US3920995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive material generator
Assignee: ER Squibb and Sons LLC
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Filing: 1974-05-20
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Granted: 1975-11-18
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Expires: 1994-05-20
Abstract
Abstract A radioactive material generator includes radioactive material in a column, which column is connected to inlet and outlet conduits, the generator being embedded in a lead casing. The inlet and outlet conduits extend through the casing and are topped by pierceable closure caps. A fitting, containing means to connect an eluent supply and an eluate container, is adapted to pierce the closure caps. The lead casing and the fitting are compatibly contoured such that they will fit only if properly aligned with respect to each other.
Inventors
- 👤 Thomas V Czaplinski
- 👤 Bernard J Bolter
- 👤 Robert E Heyer
- 👤 Gerald A Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:46
CPC Classifications
G; G21; G21G; G21G4/00; G21G4/04; G21G4/06; G21G1/00; G21G1/0005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
195 words
A generator for sterile, elutable radioactive material which comprises a hollow column containing elutable radioactive material, said column including inlet and outlet ports which are each in communication with one end of inlet and outlet conduits respectively, the other ends of said conduits being terminated by pierceable closure caps, which caps prevent the inflow of contaminents through said conduits, said column, inlet and outlet conduits and caps being embedded in a casing adapted to permit the caps to be pierced, a fitting adapted to be joined to said casing, means to properly align said fitting on said casing to effect joinder therebetween, said fitting including means to pierce said caps, and said fitting including means in communication with said piercing means for the cap on said inlet conduit to connect a container of eluent, said eluent being passable through said inlet conduit into said column, means in communication with said piercing means for the cap on said outlet conduit to connect a collecting container for eluate to said fitting, and means to establish a pressure differential between said eluent and collecting containers causing the eluent to flow through said conduits and into said collecting container.
Claim 2
Dependent Claim
195 words
A generator for sterile, elutable radioactive material which comprises a hollow column containing elutable radioactive material, said column including inlet and outlet ports which are each in communication with one end of inlet and outlet conduits respectively, the other ends of said conduits being terminated by pierceable closure caps, which caps prevent the inflow of contaminents through said conduits, said column, inlet and outlet conduits and caps being embedded in a casing adapted to permit the caps to be pierced, a fitting adapted to be joined to said casing, means to properly align said fitting on said casing to effect joinder therebetween, said fitting including means to pierce said caps, and said fitting including means in communication with said piercing means for the cap on said inlet conduit to connect a container of eluent, said eluent being passable through said inlet conduit into said column, means in communication with said piercing means for the cap on said outlet conduit to connect a collecting container for eluate to said fitting, and means to establish a pressure differential between said eluent and collecting containers causing the eluent to flow through said conduits and into said collecting container.
Claim 3
Dependent Claim
64 words
The generator of claim 1 wherein the means to join said casing and said fitting in proper alignment comprise a boss on said fitting adapted to be received in an opening in said casing, a guide segment connected to said boss and a mating segment connected to said casing, whereby said fitting and said casing can be joined only when said segments are mated.
Claim 4
Dependent Claim
28 words
The generator of claim 1 wherein said casing is formed of vertically split sections, each section including appropriate interior depressions to accommodate said conduits and said column therein.
Claim 5
Dependent Claim
28 words
The generator of claim 3 wherein said split sections include spaced interior ribs and grooves, there being only one position in which respective grooves and ribs are matable.
Claim 6
Dependent Claim
49 words
The generator of claim 1 including needles, depending from each of said means to connect said container of eluent, and said means to connect said collecting container, each adapted to pierce the respective caps, thereby to define a complete fluid flow path between said eluent and said collecting containers.
Claim 7
Dependent Claim
21 words
The generator of claim 1 including means to admit air into said eluent container upon the evacuation of the eluent therefrom.
Claim 8
Dependent Claim
25 words
The generator of claim 1 wherein the means to establish a pressure differential between said eluent and collecting containers is an evacuated eluate collecting container.
References Cited (Backward Citations)
US3774035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |