US3575160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instruments for administering fluids into the intestinal tract per rectum
Assignee: Individual
•
Filing: 1968-11-13
•
Granted: 1971-04-20
•
Expires: 1988-11-13
Abstract
No abstract record available.
Inventors
- 👤 Alexander A Vass
- 👤 Clara Vass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:56
CPC Classifications
A; A61; A61M; A61M31/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
149 words
An instrument for administering fluids into the intestinal tract per rectum, comprising a tube having a proximal, body entering end, means surrounding said tube distally of said end for sealing the anal orifice of said rectum, said means comprising a first enlargement surrounding said tube and having a proximal surface substantially radially normal to said tube, said surface arranged to contact the marginal body edge portion surrounding the anal orifice, said surface being formed with an edge curving proximally to define a generally hollow recess adapted to be pressed into said marginal body portion, whereby said orifice is sealed when said end is disposed within said rectum, and means on said tube disposed distally of said first enlargement and of greater dimension than said first enlargement engageable in body portions spaced from said anal orifice and holdable by said body portions for immobilizing said instrument in said sealing position.
Claim 2
Dependent Claim
149 words
An instrument for administering fluids into the intestinal tract per rectum, comprising a tube having a proximal, body entering end, means surrounding said tube distally of said end for sealing the anal orifice of said rectum, said means comprising a first enlargement surrounding said tube and having a proximal surface substantially radially normal to said tube, said surface arranged to contact the marginal body edge portion surrounding the anal orifice, said surface being formed with an edge curving proximally to define a generally hollow recess adapted to be pressed into said marginal body portion, whereby said orifice is sealed when said end is disposed within said rectum, and means on said tube disposed distally of said first enlargement and of greater dimension than said first enlargement engageable in body portions spaced from said anal orifice and holdable by said body portions for immobilizing said instrument in said sealing position.
Claim 3
Dependent Claim
47 words
The instrument of claim 1, wherein a conical, proximally tapering enlargement of the wall of said tube rises from a midpoint of said surface, concentrically with said tube and adapted to enter the anal canal when said surface is brought into contact with said marginal body portion.
Claim 4
Dependent Claim
22 words
The instrument of claim 2, wherein said conical enlargement is formed with a shoulder surrounding said tube adjacent the proximal end thereof.
Claim 5
Dependent Claim
46 words
The instrument of claim 3, wherein said conical enlargement is formed with a proximally facing shoulder substantially normal to the longitudinal axis of said tube in spaced relation to its proximal end, to thereby provide a proximal conical portion of reduced cross section around said tube.
Claim 6
Dependent Claim
54 words
The instrument of claim 1, wherein said body engageable means comprises a second enlargement surrounding said tube, of greater area than said surface, said second enlargement substantially radially normal to the longitudinal axis of said tube, said second enlargement having opposed portions engageable by portions of the body distally spaced from said anal orifice.
Claim 7
Dependent Claim
33 words
The instrument of claim 5, wherein said second enlargement comprises a substantially heart-shaped plate and includes lobe portions spaced by a cleft formed in the edge of said plate, said lobes proximally curved.
Claim 8
Dependent Claim
22 words
The instrument of claim 6, wherein the marginal edge portions of said plate are proximally curved to form a raised edge therefor.
Claim 9
Dependent Claim
28 words
The instrument of claim 6, wherein said anal sealing enlargement comprises a stud integral with and rising from a midpoint of said plate and concentric with said tube.
Claim 10
Dependent Claim
16 words
The instrument of claim 8, wherein a proximally tapering ring is fitted about said cylindrical stud.
Claim 11
Dependent Claim
24 words
The instrument of claim 6, wherein said first enlargement having said anal sealing surface extends and tapers proximally from a midpoint of said plate.
Claim 12
Dependent Claim
35 words
The instrument of claim 1, wherein said body entering end is formed with a terminal bulbous enlargement forming a body entering head, said head formed with an integral hollow stem portion connected with said tube.
Claim 13
Dependent Claim
94 words
The instrument of claim 11, wherein said head is of substantially spherical shape and is formed with a bore of greater cross section than said tube and disposed with its longitudinal axis at an angle to the longitudinal axis of said tube, to thereby provide an obliquely disposed opening for said head bore. 13. The instrument of claim 6, wherein a collar is removably fitted on said tube against the distal surface of said plate, said collar having diametrically opposed extensions, one of said extensions being longer than the other; said extensions curved proximally.
Claim 14
Dependent Claim
33 words
The instrument of claim 13, wherein means are provided for interengaging said collar and said plate when said longer extension is in said overlapping position, against rotation of said collar around said tube.
Claim 15
Dependent Claim
66 words
The instrument of claim 14, wherein said interengaging means comprises a circular flange on the distal face of said plate concentric with said tube and spaced therefrom a distance to accommodate a marginal edge portion of said collar and cooperating interengageable detent recess and detent projection formed on the inner face of said flange and the outer surface of said marginal edge portion of said collar.
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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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |