US3881110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Penetrating radiation examining apparatus in combination with body locating structure
Assignee: QED Intellectual Property Ltd
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Filing: 1973-05-10
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Granted: 1975-04-29
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Expires: 1993-05-10
Abstract
Abstract Apparatus for investigating a part of a body intermediate the extremities thereof by means of X- or gamma -radiation is disclosed. The body part is surrounded by a liquid medium; the liquid medium being retained in an enclosure having a tubular inner wall formed of flexible material, and the body part is located within the inner wall. The liquid medium can be pressurised to cause the flexible inner wall to fit intimately the periphery of the body part.
Inventors
- 👤 Godfrey Newbold Hounsfield
- 👤 David John Gibbons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:58
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/02; A61B6/03; A61B6/032; A61B6/40; A61B6/4035; G; G01; G01T; G01T1/00; G01T1/16; G01T1/161; G01T1/164; G01T1/1641; G01T1/20; G01T1/2018; G01T1/20185; Y; Y10; Y10S; Y10S378/00; Y10S378/901
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
170 words
Apparatus for examining part of a body by means of penetrating radiation, such as X- or gamma - radiation, including a source of said radiation and detector means responsive to said radiation located on opposite sides of the body part, the detector means being arranged to receive radiation emergent from the body, means for orbiting the source and the detector means around the body part, and a locating structure, transmissive of said radiation, for locating the body part relative to the source and detector means, said locating structure comprising a reservoir for a liquid medium transmissive of said radiation, the reservoir having a flexible wall, impervious to said liquid and arranged to surround said body part making intimate contact therewith and an outer wall arranged to orbit with said source and detector means around the body part and the flexible wall, the loCating structure further including a rotary seal, impervious to said liquid, linking said outer and flexible walls to enable the outer wall to orbit around the flexible wall.
Claim 2
Dependent Claim
170 words
Apparatus for examining part of a body by means of penetrating radiation, such as X- or gamma - radiation, including a source of said radiation and detector means responsive to said radiation located on opposite sides of the body part, the detector means being arranged to receive radiation emergent from the body, means for orbiting the source and the detector means around the body part, and a locating structure, transmissive of said radiation, for locating the body part relative to the source and detector means, said locating structure comprising a reservoir for a liquid medium transmissive of said radiation, the reservoir having a flexible wall, impervious to said liquid and arranged to surround said body part making intimate contact therewith and an outer wall arranged to orbit with said source and detector means around the body part and the flexible wall, the loCating structure further including a rotary seal, impervious to said liquid, linking said outer and flexible walls to enable the outer wall to orbit around the flexible wall.
Claim 3
Dependent Claim
31 words
Apparatus according to claim 1 wherein said flexible wall comprises a substantially tubular flexible member having open ends whereby a body part intermediate the extremities of said body can be examined.
Claim 4
Dependent Claim
77 words
Apparatus according to claim 2 including means for causing said fluid to flow out of said reservoir, thereby to cause the said flexible wall to move toward said outer wall so as to permit said body part to be inserted into said locating structure, and means for causing said fluid to flow into said reservoir, thereby to cause said flexible wall to move away from said outer wall and to assume intimate contact with said body part.
Claim 5
Dependent Claim
13 words
Apparatus according to claim 2 wherein said flexible wall is formed of rubber.
Claim 6
Dependent Claim
15 words
Apparatus according to claim 2 wherein said outer wall is formed of a plastics material.
Claim 7
Dependent Claim
11 words
Apparatus according to claim 2 wherein said liquid medium is water.
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |