If a medical device isn’t working properly, a patient’s life can be seriously impacted. Sometimes, even a small change in how the screw used in the device is manufactured can make a major difference. Whether the threads are ground or rolled plays a major role in how the screw performs. Read more about the difference between these two processes.
A manufacturer approached PST after running into an issue developing the screw thread component of a prosthetic foot. The screw was to act like an Achilles tendon by lowering and raising an individual’s heel.
Their customers were complaining about the clicking noise and feeling in their joints. These sounds drew unnecessary attention to their prosthetic device.
The client wanted a quieter, more comfortable screw thread solution.
A Custom Thread Grinding Solution
Although the client recognized the problem, they didn’t have a solution in mind. They had hit a road block and weren’t sure what to do next.
Our engineers and production experts developed a fix – a custom screw thread that reduced noise and friction. Our experts tackled the project from the ground-up, recommending materials and designs before implementing the solution.
The screw was formed by precision thread grinding. The thread grinding process allowed for increased accuracy and repeatability that couldn’t be achieved through rolled threads. Centerless grinding techniques reduced the noise, so the prosthetic foot was nearly invisible to others. This solution also gave prosthetic device users a more comfortable experience. The client and their customers were happy.
PST Thread Grinding Services
We take pride in developing custom screw thread solutions for our customers and their clients. As an OEM partner, we use our industry expertise to deliver quality products. We have used this custom fit process in various applications to enhance customers’ products.
If you need help with your custom thread grinding project, contact us to get started.