在医疗行业中,金属 3D 打印技术已广泛应用于硬组织修复与替代。不锈钢、钛合金等金属材料一直是硬组织植入物的传统原材料。随着 3D 打印在医疗领域的不断推广,PEEK 材料逐渐在众多医用 3D 打印材料中脱颖而出,这并非偶然。
PEEK 具有优异的生物相容性,与传统用于植入物的钛材料相比,其加工与成型更为容易;同时,PEEK 具备更好的 X 射线透过性,并在弹性模量方面更接近人体骨骼。正因具备这些突出优势,PEEK 已成为替代钛合金植入物最重要的热塑性材料之一,并已进入实际生产与临床应用阶段。
胡桃夹综合征(又称左肾静脉受压综合征)是由于腹主动脉与肠系膜上动脉之间,或腹主动脉与脊柱之间的夹角异常狭窄,导致左肾静脉回流至下腔静脉受阻,其形态类似被胡桃夹夹住的坚果。该异常会引发静脉反流、肾门静脉曲张以及左肾静脉压力升高,主要临床表现包括血尿、蛋白尿、左侧腰腹部疼痛,女性可出现盆腔淤血,男性则可能出现左侧精索静脉曲张。尽管该疾病较为少见,但其诊断十分重要,因为长期左肾静脉高压可能导致慢性肾病甚至左肾静脉血栓形成等严重并发症。
手术治疗是解除左肾静脉受压、缓解症状的最有效方式。2018 年,中国唐都医院泌尿外科完成了全球首例采用 3D 打印技术、以生物相容性 PEEK 材料制造人体植入物的手术,为胡桃夹综合征的治疗开创了新的先例。
PEEK 的打印对环境温度和喷嘴温度要求极高,因此 3D 打印设备必须具备稳定的恒温腔体以及高温打印能力。唐都医院在远铸智能 FUNMAT HT 3D 打印机上找到了满足医用 PEEK 打印需求的理想解决方案,并进一步探索了该材料在医疗领域的更多可能性。FUNMAT HT 的主要优势在于其最高可达 90°C 的加热腔体以及最高 450°C 的挤出喷嘴,可有效防止 PEEK 打印件在成型过程中发生翘曲。

过去,此类手术所使用的植入物多为钛合金材料。随着 3D 打印在医疗领域应用的不断深入,PEEK 逐渐受到越来越多的关注。作为一种热塑性工程塑料,PEEK 具备优异的力学性能和稳定表现,其生物相容性、耐化学性、易加工性以及可重复灭菌等特性,使其成为钛合金材料的有力替代方案。
中国某医科大学 3D 打印研究中心主任曹铁生教授指出:“与此前使用的钛合金植入物相比,PEEK 植入物具有多方面优势。首先,PEEK 材料不会影响患者后续的医学检查,如 CT、B 超、核磁共振等;同时,也不会给患者乘坐飞机或通过安检带来不便。此外,PEEK 及其复合材料具有良好的耐磨性能,可有效避免因磨损颗粒引发的植入物周围炎症和骨溶解问题。因此,PEEK 在骨科植入物中的应用,被认为是替代传统钛合金植入物的最佳候选材料之一。”
Their in-house INTAMSYS Printers 3D printed parts have a unique application in carbon-fiber structures. To shape the carbon-fiber structures and prevent them from melting at high temperatures during the process, the team uses 3D-printed parts made from PEI material. The high strength and heat resistance of PEI make it suitable for the hot and pressurized environment inside an autoclave.
The team also uses PEI a lot inside their high-voltage accumulator. With its fire resistance and high strength abilities, PEI is again the perfect choice for many parts inside the accumulator. One of these parts is Air Geo, which is located inside the accumulator at the back of the car. This component serves as a housing for cables, relays, fuses, and numerous PCBs, ranging from light indicators for the accumulator to the accumulator management system.
After thorough research and benchmarking, WEERG chose INTAMSYS as their supplier. The INTAMSYS FUNMAT PRO 410 met all their requirements with features like a heated chamber, dual heated nozzles, and a heated filament chamber.
INTAMSYS offered one single solution that got it all:


We accompany our customers in a professional manner throughout the entire project - from planning and design to the prototype or the production of a complete series. Combining our 3D printing processes with conventional component processing, post-processing and surface refinement of the prototypes, small series or even a trade fair exhibit is our daily business. Since the company was founded in 1995, our experienced team in Gross-Gerau has made a name for itself well beyond the borders of the Rhine-Main area. We are one of the leading service providers for everything to do with 3D printing and have more than satisfied customers from a wide variety of industries - from the automotive and consumer goods industries to mechanical engineering and companies from the medical technology sector.
Alex Di Maglie
Managing Director, 4D Concepts
We were looking for printers that can print high-performance materials and run 24/7 on our production floor. INTAMSYS offered a robust printer, a nice aesthetic finish, and a true partnership.
Matteo
Founder & CEO, WEERG

跨学科融合、医工结合等创新思维,是推动临床医学进一步发展的重要途径,而医疗 3D 打印技术正是一把能够解决实际临床问题的“利器”。我相信,在不久的将来,3D 打印技术将推动医疗行业迈入一个令人振奋的新时代。
曹铁生 教授
唐都医院
3D PRINTER
FUNMAT PRO 410
COST-EFFECTIVE
Print Larger, Print More
OPEN
Open-Sourced Filaments
INTAMSYS has sponsored the GreenTeam with a FUNMAT HT 3D printer, INTAM™ filaments, and consultation services. The 3D printed parts from INTAMSYS are used in various subsystems of the car, including the battery system, braking system, and power electronics.
3D PRINTER
FUNMAT HT
COST EFFICIENCY
Lower Cost, Shorter Lead Times
MATERIAL SUPERIORITY
Versatile INTAM™ Polymers
The tank holder is a new part in this year´s racing car. The part is printed on the FUNMAT PRO 610HT with the material choice of ABS. For the driverless disciplines, the team uses pressurized air to activate the brakes in an emergency. This year, they changed the concept of how pressurized air is stored, which required a new mounting solution. The tank holder is designed to solve this challenge.
Other 3D printed parts, using the FUNMAT PRO 610HT and PC material, are the flap ribs that play a crucial role in the construction of the car’s side wing. These ribs are glued into the carbon-fiber shells and incorporate threaded inserts for attaching the wing to the chassis.
While the team has used these ribs for years, they have redesigned for this season to accommodate changes in the aerodynamic shape of the wings. Using INTAMSUITE™ NEO and the 3D printing technology, they conducted topology optimization to achieve the lightest possible geometry, resulting in an organic shape that would not be possible to manufacture by milling.
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