Patent US5227627A successfully refreshed from Google Patents.
US5227627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Animal body parts phantom
Assignee: HER MAJESTY IN RIGHT OF CANADA AS REPRESENTED BY MINISTRE OF HEALTH AND WELFARE CANADA
•
Filing: 1991-07-16
•
Granted: 1993-07-13
•
Expires: 2011-07-16
Abstract
Abstract An animal body parts phantom comprised of a substrate sheet which is shaped in the form of an animal body part e.g. a thyroid, including a radioactive material substantially uniformly deposited on the substrate, and a tissue simulating material encapsulating and supporting the substrate. A container may be included to provide a mold for the tissue simulating material and to protect the phantom. An additional fat simulating overlay may also be provided to extend the capability of the device.
Inventors
- 👤 Kase M. Gamarnik
- 👤 Gary H. Kramer
- 👤 Leo Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:55
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/58; A61B6/582; A61B6/583
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
43 words
An animal body parts phantom, comprising: a substrate sheet, shaped in the form of an animal body part; a predetermined known amount of a radio-active tracer material substantially uniformly deposited on said substrate; and a tissue simulating material encapsulating and supporting said substrate.
Claim 2
Dependent Claim
43 words
An animal body parts phantom, comprising: a substrate sheet, shaped in the form of an animal body part; a predetermined known amount of a radio-active tracer material substantially uniformly deposited on said substrate; and a tissue simulating material encapsulating and supporting said substrate.
Claim 3
Dependent Claim
36 words
A phantom according to claim 1, wherein the radio-active tracer material is selected from 125 I, 131 I, 129 I, a mixture of 133 Ba and 137 Cs, and radio nuclides of Pu, Co and Th.
Claim 4
Dependent Claim
15 words
A phantom according to claim 2, wherein the tissue stimulating material is a polyurethane material.
Claim 5
Dependent Claim
20 words
A phantom according to claim 3, wherein the animal body parts are selected from the thyroid, the liver and bones.
Claim 6
Dependent Claim
38 words
A thyroid phantom comprising: a substrate sheet, shaped in the form of a thyroid; a predetermined known amount of radio-active tracer material substantially uniformly deposited on said substrate; and a tissue simulating material encapsulating and supporting said substrate.
Claim 7
Dependent Claim
38 words
A thyroid phantom comprising: a substrate sheet, shaped in the form of a thyroid; a predetermined known amount of radio-active tracer material substantially uniformly deposited on said substrate; and a tissue simulating material encapsulating and supporting said substrate.
Claim 8
Dependent Claim
17 words
A thyroid phantom according to claim 5, including a snug fitting outer container enclosing said encapsulated substrate.
Claim 9
Dependent Claim
43 words
A thyroid phantom according to claim 6, wherein the outer container includes a cavity, having convex frontal and rear walls, the substrate being vertically positioned in said cavity by spacer pins to locate said substrate substantially equidistant from said frontal and rear walls.
Claim 10
Dependent Claim
30 words
A thyroid phantom according to claim 7, wherein said tissue simulating material is pour cast into said cavity, which acts as a mold for said material, to encapsulate said substrate.
Claim 11
Dependent Claim
54 words
A thyroid phantom according to claim 8, in combination with a neck phantom, said neck phantom having a base and a central cavity of substantially the same shape as said container, said cavity being accessible through an opening in the base, and including a frontal overlay to simulate additional tissue covering an actual thyroid.
Claim 12
Dependent Claim
57 words
A thyroid phantom according to claim 8, in combination with a neck phantom, said neck phantom having a base and a central cavity of substantially the same shape as said container, said cavity being accessible through an opening in the base, and including a retainer block to ensure a snug fit of the container in the cavity.
Claim 13
Dependent Claim
30 words
A thyroid phantom according to claim 10, wherein the neck phantom covering the container, together with the frontal wall simulates the about 1 cm tissue thickness covering an actual thyroid.
Claim 14
Dependent Claim
25 words
A thyroid phantom according to claim 8, wherein the tissue simulating material has a density and mass attenuation coefficient substantially matching those of human tissue.
Claim 15
Dependent Claim
17 words
A thyroid phantom, according to claim 12, wherein the tissue simulating material is a rubbery polyurethane material.
Claim 16
Dependent Claim
14 words
A thyroid phantom according to claim 12, wherein the substrate is a cellulosic material.
Claim 17
Dependent Claim
18 words
A thyroid phantom according to claim 14, wherein the cellulosic material is a highly liquid absorbent paper material.
Claim 18
Dependent Claim
14 words
A thyroid phantom according to claim 15, wherein the radioactive tracer is radioactive iodine.
Claim 19
Dependent Claim
33 words
A thyroid phantom according to claim 15, wherein the radioactive tracer is selected from 125 I, 131 I, 129 I and a mixture of 133 Ba and 137 Cs, in a water solution.
Claim 20
Dependent Claim
29 words
A thyroid phantom according to claim 17, including a convex overlay contacting the frontal wall of the container to simulate the presence of additional tissue covering an actual thyroid.
Claim 21
Dependent Claim
19 words
A thyroid phantom according to claim 18, wherein the container and overlay are made of an acrylic resin material.
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) | 1996-07-12 | 1997-01-11 | 1997-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-12 | 2001-01-11 | 2001-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-12 | 2005-01-11 | 2005-07-13 | $7700.00 | Window Closed / Lapsed |