Mortise and Tenon Limb Fixation Hollow Fixture for Body Positioning in Radiation Therapy

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...

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

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