VITAL SIGN MONITORING APPARATUSES AND METHODS OF USING SAME

• US 20180042501A1
• Filed: 02/25/2016
• Published: 02/15/2018
• Est. Priority Date: 02/25/2015
• Status: Active Grant

• Current Assignee: BiPS Medical Ltd.
• Original Assignee: Mor Research Applications Ltd. (Clalit Health Services)
• Inventors: ADI, Nimrod, ZOIZNER, Gil, RUBIN, Jonathan
• Granted Patent: US 10,531,802 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 2562/0204 Acoustic sensors
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/02055 Simultaneously evaluating both cardiovascular condition and temperature
• CPC Class Codes: A61B 5/02116 of pulse wave amplitude A61B5/02225 takes precedence
• CPC Class Codes: A61B 5/022 by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
• CPC Class Codes: A61B 5/02225 using the oscillometric method
• CPC Class Codes: A61B 5/02241 of small dimensions, e.g. adapted to fingers
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/0261 using optical means, e.g. infrared light
• CPC Class Codes: A61B 5/0295 using plethysmography, i.e. measuring the variations in the volume of a body part as modified by the circulation of blood therethrough, e.g. impedance plethysmography
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/1124 Determining motor skills
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/6806 Gloves
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/7203 for noise prevention, reduction or removal
• CPC Class Codes: A61B 5/7207 of noise induced by motion artifacts
• CPC Class Codes: A61B 5/7217 : of noise originating from a therapeutic or surgical apparatus, e.g. from a pacemaker
• CPC Class Codes: A61B 5/7246 : using correlation, e.g. template matching or determination of similarity

Abstract

A system for vital sign measuring of a patient, comprising: a first sensor removably attachable with a first body portion of the patient and configured to measure, when in operable position, a vital sign of the patient; at least one additional sensor removably attachable with a second body portion of the patient and configured to measure, when in operable position, a vital sign of the patient; and a processor configured to provide data descriptive of a level of correspondence between measurements of the vital signs provided by the first sensor and the at least one additional sensor.

Claims

1. A system for vital sign measuring of a patient, comprising:

a first sensor removably attachable with a first body portion of the patient and configured to measure, when in operable position, a vital sign of the patient, wherein the first sensor comprises a first plethysmograph removably attachable to a first finger of the patient;

at least one additional sensor removably attachable with a second body portion of the patient and configured to measure, when in operable position, a vital sign of the patient;

a pressure cuff removably attachable to the first finger between the first plethysmograph and a respective ipsilateral palm of the patient;

an inflation device and a deflation device configured to inflate and deflate the pressure cuff, respectively; and

a processor configured to;

(a) command the inflation and deflation devices to inflate and deflate the pressure cuff a plurality of times, to determine diastolic blood pressure, wherein;

the deflation in each of the plurality of times is such that fluid that may have accumulated in extravascular tissue due to inflation is drained back into the intravascular space, and

the diastolic blood pressure is determined to be a pressure to which the pressure cuff was inflated when a jump in the first signal occurs,

(b) determine a level of correspondence between measurements of the vital signs provided by the first sensor and the at least one additional sensor, and

(c) determine the systolic blood pressure of the patient based on a change in the level of correspondence.

2. The system for vital sign measuring according to claim 1,

wherein the at least one additional sensor comprises a second plethysmograph removably attached to a second finger of the patient.

3. The system according to claim 1, wherein the at least one additional sensor is at least one of an accelerometer, a thermometer, a sound meter, and a digital pressure sensor.

5. The system according to claim 1, wherein the processor is located remotely from the patient.

6. The system according to claim 1, wherein signals in the system are communicated wirelessly.

7. The system according to claim 1, wherein the system is configured to be wearable by the patient.

8. The system according to claim 1, wherein at least a portion of the system is configured to be wearable by an attending medical professional.

10. The system according to claim 1, wherein the processor is further configured to determine, from received signals, at least one of:

mean arterial pressure, pulse rate, breathing rate, breathing pattern, hemoglobin oxygen saturation level, motor function, temperature, and cognitive ability of the patient.

11. The system according to claim 1, wherein the level of correspondence is expressed as a correlation.

13. The system according to claim 1, where the inflation device comprises at least one of a pump and a valve.

39. The system according to claim 1, wherein the inflating in each of the plurality of time is to a higher pressure than the inflating before it.

4. (canceled)

9. (canceled)

12. (canceled)

14. A method for vital sign measuring, comprising:

removably attaching a first sensor to be in an operable position to a first body portion of the patient for measuring a vital sign of the patient, wherein the first sensor comprises a first plethysmograph removably attachable to a first finger of the patient;

removably attaching at least one additional sensor to be in an operable position to a second body portion of the patient for measuring a vital sign of the patient;

inflating a pressure cuff attached to the first finger between the first plethysmograph and a respective ipsilateral palm of the patient;

repeating inflating and deflating the pressure cuff a plurality of times to determine diastolic blood pressure, wherein;

the deflating in each of the plurality of times is such that fluid that may have accumulated in extravascular tissue due to inflation is drained back into the intravascular space, and

the diastolic blood pressure is determined to be a pressure to which the pressure cuff was inflated when a jump in the first signal occurs;

determining a level of correspondence between a first signal from the first sensor and a second signal from the second sensor; and

determining the systolic blood pressure of the patient based on a change in the level of correspondence.

15. The method according to claim 14,

wherein the at least one additional sensor comprises a second plethysmograph removably attachable to a second finger of the patient.

16. The method according to claim 14, wherein the at least one additional sensor comprises an accelerometer for detecting motion of the at least a portion of the patient.

17. The method according to claim 14, wherein the determining of the level of correspondence is also between the first and second signals and a signal of a thermometer that assesses vasodilation in response to warming of the first finger of the patient.

18. The method according to claim 14, wherein the determining of the level of correspondence is also between the first and second signals and a signal of a sound meter that measures a sound level of the patient.

21. The method according to claim 14, further comprising using an oscillometric method for determining the systolic blood pressure, the diastolic blood pressure, or both.

40. The method according to claim 14, wherein the inflating in each of the plurality of time is to a higher pressure than the inflating before it.

19-20. -20. (canceled)

22-27. -27. (canceled)

28. A wearable system for vital sign measuring, comprising:

an at least partial glove garment, comprising;

a first finger sleeve, a second finger sleeve, and a palm portion;

a first plethysmograph coupled with the first finger sleeve;

a second plethysmograph coupled with the second finger sleeve;

a pressure cuff coupled with the first finger sleeve between the first plethysmograph and the glove'"'"'s palm portion;

an inflation device and a deflation device each coupled with the garment and configured to inflate and deflate the pressure cuff, respectively; and

a processor configured to;

(a) command the inflation and deflation devices to inflate and deflate the pressure cuff a plurality of times, to determine diastolic blood pressure, wherein;

the deflation in each of the plurality of times is such that fluid that may have accumulated in extravascular tissue due to inflation is drained back into the intravascular space, and

the diastolic blood pressure is determined to be a pressure to which the pressure cuff was inflated when a jump in the first signal occurs,

(b) determine a level of correspondence between measurements of the vital signs provided by the first sensor and the at least one additional sensor, and

(c) determine the systolic blood pressure of the patient based on a change in the level of correspondence.

41. The wearable system according to claim 28, wherein the inflating in each of the plurality of time is to a higher pressure than the inflating before it.

29-38. -38. (canceled)