 |
|
|
|
|
|
 Title: |
US4907584:
Respiratory mask
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
McGinnis, Gerald E.; Monroeville, PA 15146
|
| Assignee: |
None
|
| Published / Filed: |
1990-03-13
/ 1988-03-03
|
| Application Number: |
US1988000163562
|
| IPC Code: |
Advanced:
A61M 16/06;
A62B 18/02;
Core:
A62B 18/00;
more...
IPC-7:
A62B 7/00;
|
| U.S. Class: |
Current:
128/206.24;
128/206.28;
Original:
128/206.24;
128/206.28;
|
| Field of Search: |
128/205.13,205.18,205.22,205.25,206.21,206.24,206.25,206.26,206.27,206.28,207.13,206.23,206.12,206.14,206.16,206.15,207.12,206.17
002/006,410,411,414,424,428
|
| Priority Number: |
| 1988-03-03 |
US1988000163562 |
|
| Abstract: |
A respiratory mask having a flexible seal that encompasses a space which is formed and adapted to receive nasal or nasal and oral portions of a user's face, the mask also having a rigid support extending continuously adjacent the perimeter of the flexible seal to support a portion thereof against radially outward deformation under the influence of internal pressure within the space encompassed thereby, while permitting a continuously extending perimeteral portion of the flexible seal to resiliently deform against the facial structure of the user to form a surface seal in engagement therewith, the degree of such deformation of the flexible seal being limited by insertion of selected spacers from a family of differently sized spacers intermediate the mask and the face of the user to thereby limit the minimum spacing that may be established between the mask and the face of the user, and to thereby accommodate adjustment of the seal profile to the user's face.
|
| Attorney, Agent or Firm: |
Carothers & Carothers ;
|
| Primary / Asst. Examiners: |
Burr, Edgar S.; Asher, Kimberly L.
|
| INPADOC Legal Status: |
Show legal status actions
|
| Family: |
None
|
First Claim:
Show all 21 claims |
I claim:
1. In a respiratory mask adapted to receive breathing gas from a gas supply means and further adapted for confronting engagement with the face of a human user to facilitate administration of such breathing gas to such a user, the combination comprising:
- a mask body adapted to carry a flexible seal means;
- a flexible seal means affixed to said mask body and adapted for such confronting engagement with such a user's face to form an annular sealed interface encompassing a predetermined portion of such user's face;
- said seal means including a flexible peripheral sidewall portion which projects from of said mask body and a seal portion formed adjacent an outer extent of said sidewall portion and spaced from said mask body; and
- means to limit deformation of said seal means when in engagement with a user's face, said means to limit including spacer means affixed to said mask body and cooperable therewith to limit the approach of said mask body toward the face of such a user.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 149 U.S. patent(s) that reference this one
|
