Patent US2280722A successfully refreshed from Google Patents.
Patent US4578076A successfully refreshed from Google Patents.
US4578076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medicated intracervical and intrauterine devices
Assignee: Population Council
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Filing: 1984-03-20
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Granted: 1986-03-25
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Expires: 2004-03-20
Abstract
Abstract This invention relates to a medicated device for insertion into the uterus or cervix comprising a T-shaped platform and a drug release attachment thereon, the platform having a vertical stem portion with a rounded knob portion at the top thereof and two flat flexible downwardly slanting arms extending from the knob, the arms tapering to a lesser dimension at the end from the knob to the end of the arms and the arms having a downward bend of about 45 DEG -110 DEG proximate the end of each arm.
Inventors
- 👤 Tapani Luukkainen
- 👤 Ahti M. K. Liukkonen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:20
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/14; A61F6/142; A61F6/144; A61D; A61D1/00; A61D1/06; A61K; A61K9/00; A61K9/0012; A61K9/0034; A61K9/0039
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
96 words
A medicated device for retention in the cervix comprising a T-shaped platform, the platform having a vertical stem portion with a drug release attachment thereon, a rounded knob portion at the top thereof and two flat flexible downwardly slanting arms extending from the knob, the arms tapering to a lesser dimension from the knob to the end of the arms, and the ends of the arms having a downward bend of about 45°-110°, said vertical stem being about 18-22 mm in length, and said arms measuring about 5-7 mm from the knob to the downward bend.
Claim 2
Dependent Claim
96 words
A medicated device for retention in the cervix comprising a T-shaped platform, the platform having a vertical stem portion with a drug release attachment thereon, a rounded knob portion at the top thereof and two flat flexible downwardly slanting arms extending from the knob, the arms tapering to a lesser dimension from the knob to the end of the arms, and the ends of the arms having a downward bend of about 45°-110°, said vertical stem being about 18-22 mm in length, and said arms measuring about 5-7 mm from the knob to the downward bend.
Claim 3
Dependent Claim
37 words
The medicated intracervical device as described in claim 1, wherein the drug release attachment tightly secured on the stem portion of the platform comprises a molded sleeve containing a drug which can be delivered through the cervix.
Claim 4
Dependent Claim
22 words
The medicated intracervical device as described in claim 2, wherein the molded sleeve is fitted with a length of drug permeable tubing.
Claim 5
Dependent Claim
24 words
The medicated intracervical device as described in claim 1, wherein the stem has a means for removing the device attached to the bottom end.
Claim 6
Dependent Claim
32 words
The medicated intracervical device as described in claim 2 wherein the downward bend is at an angle of about 90° and is located about 0.5 mm from the end of each arm.
Claim 7
Independent Claim
88 words
A device for retention in the cervix comprising a T-shaped platform having a vertical stem portion with a rounded knob portion at the top thereof and two flat flexible downwardly slanting arms extending from the knob, the arms tapering to a lesser dimension from the knob to the end of the arms, and the ends of the arms having a downward bend of about 45°-110°, said vertical stem being about 18-22 mm in length, and said arms measuring about 5-7 mm from the knob to the downward bend.
Claim 8
Independent Claim
88 words
A device for retention in the cervix comprising a T-shaped platform having a vertical stem portion with a rounded knob portion at the top thereof and two flat flexible downwardly slanting arms extending from the knob, the arms tapering to a lesser dimension from the knob to the end of the arms, and the ends of the arms having a downward bend of about 45°-110°, said vertical stem being about 18-22 mm in length, and said arms measuring about 5-7 mm from the knob to the downward bend.
Claim 9
Dependent Claim
23 words
The intracervical device as described in claim 6, wherein the stem has a means for removing the device attached to the bottom end.
Claim 10
Dependent Claim
31 words
The intracervical device as described in claim 6 wherein the downward bend is at an angle of about 90° and is located about 0.5 mm from the end of each arm.
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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) | 1989-03-24 | 1989-09-23 | 1990-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-24 | 1993-09-23 | 1994-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-24 | 1997-09-23 | 1998-03-25 | $7700.00 | Window Closed / Lapsed |