System and Method for Controlling Bolus Pulse Duration Based on Inspiratory Time in an Oxygen Concentration System

• US 20100051030A1
• Filed: 09/03/2009
• Published: 03/04/2010
• Est. Priority Date: 09/04/2008
• Status: Active Grant

• Current Assignee: Caire Incorporated (Niterra Co., Ltd.)
• Original Assignee: Sequal Technologies Incorporated (Niterra Co., Ltd.)
• Inventors: Edwards, Paul L., Richard, Ronald F.
• Granted Patent: US 9,278,185 B2
• Time in Patent Office: Days
• US Class Current: 128/204.230
• CPC Class Codes: A61M 16/10 Preparation of respiratory gases or vapours
• CPC Class Codes: A61M 16/101 using an oxygen concentrator
• CPC Class Codes: A61M 16/107 in the inspiratory path
• CPC Class Codes: A61M 16/161 with means for measuring the humidity
• CPC Class Codes: A61M 2016/0021 with a proportional output signal, e.g. from a thermistor
• CPC Class Codes: A61M 2016/0039 in the inspiratory circuit
• CPC Class Codes: A61M 2202/0208 Oxygen
• CPC Class Codes: A61M 2205/3358 Measuring barometric pressure, e.g. for compensation
• CPC Class Codes: A61M 2205/3368 Temperature
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2205/8268 Fuel storage cells
• CPC Class Codes: B01D 2253/104 Alumina
• CPC Class Codes: B01D 2253/106 Silica or silicates
• CPC Class Codes: B01D 2253/108 Zeolites
• CPC Class Codes: B01D 2256/12 Oxygen
• CPC Class Codes: B01D 2257/102 Nitrogen
• CPC Class Codes: B01D 2259/40005 using rotary valves
• CPC Class Codes: B01D 2259/40071 Nine
• CPC Class Codes: B01D 2259/4061 using five beds
• CPC Class Codes: B01D 2259/4146 : Contiguous multilayered adsorbents
• CPC Class Codes: B01D 2259/4533 : for medical purposes
• CPC Class Codes: B01D 2259/4541 : for portable use, e.g. gas masks
• CPC Class Codes: B01D 53/0415 : Beds in cartridges
• CPC Class Codes: B01D 53/0446 : Means for feeding or distributing gases
• CPC Class Codes: B01D 53/047 : Pressure swing adsorption
• CPC Class Codes: C01B 13/0233 : Chemical processing only
• CPC Class Codes: C01B 13/0251 : by making use of membranes
• CPC Class Codes: C01B 13/027 : Zeolites
• CPC Class Codes: C01B 2210/0046 : Nitrogen
• CPC Class Codes: C01B 2210/0062 : Water
• CPC Class Codes: C01B 3/56 : by contacting with solids; Regeneration of used solids C01B3/508 takes precedence

Abstract

A method of controlling bolus delivery in a pulse flow oxygen concentration system for a patient includes providing a pulse flow oxygen concentration system that delivers concentrated oxygen gas to the patient in boluses having a pulse bolus duration, the pulse flow oxygen concentration system including an open control for controlling the pulse bolus duration of the boluses; determining one or more respiratory conditions of the patient; and adjusting the open control to adjust the pulse bolus duration of the boluses in accordance with the determined one or more respiratory conditions of the patient.

Claims

1. A method of controlling bolus delivery in a pulse flow oxygen concentration system for a patient, comprising:

providing a pulse flow oxygen concentration system that delivers concentrated oxygen gas to the patient in boluses having a pulse bolus duration, the pulse flow oxygen concentration system including an open control for controlling the pulse bolus duration of the boluses;

determining one or more respiratory conditions of the patient;

adjusting the open control to adjust the pulse bolus duration of the boluses in accordance with the determined one or more respiratory conditions of the patient.

2. The method of claim 1, wherein the one or more respiratory conditions of the patient includes respiratory mechanics of the patient.

3. The method of claim 1, wherein the one or more respiratory conditions of the patient includes an inspiratory ratio of the patient.

4. The method of claim 1, wherein the one or more respiratory conditions of the patient includes an inspiratory time of the patient.

5. The method of claim 1, wherein the one or more respiratory conditions of the patient includes a percentage of the inspiratory time of the patient'"'"'s total breathing pattern.

6. The method of claim 1, wherein the one or more respiratory conditions of the patient includes an exhalatation time of the patient.

7. The method of claim 1, wherein the one or more respiratory conditions of the patient include a degree of lung over distension.

8. The method of claim 1, wherein the one or more respiratory conditions of the patient include a type of obstructive lung disease.

9. The method of claim 1, wherein the one or more respiratory conditions of the patient include a degree of lung stiffness.

10. The method of claim 1, wherein the one or more respiratory conditions of the patient include a type of restrictive lung disease.

11. The method of claim 1, wherein adjusting the open control to adjust the pulse bolus duration of the boluses includes multiplying a default pulse duration by a factor.

12. The method of claim 1, wherein the one or more respiratory conditions include chronic obstructive pulmonary disease, and adjusting the open control to adjust the pulse bolus duration of the boluses includes adjusting the open control to decrease the pulse duration.

13. The method of claim 1, wherein the one or more respiratory conditions include pulmonary fibrosis, and adjusting the open control to adjust the pulse bolus duration of the boluses includes adjusting the open control to increase the pulse duration.

14. The method of claim 1, wherein adjusting the open control to adjust the pulse bolus duration includes maintaining a prescribed bolus volume while shortening the pulse bolus duration.

15. The method of claim 1, wherein adjusting the open control to adjust the pulse bolus duration includes maintaining a prescribed bolus volume while lengthening the pulse bolus duration.

16. The method of claim 1, wherein providing a pulse flow oxygen concentration system includes providing a continuous flow and pulse flow oxygen concentration system.

17. The method of claim 1, wherein providing a pulse flow oxygen concentration system includes providing a pressure swing adsorption oxygen concentration system.

18. The method of claim 1, wherein providing a pulse flow oxygen concentration system includes providing a vacuum pressure swing adsorption oxygen concentration system.

19. The method of claim 1, wherein providing a pulse flow oxygen concentration system includes providing at least one of a molecular sieve oxygen concentration system and a membrane oxygen concentration system.

20. The method of claim 1, wherein providing a pulse flow oxygen concentration system includes providing a pulse flow portable oxygen concentration system weighing 4 to 20 lbs.