US3861380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive source projector
Assignee: Oris Industrie SA
•
Filing: 1972-10-24
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Granted: 1975-01-21
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Expires: 1992-10-24
Abstract
Abstract A radioactive source projector for the treatment of cancerous lesions, said projector comprising, on the one hand, a projector unit containing a shield block and, on the other hand, ancillary means for displacing radioactive sources, said means being constituted by source-holders formed by a flexible metallic spring and each of which is intended to be applied at one end in the vicinity of the lesions, and to be joined to an actuating cable, each source holder being contained in a flexible tube secured to a flexible ejection sheath.
Inventors
- 👤 Daniel Chassagne
- 👤 Gilles Delouche
- 👤 Jean Fradin
- 👤 Jean-Antoine Rocoplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:48
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/10; A61N5/1001; A61N5/1007; G; G21; G21F; G21F5/00; G21F5/02; A61N2005/1008
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
242 words
A radioactive-source projector which comprises: 1. a moveable casing including openings; 2. source-holder means in said casing and extendable through said openings, said source-holder meAns containing radioactive sources, and said source-holder means including a flexible tubular element that is closed at one end and adapted to be applied to the vicinity of a cancerous tissue to be treated in a living body, and that is opened at the other end for receiving said radioactive sources; 3. shield block means in said casing containing said sourceholder means to afford protection against the radioactive sources positioned within said moveable casing; 4. flexible outer tube means receiving said one end of said source-holder means, said outer tube means having a small outer diameter and being adapted to be placed adjacent to the surface of a living body for treatment of cancerous tissue; 5. flexible ejection sheath means having one end connected to said shield block means and another end connected removably to said flexible outer tube for guiding said source-holder means from said shield block means to said flexible outer tube means; 6. actuating cable means removably coupled to said sourceholder means for displacing said source-holder means through said flexible ejection sheath means; and 7. transfer means for transferring said actuating cable means and the associated source-holder means via said flexible ejection sheath means from said shield block means to said outer tube means and from said outer tube means to said shield block means.
Claim 2
Dependent Claim
242 words
A radioactive-source projector which comprises: 1. a moveable casing including openings; 2. source-holder means in said casing and extendable through said openings, said source-holder meAns containing radioactive sources, and said source-holder means including a flexible tubular element that is closed at one end and adapted to be applied to the vicinity of a cancerous tissue to be treated in a living body, and that is opened at the other end for receiving said radioactive sources; 3. shield block means in said casing containing said sourceholder means to afford protection against the radioactive sources positioned within said moveable casing; 4. flexible outer tube means receiving said one end of said source-holder means, said outer tube means having a small outer diameter and being adapted to be placed adjacent to the surface of a living body for treatment of cancerous tissue; 5. flexible ejection sheath means having one end connected to said shield block means and another end connected removably to said flexible outer tube for guiding said source-holder means from said shield block means to said flexible outer tube means; 6. actuating cable means removably coupled to said sourceholder means for displacing said source-holder means through said flexible ejection sheath means; and 7. transfer means for transferring said actuating cable means and the associated source-holder means via said flexible ejection sheath means from said shield block means to said outer tube means and from said outer tube means to said shield block means.
Claim 3
Dependent Claim
63 words
source-holder means in said casing and extendable through said openings, said source-holder meAns containing radioactive sources, and said source-holder means including a flexible tubular element that is closed at one end and adapted to be applied to the vicinity of a cancerous tissue to be treated in a living body, and that is opened at the other end for receiving said radioactive sources;
Claim 4
Dependent Claim
63 words
source-holder means in said casing and extendable through said openings, said source-holder meAns containing radioactive sources, and said source-holder means including a flexible tubular element that is closed at one end and adapted to be applied to the vicinity of a cancerous tissue to be treated in a living body, and that is opened at the other end for receiving said radioactive sources;
Claim 5
Dependent Claim
39 words
The projector according to claim 1, further comprising another source-holder means in said casing containing dummy non-radioactive sources adapted to be connected to said actuating cable and to be used in place of said source-holder means containing radioactive sources.
Claim 6
Dependent Claim
22 words
shield block means in said casing containing said source-holder means to afford protection against the radioactive sources positioned within said moveable casing;
Claim 7
Dependent Claim
22 words
shield block means in said casing containing said source-holder means to afford protection against the radioactive sources positioned within said moveable casing;
Claim 8
Dependent Claim
71 words
The projector according to claim 1, wherein a plurality of said source-holder means containing radioactive sources are provided with an equal plurality of associated flexible outer tube means, actuating cable means, flexible ejection sheath means and transfer means, each of said associated means being associated, respectively, with each of said source-holder means and with said shield block means whereby a plurality of said cancerous tissues can be treated with said projector.
Claim 9
Dependent Claim
32 words
The projector according to claim 1, wherein said transfer means is an electromechanical transfer device which is electrically controlled to effect displacement of said actuating cable means and its associated source-holder means.
Claim 10
Dependent Claim
40 words
flexible outer tube means receiving said one end of said source-holder means, said outer tube means having a small outer diameter and being adapted to be placed adjacent to the surface of a living body for treatment of cancerous tissue;
Claim 11
Dependent Claim
40 words
flexible outer tube means receiving said one end of said source-holder means, said outer tube means having a small outer diameter and being adapted to be placed adjacent to the surface of a living body for treatment of cancerous tissue;
Claim 12
Dependent Claim
39 words
flexible ejection sheath means having one end connected to said shield block means and another end connected removably to said flexible outer tube for guiding said source-holder means from said shield block means to said flexible outer tube means;
Claim 13
Dependent Claim
39 words
flexible ejection sheath means having one end connected to said shield block means and another end connected removably to said flexible outer tube for guiding said source-holder means from said shield block means to said flexible outer tube means;
Claim 14
Dependent Claim
22 words
The projector according to claim 1, wherein said source-holder means is connected to said actuating cable means by a rapid coupling means.
Claim 15
Dependent Claim
24 words
The projector according to claim 1, wherein said flexible outer tube means is connected to said flexible ejection sheath means by a screw coupling.
Claim 16
Dependent Claim
21 words
actuating cable means removably coupled to said source-holder means for displacing said source-holder means through said flexible ejection sheath means; and
Claim 17
Dependent Claim
21 words
actuating cable means removably coupled to said source-holder means for displacing said source-holder means through said flexible ejection sheath means; and
Claim 18
Dependent Claim
40 words
transfer means for transferring said actuating cable means and the associated source-holder means via said flexible ejection sheath means from said shield block means to said outer tube means and from said outer tube means to said shield block means.
Claim 19
Dependent Claim
40 words
transfer means for transferring said actuating cable means and the associated source-holder means via said flexible ejection sheath means from said shield block means to said outer tube means and from said outer tube means to said shield block means.
Claim 20
Dependent Claim
26 words
The projector according to claim 1, wherein said source-holder means is a thin elongated metallic element having an external diameter on the order of 2 mm.
Claim 21
Dependent Claim
18 words
The projector according to claim 1, wherein the radioactive sources contained in said source-holder means are cesium-137 sources.
Claim 22
Dependent Claim
41 words
The projector according to claim 1, wherein a train of sources is housed in said source-holder means said train being formed by a plurality of unit sources having a diameter of 1.5 mm to provide a total activity of 650 mc.
Claim 23
Dependent Claim
31 words
The projector according to claim 1, wherein said outer flexible tube means has an external diameter on the order of 5 mm and a length on the order of 30 cm.
Claim 24
Dependent Claim
17 words
The projector according to claim 1, wherein said shield block means is formed of tungsten and lead.
Claim 25
Dependent Claim
16 words
The projector according to claim 1, wherein said shield block means is formed of depleted uranium.
Claim 26
Dependent Claim
50 words
The projector according to claim 1, wherein said source-holder means includes an abutment member which contacts an open end of said flexible outer tube means to prevent the source-holder means from passing beyond a correct irradiation position at the front of said open end of said flexible outer tube means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |