Nasal assembly

• US 7,942,150 B2
• Filed: 04/08/2005
• Issued: 05/17/2011
• Est. Priority Date: 04/09/2004
• Status: Active Grant

• Current Assignee: ResMed Pty Ltd. (ResMed Incorporated)
• Original Assignee: Resmed Limited (ResMed Incorporated)
• Inventors: Guney, Memduh, Dantanarayana, Muditha P.
• Primary Examiner(s): MATTER, KRISTEN CLARETTE
• Application Number:
  US11/101,657
• Publication Number:
  US 20050241644A1
• Time in Patent Office: 2,230 Days
• Field of Search: 128/201.22, 128/201.29, 128/201.24, 128/203.22, 128/204.11, 128/205.25, 128/206.11, 128/206.27, 128/207.11, 128/207.13, 128/207.17, 128/207.18, 128/DIG.26, 128/202.27, 128/206.12, 128/206.13, 128/206.18, 128/206.21, 128/206.24, 128/206.26, 128/206.28, 128/171, 128/171.1, 128/172, 128/173, 128/209.13
• US Class Current: 128/207.18
• CPC Class Codes: A61M 16/0066 Blowers or centrifugal pumps
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 16/0611 with a gusset portion
• CPC Class Codes: A61M 16/0666 Nasal cannulas or tubing devices for improving normal breathing through the nose A61F5/08; nose filters A62B23/06; outside holding devices A61M25/02
• CPC Class Codes: A61M 16/0683 Holding devices therefor
• CPC Class Codes: A61M 16/0825 with ball-sockets
• CPC Class Codes: A61M 2210/0618 Nose

Abstract

A nasal assembly for delivering breathable gas to a patient includes a frame having an integrally formed first connector portion. A nozzle assembly includes a gusset or base portion and a pair of nozzles. At least one inlet conduit is structured to deliver breathable gas into the frame and nozzle assembly for breathing by the patient. A pair of second connector portions are removably and rotatably connected to respective first connector portions of the frame and are in communication with respective inlet conduits, e.g., directly or via angle connectors. A headgear assembly is removably connected to the pair of second connector portions and/or the angle connectors so as to maintain the frame and the nozzle assembly in a desired adjusted position on the patient'"'"'s face.

Claims

1. A mask assembly for treating a patient, comprising:

a patient contacting portion defining a plenum chamber and adapted to sealingly engage with a patient;

a frame to support the patient contacting portion;

at least one vent to provide a vent exit for passage of exhaled gas; and

a baffle having a base plate and at least one arm;

wherein the base plate is connected to a portion of the frame and the at least one arm is positioned proximal to an air inlet to create air turbulence within the plenum chamber, and

wherein the baffle at least partially separates the vent exit of the vent from the air inlet.

2. A mask assembly of claim 1, wherein the mask assembly includes two inlets.

3. A mask assembly of claim 2, wherein the baffle includes two arms.

4. A mask assembly of claim 3, wherein each of the two arms are positioned proximal to a respective inlet.

5. A mask assembly of claim 1, wherein at least one arm is positioned generally perpendicular to the base plate.

6. A mask assembly of claim 1, wherein at least one arm is positioned at an end of the base plate.

7. A mask assembly of claim 1, wherein at least one arm is attached by one side.

8. A mask assembly of claim 1, wherein the patient contacting portion is a nozzle assembly.

9. A mask assembly of claim 1, wherein the patient contacting portion is a nasal mask.

10. A mask assembly of claim 1, wherein the at least one vent is provided to the patient contacting portion.

11. A nasal assembly for delivering breathable gas to a patient, comprising:

a frame having a main body;

a patient interface provided to the main body of the frame and defining a plenum chamber, the patient interface adapted to sealingly engage with a patient;

at least one vent to provide a vent exit for passage of exhaled gas; and

a baffle provided to the frame, the baffle including at least one arm adapted to extend into the plenum chamber of the patient interface and at least partially separate the vent exit from an air inlet,

wherein the baffle includes a base plate connected to the frame.

12. A nasal assembly according to claim 11, wherein the patient interface includes a nozzle assembly.

13. A nasal assembly according to claim 11, wherein the nasal assembly includes two air inlets.

14. A nasal assembly according to claim 13, wherein the baffle includes two arms, each of the arms positioned proximal to a respective inlet.

15. A nasal assembly according to claim 11, wherein the frame includes a first connector structured to connect to a second connector provided to the baffle.

16. A nasal assembly according to claim 15, wherein the first connector includes a protrusion and the second connector includes an aperture.

17. A nasal assembly according to claim 11, wherein the baffle is structured to create turbulence within the plenum chamber of the patient interface.

18. A nasal assembly according to claim 11, wherein the at least one vent is provided to the patient interface.

19. A nasal assembly for delivering breathable gas to a patient, comprising:

a frame having a main body;

a patient interface provided to the main body of the frame and defining a plenum chamber, the patient interface adapted to sealingly engage with a patient;

at least one vent to provide a vent exit for passage of exhaled gas; and

a baffle provided to the frame, the baffle including at least one arm adapted to extend into the plenum chamber of the patient interface and at least partially separate the vent exit from an air inlet, wherein the nasal assembly includes two air inlets.

20. A nasal assembly according to claim 19, wherein the baffle includes two arms, each of the arms positioned proximal to a respective inlet.