US3858571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cornual plug
Assignee: Individual
•
Filing: 1973-07-02
•
Granted: 1975-01-07
•
Expires: 1993-07-02
Abstract
Abstract An inert cornual plug designed to obstruct entry to the Fallopian tubes of an overall bullet configuration having a coneshaped forward portion that cooperates with the uterine walls and a wire anchoring means extending from about the mid-portion of the plug to secure the plug in position by anchoring it to the cornual area of the uterus, and a technique for its insertion are described. The cornual plug is optionally provided with a pendant string or cord for removal of the device, thus, the device is useful for sterilization or contraception.
Inventors
- 👤 Arthur I Rudolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:19
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/20; A61F6/22; A61F6/225; Y; Y10; Y10S; Y10S604/00; Y10S604/904
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
186 words
A cornual plug adapted to engage and be retained in the cornual area within the human uterus and formed of an inert material compatible with retention therein, comprising a tapered, plug-shaped device having, at one end thereof a cone-shaped end portion that cooperates with the surrounding uterine tissue as the cornual plug is inserted; a means for retaining the plug in removable contact with said cornual area and the surrounding tissue comprising a cavity within the central portion of said device and opening at the end opposite said cone-shaped portion; at least one anchoring wire contained substantially within said cavity; a plurality of apertures between said cavity and the outside surface of said plug, said apertures providing channels for guiding said anchoring wire from said cavity through the wall of said device, said anchoring wire, in its retracted or insertion positIon, extending no further than the outside circumference of said plug, and, in its extended or engaging position, extending beyond the outside circumference of said plug, thereby when extended securing and engaging said plug to the surrounding uterine tissue to retain said plug in proper position.
Claim 2
Dependent Claim
186 words
A cornual plug adapted to engage and be retained in the cornual area within the human uterus and formed of an inert material compatible with retention therein, comprising a tapered, plug-shaped device having, at one end thereof a cone-shaped end portion that cooperates with the surrounding uterine tissue as the cornual plug is inserted; a means for retaining the plug in removable contact with said cornual area and the surrounding tissue comprising a cavity within the central portion of said device and opening at the end opposite said cone-shaped portion; at least one anchoring wire contained substantially within said cavity; a plurality of apertures between said cavity and the outside surface of said plug, said apertures providing channels for guiding said anchoring wire from said cavity through the wall of said device, said anchoring wire, in its retracted or insertion positIon, extending no further than the outside circumference of said plug, and, in its extended or engaging position, extending beyond the outside circumference of said plug, thereby when extended securing and engaging said plug to the surrounding uterine tissue to retain said plug in proper position.
Claim 3
Dependent Claim
22 words
The cornual plug of claim 1 having an annular groove adjacent said cone-shaped end portion, said apertures positioned within said annular groove.
Claim 4
Dependent Claim
30 words
The cornual plug of claim 2 further including a tapered portion opposite said cone-shaped end portion for cooperation and seating upon the insertion tool used to position said cornual plug.
Claim 5
Dependent Claim
72 words
The cornual plug of claim 3 wherein said apertures are opposite each other and directed away from the outside surface of the inside cavity from the forward cone-shaped end portion, and said anchoring wire is a spring-shaped wire having its two end portions extending thru said apertures and the loop portion thereof extending at least partially beyond said cavity opening in a direction away from the taper of said cone-shaped end portion.
Claim 6
Dependent Claim
18 words
The cornual plug of claim 1 wherein said anchoring wire is provided with a pendant inert removal cord.
Claim 7
Independent Claim
238 words
A method of temporarily blocking access to the Fallopian tubes of the human female by securing a cornual plug device to the cornual area of the uterus of said female, said method including the steps of: a. removably attaching a cornual plug device to the distal portion of an insertion tool, said device having a forward cone-shaped tapered section and being provided with anchor wires adjustably extending from the interior portion of said plug to the exterior thereof in a region of said plug spaced from said cone-shaped section; b. inserting said plug and at least a portion of said insertion tool into said uterus; c. positioning said plug into one cornual area of said uterus by manipulation of said insertion tool; d. securing said positioned plug to the surrounding uterine tissue and, at the same time, disengaging said plug from said insertion tool by exerting force against said anchor wires and, in turn, said plug, thereby extending said anchor wires from the interior portion of said plug to the exterior portion thereof and beyond, said anchor wires, disengaging said plug from said insertion tool engaging the adjacent uterine tissue surrounding said plug, thereby attaching said plug to the cornual area of said uterus; e. removing said insertion tool from the uterus; f. repeating steps (a) - (c) thereby securing an additional plug of the type described in step (a) to the other cornual area of said uterus.
Claim 8
Independent Claim
238 words
A method of temporarily blocking access to the Fallopian tubes of the human female by securing a cornual plug device to the cornual area of the uterus of said female, said method including the steps of: a. removably attaching a cornual plug device to the distal portion of an insertion tool, said device having a forward cone-shaped tapered section and being provided with anchor wires adjustably extending from the interior portion of said plug to the exterior thereof in a region of said plug spaced from said cone-shaped section; b. inserting said plug and at least a portion of said insertion tool into said uterus; c. positioning said plug into one cornual area of said uterus by manipulation of said insertion tool; d. securing said positioned plug to the surrounding uterine tissue and, at the same time, disengaging said plug from said insertion tool by exerting force against said anchor wires and, in turn, said plug, thereby extending said anchor wires from the interior portion of said plug to the exterior portion thereof and beyond, said anchor wires, disengaging said plug from said insertion tool engaging the adjacent uterine tissue surrounding said plug, thereby attaching said plug to the cornual area of said uterus; e. removing said insertion tool from the uterus; f. repeating steps (a) - (c) thereby securing an additional plug of the type described in step (a) to the other cornual area of said uterus.
References Cited (Backward Citations)
US3042030A
Cited
US3422813A
Cited
US3404682A
Cited
US3472231A
Cited
US3467090A
Cited
US3463141A
Cited
US3680542A
Cited
US3675642A
Cited
US3768102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |