WO2023079368A1 - Blood leakage detection apparatus and method - Google Patents
Blood leakage detection apparatus and method Download PDFInfo
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- WO2023079368A1 WO2023079368A1 PCT/IB2022/000683 IB2022000683W WO2023079368A1 WO 2023079368 A1 WO2023079368 A1 WO 2023079368A1 IB 2022000683 W IB2022000683 W IB 2022000683W WO 2023079368 A1 WO2023079368 A1 WO 2023079368A1
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- blood leakage
- detection apparatus
- leakage detection
- ultra
- radar
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1126—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb using a particular sensing technique
-
- 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 pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/02042—Determining blood loss or bleeding, e.g. during a surgical procedure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/15—Detection of leaks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
Definitions
- the present invention is directed to a blood leakage detection apparatus and method that detect blood leakage using a millimeter-wave radar.
- Blood leakage is one of the fatal accidents in hemodialysis.
- non-contact and robust blood leakage detection techniques are strongly desired.
- Optical sensor can detect blood leakage; however, it often fails to detect when blood leakage occurs under a blanket.
- Another aspect of the present invention is a blood leakage detection method that stores the radar signals of an ultra-wideband millimeter-wave radar system or a microwave radar system, and detect blood leakage.
- FIG. 1 is a schematic diagram of a blood leakage detection apparatus that transmits ultra-wideband millimeter-waves to a subject and detect blood leakage.
- FIG. 3 is a schematic diagram of a blood leakage detection apparatus that employ a filter that eliminate the variation of the radar signal caused by body movement of a subject.
- Blood leakage detection apparatus of the present invention transmits ultra-wideband millimeter-waves and detects blood leakage.
- a blood leakage detection apparatus of the present invention is comprising a microwave radar system which includes at least one transmitting antenna and at least one receiving antenna and is configured to transmit a plurality of microwaves to a subject and receive a plurality of microwaves reflected by the subject; and a controller comprising circuitry configured to convert a plurality of received microwaves to a plurality of radar signals, store the radar signals, and detect blood leakage.
- FIG. 1 shows a schematic diagram of a blood leakage detection apparatus employing an embodiment of the present invention.
- An ultra- wideband millimeter-wave radar system includes at least one transmitting antenna 104 and at least one receiving antenna 106.
- a plurality of ultra-wideband millimeter-waves 108 are transmitted to a subject 100.
- Transmitted ultra- wideband millimeter- waves can be modulated using one of pulse compression techniques, e.g. m-sequence.
- Transmitted ultra-wideband millimeter-waves 108 are reflected at the body surface of the subject 100.
- a plurality of ultra-wideband millimeter-waves reflected by the subject are received by receiving antennas 106.
- a system controller 110 comprising circuitry is configured to convert a plurality of received ultra-wideband millimeter-waves to a plurality of radar signals, store the radar signals 112, and detect blood leakage 114.
- a blood leakage detection apparatus employing an embodiment of the present invention may detect the radar signal reflected from blood spread on the bed under the subject.
- a blood leakage detection apparatus employing an embodiment of the present invention may detect blood leakage from the increase of the radar signal intensity at the position or distance of the bed, including the bed surface, because blood often spread on the bed surface.
- a plurality of ultra-wideband millimeter-waves reflected by the subject are received by receiving antennas 106.
- a system controller 110 comprising circuitry is configured to convert a plurality of received ultra-wideband millimeter-waves to a plurality of radar signals, store the radar signals 112, detect the increase of signal intensity at the position or distance of the bed, and detect blood leakage 200, evaluate the increase rate of signal intensity at the position or distance of the bed 202, and detect blood leakage 114, because the increase and the increase rate of the signal intensity are specific to blood leakage in hemodialysis.
- a blood leakage detection apparatus employing an embodiment of the present invention may detect blood leakage from the decrease and/or decrease rate of the radar signal intensity reflected behind the bed, including the bed surface.
- a blood leakage detection apparatus employing an embodiment of the present invention may apply a filter to the radar signal in order to eliminate the variation of the radar signal caused by body movement of the subject.
- FIG. 3 shows a schematic diagram of a blood leakage detection apparatus employing an embodiment of the present invention.
- An ultra-wideband millimeter-wave radar system includes at least one transmitting antenna 104 and at least one receiving antenna 106.
- a plurality of ultra-wideband millimeter-waves 108 are transmitted to a subject 100.
- Transmitted ultra- wideband millimeter- waves can be modulated using one of pulse compression techniques, e.g. m-sequence.
- Transmitted ultra-wideband millimeter-waves 108 are reflected at the body surface of the subject 100.
- a plurality of ultra-wideband millimeter-waves reflected by the subject are received by receiving antennas 106.
- a system controller 110 comprising circuitry is configured to convert a plurality of received ultra-wideband millimeter-waves to a plurality of radar signals, store the radar signals 112, eliminate the variation of the radar signal caused by body movement by the application of a filter to the radar signals 300, detect the increase of signal intensity at the position or distance of the bed, and detect blood leakage 200, evaluate the increase rate of signal intensity at the position or distance of the bed 202, and detect blood leakage 114.
- a blood leakage detection apparatus employing an embodiment of the present invention may transmit medical condition information to one of health systems and/or emit at least one of warning signals; warning signals include warning sound, warning light, and warning vibration.
- Health systems include national center for infectious diseases, Centers for Disease Control and Prevention, public health agencies at state and local level, private and public hospitals, public safety agencies, healthcare providers, education and youth development organizations, recreation and arts-related organizations, economic and philanthropic organizations, environmental agencies and organizations, and medical doctors.
- a blood leakage detection apparatus employing an embodiment of the present invention may calculate the intensity of radar signals in the region of interest, and/or calculate the maximum intensity of radar signals at each distance among the region of interest, and transmit the data of intensity of radar signals and/or the maximum intensity at each distance to a display monitor and/or displaying algorithm.
- a blood leakage detection apparatus employing an embodiment of the present invention may set the region of interest to the area close to the subject.
- a blood leakage detection method stores the radar signals of an ultra-wideband millimeter-wave radar system or a microwave radar system, and detect blood leakage.
- FIG. 1 shows a schematic diagram of a blood leakage detection apparatus employing an embodiment of the present invention.
- An ultra-wideband millimeterwave radar system includes at least one transmitting antenna 104 and at least one receiving antenna 106.
- a plurality of ultra-wideband millimeter-waves 108 are transmitted to a subject 100.
- Transmitted ultra-wideband millimeter-waves can be modulated using one of pulse compression techniques, e.g. m-sequence.
- Transmitted ultra-wideband millimeter-waves 108 are reflected at the body surface of the subject 100.
- a plurality of ultra-wideband millimeter-waves reflected by the subject are received by receiving antennas 106.
- a system controller 110 comprising circuitry is configured to convert a plurality of received ultra-wideband millimeter- waves to a plurality of radar signals, store the radar signals 112, and detect blood leakage 114.
- FIG. 2 shows a schematic diagram of a blood leakage detection apparatus employing an embodiment of the present invention.
- An ultra-wideband millimeterwave radar system includes at least one transmitting antenna 104 and at least one receiving antenna 106.
- a plurality of ultra-wideband millimeter-waves 108 are transmitted to a subject 100.
- Transmitted ultra-wideband millimeter-waves can be modulated using one of pulse compression techniques, e.g. m-sequence.
- Transmitted ultra-wideband millimeter-waves 108 are reflected at the body surface of the subject 100.
- a plurality of ultra-wideband millimeter-waves reflected by the subject are received by receiving antennas 106.
- a system controller 110 comprising circuitry is configured to convert a plurality of received ultra-wideband millimeter- waves to a plurality of radar signals, store the radar signals 112, detect the increase of signal intensity at the position or distance of the bed, and detect blood leakage 200, evaluate the increase rate of signal intensity at the position or distance of the bed 202, and detect blood leakage 114.
- FIG. 3 shows a schematic diagram of a blood leakage detection apparatus employing an embodiment of the present invention.
- An ultra-wideband millimeter- wave radar system includes at least one transmitting antenna 104 and at least one receiving antenna 106.
- a plurality of ultra-wideband millimeter-waves 108 are transmitted to a subject 100.
- Transmitted ultra-wideband millimeter-waves can be modulated using one of pulse compression techniques, e.g. m-sequence.
- Transmitted ultra-wideband millimeterwaves 108 are reflected at the body surface of the subject 100.
- a plurality of ultra- wideband millimeter-waves reflected by the subject are received by receiving antennas 106.
- a system controller 110 comprising circuitry is configured to convert a plurality of received ultra- wideband millimeter-waves to a plurality of radar signals, store the radar signals 112, eliminate the variation of the radar signal caused by body movement by the application of a filter to the radar signals 300, detect the increase of signal intensity at the position or distance of the bed, and detect blood leakage 200, evaluate the increase rate of signal intensity at the position or distance of the bed 202, and detect blood leakage 114.
Abstract
The present invention aims at a blood leakage detection apparatus, comprising: an ultra- wideband millimeter- wave radar system which includes at least one transmitting antenna and at least one receiving antenna and is configured to transmit a plurality of ultra-wideband millimeter-waves to a subject and receive a plurality of ultra-wideband millimeter- waves reflected by the subject; and a controller comprising circuitry configured to convert a plurality of received ultra-wideband millimeter- waves to a plurality of radar signals, store the radar signals, and detect blood leakage. Another aspect of the present invention is a blood leakage detection method that stores the radar signals of an ultra- wideband millimeter- wave radar system or a microwave radar system, and detect blood leakage.
Description
TITLE OF THE INVENTION
BLOOD LEAKAGE DETECTION APPARATUS AND METHOD
CROSS-REFERENCE TO RELATED APPLICATIONS
The present application is based upon and claims the benefits of priority to U.S. Provisional Application No. 63/274,950, filed November 3, 2021. The entire contents of all of the above applications are incorporated herein by reference.
TECHNICAL FIELD
The present invention is directed to a blood leakage detection apparatus and method that detect blood leakage using a millimeter-wave radar.
BACKGROUND ART
Blood leakage is one of the fatal accidents in hemodialysis. Several techniques (PL 1, PL 2, NPL 1, NPL 2) have been reported for the detection of blood leakage.
Citation List Patent Literature
PL 1 Rene G. Lamadrid, Blood leak detector, US3900396A.
PL 2 John O’Mahony, et. al., Blood leak detector for extracorporeal treatment system, US6947131B2.
Citation List Non Patent Literature
NPL 1 Yi-Chun Du, et. al., Novel wearable device for blood leakage detection during hemodialysis using an array sensing patch, Sensors, 16(6), 2016. doi:10.3390/sl6060849.
NPL 2 Masahiro Ueda, et. al., Highly sensitive optical sensor system for blood leakage detection, 21(5), 1994. doi:10.1016/0143-8166(94)90050-7.
SUMMARY OF THE INVENTION
Blood leakage is one of the fatal accidents in hemodialysis. For the improvement of safety in hemodialysis without additional work, non-contact and robust blood leakage detection techniques are strongly desired. Optical sensor can detect blood leakage; however, it often fails to detect when blood leakage occurs under a blanket.
To solve the above-mentioned problem, the present invention aims at a blood leakage detection apparatus, comprising: an ultra-wideband millimeter-wave radar system which includes at least one transmitting antenna and at least one receiving antenna and is configured to transmit a plurality of ultra- wideband millimeter- waves to a subject and receive a plurality of ultra- wideband millimeter- waves reflected by the subject; and a controller comprising circuitry configured to convert a plurality of received ultra-wideband millimeter-waves to a plurality of radar signals, store the radar signals, and detect blood leakage.
Another aspect of the present invention is a blood leakage detection method that stores the radar signals of an ultra-wideband millimeter-wave radar system or a microwave radar system, and detect blood leakage.
BRIEF DESCRIPTION OF DRAWINGS
A more complete appreciation of the invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:
FIG. 1 is a schematic diagram of a blood leakage detection apparatus that transmits ultra-wideband millimeter-waves to a subject and detect blood leakage.
FIG. 2 is a schematic diagram of a blood leakage detection apparatus that detect the increase and/or evaluate increase rate of the signal intensity in order to detect blood leakage.
FIG. 3 is a schematic diagram of a blood leakage detection apparatus that employ a filter that eliminate the variation of the radar signal caused by body movement of a subject.
DESCRIPTION OF EMBODIMENTS
The embodiments will now be described with reference to the accompanying drawings, wherein like reference numerals designate corresponding or identical elements throughout the various drawings.
Blood leakage detection apparatus of the present invention according to an embodiment transmits ultra-wideband millimeter-waves and detects blood leakage. A blood leakage detection apparatus of the present invention according to an embodiment is comprising a microwave radar system which includes at least one transmitting antenna and at least one receiving antenna and is configured to transmit a plurality of microwaves to a subject and receive a plurality of microwaves reflected by the subject; and a controller comprising circuitry configured to convert a plurality of received microwaves to a plurality of radar signals, store the radar signals, and detect blood leakage.
A blood leakage detection apparatus employing an embodiment of the present invention can employ an ultra-wideband millimeter-wave radar system. FIG. 1 shows a schematic diagram of a blood leakage detection apparatus employing an embodiment of the present invention. An ultra- wideband millimeter-wave radar system includes at least one transmitting antenna 104 and at least one receiving antenna 106. A plurality of
ultra-wideband millimeter-waves 108 are transmitted to a subject 100. Transmitted ultra- wideband millimeter- waves can be modulated using one of pulse compression techniques, e.g. m-sequence. Transmitted ultra-wideband millimeter-waves 108 are reflected at the body surface of the subject 100. A plurality of ultra-wideband millimeter-waves reflected by the subject are received by receiving antennas 106. A system controller 110 comprising circuitry is configured to convert a plurality of received ultra-wideband millimeter-waves to a plurality of radar signals, store the radar signals 112, and detect blood leakage 114.
A blood leakage detection apparatus employing an embodiment of the present invention may detect the radar signal reflected from blood spread on the bed under the subject.
A blood leakage detection apparatus employing an embodiment of the present invention may detect blood leakage from the increase of the radar signal intensity at the position or distance of the bed, including the bed surface, because blood often spread on the bed surface.
A blood leakage detection apparatus employing an embodiment of the present invention may detect blood leakage from the increase rate of the radar signal intensity at the position or distance of the bed, including bed surface. FIG. 2 shows a schematic diagram of a blood leakage detection apparatus employing an embodiment of the present invention. An ultra-wideband millimeter-wave radar system includes at least one transmitting antenna 104 and at least one receiving antenna 106. A plurality of ultra-wideband millimeter-waves 108 are transmitted to a subject 100. Transmitted ultra- wideband millimeter- waves can be modulated using one of pulse compression techniques, e.g. m-sequence. Transmitted ultra-wideband millimeter-waves 108 are reflected at the body surface of the subject 100. A plurality of ultra-wideband millimeter-waves reflected by the subject are received by receiving antennas 106. A system controller 110 comprising circuitry is configured to convert a plurality of
received ultra-wideband millimeter-waves to a plurality of radar signals, store the radar signals 112, detect the increase of signal intensity at the position or distance of the bed, and detect blood leakage 200, evaluate the increase rate of signal intensity at the position or distance of the bed 202, and detect blood leakage 114, because the increase and the increase rate of the signal intensity are specific to blood leakage in hemodialysis.
A blood leakage detection apparatus employing an embodiment of the present invention may detect blood leakage from the decrease and/or decrease rate of the radar signal intensity reflected behind the bed, including the bed surface.
A blood leakage detection apparatus employing an embodiment of the present invention may apply a filter to the radar signal in order to eliminate the variation of the radar signal caused by body movement of the subject. FIG. 3 shows a schematic diagram of a blood leakage detection apparatus employing an embodiment of the present invention. An ultra-wideband millimeter-wave radar system includes at least one transmitting antenna 104 and at least one receiving antenna 106. A plurality of ultra-wideband millimeter-waves 108 are transmitted to a subject 100. Transmitted ultra- wideband millimeter- waves can be modulated using one of pulse compression techniques, e.g. m-sequence. Transmitted ultra-wideband millimeter-waves 108 are reflected at the body surface of the subject 100. A plurality of ultra-wideband millimeter-waves reflected by the subject are received by receiving antennas 106. A system controller 110 comprising circuitry is configured to convert a plurality of received ultra-wideband millimeter-waves to a plurality of radar signals, store the radar signals 112, eliminate the variation of the radar signal caused by body movement by the application of a filter to the radar signals 300, detect the increase of signal intensity at the position or distance of the bed, and detect blood leakage 200, evaluate the increase rate of signal intensity at the position or distance of the bed 202, and detect blood leakage 114.
A blood leakage detection apparatus employing an embodiment of the present invention may transmit medical condition information to one of health systems and/or emit at least one of warning signals; warning signals include warning sound, warning light, and warning vibration. Health systems include national center for infectious diseases, Centers for Disease Control and Prevention, public health agencies at state and local level, private and public hospitals, public safety agencies, healthcare providers, education and youth development organizations, recreation and arts-related organizations, economic and philanthropic organizations, environmental agencies and organizations, and medical doctors.
A blood leakage detection apparatus employing an embodiment of the present invention may calculate the intensity of radar signals in the region of interest, and/or calculate the maximum intensity of radar signals at each distance among the region of interest, and transmit the data of intensity of radar signals and/or the maximum intensity at each distance to a display monitor and/or displaying algorithm.
A blood leakage detection apparatus employing an embodiment of the present invention may set the region of interest to the area close to the subject.
A blood leakage detection method stores the radar signals of an ultra-wideband millimeter-wave radar system or a microwave radar system, and detect blood leakage.
First Exemplary Embodiment
FIG. 1 shows a schematic diagram of a blood leakage detection apparatus employing an embodiment of the present invention. An ultra-wideband millimeterwave radar system includes at least one transmitting antenna 104 and at least one receiving antenna 106. A plurality of ultra-wideband millimeter-waves 108 are transmitted to a subject 100. Transmitted ultra-wideband millimeter-waves can be modulated using one of pulse compression techniques, e.g. m-sequence. Transmitted ultra-wideband millimeter-waves 108 are reflected at the body surface of the subject 100. A plurality of ultra-wideband millimeter-waves reflected by the subject are
received by receiving antennas 106. A system controller 110 comprising circuitry is configured to convert a plurality of received ultra-wideband millimeter- waves to a plurality of radar signals, store the radar signals 112, and detect blood leakage 114.
Second Exemplary Embodiment
FIG. 2 shows a schematic diagram of a blood leakage detection apparatus employing an embodiment of the present invention. An ultra-wideband millimeterwave radar system includes at least one transmitting antenna 104 and at least one receiving antenna 106. A plurality of ultra-wideband millimeter-waves 108 are transmitted to a subject 100. Transmitted ultra-wideband millimeter-waves can be modulated using one of pulse compression techniques, e.g. m-sequence. Transmitted ultra-wideband millimeter-waves 108 are reflected at the body surface of the subject 100. A plurality of ultra-wideband millimeter-waves reflected by the subject are received by receiving antennas 106. A system controller 110 comprising circuitry is configured to convert a plurality of received ultra-wideband millimeter- waves to a plurality of radar signals, store the radar signals 112, detect the increase of signal intensity at the position or distance of the bed, and detect blood leakage 200, evaluate the increase rate of signal intensity at the position or distance of the bed 202, and detect blood leakage 114.
Third Exemplary Embodiment
FIG. 3 shows a schematic diagram of a blood leakage detection apparatus employing an embodiment of the present invention. An ultra-wideband millimeter- wave radar system includes at least one transmitting antenna 104 and at least one receiving antenna 106. A plurality of ultra-wideband millimeter-waves 108 are transmitted to a subject 100. Transmitted ultra-wideband millimeter-waves can be modulated using one of pulse compression techniques, e.g. m-sequence. Transmitted ultra-wideband millimeterwaves 108 are reflected at the body surface of the subject 100. A plurality of ultra- wideband millimeter-waves reflected by the subject are received by receiving antennas
106. A system controller 110 comprising circuitry is configured to convert a plurality of received ultra- wideband millimeter-waves to a plurality of radar signals, store the radar signals 112, eliminate the variation of the radar signal caused by body movement by the application of a filter to the radar signals 300, detect the increase of signal intensity at the position or distance of the bed, and detect blood leakage 200, evaluate the increase rate of signal intensity at the position or distance of the bed 202, and detect blood leakage 114.
Reference Signs List
100 subject
102 ultra- wideband millimeter- wave radar system
104 transmitting antenna
106 receiving antenna
108 ultra- wideband millimeter- wave
110 system controller
112 data storage block
114 blood leakage detection block
200 detect the increase of signal intensity
202 evaluate the increase rate of signal intensity
300 body movement elimination filter
Obviously, numerous modifications and variations of the present invention are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described herein.
Claims
1. A blood leakage detection apparatus, comprising: a microwave radar system which includes at least one transmitting antenna and at least one receiving antenna and is configured to transmit a plurality of microwaves to a subject and receive a plurality of microwaves reflected by the subject; and a controller comprising circuitry configured to convert a plurality of received microwaves to a plurality of radar signals, store the radar signals, and detect blood leakage.
2. A blood leakage detection apparatus, comprising: an ultra-wideband millimeter-wave radar system which includes at least one transmitting antenna and at least one receiving antenna and is configured to transmit a plurality of ultra-wideband millimeter-waves to a subject and receive a plurality of ultra-wideband millimeter-waves reflected by the subject; and a controller comprising circuitry configured to convert a plurality of received ultra- wideband millimeter- waves to a plurality of radar signals, store the radar signals, and detect blood leakage.
3. The blood leakage detection apparatus according to claim 2, wherein the controller comprising circuitry is fiirther configured to detect the radar signal reflected from blood spread on the bed under the subject.
4. The blood leakage detection apparatus according to claim 2, wherein the controller comprising circuitry is configured to detect blood leakage from the increase of the radar signal intensity at the position or distance of the bed.
5. The blood leakage detection apparatus according to claims 2 and 4, wherein the controller comprising circuitry is configured to detect blood leakage from the increase rate of the radar signal intensity at the position or distance of the bed.
6. The blood leakage detection apparatus according to claim 2, wherein the controller comprising circuitry is configured to detect blood leakage from the decrease and/or decrease rate of the radar signal intensity reflected behind the bed.
7. The blood leakage detection apparatus according to claim 2, wherein the controller comprising circuitry is fiirther configured to apply a filter to the radar signal in order to eliminate the variation of the radar signal caused by body movement.
8. The blood leakage detection apparatus according to claim 2, wherein the controller comprising circuitry is fiirther configured to transmit medical condition information to one of health systems and/or emit at least one of warning signals; warning signals include warning sound, warning light, and warning vibration.
9. The blood leakage detection apparatus according to claim 2, wherein the controller comprising circuitry is fiirther configured to calculate the intensity of radar signals in the region of interest, and/or calculate the maximum intensity of radar signals at each distance among the region of interest, and transmit the data of intensity of radar signals and/or the maximum intensity at each distance to a display monitor and/or displaying algorithm.
11
10. The blood leakage detection apparatus according to claim 2, wherein the controller comprising circuitry is configured to set the region of interest to the area close to the subject.
11. A blood leakage detection method that stores the radar signals of an ultra- wideband millimeter-wave radar system or a microwave radar system, and detect blood leakage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202163274950P | 2021-11-03 | 2021-11-03 | |
| US63/274,950 | 2021-11-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023079368A1 true WO2023079368A1 (en) | 2023-05-11 |
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ID=85036373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2022/000683 WO2023079368A1 (en) | 2021-11-03 | 2022-11-03 | Blood leakage detection apparatus and method |
Country Status (1)
| Country | Link |
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| WO (1) | WO2023079368A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3900396A (en) | 1974-03-22 | 1975-08-19 | Baxter Laboratories Inc | Blood leak detector |
| US6947131B2 (en) | 2002-05-07 | 2005-09-20 | Chf Solutions, Inc. | Blood leak detector for extracorporeal treatment system |
| US20100130873A1 (en) * | 2008-04-03 | 2010-05-27 | Kai Sensors, Inc. | Non-contact physiologic motion sensors and methods for use |
| US20160213303A1 (en) * | 2015-01-22 | 2016-07-28 | Elwha LLC, a limited liability company of the State of Delaware | Devices and methods for remote hydration measurement |
| WO2016195113A1 (en) * | 2015-06-04 | 2016-12-08 | 株式会社Ｃｑ－Ｓネット | Device that detects states by standing-wave radar |
-
2022
- 2022-11-03 WO PCT/IB2022/000683 patent/WO2023079368A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3900396A (en) | 1974-03-22 | 1975-08-19 | Baxter Laboratories Inc | Blood leak detector |
| US6947131B2 (en) | 2002-05-07 | 2005-09-20 | Chf Solutions, Inc. | Blood leak detector for extracorporeal treatment system |
| US20100130873A1 (en) * | 2008-04-03 | 2010-05-27 | Kai Sensors, Inc. | Non-contact physiologic motion sensors and methods for use |
| US20160213303A1 (en) * | 2015-01-22 | 2016-07-28 | Elwha LLC, a limited liability company of the State of Delaware | Devices and methods for remote hydration measurement |
| WO2016195113A1 (en) * | 2015-06-04 | 2016-12-08 | 株式会社Ｃｑ－Ｓネット | Device that detects states by standing-wave radar |
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