IRVINE, Calif., Jan. 5 -- Trimedyne Inc. has entered into a comarketing agreement with PRI Inc., a subsidiary of Medical Resources Management Inc, a provider of lasers and other medical/surgical equipment to hospitals and outpatient surgery centers in the western US.Trimedyne will supply its Holmium lasers to PRI and PRI will provide the lasers, along with a skilled laser operator, to hospitals and surgery centers under service contracts on a fee-per-case basis. Trimedyne and PRI will share in the revenues resulting from the use of the lasers and the associated disposable and reusable fiber optic devices.Trimedyne recently received clearance from the US Food and Drug Administration to market its Holmium lasers in a minimally-invasive foraminoplasty procedure, which orthopedic surgeons can now perform with an endoscope inserted through a tiny puncture in the back to treat herniated and ruptured lumbar discs. The procedure is performed in an outpatient basis, with the patient usually able to return to work and light activities in a few days.