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Cylindrical Limb Fixed Radiation Therapy Body Positioning Hollow Fixture

A radiotherapy and fixation technology, applied in the field of radiotherapy positioning, can solve the problems of fixation failure, time-consuming, and prone to locking and falling off, and achieve the effects of strong practicability and versatility, simplified and convenient operation, and obvious fixation effect

Active Publication Date: 2017-05-03
ZHEJIANG CANCER HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Insufficient positioning of current radiotherapy: (1) There is a fixed gap between the low-temperature thermoplastic film and the bottom plate; (2) The stretchability of the low-temperature thermoplastic film is difficult to control; (3) The locking is prone to fall off during the fixation process, and the fixation fails; (4) Skin pinch injury accident caused by the fixing process; (5) The fixing accessories are designed in separate parts, which are easy to lose; (6) The mechanical structure of the fixing lock is directly stressed; (6) The limb limit fixing is missing; and cumbersome

Method used

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  • Cylindrical Limb Fixed Radiation Therapy Body Positioning Hollow Fixture
  • Cylindrical Limb Fixed Radiation Therapy Body Positioning Hollow Fixture
  • Cylindrical Limb Fixed Radiation Therapy Body Positioning Hollow Fixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 Cylindrical Limb Fixation Radiotherapy Body Positioning Hollow Fixing Frame

[0021] see figure 1 and Figure 5 , a cylindrical limb-fixed radiotherapy body positioning hollow fixture of the present invention is composed of two parts: a "cylindrical limb-fixed fixture" and a "tenon-tenon limb-fixed body membrane".

[0022] The fixed frame of cylindrical limbs consists of fixed groove wall 19, fixed base plate 25, base plate slope 34, treatment groove 35, base plate positioning hole 37, base plate hollow part 38, base plate composite positioning hole 39, expansion pin hole structure 105 and 10 cylindrical The locking structures 109 are jointly formed. The main structure of the fixing frame is a rectangular fixed bottom plate 25, and the hollow part of the bottom plate 38 is hollowed out in the center to reduce the attenuation of rays; the long edges on both sides are respectively connected with five cylindrical locking structures 109, which are connected to f...

Embodiment 2

[0027] Embodiment 2 The usage method of the present invention

[0028] The first step: the first lock. The "mortise and tenon limb fixed fixing frame" is placed on the treatment bed (or positioning bed), and the relative position is moved, so that the bottom plate positioning hole 37 and the bottom plate composite positioning hole on the fixing frame match the corresponding design on the bed, and the "bed positioning" is completed. . The patient lies flat in the "U"-shaped treatment tank 35, and two operating technicians work together to immerse the mortise and tenon integrated body membrane in a constant temperature water tank at 60-70 degrees Celsius. The handle 5 covers the position that needs to be fixed and positioned, and stretches the softened low-temperature thermoplastic sheet 1 through the relative fixing bead 2, and puts the fixing mortise 3 in place on the fixing tenon 20 on the fixing frame, and the patient lies flat on the "U In the "shaped treatment tank 35, t...

Embodiment 3

[0031] Example 3 Radiotherapy The comparison between body membrane and limb immobilization and other immobilization methods is shown in Table 1, and the results are shown in Table 1.

[0032]

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PUM

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Abstract

The invention provides a cylindrical limb fixing type radiation treatment body part positioning hollow fixing frame which is composed of two parts of a cylindrical limb integrated fixing frame and a tenon-and-mortise limb fixing type body membrane. Positioning and fixing of the external contour of the human body trunk part can be realized, and the cylindrical limb fixing type radiation treatment body part positioning hollow fixing frame is particularly suitable for the inferior belly part of a patient so that an objective of zero displacement or being close to zero displacement can be achieved. A fixing bottom plate and a treatment couch are enabled to be connected together by bottom plate positioning holes and bottom plate composite positioning holes so that error rate can be reduced. Loosing in the use period can be prevented by a cylindrical locking structure and a membrane strip cross stress structure so that the human body can be prevented from being squeezed. Scalability error of the body membrane can be reduced by the integrated pressing strips. Dosage distribution is enabled to be more accurate by the hollow design of the fixing bottom plate. Operation is enabled to be simple and convenient by the humanized design of the fixing bottom plate positioning holes and the pressing strip handles so that all shortcomings and defects in existing radiation treatment positioning structures can be effectively solved. The cylindrical limb fixing type radiation treatment body part positioning hollow fixing frame is reasonable in design, simple, one-step in locking, convenient, safe and environment-friendly in operation and relatively high in practicality and generality.

Description

technical field [0001] The invention belongs to the technical field of radiotherapy positioning, and relates to a positioning and fixing device for radiotherapy, in particular to a cylindrical limb fixed radiotherapy body positioning hollow fixing frame. Especially for the positioning and fixing of the lower abdomen of the human body, it is an important tool for precise positioning and implementation in radiation therapy. Background technique [0002] Low-temperature thermoplastic sheet is a new type of medical material processed by a series of physical and chemical methods, which is specially synthesized polymer polyester. It is used for orthopedic external fixation, orthotics, and braces. Because the material has outstanding properties such as non-absorbing radiation, good shaping effect after heating and softening, and unique shape memory function (when the shaping is not satisfactory, it can be reheated, reshaped or partially heated and reshaped), etc., As well as simpl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/00
Inventor 张鹏封巍
Owner ZHEJIANG CANCER HOSPITAL
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