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Tenon-and-mortise limb fixing type radiation treatment body part positioning hollow fixing frame

A radiotherapy and fixed technology, which is used in the field of radiotherapy positioning devices and mortise and tenon limb fixed radiotherapy positioning and fixation devices, can solve the problem of lack of limb limit fixation, difficult to control the elasticity of low temperature thermoplastic film body, fixation failure, etc. problems, to achieve the effect of scientific design of cross-stressed structure, simplified and convenient operation of technicians, strong practicability and versatility

Active Publication Date: 2015-08-05
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; (7) The limb limit fixing is missing; (7) The operation is laborious and time-consuming and cumbersome

Method used

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  • Tenon-and-mortise limb fixing type radiation treatment body part positioning hollow fixing frame
  • Tenon-and-mortise limb fixing type radiation treatment body part positioning hollow fixing frame
  • Tenon-and-mortise limb fixing type radiation treatment body part positioning hollow fixing frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 Mortise and Tenon Body Positioning Hollow Fixture for Body Radiation Therapy

[0022] The mortise-and-tenon limb-fixing type radiotherapy body positioning hollow fixing frame of the present invention is composed of two parts: a mortise-and-tenon limb-fixing type fixing frame and a mortise-and-tenon limb-fixing type body membrane.

[0023] see figure 1 , figure 2 , Mortise and tenon limb fixed frame The fixed groove wall 19, the pressure plate 24, the fixed bottom plate 25, the pressure plate positioning bean 32, the pressure plate positioning concave 33, the bottom plate slope 34, the treatment groove 35, the bottom plate positioning hole 37, the bottom plate hollow part 38, the bottom plate composite positioning hole 39, and 10 tenons The shank-type platen structure 102, the 8-tool locking plate structure 104 and the expansion bolt hole structure 105 are composed. The fixed bottom plate 25 is the main structure of the fixed frame. It is a rectangle,...

Embodiment 2

[0026] Example 2 Method of use of the present invention

[0027] 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. After it is fully softened, each person lifts the membrane on each side The strip handle 5 covers the position that needs to be fixed and positioned, and stretches the softened low-temperature thermoplastic sheet 1 through the opposite film strip 2, puts the film 903 in place on the fixed tenon 20 on the fixed frame, and inserts...

Embodiment 3

[0031] Example 3 See Table 1 for the results of the comparison between body membrane limb immobilization and other immobilization methods for radiotherapy.

[0032]

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PUM

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Abstract

The invention provides a tenon-and-mortise limb fixing type radiation treatment body part positioning hollow fixing frame which is composed of two parts of a tenon-and-mortise limb fixing type fixing frame and a tenon-and-mortise limb fixing type body membrane. The design of the cross stress structure of a lock sheet structure and a pressing plate is scientific so that loosing of fixing in the use period does not need to be worried; damage to the human body caused squeezing can be avoided by application of a U-shaped treatment groove; more rapid operation can be realized and scalability error of the body membrane can be reduced as much as possible by the integrated design; dose distribution is enabled to be more accurate by the hollow design of a fixing bottom plate; and technician operation is enabled to be simplified and convenient by the design of fixing bottom plate positioning holes and pressing strip handles so as to be safe, environment-friendly, obvious in fixing effect and relatively high in practicality and generality. The tenon-and-mortise limb fixing type radiation treatment body part positioning hollow fixing frame is reasonable in design. Position limiting and fixing of the external contour of the human body trunk part can be realized, and the tenon-and-mortise limb fixing type radiation treatment body part positioning hollow fixing frame is particularly suitable for the inferior belly part of a patient so as to achieve or be close to zero displacement. All shortcomings and defects in existing radiation treatment positioning structures can be effectively solved.

Description

technical field [0001] The invention belongs to medical equipment, and relates to a radiotherapy positioning device, in particular to a mortise and tenon body-fixed radiotherapy positioning and fixing device, which is especially aimed at positioning and fixing the lower abdomen of a human body and is an important tool for precise positioning in radiotherapy. 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 simple operation and convenient fixation, it is the most ideal external...

Claims

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Application Information

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