CA2362177A1 - Ventilatory stablization technology - Google Patents

Ventilatory stablization technology Download PDF

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Publication number
CA2362177A1
CA2362177A1 CA002362177A CA2362177A CA2362177A1 CA 2362177 A1 CA2362177 A1 CA 2362177A1 CA 002362177 A CA002362177 A CA 002362177A CA 2362177 A CA2362177 A CA 2362177A CA 2362177 A1 CA2362177 A1 CA 2362177A1
Authority
CA
Canada
Prior art keywords
mask
tube
supplying means
gas
exit
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.)
Granted
Application number
CA002362177A
Other languages
French (fr)
Other versions
CA2362177C (en
Inventor
John E. Remmers
Eric Andrew Hajduk
Ronald Scott Platt
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.)
University Technologies International Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2362177A1 publication Critical patent/CA2362177A1/en
Application granted granted Critical
Publication of CA2362177C publication Critical patent/CA2362177C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
    • A61M16/0066—Blowers or centrifugal pumps
    • A61M16/0069—Blowers or centrifugal pumps the speed thereof being controlled by respiratory parameters, e.g. by inhalation
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • A61M16/024—Control means therefor including calculation means, e.g. using a processor
    • A61M16/026—Control means therefor including calculation means, e.g. using a processor specially adapted for predicting, e.g. for determining an information representative of a flow limitation during a ventilation cycle by using a root square technique or a regression analysis
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • A61M16/0841—Joints or connectors for sampling
    • A61M16/085—Gas sampling
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0045—Means for re-breathing exhaled gases, e.g. for hyperventilation treatment
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0036—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the breathing tube and used in both inspiratory and expiratory phase
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0042—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the expiratory circuit
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M2016/102—Measuring a parameter of the content of the delivered gas
    • A61M2016/103—Measuring a parameter of the content of the delivered gas the CO2 concentration
    • 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
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/40—Respiratory characteristics
    • A61M2230/43—Composition of exhalation
    • A61M2230/432—Composition of exhalation partial CO2 pressure (P-CO2)

Landscapes

  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

This invention is a system for reducing central sleep apnea (CSA) in which certain methods of increasing a patient's re-breathing during periods of the sleep cycle are used. The over-oxygenation which typically results from the over-breathing period can be reduced, thus reducing the compensating under- breathing period, and effectively reducing the loop gain associated with the CSA. One embodiment of the device includes a blower (60), a mask (64) with a gas exit (66), a tube (62) connected between the blower, and the mask.</SDOA B>

Claims (46)

1. An apparatus for treating central sleep apnea comprising:
a gas supplying means; and a mask adapted to be fit on a patient's face, the mask operably connected using a tube to the gas supplying means, the mask having a exit, wherein the apparatus is arranged such that during periods of increased breathing associated with central sleep apnea, some of the patient's exhaled gasses flow retrograde into the tube.
2. The apparatus of claim 1, wherein the apparatus is adapted such that during an initial exhale portion of increased breathing associated with central sleep apnea, some of the patient's exhaled gasses flow retrograde into the tube and the wash flow out of the tube such that during the next inhale portion some rebreathing occurs.
3. The apparatus of claim 1, wherein the apparatus is adapted such that during normal breathing periods little rebreathing occurs.
4. The apparatus of claim 3, wherein the apparatus is adapted such that during normal breathing periods some retrograde flow occurs but the wash flow is sufficient to remove the exhaled air before the next inhale portion.
5. The apparatus of claim 1, wherein the retrograde flow into the tube is influenced by the gas pressure from the gas supplying means and by the exit hole size.
6. The apparatus of claim 1, wherein the gas pressure from the gas supplying means is set below four cm H2O pressure.
7. The apparatus of claim 1, wherein the gas pressure from the gas supplying means is set at two cm H2O pressure or below
8. The apparatus of claim 1, wherein the exit hole size is adjustable.

-24-~
9. The apparatus of claim 1, wherein the pressure in the mask is set high enough to treat obstructive sleep apnea.
10. The apparatus of Claim 1 wherein the gas-supplying means comprises a blower which blows air to the mask.
11. The apparatus of Claim 1 wherein the mask is adapted to fit about a patient's nose.
12. The apparatus of Claim 1 wherein the gas-supplying means is adjustable.
13. A method comprising:
providing an apparatus comprising a gas supplying means and a mask adapted to be fit on a patient's face, the mask operably connected using a tube to the gas supplying means, the mask having a exit;
fitting the mask to the patients face; and adjusting the apparatus such that during periods of increased breathing associated with central sleep apnea, some of the patient's exhaled gasses flow retrograde into the tube.
14. The method of claim 13, wherein the adjusting step is done such that during an initial exhale portion of increased breathing associated with central sleep apnea, some of the patient's exhaled gasses flow retrograde into the tube and the wash flow out of the tube such that during the next inhale portion some rebreathing occurs.
15. The method of claim 13, wherein the adjusting step is done such that during normal breathing periods little rebreathing occurs.
16. The method of claim 15, wherein the adjusting step is done such that during normal breathing periods some retrograde flow occurs but the wash flow is sufficient to remove the exhaled air before the next inhale portion.
17. The method of claim 13, wherein the retrograde flow into the tube is influenced by the gas pressure from the gas supplying means and by the exit hole size.
18. The method of claim 13, wherein the adjusting step is such that the gas pressure from the gas supplying means is set below four cm H2O pressure.
19. The method of claim 13, wherein the adjusting step is such that the gas pressure from the gas supplying means is set at two cm H2O pressure or below
20. The method of claim 13, wherein the adjusting step includes adjusting the exit hole size.
21. The method of claim 13, wherein the pressure in the mask is set high enough to treat obstructive sleep apnea.
22. The method of Claim 13 wherein the gas supplying means comprises a blower.
23. The method of Claim 13 wherein the mask is fitted about a patient's nose.
24. An apparatus for treating central sleep apnea comprising:
a gas supplying means;
a mask adapted to be fit on a patient's face, the mask operably connected using an input tube to the gas supplying means, the mask having a exit;
a variable air resistance means operably connected to the exit of the mask;
and a controller operably connected to the variable air resistance means to adjust the level of rebreathing that occurs.
25. The apparatus of Claim 24 wherein the variable air resistance means comprises an adjustable valve.
26. The apparatus of Claim 25 further comprising an exit tube between the mask and the adjustable valve.
27. The apparatus of Claim 24 wherein the controller adjusts the variable air resistance means to provide a dead space during certain portions of the sleep cycle.
28. The apparatus of Claim 24 wherein the controller adjusts the variable air resistance means to modify exit flow at different times during a nights sleep.
29. The apparatus of Claim 24 further comprising a flow meter to provide signals to be controller.
30. The apparatus of Claim 24 wherein the controller detects periodicities in sleep cycle to determine how to adjust the level of rebreathing.
31. An apparatus for treating central sleep apnea comprising:
a gas supplying means; and a mask adapted to be fit on a patient's face, the mask operably connected using a tube to the gas supplying means, the mask having a exit, wherein the supply of gas from the gas supplying means has a varying gas pressure that is changed at different times during the patient's periodic sleep cycle.
32. The apparatus of Claim 31 further comprising a controller to control the varying of the gas pressure supplied by the gas supply means.
33. The apparatus of Claim 31 wherein the gas supply means comprises a blower.
34. The apparatus of Claim 31, further comprising a flow meter.
35. The apparatus of Claim 31, further comprising an exit tube wherein the mask exit at the end of the exit tube.
36. An apparatus for treating central sleep apnea comprising:
a blower;
a mask adapted to be fit on a patient's face, the mask operably connected using a tube to the gas supplying means; and a processor adapted to adjust the level of rebreathing by adjusting an active control element of the apparatus.
37. The apparatus of Claim 36, wherein the active control element is a variable air resistance means operably connected to a exit of the mask.
38. The apparatus of Claim 36, wherein the active control element is a unit to adjust the blower output.
39. The apparatus of Claim 38, wherein the active control element is a unit to adjust the blower output revolutions per minute.
40. The apparatus of Claim 38, further comprising an exit tube connected to the mask.
41. The apparatus of Claim 36, wherein the active control element is a recirculator.
42. The apparatus of Claim 36, wherein the active control element is a valve to a dead space volume.
43. The apparatus of Claim 36, wherein the active control element is adjusted during the patient's periodic sleep cycle.
44. The apparatus of Claim 36, wherein the active control element is adjusted over the entire sleeping period.
45. The apparatus of Claim 36, wherein the processor receives data from a flow meter.
46. The apparatus of Claim 36, wherein the processor receives data from a carbon dioxide sensor.
CA2362177A 1999-02-04 2000-02-04 Ventilatory stablization technology Expired - Fee Related CA2362177C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11861699P 1999-02-04 1999-02-04
US60/118,616 1999-02-04
PCT/US2000/002848 WO2000045882A1 (en) 1999-02-04 2000-02-04 Ventilatory stablization technology

Publications (2)

Publication Number Publication Date
CA2362177A1 true CA2362177A1 (en) 2000-08-10
CA2362177C CA2362177C (en) 2012-04-17

Family

ID=22379706

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2362177A Expired - Fee Related CA2362177C (en) 1999-02-04 2000-02-04 Ventilatory stablization technology

Country Status (4)

Country Link
EP (1) EP1156845A1 (en)
AU (1) AU2868900A (en)
CA (1) CA2362177C (en)
WO (1) WO2000045882A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7073501B2 (en) * 1999-02-04 2006-07-11 Univerity Technologies International Inc. Ventilatory stabilization technology
US6752151B2 (en) 2000-09-25 2004-06-22 Respironics, Inc. Method and apparatus for providing variable positive airway pressure
AU2002951984A0 (en) * 2002-10-10 2002-10-31 Compumedics Limited Sleep quality and auto cpap awakening
EP1923088A3 (en) * 2003-01-28 2008-12-03 Beth Israel Deaconess Medical Center, Inc. Gas systems and methods for enabling respiratory stability
US7886740B2 (en) * 2003-01-28 2011-02-15 Beth Israel Deaconess Medical Center, Inc. Gas systems and methods for enabling respiratory stability
EP1477199A1 (en) 2003-05-15 2004-11-17 Azienda Ospedaliera Pisana Apparatus for non-invasive mechanical ventilation
US7717110B2 (en) 2004-10-01 2010-05-18 Ric Investments, Llc Method and apparatus for treating Cheyne-Stokes respiration
US8381732B2 (en) 2008-03-21 2013-02-26 The Periodic Breathing Foundation, Llc Nasal interface device
US7900626B2 (en) 2006-04-17 2011-03-08 Daly Robert W Method and system for controlling breathing
US20090025725A1 (en) * 2007-07-26 2009-01-29 Uti Limited Partnership Transient intervention for modifying the breathing of a patient
EP3865171A1 (en) * 2010-03-25 2021-08-18 ResMed Paris SAS Breathable gas inlet control device for respiratory treatment apparatus
US8638200B2 (en) 2010-05-07 2014-01-28 Covidien Lp Ventilator-initiated prompt regarding Auto-PEEP detection during volume ventilation of non-triggering patient
US9038633B2 (en) 2011-03-02 2015-05-26 Covidien Lp Ventilator-initiated prompt regarding high delivered tidal volume
CN103458950B (en) * 2011-03-24 2019-04-30 皇家飞利浦有限公司 It is accumulated by control and drives in the wrong direction volume to manage the method and system of centric sleep apnea
CN104271190A (en) 2012-05-01 2015-01-07 皇家飞利浦有限公司 System and method for controlling flow during exhalation in a respiratory support system
US9027552B2 (en) 2012-07-31 2015-05-12 Covidien Lp Ventilator-initiated prompt or setting regarding detection of asynchrony during ventilation
WO2021136702A1 (en) * 2019-12-31 2021-07-08 Koninklijke Philips N.V. Utilizing loop gain for positive airway pressure ventilation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5906203A (en) * 1994-08-01 1999-05-25 Safety Equipment Sweden Ab Breathing apparatus
US5540219A (en) * 1995-01-26 1996-07-30 Respironics, Inc. Sleep apnea treatment apparatus

Also Published As

Publication number Publication date
EP1156845A1 (en) 2001-11-28
AU2868900A (en) 2000-08-25
WO2000045882A1 (en) 2000-08-10
CA2362177C (en) 2012-04-17

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Effective date: 20170206