US3598115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intra-uterine contraceptive device
Assignee: Individual
•
Filing: 1969-04-08
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Granted: 1971-08-10
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Expires: 1989-04-08
Abstract
Abstract A contraceptive device has retaining means comprising a barb arranged to penetrate into the muscular wall of the uterus, to prevent accidental loss or ejection of the device. The device may also have an elongated shaft which is slotted transversely to receive a flexible vane. The vane is rolled on the shaft for insertion, and thereafter unrolls to engage the uterine walls. A ball-and-socket connection of the barb and the shaft permits the vane to unroll. The vane may be made of polyethylene, or a silico-organic rubber impregnated with contraceptive hormone chemicals. The vane is transversely slidable in the slot of the shaft to permit proper self-alignment with the form of the individual uterus.
Inventors
- 👤 Herbert W Horne Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:26
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/14; A61F6/148
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
103 words
An intrauterine contraceptive device comprising an elongated member adapted to fit within the human uterus and formed of a material compatible with retention therein, and a barb connected to a forward end of said member and projecting therefrom for penetration into the muscular wall of the uterus to retain the device in place against accidental loss through the cervix, together with a vane attached to said member and having lobes projecting therefrom for engaging the uterine lining, said vane being formed of a flexible material compatible with retention in the uterus, and being foldable about said member to facilitate insertion into the uterus.
Claim 2
Dependent Claim
103 words
An intrauterine contraceptive device comprising an elongated member adapted to fit within the human uterus and formed of a material compatible with retention therein, and a barb connected to a forward end of said member and projecting therefrom for penetration into the muscular wall of the uterus to retain the device in place against accidental loss through the cervix, together with a vane attached to said member and having lobes projecting therefrom for engaging the uterine lining, said vane being formed of a flexible material compatible with retention in the uterus, and being foldable about said member to facilitate insertion into the uterus.
Claim 3
Dependent Claim
24 words
A device as recited in claim 1, in which said member is formed with a transverse slot extending longitudinally therethrough and receiving said vane.
Claim 4
Dependent Claim
54 words
A device as recited in claim 2, in which said lobes of the vane are longer than said slot in a direction longitudinal to said member, said vane having a central portion shorter than said slot and received therein, whereby said vane is transversely slidable in said member but is retained in said slot.
Claim 5
Dependent Claim
31 words
A device as recited in claim 2, in which said vane is formed with a notched central portion received in said slot, whereby said vane is tiltable relative to said member.
Claim 6
Dependent Claim
21 words
A device as recited in claim 1, in which said vane is of a plastic material impregnated with a contraceptive chemical.
Claim 7
Dependent Claim
16 words
A device as recited in claim 5, in which said plastic material is a silico-organic rubber.
Claim 8
Dependent Claim
15 words
A device as recited in claim 5, in which said chemical is a synthetic progestagen.
Claim 9
Dependent Claim
100 words
An intrauterine contraceptive device comprising a shaftlike member adapted to fit within the human uterus and formed of a material compatible with retention therein, and a vane attached to said member and having enlarged, thin, and normally planar lobes projecting from opposite sides thereof for engaging the uterine lining, the lobes comprising a large surface area, tapering to conform to the frontal cross section of the uterus, said vane being formed of a flexible material compatible with retention in the uterus, and being foldable by rolling said lobes about the axis of said member to facilitate insertion iNto the uterus.
Claim 10
Dependent Claim
100 words
An intrauterine contraceptive device comprising a shaftlike member adapted to fit within the human uterus and formed of a material compatible with retention therein, and a vane attached to said member and having enlarged, thin, and normally planar lobes projecting from opposite sides thereof for engaging the uterine lining, the lobes comprising a large surface area, tapering to conform to the frontal cross section of the uterus, said vane being formed of a flexible material compatible with retention in the uterus, and being foldable by rolling said lobes about the axis of said member to facilitate insertion iNto the uterus.
Claim 11
Dependent Claim
24 words
A device as recited in claim 8, in which said member is formed with a transverse slot extending longitudinally therethrough and receiving said vane.
Claim 12
Dependent Claim
54 words
A device as recited in claim 9, in which said lobes of the vane are longer than said slot in a direction longitudinal to said member, said vane having a central portion shorter than said slot and received therein, whereby said vane is transversely slidable in said member but is retained in said slot.
Claim 13
Dependent Claim
17 words
A device as recited in claim 8, in which said vane is formed of a plastic material.
Claim 14
Dependent Claim
17 words
A device as recited in claim 11, in which said vane is impregnated with a contraceptive chemical.
Claim 15
Dependent Claim
16 words
A device as recited in claim 11, in which said plastic material is a silico-organic rubber.
Claim 16
Dependent Claim
15 words
A device as recited in claim 12, in which said chemical is a synthetic progestagen.
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |