{"id":4759,"date":"2026-01-08T15:39:57","date_gmt":"2026-01-08T14:39:57","guid":{"rendered":"https:\/\/buw-engineering.com\/?post_type=erfolgsgeschichte&p=4759"},"modified":"2026-02-04T13:32:21","modified_gmt":"2026-02-04T12:32:21","slug":"embedded-software-and-electronics-for-a-partially-reusable-flushing-system","status":"publish","type":"erfolgsgeschichte","link":"https:\/\/buw-engineering.com\/en\/erfolgsgeschichte\/embedded-software-and-electronics-for-a-partially-reusable-flushing-system\/","title":{"rendered":"Embedded software and electronics for a partially reusable flushing system."},"content":{"rendered":"

e\u2011Lavage.<\/span><\/b><\/h2>\n

During hip replacement surgery or major orthopedic procedures, bone material is milled away. The resulting chips and tissue remnants must be reliably removed from the surgical site. Irrigation systems such as e-Lavage are used to clean the bone side of the implant so that the cement adheres better and the implants are therefore better anchored. <\/strong><\/p>\n

Until now, complete disposable systems have often been used for this purpose. This means that the handpiece, tubing, drive, power supply, etc. are all disposed of after an operation. This costs money and resources.<\/p>\n

H&B<\/a> wanted to improve this standard and develop a partially reusable irrigation system. The idea is that only the components that come into contact with patients and irrigation fluid are disposed of. These include, for example, the tube set and sterile cover. Reprocessing is not necessary because the drive unit is not contaminated and has no contact with the patient. This reduces the amount of material used without compromising hygiene, performance, or handling.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

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Development of compact drive electronics<\/strong> including<\/span> embedded software in C, BLDC motor control, and integrated 4-channel Li-ion charging station with up to 60 W total power.<\/p>\n<\/div><\/div><\/div>

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Safe and performance-optimized power supply<\/strong> thanks to DC\/DC converters, battery protection circuitry, EMC-optimized PCB layout, and fast charging up to 3 A per channel.<\/p>\n<\/div><\/div><\/div>

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Holistic system development<\/strong> with testing and commissioning tools, communication and display elements, and close coordination of mechanics, electronics, software, and usability, including<\/span> testing and MDR preparation.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>

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H&B<\/a> provides the strong foundation in mechanics and production. As a development partner, we contribute electronics, embedded software, and testing to ensure a safe, reusable drive system.<\/strong><\/p>\n

In cooperation with H&B, we took on the hardware and software development of the drive unit and a 4-channel Li-ion charging station for intraoperative use. The goal was to design a classic single-use system in such a way that key components could be used multiple times while maintaining the same energy efficiency, safety, and usability.<\/p>\n<\/div><\/div>

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Our tasks in the field of electronics included selecting a suitable microcontroller, dimensioning the DC\/DC converter including EMC-optimized PCB layout, defining the interfaces between hardware and software, and evaluating boundary conditions from industrial design to power consumption. In addition, we kept an eye on manufacturability and manufacturing costs, collaborated on the assembly and service concept, and provided options for later software updates.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div>

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