Document:

Exhibit 4.9

ROSS MILLER 

   Secretary of State

  204 North Carson Street, Ste 1  

  Carson City, Nevada 89701-4299 

  (775) 684-5708 

  Website: secretaryofstate.biz

	 	 	
      Filed in the office of 

      Ross Miller 

        Secretary of State 

        State of Nevada
      

    	Document Number 

       
    
	
      Certificate of Designation 

      (PURSUANT TO NRS 78.1955)
    

    	        	Filing Date and Time 

       
    
	
      Entity Number 

        C31949-1999
      

    

	USE BLACK INK ONLY – DO NOT HIGHLIGHT 	ABOVE SPACE IS FOR OFFICE USE ONLY 

Certificate of Designation

  For Nevada Profit Corporations

  (Pursuant to NRS 78.1955)

1. Name of corporation:

MedPro Safety Products, Inc.

2. By resolution of the board of directors pursuant to a provision in the articles of incorporation, this certificate establishes the following regarding the voting powers, designations, preferences, limitations, restrictions and relative rights of the following class or series of stock.

The undersigned, the Chief Executive Officer of MedPro Safety Products, Inc., a Nevada corporation (the “Company”), in accordance with the provisions of the Nevada Revised Statutes, does hereby certify that, pursuant to the authority conferred upon the Board of Directors by the Articles of Incorporation of the Company, the following resolution creating a series of preferred stock, designated as Series B Convertible Preferred Stock, was duly adopted on August 18, 2008, as follows:

RESOLVED, that pursuant to the authority expressly granted to and vested in the Board of Directors of the Company by provisions of the Articles of Incorporation of the Company (the “Articles of Incorporation”), there hereby is created out of the shares of the Company’s preferred stock, par value $0.01 per share, of the Company authorized in Article VI of the Articles of Incorporation (the “Preferred Stock”), a series of Preferred Stock of the Company, to be named “Series B Convertible Preferred Stock,” consisting of 1,493,779 shares . . . .

	3. Effective date of filing (optional):	(must not be later than 90 days after the certificate is filed)

4. Officer Signature (Required):                                x          /s/ Walter Weller                                  

Filing Fee: $175.00

IMPORTANT: Failure to include any of the above information and submit the proper fees may cause this filing to be rejected.

This form must be accompanied by appropriate fees.

CERTIFICATE OF DESIGNATION OF THE RELATIVE RIGHTS AND

PREFERENCES

OF THE

SERIES B CONVERTIBLE PREFERRED STOCK

OF

MEDPRO SAFETY PRODUCTS, INC.

     The undersigned, the Chief Executive Officer of MedPro Safety Products, Inc., a Nevada corporation (the “Company”), in accordance with the provisions of the Nevada Revised Statutes, does hereby certify that,
pursuant to the authority conferred upon the Board of Directors by the Articles of Incorporation of the Company, the following resolution creating a series of preferred stock, designated as Series B Convertible Preferred Stock, was duly adopted on
August 18, 2008, as follows:

     RESOLVED, that pursuant to the authority expressly granted to and vested in the Board of Directors of the Company by provisions of the Articles of Incorporation of the Company (the “Articles of
Incorporation”), there hereby is created out of the shares of the Company’s preferred stock, par value $0.01 per share, of the Company authorized in Article VI of the Articles of Incorporation (the “Preferred Stock”), a
series of Preferred Stock of the Company, to be named “Series B Convertible Preferred Stock,” consisting of 1,493,779 shares, which series shall have the following designations, powers, preferences and relative and other special rights and
the following qualifications, limitations and restrictions:

1. Designation and Rank . The designation of such series of the Preferred Stock shall be the Series B Convertible Preferred Stock, par value $0.01 per share (the “Series B Preferred Stock”). The maximum number of shares of
Series B Preferred Stock is 1,493,779 shares. The Series B Preferred Stock shall rank pari passu as to liquidation rights and other matters to the Company’s common stock, par value $0.01 per share (the “Common Stock”). The Series
B Preferred Stock shall be subordinate to and rank junior to all indebtedness of the Company now or hereafter outstanding.

2. Payment of Dividends .

     (a) If declared by the Company, dividends on the Series B Preferred Stock shall be on a pro rata basis with the Common Stock and all other equity securities of the Company ranking pari passu with the Common Stock as to
the payment of dividends. The payment of dividends on the Series B Preferred Stock shall be subject to the dividend rights of the Series A Preferred Stock and any other class of the capital stock of the Company ranking senior to the Common Stock
with respect to the payment of dividends.

     (b) In the event of a conversion pursuant to Section 5(a) hereof, all accrued and unpaid dividends on the Series B Convertible Preferred Stock being converted shall be, at the option of the Company, either payable in
cash on the Conversion Date (as defined in Section 5(b)(i) hereof), or converted into additional shares of Common Stock at the then-applicable Conversion Price (as defined in Section 5(d) hereof).

3. Voting Rights .

     (a) Class Voting Rights . So long as the shares of Preferred Stock outstanding shall equal at least two hundred thousand (200,000), the Company shall not, without the affirmative vote or consent of the holders of
at least seventy-five percent (75%) of the shares of the Series B Preferred Stock outstanding at the time, given in person or by proxy, either in writing or at a meeting, in which the holders of the Series B Preferred Stock vote separately as a
class: (i) authorize, create, issue or increase the authorized or issued amount of any class or series of stock ranking pari passu or senior to the Series B Preferred Stock, with respect to the distribution of assets on liquidation, dissolution or
winding up; (ii) amend, alter or repeal the provisions of the Series B Preferred Stock, whether by merger, consolidation or otherwise, so as to adversely affect any right, preference, privilege or voting power of the Series B Preferred Stock; (iii)
repurchase, redeem or pay dividends on, shares of Common Stock or any other shares of the Company’s stock ranking pari passu with the Common Stock (other than de minimus repurchases from employees of the Company in certain circumstances, and
any contractual redemption obligations existing as of the date the certificate of designations creating the Series B Preferred Stock becomes effective (the “Effective

Date”) as disclosed in the Company’s public filings with the Securities and Exchange Commission); (iv) amend the Articles of Incorporation or By-Laws of the Company so as to affect materially and adversely any right, preference, privilege
or voting power of the Series B Preferred Stock; (vi) reclassify the Company’s outstanding securities in a way that adversely affects the rights, preferences, privileges or voting powers of the Series B Preferred Stock; (vii) voluntarily file
for bankruptcy, liquidate the Company’s assets or make an assignment for the benefit of the Company’s creditors; or (viii) determine to disengage from the business of commercializing medical devices.

     (b) General Voting Rights . Except with respect to transactions upon which the Series B Preferred Stock shall be entitled to vote separately as a class pursuant to Section 3(a) above and except as otherwise
required by Nevada law, the Series B Preferred Stock shall have no voting rights. The Common Stock into which the Series B Preferred Stock is convertible shall, upon issuance, have all of the same voting rights as other issued and outstanding Common
Stock of the Company, and none of the rights of the Series B Preferred Stock.

4. Liquidation Amount .

     (a) In the event of the liquidation, dissolution or winding up of the affairs of the Company, whether voluntary or involuntary, the holders of shares of Series B Preferred Stock that are outstanding shall be entitled to
receive, out of the assets of the Company available for distribution to its stockholders after payment of such distributions as may be due to holders of the Series A Preferred Stock and any other class of the capital stock of the Company then
outstanding that ranks senior to the Common Stock with respect to the payment of liquidating distributions, an amount per share of Series B Preferred Stock equal to the amount distributable with respect to that number of shares of the Common Stock
into which one shares of the Series B Preferred Stock is then convertible, plus any accrued and unpaid dividends thereon (collectively, the “Series B Liquidation Amount”). If the assets of the Company are not sufficient to pay in full the
Series B Liquidation Amount payable to the holders of outstanding shares of the Series B Preferred Stock and any series of Preferred Stock or any other class of stock ranking pari passu, as to rights on liquidation, dissolution or winding up, with
the Series B Preferred Stock and Common Stock, then all of said assets will be distributed among the holders of the Series B Preferred Stock, Common Stock and the other classes of stock ranking pari passu with the Series B Preferred Stock and Common
Stock, if any, ratably in accordance with the respective amounts that would be payable on such shares if all amounts payable thereon were paid in full. The liquidation payment with respect to each outstanding fractional share of Series B Preferred
Stock shall be equal to a ratably proportionate amount of the liquidation payment with respect to each outstanding share of Series B Preferred Stock. All payments for which this Section 4(a) provides shall be in cash, property (valued at its fair
market value as determined by an independent appraiser reasonably acceptable to the holders of a majority of the Series B Preferred Stock) or a combination thereof.

     (b) A consolidation or merger of the Company with or into any other corporation or corporations, or a sale of all or substantially all of the assets of the Company, or the effectuation by the Company of a transaction or
series of related transactions in which more than 50% of the voting shares of the Company is disposed of or conveyed, shall not be deemed to be a liquidation, dissolution, or winding up within the meaning of this Section 4. In the event of the
merger or consolidation of the Company with or into another corporation, the Series B Preferred Stock shall maintain its relative powers, designations and preferences provided for herein and no merger shall result which is inconsistent therewith
unless otherwise approved by at least seventy-five percent (75%) of the then outstanding shares of Series B Preferred Stock; provided, however, that the number of outstanding shares of Preferred Stock must be greater than two hundred thousand
(200,000) for the voting rights set out in this Section to apply.

     (c) Written notice of any voluntary or involuntary liquidation, dissolution or winding up of the affairs of the Company, stating a payment date and the place where the distributable amounts shall be payable, shall be
given by mail, postage prepaid, no less than forty-five (45) days prior to the payment date stated therein, to the holders of record of the Series B Preferred Stock at their respective addresses as the same shall appear on the books of the
Company.

5. Conversion . The holder of Series B Preferred Stock shall have the following conversion rights (the “Conversion Rights”):

     (a) Right to Convert . At any time on or after the date of issuance of the Series B Preferred Stock (the “Issuance Date”), the holder of any such shares of Series B Preferred Stock may, at such
holder’s option, subject to the limitations set forth in Section 7 herein, elect to convert (a “Conversion”) all or any portion of the shares of Series B Preferred Stock held by such person into a number of fully paid and
nonassessable shares of Common Stock equal to the quotient of (i) the Original Issue Price (as defined in Section 5(d) below) of the shares of Series B Preferred Stock being converted divided by (ii) the Conversion Price (as defined in Section 5(d)
below) then in effect as of the date of the delivery by such holder of its notice of election to convert. In the event of a liquidation, dissolution or winding up of the Company, the Conversion Rights shall terminate at the close of business on the
last full day preceding the date fixed for the payment of any such amounts distributable on such event to the holders of the Series B Preferred Stock.

     (b) Mechanics of Conversion . The Conversion of Series B Preferred Stock shall be conducted in the following manner:

          (i) Holder’s Delivery Requirements . To convert Series B Preferred Stock into full shares of Common Stock on any date (the “Conversion Date”), the holder thereof shall (A) transmit by facsimile (or
otherwise deliver), for receipt on or prior to 5:00 p.m., New York time on such date, a copy of a fully executed notice of conversion in the form attached hereto as Exhibit I (the “Conversion Notice”), to the Company at its then principal
offices, Attention: Chief Executive Officer, and (B) deliver via overnight delivery service to the Company as soon as practicable following such Conversion Date the original certificates representing the shares of Series B Preferred Stock being
converted (or an indemnification undertaking with respect to such shares in the case of their loss, theft or destruction) (the “Preferred Stock Certificates”) and the originally executed Conversion Notice.

          (ii) Company’s Response . Upon receipt by the Company of a facsimile copy of a Conversion Notice, the Company shall immediately send, via facsimile, a confirmation of receipt of such Conversion Notice to
such holder. Upon receipt by the Company of a copy of the fully executed Conversion Notice and any original certificates representing the shares of Series B Preferred Stock being converted, the Company or its designated transfer agent (the
“Transfer Agent”), as applicable, shall, within three (3) business days following the date of receipt by the Company of the fully executed Conversion Notice and any original certificates representing the shares of Series B Preferred Stock
being converted, issue and deliver to the Depository Trust Company (“DTC”) account on the Holder’s behalf via the Deposit Withdrawal Agent Commission System (“DWAC”) as specified in the Conversion Notice, or via physical
certificate if so specified in the Conversion Notice, registered in the name of the holder or its designee, for the number of shares of Common Stock to which the holder shall be entitled. Notwithstanding the foregoing to the contrary, the Company or
its Transfer Agent shall only be obligated to issue and deliver the shares to the DTC, on a holder’s behalf via DWAC if a registration statement providing for the resale of the shares of Common Stock issuable upon conversion of the Series B
Preferred Stock is effective or such shares are otherwise eligible for legend removal, and if the Transfer Agent is a participant in the DWAC system. If the shares of Common Stock to be received pursuant to the Conversion Notice are not registered
or otherwise eligible for legend removal, the Transfer Agent shall issue a physical certificate in the name of the holder representing such shares with a restrictive legend as set forth in the Purchase Agreement and a notation that such shares are
deemed owned by the holder as of the Issuance Date for purposes of determining the holder’s holding period under Rule 144 of the Securities Act of 1933, as amended. If the number of shares of Preferred Stock represented by the Preferred Stock
Certificate(s) submitted for conversion is greater than the number of shares of Series B Preferred Stock being converted, then the Company shall, as soon as practicable and in no event later than three (3) business days after receipt of the
Preferred Stock Certificate(s) and at the Company’s expense, issue and deliver to the holder a new Preferred Stock Certificate representing the number of shares of Series B Preferred Stock not converted.

          (iii) Dispute Resolution . In the case of a dispute as to the arithmetic calculation of the number of shares of Common Stock to be issued upon conversion, the Company shall cause its Transfer Agent to promptly
issue to the holder the number of shares of Common Stock that is not disputed and shall submit the arithmetic calculations to the holder via facsimile as soon as possible, but in no event later than two (2) business days after receipt of such
holder’s Conversion Notice. If such holder and the Company are unable to agree upon the arithmetic calculation of the number of shares of Common Stock to be issued upon such conversion within one (1) business day of such disputed arithmetic
calculation being submitted to the holder, then the Company shall within one (1) business day submit via facsimile the disputed arithmetic calculation of the number of shares of Common Stock to be issued upon such conversion to the Company’s
independent, outside accountant. The Company shall cause the accountant to perform the calculations and notify the Company and the holder of the results no later than seventy-two (72) hours from the time it receives the disputed calculations. Such
accountant’s calculation shall be binding upon all parties absent manifest error. The reasonable expenses of such accountant in making such determination shall be paid by the Company, in the event the holder’s calculation was correct, or
by the holder, in the event the Company’s calculation was correct, or equally by the Company and the holder in the event that neither the Company’s or the holder’s calculation was correct. The period of time in which the Company is
required to effect conversions or redemptions under this Certificate of Designation shall be tolled with respect to the subject conversion or redemption pending resolution of any dispute by the Company made in good faith and in accordance with this
Section 5(b)(iii).

          (iv) Record Holder . The person or persons entitled to receive the shares of Common Stock issuable upon a conversion of the Series B Preferred Stock shall be treated for all purposes as the record holder or
holders of such shares of Common Stock on the Conversion Date.

          (v) Company’s Failure to Timely Convert . If within seven (7) business days of the Company’s receipt of an executed copy of the Conversion Notice (so long as the applicable Preferred Stock Certificates
and original Conversion Notice are received by the Company on or before such third business day) (the “Delivery Date”) the Transfer Agent shall fail to issue and deliver to a holder the number of shares of Common Stock to which such holder
is entitled upon such holder’s conversion of the Series B Preferred Stock or to issue a new Preferred Stock Certificate representing the number of shares of Series B Preferred Stock to which such holder is entitled pursuant to Section 5(b)(ii)
(a “Conversion Failure”), in addition to all other available remedies which such holder may pursue hereunder and under the Series B Convertible Preferred Stock Purchase Agreement (the “Purchase Agreement”) among the Company and
the initial holders of the Series B Preferred Stock (including indemnification pursuant to Section 6 thereof), the Company shall pay additional damages to such holder on each business day after such seventh (7 th ) business day that such
conversion is not timely effected in an amount equal to 0.5% of the product of (A) the number of shares of Common Stock not issued to the holder on a timely basis pursuant to Section 5(b)(ii) and to which such holder is entitled and, in the event
the Company has failed to deliver a Preferred Stock Certificate to the holder on a timely basis pursuant to Section 5(b)(ii), the number of shares of Common Stock issuable upon conversion of the shares of Series B Preferred Stock represented by such
Preferred Stock Certificate, as of the last possible date which the Company could have issued such Preferred Stock Certificate to such holder without violating Section 5(b)(ii) and (B) the Closing Bid Price (as defined below) of the Common Stock on
the last possible date which the Company could have issued such Common Stock and such Preferred Stock Certificate, as the case may be, to such holder without violating Section 5(b)(ii). If the Company fails to pay the additional damages set forth in
this Section 5(b)(v) within fifteen (15) business days of the date incurred, then such payment shall bear interest at the rate of 2.0% per month (pro rated for partial months) until such payments are made. The term “Closing Bid Price”
shall mean, for any security as of any date, the last closing bid price of such security on the OTC Bulletin Board or other quotation venue or principal exchange on which such security is traded as reported by Bloomberg, or, if no closing bid price
is reported for such security by Bloomberg, the last closing trade price of such security as reported by Bloomberg, or, if no last closing trade price is reported for such security by Bloomberg, the average of the bid prices of any market makers for
such security as reported by the Pink Sheets LLC. If the Closing Bid Price cannot be calculated for such security on such date on any of the foregoing bases, the Closing Bid Price of such security on such date shall be the fair market value as
mutually determined by the Company and the holders of a majority of the outstanding shares of Series B Preferred Stock.

          (vi) Buy-In Rights . In addition to any other rights available to the holders of Series B Preferred Stock, if the Company fails to cause its Transfer Agent to transmit to the holder a certificate or certificates
representing the shares of Common Stock issuable upon conversion of the Series B Preferred Stock on or before the Delivery Date, and if after such date the holder is required by its broker to purchase (in an open market transaction or otherwise)
shares of Common Stock to deliver in satisfaction of a sale by the holder of the shares of Common Stock issuable upon conversion of Series B Preferred Stock which the holder anticipated receiving upon such conversion (a “Buy-In”), then the
Company shall (1) pay in cash to the holder the amount by which (x) the holder’s total purchase price (including brokerage commissions, if any) for the shares of Common Stock so purchased exceeds (y) the amount obtained by multiplying (A) the
number of shares of Common Stock issuable upon conversion of Series B Preferred Stock that the Company was required to deliver to the holder in connection with the conversion at issue times (B) the price at which the sell order giving rise to such
purchase obligation was executed, and (2) at the option of the holder, either reinstate the shares of Series B Preferred Stock and equivalent number of shares of Common Stock for which such conversion was not honored or deliver to the holder the
number of shares of Common Stock that would have been issued had the Company timely complied with its conversion and delivery obligations hereunder. For example, if the holder purchases Common Stock having a total purchase price of $11,000 to
cover a Buy-In with respect to an attempted conversion of shares of Common Stock with an aggregate sale price giving rise to such purchase obligation of $10,000, under clause (1) of the immediately preceding sentence the Company shall be
required to pay to the holder $1,000. The holder shall provide the Company written notice indicating the amounts payable to the holder in respect of the Buy-In, together with applicable confirmations and other evidence reasonably requested by
the Company. Nothing herein shall limit a holder’s right to pursue any other remedies available to it hereunder, at law or in equity including, without limitation, a decree of specific performance and/or injunctive relief with respect to the
Company’s failure to timely deliver certificates representing shares of Common Stock upon conversion of the Series B Preferred Stock as required pursuant to the teams hereof.

     (c) Intentionally omitted.

     (d) Original Issue Price; Conversion Price .

          (i) The term “Original Issue Price” shall mean $8.72, and the term “Conversion Price” shall mean $2.18, subject to adjustment under Section 5(e) hereof. Notwithstanding any adjustment
hereunder, at no time shall the Conversion Price be greater than $2.18 per share except if it is adjusted pursuant to Section 5(e)(i).

          (ii) Notwithstanding the foregoing to the contrary, if during any period (a “Black-out Period ”), a holder of Series B Preferred Stock is unable to trade any Common Stock issued or issuable upon
conversion of the Series B Preferred Stock immediately due to the postponement of filing or delay or suspension of effectiveness of the Registration Statement or because the Company has otherwise informed such holder of Series B Preferred Stock that
an existing prospectus cannot be used at that time in the sale or transfer of such Common Stock (provided that such postponement, delay, suspension or fact that the prospectus cannot be used is not due to factors solely within the control of the
holder of Series B Preferred Stock or due to the Company exercising its rights under Section 3(n) of the Registration Rights Agreement (as defined in the Purchase Agreement) or the deadline for the effectiveness of the Registration Statement has not
passed as set forth in the Registration Rights Agreement, such holder of Series B Preferred Stock shall have the option but not the obligation on any Conversion Date within ten (10) trading days following the expiration of the Black-out Period of
using the Conversion Price applicable on such Conversion Date or any Conversion Price selected by such holder of Series B Preferred Stock that would have been applicable had such Conversion Date been at any earlier time during the Black-out Period
or within the ten (10) trading days thereafter.

     (e) Adjustments of Conversion Price .

          (i) Adjustments for Stock Splits and Combinations . If the Company shall at any time or from time to time after the Effective Date, effect a stock split of the outstanding Common Stock, the

Conversion Price shall be proportionately decreased. If the Company shall at any time or from time to time after the Effective Date, combine the outstanding shares of Common Stock, the Conversion Price shall be proportionately increased. Any
adjustments under this Section 5(e)(i) shall be effective at the close of business on the date the stock split or combination becomes effective.

          (ii) Adjustments for Certain Dividends and Distributions . If the Company shall at any time or from time to time after the Effective Date, make or issue or set a record date for the determination of holders of
Common Stock entitled to receive a dividend or other distribution payable in shares of Common Stock, then, and in each event, the Conversion Price shall be decreased as of the time of such issuance or, in the event such record date shall have been
fixed, as of the close of business on such record date, by multiplying the Conversion Price then in effect by a fraction:

               (1) the numerator of which shall be the total number of shares of Common Stock issued and outstanding immediately prior to the time of such issuance or the close of business on such record date; and

               (2) the denominator of which shall be the total number of shares of Common Stock issued and outstanding immediately prior to the time of such issuance or the close of business on such record date plus the number of
shares of Common Stock issuable in payment of such dividend or distribution.

          (iii) Adjustment for Other Dividends and Distributions . If the Company shall at any time or from time to time after the Effective Date, make or issue or set a record date for the determination of holders of
Common Stock entitled to receive a dividend or other distribution payable in securities of the Company other than shares of Common Stock, then, and in each event, an appropriate revision to the applicable Conversion Price shall be made and provision
shall be made (by adjustments of the Conversion Price or otherwise) so that the holders of Series B Preferred Stock shall receive upon conversions thereof, in addition to the number of shares of Common Stock receivable thereon, the number of
securities of the Company which they would have received had their Series B Preferred Stock been converted into Common Stock on the date of such event and had thereafter, during the period from the date of such event to and including the Conversion
Date, retained such securities (together with any distributions payable thereon during such period), giving application to all adjustments called for during such period under this Section 5(e)(iii) with respect to the rights of the holders of the
Series B Preferred Stock; provided, however , that if such record date shall have been fixed and such dividend is not fully paid or if such distribution is not fully made on the date fixed therefor, the Conversion Price shall be adjusted
pursuant to this paragraph as of the time of actual payment of such dividends or distributions, and provided further, however, that no such adjustment shall be made if the holders of Series B Preferred Stock simultaneously receive (i) a
dividend or other distribution of shares of Common Stock in a number equal to the number of shares of Common Stock as they would have received if all outstanding shares of Series B Preferred Stock had been converted into Common Stock on the date of
such event or (ii) a dividend or other distribution of shares of Series B Preferred Stock which are convertible, as of the date of such event, into such number of shares of Common Stock as is equal to the number of additional shares of Common Stock
being issued with respect to each share of Common Stock in such dividend or distribution.

          (iv) Adjustments for Reclassification, Exchange or Substitution . If the Common Stock issuable upon conversion of the Series B Preferred Stock at any time or from time to time after the Effective Date shall be
changed to the same or different number of shares of any class or classes of stock, whether by reclassification, exchange, substitution or otherwise (other than by way of a stock split or combination of shares or stock dividends provided for in
Sections 5(e)(i), (ii) and (iii), or a reorganization, merger, consolidation, or sale of assets provided for in Section 5(e)(v)), then, and in each event, an appropriate revision to the Conversion Price shall be made and provisions shall be made (by
adjustments of the Conversion Price or otherwise) so that the holder of each share of Series B Preferred Stock shall have the right thereafter to convert such share of Series B Preferred Stock into the kind and amount of shares of stock and other
securities receivable upon reclassification, exchange, substitution or other change, by holders of the number of shares of Common Stock into which such share of Series B Preferred Stock might

have been converted immediately prior to such reclassification, exchange, substitution or other change, all subject to further adjustment as provided herein.

          (v) Adjustments for Reorganization, Merger, Consolidation or Sales of Assets . If at any time or from time to time after the Effective Date there shall be a capital reorganization of the Company (other than by
way of a stock split or combination of shares or stock dividends or distributions provided for in Section 5(e)(i), (ii) and (iii), or a reclassification, exchange or substitution of shares provided for in Section 5(e)(iv)), or a merger or
consolidation of the Company with or into another corporation where the holders of outstanding voting securities prior to such merger or consolidation do not own over 50% of the outstanding voting securities of the merged or consolidated entity,
immediately after such merger or consolidation, or the sale of all or substantially all of the Company’s properties or assets to any other person (an “Organic Change”), then as a part of such Organic Change an appropriate revision to
the Conversion Price shall be made if necessary and provision shall be made if necessary (by adjustments of the Conversion Price or otherwise) so that the holder of each share of Series B Preferred Stock shall have the right thereafter to convert
such share of Series B Preferred Stock into the kind and amount of shares of stock and other securities or property of the Company or any successor corporation resulting from Organic Change. Notwithstanding the foregoing, the prohibitions set
forth above regarding an Organic Change shall not pertain to the issuance of Common Stock in connection with any future strategic acquisitions which are approved in writing by the holders of at least seventy-five percent (75%) of the then
outstanding shares of the Series B Preferred Stock, provided that at least two hundred thousand (200,000) shares of Series B Preferred Stock are then outstanding, and provided further that, such approval will not to be unreasonably
withheld. In any such case appropriate adjustment shall be made in the application of the provisions of this Section 5(e)(v) with respect to the rights of the holders of the Series B Preferred Stock after the Organic Change to the end that the
provisions of this Section 5(e)(v) (including any adjustment in the Conversion Price then in effect and the number of shares of stock or other securities deliverable upon conversion of the Series B Preferred Stock) shall be applied after that event
in as nearly an equivalent manner as may be practicable.

          (vi) Adjustments for Issuance of Additional Shares of Common Stock .

               (A) If from the Effective Date until December 28, 2008 (the “Price Protection Period”), the Company shall issue or sell any additional shares of Common Stock (otherwise than as provided in the foregoing
subsections (i) through (v) of this Section 5(e) or pursuant to Common Stock Equivalents (hereafter defined) authorized, granted or issued prior to December 28, 2007) (the “Additional Shares of Common Stock”), at a price per share
(“New Price”) less than the Conversion Price then in effect or without consideration, the Conversion Price shall be reduced concurrently with such issue to the New Price. For avoidance of doubt, the foregoing price protection shall not
apply to the grant of options to purchase up to 3,000,000 shares of Common Stock at an exercise price of $1.81 per share to the employees and directors of the Company under a stock and incentive compensation plan (the “Stock Incentive
Plan”), as contemplated by the Series A Convertible Preferred Stock Purchase Agreement dated as of September 5, 2007, by and among the Company and the purchasers of the Company’s Series A Convertible Preferred Stock.

               No adjustment of the number of shares of Common Stock shall be made under paragraph (A) of Section 5(e)(vi) upon the issuance of any Additional Shares of Common Stock which are issued pursuant to the exercise of any
warrants or other subscription or purchase rights or pursuant to the exercise of any conversion or exchange rights in any Common Stock Equivalents (as defined below); if any such adjustment shall previously have been made upon the issuance of such
warrants or other rights or upon the issuance of such Common Stock Equivalents (or upon the issuance of any warrant or other rights therefore) pursuant to Section 5(e)(vii).

          (vii) Issuance of Common Stock Equivalents . The provisions of this Section 5(e)(vii) shall apply if (a) the Company, at any time during the Price Protection Period, shall issue any securities convertible into or
exchangeable for, directly or indirectly, Common Stock (“Convertible Securities”), other than the Series A Preferred Stock, or (b) any rights or warrants or options to purchase any such Common Stock or Convertible Securities (collectively,
the “Common Stock Equivalents”) shall be issued

or sold. If the price per share for which Additional Shares of Common Stock may be issuable pursuant to any such Common Stock Equivalent shall be less than the applicable Conversion Price then in effect, or if, after any such issuance of Common
Stock Equivalents, the price per share for which Additional Shares of Common Stock may be issuable thereafter is amended or adjusted, and such price as so amended shall be less than the applicable Conversion Price in effect at the time of such
amendment or adjustment, then the applicable Conversion Price upon each such issuance or amendment shall be adjusted as provided in the first sentence of subsection (vi) of this Section 5(e). No adjustment shall be made to the Conversion Price upon
the issuance of Common Stock pursuant to the exercise, conversion or exchange of any Convertible Security or Common Stock Equivalent where an adjustment to the Conversion Price was made as a result of the issuance or purchase of any Convertible
Security or Common Stock Equivalent. This Section 5(e)(vii) shall not apply to the grant of options to purchase up to 3,000,000 shares of Common Stock at an exercise price of $1.81 per share to the employees and directors of the Company under
the Stock Incentive Plan.

          (viii) Record Date . In case the Company shall take record of the holders of its Common Stock or any other Preferred Stock for the purpose of entitling them to subscribe for or purchase Common Stock or
Convertible Securities, then the date of the issue or sale of the shares of Common Stock shall be deemed to be such record date.

     (f) No Impairment . The Company shall not, by amendment of its Articles of Incorporation or through any reorganization, transfer of assets, consolidation, merger, dissolution, issue or sale of securities or any
other voluntary action, avoid or seek to avoid the observance or performance of any of the terms to be observed or performed hereunder by the Company, but will at all times in good faith assist in the carrying out of all the provisions of this
Section 5 and in the taking of all such action as may be necessary or appropriate in order to protect the Conversion Rights of the holders of the Series B Preferred Stock against impairment. In the event a holder shall elect to convert any shares of
Series B Preferred Stock as provided herein, the Company cannot refuse conversion based on any claim that such holder or any one associated or affiliated with such holder has been engaged in any violation of law, unless (i) an order from the
Securities and Exchange Commission prohibiting such conversion or (ii) an injunction from a court, on notice, restraining and/or adjoining conversion of all or of said shares of Series B Preferred Stock shall have been issued and the Company posts a
surety bond for the benefit of such holder in an amount equal to 120% of the Original Issue Price of the Series B Preferred Stock such holder has elected to convert, which bond shall remain in effect until the completion of arbitration/litigation of
the dispute and the proceeds of which shall be payable to such holder in the event it obtains judgment in its favor.

     (g) Certificates as to Adjustments . Upon occurrence of each adjustment of readjustment of the Conversion Price or number of shares of Common Stock issuable upon conversion of the Series B Preferred Stock
pursuant to this Section 5, the Company at its expense shall promptly compute such adjustment or readjustment in accordance with the terms hereof and furnish to each holder of such Series B Preferred Stock a certificate setting forth such adjustment
and readjustment, showing in detail the facts upon which such adjustment or readjustment is based. The Company shall, upon written request of the holder of such affected Series B Preferred Stock, at any time, furnish or cause to be furnished to such
holder a like certificate setting forth such adjustments and readjustments, the Conversion Price in effect at the time, and the number of shares of Common Stock and the amount, if any, of other securities or property which at the time would be
received upon the conversion of a share of such Series B Preferred Stock. Notwithstanding the foregoing, the Company shall not be obligated to deliver a certificate unless such certificate would reflect an increase or decrease of at least one
percent of such adjusted amount.

     (h) Issue Taxes . The Company shall pay any and all issue and other taxes, excluding federal, state or local income taxes, that may be payable in respect of any issue or delivery of shares of Common Stock on
conversion of shares of Series B Preferred Stock pursuant hereto; provided, however , that the Company shall not be obligated to pay any transfer taxes resulting from any transfer requested by any holder in connection with any such
conversion.

     (i) Notices . All notices and other communications hereunder shall be in writing and shall be deemed given if delivered personally or by facsimile or three (3) business days following being mailed by

certified or registered mail, postage prepaid, return-receipt requested, addressed to the holder of record at its address appearing on the books of the Company. The Company will give written notice to each holder of Series B Preferred Stock at least
twenty (20) days prior to the date on which the Company closes its books or takes a record (I) with respect to any dividend or distribution upon the Common Stock, (II) with respect to any pro rata subscription offer to holders of Common Stock or
(III) for determining rights to vote with respect to any Organic Change, dissolution, liquidation or winding-up and in no event shall such notice be provided to such holder prior to such information being made known to the public. The Company will
also give written notice to each holder of Series B Preferred Stock at least twenty (20) days prior to the date on which any Organic Change, dissolution, liquidation or winding-up will take place and in no event shall such notice be provided to such
holder prior to such information being made known to the public.

     (j) Fractional Shares . No fractional shares of Common Stock shall be issued upon conversion of the Series B Preferred Stock. In lieu of any fractional shares to which the holder would otherwise be entitled, the
Company shall round the number of shares to be issued upon conversion up to the nearest whole number of shares.

     (k) Reservation of Common Stock . The Company shall, so long as any shares of Series B Preferred Stock are outstanding, reserve and keep available out of its authorized and unissued Common Stock, solely for the
purpose of effecting the conversion of the Series B Preferred Stock, such number of shares of Common Stock that are not issued or reserved for issuance as of the Issuance Date; provided, however , upon the Company filing the Charter Amendment
(as defined in the Purchase Agreement), the Company shall take all action necessary to at all times have authorized, and reserved for the purpose of issuance, free of preemptive rights and other similar contractual rights of stockholders, a number
of shares of Common Stock equal to one hundred fifty percent (150%) of the number of shares of Common Stock as shall from time to time be sufficient to effect the conversion of all of the shares of Series B Preferred Stock then outstanding. The
initial number of shares of Common Stock reserved for conversions of the Series B Preferred Stock and any increase in the number of shares so reserved shall be allocated pro rata among the holders of the Series B Preferred Stock based on the number
of shares of Series B Preferred Stock held by each holder of record at the time of issuance of the Series B Preferred Stock or increase in the number of reserved shares, as the case may be. In the event a holder shall sell or otherwise transfer any
of such holder’s shares of Series B Preferred Stock; each transferee shall be allocated a pro rata portion of the number of reserved shares of Common Stock reserved for such transferor.

     (l) Retirement of Series B Preferred Stock . Conversion of Series B Preferred Stock shall be deemed to have been effected on the Conversion Date. Upon conversion of only a portion of the number of shares of
Series B Preferred Stock represented by a certificate surrendered for conversion, the Company shall issue and deliver to such holder at the expense of the Company, a new certificate covering the number of shares of Series B Preferred Stock
representing the unconverted portion of the certificate so surrendered as required by Section 5(b)(ii).

     (m) Regulatory Compliance . If any shares of Common Stock to be reserved for the purpose of conversion of Series B Preferred Stock require registration or listing with or approval of any governmental authority,
stock exchange or other regulatory body under any federal or state law or regulation or otherwise before such shares may be validly issued or delivered upon conversion, the Company shall, at its sole cost and expense, in good faith and as
expeditiously as possible, endeavor to secure such registration, listing or approval, as the case may be.

6. No Preemptive Rights . Except as provided in Section 5 hereof and in the Purchase Agreement, no holder of the Series B Preferred Stock shall be entitled to rights to subscribe for, purchase or receive any part of any new or additional
shares of any class, whether now or hereinafter authorized, or of bonds or debentures, or other evidences of indebtedness convertible into or exchangeable for shares of any class, but all such new or additional shares of any class, or any bond,
debentures or other evidences of indebtedness convertible into or exchangeable for shares, may be issued and disposed of by the Board of Directors on such terms and for such consideration (to the extent permitted by law), and to such person or
persons as the Board of Directors in their absolute discretion may deem advisable.

7. Conversion Restriction . Notwithstanding anything to the contrary set forth in Section 5 of this Certificate of Designation, at no time may a holder of shares of Series B Preferred Stock convert shares of the Series B Preferred Stock if
the number of shares of Common Stock to be issued pursuant to such conversion would cause the number of shares of Common Stock owned by such holder and its affiliates at such time to exceed, when aggregated with all other shares of Common Stock
owned by such holder and its affiliates at such time, the number of shares of Common Stock which would result in such holder and its affiliates beneficially owning (as determined in accordance with Section 13(d) of the Securities Exchange Act of
1934, as amended, and the rules thereunder) in excess of 9.9% of the then issued and outstanding shares of Common Stock outstanding at such time; provided, however , that upon a holder of Series B Preferred Stock providing the Company with
sixty-one (61) days notice (pursuant to Section 5(i) hereof) (the “Waiver Notice”) that such holder would like to waive Section 7 of this Certificate of Designation with regard to any or all shares of Common Stock issuable upon conversion
of Series B Preferred Stock, this Section 7 shall be of no force or effect with regard to those shares of Series B Preferred Stock referenced in the Waiver Notice.

8. Vote to Change the Terms of or Issue Preferred Stock . The affirmative vote at a meeting duly called for such purpose or the written consent without a meeting, of the holders of not less than seventy-five percent (75%) of the then
outstanding shares of Series B Preferred Stock; provided, however, that this provision is no longer effective once shares of Preferred Stock outstanding shall equal less than two hundred thousand (200,000) (in addition to any other corporate
approvals then required to effect such action), shall be required (a) for any change to this Certificate of Designation or the Company’s Articles of Incorporation which would amend, alter, change or repeal any of the powers, designations,
preferences and rights of the Series B Preferred Stock or (b) for the issuance of shares of Series B Preferred Stock other than pursuant to the Purchase Agreement.

9. Lost or Stolen Certificates . Upon receipt by the Company of evidence satisfactory to the Company of the loss, theft, destruction or mutilation of any Preferred Stock Certificates representing the shares of Series B Preferred Stock, and,
in the case of loss, theft or destruction, of any indemnification undertaking by the holder to the Company that is reasonably acceptable to the Company and, in the case of mutilation; upon surrender and cancellation of the Preferred Stock
Certificate(s), the Company shall execute and deliver new preferred stock certificate(s) of like tenor and date, provided, however , that the Company shall not be obligated to re-issue Preferred Stock Certificates if the holder
contemporaneously requests the Company to convert such shares of Series B Preferred Stock into Common Stock.

10. Remedies, Characterizations, Other Obligations, Breaches and Injunctive Relief . The remedies provided in this Certificate of Designation shall be cumulative and in addition to all other remedies available under this Certificate of
Designation, at law or in equity (including a decree of specific performance and/or other injunctive relief). No remedy contained herein shall be deemed a waiver of compliance with the provisions giving rise to such remedy and nothing herein shall
limit a holder’s right to pursue actual damages for any failure by the Company to comply with the terms of this Certificate of Designation. Amounts set forth or provided for herein with respect to payments, conversion and the like (and the
computation thereof) shall be the amounts to be received by the holder thereof and shall not, except as expressly provided herein, be subject to any other obligation of the Company (or the performance thereof). The Company acknowledges that a breach
by it of its obligations hereunder will cause irreparable harm to the holders of the Series B Preferred Stock and that the remedy at law for any such breach may be inadequate. The Company therefore agrees that, in the event of any such breach or
threatened breach, the holders of the Series B Preferred Stock shall be entitled, in addition to all other available remedies, to an injunction restraining any breach, without the necessity of showing economic loss and without any bond or other
security being required.

11. Specific Shall Not Limit General; Construction . No specific provision contained in this Certificate of Designation shall limit or modify any more general provision contained herein. This Certificate of Designation shall be deemed to be
jointly drafted by the Company and all initial purchasers of the Series B Preferred Stock and shall not he construed against any person as the drafter hereof.

12. Failure or Indulgence Not Waiver . No failure or delay on the part of a holder of Series B Preferred Stock in the exercise of any power, right or privilege hereunder shall operate as a waiver thereof, nor shall any single or partial
exercise of any such power, right or privilege preclude other or further exercise thereof or of any other right, power or privilege.

     IN WITNESS WHEREOF, the undersigned has executed and subscribed this Certificate and does affirm the foregoing as true this 18th day of August, 2008.

	 	
      MEDPRO SAFETY PRODUCTS, INC.

      

        By: /s/ W. Craig Turner

      
Name: W. Craig Turner

      
Title: Chairman of the Board and Chief Executive OfficerExhibit 4.10

OMNIBUS AMENDMENT

  TO THE SERIES A, SERIES B AND SERIES C 

   WARRANTS TO PURCHASE SHARES OF COMMON STOCK 

  OF MEDPRO SAFETY PRODUCTS, INC. 

     Amendment (this “Amendment”), dated as of August 18, 2008, to (1) the Series A Warrant to Purchase 5,129,407 Shares of Common Stock (No. W-A-07-100), dated December 28, 2007, (2) the Series A Warrant to
Purchase 1,025,881 Shares of Common Stock (No. W-A-07-101), dated December 28, 2007, (3) the Series B Warrant to Purchase 5,129,407 Shares of Common Stock (No. W-B-07-100), dated December 28, 2007, (4) the Series B Warrant to Purchase 1,025,881
Shares of Common Stock (No. W-B-07-101), dated December 28, 2007, and (5) the Series C Warrant to Purchase 5,975,116 Shares of Common Stock (No. W-C-07-100), dated December 28, 2007 (all of them, the “Warrants”), each issued by
MedPro Safety Products, Inc. (the “Company”) to Vision Opportunity Master Fund, Ltd. (“Vision”). Capitalized terms used but not defined herein have the meanings given thereto in the Warrants.

     WHEREAS, the parties hereto desire to effect certain amendments to the Warrants as herein set forth;

     NOW, THEREFORE, in consideration of the mutual promises herein contained and other good and valuable consideration, the receipt of which hereby is acknowledged, the parties agree to amend the Warrants as follows:

     1. Amendments. Section 7 of each of the Warrants is hereby amended and restated in its entirety to read as follows:

          “7. Ownership Cap and Exercise Restriction. Notwithstanding anything to the contrary set forth in this Warrant, at no time may a Holder of this Warrant exercise this Warrant if the number of shares of Common
Stock to be issued pursuant to such exercise would exceed, when aggregated with all other shares of Common Stock owned by such Holder and its affiliates at such time, the number of shares of Common Stock which would result in such Holder and its
affiliates beneficially owning (as determined in accordance with Section 13(d) of the Exchange Act and the rules thereunder) in excess of 9.9% of the then issued and outstanding shares of Common Stock; provided, however, that upon a holder of this
Warrant providing the Issuer with sixty-one (61) days notice (pursuant to Section 13 hereof) (the "Waiver Notice") that such Holder would like to waive this Section 7 with regard to any or all shares of Common Stock issuable upon exercise of this
Warrant, this Section 7 will be of no force or effect with regard to all or a portion of the Warrant referenced in the Waiver Notice; provided, further, that during the sixty-one (61) day period prior to the expiration of the Term of this Warrant
the Holder may waive this Section 7 upon providing the Waiver Notice at any time during such sixty-one (61) day period, provided, further, that any Waiver Notice during the sixty-one (61) day period prior to the expiration of the Term will not be
effective until the last day of the Term.”

     2. Confirmation of Warrants. Except as herein expressly amended, the Warrants shall remain in full force and effect each in accordance with its terms.

     3. Successors. This Amendment will inure to the benefit of and be binding upon the parties hereto and their respective successors and assigns referred to in Section 16 of the Warrants, and no other person will
have any right or obligation hereunder.

     4. Governing Law; Jurisdiction. This Amendment shall be governed by and construed in accordance with the internal laws of the State of New York, without giving effect to any of the conflicts of law principles
which would result in the application of the substantive law of another jurisdiction. This Amendment shall not be interpreted or construed with any presumption against the party causing this Amendment to be drafted. The Company and Vision agree that
venue for any dispute arising under this Amendment will lie exclusively in the state or federal courts located in New York County, New York, and the parties irrevocably waive any right to raise forum non conveniens or any other argument that
New York is not the proper venue. The Company and Vision irrevocably consent to personal jurisdiction in the state and federal courts of the state of New York. The Company and Vision consent to process being served in any such suit, action or
proceeding by mailing a copy thereof to such party at the address in effect for notices to it under this Amendment and agrees that such service shall constitute good and sufficient service of process and notice thereof. Nothing in this Section 4
shall affect or limit any right to serve process in any other manner permitted by law. The Company and Vision hereby agree that the prevailing party in any suit, action or proceeding arising out of or relating to this Amendment, shall be entitled to
reimbursement for reasonable legal fees from the non-prevailing party. The parties hereby waive all rights to a trial by jury.

     5. Counterparts. This Amendment may be executed in counterparts, each of which shall be deemed an original but all of which together shall constitute one and the same instrument.

[remainder of page left intentionally blank]

     IN WITNESS WHEREOF, the parties hereto have duly executed this Amendment as of the date so indicated in the preamble hereof.

MEDPRO SAFETY PRODUCTS, INC.

	
      By:  

        	
      /s/ W. Craig Turner  

        W. Craig Turner 

         Chief Executive Officer 

        

VISION OPPORTUNITY MASTER FUND LTD.

	
      By:  

        	
      /s/ Adam Benowitz 

        Adam Benowitz 

         Director

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