Patent US5983897A successfully refreshed from Google Patents.
US5983897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laryngeal mask assemblies
Assignee: Smiths Group PLC
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Filing: 1998-03-11
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Granted: 1999-11-16
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Expires: 2018-03-11
Abstract
Abstract A laryngeal mask assembly has a mask portion formed by a mount with a plate to which inflatable cuffs are attached on both sides. The plate projects beyond the cuffs to form a non-inflatable leading tip to aid insertion of the assembly into the patient.
Inventors
- 👤 Eric Pagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:32
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0402; A61M16/0409
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
106 words
A laryngeal mask assembly comprising: a tube having a patient end and a machine end, a mask portion at the said patient end of said tube, said tube opening into a center of said mask portion, said mask portion having a non-inflatable mount member and an inflatable cuff member mounted on said mount member, said cuff member being of generally oval shape for providing a seal with patient tissue in the region of the hypopharynx, and said mount member including a tip portion projecting beyond said cuff member to provide a non-inflatable extension beyond said cuff member to aid insertion of said assembly into a patient.
Claim 2
Dependent Claim
106 words
A laryngeal mask assembly comprising: a tube having a patient end and a machine end, a mask portion at the said patient end of said tube, said tube opening into a center of said mask portion, said mask portion having a non-inflatable mount member and an inflatable cuff member mounted on said mount member, said cuff member being of generally oval shape for providing a seal with patient tissue in the region of the hypopharynx, and said mount member including a tip portion projecting beyond said cuff member to provide a non-inflatable extension beyond said cuff member to aid insertion of said assembly into a patient.
Claim 3
Dependent Claim
44 words
A laryngeal mask assembly according to claim 1, wherein said mount member comprises a sleeve attached with said tube and a plate member projecting at an angle to said sleeve, and wherein said tip portion is provided by a part of said plate member.
Claim 4
Dependent Claim
24 words
A laryngeal mask assembly according to claim 2, wherein said tip portion is provided by a curved up leading edge of said plate member.
Claim 5
Dependent Claim
23 words
A laryngeal mask assembly according to claim 1, wherein said assembly includes two cuff members attached to opposite sides of said mount member.
Claim 6
Dependent Claim
134 words
A laryngeal mask assembly comprising: a tube having a patient end and a machine end; and a mask portion at said patient end of said tube, said mask portion comprising a mount member and an inflatable cuff member of generally oval shape for providing a seal with patient tissue in the region of the hypopharynx, said mount member comprising a sleeve attached with said patient end of said tube and a plate member extending outwardly of said sleeve at an angle, said tube opening centrally of said plate member, said inflatable cuff member being attached around an edge with said mount member and a forward edge of said plate member extending to form a non-inflatable leading tip member that projects beyond said inflatable cuff member to aid insertion of said assembly into a patient.
Claim 7
Dependent Claim
134 words
A laryngeal mask assembly comprising: a tube having a patient end and a machine end; and a mask portion at said patient end of said tube, said mask portion comprising a mount member and an inflatable cuff member of generally oval shape for providing a seal with patient tissue in the region of the hypopharynx, said mount member comprising a sleeve attached with said patient end of said tube and a plate member extending outwardly of said sleeve at an angle, said tube opening centrally of said plate member, said inflatable cuff member being attached around an edge with said mount member and a forward edge of said plate member extending to form a non-inflatable leading tip member that projects beyond said inflatable cuff member to aid insertion of said assembly into a patient.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-11-15 | 2003-05-17 | 2003-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-15 | 2007-05-17 | 2007-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-15 | 2011-05-17 | 2011-11-16 | $7700.00 | Window Closed / Lapsed |