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Applicator for intraoperative radiation therapy

A radiation therapy and applicator technology, which is applied in radiation therapy, therapy, X-ray/γ-ray/particle irradiation therapy, etc., can solve the problem that the applicator is no longer available, and achieve the effect of reducing side effects

Pending Publication Date: 2020-04-07
CARL ZEISS MEDITEC AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After a limited number of resterilization cycles, the applicator is eventually no longer usable and must be discarded

Method used

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  • Applicator for intraoperative radiation therapy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0072] The radiotherapy system 100 includes an X-ray irradiation device 20 with a receiving stub 27 . The tube 30 is arranged in the receiving stub 27 . A closure (not shown) is arranged at the distal end of the tube 30 . The inner side of the closure is coated with a radiation medium 31 which is designed as a gold target. The X-ray irradiation device 20 includes an electron beam source (not shown) that emits electron beams along the central axis 7 . The electron beam strikes the radiation medium 31 , ie the gold target, with a kinetic energy of at most 100 keV (50 keV in one embodiment), such that X-ray radiation is efficiently generated at the site of the radiation medium 31 . Thus, the distal end of the tube 30 forms a source of low energy X-rays. Tube 30 can be produced from stainless steel.

[0073] The electron beam impinging on the distal end of the tube 30 generates X-ray radiation isotropically (ie, with the same intensity in all spatial directions). The radiatio...

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PUM

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Abstract

An applicator 1 for intraoperative radiotherapy with low-energy X-ray radiation includes an applicator body 5, an outer surface 4 with a circumferential outer face and with a distal end 3, a receivingdevice 8 which is arranged at a proximal end 2 and with which the applicator 1 can be secured to an X-ray irradiation device 20, and an inner recess 9 which has an opening at the proximal end 2 and into which an X-ray radiation source 30, 31 is insertable. The applicator 1 has a solid porous structure on its outer surface 4 which provides the air-permeable outer surface 4 with a rigid shape. Thesolid porous structure forms a continuous air-permeable channel structure which is connected in an air-conducting manner to the proximal end 2 of the applicator 1.

Description

technical field [0001] The present invention relates to an applicator for intraoperative radiotherapy using low energy X-ray radiation. Background technique [0002] In intraoperative radiation therapy, an applicator arranged on the irradiation device is used. The irradiation device comprises an X-ray source with an attachment point for an applicator. At the attachment point an elongated tube is arranged, the distal end of which forms the X-ray source. The electron beam strikes a heavy metal target, preferably a gold target, arranged at the distal end of the tube such that X-ray radiation is generated when the electron beam strikes the heavy metal. [0003] At the attachment point of the irradiation device, a bush-shaped applicator is arranged, inside which a tube with an X-ray source is arranged. The applicator is made of a radiolucent material and its exterior geometry is adapted to the shape of the body opening or a surgically created body opening. The applicator can ...

Claims

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Application Information

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IPC IPC(8): A61N5/10
CPCA61N5/1007A61N5/1014A61N2005/1003A61N2005/1091A61N5/1015A61N5/1001A61N5/1078A61N2005/0643A61N2005/1089
Inventor H.鲍姆斯塔克
Owner CARL ZEISS MEDITEC AG
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