Johnson & Johnson's Ethicon Endo-Surgery Inc. acquired privately held medical device company Megadyne Medical Products Inc. for an undisclosed sum.

The addition of Megadyne's portfolio of electrosurgical tools to Ethicon's suite of energy devices will improve patient care in surgeries across all specialties, said Michael del Prado, company group chairman of Ethicon. Further, the deal expands Ethicon's presence in the global energy market.

Megadyne products include monopolar and bipolar electrodes, patient return electrodes, generators and smoke evacuation systems.