3D打印由快速原型服务提供商开发的解剖模型Laser Modelling Israel(LMI) have aided surgeons in a complex segmentation surgery for conjoined twins.
Produced using HP’s Multi Jet Fusion (MJF) technology, the intricately detailed 3D printed models were practiced on by surgeons before performing the surgery, which was set to be extremely difficult with multiple complications.
“HP’s 3D printing technology is not only hugely advantageous to the medical work we do, but also for the other industries we work for,” said Arie Kalo, Founder of LMI. “I find it extremely rewarding seeing our products and solutions coming to life.”
Installing HP’s MJF technology
Since its establishment in 1998, LMI has provided rapid prototyping and manufacturing services for multiple high-tech companies in Israel. The firm has provided 3D printed products for a wide array of industries, including medical, military, and consumer products.
在早期，该公司投资了SLA 3D打印机来履行其订单，但是对惠普的MJF 3D打印技术作为更好的选择。从那以后，LMI安装了HP MJF 217机器，最近获得了第三台机器HP MJF 4200系统在Covid-19-19大流行期间，以支持增加需求。
根据LMI的说法，MJF 4200的准确性对于其3D打印服务是“无价的”，这是因为该机器的打印内质量检查有助于最大程度地减少错误，并可以轻松，准确地跟踪工作的进度。这些好处对于生产医学模型尤其有利，LMI一直在利用这些能力来与医院建立多个合资伙伴关系。
Separating conjoined twins with 3D printed models
LMI部署其医学专业知识的一个特别重要的项目是对两个结合双胞胎的突破性分割手术，这些双胞胎在头上融为一体。作为操作准备的一部分，LMI与外科3D印刷专家Limor Haviv合作，外科3D印刷公司的创始人3d4op。
Haviv在以色列各地的医院中作为外科专家内部工作，并通过根据患者的CT和MRI扫描设计模型来帮助外科医生为手术做准备。LMI定期与她合作，将她的设计印刷在其HP MJF打印机的机队上，使Haviv能够在需要时快速将医疗模型运送到医院。
对于分割手术，LMI和HAVIV共同努力，使用HP MJF 4200机器以及PL12和CPU材料一起设计和打印双胞胎模型。合作伙伴使用HP的3D打印技术生产了模型的身体，皮肤和头骨，而更详细的部分（例如静脉）是使用柔和的材料制造的。
这些模型被制造出来，以便可以通过磁铁连接并完全移动，以使外科医生能够尽可能实际模拟外科手术。
According to LMI, MJF technology was ideally suited to this particular application, as parts produced via the technology are affordable and can be produced quickly and repeatedly. In the case of the twin’s segmentation surgery, this was a key benefit as LMI could rapidly produce different-sized models as the twins grew.
The MJF 4200 enabled multiple models to be produced in one assembly, therefore eliminating the need to print numerous separate parts which would slow down the production process.
利用MJF技术来制造模型的另一个好处是使用的材料，该材料允许以肤色的颜色绘制模型。该材料还使该模型得以进行消毒，因此可以安全地放置在操作区域的附近。
Haviv说：“惠普技术的决心真是太神奇了。”“它使我们能够看到所有复杂的细节，例如小骨头。每个骨骼的密度也可以根据每个患者进行模拟，这对医务人员非常有益。”
Aiding surgery with 3D printing
解剖建模是more prolific applications of 3D printingin the medical sector, with increasing numbers of medical centers and hospitals running their own in-house 3D printing facilities.
例如，当与3D扫描和X射线技术结合使用时，可以为尸体提供更容易获得，负担得起和个性化的替代品，并证明在更好地为复杂手术的外科医师准备外科医师方面有利。
3D打印技术，例如Mimaki，可以与以前无法实现的颜色保真度, andsave several hours in surgical timein some cases. Additionally, increasing numbers of 3D printing companies are获得ISO认证对于他们的3D打印模型获得FDA清除。
因此，即时护理3D打印的解剖建模服务正变得越来越流行，Stratasys和Ricoh USA将各自的专业迅速相结合交付3D打印模型to healthcare facilities, andFast Radius和Axial3Ddevising a新的“ DICOM到印刷”服务for surgeons and hospitals across North America.
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特色图片显示连接双胞胎的3D打印模型。通过LMI照片。
