Mequon-based Titan Spine LLC announced it has closed a “substantial” round of series B financing of an undisclosed amount.

The interior of Titan Spine’s manufacturing plant in Brown Deer.

The medical device developer’s current investment partner, Texas private equity firm Southlake Equity Group, led the round.

Southlake made its initial investment of $7.5 million in June 2016. It committed to another $7.5 million in a second tranche, which was deployed in February 2017.

Titan Spine said it will use the funding “to drive the next stage of growth of the company” through product line additions, sales team expansion and accelerated research and development.  The company makes titanium spinal interbody implants with a specially grooved surface to promote bone growth, for use in spinal fusion surgeries.

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