GB2626891A - Dual mode non-invasive blood pressure measurement - Google Patents
Dual mode non-invasive blood pressure measurement Download PDFInfo
- Publication number
- GB2626891A GB2626891A GB2407093.0A GB202407093A GB2626891A GB 2626891 A GB2626891 A GB 2626891A GB 202407093 A GB202407093 A GB 202407093A GB 2626891 A GB2626891 A GB 2626891A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cuff
- hose
- valve
- controller
- blood pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02141—Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0235—Valves specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2503/00—Evaluating a particular growth phase or type of persons or animals
- A61B2503/04—Babies, e.g. for SIDS detection
- A61B2503/045—Newborns, e.g. premature baby monitoring
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/04—Constructional details of apparatus
- A61B2560/0443—Modular apparatus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/02233—Occluders specially adapted therefor
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physiology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Ophthalmology & Optometry (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The present specification describes methods and systems for on-inflate non-invasive blood pressure (NIBP) measurement suitable for cuffs of various sizes. In embodiments, an adapter hose connecting the cuff to the NIBP device is dynamically identified. Embodiments provide a restriction in at least one of the valves in the NIBP device to enable a controlled release of air from the device during the cuff inflation process.
Claims (30)
1. A blood pressure monitoring system, comprising: a housing; a controller located within the housing; a pump located within the housing, wherein the pump is in electrical communication with the controller and wherein the controller is configured to activate the pump and deactivate the pump; a pressure sensor and analysis system located within the housing, wherein the pressure sensor and analysis system is in data communication with the controller; a first hose defined by a first inner diameter; a first cuff configured to connect to the first hose; a second hose defined by a second inner diameter; a second cuff configured to connect to the second hose; a cuff connector adapted to be coupled to the first hose or the second hose; and at least two valves positioned within the housing, wherein a first valve of the at least two valves is configured to enable a first air flow rate and a second valve of the at least two valves is configured to enable a second air flow rate, wherein the controller is adapted to operate at least one or both of the first and second valves based on whether the cuff connector is coupled to the first hose and the first cuff or the cuff connector is coupled to the second hose and the second cuff.
2. The blood pressure monitoring system of claim 1, wherein the first inner diameter of the first hose is greater than the second inner diameter of the second hose.
3. The blood pressure monitoring system of claim 1 , wherein the cuff connector is coupled to the first hose or the second hose through at least one adapter.
4. The blood pressure monitoring system of claim 1 wherein the first cuff is configured to fit around a limb of an adult patient or a pediatric patient.
5. The blood pressure monitoring system of claim 1 wherein the second cuff is configured to fit around a limb of a neonate patient.
6. The blood pressure monitoring system of claim 1 wherein at least one of the first cuff or the second cuff is configured to wrap around a limb of a patient and wherein at least one of the first cuff or the second cuff is in air flow communication with the pump and configured to receive air when the pump is activated by the controller.
7. The blood pressure monitoring system of claim 1 wherein the first valve and the second valve are identical, and wherein a restrictor is configured to restrict air flow in the flow path of the first valve.
8. The blood pressure monitoring system of claim 1 wherein the first valve is smaller than the second valve so that air flow through the first valve is restricted compared to air flow through the second valve.
9. The blood pressure monitoring system of claim 5 wherein, during a deflation of the second cuff, the controller is configured to cause the first valve to be open for at least a portion of said deflation.
10. The blood pressure monitoring system of claim 5 wherein, during a deflation of the second cuff, the controller is configured to cause the first valve and the second valve to be open for at least a portion of said deflation.
11. The blood pressure monitoring system of claim 1 wherein the cuff connector comprises a female rectus connector.
12. The blood pressure monitoring system of claim 1 further comprising a monitor to display information about at least one of a blood pressure measurement, a status of the first hose connected to the first cuff, a status of the second hose connected to the second cuff, a status of the first cuff or the second cuff being coupled to the cuff connector, and/or whether an adapter is attached to the cuff connector.
13. A method of determining a blood pressure of a patient using a non-invasive blood pressure (NIBP) device, wherein the NIBP device comprises a controller positioned within a housing, a cuff connector, a first hose having a first inner diameter, adapted to be connected to a first cuff and configured to be coupled to the cuff connector, a second hose having a second inner diameter, adapted to be connected to a second cuff and configured to be coupled to the cuff connector, a pump in fluid communication with the cuff connector, and at least two valves where a first valve of the at least two valves is configured to enable a first air flow rate in an open configuration and a second valve of the at least two valves is configured to enable a second air flow rate in an open configuration, wherein the first air flow rate is lower than the second air flow rate, the method comprising: coupling at least one of the first cuff or the second cuff to the cuff connector; applying the first cuff or the second cuff to a limb of a person; operating the controller to determine whether the cuff connector is coupled to the first cuff or the second cuff; operating the controller to activate the pump, wherein, upon activation, the pump directs air into the first cuff or the second cuff positioned on the limb of the person; and operating the controller to open and/or close the first valve and/or the second valve based on whether the first cuff or the second cuff is coupled to the cuff connector and based on whether the controller is causing the first cuff to inflate or deflate or the second cuff to inflate or deflate.
14. The method of claim 13, further comprising operating the controller to determine if the first hose is connected to the first cuff or if the second hose is connected to the second cuff.
15. The method of claim 13, wherein the first inner diameter of the first hose is greater than the second inner diameter of the second hose.
16. The method of claim 13, wherein the cuff connector is coupled to the first hose or the second hose through at least one adapter.
17. The method of claim 13, wherein the first cuff is configured to fit around a limb of an adult patient or a pediatric patient and wherein the second cuff is configured to fit around a limb of a neonate patient.
18. The method of claim 17, wherein, during an inflation of the first cuff, wherein the first cuff is fit around the limb of the adult patient, the controller is configured to cause the first valve and the second valve to be closed during said inflation.
19. The method of claim 17, wherein when the determining the blood pressure is performed during an inflation of the first cuff, wherein the first cuff is fit around the limb of the pediatric patient, the controller is configured to cause the first valve to be at least partially open and the second valve to be closed during said inflation.
20. The method of claim 17, wherein when the determining the blood pressure is performed during a deflation of the second cuff, the controller is configured to cause the first valve to be opened at least during a portion of said deflation.
21. The method of claim 17, wherein when the determining the blood pressure is performed during a deflation of the first cuff, the controller is configured to cause the first valve and the second valve to be opened.
22. The method of claim 13, further comprising detecting pressure oscillations in the first cuff or the second cuff during one of the inflation or the deflation of the first cuff or the second cuff to determine a blood pressure of the person.
23. The method of claim 13, further comprising, when the controller is causing the first cuff to inflate or the second cuff to inflate, identifying an anomaly and using the controller to cause at least one of the first valve or the second valve to close during a step-deflation process.
24. The method of claim 14, wherein operating the controller to determine if the first cuff is coupled to the cuff connector or the second cuff is coupled to the cuff connector comprises: opening the first valve; operating the pump for a first period of time; measuring a first amplitude of an air pressure pulse generated by the operating the pump after the first period of time; operating the pump for a second period of time; measuring a second amplitude of an air pressure pulse generated by the operating the pump after the second period of time; calculating a function of the first amplitude and the second amplitude; determining, based on an output of the function, at least one of whether at least one of the first hose or the second hose is coupled to the cuff connector, whether at least one of the first hose or the second hose is kinked, whether the first hose is connected to the first cuff, or whether the second hose is connected to the second cuff.
25. The method of claim 24, wherein the function is an average of the first amplitude and the second amplitude.
26. The method of claim 24, wherein each of the first time period and the second time period ranges from 10 milliseconds to 100 milliseconds and is preferably 50 milliseconds.
27. The method of claim 24, further comprising a time gap between the first period of time and the second period of time.
28. The method of claim 24, wherein operating the pump comprises operating at a duty cycle in a range equal to 90% to 100%.
29. The method of claim 24, wherein determining if the first hose is connected to the first cuff or if the second hose is connected to the second cuff comprises: opening the first valve and the second valve for the first time period; operating the pump at a duty cycle in a range of 30% to 50% after the first time period; measuring the first amplitude; determining, based on the first amplitude, at least one of whether the first hose is connected to the first cuff or whether the second hose is connected to the second cuff.
30. The method of claim 29, wherein the determining comprises concluding that the first hose is connected to the first cuff if the amplitude has a first value or the second hose is connected to the second cuff if the amplitude has a second value, wherein the first value is less than the second value.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2022/013162 WO2023140850A1 (en) | 2022-01-20 | 2022-01-20 | Dual mode non-invasive blood pressure measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB202407093D0 GB202407093D0 (en) | 2024-07-03 |
| GB2626891A true GB2626891A (en) | 2024-08-07 |
Family
ID=87349079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2407093.0A Pending GB2626891A (en) | 2022-01-20 | 2022-01-20 | Dual mode non-invasive blood pressure measurement |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP4465879A4 (en) |
| JP (1) | JP2025502915A (en) |
| KR (1) | KR20240132256A (en) |
| CN (1) | CN118555931A (en) |
| CA (1) | CA3238639A1 (en) |
| GB (1) | GB2626891A (en) |
| MX (1) | MX2024006061A (en) |
| WO (1) | WO2023140850A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5337751A (en) * | 1991-09-30 | 1994-08-16 | Siemens Medical Electronics, Inc. | Air flow control apparatus and method for an automatic blood pressure gauge |
| US20090105599A1 (en) * | 2007-10-19 | 2009-04-23 | Welch Allyn, Inc. | Dual lumen interchangeable monitor system |
| US20100106029A1 (en) * | 2007-03-28 | 2010-04-29 | Kaz, Incorporated | Arterial blood pressure monitor with a liquid filled cuff |
| US20160120420A1 (en) * | 2014-10-30 | 2016-05-05 | David A. Liedl | Vascular measurement system |
| US20190357782A1 (en) * | 2017-02-16 | 2019-11-28 | Omron Healthcare Co., Ltd. | Blood pressure information measuring device |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59197238A (en) * | 1983-04-25 | 1984-11-08 | 株式会社日本コ−リン | Automatic hemomanometer apparatus |
| JPS6211431A (en) * | 1985-07-08 | 1987-01-20 | コーリン電子株式会社 | Method and apparatus for discriminating kind of cuff |
| US5022403A (en) * | 1987-03-11 | 1991-06-11 | Cas Medical Systems, Inc. | Automatic blood pressure measuring device and method with cuff size determination |
| US5240008A (en) * | 1991-09-30 | 1993-08-31 | Siemens Medical Electronics, Inc. | Inflation control apparatus for an automatic blood pressure gauge |
| US5464019A (en) * | 1992-08-11 | 1995-11-07 | Spacelabs, Inc. | Airflow control manifold for automatic blood pressure monitoring device |
| DE4331450C2 (en) * | 1993-09-16 | 1998-02-05 | Hewlett Packard Gmbh | Arrangement for automatic blood pressure measurement |
| JP3004034U (en) * | 1994-05-10 | 1994-11-08 | コ−ケンメディカル株式会社 | Emergency compression type hemostatic trousers |
| JP3726650B2 (en) * | 2000-07-26 | 2005-12-14 | 松下電工株式会社 | Sphygmomanometer |
| JP2005261820A (en) * | 2004-03-22 | 2005-09-29 | Fukuda Denshi Co Ltd | Cuff type discrimination method and non-invasive blood pressure measuring device |
| JP4673021B2 (en) * | 2004-09-10 | 2011-04-20 | テルモ株式会社 | Sphygmomanometer |
| US20090099466A1 (en) * | 2007-10-16 | 2009-04-16 | General Electric Company | Method and system for automatic cuff type determination |
| JP5536586B2 (en) * | 2010-08-17 | 2014-07-02 | 日本光電工業株式会社 | Blood pressure measuring device |
| JP5864118B2 (en) * | 2011-03-29 | 2016-02-17 | フクダ電子株式会社 | Sphygmomanometer |
| JP2012210363A (en) * | 2011-03-31 | 2012-11-01 | Terumo Corp | Limb compression device |
| US20130015654A1 (en) * | 2011-07-11 | 2013-01-17 | Jeffrey Jay Gilham | Air-Tight Push-In and Pull-Out Connector System with Positive Latching |
-
2022
- 2022-01-20 KR KR1020247019691A patent/KR20240132256A/en active Pending
- 2022-01-20 WO PCT/US2022/013162 patent/WO2023140850A1/en not_active Ceased
- 2022-01-20 GB GB2407093.0A patent/GB2626891A/en active Pending
- 2022-01-20 CA CA3238639A patent/CA3238639A1/en active Pending
- 2022-01-20 MX MX2024006061A patent/MX2024006061A/en unknown
- 2022-01-20 JP JP2024529809A patent/JP2025502915A/en active Pending
- 2022-01-20 CN CN202280089132.9A patent/CN118555931A/en active Pending
- 2022-01-20 EP EP22922439.9A patent/EP4465879A4/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5337751A (en) * | 1991-09-30 | 1994-08-16 | Siemens Medical Electronics, Inc. | Air flow control apparatus and method for an automatic blood pressure gauge |
| US20100106029A1 (en) * | 2007-03-28 | 2010-04-29 | Kaz, Incorporated | Arterial blood pressure monitor with a liquid filled cuff |
| US20090105599A1 (en) * | 2007-10-19 | 2009-04-23 | Welch Allyn, Inc. | Dual lumen interchangeable monitor system |
| US20160120420A1 (en) * | 2014-10-30 | 2016-05-05 | David A. Liedl | Vascular measurement system |
| US20190357782A1 (en) * | 2017-02-16 | 2019-11-28 | Omron Healthcare Co., Ltd. | Blood pressure information measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4465879A4 (en) | 2025-09-24 |
| WO2023140850A1 (en) | 2023-07-27 |
| EP4465879A1 (en) | 2024-11-27 |
| CN118555931A (en) | 2024-08-27 |
| JP2025502915A (en) | 2025-01-30 |
| KR20240132256A (en) | 2024-09-03 |
| GB202407093D0 (en) | 2024-07-03 |
| CA3238639A1 (en) | 2023-07-27 |
| MX2024006061A (en) | 2024-07-31 |
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| Date | Code | Title | Description |
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| REG | Reference to a national code |
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