US3769980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical instruments
Assignee: MEDICAL CONCEPTS Inc
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Filing: 1971-06-28
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Granted: 1973-11-06
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Expires: 1991-06-28
Abstract
Abstract A combination of disposable medical instruments is provided which can be used when performing an abortion including a speculum comprising metal jaw members and disposable plastic tip members. The plastic tip members are fitted on the jaw members in snap-fit relationship and are shaped so that they adequately expose the cervix and tend to bring it forward toward the vaginal opening. A disposable curette or cannula for a suction aspirator is also provided and comprises a tube of plastic material which is sufficiently flexible to permit relatively easy bending of the tube during use and yet sufficiently rigid to maintain the desired tubular configuration during such bending. The tube is provided at its operative end with a pair of holes on opposite sides thereof, each of a size sufficient to pass the embryonic tissue therethrough.
Inventors
- 👤 H Karman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:26
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/007; A61B; A61B1/00; A61B1/32; A61B17/00; A61B17/42; A61M29/00; A61M29/02; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320708; A61M1/00; A61M1/84
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
181 words
A cannula for a suction aspirator comprising a unitary plastic tube, which tube is sufficiently flexible to permit it to be relatively easily bent and is sufficiently rigid to maintain a tubular configuration during such bending, said tube being open at one end thereof for attachment to the inlet of a suction aspirator or the like, and said tube having first and second openings in the tube wall adjacent the other end of the tube, said openings being generally V-shaped notches with a short upstream edge and a long downstream edge and with the length of the downstream edge of each of the openings in the order of twice the outside diameter of the tube, said openings being spaced axially along the tube from each other and on opposite sides of the tube, with each of said openings extending substantially to the center line of the tube, and with the apex of said second opening substantially opposite the downstream end of said first opening whereby said other end may be bent over at said second opening apex more than 90 degrees.
Claim 2
Dependent Claim
181 words
A cannula for a suction aspirator comprising a unitary plastic tube, which tube is sufficiently flexible to permit it to be relatively easily bent and is sufficiently rigid to maintain a tubular configuration during such bending, said tube being open at one end thereof for attachment to the inlet of a suction aspirator or the like, and said tube having first and second openings in the tube wall adjacent the other end of the tube, said openings being generally V-shaped notches with a short upstream edge and a long downstream edge and with the length of the downstream edge of each of the openings in the order of twice the outside diameter of the tube, said openings being spaced axially along the tube from each other and on opposite sides of the tube, with each of said openings extending substantially to the center line of the tube, and with the apex of said second opening substantially opposite the downstream end of said first opening whereby said other end may be bent over at said second opening apex more than 90 degrees.
Claim 3
Dependent Claim
33 words
A cannula as defined in claim 1 wherein said openings are generally V-shaped notches with the angles between the tube wall and the upstream edge of each of the notches less than 90*.
Claim 4
Dependent Claim
16 words
A cannula as described in claim 1 wherein said other end of said tube is closed.
References Cited (Backward Citations)
SU169180A1
Cited
US1080929A
Cited
US2715899A
Cited
US2819718A
Cited
DE1181368B
Cited
US3230949A
Cited
US3319628A
Cited
US3399668A
Cited
US3448739A
Cited
US3636940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |