Exhibit 23(a) CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the use in this Prospectus, which is part of the Registration Statement of Trimedyne, Inc. on Form SB-2 of our report dated December 21, 2006, on the consolidated financial statements of Trimedyne, Inc. as of and for the year ended September 30, 2006. We also consent to the use of Corbin & Company, LLP's name as it appears under the caption "Experts." CORBIN & COMPANY, LLP Irvine, California December 21, 2006 II-5