US5174281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Birth-assisting pneumatic cuff
Assignee: WAGI PARTNERSHIP A TN PARTNERSHIP OF MEMPHIS
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Filing: 1990-11-26
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Granted: 1992-12-29
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Expires: 2010-11-26
Abstract
Abstract A pneumatic cuff assembly fitting over and around the entire maternal abdomen is intermittently inflated to a low and safe pressure in synchrony with the mother's voluntary straining efforts in order to augment the intra-abdominal pressure to assist the delivery of the fetus at the final stage of child birth.
Inventors
- 👤 Ling H. Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:44
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/30; A61F5/34; A61B; A61B17/00; A61B17/42; A61B2017/00535; A61B2017/00681; A61B2017/00694
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
125 words
A double layer pneumatic cuff assembly fitting around the entire maternal abdomen to intermittently augment the intra-abdominal pressure in synchrony with the patient's voluntary straining efforts at the final stage of child birth, wherein said cuff comprsies three integrally connected and cooperatively functioning sections: a right and a left double layer inflatable section, each section having plurality of connecting elongated fingered leaf segments the middle leaf segments being longer than the end leaf segments; each said section having its own air supply hose; such that when the said two sections are applied on the abdomen the fingered leaves are interlaced; a middle rectangular section fitting under the patient's back connecting to the bases of the two aforementioned sections said middle section having only one layer.
Claim 2
Dependent Claim
125 words
A double layer pneumatic cuff assembly fitting around the entire maternal abdomen to intermittently augment the intra-abdominal pressure in synchrony with the patient's voluntary straining efforts at the final stage of child birth, wherein said cuff comprsies three integrally connected and cooperatively functioning sections: a right and a left double layer inflatable section, each section having plurality of connecting elongated fingered leaf segments the middle leaf segments being longer than the end leaf segments; each said section having its own air supply hose; such that when the said two sections are applied on the abdomen the fingered leaves are interlaced; a middle rectangular section fitting under the patient's back connecting to the bases of the two aforementioned sections said middle section having only one layer.
Claim 3
Dependent Claim
60 words
An assembly as set forth in claim 1 wherein a hook and loop fastener means is positioned near the end of each of the said fingered leaf segments on the side facing the abdomen, and a mating hook and loop fastener means is positioned at the base of said fingered leaf segments on the side facing away from the abdomen.
Claim 4
Dependent Claim
14 words
An assembly as set forth in claim 1 includes a pressure regulated air supply.
Claim 5
Dependent Claim
22 words
An assembly as set forth in claim 1 includes a hand-operated inflate/deflate control valve between the said cuff and the air supply.
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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) | 1995-12-29 | 1996-06-29 | 1996-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-29 | 2000-06-29 | 2000-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-29 | 2004-06-29 | 2004-12-29 | $7700.00 | Window Closed / Lapsed |