CA2427837A1 - Radioactive member for use in brachytherapy and method of making - Google Patents
Radioactive member for use in brachytherapy and method of making Download PDFInfo
- Publication number
- CA2427837A1 CA2427837A1 CA002427837A CA2427837A CA2427837A1 CA 2427837 A1 CA2427837 A1 CA 2427837A1 CA 002427837 A CA002427837 A CA 002427837A CA 2427837 A CA2427837 A CA 2427837A CA 2427837 A1 CA2427837 A1 CA 2427837A1
- Authority
- CA
- Canada
- Prior art keywords
- radioactive
- bioabsorbable carrier
- elongate
- mold
- poly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1027—Interstitial radiation therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N2005/1019—Sources therefor
- A61N2005/1023—Means for creating a row of seeds, e.g. spacers
Abstract
A radioactive member for use in brachytherapy comprising a molded elongate, bioabsorbable carrier material with spaced radioactive sources disposed therein, and methods for the manufacture thereof. The radioactive members may be used in treatment of, for example, prostate cancer.
Claims (24)
1. ~A radioactive member for use in brachytherapy comprising an elongate bioabsorbable carrier molded about spaced radioactive sources disposed therein.
2. ~A radioactive member as claimed in claim 1 wherein said elongate bioabsorbable carrier is essentially rigid.
3. ~A radioactive member as claimed in claim 2 wherein said elongate bioabsorbable carrier is formed from a material selected from the group consisting of poly(-L-lactic acid), poly(glycolic acid), polyester amides of glycolic acids, polyester amides of lactic acids, and combinations thereof.
4. ~A radioactive member as claimed in claim 3 wherein said elongate bioabsorbable carrier comprises a combination of PLLA (Poly (L-lactide)) and PGA (Poly (glycolide)) having 10 parts PLLA/90 parts PGA w/w.
5. ~A radioactive member as claimed in claim 4 wherein said elongate bioabsorbable carrier forms regions containing radioactive sources and regions devoid of radioactive sources.
6. ~A radioactive member as claimed in claim 5, wherein said regions of said elongate bioabsorbable carrier containing radioactive sources are wider than said regions devoid of radioactive sources.
7. ~A radioactive member as claimed in claim 1, wherein said elongate bioabsorbable carrier is echogenic.
8.~A radioactive member as claimed in claim 1, wherein said radioactive sources are radioactive seeds.
9. ~A radioactive member as claimed in claim 1, wherein said elongate bioabsorbable carrier comprises a porous structure.
10. ~A radioactive member for use in brachytherapy comprising an elongate bioabsorbable carrier with spaced radioactive sources disposed therein, wherein said elongate bioabsorbable carrier is of a substantially solid composition.
11. ~A radioactive member as claimed in claim 10, wherein said elongate bioabsorbable carrier is essentially rigid.
12. ~A radioactive member as claimed in claim 11, wherein said elongate bioabsorbable carrier is formed from a material selected from the group consisting of poly(-L-lactic acid), poly(glycolic acid), polyester amides of glycolic acids, polyester amides of lactic acids, and combinations thereof.
13. ~A radioactive member as claimed in claim 12, wherein said elongate bioabsorbable carrier comprises a combination of PLLA (Poly (L-lactide)) and PGA (Poly (glycolide)) having 10 parts PLLA/90 parts PGA w/w.
14. ~A radioactive member as claimed in claim 13, wherein said elongate bioabsorbable carrier forms regions containing radioactive sources and regions devoid of radioactive sources.
15. ~A radioactive member as claimed in claim 14, wherein said regions of said elongate bioabsorbable carrier containing radioactive sources are wider than said regions devoid of radioactive sources.
16. ~A radioactive member as claimed in claim 10, wherein said elongate bioabsorbable carrier is echogenic.
17. ~A method for making a radioactive member comprising the steps of:
a) providing a mold;
b) introducing a plurality of radioactive sources into the mold;
c) introducing liquid bioabsorbable carrier material into the mold;
d) setting the liquid bioabsorbable carrier material; and e) removing the set product from the mold.
a) providing a mold;
b) introducing a plurality of radioactive sources into the mold;
c) introducing liquid bioabsorbable carrier material into the mold;
d) setting the liquid bioabsorbable carrier material; and e) removing the set product from the mold.
18. ~A method as claimed in claim 17, wherein said introducing step further comprises injecting said material into said mold.
19. A method as claimed in claim 18, wherein the mold has a number of small pins protruding towards its centre position so as to hold radioactive sources at predetermined positions in the mold prior to the introduction of the liquid bioabsorbable carrier material.
20. A method as claimed in claim 17, further comprising the step of introducing a blowing agent into said carrier material.
21. A method as claimed in claim 17, further comprising the step of venting entrapped air from said mold during said step of introducing liquid bioabsorbable carrier material into the mold.
22. A method as claimed in claim 17, wherein said setting step further comprising~
forming gas bubbles in said carrier material so as to form a porous structure to the set carrier material.
forming gas bubbles in said carrier material so as to form a porous structure to the set carrier material.
23. A method of treatment of a condition which is responsive to radiation therapy which comprises the step of placing a radioactive member as claimed in claim 1 adjacent a site to be treated within a patient for a sufficient period of time to deliver a therapeutically effective dose.
24. A method as claimed in claim 23 wherein the condition is cancer.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24504600P | 2000-11-01 | 2000-11-01 | |
US60/245,046 | 2000-11-01 | ||
PCT/US2001/049879 WO2002036199A2 (en) | 2000-11-01 | 2001-11-01 | Radioactive member for use in brachytherapy and method of making |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2427837A1 true CA2427837A1 (en) | 2002-05-10 |
CA2427837C CA2427837C (en) | 2010-07-13 |
Family
ID=22925077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2427837A Expired - Fee Related CA2427837C (en) | 2000-11-01 | 2001-11-01 | Radioactive member for use in brachytherapy and method of making |
Country Status (18)
Country | Link |
---|---|
US (3) | US6905455B2 (en) |
EP (1) | EP1330292B1 (en) |
AT (1) | ATE305809T1 (en) |
AU (5) | AU3122702A (en) |
BR (1) | BR0115087B1 (en) |
CA (1) | CA2427837C (en) |
CZ (1) | CZ20031217A3 (en) |
DE (1) | DE60113871T2 (en) |
DK (1) | DK1330292T3 (en) |
ES (1) | ES2253446T3 (en) |
IL (1) | IL155382A0 (en) |
MX (1) | MXPA03003852A (en) |
NO (1) | NO20031803L (en) |
NZ (2) | NZ525361A (en) |
PL (1) | PL203978B1 (en) |
RU (1) | RU2277953C2 (en) |
WO (1) | WO2002036199A2 (en) |
ZA (1) | ZA200303372B (en) |
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-
2001
- 2001-11-01 IL IL15538201A patent/IL155382A0/en unknown
- 2001-11-01 ES ES01991503T patent/ES2253446T3/en not_active Expired - Lifetime
- 2001-11-01 DE DE60113871T patent/DE60113871T2/en not_active Expired - Lifetime
- 2001-11-01 BR BRPI0115087-1A patent/BR0115087B1/en not_active IP Right Cessation
- 2001-11-01 DK DK01991503T patent/DK1330292T3/en active
- 2001-11-01 US US10/415,715 patent/US6905455B2/en not_active Expired - Lifetime
- 2001-11-01 CZ CZ20031217A patent/CZ20031217A3/en unknown
- 2001-11-01 PL PL366252A patent/PL203978B1/en not_active IP Right Cessation
- 2001-11-01 MX MXPA03003852A patent/MXPA03003852A/en active IP Right Grant
- 2001-11-01 WO PCT/US2001/049879 patent/WO2002036199A2/en active IP Right Grant
- 2001-11-01 AU AU3122702A patent/AU3122702A/en active Pending
- 2001-11-01 AU AU2002231227A patent/AU2002231227B2/en not_active Ceased
- 2001-11-01 EP EP01991503A patent/EP1330292B1/en not_active Expired - Lifetime
- 2001-11-01 NZ NZ525361A patent/NZ525361A/en not_active IP Right Cessation
- 2001-11-01 RU RU2003112010/14A patent/RU2277953C2/en not_active IP Right Cessation
- 2001-11-01 CA CA2427837A patent/CA2427837C/en not_active Expired - Fee Related
- 2001-11-01 AT AT01991503T patent/ATE305809T1/en not_active IP Right Cessation
- 2001-11-01 NZ NZ543165A patent/NZ543165A/en not_active IP Right Cessation
-
2003
- 2003-04-23 NO NO20031803A patent/NO20031803L/en not_active Application Discontinuation
- 2003-04-30 ZA ZA200303372A patent/ZA200303372B/en unknown
-
2005
- 2005-04-05 US US11/099,238 patent/US7547274B2/en not_active Expired - Fee Related
-
2007
- 2007-05-23 AU AU2007202344A patent/AU2007202344A1/en not_active Abandoned
- 2007-09-06 AU AU2007216652A patent/AU2007216652B2/en not_active Ceased
-
2009
- 2009-06-15 US US12/484,511 patent/US8033981B2/en not_active Expired - Fee Related
- 2009-10-22 AU AU2009227914A patent/AU2009227914B2/en not_active Ceased
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Legal Events
Date | Code | Title | Description |
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EEER | Examination request | ||
MKLA | Lapsed |