RU2003112010A - ELEMENT WITH RADIOACTIVE SUBSTANCE AND METHOD OF ITS PRODUCTION - Google Patents

ELEMENT WITH RADIOACTIVE SUBSTANCE AND METHOD OF ITS PRODUCTION

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Publication number
RU2003112010A
RU2003112010A RU2003112010/14A RU2003112010A RU2003112010A RU 2003112010 A RU2003112010 A RU 2003112010A RU 2003112010/14 A RU2003112010/14 A RU 2003112010/14A RU 2003112010 A RU2003112010 A RU 2003112010A RU 2003112010 A RU2003112010 A RU 2003112010A
Authority
RU
Russia
Prior art keywords
carrier
bioabsorbent
radioactive
radioactive substance
elongated
Prior art date
Application number
RU2003112010/14A
Other languages
Russian (ru)
Other versions
RU2277953C2 (en
Inventor
Майкл Э. РЭЙПАЧ
Кевин М. ХЕЛЛ
Чарлз И. ШАНКС
Джей К. РИД
Original Assignee
Меди-Физикс, Инк.
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Publication date
Application filed by Меди-Физикс, Инк. filed Critical Меди-Физикс, Инк.
Publication of RU2003112010A publication Critical patent/RU2003112010A/en
Application granted granted Critical
Publication of RU2277953C2 publication Critical patent/RU2277953C2/en

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Claims (24)

1. Элемент с радиоактивным веществом для использования в брахитерапии, включающий удлиненный биоабсорбирующий носитель, отформованный вокруг радиоактивных источников, расположенных внутри него и разделенных промежутками.1. An element with a radioactive substance for use in brachytherapy, comprising an elongated bioabsorbent carrier molded around radioactive sources located within it and separated by gaps. 2. Элемент с радиоактивным веществом по п.1, где вышеуказанный удлиненный биоабсорбирующий носитель является по существу жестким.2. The element with the radioactive substance according to claim 1, where the aforementioned elongated bioabsorbent carrier is essentially rigid. 3. Элемент с радиоактивным веществом по п.2, где вышеуказанный удлиненный биоабсорбирующий носитель сформирован из материала, выбранного из группы, состоящей из поли(-L-молочной кислоты), поли(гликолевой кислоты), полиэфирамидов гликолевых кислот, полиэфирамидов молочных кислот и их комбинаций.3. The radioactive substance element according to claim 2, where the aforementioned elongated bioabsorbent carrier is formed from a material selected from the group consisting of poly (-L-lactic acid), poly (glycolic acid), glycolic acid polyether amides, lactic acid polyether amides and their combinations. 4. Элемент с радиоактивным веществом по п.3, где вышеуказанный удлиненный биоабсорбирующий носитель включает комбинацию PLLA (поли(L-лактида)) и PGA (поли (гликолида)) в пропорции 10 частей PLLA/90 частей PGA мас./мас.4. The radioactive substance element according to claim 3, where the aforementioned elongated bioabsorbent carrier includes a combination of PLLA (poly (L-lactide)) and PGA (poly (glycolide)) in a proportion of 10 parts PLLA / 90 parts PGA wt./wt. 5. Элемент с радиоактивным веществом по п.4, где вышеуказанный удлиненный биоабсорбирующий носитель образует участки, содержащие радиоактивные источники, и участки, не содержащие радиоактивных источников.5. The element with a radioactive substance according to claim 4, where the aforementioned elongated bioabsorbent carrier forms areas containing radioactive sources, and areas that do not contain radioactive sources. 6. Элемент с радиоактивным веществом по п.5, где вышеуказанные участки удлиненного биоабсорбирующего носителя, содержащего радиоактивные источники, шире тех участков, которые не содержат радиоактивных источников.6. The element with a radioactive substance according to claim 5, where the above sections of an elongated bioabsorbent carrier containing radioactive sources are wider than those sections that do not contain radioactive sources. 7. Элемент с радиоактивным веществом по п.1, где вышеуказанный удлиненный биоабсорбирующий носитель является эхогенным.7. The element with the radioactive substance according to claim 1, where the aforementioned elongated bioabsorbent carrier is echogenic. 8. Элемент с радиоактивным веществом по п.1, где вышеуказанные радиоактивные источники являются радиоактивными зернами.8. The element with a radioactive substance according to claim 1, where the above radioactive sources are radioactive grains. 9. Элемент с радиоактивным веществом по п.1, где вышеуказанный удлиненный биоабсорбирующий носитель включает пористую структуру.9. The element with the radioactive substance according to claim 1, where the aforementioned elongated bioabsorbent carrier includes a porous structure. 10. Элемент с радиоактивным веществом для использования в брахитерапии, включающий удлиненный биоабсорбирующий носитель с радиоактивными источниками, расположенными внутри и разделенными промежутками, где вышеуказанный удлиненный биоабсорбирующий носитель представляет собой по существу сплошную композицию.10. An element with a radioactive substance for use in brachytherapy, comprising an elongated bioabsorbent carrier with radioactive sources located inside and separated by gaps, where the aforementioned elongated bioabsorbent carrier is a substantially continuous composition. 11. Элемент с радиоактивным веществом по п.10, где вышеуказанный удлиненный биоабсорбирующий носитель является по существу жестким.11. The element with the radioactive substance of claim 10, where the aforementioned elongated bioabsorbent carrier is essentially rigid. 12. Элемент с радиоактивным веществом по п.11, где вышеуказанный удлиненный биоабсорбирующий носитель сформирован из материала, выбранного из группы, состоящей из поли(-L-молочной кислоты), поли(гликолевой кислоты), полиэфирамидов гликолевых кислот, полиэфирамидов молочных кислот и их комбинаций.12. The radioactive substance element according to claim 11, wherein said elongated bioabsorbent carrier is formed from a material selected from the group consisting of poly (-L-lactic acid), poly (glycolic acid), glycolic acid polyether amides, lactic acid polyether amides and their combinations. 13. Элемент с радиоактивным веществом по п.12, где вышеуказанный удлиненный биоабсорбирующий носитель включает комбинацию PLLA (поли (L-лактида)) и PGA (поли (гликолида)) в пропорции 10 частей PLLA/90 частей PGA мас./мас.13. The radioactive substance element according to claim 12, wherein said elongated bioabsorbent carrier comprises a combination of PLLA (poly (L-lactide)) and PGA (poly (glycolide)) in a proportion of 10 parts PLLA / 90 parts PGA w / w. 14. Элемент с радиоактивным веществом по п.13, где вышеуказанный удлиненный биоабсорбирующий носитель образует участки, содержащие радиоактивные источники, и участки, не содержащие радиоактивных источников.14. The element with a radioactive substance according to item 13, where the aforementioned elongated bioabsorbent carrier forms areas containing radioactive sources, and areas that do not contain radioactive sources. 15. Элемент с радиоактивным веществом по п.14, где вышеуказанные участки удлиненного биоабсорбирующего носителя, содержащего радиоактивные источники, шире тех участков, которые не содержат радиоактивных источников.15. The element with a radioactive substance according to 14, where the above sections of an elongated bioabsorbent carrier containing radioactive sources are wider than those sections that do not contain radioactive sources. 16. Элемент с радиоактивным веществом по п.10, где вышеуказанный удлиненный биоабсорбирующий носитель является эхогенным.16. The radioactive substance element of claim 10, where the aforementioned elongated bioabsorbent carrier is echogenic. 17. Способ производства элемента с радиоактивным веществом, включающий следующие операции: a) обеспечение пресс-формы, b) введение множества радиоактивных источников в пресс-форму, c) введение жидкого материала биоабсорбирующего носителя в пресс-форму, d) отвердевание жидкого материала биоабсорбирующего носителя и e) извлечение отвердевшего продукта из пресс-формы.17. A method of manufacturing an element with a radioactive substance, comprising the following steps: a) providing a mold, b) introducing a plurality of radioactive sources into the mold, c) introducing the liquid material of the bioabsorbent carrier into the mold, d) solidifying the liquid material of the bioabsorbing carrier and e) recovering the hardened product from the mold. 18. Способ по п.17, где вышеуказанная операция введения дополнительно включает инжектирование вышеуказанного материала в указанную пресс-форму.18. The method according to 17, where the aforementioned introduction operation further includes the injection of the above material into the specified mold. 19. Способ по п.18, где пресс-форма имеет несколько маленьких стержней, выдающихся вперед по направлению к ее центру для того, чтобы зафиксировать радиоактивные источники в заданных положениях в пресс-форме до введения жидкого материала биоабсорбирующего носителя.19. The method according to p. 18, where the mold has several small rods protruding forward towards its center in order to fix the radioactive sources in predetermined positions in the mold before introducing the liquid material of the bioabsorbent carrier. 20. Способ по п.17, дополнительно включающий операцию введения вспенивающей добавки в вышеуказанный материал носителя.20. The method according to 17, further comprising the step of introducing a blowing agent into the aforementioned carrier material. 21. Способ по п.17, дополнительно включающий операцию удаления воздуха, содержащегося в пресс-форме, при выполнении операции введения жидкого материала биоабсорбирующего носителя в пресс-форму.21. The method according to 17, further comprising the operation of removing air contained in the mold, when performing the operation of introducing a liquid material bioabsorbent carrier into the mold. 22. Способ по п.17, где вышеуказанная операция отвердевания дополнительно включает создание газовых пузырьков в вышеуказанном материале носителя для того, чтобы сформировать пористую структуру в отвердевшем материале носителя.22. The method according to 17, where the aforementioned hardening operation further includes creating gas bubbles in the aforementioned carrier material in order to form a porous structure in the hardened carrier material. 23. Способ лечения состояния, обладающего реакцией на радиационную терапию, включающий операцию размещения элемента с радиоактивным веществом по п.1 в непосредственной близости от участка, подвергаемого лечению, в теле пациента в течение времени, которое достаточно для обеспечения терапевтически эффективной дозы облучения.23. A method of treating a condition having a response to radiation therapy, comprising the step of placing an element with a radioactive substance according to claim 1 in the immediate vicinity of the site to be treated in the patient’s body for a time sufficient to provide a therapeutically effective dose of radiation. 24. Способ по п.23, где состояние является раком.24. The method according to item 23, where the condition is cancer.
RU2003112010/14A 2000-11-01 2001-11-01 Cell containing radioactive material and method for producing the cell RU2277953C2 (en)

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US24504600P 2000-11-01 2000-11-01
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AT (1) ATE305809T1 (en)
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