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WO2025202865A1 - Transfert et affichage de données de visualisation de la respiration - Google Patents

Transfert et affichage de données de visualisation de la respiration

Info

Publication number
WO2025202865A1
WO2025202865A1 PCT/IB2025/053088 IB2025053088W WO2025202865A1 WO 2025202865 A1 WO2025202865 A1 WO 2025202865A1 IB 2025053088 W IB2025053088 W IB 2025053088W WO 2025202865 A1 WO2025202865 A1 WO 2025202865A1
Authority
WO
WIPO (PCT)
Prior art keywords
breathing
visualization
patient
respiratory
patch
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
Application number
PCT/IB2025/053088
Other languages
English (en)
Inventor
Paul S. Addison
Dean Montgomery
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Covidien LP
Original Assignee
Covidien LP
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Covidien LP filed Critical Covidien LP
Publication of WO2025202865A1 publication Critical patent/WO2025202865A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Measuring devices for evaluating the respiratory organs
    • A61B5/0816—Measuring devices for examining respiratory frequency
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient; User input means
    • A61B5/742—Details of notification to user or communication with user or patient; User input means using visual displays
    • A61B5/743—Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots

Definitions

  • Implementations described herein disclose a method including determining, based on an image signal received from a camera focused on at least a portion of a patient, a respiratory parameter representing a breathing rate of the patient, communicating the respiratory parameter to a display apparatus, modulating a breathing visualization patch based on the respiratory parameter, and displaying the modulated breathing visualization patch.
  • FIG. 1 illustrates an example implementation of a system for transferring and displaying of breathing visualization data as disclosed herein.
  • FIGS. 2A and 2B illustrate example image displayed using the system for transferring and displaying of breathing visualization data as disclosed herein.
  • FIG. 5 illustrates alternative example operations of the system for transferring and displaying of breathing visualization data as disclosed herein.
  • FIG. 6 shows a portable non-contact subject monitoring system that includes a non-contact detector and a computing device.
  • FIG. 7 shows a semi-portable non-contact subject monitoring system that includes a non-contact detector and a computing device.
  • FIG. 8 shows a non-portable non-contact subject monitoring system that includes a non-contact detector and a computing device.
  • FIG. 9 is a block diagram illustrating a system including a computing device, a server, and an image capture device.
  • Respiratory rate is one of the common vital signs that is measured in clinical settings. RR may be indicated as the number of breaths by a patient over a time period, such as number of breaths per minute.
  • the levels of RR provide information about the health of patients. Similarly, any significant change in the levels of RR are often early indicators of major health complications such as respiratory tract infections, respiratory depression associated with opioid consumption, anesthesia and/or sedation, as well as respiratory failure. [0018] Therefore, it is important for healthcare providers to have proper visualization of the breathing by the patients. Specifically, even while a patient is in their room, it is useful to communicate the images and or videos of the patient’s breathing to various locations throughout hospital or healthcare facilities.
  • a respiratory waveform may be part of the breathing visualization information communicated over the network.
  • the receiving device such as a computer on wheels, may reconstruct a breathing visualization patch on a representation of a patient for display.
  • the receiving device may modulate a size of the breathing visualization based on amplitude of the respiratory waveform at given instance.
  • the size of the breathing visualization is higher and on the other hand, when the respiratory waveform is at trough, the size of the breathing visualization is lower.
  • intensity or color of the breathing visualization based on amplitude of the respiratory waveform.
  • the phase of the respiratory waveform may be used to modulate the size, the color, the intensity, or some other display parameter of the breathing visualization.
  • the breathing visualization image is downsized to remove high-frequency features that are less important or that are not visually discernable to the user.
  • the compressed or downsized version of the breathing visualization image may also be sent only intermittently, such as every Is, 10s, 60s, etc.
  • the breathing visualization system evaluates the breathing visualization image intermittently to determine if there are any significant changes to the breathing visualization image and communicates the binarized version of the breathing visualization image only when there is a significant change. For example, if the size of the breathing visualization image increases or decreases over, say 10%, the binarized version of the breathing visualization image is re-communicated. Alternatively, the binarized version of the breathing visualization image is re-communicated if the rate of change of the volume of the patient’s breathing signal is above a threshold.
  • FIG. 1 illustrates a non-contact subject monitoring system 100 for a patient 102.
  • the system 100 includes a non-contact detector system 110 placed remote from the patient 102.
  • the detector system 110 includes a camera system 114, particularly, a camera that may include an infrared (IR) detection feature.
  • the camera system 114 may be a depth sensing camera system, such as a Kinect camera from Microsoft Corp. (Redmond, Washington) or a RealSenseTM D415, D435 or D455 camera from Intel Corp. (Santa Clara, California).
  • the memory 126 may also store a breathing visualization system 136 that is configured to process the depth image data stream 132 and/or the breathing signal 134 to generate various breathing visualization information 140 that can be communicated over a network.
  • the breathing visualization system 136 may include various programs and algorithms that can be processed on the processor 124 to generate the breathing visualization information 140.
  • the breathing visualization information 140 may be low-bandwidth information such that it can be communicated over a network while utilizing lower amount of network bandwidth.
  • the breathing visualization information 140 may include various respiratory rate (RR) parameters 142 including patient’s RR, patient’s inhalation exhalation (I: E) ratio, etc.
  • RR respiratory rate
  • I: E inhalation exhalation
  • the breathing visualization information 140 may also include a respiratory waveform 144 of the patient.
  • the respiratory waveform 144 may be a graphical description of the breathing by the patient that depicts the volume of breath inhaled and exhaled by the patient over time.
  • the RR parameters 142 and/or the respiratory waveform 144 are communicated to a display device 150 that uses this information to reconstruct a breathing visualization patch 168.
  • the display device 150 may be a computing device, such as a computer on wheels, a computing device used in a central nursing room, a mobile device used by a physician, a nurse, etc.
  • the display device 150 may include memory 152, a processor 154, and a display 160.
  • the memory 152 may include various computer programs and/or instructions to receive the breathing visualization information 140 and reconstruct the breathing visualization patch 168 that is displayed on an image 162 of a patient.
  • the display 160 may display the image 162 of the patient, a respiratory waveform 164, and a RR 166.
  • the breathing visualization patch 168, constructed using the breathing visualization information 140 may be displayed on a torso of the image 162 of the patient.
  • one or more display parameters of the breathing visualization patch 168 may be modulated based on the RR parameters such as the RR and the I:E ratio. For example, if the RR indicates that the patient takes ten breaths per minute giving each breath an average of six seconds with the EE ratio of 2: 1, on average each breath has four seconds of inhalation and two seconds of exhalation. In this case, the display device 150 may modulate the breathing visualization patch 168 for the four seconds of inhalation period with a green color and the two seconds of exhalation period with red color. Reconstructing the breathing visualization patch 168 modulated using the RR and the EE ratio allows the display device 150 to provide a realistic visualization of the breathing by the patient even when only the RR and the EE ratio, which requires substantially low communication bandwidth, are communicated over the network.
  • the breathing visualization image 146 is downsized to remove high-frequency features that are less important or that are not visually discernable to the user. Furthermore, the compressed or downsized version of the breathing visualization image 146 may also be sent only intermittently, such as every Is, 10s, 60s, etc. In one implementation, the breathing visualization system 136 evaluates the breathing visualization image 146 intermittently to determine if there are any significant changes to the breathing visualization image 146 and communicates the binarized version of the breathing visualization image 146 only when there is a significant change. For example, if the size of the breathing visualization image 146 increases or decreases over, say 10%, the binarized version of the breathing visualization image 146 is re-communicated.
  • the binarized version of the breathing visualization image 146 is recommunicated if the rate of change of the volume of the patient’s breathing signal is above a threshold.
  • the display device 150 may, upon receiving the binarized version of the breathing visualization image 146, reconstruct the breathing visualization patch 168 and display it on torso of the image 162 of the patient.
  • the breathing visualization patch 204B illustrated in FIG. 2B is at time 208B.
  • the amplitude of breathing volume as indicated by the respiratory waveform 206B at time 208B is higher and therefore, the intensity of the breathing visualization patch 204B for the patient image 10 IB is higher.
  • the varying intensities of the breathing visualization patches 204A and 204B are illustrated by the darker shade of the breathing visualization patch 204B compared to the lighter shade of the breathing visualization patch 204A.
  • the intensities of the breathing visualization patches 204A and 204B are shown to vary based on amplitude of breathing volume as indicated by the respiratory waveform at given time, in alternative implementation, the color of the breathing visualization patches 204A and 204B may depend on the amplitude of breathing volume as indicated by the respiratory waveform at given time. Yet alternatively, the brightness and/or intensities of the breathing visualization patches 204A and 204B may be varied based on the phase of the respiratory waveform at given time. Thus, when the color of the breathing visualization patches 204A may be green when the phase of the respiratory waveform 206A indicates a positive slope at time 208A.
  • the color of the breathing visualization patches 204B may be red when the phase of the respiratory waveform 206B indicates a negative slope at time 208B.
  • the size of the breathing visualization patches 204A and 204B May also vary based on amplitude or phase of breathing volume as indicated by the respiratory waveforms 206A, 206B at given time.
  • the images 200 illustrated in FIGS. 2A and 2B provide realistic presentations of the breathing by a patient even when only the respiratory waveform 206 (206A and 206B) is communicated over the network to a display device displaying the images 200. This allows low bandwidth communication over the network, while still providing quite realistic presentation of breathing by the patient.
  • An operation 406 constructs a modulated breathing visualization patch using the respiratory waveform and/or the respiratory parameters.
  • the operation 406 may modulate the intensity of the visualization patch based on the amplitude of breathing volume as indicated by the respiratory waveform.
  • the operation 406 may modulate the color of the visualization patch based on the amplitude of breathing volume as indicated by the respiratory waveform.
  • the operation 406 may modulate the intensity of the visualization patch based on value of the I:E ratio.
  • the operation 406 may modulate the intensity of the visualization patch based on value of the RR.
  • an operation 408 superimposes the modulated breathing visualization patch on a representation of a patient and display the superimposed representation on a display device.
  • FIG. 5 illustrates alternative operations 500 of the system for transferring and displaying of breathing visualization data as disclosed herein.
  • an operation 502 generate a representation of a breathing mask based on images received from a depth camera.
  • the breathing mask can represent change in the volume of air in the lungs of a patient based on breath inhalation and exhalation as determined from the image data.
  • such breathing mask may be a two-dimensional representation of the amount of air the lungs, the size of lungs as inflated or deflated based on the inhalation: exhalation, etc.
  • an operation 508 encodes the binarized representation of the breathing mask. For example, such encoding may involve run-length encoding to remove redundant information from the binarized breathing visualization image data.
  • an operation 510 communicates the encoded binarized representation of the breathing mask to display devices over a communication network.
  • One or more display devices such as a mobile device of a physician, may use the encoded binarized representation of the breathing mask to reconstruct a breathing mask patch and superimpose the reconstructed breathing mask patch on a representation image of the patient.
  • An operation 512 displays the representation image of the patient with the reconstructed breathing mask patch superimposed thereon on a display.
  • FIG. 6 shows a portable non-contact subject monitoring system 600 that includes a non-contact detector 610 and a computing device 620.
  • the non-contact detector 610 and the computing device 620 are generally fixed in relation to each other and the system 600 is readily moveable in relation to the subject to be monitored.
  • the detector 610 and the computing device 620 are supported on a trolley or stand 602, with the detector 610 on an arm 604 that is pivotable in relation to the stand 602 as well as adjustable in height.
  • the system 600 can be readily moved and positioned where desired.
  • the detector 610 includes a first camera 614 and a second camera 615, at least one of which includes an infrared (IR) camera feature.
  • the detector 610 also includes an IR projector 616, which projects individual features (e.g., dots, crosses or Xs, lines, or a featureless pattern, or a combination thereof etc.).
  • FIG. 7 shows a semi-portable non-contact subject monitoring system 700 that includes a non-contact detector 710 and a computing device 720.
  • the non-contact detector 710 is in a fixed relation to the subject to be monitored and the computing device 720 is readily moveable in relation to a subject lying on a bed 730.
  • the bed 730 may have a headboard 732, a side rail 734, and a mattress 736.
  • the detector 710 is supported on an arm 701 that is attached to a bed, in this embodiment, a hospital bed, although the detector 710 and the arm 701 can be attached to a crib, a bassinette, an incubator, an isolette, or other bed-type structure.
  • the arm 701 is pivotable in relation to the bed as well as adjustable in height to provide for proper positioning of the detector 710 in relation to the subject.
  • the detector 710 may be wired or wireless connected to the computing device 720, which is supported on a moveable trolley or stand 702.
  • the computing device 720 includes a housing 721 with a touch screen display 722, a processor (not seen), and hardware memory (not seen) for storing software and computer instructions.
  • FIG. 8 shows a non-portable non-contact subject monitoring system 800 that includes a non-contact detector 810 and a computing device (not seen in FIG. 8).
  • at least the non-contact detector 810 is generally fixed in a location, configured to have the subject to be monitored moved into the appropriate position to be monitored.
  • the detector 810 is supported on a stand 801 that is free standing, the stand having a base 803, a frame 805, and a gantry 807.
  • the gantry 807 may have an adjustable height, e.g., movable vertically along the frame 805, and may be pivotable, extendible and/or retractable in relation to the frame 805.
  • the stand 801 is shaped and sized to allow a bed or bed-type structure to be moved (e.g., rolled) under the detector 810.
  • FIG. 9 is a block diagram illustrating a system including a computing device 900, a server 925, and an image capture device 985 (e.g., a camera, e.g., the camera system 114).
  • an image capture device 985 e.g., a camera, e.g., the camera system 114.
  • a camera e.g., the camera system 114.
  • fewer, additional and/or different components may be used in the system.
  • the processor 915 may also or alternately receive inputs through the interface/display 910.
  • the processor 915 is also coupled to a transceiver 920.
  • the processor 915, and subsequently the computing device 900 can communicate with other devices, such as the server 925 through a connection 970 and the image capture device 985 through a connection 980.
  • the computing device 900 may send to the server 925 information determined about a subject from images captured by the image capture device 985, such as depth information of a subject or object in an image.
  • the server 925 also includes a processor 935 that is coupled to a memory 930 and to a transceiver 940.
  • the processor 935 can store and recall data and applications in the memory 930. With this configuration, the processor 935, and subsequently the server 925, can communicate with other devices, such as the computing device 900 through the connection 970.
  • connections 970, 980 may be varied.
  • either or both the connections 970, 980 may be a hard-wired connection.
  • a hard-wired connection may involve connecting the devices through a USB (universal serial bus) port, serial port, parallel port, or other type of wired connection to facilitate the transfer of data and information between a processor of a device and a second processor of a second device.
  • one or both of the connections 970, 980 may be a dock where one device may plug into another device.
  • one or both of the connections 970, 980 may be a wireless connection.
  • connections may be any sort of wireless connection, including, but not limited to, Bluetooth connectivity, Wi-Fi connectivity, infrared, visible light, radio frequency (RF) signals, or other wireless protocols/methods.
  • RF radio frequency
  • other possible modes of wireless communication may include near-field communications, such as passive radio-frequency identification (RFID) and active RFID technologies. RFID and similar near-field communications may allow the various devices to communicate in short range when they are placed proximate to one another.
  • RFID and similar near-field communications may allow the various devices to communicate in short range when they are placed proximate to one another.
  • the various devices may connect through an internet (or other network) connection. That is, one or both of the connections 970, 980 may represent several different computing devices and network components that allow the various devices to communicate through the internet, either through a hard-wired or wireless connection. One or both of the connections 970, 980 may also be a combination of several modes of connection.
  • Examples of such computing devices may include other types of infrared cameras/detectors, night vision cameras/detectors, other types of cameras, radio frequency transmitters/receivers, smart phones, personal computers, servers, laptop computers, tablets, RFID enabled devices, or any combinations of such devices.
  • intangible computer- readable communication signals may embody computer readable instructions, data structures, program modules or other data resident in a modulated data signal, such as a carrier wave or other signal transport mechanism.
  • modulated data signal means a signal that has one or more of its characteristics set or changed in such a manner as to encode information in the signal.
  • intangible communication signals include wired media such as a wired network or direct-wired connection, and wireless media such as acoustic, RF, infrared and other wireless media.
  • the implementations described herein are implemented as logical steps in one or more computer systems.
  • the logical operations may be implemented (1) as a sequence of processor-implemented steps executing in one or more computer systems and (2) as interconnected machine or circuit modules within one or more computer systems.
  • the implementation is a matter of choice, dependent on the performance requirements of the computer system being utilized. Accordingly, the logical operations making up the implementations described herein are referred to variously as operations, steps, objects, or modules.
  • logical operations may be performed in any order, unless explicitly claimed otherwise or a specific order is inherently necessitated by the claim language.
  • Example 2 The method of Example 1, wherein the respiratory parameter is a respiratory rate (RR) of the patient.
  • RR respiratory rate
  • Example 3 The method of Example 1, wherein breathing visualization patch is displayed on a representation of torso of the patient.
  • Example 6 The method of Example 4, wherein modulating the breathing visualization patch further comprising, modulating color of the breathing visualization patch based on an amplitude of a respiratory waveform of the patient.
  • Example 8 The method of Example 2, wherein the respiratory parameter further including an inhalation exhalation (EE) ratio of the patient, and wherein modulating the breathing visualization patch based on the respiratory parameter further comprising modulating intensity of the breathing visualization patch based on the respiratory parameter.
  • Example 9 The method of Example 1, further comprising: generating a representation of a breathing mask for the patient; binarizing the representation of the breathing mask; encoding the representation of the breathing mask; and modulating intensity of the first color and intensity of the second color based on the respiratory parameter.
  • Example 10 Example 10.
  • a system comprising: memory; one or more processor units; a breathing visualization system stored in the memory and executable by the one or more processor units, the breathing visualization system encoding computer-executable instructions on the memory for executing on the one or more processor units a computer process, the computer process comprising: determining, based on an image signal received from a camera focused on at least a portion of a patient, a respiratory parameter representing a breathing rate of the patient; communicating the respiratory parameter to a display apparatus; modulating a breathing visualization patch based on the respiratory parameter; and displaying the modulated breathing visualization patch.
  • Example 11 The system of Example 10, wherein the respiratory parameter is a respiratory rate (RR) of the patient.
  • RR respiratory rate
  • Example 12 The system of Example 10, wherein the computer process further comprising: determining, based on the image signal received from the camera focused on at least a portion of a patient a respiratory waveform of the patient; and communicating the respiratory waveform of the patient to the display apparatus.
  • Example 15 The system of Example 12, wherein modulating the breathing visualization patch further comprising, modulating at least one of color of the breathing visualization patch and brightness of the breathing visualization patch based on a phase of a respiratory waveform of the patient.
  • Example 16 The system of Example 11, wherein the respiratory parameter further including an inhalation exhalation (EE) ratio of the patient, and wherein modulating the breathing visualization patch based on the respiratory parameter further comprising modulating intensity of the breathing visualization patch based on the respiratory parameter.
  • Example 17 The system of Example 11, wherein the respiratory parameter further including an inhalation exhalation (EE) ratio of the patient, and wherein modulating the breathing visualization patch based on the respiratory parameter further comprising modulating intensity of the breathing visualization patch based on the respiratory parameter.
  • Example 18 The physical article of manufacture of Example 17, wherein the computer process comprising: determining, based on the image signal received from the camera focused on at least a portion of a patient a respiratory waveform of the patient; and communicating the respiratory waveform of the patient to the display apparatus.
  • Example 19 The physical article of manufacture of Example 18, wherein the computer process further comprising: modulating brightness of a breathing visualization patch based on an amplitude of a respiratory waveform of the patient; and displaying the breathing visualization patch on a representation of torso of the patient.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physiology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

Des modes de réalisation de la présente invention divulguent un procédé consistant à déterminer, sur la base d'un signal d'image reçu depuis une caméra focalisée sur au moins une partie d'un patient, un paramètre respiratoire représentant une fréquence respiratoire du patient, communiquer le paramètre respiratoire à un appareil d'affichage, moduler une zone de visualisation de la respiration en fonction du paramètre respiratoire, et afficher la zone de visualisation de la respiration modulée.
PCT/IB2025/053088 2024-03-28 2025-03-24 Transfert et affichage de données de visualisation de la respiration Pending WO2025202865A1 (fr)

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US202463571346P 2024-03-28 2024-03-28
US63/571,346 2024-03-28

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US20070050715A1 (en) * 2005-07-26 2007-03-01 Vivometrics, Inc. Computer interfaces including physiologically guided avatars
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US20200046302A1 (en) * 2018-08-09 2020-02-13 Covidien Lp Video-based patient monitoring systems and associated methods for detecting and monitoring breathing
US20200187827A1 (en) * 2018-12-14 2020-06-18 Covidien Lp Depth sensing visualization modes for non-contact monitoring

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