Patent US3786808A successfully refreshed from Google Patents.
US3786808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intrauterine contraceptive device with scalloped edge appendages
Assignee: AH Robins Co Inc
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Filing: 1971-06-23
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Granted: 1974-01-22
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Expires: 1991-06-23
Abstract
Abstract An intrauterine contraceptive device made from plastic and having a perimetral ring with or without a central membrane and including perimetral appendages having scalloped side edges located on each of the side portions of the perimetral ring. The width of the outer scallops preferably decreases as the locations of the scallops approach the tail portion, providing the IUD with an inverted somewhat pear shaped scalloped outline when viewed in plan. A marker and extraction string or line is secured at the nose portion but can be secured to the tail portion. The scalloped appendages are constructed in the manner of webs which are substantially flat or they can be hollow with a bulbous cross-section. Internal of the perimetral ring is preferably a membrane which may be a single wall or made hollow by having a double wall. The membrane has openings at least adjacent the nose and the tail. The internal membrane can be centrally disposed or made as internally scalloped appendages.
Inventors
- 👤 I Lerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:46
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/14; A61F6/148
Claims Analysis
Total Claims: 70
Claim 1
Independent Claim
58 words
An intrauterine contraceptive device comprising: a central body having a perimetral portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, and elongate appendages extending along at least said two side portions of said perimetral portion, each of said appendages having an undulating smooth scalloped terminal edge configuration.
Claim 2
Dependent Claim
58 words
An intrauterine contraceptive device comprising: a central body having a perimetral portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, and elongate appendages extending along at least said two side portions of said perimetral portion, each of said appendages having an undulating smooth scalloped terminal edge configuration.
Claim 3
Dependent Claim
21 words
A device as defined in claim 1, wherein said appendages are made with a single wall having a substantially flat configuration.
Claim 4
Dependent Claim
23 words
A device as defined in claim 2, wherein said appendages include plural smooth contoured protrusions and are substantially co-planar with said perimetral portion.
Claim 5
Dependent Claim
25 words
a device as defined in claim 3, wherein the protrusions closest to said nose portion are longer than the protrusions closest to said tail portion.
Claim 6
Dependent Claim
22 words
A device as defined in claim 4, wherein pull line means are secured to said intrauterine device to enable removal after insertion.
Claim 7
Dependent Claim
21 words
A device as defined in claim 2, wherein plural side appendages with scalloped edges are provided on each said side portion.
Claim 8
Dependent Claim
30 words
A device as defined in claim 2, wherein said scalloped appendages are made with a single thin substantially flat wall, and plural aPpendages extend from each of said side portions.
Claim 9
Dependent Claim
17 words
A device as defined in claim 1 made from a plastic material comprising an ethylene vinyl copolymer.
Claim 10
Dependent Claim
90 words
An intrauterine contraceptive device comprising: a central body having a perimetral ring-like portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, and at least two appendages each made with a single wall having a substantially flat configuration extending along at least each of said two side portions of said perimetral portion, all of said appendages having a scalloped terminal edge configuration, at least one of said appendages with scalloped edges being provided on the inner perimeter of said ring.
Claim 11
Dependent Claim
90 words
An intrauterine contraceptive device comprising: a central body having a perimetral ring-like portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, and at least two appendages each made with a single wall having a substantially flat configuration extending along at least each of said two side portions of said perimetral portion, all of said appendages having a scalloped terminal edge configuration, at least one of said appendages with scalloped edges being provided on the inner perimeter of said ring.
Claim 12
Dependent Claim
25 words
A device as defined in claim 9, wherein a plurality of said appendages with scalloped edges are provided on the inner perimeter of said ring.
Claim 13
Dependent Claim
25 words
A device as defined in claim 10, wherein said plurality of said appendages have different inclination relative to the planar configuration of the perimetral ring.
Claim 14
Dependent Claim
72 words
An intrauterine contraceptive device comprising: a central body having a perimetral ring-like portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity and at least two appendages each made with a single wall having a substantially flat configuration extending along at least each of said two side portions of said perimetral portion, all of said appendages having a scalloped terminal edge configuration.
Claim 15
Dependent Claim
72 words
An intrauterine contraceptive device comprising: a central body having a perimetral ring-like portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity and at least two appendages each made with a single wall having a substantially flat configuration extending along at least each of said two side portions of said perimetral portion, all of said appendages having a scalloped terminal edge configuration.
Claim 16
Dependent Claim
19 words
A device as defined in claim 12, including thin membrane means across the inner diameter of said perimetral portion.
Claim 17
Dependent Claim
13 words
A device as defined in claim 13, wherein said membrane means is hollow.
Claim 18
Dependent Claim
28 words
A device as defined in claim 13, wherein said membrane means is connected to both side portions and provides openings adjacent said nose portion and said tail portion.
Claim 19
Dependent Claim
13 words
A device as defined in claim 15, wherein said membrane means is hollow.
Claim 20
Dependent Claim
22 words
A device as defined in claim 13, wherein pull line means are secured to said intrauterine device to enable removal after insertion.
Claim 21
Dependent Claim
24 words
A device as defined in claim 13, wherein said membrane means is connected to each side portion via a plurality of narrow membrane portions.
Claim 22
Dependent Claim
28 words
A device as defined in claim 13, wherein a multiplicity of narrow spaced apart membrane portions interconnect a central portion of said membrane means to said perimetral portion.
Claim 23
Dependent Claim
13 words
A device as defined in claim 19, wherein said membrane means is hollow.
Claim 24
Dependent Claim
69 words
An intrauterine contraceptive device comprising: a central body having a perimetral portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, and appendages extending along at least said two side portions of said perimetral portion, each of said appendages having a scalloped terminal edge configuration, each of said scalloped appendages having double walls joined at the outer terminal edge.
Claim 25
Dependent Claim
69 words
An intrauterine contraceptive device comprising: a central body having a perimetral portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, and appendages extending along at least said two side portions of said perimetral portion, each of said appendages having a scalloped terminal edge configuration, each of said scalloped appendages having double walls joined at the outer terminal edge.
Claim 26
Dependent Claim
20 words
A device as defined in claim 21, wherein said scalloped appendages are hollow, providing a sealed chamber in each appendage.
Claim 27
Dependent Claim
25 words
A device as defined in claim 22, wherein said appendages have a cross-section transverse to the planar configuration of the perimetral portion which is bulbous.
Claim 28
Dependent Claim
21 words
A device as defined in claim 23, wherein said appendages include plural protrusions and are substantially co-planar with said perimetral portion.
Claim 29
Dependent Claim
25 words
A device as defined in claim 24, wherein the protrusions closest to said nose portion are longer than the protrusions closest to said tail portion.
Claim 30
Dependent Claim
23 words
An intrauterine device as defined in claim 22, wherein pull line means are secured to said intrauterine device to enable removal after insertion.
Claim 31
Dependent Claim
32 words
A device as defined in claim 22, wherein said perimetral portion is a ring and at least one said appendage with scalloped edges is provided on the inner perimeter of said ring.
Claim 32
Dependent Claim
25 words
A device as defined in claim 27, wherein a plurality oF said appendages with scalloped edges are provided on the inner perimeter of said ring.
Claim 33
Dependent Claim
26 words
A device as defined in claim 28, wherein said plurality of said inner appendages have different inclination relative to the planar configuration of the perimetral ring.
Claim 34
Dependent Claim
19 words
A device as defined in claim 22, including thin membrane means across the inner diameter of said perimetral portion.
Claim 35
Dependent Claim
13 words
A device as defined in claim 30, wherein said membrane means is hollow.
Claim 36
Dependent Claim
28 words
A device as defined in claim 30, wherein said membrane means is connected to both side portions and provides openings adjacent said nose portion and said tail portion.
Claim 37
Dependent Claim
13 words
A device as defined in claim 32, wherein said membrane means is hollow.
Claim 38
Dependent Claim
24 words
A device as defined in claim 30, wherein said membrane means is connected to each side portion via a plurality of narrow membrane portions.
Claim 39
Dependent Claim
28 words
A device as defined in claim 30, wherein a multiplicity of narrow spaced apart membrane portions interconnect a central portion of said membrane means to said perimetral portion.
Claim 40
Dependent Claim
13 words
A device as defined in claim 35, wherein said membrane means is hollow.
Claim 41
Dependent Claim
99 words
An intrauterine contraceptive device comprising: a central body having a perimetral ring-like portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, appendages each having a scalloped terminal edge configuration, extending along at least said two side portions of said perimetral portion, said scalloped appendages being made with a single thin substantially flat wall, and appendages in addition to said scalloped appendages extend from each of said side portions and at least one of said appendages with scalloped edges is provided on the inner perimeter of said perimetral portion.
Claim 42
Dependent Claim
99 words
An intrauterine contraceptive device comprising: a central body having a perimetral ring-like portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, appendages each having a scalloped terminal edge configuration, extending along at least said two side portions of said perimetral portion, said scalloped appendages being made with a single thin substantially flat wall, and appendages in addition to said scalloped appendages extend from each of said side portions and at least one of said appendages with scalloped edges is provided on the inner perimeter of said perimetral portion.
Claim 43
Dependent Claim
25 words
A device as defined in claim 37, wherein a plurality of said appendages with scalloped edges are provided on the inner perimeter of said ring.
Claim 44
Dependent Claim
25 words
A device as defined in claim 38, wherein said plurality of said appendages have different inclination relative to the planar configuration of the perimetral ring.
Claim 45
Dependent Claim
92 words
An intrauterine contraceptive device comprising: a central body having a perimetral ring-like portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, appendages each having a scalloped terminal edge configuration, extending along at least said two side portions of said perimetral portion, said scalloped appendages being made with a single thin substantially flat wall, and appendages in addition to said scalloped appendages extend from each of said side portions, and including thin membrane means across the inner diameter of said perimetral portion.
Claim 46
Dependent Claim
92 words
An intrauterine contraceptive device comprising: a central body having a perimetral ring-like portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, appendages each having a scalloped terminal edge configuration, extending along at least said two side portions of said perimetral portion, said scalloped appendages being made with a single thin substantially flat wall, and appendages in addition to said scalloped appendages extend from each of said side portions, and including thin membrane means across the inner diameter of said perimetral portion.
Claim 47
Dependent Claim
13 words
A device as defined in claim 40, wherein said membrane means is hollow.
Claim 48
Dependent Claim
28 words
A device as defined in claim 40, wherein said membrane means is connected to both side portions and provides openings adjacent said nose portion and said tail portion.
Claim 49
Dependent Claim
13 words
A device as defined in claim 42, wherein said membrane means is hollow.
Claim 50
Dependent Claim
22 words
A device as defined in claim 40, wherein pull line means are secured to said intrauterine device to enable removal after insertion.
Claim 51
Dependent Claim
28 words
A device as defined in claim 40, wherein a multiplicity of narrow spaced apart membrane portions interconnect a central portion of said membrane means to said perimetral portion.
Claim 52
Dependent Claim
13 words
A device as defined in claim 45, wherein said membrane means is hollow.
Claim 53
Dependent Claim
73 words
An intrauterine contraceptive device comprising: a central body having a perimetral portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, and plural appendages each having a scalloped terminal edge configuration, extending along at least each of said two side portions of said perimetral portion, and at least one of said scalloped side appendages is hollow and provided with a sealed chamber therein.
Claim 54
Dependent Claim
73 words
An intrauterine contraceptive device comprising: a central body having a perimetral portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, and plural appendages each having a scalloped terminal edge configuration, extending along at least each of said two side portions of said perimetral portion, and at least one of said scalloped side appendages is hollow and provided with a sealed chamber therein.
Claim 55
Dependent Claim
30 words
A device as defined in claim 47, whereiN said at least one hollow scalloped appendage has a cross-section transverse to the planar configuration of the perimetral portion which is bulbous.
Claim 56
Dependent Claim
13 words
A device as defined in claim 47, wherein said appendages include plural protrusions.
Claim 57
Dependent Claim
25 words
A device as defined in claim 49, wherein the protrusions closest to said nose portion are longer than the protrusions closest to said tail portion.
Claim 58
Dependent Claim
23 words
An intrauterine device as defined in claim 47, wherein pull line means are secured to said intrauterine device to enable removal after insertion.
Claim 59
Dependent Claim
32 words
A device as defined in claim 47, wherein said perimetral portion is a ring and at least one said appendage with scalloped edges is provided on the inner perimeter of said ring.
Claim 60
Dependent Claim
25 words
A device as defined in claim 52, wherein a plurality of said appendages with scalloped edges are provided on the inner perimeter of said ring.
Claim 61
Dependent Claim
26 words
A device as defined in claim 53, wherein said plurality of said inner appendages have different inclination relative to the planar configuration of the perimetral ring.
Claim 62
Dependent Claim
19 words
A device as defined in claim 47, including thin membrane means across the inner diameter of said perimetral portion.
Claim 63
Dependent Claim
13 words
A device as defined in claim 51, wherein said membrane means is hollow.
Claim 64
Dependent Claim
28 words
A device as defined in claim 51, wherein said membrane means is connected to both side portions and provides openings adjacent said nose portion and said tail portion.
Claim 65
Dependent Claim
13 words
A device as defined in claim 57, wherein said membrane means is hollow.
Claim 66
Dependent Claim
28 words
A device as defined in claim 51, wherein a multiplicity of narrow spaced apart membrane portions interconnect a central portion of said membrane means to said perimetral portion.
Claim 67
Dependent Claim
13 words
A device as defined in claim 59, wherein said membrane means is hollow.
Claim 68
Dependent Claim
70 words
An intrauterine contraceptive device comprising: a central body having a ring-like perimetral portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, and appendages extending along at least said two side portions of said perimetral portion, each of said appendages having a scalloped terminal edge configuration, the inner ring perimeter being provided with at least one internally scalloped edge portion.
Claim 69
Dependent Claim
70 words
An intrauterine contraceptive device comprising: a central body having a ring-like perimetral portion with nose, tail and side portions and encompassing an area approximating that of an average normal condition uterine cavity, and appendages extending along at least said two side portions of said perimetral portion, each of said appendages having a scalloped terminal edge configuration, the inner ring perimeter being provided with at least one internally scalloped edge portion.
Claim 70
Dependent Claim
29 words
A device as defined in claim 61, wherein each of said appendages having a scalloped terminal edge configuration are made with a single wall having a substantially flat configuration.
References Cited (Backward Citations)
US1821312A
Cited
US2722766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |