Avista Capital Partners-backed Probo Medical, a medical devices company offering ultrasound probes and ultrasound systems, agreed to acquire Ultra Select Medical, a distribution company that supplies a wide variety of ultrasound machines and medical equipment of various brands. Financial terms were not disclosed. "As our business continues to grow and expand, we see this as a perfect time to align with Probo. We have known the Probo team well for decades and knew we would arrive at a day when we would come together. We are excited for what this combination will bring to our customers, OEM partners and employees," W.C. Peeler, Ultra Select CEO.