Exhibit 10.1

CONVERTIBLE SUBORDINATED PROMISSORY NOTE MATURITY DATE

THIRD EXTENSION AGREEMENT

Whereas, Bioject Medical Technologies Inc., an Oregon corporation (the “Company”), borrowed $508,896 from Life Sciences Opportunities Fund II (Institutional), L.P., a Delaware Limited Partnership (the “Lender”), pursuant to that certain Convertible Subordinated Promissory Note, dated as of December 5, 2007 (the “Note”); and

Whereas, the Maturity Date of the Note was extended from May 15 2009 to July 15, 2009, pursuant to an Extension Agreement dated April 6, 2009, between the Company and the Lender; and the Maturity Date of the Note was further extended from July 15, 2009 to August 15, 2009, pursuant to the Second Extension Agreement dated July 13, 2009, between the Company and the Lender;

Whereas, no principal and interest have been paid to date on the Note; and

Whereas, the Company has requested that the Lender extend the Maturity Date of the Note and all principal and interest due thereon to August 31, 2009;

For good and valuable consideration, the Company and the Lender agree as follow:

The Maturity Date of the Note is hereby extended to August 31, 2009 and all principal and interest due and payable on the Note shall be due and payable on August 31, 2009 (the “Third Extension”). All of the other terms and conditions of the Note, the Convertible Note Purchase and Warrant Agreement between the Company and the Lender dated as of