Patent US4038978A successfully refreshed from Google Patents.
US4038978A
Expired / Lapsed
US
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Intrauterine device
Assignee: Individual
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Filing: 1975-02-13
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Granted: 1977-08-02
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Expires: 1995-02-13
Abstract
Abstract An intrauterine device providing a membrane to cover substantially the entire surface of the uterine cavity, said device having a Y- or V-shaped resilient member with two diverging arms, a membrane covering the entire area between the diverging arms and, in addition, extending above an imaginary line passing through the terminal ends of the arms, and a flexible tail or string connected to the intersection of the arms for aiding in the removal of the device from the uterus when desired. The ends of the diverging arms have enlarged end portions and the arms are of unequal length so that the arms may be resiliently collapsed and placed in a tubular inserter with the enlarged end portions longitudinally spaced in the inserter.
Inventors
- 👤 John McLean Morris
- 👤 John P. Bennett
- 👤 Josef E. Kercso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:49
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/14; A61F6/142; A61F6/144; A61F6/148
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
141 words
An intrauterine device comprising a resilient Y- or V-shaped member, said resilient member having two arms gradually and continuously diverging upwardly and outwardly from an intersection thereof adjacent the base portion of said resilient member; each of said arms terminating, at the free ends thereof in an enlarged end portion having surfaces adapted to contact the adjacent wall of a uterus when said intrauterine device is in position within the uterus, said contact being maintained during use by the resilient nature of said resilient member; said arms being sufficiently resilient so said arms can be urged together during positioning of said intrauterine device in a tubular inserter for inserting said intrauterine device into the uterus, said arms being of unequal length whereby when said device is positioned within the inserter said end portions reside in said inserter one above the other.
Claim 2
Dependent Claim
141 words
An intrauterine device comprising a resilient Y- or V-shaped member, said resilient member having two arms gradually and continuously diverging upwardly and outwardly from an intersection thereof adjacent the base portion of said resilient member; each of said arms terminating, at the free ends thereof in an enlarged end portion having surfaces adapted to contact the adjacent wall of a uterus when said intrauterine device is in position within the uterus, said contact being maintained during use by the resilient nature of said resilient member; said arms being sufficiently resilient so said arms can be urged together during positioning of said intrauterine device in a tubular inserter for inserting said intrauterine device into the uterus, said arms being of unequal length whereby when said device is positioned within the inserter said end portions reside in said inserter one above the other.
Claim 3
Dependent Claim
30 words
The device of claim 1 wherein said resilient member is encased in a medical grade or clean grade plastic or rubber material, and said resilient member is stainless steel wire.
Claim 4
Dependent Claim
22 words
The intrauterine device of claim 1 where a unitary membrane extends between said arms and past the end portions of said arms.
Claim 5
Dependent Claim
35 words
The device of claim 1 further including a flexible string or tail attached to said intersection, said string being adapted to extend outwardly through the cervix when said device is in position within the uterus.
Claim 6
Dependent Claim
37 words
The device of claim 1 further including a plurality of flexible spurs attached to said arms, said spurs adapted to prevent the explusion of said intrauterine device when said intrauterine device is in position within the uterus.
Claim 7
Dependent Claim
20 words
The device of claim 1 wherein the portion of said membrane extending above said bulbous end portions is substantially rectangular.
Claim 8
Dependent Claim
126 words
In combination, an intrauterine device, and an inserter therefor, said inserter comprising a hollow tubular member adapted to be inserted into a uterus and a pusher adapted to telescope within the tubular member and eject a device therein, said device comprising a V- or Y-shaped member having resilient arms extending from an intersection therebetween, said arms being resiliently collapsible together so that said device may be positioned in said tubular member, said arms at the free ends thereof terminating in enlarged rounded end portions, said arms being of unequal length whereby when said arms are collapsed when said device is positioned within said tubular member said enlarged end portions are received in said tubular member one behind the other along the length of said tubular member.
Claim 9
Dependent Claim
126 words
In combination, an intrauterine device, and an inserter therefor, said inserter comprising a hollow tubular member adapted to be inserted into a uterus and a pusher adapted to telescope within the tubular member and eject a device therein, said device comprising a V- or Y-shaped member having resilient arms extending from an intersection therebetween, said arms being resiliently collapsible together so that said device may be positioned in said tubular member, said arms at the free ends thereof terminating in enlarged rounded end portions, said arms being of unequal length whereby when said arms are collapsed when said device is positioned within said tubular member said enlarged end portions are received in said tubular member one behind the other along the length of said tubular member.
Claim 10
Dependent Claim
32 words
The combination of claim 7 further including a thin flexible membrane extending between said arms and covering the entire area therebetween, said membrane further extending beyond the end portions of said arms.
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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) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |