Face mask for gas monitoring during supplemental oxygen delivery

• US 20030047188A1
• Filed: 08/29/2002
• Published: 03/13/2003
• Est. Priority Date: 09/07/2001
• Status: Active Grant

• Current Assignee: Philips RS North America LLC (Koninklijke Philips N.V.)
• Original Assignee: Respironics Incorporated
• Inventors: Polson, Michael J.R., Mace, Leslie E., Triunfo, John A. Jr., Rich, David, Pierry, Anthony T., Terry, Randall J.
• Granted Patent: US 7,004,168 B2
• Time in Patent Office: Days
• US Class Current: 128/205.25
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 16/0833 T- or Y-type connectors, e.g. Y-piece
• CPC Class Codes: A61M 16/0841 for sampling
• CPC Class Codes: A61M 16/12 by mixing different gases
• CPC Class Codes: A61M 2230/432 partial CO2 pressure (P-CO2)

Abstract

A face mask including a gas monitoring capability for improved patient management in combination with improved efficiency of supplemental oxygen delivery to the patient is provided. The face mask of the present invention is configured to direct substantially all of the inspiratory and expiratory gas streams to and from the patient through a gas measuring device and to efficiently deliver supplemental oxygen. As such, the face mask permits measurement of both oral and nasal gas exchange.

Claims

1. A face mask assembly, comprising:

a face mask sized and configured to substantially conformally fit over the oral and nasal region of a patient'"'"'s face, the mask having a port;

a gas measurement component having a proximal end operably coupled to the face mask through the port; and

an oxygen delivery housing in communication with a distal end of the gas measurement component, the oxygen delivery housing defining a reservoir and including an oxygen delivery inlet port opening into a side of the housing.

2. The face mask assembly of claim 1, wherein the gas measurement component is arranged as a mainstream adapter.

3. The face mask assembly of claim 1, wherein the gas measurement component comprises a gas sample cell.

4. The face mask assembly of claim 3, wherein the gas measurement component further comprises a gas sensor cooperatively coupled to the gas sample cell.

5. The face mask assembly of claim 1, wherein the reservoir is a fixed volume reservoir.

6. The face mask assembly of claim 5, wherein the oxygen delivery inlet port is located substantially medially along a length of the oxygen delivery housing.

7. The face mask assembly of claim 5, wherein the oxygen delivery inlet port is located relatively proximally along a length of the oxygen delivery housing.

8. The face mask assembly of claim 5, wherein the oxygen delivery inlet port is located relatively distally along a length of the oxygen delivery housing.

9. The face mask assembly of claim 1, wherein the reservoir is an adjustable volume reservoir.

10. The face mask assembly of claim 9, wherein the oxygen delivery inlet port is located medially along a length of the oxygen delivery housing.

11. The face mask assembly of claim 9, wherein the oxygen delivery inlet port is located relatively proximally along a length of the oxygen delivery housing.

12. The face mask assembly of claim 9, wherein the oxygen delivery inlet port is located relatively distally along a length of the oxygen delivery housing.

13. The face mask assembly of claim 1, further including a flow measurement component operably interposed between the face mask and the oxygen delivery housing.

14. The face mask assembly of claim 13, wherein the flow measurement component is integral with the gas measurement component.

15. The face mask assembly of claim 1, further including a tubular adapter piece comprising a base leg and two side legs in common communication, the tubular adapter in communication with a distal end of the gas measurement component, a first side leg having a check valve therein oriented to permit proximal flow and to prevent distal flow therethrough, the first side leg having a distal end in communication with a proximal end of the oxygen delivery housing, and a second side leg having a check valve therein oriented to permit distal flow and to prevent proximal flow therethrough, the second side leg having a distal end in communication with the ambient atmosphere.

16. The face mask assembly of claim 15, wherein the tubular adapter piece is configured as at least one of a Y and a T.

17. The face mask assembly of claim 1, wherein the gas sample component is arranged as a sidestream adapter.

18. The face mask assembly of claim 1, further including structure for securing the face mask over the oral and nasal region of the patient'"'"'s face.