US 3D printer manufacturer3D Systemshas announced its entry into the radiation oncology market with the launch of its new Virtual Surgical Planning or‘VSP’ Bolus解决方案。
VSP推注服务旨在实现用于癌症治疗的医疗设备的生产，允许临床医生以量身定制的厚度打印3D，从而减少仪器和患者之间的任何气隙。这种贴合的拟合度不仅使生物相容性弹性体产生的零件更加舒适，而且有可能提高其治疗功效和患者的生存机会。
“While radiotherapy has become recognized as a common course of treatment for cancer diagnoses, each case is as unique as each patient,” explains Menno Ellis, Executive VP of Healthcare Solutions at 3D Systems. “Blending the experience of our biomedical engineers, our biocompatible materials, 3D printing technology, and best-in-class digital workflows, we are able to both design and produce patient-specific devices to help improve the delivery of radiotherapy treatment.”
“我们的新VSP推注产品扩大了我们的能力，以解决另一个非常重要的个性化医疗保健应用程序。”
3D Systems’ VSP portfolio
With a broad 3D printer, material and software portfolio, 3D Systems is currently able to address the manufacturing needs of clients operating in a wide variety of industrial and medical verticals. As one of the core pillars of its offering in the latter, the firm’sVSP Surgical Planningservices currently see it work with clinical partners, to develop custom medical solutions that improve patient outcomes.
Carried out using 3D Systems’ suite of 3D printing resources, these services meet a host of healthcare needs, from virtual surgical planning right through to anatomic modeling and the creation of craniomaxillofacial and orthopaedic devices.
In order to facilitate such projects, the firm continues to seek FDA approval, both for its services and using new materials within medical applications. Since gaining 510(k)clearance for its VSP Orthopaedics platform，3D系统继续接收相同的FDA批准使用Laserform Ti和Duraform Prox– to create maxillofacial guides.
该公司还增加了新的VSP杂交颌面指南雷竞技官网登录to its VSP Surgical Planning portfolio in April 2021. Designed to help surgeons operate with greater precision and confidence, the devices combine the strength of titanium with nylon’s softness, making them robust yet malleable enough for occlusal registration.
Moving into radiation oncology
根据3D系统本身引用的数据，在治疗的某个时候，所有被诊断为癌症患者的人中约有一半接受放疗。在手术过程中，需要患者穿上称为“推注”的衣服，这是一种灵活的装置，旨在紧密地符合皮肤，并在需要的任何人体内靶向辐射。
但是，3D系统说，许多当前的设备在推注和患者的解剖结构之间留出了空间，这可能导致癌细胞没有得到所需的剂量，甚至留下容易受到不需要辐射的人体的相邻区域。据说对临床人员来说，反复生产这种能量调节设备也很困难，尤其是在试图与职责相比的平衡时。
为了帮助医学物理学家，剂量分析师和辐射肿瘤学家克服了这些问题，因此3D Systems开发了一种替代的3D打印工作流，它称为VSP Bolus。在公司修订的设置中，临床医生能够提交患者的CT扫描数据，然后可以将其细分并用作通过其自定义推注的基础DICOM To Print(D2P) software.
Once ready, the device is sent for production at one of 3D Systems’ certified medical instrument manufacturing facilities, in a way that frees radiotherapy staff from having to create it from scratch themselves.
除了最近获得FDA 510（k）间隙外，该公司表示，其服务还消除了对设备和患者皮肤之间的任何障碍的需求，同时可以生产可重复使用的大麻。用3D系统的话来说，这是独一无二的，因为它使VSP推注成为“市场上唯一的解决方案，该解决方案根据患者的治疗计划提供完整的设计和生产服务。”
放射治疗中的3D打印
Though they may not quite have the resources required to roll them out at the same scale as 3D Systems does, there are several other companies and research groups also investigating the potential of 3D printed radiotherapy devices. Back in 2020,适应医学技术raised $1.8 million towards the development of itsoncological device 3D modeling software.
At北卡罗来纳州立大学另一方面，研究人员使用3D打印来开发更舒适的癌症患者的辐射反射天线to wear during microwave breast hyperthermia procedures. By tweaking their device’s level of infill, the team behind the project has even been able to adjust its dielectric constant, optimizing its performance at different exposure levels.
A collaborative group based at the达纳 - 法伯癌研究所,Brigham and Women’s Hospital,Massachusetts General HospitalandMIThave also utilized the technology to creategastro-radiation shielding for cancer patients. Using the custom devices, which prevent gamma and X-ray-induced radiation toxicity in tissues, it’s predicted that unneeded exposure could be reduced by up to 30%.
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特色图像显示了准备3D打印的VSP注销医疗设备的3D型号。图像通过3D系统。
