Positioning frame for radiotherapy head, neck and shoulder positioning and application method thereof

A technology of radiation therapy and positioning frame, which is applied in the direction of X-ray/γ-ray/particle irradiation therapy, etc. It can solve the problems of difficult control of mechanical operation errors, and achieve the effects of accuracy assurance, increased contact area, and balanced force

Inactive Publication Date: 2019-03-08
山东省立第三医院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the fixed gap between the frame and the base, the existing bolt fixing method will make it difficult to control the error caused by the mechanical operation

Method used

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  • Positioning frame for radiotherapy head, neck and shoulder positioning and application method thereof
  • Positioning frame for radiotherapy head, neck and shoulder positioning and application method thereof
  • Positioning frame for radiotherapy head, neck and shoulder positioning and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 , figure 2 and image 3 As shown in , the positioning frame for radiotherapy head, neck and shoulder positioning in this embodiment includes a bottom plate 1, a frame 2 and a positioning film 3, wherein the frame 2 and the bottom plate 1 are fixedly connected by a locking device 4, and the positioning film 3 is fixedly pressed fit on frame 2. There are a plurality of positioning holes on the base plate 1, the number of positioning holes is generally 8 or 9, and the positioning holes are composed of a counterbore 12 and a main body hole 11, and the diameter of the counterbore 12 is greater than that of the main body 11. The frame 2 is provided with a suitable number of rectangular grooves according to the number of positioning holes, and there are fixed holes 21 corresponding to the positioning holes on the bottom plate 1 in the rectangular grooves. The diameter of the fixed holes 21 is between the main hole 11 and the sink Between the apertures of t...

Embodiment 2

[0043] Such as Figure 9 and Figure 10 As shown, the difference between the present embodiment and the first embodiment is that the locking device 4 of the present embodiment does not include the locking sleeve 42, and the diameter of the pin section at the lower end of the locking pin 41 is slightly smaller than the diameter of the counterbore 12, which is similar to that of the counterbore 12. The diameter of the pin section directly connected to the lower end of the locking pin 41 is slightly smaller than the aperture of the main body hole 11, and the upper end of the locking pin 41 passes through the counterbore 12 of the base plate 1 and the fixing hole 21 of the main body hole 11 and the frame 2 successively.

[0044] The use method of this embodiment includes the following steps: (1) placing the base plate 1 on the treatment bed for radiotherapy, inserting the lower end of the locking sleeve 42 into the main body hole 11 until the cover edge 423 of the locking sleeve 4...

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PUM

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Abstract

The invention discloses a positioning frame for radiotherapy head, neck and shoulder positioning, which comprises a bottom plate, a frame, a locking device and a positioning film. A rectangular grooveon the frame has a fixing hole corresponding to the positioning hole of the bottom plate, and a U-shaped sliding block and the rectangular groove form a moving pair; a locking pin of the locking device comprises a pin body and a concave frame. The diameters of the pin segments on the pin body are increased from top to bottom, and the upper pin segment is connected to the concave frame through a pulling shaft, the concave frame has a pulling rod, the diameter of the lower pin segment is between the diameter of a body hole and the diameter of a counterbore, and the length of the lower pin segment is smaller than the length of the counterbore; the fixing hole allows the concave frame to pass, pushes the U-shaped sliding block to the two sliding for covering a part of the fixing hole, and a uncovered intermediate portion of the fixing hole allows the pin segment of the upper portion of the pin body to pass and does not allow the concave frame to pass. The invention also provides an application method of the positioning frame. The positioning frame adopts a lifting, pressing, locking and fixing manner, the operation is simple and convenient, and the repeated positioning is accurate.

Description

Technical field: [0001] The invention belongs to the technical field of human body positioning devices for radiotherapy, and relates to a positioning frame for radiotherapy head, neck and shoulder positioning and a use method thereof. Background technique: [0002] The positioning film used in radiation therapy is a low-temperature thermoplastic film, which is a new type of medical material processed by a series of physical and chemical methods from a specially synthesized polymer polyester. After softening, it has good shaping effect and unique shape memory function (when the shaping is not satisfactory, it can be reheated, reshaped or partially heated and reshaped), etc., and it is easy to operate and fix. Currently the most ideal external fixation material for radiotherapy positioning. [0003] At present, when performing radiotherapy on the head, neck and shoulders of patients, positioning membranes combined with mechanical fixation are mostly used to achieve positionin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/10A61N2005/1097
Inventor 张慎贵刘燕
Owner 山东省立第三医院
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