Development of new-type locating rod for radiotherapy

VernacularTitle:放射治疗用新型定位杆的研制
Author: Zijie WANG ; Bing XU ; Zhiwei CHEN ; Zhekai HU
Keywords: locating rod; radiotherapy; buckle; oncotherapy; postural immobilization
From: Chinese Medical Equipment Journal 2017;38(3):35-37,42
CountryChina
Language:Chinese
Abstract: Objective To develop a new type of locating rod with easy installation and high reliability for radiotherapy.Methods The locating rod was composed of a joining beam,two clamping buckles and buckle holders.The joining beam had the length being 530+03 mm.One of the buckles was put at one end of the beam,and the other slided along a stool.An eccentric wheel drove the sliding buckle to determine the space between two buckles,and a returning spring was involved in to enhance the compliance of the sliding buckle.Results The rod gained easy installation and operation,and was compatible with the bed board with the width of 5300 mm.There was no sideslip occurred after locking the rod,and the sideslip shift was not more than 1 mm in case of 20 kgf (1 kgf=9.8 N) lateral traction.Conclnsion The rod has high performances and meets clinical requirements.