Miniature Medical leadscrew

24th February 2011
Posted By : ES Admin
Miniature Medical leadscrew
Miniature lead screw designs have often been challenging with regards to application performance verses reliability and cost. A recent medical application supplied by Abssac Limited posed some significant technical obstacles, which were successfully overcome.
Using a 3mm diameter stainless steel trapezoidal thread form with a 1mm lead formed the basis of the design within an automated micro syringe device. The driven nut was used to provide the linear motion that would accurately dispense the drug. The nut was eventually manufactured from Turcite and incorporated an attachment tang which would provide the connection between syringe plunger. Turcite was suggested as the nut material as it exhibits self lubricating characteristics. However, in an effort to reduce operational drag further and improve efficiency, the lead screw was then coated with Teflon to make a very low friction linear assembly.

The final part measured 30mm in length and is supplied complete with a machined journal for motor connection. Abssac was able to supply the parts on budget and have exceeded reliability and performance demands set by the customer.

You must be logged in to comment

Write a comment

No comments




More from ABSSAC LIMITED

Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

GISEC Global
23rd April 2024
United Arab Emirates Halls 2-8 - Dubai World Trade Centre
The Magnetics Show US
22nd May 2024
United States of America The Pasadena Convention Center
2024 World Battery & Energy Storage Industry Expo (WBE)
8th August 2024
China 1st and 2nd Floor, Area A, China Import and Export Fair Complex