Assistive capnography device

• US 10,532,174 B2
• Filed: 02/20/2015
• Issued: 01/14/2020
• Est. Priority Date: 02/21/2014
• Status: Active Grant

• Current Assignee: Masimo Corporation
• Original Assignee: Masimo Corporation
• Inventors: Al-Ali, Ammar
• Primary Examiner(s): Ho, Tan-Uyen T
• Assistant Examiner(s): Heffner, Ned T
• Application Number:
  US14/627,500
• Publication Number:
  US 20150238722A1
• Time in Patent Office: 1,789 Days
• CPC Class Codes: A61B 2505/01 Emergency care
• CPC Class Codes: A61B 2560/0443 Modular apparatus
• CPC Class Codes: A61B 5/082 Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath A61B5/083, A61B5/091 take precedence
• CPC Class Codes: A61B 5/0836 Measuring rate of CO2 production
• CPC Class Codes: A61B 5/097 Devices for facilitating collection of breath or for directing breath into or through measuring devices
• CPC Class Codes: A61B 5/4836 Diagnosis combined with treatment in closed-loop systems or methods A61B5/0036 takes precedence
• CPC Class Codes: A61B 5/7445 Display arrangements, e.g. multiple display units
• CPC Class Codes: A61M 16/0003 Accessories therefor, e.g. sensors, vibrators, negative pressure
• CPC Class Codes: A61M 16/0051 with alarm devices
• CPC Class Codes: A61M 16/0084 self-reinflatable by elasticity, e.g. resuscitation squeeze bags
• CPC Class Codes: A61M 16/01 specially adapted for anaesthetising A61M16/104, A61M16/18 take precedence
• CPC Class Codes: A61M 16/021 operated by electrical means A61M16/202 – A61M16/205 take precedence
• CPC Class Codes: A61M 16/04 Tracheal tubes catheters in general A61M25/00
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 16/085 Gas sampling
• CPC Class Codes: A61M 16/1005 with O2 features or with parameter measurement
• CPC Class Codes: A61M 16/208 Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
• CPC Class Codes: A61M 2016/103 the CO2 concentration
• CPC Class Codes: A61M 2205/35 Communication
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2230/432 : partial CO2 pressure (P-CO2)

Abstract

Systems and method for monitoring patient physiological data are presented herein. A gas analyzing measurement head can be provided to sample and analyze respiratory gases of a patient. In one embodiment, the gas analyzing measurement head can read information on an information element of an airway adapter or resuscitation bag. Such information can be used to generate instructions for manual ventilation using the gas analyzing measurement head, airway adapter, and resuscitation bag. Manual ventilation instructions can be displayed on the gas analyzing measurement head or can be transmitted for display on another device, such as a clinician'"'"'s mobile computing device.

Claims

1. A physiological monitoring system comprising:

a respiratory gas measurement device including a processing board;

an airway adapter configured to connect to the respiratory gas measurement device and to direct exhaled respiratory gases of a patient to the respiratory gas measurement device, the airway adapter comprising a first information element configured to store adapter data representing information regarding at least one characteristic of the airway adapter; and

a resuscitation bag configured to connect to the airway adapter and to provide positive pressure ventilation to the patient, the resuscitation bag comprising a second information element configured to store bag data representing information regarding at least one characteristic of the resuscitation bag,

wherein the processing board is configured to;

generate instructions for manual ventilation based on one or both of the adapter data and the bag data, wherein the instructions include an animated sequence and wherein a timing of the animated sequence is configured to vary to provide visual feedback, and

cause output of the instructions for manual ventilation to a user,

wherein the processing board communicates with the first information element to read the adapter data, and

wherein the processing board communicates with the second information element to read the bag data.

2. The physiological monitoring system of claim 1, wherein the adapter data includes one or more of a size, type, manufacturer, or usage of the airway adapter.

3. The physiological monitoring system of claim 1, wherein the bag data includes one or more of a size, volume, manufacturer, or usage of the resuscitation bag.

4. The physiological monitoring system of claim 1, wherein the first information element and the second information element each comprise one or more of a transistor network, memory chip, EPROM, multi-contact single wire memory device, resistor, capacitor, microchip, RAM, ROM, RFID tag, NFC chip, and barcode.

5. The physiological monitoring system of claim 1, wherein the processing board is configured to determine a compression depth for compression of the resuscitation bag based at least partly on the bag data, wherein the instructions for manual ventilation include the compression depth.

6. The physiological monitoring system of claim 1, wherein the processing board is configured to determine age-specific ventilation instructions based at least partly on the adapter data, wherein the instructions for manual ventilation include the age-specific ventilation instructions.

7. The physiological monitoring system of claim 1, wherein the processing board is configured to determine a compression rate for compression of the resuscitation bag based at least partly on the bag data, wherein the instructions for manual ventilation include the compression rate.

8. The physiological monitoring system of claim 7, wherein the respiratory gas measurement device comprises a display configured to display the instructions for manual ventilation.

9. The physiological monitoring system of claim 1, wherein the respiratory gas measurement device is configured to monitor one or more respiratory parameters of the patient, and wherein the processing board is configured to update the instructions for manual ventilation based at least partly on the one or more respiratory parameters of the patient.

10. The physiological monitoring system of claim 9, wherein the instructions for manual ventilation after the update include feedback on effectiveness of compressions of the resuscitation bag.

11. The physiological monitoring system of claim 9, wherein the instructions for manual ventilation include a graphical representation of compression rate and compression depth for compression of the resuscitation bag, and wherein the processing board is configured to communicate the instructions to a display.

12. The physiological monitoring system of claim 9, wherein the instructions for manual ventilation include an auditory signal for guiding compression rate and compression depth for compression of the resuscitation bag.

13. A physiological monitoring method comprising:

providing a respiratory gas measurement device including a processing board;

providing an airway adapter configured to connect to the respiratory gas measurement device and to direct exhaled respiratory gases of a patient to the respiratory gas measurement device, the airway adapter comprising a first information element configured to store adapter data representing information regarding at least one characteristic of the airway adapter;

providing a resuscitation bag configured to connect to the airway adapter and to provide positive pressure ventilation to the patient, the resuscitation bag comprising a second information element configured to store bag data representing information regarding at least one characteristic of the resuscitation bag;

communicating, via the processing board, with the first information element to read the adapter data;

communicating, via the processing board, with the second information element to read the bag data;

generating, via the processing board, manual ventilation instructions based on one or both of the adapter data and the bag data, wherein the instructions include an animated sequence and wherein a timing of the animated sequence is configured to vary to provide visual feedback; and

providing the manual ventilation instructions to a user.

14. The physiological monitoring method of claim 13, wherein the respiratory gas measurement device is configured to monitor one or more respiratory parameters of the patient, the method further comprising:

performing manual ventilation of the patient according to the manual ventilation instructions; and

updating, via the processing board, the manual ventilation instructions based at least partly on the one or more respiratory parameters of the patient.

15. The physiological monitoring method of claim 14, wherein the manual ventilation instructions after the update include feedback on effectiveness of compressions of the resuscitation bag.

16. The physiological monitoring method of claim 13, wherein the manual ventilation instructions include a graphical representation of compression rate and compression depth for compression of the resuscitation bag, the method further comprising communicating the manual ventilation instructions from the processing board to a display.

17. The physiological monitoring method of claim 13, wherein the manual ventilation instructions include an auditory signal for guiding compression rate and compression depth for compression of the resuscitation bag.

18. The physiological monitoring method of claim 13, wherein the adapter data includes one or more of a size, type, manufacturer, or usage of the airway adapter, the method further comprising determining age-specific ventilation instructions based at least partly on the adapter data, wherein the manual ventilation instructions include the age-specific ventilation instructions.

19. The physiological monitoring method of claim 13, wherein the bag data includes one or more of a size, volume, manufacturer, or usage of the resuscitation bag, the method further comprising determining one or both of a compression rate and a compression depth for compression of the resuscitation bag based at least partly on the bag data, wherein the manual ventilation instructions include the compression rate.