-type sensor body; a blood pressure cuff configured to be coupled to a pressure transducer, wherein the sensor is removably coupled to a tissue-contacting surface of the blood pressure cuff; and a monitor comprising a processor configured to; receive a blood pressure signal from the pressure transducer; receive the signal relating to the photoplethysmography data from the sensor; and determine a systolic pressure of a patient based on both the blood pressure signal and the signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A patient monitoring system, comprising:
-
a sensor configured to acquire photoplethysmography data and generate one or more signals relating to the photoplethysmography data; a blood pressure cuff configured to be coupled to a pressure transducer, wherein the sensor is removably disposed on a tissue-contacting surface of the blood pressure cuff; and a monitor comprising a processor configured to; receive the one or more signals from the sensor; and determine a systolic pressure of a patient based on a first appearance of a plethysmographic waveform in the one or more signals received from the sensor. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. A method, comprising:
-
inflating the blood pressure cuff to pressures greater than a systolic pressure; deflating the blood pressure cuff in a substantially linear manner; receiving a signal from a disposable photoplethysmography sensor removably coupled on a tissue-contacting surface of a blood pressure cuff; receiving a signal from a pressure transducer coupled to the blood pressure cuff; determining a pressure in the blood pressure cuff at a first appearance of a plethysmographic waveform in the signal from the sensor during the linear deflation of the blood pressure cuff, wherein the pressure correlates to the systolic pressure; and deflating the blood pressure cuff in a stepwise manner after determining the pressure correlating to the systolic pressure. - View Dependent Claims (19, 20)
-
Specification