Portable oxygen enrichment device and method of use
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/053
A61M-016/10
B01D-053/04
B01D-053/047
출원번호
US-0586223
(2012-08-15)
등록번호
US-8888902
(2014-11-18)
발명자
/ 주소
Galbraith, Stephen Douglas
Walker, David K.
McGowan, Kenneth J.
DePetris, Elise N.
Galbraith, Judith C.
출원인 / 주소
Separation Design Group LLC
대리인 / 주소
Choi, Wendy A.
인용정보
피인용 횟수 :
2인용 특허 :
14
초록
Lightweight, small, portable devices and methods are disclosed that provide oxygen-enriched air using an ultra rapid adsorption cycle based on advanced molecular sieve materials.
대표청구항▼
1. A device for oxygen enrichment, comprising: a compressor (129);an air storage vessel (113) having a system purge valve (125);at least one pressure swing adsorption unit (111);an oxygen purge storage vessel (117);an oxygen bolus storage vessel (119) having a pressure sensor (137);an oxygen deliver
1. A device for oxygen enrichment, comprising: a compressor (129);an air storage vessel (113) having a system purge valve (125);at least one pressure swing adsorption unit (111);an oxygen purge storage vessel (117);an oxygen bolus storage vessel (119) having a pressure sensor (137);an oxygen delivery button and nozzle assembly (103);at least one power source;electronic control unit (131);an optional charging port (109);a first passageway (A) connecting said compressor (129) and said air storage vessel (113);a second passageway (B) connecting said air storage vessel (113) and said pressure swing adsorption unit (111);a third passageway (C) connecting said pressure swing adsorption unit (111) and said oxygen purge storage vessel (117);a fourth passageway (D) connecting said oxygen purge storage vessel (117) and said oxygen bolus storage vessel (119);a fifth passageway (E) connecting said oxygen bolus storage vessel (119) and said delivery nozzle (103);a first pressure swing adsorption valve (123) associated with said second passageway (B), pressure swing adsorption unit (111), and exhaust to ambient pressure;wherein said first pressure swing adsorption valve is a three-way valve or two two-way valves;a restrictor assembly (120) positioned between said pressure swing adsorption unit (111) and said oxygen purge storage vessel (117) and connected to said third passageway (C);wherein said restrictor assembly is a separate component or a part of said pressure swing adsorption unit;a check valve/restrictor (135) positioned between said oxygen purge storage vessel (117) and said oxygen bolus storage vessel (119); anda delivery valve (127) positioned between said oxygen bolus storage vessel (119) and said delivery nozzle (103). 2. A device of claim 1, wherein each of said at least one pressure swing adsorption unit (111), comprises: a housing unit (144) having a feed end (F) and a product end (G);at least one input port (H) for incoming air flow in said feed end;at least one output port (I) for an oxygen-enriched product flow in said product end (G);an optional rupture plate (143) for said feed end;an optional rupture plate (143) for said product end;an optional fibrous pad (139) positioned at either end or both ends of said adsorbent bed; andat least one adsorbent bed contained in said housing unit, wherein said adsorbent bed comprises at least one molecular sieve material having an average particle size of about 60 μm to 180 μm and having a substantially spherical shape;wherein said adsorbent bed has an aspect ratio of length to average width of less than about 10. 3. A device of claim 1, wherein at least two pressure swing adsorption units (111a, 111b) are present and are connected via a multibed product manifold (145);wherein each of said at least two pressure swing adsorption units comprises:a housing unit (144) having a feed end (F) and a product end (G); at least one input port (H) for incoming air flow in said feed end;at least one output port (I) for an oxygen-enriched product flow in said product end (G);an optional rupture plate (143) for said feed end;an optional rupture plate (143) for said product end;an optional fibrous pad (139) positioned at either end or both ends of said adsorbent bed; andat least one adsorbent bed (111) contained in said housing unit, wherein said adsorbent bed comprises at least one molecular sieve material having an average particle size of about 60 μm to 180 μm and having a substantially spherical shape;wherein said adsorbent bed has an aspect ratio of length to average width of less than about 10. 4. A device of claim 2, wherein a single adsorbent bed is presented in a folded linear configuration. 5. A device of claim 2, wherein said adsorbent bed(s) has (have) a total length of no greater than about 15 cm. 6. A device of claim 2, wherein said adsorbent bed has an average width of no greater than about 3 cm. 7. A device of claim 2, wherein said adsorbent bed is replaceable. 8. A device of claim 2, wherein said molecular sieve material has an average particle size of about 80 μm to 120 μm. 9. A device of claim 2, wherein said molecular sieve material has a total mass less than about 10 g. 10. A device of claim 2, wherein said molecular sieve material comprises zeolite. 11. A device of claim 10, wherein said molecular sieve material comprises a metal-exchanged zeolite. 12. A device of claim 11, wherein said metal-exchanged zeolite is Li+-exchanged zeolite. 13. A device of claim 1, wherein said restrictor assembly limits flow of product gas during an adsorption period and limits flow of purge gas during a desorption period. 14. A device of claim 1, wherein said restrictor assembly (120) is an orifice (121), a porous material (122), or a combination thereof. 15. A device of claim 1, wherein said check valve restrictor assembly (135) comprises a check valve and a flow restrictor. 16. A device of claim 1, wherein said oxygen bolus storage vessel (119) is fully or partially filled with at least one micro sized material. 17. A device of claim 1, wherein said oxygen bolus storage vessel (119) is fully or partially filled with at least one oxygen selective adsorbent. 18. A device of claim 1, wherein said power source is a battery unit. 19. A device of claim 1, wherein said power source is a rechargeable battery unit. 20. A device of claim 1, further comprising: a piercing mechanism (124) attached to a product end receiver (sieve access door) (149). 21. A device of claim 1, further comprising: a piercing mechanism (124) connected to said first pressure swing adsorption valve (123). 22. A device for oxygen enrichment, comprising: a compressor (129);an air storage vessel (113) having a system puree valve (125);at least one pressure swing adsorption unit (111);an oxygen purge storage vessel (117);an oxygen bolus storage vessel (119) having a pressure sensor (137);an oxygen delivery button and nozzle assembly (103);at least one power source;electronic control unit (131);an optional charging port (109);a first passageway (A) connecting said compressor (129) and said air storage vessel (113); a second passageway (B) connecting said air storage vessel (113) and said pressure swing adsorption unit (111);a third passageway (C) connecting said pressure swing adsorption unit (111) and said oxygen purge storage vessel (117);a fourth passageway (D) connecting said oxygen purge storage vessel (117) and said oxygen bolus storage vessel (119);a fifth passageway (E) connecting said oxygen bolus storage vessel (119) and said delivery nozzle (103);a first pressure swing adsorption valve (123) associated with said second passageway (B), pressure swing adsorption unit (111), and exhaust to ambient pressure;wherein said first pressure swing adsorption valve is a three-way valve or two two-way valves;a restrictor assembly (120) positioned between said pressure swing adsorption unit (111) and said oxygen purge storage vessel (117) and connected to said third passageway (C);wherein said restrictor assembly is a separate component or a part of said pressure swing adsorption unit;a check valve/restrictor (135) positioned between said oxygen purge storage vessel (117) and said oxygen bolus storage vessel (119); anda delivery valve (127) positioned between said oxygen bolus storage vessel (119) and said delivery nozzle (103); anda moisture control unit (153) comprising at least one desiccant;wherein said moisture control unit (153) is positioned in said air storage vessel (113) near purge valve (125). 23. A device of claim 1, wherein said delivery nozzle (103) is retractable. 24. A device of claim 1, wherein said delivery nozzle (103) is retractable and is capable of being simultaneously exposed and activated by a user to deliver oxygen-enriched air. 25. A device of claim 1, further comprising: a cannula (130) attached to said delivery nozzle (103). 26. A device of claim 25, further comprising: a conserver (193) attached to said cannula (130). 27. A device for oxygen enrichment, comprising: a compressor (129);an air storage vessel (113) having a system purge valve (125);at least one pressure swing adsorption unit (111);an oxygen purge storage vessel (117);an oxygen bolus storage vessel (119) having a pressure sensor (137);an oxygen delivery button and nozzle assembly (103);at least one power source;electronic control unit (131);an optional charging port (109);a first passageway (A) connecting said compressor (129) and said air storage vessel (113); a second passageway (B) connecting said air storage vessel (113) and said pressure swing adsorption unit (111);a third passageway (C) connecting said pressure swing adsorption unit (111) and said oxygen purge storage vessel (117);a fourth passageway (D) connecting said oxygen purge storage vessel (117) and said oxygen bolus storage vessel (119);a fifth passageway (E) connecting said oxygen bolus storage vessel (119) and said delivery nozzle (103);a first pressure swing adsorption valve (123) associated with said second passageway (B), pressure swing adsorption unit (111), and exhaust to ambient pressure;wherein said first pressure swing adsorption valve is a three-way valve or two two-way valves;a restrictor assembly (120) positioned between said pressure swing adsorption unit (111) and said oxygen purge storage vessel (117) and connected to said third passageway (C);wherein said restrictor assembly is a separate component or a part of said pressure swing adsorption unit;a check valve/restrictor (135) positioned between said oxygen purge storage vessel (117) and said oxygen bolus storage vessel (119); anda delivery valve (127) positioned between said oxygen bolus storage vessel (119) and said delivery nozzle (103);wherein at least one of said air storage vessel (113); said oxygen purge storage vessel (117); andsaid oxygen bolus storage vessel (119) comprises an antimicrobial substance. 28. A device of claim 1, wherein said device is portable. 29. A device of claim 1, wherein said device has a mass of less than about 450 g. 30. A device of claim 1, wherein said device has a mass of less than about 350 g. 31. A device of claim 1, wherein said device is capable of delivering oxygen-enriched product comprising at least about 90% by weight, based on the total weight of said oxygen-enriched product, of oxygen. 32. A device of claim 1, further comprising: a case (101);an optional status display (105);an external control component (107); andan optional power or charge port (109). 33. A system, comprising: a device of claim 1;an optional docking station (155); wherein said docking station is optionally capable of performing diagnostic functions;an optional computer interface (157) capable of performing diagnostic functions;a battery recharger (108); andan optional conserver (159). 34. A device of claim 22, wherein said device is portable. 35. A device of claim 22, wherein said device has a mass of less than about 450 g. 36. A device of claim 22, wherein said device has a mass of less than about 350 g. 37. A device of claim 22, wherein said device is capable of delivering oxygen-enriched product comprising at least about 90% by weight, based on the total weight of said oxygen-enriched product, of oxygen. 38. A device of claim 22, further comprising: a case (101);an optional status display (105);an external control component (107); andan optional power or charge port (109). 39. A system, comprising: a device of claim 22;an optional docking station (155); wherein said docking station is optionally capable of performing diagnostic functions;an optional computer interface (157) capable of performing diagnostic functions;a battery recharger (108); andan optional conserver (159). 40. A device of claim 27, wherein said device is portable. 41. A device of claim 27, wherein said device has a mass of less than about 450 g. 42. A device of claim 27, wherein said device has a mass of less than about 350 g. 43. A device of claim 27, wherein said device is capable of delivering oxygen-enriched product comprising at least about 90% by weight, based on the total weight of said oxygen-enriched product, of oxygen. 44. A device of claim 27, further comprising: a case (101);an optional status display (105);an external control component (107); andan optional power or charge port (109). 45. A system, comprising: a device of claim 27;an optional docking station (155); wherein said docking station is optionally capable of performing diagnostic functions;an optional computer interface (157) capable of performing diagnostic functions;a battery recharger (108); andan optional conserver (159). 46. A device of claim 1, wherein said device is a component of a topical oxygen wound care device. 47. A device of claim 3, wherein said device is a component of a topical oxygen wound care device.
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이 특허에 인용된 특허 (14)
Taylor, Brenton; Hansen, Peter, Adsorbent bed pressure balancing for a gas concentrator.
Smolarek James (Boston NY) Schaub Herbert Raymond (East Amherst NY) Fassbaugh John Harry (Elma NY) Aaron Timothy Mark (Williamsville NY), Single bed pressure swing adsorption process for recovery of oxygen from air.
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