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US3757775A
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US
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Intra uterine device
Assignee: GD Searle LLC
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Filing: 1970-12-22
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Granted: 1973-09-11
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Expires: 1990-12-22
Abstract
Abstract An intra-uterine device comprises a substantially flat body member integrally formed of a resilient, flexible, organic plastic and includes a longitudinally extending bridge section and a pair of independently movable legs outwardly diverging from each end thereof. The legs may be partially contracted by a fluid decomposable string interconnecting the ends thereof. A draw string extends from the bridge section and includes an upper inert section and a lower body fluid decomposable section. An alternative structure includes a flexible bridge member and polygonal loops mounted on opposite ends thereof, one of the loops being provided with laterally longitudinally projecting opposite legs having free outer ends. The intra-uterine device is inserted by contracting the legs into side by side juxtaposition and supporting it with the bended apex section forwardmost in the distal end of a tubular instrument, inserting the instrument into the fundus and ejecting the device by advancing a plunger through the instrument. The instrument body member has a forward leading section with a smaller bore than the rear section which terminates in a funnel shaped mouth.
Inventors
- 👤 M Marco
- 👤 J Marco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:06
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/14; A61F6/142
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
65 words
An intra-uterine device comprising a resilient bridge section and a plurality of at least three independently movable resilient flexible legs diverging from the extremities of said bridge section and terminating in free end sections, the length of each of said legs being substantially greater than that of the bridge section and each of said legs being of undulate shape when in its normal unstressed condition.
Claim 2
Dependent Claim
65 words
An intra-uterine device comprising a resilient bridge section and a plurality of at least three independently movable resilient flexible legs diverging from the extremities of said bridge section and terminating in free end sections, the length of each of said legs being substantially greater than that of the bridge section and each of said legs being of undulate shape when in its normal unstressed condition.
Claim 3
Dependent Claim
58 words
A intra-uterine device comprising a resilient bridge section and a plurality of at least three independently movable resilient flexible legs diverging from the extremities of said bridge section and terminating in free end sections which are substantially parallel to said bridge section, the length of each of said legs being substantially greater than that of said bridge section.
Claim 4
Dependent Claim
58 words
A intra-uterine device comprising a resilient bridge section and a plurality of at least three independently movable resilient flexible legs diverging from the extremities of said bridge section and terminating in free end sections which are substantially parallel to said bridge section, the length of each of said legs being substantially greater than that of said bridge section.
Claim 5
Dependent Claim
66 words
An intra-uterine device comprising a resilient bridge section, a plurality of at least three independently movable resilient flexible legs diverging from the extremities of said bridge section and terminating in free end sections, the length of each of said legs being substantially greater than that of the bridge section, and a body fluid decomposable string interconnecting the end of, and partially contracting said plurality of legs.
Claim 6
Dependent Claim
66 words
An intra-uterine device comprising a resilient bridge section, a plurality of at least three independently movable resilient flexible legs diverging from the extremities of said bridge section and terminating in free end sections, the length of each of said legs being substantially greater than that of the bridge section, and a body fluid decomposable string interconnecting the end of, and partially contracting said plurality of legs.
Claim 7
Dependent Claim
19 words
The intra-uterine device of claim 3 including a draw string attached at about the midpoint of the bridge section.
Claim 8
Dependent Claim
22 words
The intra-uterine device of claim 4, wherein said draw string includes an upper inert section and a lower body fluid decomposable section.
Claim 9
Independent Claim
101 words
The method of applying an intra-uterine device including a resilient bridge section and a plurality of at least three independently movable flexible legs diverging from the extremities of said bridge section and terminating in free end sections, comprising the steps of contracting said legs by folding said bridge section at a point between its ends to bring said legs at opposite ends of said bridge section to extend from said bridge section in a common direction, inserting said contracted device with said folded bridge section foremost into the uterine cavity, and thereafter at least partially releasing said legs and bridge section.
Claim 10
Independent Claim
101 words
The method of applying an intra-uterine device including a resilient bridge section and a plurality of at least three independently movable flexible legs diverging from the extremities of said bridge section and terminating in free end sections, comprising the steps of contracting said legs by folding said bridge section at a point between its ends to bring said legs at opposite ends of said bridge section to extend from said bridge section in a common direction, inserting said contracted device with said folded bridge section foremost into the uterine cavity, and thereafter at least partially releasing said legs and bridge section.
References Cited (Backward Citations)
US982996A
Cited
US3467089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |