Exhibit 23.1

            Consent of Independent Registered Public Accounting Firm

     We consent to the reference to our firm under the caption  "Experts" in the
Registration  Statement Form S-3 and related  Prospectus of THERMOGENESIS  CORP.
for the registration of $75,000,000 of its common stock and to the incorporation
by reference  therein of our reports dated August 26, 2005,  with respect to the
financial  statements and schedule of THERMOGENESIS  CORP.,  THERMOGENESIS CORP.
management's  assessment of the effectiveness of internal control over financial
reporting, and the effectiveness of internal control over financial reporting of
THERMOGENESIS  CORP.,  included  in its Annual  Report  (Form 10-K) for the year
ended June 30, 2005, filed with the Securities and Exchange Commission.


                                                           /s/ Ernst & Young LLP


Sacramento, California
November 18, 2005