US3897751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cage for continuous infusion
Assignee: United States Department of Health and Human Services
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Filing: 1974-07-10
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Granted: 1975-08-05
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Expires: 1994-07-10
Abstract
Abstract An animal cage for use in a laboratory or other similar environment is disclosed. The cage includes a spring and catheter arrangement which allows the animal to have freedom of movement within the cage, while providing for continuous infusion of drugs or radioactive materials. Such infusion may be either the aortic or venous type.
Inventors
- 👤 Pietro M Gullino
- 👤 Flora H Grantham
- 👤 Donald M Hill
- 👤 Jesse Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:09
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/02; A01K1/03; A01K1/031
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
204 words
An animal cage for use in continuous infusion of animals in a laboratory environment, comprising: a square-shaped base; four vertical side walls removably mounted upon said base; preferably a cross-shaped frame mounted on the upper portion of the side walls, one arm of the frame engaging each of the side walls, a vertical hole located at the confluence of the cross arms of the frame, the hole having an interior rim; a horizontal groove in the upper surface of the cross-shaped frame which connects said hole with the intersection of two of the cross arms; a ring and tubing arrangement which extends through said hole with the ring resting on the interior rim in said hole, the tubing extending below the ring and being attached to a spring; a catheter extending from the exterior of the cage through the groove in the cross-shaped frame, then through said ring and tubing arrangement and said spring, said catheter having means at one end outside the cage for connection to a source of infusate and means at the other end for connection to the animal occupying the cage; and a cover for the cage, said cover being releasably attached to the upper edge of the side walls.
Claim 2
Dependent Claim
204 words
An animal cage for use in continuous infusion of animals in a laboratory environment, comprising: a square-shaped base; four vertical side walls removably mounted upon said base; preferably a cross-shaped frame mounted on the upper portion of the side walls, one arm of the frame engaging each of the side walls, a vertical hole located at the confluence of the cross arms of the frame, the hole having an interior rim; a horizontal groove in the upper surface of the cross-shaped frame which connects said hole with the intersection of two of the cross arms; a ring and tubing arrangement which extends through said hole with the ring resting on the interior rim in said hole, the tubing extending below the ring and being attached to a spring; a catheter extending from the exterior of the cage through the groove in the cross-shaped frame, then through said ring and tubing arrangement and said spring, said catheter having means at one end outside the cage for connection to a source of infusate and means at the other end for connection to the animal occupying the cage; and a cover for the cage, said cover being releasably attached to the upper edge of the side walls.
Claim 3
Dependent Claim
23 words
The animal cage of claim 1, further including a small weight attached to the portion of the catheter which is outside the cage.
Claim 4
Dependent Claim
23 words
The animal cage of claim 1, wherein a space is provided between the cage cover and the upper edge of the side walls.
Claim 5
Dependent Claim
50 words
The animal cage of claim 1, wherein the base includes a grooved rim extending around the inner circumference of the base, said grooved rim receiving on its lower edge a drawer mounted within the base; and wherein a wire mesh screen rests upon the upper edge of said grooved rim.
Claim 6
Dependent Claim
33 words
The animal cage of claim 1, wherein a water bottle is secured to the exterior of one side wall, with means for providing water from the bottle to the animal within the cage.
Claim 7
Dependent Claim
23 words
The animal cage of claim 1, wherein the base, the side walls, the cross-shaped frame and the cover are constructed preferably of fiberglass.
Claim 8
Dependent Claim
27 words
The animal cage of claim 1, wherein the means for connecting the catheter to the animal includes means for providing infusion through the aorta of the animal.
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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |