SYSTEMS AND METHODS FOR TIMING MEASUREMENTS IN A NON-INVASIVE BLOOD PRESSURE MEASUREMENT SYSTEM

• US 20150272454A1
• Filed: 03/04/2015
• Published: 10/01/2015
• Est. Priority Date: 03/25/2014
• Status: Active Grant

• Current Assignee: Dragerwerk AG & Company KGaA (FPS Vermögensverwaltung GmbH)
• Original Assignee: Draeger Medical Systems Incorporated (Dragerwerk AG)
• Inventors: Damiano, Evan
• Granted Patent: US 10,307,068 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 5/02225 using the oscillometric method
• CPC Class Codes: A61B 5/0235 Valves specially adapted therefor
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 40/63 for local operation

Abstract

Disclosed are systems and methods for timing measurements in a non-invasive blood pressure measurement system. The systems and methods are capable of providing measurement results according to patient-specific time intervals. The disclosed systems may include a pump unit, signal acquisition circuit, user interface, clock, memory, microprocessor, power unit and communications module. The disclosed invention also contains a method for calculating an expected measurement duration. Additionally systems and methods for providing blood pressure results according to patient-specific time intervals using an expected measurement duration are discussed. Related apparatus, systems, methods and or/articles are described.

Claims

1. A non-invasive blood pressure measurement system comprising:

a pump unit capable of acquiring a cuff pressure signal using an inflatable cuff;

a signal acquisition circuit capable of generating an oscillometric signal from the cuff pressure signal;

a microprocessor operatively coupled to the pump unit and the signal acquisition circuit;

wherein the microprocessor computes a blood pressure measurement from the oscillometric signal at a patient-specific time interval based on an expected measurement duration.

2. The system of claim 1, further comprising a memory capable of storing the cuff pressure signal, the oscillometric signal, the patient-specific time interval, a buffer and the expected measurement duration, wherein the memory is operatively coupled to the microprocessor.

3. The system of claim 2, further comprising the microprocessor calculating the expected measurement duration based on information from the memory.

4. The system of claim 1, further comprising a clock capable of measuring and providing time, wherein the clock is operatively coupled to the microprocessor.

5. The system of claim 1, wherein the cuff pressure signal and the oscillometric signal are obtained using a non-invasive blood pressure (NIBP) measurement method.

6. The system of claim 1, further comprising a user interface capable of receiving the patient-specific time interval, wherein the patient-specific time interval comprises a time difference between consecutive blood pressure measurements.

7. The system of claim 1, further comprising the microprocessor capable of converting the patient-specific time interval into a unit of time corresponding to that used by the clock.

8. The system of claim 1, further comprising a communication module capable of receiving and transmitting wireless signals and wired signals.

9. The system of claim 1, further comprising a communication module capable of transmitting information stored in the memory to a remote database and a monitoring station.

10. The system of claim 1, wherein the system is a stationary blood pressure monitoring system.

11. The system of claim 1, wherein the system is an ambulatory blood pressure monitoring system.

12. The system of claim 1, wherein a blood pressure measurement comprises at least one of a systolic pressure, a diastolic pressure and a mean arterial blood pressure.

13. The system of claim 1, further comprising a power unit capable of providing power to the system using at least one of a battery and a connection to a wall AC unit.

14. The system of claim 1, wherein the pump unit comprises at least one of a pressure transducer, an air pressure source, a one or more air ducts, at least one deflate valve, at least one inflate valve and an exhaust.

15. A patient monitoring system comprising:

a patient monitor capable of receiving and displaying physiological parameters; and

a non-invasive blood pressure measurement system comprising;

a pump unit capable of acquiring a cuff pressure signal using an inflatable cuff;

a signal acquisition circuit capable of generating an oscillometric signal from the cuff pressure signal;

a microprocessor operatively coupled to the pump unit and the signal acquisition circuit;

wherein the microprocessor computes a blood pressure measurement from the oscillometric signal at a patient-specific time interval based on an expected measurement duration.

16. The system of claim 15, wherein the non-invasive blood pressure measurement system further comprises a memory operatively coupled to the microprocessor and capable of storing the cuff pressure signal, the oscillometric signal, the patient-specific time interval, a buffer and the expected measurement duration.

17. The system of claim 16, further comprising the microprocessor calculating the expected measurement duration based on information from the memory.

18. The system of claim 15, further comprising a communication module capable of transmitting information stored in the memory to a remote database and a monitoring station.

19. A method for obtaining measurements at patient-specific times in an oscillometric blood pressure monitoring system, comprising:

receiving from a user a patient-specific time interval for obtaining measurement results;

obtaining an expected measurement duration;

calculating a pre-start time;

sending a signal to start a non-invasive blood pressure (NIBP) measurement at said pre-start time.

20. The method of claim 19, wherein a pre-start time corresponds to the difference of a time designated by the patient-specific time interval and the expected measurement duration.