A new twist on traditional medical instruments

A new twist on traditional medical instruments

Innovative single-use torque instruments use tough polycarbonate

Orthopedic surgery can fix a range of ailments. Metal, reusable torque instruments are go-to tools for these procedures. Now there’s a new twist on this oft-used instrument.

The handles of TorqueSafe™ instruments, designed for trauma, reconstruction, small bone and other procedures, use Makrolon® polycarbonate from Covestro.


Torque-applying instruments are manufactured as reusable instruments, and are cleaned, reprocessed and recalibrated after each surgical procedure. Caltorque Medical Products (CMP), a division of California Torque Products Inc., sought to revamp the instruments.


CMP wanted to take what was traditionally a stainless steel instrument with a silicon over-molded handle and transition it to a mostly plastic, cost-effective alternative offering the same at-use performance.


CMP chose Makrolon® polycarbonate from Covestro to form the handles of its TorqueSafe™ instruments, which are designed for trauma, reconstruction, small bone, cranio maxillofacial fixation, spine and extremity procedures. The material met the robust requirements of the surgical setting and need for high-stress performance. The ability to repurpose materials post-use and exceed in-use environmental and in-situ requirements were also cited by CMP as benefits of using Makrolon® polycarbonate.

Case Profile


Covestro LLC




TorqueSafe™ torque instruments

Makrolon® polycarbonate - the state of the art material for a broad range of design applications that possesses phenomenal properties

Makrolon® polycarbonate is lightweight, yet does not sacrifice good impact resistance.

CMP selected the material due to its compatibility with sterilization modalities, ability to meet care and handling requirements, durability in transport and global availability.

Makrolon® polycarbonate is an easily molded material, yet it retains its original shape when exposed to heat or humidity because of its high dimensional stability.

Its glass-like transparency makes Makrolon® polycarbonate an attractive option for use in many different applications.

Makrolon® polycarbonate boasts the ability to be recycled and biocompatibility.

Register for more information
Forgot your password?