SOUTH PLAINFIELD, N.J.--(BUSINESS WIRE)--The MedTech Group, a leading medical device contract manufacturer, announced the closing of its merger with Advanced Polymers, one of the industry’s most respected companies. Advanced Polymers is known for producing the industry’s thinnest, strongest and smallest heat shrink tubing, superior balloon-making capabilities and specialized catheter design capabilities. New Hampshire based Advanced Polymers joins the design specialists at TDC Medical in The MedTech Group’s integrated family of companies. Their combined capabilities create a dynamic, comprehensive offering that includes full scale design and development and global contract manufacturing for complex components and devices.