Nasal ventilation interface and system

• US 7,234,465 B2
• Filed: 12/10/2004
• Issued: 06/26/2007
• Est. Priority Date: 08/05/2003
• Status: Active Grant

• Current Assignee: Salter Labs, LLC
• Original Assignee: Innomed Technologies Incorporated (SunMed Group Holdings LLC)
• Inventors: Wood, Thomas J.
• Primary Examiner(s): MITCHELL, TEENA KAY
• Application Number:
  US11/008,669
• Publication Number:
  US 20050236000A1
• Time in Patent Office: 928 Days
• Field of Search: 128/201.28, 128/203.29, 128/204.12, 128/204.26, 128/205.23, 128/205.24, 128/205.25, 128/205.27, 128/206.11, 128/206.12, 128/206.15, 128/206.18, 128/206.21, 128/207.11, 128/207.13, 128/207.18
• US Class Current: 128/206.11
• 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 16/08 Bellows; Connecting tubes having means for taking samples G01N1/22; Water traps; Patient circuits
• CPC Class Codes: A61M 16/0833 T- or Y-type connectors, e.g. Y-piece

Abstract

A ventilation interface and system is described which can be adapted to be connected to a source of ventilation. The ventilation interface and system includes an exhaust port positioned at a midpoint between at least two ventilation connectors. The ventilation interface system may optionally include feed tubes, y-connector, tube holder, and headgear.

Claims

1. A nasal ventilation interface comprising:

a cannula connectable to a source of ventilation gas via at least two ventilation connectors;

at least one reservoir flange coupled to the ventilation connectors and in close proximity with at least one nasal insert;

at least one seal portion positioned on a distal end of the at least one nasal insert;

a central reservoir between the at least one reservoir flange and the nasal insert;

at least one exhaust flange coupled to the central reservoir; and

an exhaust port coupled to the exhaust flange positioned at a midpoint between the at least two ventilation connectors, the exhaust port having a decreasing circumference from a proximal portion towards a distal end of the exhaust port.

2. The ventilation interface according to claim 1, wherein the exhaust port is configured with an adjustable dial to adjust the aperture of the exhaust port.

3. The ventilation interface according to claim 1, wherein an interior wall of the exhaust port maintains a substantially constant diameter.

4. The ventilation interface according to claim 1, further comprising at least one headgear flange.

5. The ventilation interface according to claim 4, wherein the at least one headgear flange is connected on the outer wall of the cannula.

6. The ventilation interface according to claim 1, wherein at least one of the reservoir flange, nasal insert, and central reservoir are configured to provide laminar flow.

7. The ventilation interface according to claim 1 wherein the exhaust port has a substantially oval cross section.

8. The ventilation interface according to claim 1 wherein the seal portion has a substantially oval cross section.

9. The nasal ventilation interface according to claim 1 further comprising:

means for adjusting an aperture of the exhaust port.

10. A nasal ventilation interface comprising:

a cannula connectable to a source of ventilation gas via at least two ventilation connectors forming a first inflow portion;

a reservoir flange forming a second inflow portion;

at least one nasal insert, the at least one nasal insert forming a third inflow portion and a first outflow portion;

at least one seal portion positioned on a distal end of the at least one nasal insert;

a central reservoir forming a second outflow portion;

at least one exhaust flange forming a third outflow portion; and

an exhaust port positioned at a midpoint between the at least two ventilation connectors forming a fourth outflow portion and a fifth outflow portion, the exhaust port having a decreasing circumference from a proximal portion towards a distal end of the exhaust port.

11. The ventilation interface according to claim 10, wherein the exhaust port is configured with an adjustable dial to adjust the aperture of the exhaust port.

12. The ventilation interface according to claim 10, wherein an interior wall of the exhaust port maintains a substantially constant diameter.

13. The ventilation interface according to claim 10, further comprising at least one headgear flange.

14. The ventilation interface according to claim 13, wherein teat least one headgear flange is connected to the reservoir outer wall.

15. The ventilation interface according to claim 10, wherein at least one of the reservoir flange, nasal insert, and central reservoir are configured to provide laminar flow.

16. The ventilation interface according to claim 10 wherein the exhaust port has a substantially oval cross section.

17. The ventilation interface according to claim 10 wherein the seal portion has a substantially oval cross section.