Expandable brachytherapy device with constant radiation source spacing

a brachytherapy device and constant radiation source technology, applied in the field of brachytherapy, can solve the problems of affecting the effectiveness of treatment regimens, difficult to apply a high dose to areas in need of treatment, damage to healthy tissue in the vicinity, etc., and achieve the effect of constant separation distan

Inactive Publication Date: 2008-05-08
PORTOLA MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it may be difficult to apply a high dose to areas in need of treatment using brachytherapy, without also causing damage to healthy tissue in the vicinity.
The use of different spacings, moreover, may complicate the process of creating and implementing an effective treatment regimen.

Method used

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  • Expandable brachytherapy device with constant radiation source spacing
  • Expandable brachytherapy device with constant radiation source spacing
  • Expandable brachytherapy device with constant radiation source spacing

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Embodiment Construction

[0030]Illustrative embodiments are now discussed. Other embodiments may be used in addition or instead. Details that may be apparent or unnecessary may be omitted to save space or for a more effective presentation.

[0031]Brachytherapy devices may be used to treat cancerous tissue. Examples of such devices and ways in which they may be used are set forth in U.S. Provisional Patent Application 60 / 864,288, entitled “BRACHYTHERAPY DEVICE HAVING SEED TUBES WITH INDIVIDUALLY-SETTABLE TISSUE SPACINGS,” filed Nov. 3, 2006, attorney docket number 63344-045, the entire content of which is incorporated herein by reference. Except for differences described in this provisional application, the brachytherapy devices and associated apparatus that are described in the aforementioned provisional patent application, and the ways in which they may be used, may be used in whole or in part in connection with the devices that are described in this application.

[0032]FIG. 1 illustrates a brachytherapy devic...

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Abstract

A brachytherapy device may include an expandable outer cage, an expandable inner cage positioned within the outer cage and configured to receive radioactive material at its perimeter, and a movable actuator configured to cause the outer and inner cages to expand simultaneously in response to movement of the actuator between certain positions while maintaining a substantially constant separation distance between the outer and inner cages.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S)[0001]This application is based upon and claims the benefit of U.S. Provisional Patent Application Ser. No. 60 / 882,391, entitled “EXPANDABLE BRACHYTHERAPY DEVICE WITH CONSTANT RADIATION SOURCE SPACING,” filed Dec. 28, 2006, attorney docket no. 63344-048, the entire content of which is incorporated herein by reference.[0002]This application is related to U.S. Provisional Patent Application Ser. No. 60 / 864,288, entitled “BRACHYTHERAPY DEVICE HAVING SEED TUBES WITH INDIVIDUALLY-SETTABLE TISSUE SPACINGS,” filed Nov. 3, 2006, attorney docket no. 63344-045. This application is also related to U.S. patent application Ser. Nos. 11 / 305,437, entitled “BRACHYTHERAPY APPARATUS,” filed Dec. 16, 2005, attorney docket no. 63344-021, and 11 / 379,739, entitled “BRACHYTHERAPY APPARATUS FOR ASYMMETRICAL CAVITIES,” filed Apr. 21, 2006, attorney docket no. 63344-023. The entire content of all three of these applications is incorporated herein by reference.BACKGROU...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61M36/12
CPCA61N2005/1018A61N5/1015
Inventor CUTRER, L. MICHAELTERWILLIGER, RICHARD A.WONG, JOEWINCH, FREDRICK
Owner PORTOLA MEDICAL
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