POWER OF ATTORNEY

       	I, Scott Kellen, hereby authorize and designate each of W. Morgan
Burns, Joshua L. Colburn and Andrew E. Gustafson signing singly, as my true and
lawful attorney-in-fact in my capacity as a director and/or officer of Sun
BioPharma, Inc. (the "Company") to:
	(1)	prepare and execute for and on behalf of the Company, the Form ID
and Forms 3, 4 and 5 in accordance with Section 16(a) of the Securities
Exchange Act of 1934 (the "Exchange Act") and the rules and regulations
promulgated thereunder and other forms or reports Company's behalf as may be
required to be filed in connection with ownership, acquisition, or disposition
of securities of the Company, including Form 144 and Schedule 13D or Schedule
13G;

	(2)	do and perform any and all acts for and on my behalf which may be
necessary or desirable to complete and execute any such Form ID, Forms 3, 4 or
5, Form 144, Schedule 13D or Schedule 13G  and timely file such form with the
Securities and Exchange Commission and any stock exchange or similar authority;
and

	(3)	take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be to my benefit,
in my best interest, or legally required of me, it being understood that the
statements executed by such attorney-in-fact on my behalf pursuant to this
Power of Attorney shall be in such form and shall contain such terms and
conditions as such attorney-in-fact may approve in such attorney-in-fact's
discretion.

	I hereby further grant to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as I might or could do if
personally present, with full power of substitution or revocation, hereby
ratifying and confirming all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be
granted.  I hereby acknowledge that the foregoing attorneys-in-fact, in serving
in such capacity at my request, are not assuming, nor is the Company assuming,
any of my responsibilities to comply with Section 16 of the Exchange Act.

       This Power of Attorney shall remain in full force and effect until I am
no longer required to file Form ID or Forms 3, 4 and 5 with respect to my
holdings of and transactions in securities issued by the Company, unless
earlier revoked by me in a signed writing delivered to the foregoing
attorneys-in-fact.  Notwithstanding the foregoing, if any such attorney-in-fact
hereafter ceases to be at least one of the following:  (i) a partner of Faegre
Baker Daniels LLP or (ii) an employee of Faegre Baker Daniels LLP, then this
Power of Attorney shall be automatically revoked solely as to such individual,
immediately upon such cessation, without any further action on my part.
	I hereby revoke all previous Powers of Attorney that have been granted by
me in connection with my reporting obligations under Section 16 of the Exchange
Act with respect to my holdings of and transactions in securities issued by the
Company.

	IN WITNESS WHEREOF, I have caused this Power of Attorney to be duly
executed as of this 9th day of October, 2015.


/s/ Scott Kellen