Adjustable applicator is provided with the adjusting cover on the outer circumferential surface of the applicator body, adjust the cover and the applicator body is provided with a plurality of partitions along the length direction of the same application ontology, the adjusting cover is divided into a plurality of regulatory regions, the arc regulating lead block piece is placed in the regulatory region. According to the specific location of lesions, targeted insertion and removal of all or part of adjusting lead piece, and non lesion areas by adjusting the lead block block, only to irradiate the lesion area can increase in the dose of irradiation area of lesions and not non lesion region can improve the therapeutic effect of irradiation. Again, no damage to normal vagina or rectum tissue, reduce the complications of normal tissues. And can be adjusted according to the needs of the clinical treatment in the irradiation area at any time. The utility model has the advantages of simple structure, easy implementation, low cost and convenient use, and can flexibly adjust the irradiation area according to the position of the patient's focus, and has wide application range.
【技术实现步骤摘要】
本技术涉及放射治疗阴道或直肠癌症的施源器,具体说是一种可调式施源器,属医疗器械。
技术介绍
采用施源器对阴道或直肠癌症进行近距离放射治疗,具有直接杀伤肿瘤、治疗效果好、复发率低等优点,广泛应用于临床肿瘤的治疗。但是,目前尚没有专用于阴道或直肠癌症放射治疗的施源器,大都是用通常的宫腔管代替置入阴道或直肠施源。用通常的宫腔管对阴道或直肠癌症进行治疗,不能满足患者个体化治疗的需要,对部分小范围病灶照射治疗的同时,也使患者大部分正常阴道或直肠组织受到相同剂量的辐射损伤。如果减少照射剂量,影响治疗效果,而增大照射剂量,会造成正常阴道或直肠组织受到过度照射而被损坏,引起放射性肠炎、放射性膀胱炎等并发症,给患者带来不应有的损害。
技术实现思路
本技术的目的是针对上述不足,提供一种结构简单、成本低、使用灵活方便、可根据患者病灶位置调节辐照区域的可调式施源器。实现本技术目的的技术方案是:这种可调式施源器,由圆柱形施源器本体构成,特点是在施源器本体的外圆周表面设有圆柱形调节罩,调节罩与施源器本体之间设有沿施源器本体长度方向的至少两个隔板, ...
【技术保护点】
一种可调式施源器,由圆柱形施源器本体构成,其特征在于:在施源器本体的外圆周表面设有圆柱形调节罩,调节罩与施源器本体之间设有沿施源器本体长度方向的至少两个隔板,将调节罩分隔成沿施源器本体圆周方向的至少两个调节区,在调节区中放置弧形调节铅挡片。
【技术特征摘要】
1.一种可调式施源器,由圆柱形施源器本体构成,其特征在于:在施源器本体的外圆周表面设有圆柱形调节罩,调节罩与施源器本体之间设有沿施源器本体长度方向的至少两个隔板,将调节罩分隔成沿施源器本体圆...
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