US4055167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curettement device
Assignee: Individual
•
Filing: 1976-04-23
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Granted: 1977-10-25
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Expires: 1996-04-23
Abstract
Abstract A cannula for uterine curettement comprising a straight, rigid tube proportioned for insertion into the uterus, a flattened, closed end at the insert end of the tube and staggered openings at opposing sides of the tube adjacent to the insert end. A handle is provided at the opposite end to facilitate manipulation of the tube when it is in use and a short reach of the tube extends beyond this handle for attachment to the suction tube of an aspirator.
Inventors
- 👤 Dell L. Bernstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:11
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320708; A61M; A61M1/00; A61M1/84; A61M25/00; A61M25/0067; A61M25/0068; A61M25/007
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
154 words
A cannula for uterine curettement comprising: a. a straight, rigid tube proportioned for insertion into the uterus with an excess of length to provide a handle section and a connective section therebeyond for the connection of a suction tube; b. an enlargement at the handle section to facilitate gripping of the tube; c. a flattened, thin walled, closed end permanently affixed at the insert end of the tube; and d. a first opening, having a width slightly less than the tube diameter, immediately adjacent to the flattened end of the tube and a second opening of approximately the dimensions of the first opening, axially spaced along the tube from the first opening and on the opposite side of the tube from the first opening with the edges of the openings squared, moderately sharp and generally smooth to facilitate curettement action, and with the openings proportioned to receive blood, serum and tissue from the uterus.
Claim 2
Dependent Claim
154 words
A cannula for uterine curettement comprising: a. a straight, rigid tube proportioned for insertion into the uterus with an excess of length to provide a handle section and a connective section therebeyond for the connection of a suction tube; b. an enlargement at the handle section to facilitate gripping of the tube; c. a flattened, thin walled, closed end permanently affixed at the insert end of the tube; and d. a first opening, having a width slightly less than the tube diameter, immediately adjacent to the flattened end of the tube and a second opening of approximately the dimensions of the first opening, axially spaced along the tube from the first opening and on the opposite side of the tube from the first opening with the edges of the openings squared, moderately sharp and generally smooth to facilitate curettement action, and with the openings proportioned to receive blood, serum and tissue from the uterus.
Claim 3
Dependent Claim
34 words
The cannula defined in claim 1 wherein the tube has a circular cross section and the width of each opening is through an approximate 150 degree arc to approach the diameter of the tube.
Claim 4
Dependent Claim
43 words
The cannula defined in claim 2, wherein each opening has two parallel side edges along the cannula axis, and two parallel end edges perpendicular to the cannula axis, with the length of the side edges approximately twice the length of the end edges.
Claim 5
Dependent Claim
57 words
The cannula defined in claim 3, wherein the insert end is formed as a thin disc closing the tube and forming the adjacent edge of said first opening, with the edge of the disc end being rounded defining a circular edge of the opening and being axially squared, moderately sharp and smooth to facilitate curettement action. action.
Claim 6
Dependent Claim
64 words
The cannula defined in claim 3, including said second opening at the opposite side of the tube is axially staggered with respect to the first and spaced from and closely adjacent to the first, and with a neck portion in the wall of the tube at each side of and between the openings proportioned to provide adequate structural strength and rigidity to the unit.
Claim 7
Dependent Claim
23 words
The cannula defined in claim 1, wherein the handle is an ovoid form to facilitate manipulation and rotating the same when in use.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |