US3576186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic component for intrauterine contraceptive device
Assignee: Individual
•
Filing: 1969-01-10
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Granted: 1971-04-27
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Expires: 1989-01-10
Abstract
Abstract An intrauterine contraceptive device having a loop that is normally closed during use and when properly positioned within the uterus but capable of opening when not properly positioned within the uterus. A metallic component which may form a part of the releasable structure of the loop enhances the contraceptive effect of the device.
Inventors
- 👤 Ralph R Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:49
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/14; A61F6/142; A61F6/144
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
171 words
A device for intrauterine use comprising: a generally U-shaped loop having a bight for disposition across the cervix and a pair of arms extending upwardly from the bight, each arm having a head for disposition in the mouth of a corresponding fallopian tube, there being an outwardly bulged portion in each arm respectively adjacent said bight disposed for engagement with the uterus and for actuation inwardly by the latter at the zones of engagement therebetween during contraction of the uterine muscles; and structure on said arms remote from said bight for preventing overlapping and crossing of the arms at said structure in response to muscular activity of the uterus, said structure and said arms forming a closed ring when the device is in the uterus, said structure being releasable, presenting an open ring when the arms are permitted to spread apart at said structure, said structure including a protuberance on one of the arms extending toward the other of said arms, and a protuberance-receiving means on the other of said arms.
Claim 2
Independent Claim
171 words
A device for intrauterine use comprising: a generally U-shaped loop having a bight for disposition across the cervix and a pair of arms extending upwardly from the bight, each arm having a head for disposition in the mouth of a corresponding fallopian tube, there being an outwardly bulged portion in each arm respectively adjacent said bight disposed for engagement with the uterus and for actuation inwardly by the latter at the zones of engagement therebetween during contraction of the uterine muscles; and structure on said arms remote from said bight for preventing overlapping and crossing of the arms at said structure in response to muscular activity of the uterus, said structure and said arms forming a closed ring when the device is in the uterus, said structure being releasable, presenting an open ring when the arms are permitted to spread apart at said structure, said structure including a protuberance on one of the arms extending toward the other of said arms, and a protuberance-receiving means on the other of said arms.
Claim 3
Dependent Claim
24 words
A device for intrauterine use as claimed in claim 1, said one arm being provided with a band, the protuberance being on the band.
Claim 4
Dependent Claim
31 words
A device for intrauterine use as claimed in claim 2, said other arm being provided with a band, said protuberance-receiving means being an opening in the band of the other arm.
Claim 5
Dependent Claim
18 words
A device for intrauterine use as claimed in claim 3, at least one of said bands being metal.
Claim 6
Dependent Claim
27 words
A device for intrauterine use as claimed in claim 1, said other arm being provided with a band, said protuberance-receiving means being an opening in the band.
Claim 7
Dependent Claim
93 words
In an intrauterine device having a pair of interconnected arms provided with juxtaposed portions remote from the interconnection of the arms to present a closed loop when the portions are juxtaposed, structure on said arms at said portions for preventing overlapping and crossing of the arms, said structure including: a protuberance on one of the arms extending toward the other of said arms; and protuberance-receiving means on the other of said arms releasably accepting said protuberance to thereby permit said arms to move apart at said portions thereof and present an open loop.
Claim 8
Dependent Claim
93 words
In an intrauterine device having a pair of interconnected arms provided with juxtaposed portions remote from the interconnection of the arms to present a closed loop when the portions are juxtaposed, structure on said arms at said portions for preventing overlapping and crossing of the arms, said structure including: a protuberance on one of the arms extending toward the other of said arms; and protuberance-receiving means on the other of said arms releasably accepting said protuberance to thereby permit said arms to move apart at said portions thereof and present an open loop.
Claim 9
Dependent Claim
23 words
In an intrauterine device as claimed in claim 6, said one arm being provided with a band, the protuberance being on the band.
Claim 10
Dependent Claim
30 words
In an intrauterine device as claimed in claim 7, said other arm being provided with a band, said protuberance-receiving means being an opening in the band of the other arm.
Claim 11
Dependent Claim
26 words
In an intrauterine device as claimed in claim 6, said other arm being provided with a band, said protuberance-receiving means being an opening in the band.
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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |