Patent US3645258A successfully refreshed from Google Patents.
US3645258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intrauterine device
Assignee: Individual
•
Filing: 1970-03-17
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Granted: 1972-02-29
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Expires: 1990-03-17
Abstract
Abstract The invention concerns a gynaecologycal device for insertion in a woman''s womb, i.e., an intrauterine device. This device includes a Y-shaped flexible support means, the branches of which are each provided with a fanlike, inwardly extending membrane covering at least part of the space between the two branches. This intrauterine device has the advantage of enabling its part which penetrates into the uterus to unfold after introduction therein so as to cover up practically the whole internal wall of the uterus.
Inventors
- 👤 Charis Aka Charilaos Massouras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:02
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/14; A61F6/142; A61F6/144
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
41 words
An intrauterine device comprising a Y-shaped flexible support having a pair of branches, each of said branches having an inwardly extending membrane covering at least a part of the space between the two branches, the membranes being separate from each other.
Claim 2
Dependent Claim
41 words
An intrauterine device comprising a Y-shaped flexible support having a pair of branches, each of said branches having an inwardly extending membrane covering at least a part of the space between the two branches, the membranes being separate from each other.
Claim 3
Dependent Claim
18 words
A device As claimed in claim 1, and a reinforcing flange along the free edge of each membrane.
Claim 4
Dependent Claim
19 words
A device as claimed in claim 1, the support having a central leg having at least one hole therethrough.
Claim 5
Dependent Claim
18 words
A device as claimed in claim 3, said hole being located in the free end of said leg.
Claim 6
Dependent Claim
18 words
A device as claimed in claim 3, and a thread extending through said hole for retrieving said device.
Claim 7
Dependent Claim
19 words
A device as claimed in claim 1, said support having a central leg having at least one crossbar thereon.
Claim 8
Dependent Claim
18 words
A device as claimed in claim 6, said crossbar being disposed at the free end of said leg.
Claim 9
Dependent Claim
28 words
A device as claimed in claim 1, said support having a central leg and having a plate carried by said leg at a right angle to said leg.
Claim 10
Dependent Claim
17 words
A device as claimed in claim 1, said branches extending beyond the membranes in flexible filamentary extensions.
Claim 11
Dependent Claim
15 words
A device as claimed in claim 9, said extensions being substantially thinner than said branches.
Claim 12
Dependent Claim
30 words
A device as claimed in claim 1, said support having a central leg and a sliding block slidably mounted on said leg to fold together the branches of the support.
Claim 13
Dependent Claim
83 words
A device as claimed in claim 3, and a tubular sliding block slidably mounted on said leg to fold said branches toward each other, and a plate secured to said tubular sliding block at a right angle to said leg, said tubular sliding block having a crosswise perforation that may be aligned with said hole to fix the position of the sliding block and plate along said leg upon insertion of a member through the holes of said leg and tubular sliding block.
Claim 14
Dependent Claim
30 words
A device as claimed in claim 12, there being a plurality of said holes through said leg for selective positioning of said tubular sliding block and plate along said leg.
Claim 15
Dependent Claim
11 words
A device as claimed in claim 8, said plate being oval.
Claim 16
Dependent Claim
11 words
A device as claimed in claim 12, said plate being oval.
Claim 17
Dependent Claim
12 words
A device as claimed in claim 1 made of soft plastic material.
Claim 18
Dependent Claim
11 words
A device as claimed in claim 16, said material being polyethylene.
Claim 19
Dependent Claim
17 words
A device as claimed in claim 16 in which said material includes a filler of barium sulfate.
Claim 20
Dependent Claim
10 words
A device as claimed in claim 1 of molded construction.
Claim 21
Dependent Claim
11 words
A device as claimed in claim 1 of injection molded construction.
References Cited (Backward Citations)
US709675A
Cited
US3256878A
Cited
US3291125A
Cited
US3410265A
Cited
US3545439A
Cited
US3507274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |