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Body cavity inner dose detector integrated in brachytherapy system

A radiation therapy and internal dose technology, applied in dosimeter, electrostatic dosimeter, X-ray/γ-ray/particle irradiation therapy, etc., can solve the problems of increasing the risk of brachytherapy and reducing accurate detection

Inactive Publication Date: 2013-03-13
曹暾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this system and its similar brachytherapy systems have an obvious shortcoming: They all use extrabody dose sensors to detect the dose of radiation source irradiated to the target tumor on the patient's body surface, and compare it with the radiation source intracavity radiation calculated by the treatment plan. dose comparison
However, the influence of a large amount of tissue between the tumor and the patient's body surface on the radiation source seriously reduces the accurate detection of the actual dose of the radiation source to the target tumor and increases the risk of brachytherapy

Method used

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  • Body cavity inner dose detector integrated in brachytherapy system
  • Body cavity inner dose detector integrated in brachytherapy system
  • Body cavity inner dose detector integrated in brachytherapy system

Examples

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example 1

[0034] First, grow a metal thin film (such as Al, Ag, Au, Cu, etc.) image 3 (a) shown. Secondly, use flip-chip technology (Flip-chip) or silver glue (silver glue) B to fix the semiconductor diode dose sensor chip A on the metal film (such as Al, Ag, Au, Cu, etc.) C, as attached image 3 (b) shown. Then, the semiconductor diode dose sensor chip is packaged in a radiation-permeable material, such as a light-transmissible polyethylene tube (Polythene / Polyethylene Tube) E, to form a dose sensor probe F, wherein the tube E passes through a water-like Gel (water like glue) G filling, as attached image 3 (c) shown. Finally, the dose sensor probe F is inserted into the catheter in the applicator to form the catheter H equipped with the dose sensor probe F in the body cavity, as shown in the attached image 3 (d) shown.

example 2

[0036] First, grow metal films (such as Al, Ag, Au, Cu, etc.) C1 and C2 on two 100um thick polyimide (Polyimide) and other flexible material substrates D1 and D2 respectively, as shown in the attached Figure 4 (a) shown. Secondly, use flip-chip technology (Flip-chip) or silver glue (silver glue) B to fix the semiconductor diode dose sensor chip A1 and A2 on the metal film (such as Al, Ag, Au, Cu, etc.) C1 and C2 respectively , as attached Figure 4 (b) shown. Then, stick the substrates D1 and D2 of the two semiconductor diode chips together to form a double-sided diode dose sensor chip, as attached Figure 4 (c) shown. Then, the double-sided diode dose sensor chip is packaged in a radiation-permeable material, such as a light-permeable polyethylene tube (Polythene / Polyethylene Tube) E, to form a double-sided dose sensor probe F, wherein the tube E is filled with water like glue G, as attached Figure 4 (d) shown. Finally, the stylet F is inserted into the catheter in th...

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Abstract

The invention provides a body cavity inner dose sensor capable of being inserted in a catheter (attached image B) of an applicator (attached image A). In a high dose rate brachytherapy process, the dose sensor is implanted in a body cavity of a patient through the applicator so as to achieve real-time continuous detection of body cavity internal irradiation dose values of a radioactive source to a target tumor. A detector has the advantages of being good in instantaneity, small in volume, high in sensitivity and stability, easy to integrate and the like. Simultaneously, a high dose rate brachytherapy system integrating the body cavity inner dose sensor is further provided.

Description

technical field [0001] The invention relates to an intrabody dose detector (In vivo dose detector) in the field of radiotherapy dose detection, which can be applied to a high dose rate brachytherapy system (High Dose Rate Brachytherapy). The present invention can also be applied to other brachytherapy systems (Brachytherapy) such as: middle dose rate brachytherapy (Middle Dose Rate Brachytherapy), low dose rate brachytherapy (Low Dose Rate Brachytherapy), adaptive brachytherapy Treatment system (Conformal Brachytherapy) and pulse source brachytherapy system (Pulse Source Brachytherapy), etc. Background technique [0002] The development of radiation therapy equipment provides efficient and convenient means for the diagnosis, treatment and prevention of tumors. Radiation therapy equipment can be divided into two types according to the radiation method: the radiation therapy system (Telet therapy) for external long-distance radiation and the short-distance radiation therapy s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/14A61N5/10
Inventor 曹暾汤毅欣
Owner 曹暾
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