US3774613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction curettage
Assignee: SCITRON CORP
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Filing: 1971-12-30
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Granted: 1973-11-27
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Expires: 1991-12-30
Abstract
Abstract Apparatus and method for the safe and rapid vacuum evacuation of the female uterus in an abortion procedure which can be performed in substantially any location having a supply of fluid flowing under pressure as the power source. The apparatus includes a thin hollow flexible catheter of a size to permit the operation to be performed without the necessity of dilating the cervix either mechanically or by the use of medicines.
Inventors
- 👤 J Woods
- 👤 R White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:39
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/71; A61M1/79; A61M1/80; A61M1/804
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
180 words
A portable suction curettage for evacuating matter from an undilated female uterus, said curettage comprising an elongated thin flexible catheter defined by a cylindrical wall having a closed proximal end and an open distal end, at least one opening in said wall adjacent to said proximal end only and providing communication between the interior and exterior of said catheter, said wall otherwise being imperforate, flexible tubing means having one end connected to the open distal end of said catheter, a venturi tube having a high pressure inlet portion communicating with a restricted throat and a low pressure discharge portion, means for connecting said venturi tube to a source of fluid under pressure, said venturi tube having an orifice providing communication between said inlet portion and the end of said low pressure discharge portion and the exterior of said venturi tube, the opposite end of said tubing means being connected to said venturi tube in communication with said orifice, whereby fluid under pressure flowing through said venturi tube creates a subatmospheric pressure for evacuating matter through the openings in said wall.
Claim 2
Dependent Claim
180 words
A portable suction curettage for evacuating matter from an undilated female uterus, said curettage comprising an elongated thin flexible catheter defined by a cylindrical wall having a closed proximal end and an open distal end, at least one opening in said wall adjacent to said proximal end only and providing communication between the interior and exterior of said catheter, said wall otherwise being imperforate, flexible tubing means having one end connected to the open distal end of said catheter, a venturi tube having a high pressure inlet portion communicating with a restricted throat and a low pressure discharge portion, means for connecting said venturi tube to a source of fluid under pressure, said venturi tube having an orifice providing communication between said inlet portion and the end of said low pressure discharge portion and the exterior of said venturi tube, the opposite end of said tubing means being connected to said venturi tube in communication with said orifice, whereby fluid under pressure flowing through said venturi tube creates a subatmospheric pressure for evacuating matter through the openings in said wall.
Claim 3
Dependent Claim
36 words
The structure of claim 1 in which said catheter is of a diameter to be received within the cervical opening of the uterus without dilatiOn thereof so that the cervix provides a seal about said catheter.
Claim 4
Dependent Claim
19 words
The structure of claim 1 in which said flexible tubing means includes a collection bottle intermediate the ends thereof.
Claim 5
Dependent Claim
61 words
The structure of claim 3 in which said flexible tubing means includes a first elbow extending into said collection bottle, a filter trap connected to said first elbow within said bottle, a second elbow extending into said bottle in a position remote from said filter trap, and said second elbow connected to the flexible tubing means leading to said venturi tube.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |