US4851702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation shield
Assignee: Brandeis University
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Filing: 1987-12-09
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Granted: 1989-07-25
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Expires: 2007-12-09
Abstract
Abstract A radiation shield suitable for preventing radiation and radioisotopes from reaching or contacting a person using a vessel containing a radioactive solution. The shield includes a radiopaque container having a top and a bottom opening, and a means for supporting the vessel within the container. The container reduces emission of radiation through the sides of the vessel.
Inventors
- 👤 Daniel Perlman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:12
CPC Classifications
G; G21; G21F; G21F5/00; G21F5/015; G21F1/00; G21F1/02; G21F1/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
67 words
A radiation shield suitable for preventing radiation or radioisotopes from reaching or contacting a person using a vessel containing a radioactive solution, said shield comprising: a radiopaque container having a top and a bottom opening; and means for supporting said vessel within said container without said means blocking said top or bottom opening, wherein said container reduces emission of said radiation through the sides of said vessel.
Claim 2
Dependent Claim
67 words
A radiation shield suitable for preventing radiation or radioisotopes from reaching or contacting a person using a vessel containing a radioactive solution, said shield comprising: a radiopaque container having a top and a bottom opening; and means for supporting said vessel within said container without said means blocking said top or bottom opening, wherein said container reduces emission of said radiation through the sides of said vessel.
Claim 3
Dependent Claim
36 words
The radiation shield of claim 1 wherein said radiopaque container comprises means to permit incubation liquid to directly enter the bottom opening of said container and surround that portion of said vessel containing said radioactive solution.
Claim 4
Dependent Claim
17 words
The radiation shield of claim 1 wherein said container is a sleeve that fits over said vessel.
Claim 5
Dependent Claim
29 words
The radiation shield of claim 3 wherein said sleeve has a substantially flat bottom surface for allowing said sleeve to rest in a free-standing position on a flat surface.
Claim 6
Dependent Claim
47 words
The radiation shield of claim 3 wherein said container is sized and shaped to hold a microtube having a lid and comprises a ridge or dimples formed along said top opening to elevate the lid of the microtube from the sleeve to facilitate access to the lid.
Claim 7
Dependent Claim
42 words
The radiation shield of claim 3 wherein said sleeve comprises a flange for allowing suspension of said sleeve in a rack, wherein liquid may enter the bottom opening of said sleeve and surround that portion of said vessel containing said radioactive solution.
Claim 8
Dependent Claim
31 words
The radiation shield of claim 1 wherein said radiopaque container comprises an incubation rack for supporting a plurality of vessels and a radiopaque shield formed along the perimeter of said rack.
Claim 9
Dependent Claim
19 words
The radiation shield of claim 7 further comprising a radiopaque cover for shielding radiation emanating through said top opening.
Claim 10
Dependent Claim
21 words
The radiation shield of claim 1 wherein said radiopaque container comprises a block of radiopaque material having a plurality of bores.
Claim 11
Dependent Claim
11 words
The radiation shield of claim 1 wherein said container is transparent.
Claim 12
Dependent Claim
20 words
The radiation shield of claim 1 wherein said container is fabricated using acrylic, polycarbonate or other subtantially radiopaque plastic material.
Claim 13
Independent Claim
97 words
A method for preventing radiation or radioisotopes from reaching or contacting a person using a vessel containing a radioactive solution, said method comprising the steps of: providing a radiation shield having a radiopaque container with a top and bottom opening; and means for supporting said vessel within said container without blocking said top or bottom openings, wherein said container reduces emission of said radiation through the sides of said vessel; placing said vessel within said radiopaque container; and transporting said vessel from a first position to a second position by holding said container without touching said vessel.
Claim 14
Independent Claim
97 words
A method for preventing radiation or radioisotopes from reaching or contacting a person using a vessel containing a radioactive solution, said method comprising the steps of: providing a radiation shield having a radiopaque container with a top and bottom opening; and means for supporting said vessel within said container without blocking said top or bottom openings, wherein said container reduces emission of said radiation through the sides of said vessel; placing said vessel within said radiopaque container; and transporting said vessel from a first position to a second position by holding said container without touching said vessel.
Claim 15
Dependent Claim
33 words
The method of claim 12 further comprising the step of placing said radiopaque container comprising said vessel within an incubation liquid whereby said vessel is caused to attain the temperature of said liquid.
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) | 1992-07-24 | 1993-01-23 | 1993-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-24 | 1997-01-23 | 1997-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-24 | 2001-01-23 | 2001-07-25 | $7700.00 | Window Closed / Lapsed |