`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`NEW WORLD MEDICAL, INC.,
`Petitioner
`v.
`
`MICROSURGICAL TECHNOLOGY, INC.,
`Patent Owner
`
`Case No. IPR2020-01573
`
`U.S. Patent No. 9,107,729
`
`REPLY DECLARATION OF DR. PETER NETLAND
`
`Petitioner - New World Medical
`Ex. 1030, p. 1 of 19
`New World Medical, Inc. v. MicroSurgical Tech., Inc., IPR2020-01573
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`
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`TABLE OF CONTENTS
`
`I.
`II.
`
`INTRODUCTION ........................................................................................... 1
`QUINTANA DISCLOSES CUTTING A “STRIP OF TISSUE”
`FROM THE TRABECULAR MESHWORK ................................................. 2
`A.
`Development of Experimental Protocol ................................................ 5
`B.
`Experimental Protocol .........................................................................10
`C.
`Experimental Results ...........................................................................12
`III. CONCLUSION ..............................................................................................16
`
`ii
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`Petitioner - New World Medical
`Ex. 1030, p. 2 of 19
`New World Medical, Inc. v. MicroSurgical Tech., Inc., IPR2020-01573
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`I.
`
`INTRODUCTION
`1.
`My name is Dr. Peter Netland, MD, PhD, and I have been retained by
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`counsel for New World Medical, Inc. (“New World Medical”) as an expert witness
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`in the above-captioned proceeding. I am the Dr. Peter Netland, MD, PhD who
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`previously submitted a declaration in this proceeding as Exhibit 1003 (“Opening
`
`Declaration”).
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`2.
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`I have been asked to provide this Reply Declaration regarding the
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`validity of claims 1-10 of U.S. Patent No. 9,107,729 (“the ‘729 patent”) (Ex.1001).
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`Specifically, I have been asked to respond to issues raised by the Patent Owner’s
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`Response (Paper 29) (“Response”) and the accompanying Declaration of Garry P.
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`Condon, M.D. in Support of Patent Owner’s Response (Ex.2019) (“Condon
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`Declaration”) and Sworn Affidavit of Manuel Quintana, M.D. (Ex.2020)
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`(“Quintana Affidavit”) filed in this proceeding.
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`3.
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`My opinions are based on my years of education, research, and
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`experience, which I summarized in my Opening Declaration (Ex.1003), as well as
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`my investigation and study of relevant materials. In addition to the information I
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`identified in my Opening Declaration, I have also considered the Board’s
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`Institution Decision (Paper 22) (“Institution Decision”), the Patent Owner’s
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`Response, the Condon Declaration, the Quintana Affidavit, and any other cited
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`reference in this Reply Declaration.
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`1
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`Petitioner - New World Medical
`Ex. 1030, p. 3 of 19
`New World Medical, Inc. v. MicroSurgical Tech., Inc., IPR2020-01573
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`4.
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`I may rely upon these materials, my knowledge and experience,
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`and/or additional materials to rebut arguments raised by the Patent Owner
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`MicroSurgical Technologies, Inc. (“MST”), Dr. Condon, and/or Dr. Quintana.
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`Further, I may also consider additional documents and information in forming any
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`necessary opinions, including documents that may not yet have been provided to
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`me.
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`5.
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`This declaration and my Opening Declaration represent only those
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`opinions I have formed to date. I reserve the right to revise, supplement, and/or
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`amend my opinions stated herein based on new information and on my continuing
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`analysis of the materials produced in this proceeding.
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`6.
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`I am being compensated on a per hour basis for my time spent
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`working on issues in this case at the rate of $500 per hour. My compensation does
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`not depend on the outcome of this matter or the opinions I express.
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`II. QUINTANA DISCLOSES CUTTING A “STRIP OF TISSUE” FROM
`THE TRABECULAR MESHWORK
`7.
`As explained in my Opening Declaration, it is my opinion that the
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`surgical procedure described in the Quintana reference (Ex.1004) (“Quintana”)
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`would without question have resulted in cutting “strips of tissue” from the TM.
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`Ex.1003 (Opening Declaration), ¶98. This is confirmed by Quintana’s explicit
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`disclosures, including but not limited to Quintana statements that the procedure
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`“achieves a section of the trabecular meshwork,” “the TM is stripped slowly,
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`Petitioner - New World Medical
`Ex. 1030, p. 4 of 19
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`gently and easily from the canal’s lumen towards the anterior chamber as the
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`needle progresses in the angle,” “[f]urther studies are necessary to disclose the ‘in
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`vivo’ behavior of the sectioned trabecular meshwork,” and Figure 2 and caption
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`that states “[t]he tip of the needle stripping the trabecular meshwork.” Id., ¶¶ 136-
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`37, 193-94; Ex.1004 (Quintana), 3-5, 8. I understand that Patent Owner, Dr.
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`Condon, and Dr. Quintana address certain opinions I expressed in my Opening
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`Declaration regarding the Quintana reference (Ex.1004) and offer contrary
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`arguments regarding whether the Quintana reference (Ex.1004) discloses cutting a
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`“strip of tissue” from the TM.
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`8.
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`In particular, I understand Patent Owner and Dr. Condon assert that
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`the surgical procedure disclosed in the Quintana reference (Ex.1004) does not
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`involve the removal of TM. Response, 13; Condon Declaration, ¶30. I further
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`understand that Dr. Condon asserts that my Opening Declaration “seizes on the
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`words ‘section’ and ‘stripping’ used in Quintana in an attempt to rationalize that
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`TM must have been removed even though Quintana never actually says so.”
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`Condon Declaration, ¶31. I understand Dr. Condon asserts that “a POSA would
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`have understood Quintana’s reference to ‘section’ . . . to mean incising or opening
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`the TM, as opposed to creating or removing a strip of TM.” Condon Declaration,
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`¶32. I further understand Dr. Condon asserts that “a POSA would have understood
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`Quintana’s reference to ‘stripped’ and ‘stripping’ . . . to mean simply cutting or
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`3
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`Petitioner - New World Medical
`Ex. 1030, p. 5 of 19
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`tearing the TM to move it away from the lumen of Schlemm’s Canal while
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`avoiding injuring the external wall of Schlemm’s Canal, which was Quintana’s key
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`concern.” Condon Declaration, ¶38.
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`9.
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`I also understand Dr. Quintana has submitted an Affidavit discussing
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`the Quintana reference (Ex.1004). I understand the Quintana Affidavit purports to
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`interpret the words “section,” “sectioned,” “stripping,” and “stripped” used in the
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`Quintana reference (Ex.1004).
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`10.
`
`I disagree with Patent Owner, Dr. Condon, and Dr. Quintana. As I
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`indicated in my Opening Declaration, it is my opinion that Quintana’s disclosure of
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`“stripping” the trabecular meshwork to “achieve[] a section of the trabecular
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`meshwork” explicitly and unequivocally refers to excising or cutting a “strip of
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`tissue” from the trabecular meshwork as claimed in the ‘729 patent. Opening
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`Declaration, ¶¶136-37, 193-94. In my opinion, Patent Owner, Dr. Condon, and Dr.
`
`Quintana’s assertions do not reflect how a person of ordinary skill in the art
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`(“POSA”) would have interpreted the Quintana reference (Ex.1004) or what the
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`result of the surgical procedure described in the Quintana reference (Ex.1004)
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`would have been.
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`11.
`
`In response to what is, in my opinion, Patent Owner’s, Dr. Condon’s,
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`and Dr. Quintana’s apparent misinterpretation of the explicit disclosures set forth
`
`in the Quintana reference (Ex.1004), I was asked by counsel for New World
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`4
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`Petitioner - New World Medical
`Ex. 1030, p. 6 of 19
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`Medical to replicate the surgical procedure described in the Quintana reference
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`(Ex.1004) to demonstrate that the references explicit teachings (e.g., “section,”
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`“sectioned,” “stripping,” and “stripped”) refer to excising or cutting a “strip of
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`tissue” from the TM as set forth in the claims of the ‘729 patent and not merely
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`“incising” or “opening” the TM as set forth by Patent Owner and Dr. Condon.
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`12.
`
`I have described below the experimental protocol I used to replicate
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`the surgical procedure described in Quintana, a record of the experiments
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`conducted, and my observations/results.
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`Development of Experimental Protocol
`A.
`13. Based on the Quintana reference (Ex.1004), I arrived at the
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`experimental protocol described below for reproducing the surgical procedure
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`described in Quintana (Ex.1004). While I attempted to perform the experiments as
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`closely as possible to the surgical procedure described in Quintana (Ex.1004), I
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`note several differences between the surgical procedure described in the Quintana
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`reference (Ex.1004) and the experimental protocol I developed and followed. As
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`explained in detail below, I do not believe that these differences affected the
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`outcome of my experiments or the results I obtained.
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`14.
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`The surgical procedure described in the Quintana reference (Ex.1004)
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`was performed on live patients. For ethical reasons, it is not possible to replicate
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`the surgical procedure described in the Quintana reference (Ex.1004) in live
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`5
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`Petitioner - New World Medical
`Ex. 1030, p. 7 of 19
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`patients. Instead, human cadaver corneoscleral rims (“corneal rims”) acquired
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`from Lions Eye Institute in Tampa, Florida were used. A corneal rim is an excised
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`portion of the eye of a donor cadaver that is removed from the donor cadaver’s eye
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`within about 6-8 hours after death. Corneal rims are obtained by excising the
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`cornea and rim of attached sclera from the donor eye. The “rim” of attached sclera
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`is typically about 4-5 mm of scleral tissue to minimize damage to the limbus and
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`underlying structures (i.e., SC and TM). Corneal rims are commonly used and
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`well-accepted in ophthalmology for simulating and training minimally-invasive
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`glaucoma surgeries (“MIGs”) including accessing the TM and SC. Ex.1034
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`(Arora), 4. Corneal rims are simple to prepare and teach trainees the variety in
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`appearance of angle structures and tactile characteristics of SC. Id., 1. Because
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`corneal rims are obtained from human eyes, corneal rims provide the best, most
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`realistic model for replicating the surgical procedure described in the Quintana
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`reference (Ex.1004).
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`15.
`
`There are several other differences between the surgical procedure
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`described in the Quintana reference (Ex.1004) and the experimental protocol I
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`developed and followed that likewise relate to the use of corneal rims. These
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`differences are described below:
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` Fixation of Corneal Rim: While Quintana’s surgical procedure was
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`performed in live patients’ eyes that are attached to the patient’s body, a
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`6
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`Petitioner - New World Medical
`Ex. 1030, p. 8 of 19
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`corneal rim is a detached portion of tissue that needs to be fixed in order to
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`allow for experiments and training. Additionally, because the cornea tissue
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`of cadaver corneal rims often becomes cloudy and difficult, if not impossible
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`to see through, corneal rims are most commonly used by inverting the
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`corneal rim so that the inner, concave surface of the cornea (as well as the
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`angle structures including the trabecular meshwork and Schlemm’s Canal)
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`faces upwards toward the surgeon, allowing the trainee/surgeon to practice
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`MIGs techniques independent of the tissue’s corneal clarity. See Ex.1034
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`(Arora), 1-2. As such, using a tissue holder device with a clamp provided by
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`New World Medical, I clamped the corneal rim in the accepted inverted
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`fashion to the tissue holder in order to hold the corneal rim in place below an
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`operating microscope.
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` Positioning: Quintana (Ex.1004) describes positioning the surgeon “as in
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`classical goniotomy.” Ex.1004 (Quintana), 3. While I positioned myself on
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`the temporal side of the corneal rim, I did not perform the experiments in
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`patients so I did not rotate the patient’s head away or have an assistant
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`present to hold a vertical recti. Id. For the same reason, I did not have an
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`assistant present to “rotate the globe clockwise as [I introduced] the
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`trabeculotome counter-clockwise.” Id., 4. Quintana did this in order to
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`achieve a 100-120° trabeculotomy. Id. Because I used an inverted corneal
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`7
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`Petitioner - New World Medical
`Ex. 1030, p. 9 of 19
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`rim, I was able to move the needle farther through Schlemm’s Canal to
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`create a longer trabeculotomy as opposed to rotating the globe and/or
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`trabeculotome as described in Quintana (Ex.1004). I was able to create a
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`longer trabeculotomy because I did not have to work around the temple,
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`nose, or other portions of a patient and was only limited by the relevant
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`structures of the eye.
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` Approach: Quintana (Ex.1004) states “[t]he needle penetrates the anterior
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`chamber at 6 hours (right eye) or 12 hours (left eye) through the scleral side
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`of the limbus; this is in order to run parallel to Schlemm’s canal. Penetration
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`at 6 or 12 hour allows a tangential approach [] to the angle; this avoids the
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`pupillary field and the convexity of the lens.” Ex.1004 (Quintana), 4.
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`Because corneal rims are excised portions of the eye and are used in an
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`inverted fashion, it is not necessary or possible to penetrate the anterior
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`chamber of the eye in the precise manner described in the Quintana
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`reference (Ex.1004). Instead, because the corneal rim is inverted, direct
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`access to angle structures is possible from above the corneal rim, which is
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`either at the scleral side of the limbus or slightly more posterior. To
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`replicate the procedure described in the Quintana reference (Ex.1004) as
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`closely as possible, I took care to position the needle in the location that it
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`would have entered and advanced into a live patient’s eye as described in the
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`8
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`Petitioner - New World Medical
`Ex. 1030, p. 10 of 19
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`Quintana reference (Ex.1004). Additionally, while Quintana describes use
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`of a goniolens “[o]nce the needle is in the anterior chamber” in order to
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`visualize the angle, there is no need to use a goniolens to visualize the angle
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`when using an inverted corneal rim because the angle can be viewed
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`directly. While this viewing position may provide enhanced visibility of the
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`TM and SC for a less experienced surgeon, this does not change the
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`procedure, nor the results achieved.
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` Fluid: Quintana (Ex.1004) describes using a viscoelastic fluid called Healon
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`as a wetting agent, to deepen the angle during the procedure, and before
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`leaving the anterior chamber to avoid loss of aqueous and maintaining a full
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`chamber. Ex.1004 (Quintana), 4. Because there is no anterior chamber in a
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`corneal rim (the removed iris forms part of the chamber), the rims have no
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`aqueous humor in the “chamber.” As such, I injected a similar viscoelastic
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`fluid into convex portion of the corneal rims in order to eliminate the
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`“chamber loss” as well as to perform the procedure within fluid (aqueous
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`humor or viscoelastic fluid) as tissues may behave differently when in air
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`(gas) versus fluid. I also used forceps at times in order to stretch the corneal
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`rim tissue to better simulate the more firm tissue that would be in a living
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`patient’s eye. I also injected another fluid called balanced salt solution
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`(“BSS”) into the concave portion of the corneal rim to fill the eye with fluid
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`9
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`Petitioner - New World Medical
`Ex. 1030, p. 11 of 19
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`to better simulate the eye of a live patient. Last, in some instances, I injected
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`dye into the angle area of the corneal rims to make it easier to see any tissue
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`that was excised from the angle.
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`B.
`16.
`
`Experimental Protocol
`I developed and followed the experimental protocol described below
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`for reproducing the surgical procedure described in Quintana (Ex.1004).
`
`Materials:
`
` Microscope (Zeiss Lumera 700)
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` Corneal rims (Lions Eye Institute, Tampa, FL)
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` Tissue holder device with clamp (New World Medical)
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` Needles (Exel Int. Hypodermic Needle Model: 27Gx1/2”)
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` Syringe
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` Clamp
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` Forceps
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` Protractor
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` Viscoelastic
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` BSS
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` Dye (Trypan Blue and Lissamine Green)
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`10
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`Petitioner - New World Medical
`Ex. 1030, p. 12 of 19
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`Procedure:
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` Affix corneal rim to tissue holder device in inverted fashion with
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`concave side up by sliding corneal rim’s edge under clamp.
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` Place tissue holder and corneal rim in viewing area of microscope,
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`affix tissue holder to surface, and focus microscope at appropriate
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`magnification.
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` Remove needle from packaging and insert into syringe. Using clamp,
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`bend needle tip approximately 30° and measure angle to ensure
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`accuracy using protractor.1
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` Inject viscoelastic into angle of corneal rim. Inject BSS into concave
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`portion of corneal rim to fill eye with fluid.
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` Position needle tip at 6 clock hours overtop corneal rim at shallow
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`angle both the plane of SC (plane A) to simulate insertion at Scleral
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`side of limbus as well as a shallow angle to the plane formed at the
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`1 I understand that Patent Owner and Dr. Condon assert that the Quintana reference
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`(Ex.1004) does not indicate precisely where the bend is made in Quintana’s needle.
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`I therefore performed experiments with the bend in two different locations: (1) in
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`the shaft proximal to the bevel (Experiments 1-3); and (2) within the bevel
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`(Experiment 4).
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`11
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`Petitioner - New World Medical
`Ex. 1030, p. 13 of 19
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`tangent of the outer wall of SC (plane B) (perpendicular to plane A) to
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`achieve a tangential approach to the TM.
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` Advance needle tip within concave portion of corneal to simulate
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`penetrating into the anterior chamber at the scleral side of the limbus
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`(penetration point).
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` Advance needle tip toward trabecular meshwork, taking care to
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`maintain shallow angle and entry at 6 clock hours.
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` Incise and penetrate the trabecular meshwork with the tip of the
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`needle.
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` With concavity of the tip facing surgeon, progressively advance the
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`needle in the angle.
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` With tip of needle within the trabecular meshwork, remove a strip of
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`the trabecular meshwork slowly, gently, and easily from the canal’s
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`lumen toward the anterior chamber as the needle progress in the angle.
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`If necessary, stretch corneal rim tissues to better simulate tissue in live
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`patient’s eye.
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`C.
`17.
`
`Experimental Results
`The above experimental protocol was performed on four (4) corneal
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`rims obtained from Lions Eye Institute (Experiments 1-4).
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`12
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`Petitioner - New World Medical
`Ex. 1030, p. 14 of 19
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`18.
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`Experiment 1 on the first corneal rim was performed using an older
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`model microscope that had no video or photo capture capability. While I was not
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`able to document my results, after performing the protocol described above, I
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`observed what in my opinion were strips of trabecular meshwork tissue.
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`19.
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`Testing on the remaining three corneal rims (Experiments 2-4) was
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`performed using the Zeiss Lumera 700 microscope with video capture capability. I
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`am submitting videos documenting portions of my experiments along with this
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`Reply Declaration (Exhibits 1031-1033). I have also taken screen captures from
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`these videos and have provided several annotated images below.
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`Figure 1
`The above image (Figure 1) is a screen capture from a video
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`20.
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`submitted as Exhibit 1031 of Experiment 2. In this experiment, I bent the needle in
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`the shaft proximal to the bevel.
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`13
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`Petitioner - New World Medical
`Ex. 1030, p. 15 of 19
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`Figure 2
`The above image (Figure 2) is a screen capture from a video
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`21.
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`submitted as Exhibit 1032 of Experiment 3. In this experiment, I bent the needle in
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`the shaft just above the bevel. The trabecular meshwork tissue has a green color
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`because I used Lissamine green dye to make the tissue easier to see on camera.
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`14
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`Petitioner - New World Medical
`Ex. 1030, p. 16 of 19
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`Figure 3
`The above image (Figure 3) is a screen capture from a video
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`22.
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`submitted as Exhibit 1033 of Experiment 4. In this experiment, I bent the needle
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`within the bevel. The trabecular meshwork tissue has a green color because I used
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`Lissamine green dye to make the tissue easier to see on camera. In Figure 3, the
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`needle is being held in the microscopic view to show the strip of tissue and bend in
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`the needle, not to show the surgical approach of the needle.
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`23. As is shown in the videos and annotated images above, by performing
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`the experimental protocol described above, I was able to obtain what in my opinion
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`were strips of trabecular meshwork tissue.
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`15
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`Petitioner - New World Medical
`Ex. 1030, p. 17 of 19
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`III. CONCLUSION
`24.
`In summary, following the surgical procedure set forth in the
`
`Quintana reference (Ex.1004), I performed experiments on several corneal rims to
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`demonstrate that, despite Patent Owner’s, Dr. Condon’s, and Dr. Quintana’s
`
`assertions, the explicit statements in the Quintana reference (Ex.1004) (e.g.,
`
`“section,” “sectioned,” “stripping,” and “stripped”) demonstrates that the
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`procedure of the Quintana reference yields a “strip of tissue” was cut from the
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`trabecular meshwork.
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`25.
`
`The results described above show that performing the surgical
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`procedure described in the Quintana reference (Ex.1004) results, in most instances,
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`in obtaining strips of trabecular meshwork tissue.
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`26.
`
`These results confirm my opinion that the surgical procedure
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`described in the Quintana reference (Ex.1004) would have result in cutting “strips
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`of tissue” from the trabecular meshwork, as well as my opinion that Patent Owner,
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`Dr. Condon, and Dr. Quintana misinterpreted the disclosures of the Quintana
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`reference (Ex.1004).
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`16
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`Petitioner - New World Medical
`Ex. 1030, p. 18 of 19
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`27.
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`I declare under penalty of perjury that the foregoing is true and
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`correct. I declare that all statements made herein of my knowledge are true, and
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`that all statements made on information and belief are believed to be true, and that
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`these statements were made with the knowledge that willful false statements and
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`the like so made are punishable by fine or imprisonment, or both, under Section
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`1001 of Title 18 of the United States Code. Executed this 31st day of August,
`
`2021.
`
`Digitally signed by Peter A.
`Peter A. Netland,
`Netland, MD, PhD
`Date: 2021.08.31 17:12:36
`MD, PhD
`-04'00'
`
`Dr. Peter Netland, MD, PhD
`
`17
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`Petitioner - New World Medical
`Ex. 1030, p. 19 of 19
`New World Medical, Inc. v. MicroSurgical Tech., Inc., IPR2020-01573
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