发明名称 |
DOUBLE-WALL BALLOON CATHETER FOR TREATMENT OF PROLIFERATIVE TISSUE |
摘要 |
An instrument (10) for use in brachy-therapy comprises a concentric arrangement of inner and outer distensible, spherical chambers (30, 34) disposed near the proximal end of a catheter body (12) where one of the chambers (30, 34) is made to contain a radioactive material with the other chamber (30, 34) containing a radiation absorptive material, the apparatus (10) functioning to provide a more uniform absorbed dose profile in tissue surrounding a cavity created by the removal of a tumo r. An alternative embodiment includes non-spherical inner and outer chambers whose respective walls are spaced equidistant over the entire surfaces thereof.
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申请公布号 |
CA2296430(C) |
申请公布日期 |
2004.06.15 |
申请号 |
CA19982296430 |
申请日期 |
1998.06.22 |
申请人 |
PROXIMA THERAPEUTICS, INC. |
发明人 |
STUBBS, JAMES B.;PATRICK, TIMOTHY J.;DEMPSEY, JAMES F.;WILLIAMS, JEFFERY A.;PORTER, CHRISTOPHER H.;WILLIAMSON, JEFFREY F. |
分类号 |
A61M25/00;A61M36/04;A61N5/10;(IPC1-7):A61N5/00 |
主分类号 |
A61M25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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