Vention Medical has acquired RiverTech Medical for an undisclosed amount.

Chattanooga, Tenn.-based RiverTech supplies tubing and wire coatings for medical devices.

The deal allows Vention to expand its portfolio of catheter-based devices.

Vention, headquartered in Marlborough, Mass., designs, engineers, manufactures and assembles medical devices. The company specializes in the devices used for minimally-invasive surgeries, including medical balloons, catheters and heat-shrink tubing.

Other recent medical device deals Cirtec Medical Systems LLC’s investment in Core Manufacturing LLC and TranS1 Inc.'s (Nasdaq: TSON) purchase of Baxano Inc.

For more on medical devices, see “Medical Devices Drive Health Care M&A,”  “Healthy Investments,” “Medical Device Makers May Move” and “Strategic Buyer of the Year: Covidien.”