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 Title: |
US5560354:
Facial masks for assisted respiration or CPAP
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Berthon-Jones, Michael; Leonay, Australia
Calluaud, Michel; Hunters Hill, Australia
Lynch, Christopher E.; Turramurra, Australia
Hely, Kenneth F.; Jannali, Australia
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| Assignee: |
ResCare Limited Australia
other patents from RESCARE LIMITED (695182) (approx. 3)
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| Published / Filed: |
1996-10-01
/ 1994-06-17
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| Application Number: |
US1994000262134
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| IPC Code: |
Advanced:
A61M 16/06;
A61M 16/01;
IPC-7:
A61M 15/08;
A62B 18/02;
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| ECLA Code: |
A61M16/06; K61M16/01; K61M16/06A4; K61M210/06C;
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| U.S. Class: |
Current:
128/205.25;
128/204.18;
128/205.24;
128/206.24;
128/207.13;
Original:
128/205.25;
128/204.18;
128/206.24;
128/207.13;
128/205.24;
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| Field of Search: |
128/205.25,203.22,206.24,207.13,206.28,206.26,204.18,206.27,207.11,206.21,207.12,205.24,206.29
137/510
251/61.1,61.2
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| Priority Number: |
| 1993-06-18 |
AU1993000009490 |
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| Abstract: |
A combination mouth and nasal mask (40) for assisted respiration or CPAP is disclosed. The combination mask (40) has a frame (42) to the rear side of which is mounted a separate nasal cushion (44) and mouth cushion (46). Both the nasal cushion (44) and the mouth cushion (46) separately form a rolled edge seal around the patient's face in the vicinity of the nose and in the vicinity of the lips. Inlet air is communicated from within the housing (48) to the mouth chamber, circumscribed by the mouth cushion (46) by means of one or more interconnecting tubes (62). The proportion of air communicated to the mouth chamber (48) is controlled by the sizing and number of the tube(s), thus providing for free flow of air, restricted flow of air and pressure equalisation, or zero flow of air. A mouth mask (10) for assisted respiration or CPAP also is disclosed.
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| Attorney, Agent or Firm: |
Merchant, Gould, Smith, Edell, Welter & Schmidt, P.A. ;
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| Primary / Asst. Examiners: |
Burr, Edgar S.; Deane, Jr., William J.
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Designated Country: |
DE FR GB IT
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| Family: |
Show 11 known family members
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First Claim:
Show all 18 claims |
What we claim is:
1. A combination mouth and nose mask for use in ventilation or CPAP of the nose and mouth of a patient, the mask comprising a separate nasal cushion and mouth cushion, the nasal cushion shaped to form a rolled edge seal circumscribing a region surrounding the patient's nose, the mouth cushion shaped to form a rolled edge seal circumscribing a region surrounding the patient's lips, the nasal cushion defining a nasal air supply chamber and the mouth cushion defining a mouth air supply chamber, the said nasal and mouth air supply chambers being commonly in fluid communication, and further in fluid communication with an inlet supply of pressurised air or gas, and expiration means, a safety valve comprising a valve chamber and a stretchable membrane formed within said valve chamber, said valve chamber having one or more openings to allow free passage of air from the atmosphere and an exit opening in fluid communication with said mouth chamber, and wherein the mask is operable to supply pressurized air or gas for inspiration by the inlet to the said nasal and mouth chambers, and the expiration means provides for expiration by a route of either the mouth chamber in fluid communication with the nasal chamber, or by both chambers directly.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 202 U.S. patent(s) that reference this one
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