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Tissue-equivalent filler fixation device for breast cancer patients undergoing radiotherapy

A tissue equivalent and fixation device technology, which is applied in the direction of X-ray/γ-ray/particle irradiation therapy, can solve the problems of unfavorable protection of normal tissues, deviation of filling materials, and increased irradiation dose, etc., and achieves simple operation process Easy to implement, simple to manufacture, and the effect of reducing the deviation of the irradiation field position

Active Publication Date: 2016-01-13
ZHEJIANG CANCER HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fillers currently in use have the following deficiencies and defects: (1) The fit is extremely poor
There have been incidents of filler leakage in actual use; (7) It is not conducive to the protection of normal tissues
The fit deviation of the filler may increase the radiation dose of the lung tissue and the heart; (8) There is no fixation and restraint function

Method used

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  • Tissue-equivalent filler fixation device for breast cancer patients undergoing radiotherapy
  • Tissue-equivalent filler fixation device for breast cancer patients undergoing radiotherapy
  • Tissue-equivalent filler fixation device for breast cancer patients undergoing radiotherapy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] see Figure 1-3 , a radiotherapy tissue equivalent filler fixation device for breast cancer patients, consisting of a filler 1, a left pressure belt 2, a right pressure belt 10, a limiting hole 3, a clip 4, a single element 5, an air hole 6, a trapezoidal canvas 7, The magic sticky sheet 8 and the fixed pin 9 are composed of two pieces of trapezoidal canvas 7, each piece of trapezoidal canvas 7 is provided with vent holes 6, one end of the trapezoidal canvas 7 is connected with the magic sticky sheet 8, and the other end is a row of joints that are interlocked with each other by loose leaves. Unit 5 (20 pieces), each unit 5 has a limit hole 3, the left pressure belt 2 and the right pressure belt 10 have a width of 2 cm, and the two ends of the clamp 4 are connected with each other. The vertical fixing bolt 9, the filler 1 is fixed between the two trapezoidal canvases 7 by the clip 4. The device takes the filler 1 as the center and is symmetrical on both sides.

Embodiment 2

[0014] Embodiment 2 uses the present invention

[0015] refer to figure 1 , 2 , 3. Operation steps:

[0016] (1) Determine the filling and covering area (namely: the field area). When assembling, according to the size of the irradiation field, insert the fixing pins 9 of the four clips 4 into the limit holes 3 respectively, and the left and right adjacent ones on the same side The unit element between the two clips and the two pressure belts 2 are used as four sides to form a quadrilateral. Wherein two sides of quadrilateral can realize the adjustment of side length by changing the position of latch 9 on the clip in different limit holes 3 . Generally, the sides of the quadrilateral are slightly longer than the sides of the irradiation field;

[0017] (2) Clamp the filler: After determining the size of the field of view, use four clips 4 and two pressure belts 2 to clamp the two sides of the filler 1 respectively;

[0018] (3) Wrapping around the body and fixing: the fill...

Embodiment 3

[0019] Embodiment 3 different device operating result comparisons

[0020] By selecting special silica gel and using conventional methods to compare with the device of the present invention, see Table 1 for the results.

[0021] .

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PUM

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Abstract

The invention provides a breast cancer patient radiotherapy tissue equivalent filler fixing device. The breast cancer patient radiotherapy tissue equivalent filler fixing device is composed of fillers, a pressing band, limiting holes, clips, unit parts, ventilating holes, trapezoid-shaped canvas, Velcro and a fixing pin, wherein the ventilating holes are formed in the trapezoid-shaped canvas, one end of the trapezoid-shaped canvas is connected with the Velcro, and the other end of the trapezoid-shaped canvas is provided with a row of unit parts with the limiting holes; the two ends of the pressing band are connected with the clips; the fillers 1 are located between two trapezoid-shaped canvas sheets and are fixed through the clips. The breast cancer patient radiotherapy tissue equivalent filler fixing device can better eliminate gaps between the body of a patient and the fillers and can further improve target region dosage except that close fitting is achieved. The breast cancer patient radiotherapy tissue equivalent filler fixing device can ensure more even whole-field radioactive ray dosage distribution and reduce irradiation field position deviations caused by involuntary movement of the patient after an irradiation body position is kept by the patient for a long time so as to smoothly finish irradiation. The breast cancer patient radiotherapy tissue equivalent filler fixing device is reasonable in design and easy to produce, achieves complex fitting of a physiological curved surface structure, is easy to operate when being used, and is suitable for tissue equivalent filler fixing in the breast cancer patient radiotherapy process.

Description

technical field [0001] The invention belongs to radiation therapy auxiliary equipment, and relates to a tissue-equivalent filler fixing device, in particular to a tissue-equivalent filler fixing device in radiotherapy for patients undergoing improved radical mastectomy for breast cancer. It is used in daily radiation therapy, especially radiation therapy for breast cancer patients. Background technique [0002] Tissue equivalent compensator (Bolus) (also known as filler) is a special radiotherapy auxiliary item, which is quadrangular in shape and has a certain thickness. It is generally composed of substances with a density equal to that of human tissue. In the process of clinical radiotherapy, in order to ensure the accuracy and uniformity of the radiation dose, for some patients with breast and corresponding pectoralis major muscle and other soft tissue loss after the modified radical mastectomy, it is necessary to fill the tissue loss with tissue-equivalent fillers. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/10
Inventor 张鹏封巍单国平毛伟敏
Owner ZHEJIANG CANCER HOSPITAL
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