US4628924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intrauterine contraceptive device
Assignee: Individual
•
Filing: 1984-01-17
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Granted: 1986-12-16
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Expires: 2004-01-17
Abstract
Abstract The device, intended for insertion by means of a tube, comprises a supporting part having two branches attached to the front end in such a way that they spring apart when the device is pushed out of the tube into the uterus. At the end of each branch is a spherical occluding member, and at the rearward end of the supporting part is an eye through which a thread is looped. In order to achieve gentle sealing solely of the mouths of the Fallopian tubes, as well as to reduce production costs, the occluding members are of soft material and are flexibly connected to the associated branches, while the supporting part and the branches are made in one piece of a resilient but comparatively stiff material.
Inventors
- 👤 Hugo Cimber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:35
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/14; A61F6/142; A61F6/144
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
149 words
An intrauterine contraceptive device of the type intended to be introduced into the uterus by means of a tube, having a supporting part with a proximal and a distal end, and having two branches joined to the proximal end of said supporting part in such a way that said branches spread apart from one another laterally upon ejection from said tube, wherein the improvement comprises; (a) a substantially spherical occluding member made of a soft material and flexibly connected to the end of each of said branches remote from the point of junction thereof with said proximal end of said supporting part, said supporting part and said branches being made in one piece of a comparatively stiff but resilient material; and (b) a connecting piece made of easily deformable, soft material and disposed between each said occluding member and the respective end of the associated one of said branches.
Claim 2
Dependent Claim
149 words
An intrauterine contraceptive device of the type intended to be introduced into the uterus by means of a tube, having a supporting part with a proximal and a distal end, and having two branches joined to the proximal end of said supporting part in such a way that said branches spread apart from one another laterally upon ejection from said tube, wherein the improvement comprises; (a) a substantially spherical occluding member made of a soft material and flexibly connected to the end of each of said branches remote from the point of junction thereof with said proximal end of said supporting part, said supporting part and said branches being made in one piece of a comparatively stiff but resilient material; and (b) a connecting piece made of easily deformable, soft material and disposed between each said occluding member and the respective end of the associated one of said branches.
Claim 3
Dependent Claim
157 words
An intrauterine contraceptive device of the type intended to be introduced into the uterus by means of a tube, having a supporting part with a proximal and a distal end, and having two branches joined to the proximal end of said supporting part in such a way that said branches spread apart from one another laterally upon ejection from said tube, wherein the improvement comprises; (a) a substantially spherical occluding member made of a soft material and flexibly connected to the end of each of said branches remote from the point of junction thereof with said proximal end of said supporting part, said supporting part and said branches being made in one piece of a comparatively stiff but resilient material, said branches being covered with said soft material; and (b) a connecting piece made of easily deformable, soft material and disposed between each said occluding member and the respective end of the associated one of said branches.
Claim 4
Dependent Claim
157 words
An intrauterine contraceptive device of the type intended to be introduced into the uterus by means of a tube, having a supporting part with a proximal and a distal end, and having two branches joined to the proximal end of said supporting part in such a way that said branches spread apart from one another laterally upon ejection from said tube, wherein the improvement comprises; (a) a substantially spherical occluding member made of a soft material and flexibly connected to the end of each of said branches remote from the point of junction thereof with said proximal end of said supporting part, said supporting part and said branches being made in one piece of a comparatively stiff but resilient material, said branches being covered with said soft material; and (b) a connecting piece made of easily deformable, soft material and disposed between each said occluding member and the respective end of the associated one of said branches.
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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) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |