US3765408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soft obstetric vacuum cup for assisting childbirth
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1972-03-16
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Granted: 1973-10-16
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Expires: 1992-03-16
Abstract
Abstract A soft obstetric vacuum cup for assisting childbirth comprising a cup body made of an elastic material, a plurality of recessed portions formed around the inner surface of the cup body in a spaced apart relationship, a suction tube connected to the bottom of the cup body, and a plurality of passages each communicating one of the recessed portions to the suction tube.
Inventors
- 👤 K Kawai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:47
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/42; A61B17/44; A61B17/442
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
87 words
A soft obstetric vacuum cup for assisting in childbirth, comprising a cup-shaped member made of an elastic material, means forming a plurality of mutually isolated bowl-shaped recesses distributed in and around the inner surface of the cup-shaped member in spaced relationship, a suction tUbe connected to the bottom of said cup-shaped member, and a plurality of passages formed entirely within and extending through the wall of said cup-shaped member and communicatively connecting said recesses to said suction tube permitting suction to be present only at said recesses.
Claim 2
Dependent Claim
87 words
A soft obstetric vacuum cup for assisting in childbirth, comprising a cup-shaped member made of an elastic material, means forming a plurality of mutually isolated bowl-shaped recesses distributed in and around the inner surface of the cup-shaped member in spaced relationship, a suction tUbe connected to the bottom of said cup-shaped member, and a plurality of passages formed entirely within and extending through the wall of said cup-shaped member and communicatively connecting said recesses to said suction tube permitting suction to be present only at said recesses.
Claim 3
Dependent Claim
22 words
A soft obstetric vacuum cup as defined in claim 1 wherein said recesses are formed along the periphery of said cup-shaped member.
Claim 4
Dependent Claim
23 words
A soft obstetric vacuum cup as defined in claim 1 wherein each of said passages comprises a tube embedded within said cup-shaped member.
Claim 5
Dependent Claim
24 words
A soft obstetric vacuum cup as defined in claim 2 wherein said passages are radially distributed about the interior wall of said cup-shaped member.
Claim 6
Dependent Claim
32 words
A soft obstetric vacuum cup as set forth in claim 1 wherein said plurality of recesses are formed along the inner surface of said cup-shaped member near the upper peripheral portion thereof.
Claim 7
Dependent Claim
42 words
A soft obstetric vacuum cup as set forth in claim 1 wherein said suction tube is connected to an evacuation device through an extension tube and a release valve for releasing the negative pressure within said cup-shaped member to the outside atmosphere.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |