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 Title: |
US4770169:
Anaesthetic mask
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Schmoegner, John C.; Redondo Beach, CA
Swenson, Charles B.; Palos Verde Penninsula, CA
Branagan, J. Miles; Palos Verde Estates, CA
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| Assignee: |
MDT Diagnostic Company, Torrance, CA
other patents from MDT DIAGNOSTIC COMPANY (362640) (approx. 1)
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| Published / Filed: |
1988-09-13
/ 1987-02-13
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| Application Number: |
US1987000014394
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| IPC Code: |
Advanced:
A61M 16/06;
A61M 16/08;
A61M 16/00;
A61M 16/01;
IPC-7:
A62B 18/02;
A62B 18/08;
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| ECLA Code: |
A61M16/06; A61M16/08; K61M16/00P2; K61M16/01;
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| U.S. Class: |
Current:
128/207.13;
128/206.24;
128/206.28;
128/910;
D24/110.4;
Original:
128/207.13;
128/206.28;
128/206.24;
128/910;
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| Field of Search: |
128/203.12,203.29,205.25,205.19,204.18,207.13,206.28,206.26,206.24,206.21,910
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| Priority Number: |
| 1987-02-13 |
US1987000014394 |
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| Abstract: |
The present invention provides an improved anaesthetic scavenging face mask having a scavenging channel running along the perimeter of the mask. The mask is provided with an anaesthetic gas inlet and a vacuum outlet. The scavenging channel is connected to the vacuum outlet.
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| Attorney, Agent or Firm: |
Trask, Britt & Rossa ;
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| Primary / Asst. Examiners: |
Kamm, William E.; Philips, Timothy G.
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Designated Country: |
AU EP JP
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| Family: |
Show 9 known family members
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First Claim:
Show all 22 claims |
What is claimed is:
1. An anaesthetic mask comprising:
- a wall forming a respiratory chamber having a rim sized and configured to generally conform to a selected area surrounding the nose and/or mouth of a patient, said rim having a closed-loop perimeter and a generally "Y"-shaped cross section;
- an anaesthetic gas inlet mechanically associated with said respiratory chamber for connection to an anaesthetic gas supply;
- an exhaust outlet mechanically associated with said respiratory chamber for connection with a vacuum supply;
- a face seal connected to said rim, said seal including:
- a closed-loop seal body defining a vacuum channel therein and further including a plurality of openings arranged to provide gas intercommunication between said vacuum channel and the exterior of said seal body, said seal body enclosing said rim and
- vacuum connection means for providing gas intercommunication between said vacuum channel and said vacuum supply.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 110 U.S. patent(s) that reference this one
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