QXMedical, LLC v. Vascular Solutions, LLC

CourtDistrict Court, D. Minnesota
DecidedOctober 2, 2019
Docket0:17-cv-01969
StatusUnknown

This text of QXMedical, LLC v. Vascular Solutions, LLC (QXMedical, LLC v. Vascular Solutions, LLC) is published on Counsel Stack Legal Research, covering District Court, D. Minnesota primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
QXMedical, LLC v. Vascular Solutions, LLC, (mnd 2019).

Opinion

UNITED STATES DISTRICT COURT DISTRICT OF MINNESOTA

QXMÉDICAL, LLC, Case No. 17‐CV‐1969 (PJS/TNL)

Plaintiff, v. ORDER VASCULAR SOLUTIONS, LLC; TELEFLEX INNOVATIONS S.À.R.L.; and ARROW INTERNATIONAL, INC., Defendants. Courtland C. Merrill and Philip J. Kaplan, ANTHONY OSTLUND BAER & LOUWAGIE P.A., for plaintiff. J. Thomas Vitt, Emily Justine Tait, Patrick J. O’Rear, and Sanjiv Prakash Laud, JONES DAY; Kenneth E. Levitt, DORSEY & WHITNEY, for defendants. This lawsuit involves six patents—U.S. Patent Nos. 8,048,032 (the “‘032 patent”), 8,142,413 (the “‘413 patent”), RE45,380 (the “RE’380 patent”), RE45,760 (the “RE’760 patent”), RE45,776 (the “RE’776 patent”), and RE46,116 (the “RE’116 patent”). All six patents descend from a common patent application and share a common specification and common drawings. The patents are owned by defendant Teleflex Innovations

S.à.r.l., whose parent corporation acquired defendant Vascular Solutions, LLC, in February 2017. A third defendant, Arrow International, Inc., has the right to sell products practicing the patents. For convenience, the Court will refer to the defendants collectively as “Vascular Solutions.”

In April 2017, Vascular Solutions accused plaintiff QXMédical, LLC of patent infringement. In response, QXMédical brought this action, seeking a declaration that its Boosting Catheter does not infringe any of Vascular Solutions’s patents and that

Vascular Solutions’s patents are invalid. Vascular Solutions counterclaimed, seeking judgment against QXMédical for infringement. On October 30, 2018, the Court issued an order construing certain terms of the patents in suit pursuant to Markman v. Westview Instruments, Inc., 517 U.S. 370, 390‐91

(1996). See QXMédical, LLC v. Vascular Solutions, No. 17‐CV‐1969 (PJS/TNL), 2018 WL 5617568, at *1 (D. Minn. Oct. 30, 2018). After the close of discovery, the parties filed cross‐motions for summary judgment. For the reasons that follow, the Court mostly

grants Vascular Solutions’s motion, and mostly denies QXMédical’s motion. I. BACKGROUND The Court will assume familiarity with its Markman order. Very briefly, the patents in suit relate to a medical device known as a “guide extension catheter.” A

guide extension catheter is used by a heart surgeon to deliver a balloon or stent into a coronary artery that has been narrowed by a buildup of plaque. The surgeon pushes the guide extension catheter though a larger catheter (known as the “guide catheter”),

-2- and then pushes the balloon or stent through the guide extension catheter and into the

coronary artery. The GuideLiner catheter that Vascular Solutions manufactures is depicted in the following diagram:

is = Whit tioning marke \Z le) & 105% (double) □ oulewann Radiopaque val to assist in placement through the guide : : Rapid exchange collar transition

ECF No. 125-22 at 32.’ The GuideLiner catheter manufactured by Vascular Solutions well as the Boosting Catheter manufactured by QXMéedical—are composed of three main parts: (1) a pushrod, (2) a side opening, and (3) a flexible tip. In this diagram, the pushrod is on the left, the side opening is in the middle (within the blue section), and the flexible tip is on the right (in yellow).

‘When citing documents by ECF number, the Court cites the page number generated by the electronic docketing system rather than the document's internal pagination. -3-

II. DISCUSSION A. Standard of Review

Summary judgment is warranted “if the movant shows that there is no genuine dispute as to any material fact and the movant is entitled to judgment as a matter of law.” Fed. R. Civ. P. 56(a). A dispute over a fact is “material” only if its resolution

might affect the outcome of the suit under the governing substantive law. Anderson v. Liberty Lobby, Inc., 477 U.S. 242, 248 (1986). A dispute over a fact is “genuine” only if “the evidence is such that a reasonable jury could return a verdict for the nonmoving party.” Id. When considering a summary‐judgment motion, the Court “must view the

evidence and the inferences that may be reasonably drawn from the evidence in the light most favorable to the non‐moving party.” Winthrop Res. Corp. v. Eaton Hydraulics, Inc., 361 F.3d 465, 468 (8th Cir. 2004).

B. Validity—Indefiniteness of “Substantially Rigid” All of the claims asserted against QXMédical disclose a “substantially rigid” segment, which is informally referred to as the “pushrod.” QXMédical argues that these claims are fatally indefinite because of the way that the Court defined

“substantially rigid” in its Markman order. Both parties have moved for summary judgment on the issue.

-4- “A claim is invalid for indefiniteness if its language, when read in light of the specification and the prosecution history, ‘fail[s] to inform, with reasonable certainty,

those skilled in the art about the scope of the invention.’” Biosig Instruments, Inc. v. Nautilus, Inc., 783 F.3d 1374, 1377 (Fed. Cir. 2015) (citation omitted). Because a patent is presumed to be valid, an accused infringer must prove indefiniteness by clear and

convincing evidence. See Microsoft Corp. v. i4i Ltd. P’ship, 564 U.S. 91, 95 (2011). Summary judgment may be granted on the issue of indefiniteness when there is no genuine dispute as to any material fact. See Akzo Nobel Coatings, Inc. v. Dow Chem. Co., 811 F.3d 1334, 1336 (Fed. Cir. 2016) (affirming a district court’s grant of summary

judgment that a patent is not invalid for indefiniteness). In its Markman order, the Court adopted a functional definition of “substantially rigid,” construing the term to mean “rigid enough to allow the device to be advanced

within the guide catheter.” QXMédical, 2018 WL 5617568, at *5. QXMédical does not actually argue that the term (as defined by the Court) is indefinite. In other words, QXMédical does not argue that a person of ordinarily skill in the art would have any difficulty determining whether a particular portion of a guide extension catheter is rigid

enough to push a flexible tubular structure through a guide catheter. Rather, QXMédical argues that the problem with the Court’s definition is that a portion of a guide extension catheter could be both “substantially rigid” and “flexible.”

-5- Specifically, QXMédical contends that the material that comprises the tip portion (which must be “flexible”) might be “rigid enough to allow the device to be advanced within

the guide catheter” (and thus also “substantially rigid”). Likewise, the pushrod (which must be “substantially rigid”) must be able to bend enough to navigate the vascular system of a human being (and thus must also be “flexible”). Under the Court’s

definition, says QXMédical, a person of ordinary skill would be unable to distinguish the “substantially rigid” portion of the device from the “flexible” portion. The problem with QXMédical’s argument is that its premise is flawed: Nothing in any of the patents in suit says that “substantially rigid” and “flexible” are mutually

exclusive. In other words, nothing in any of the patents says that a segment of the device cannot be both “substantially rigid” and “flexible.” Instead, the claims that disclose a “flexible tip” portion simply require that the substantially‐rigid pushrod be

“more rigid” than the flexible tip. See, e.g., ‘032 at 10:38‐40 (emphasis added). This is a comparative limitation—a limitation that would be superfluous if “substantially rigid” and “flexible” were mutually exclusive categories.

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QXMedical, LLC v. Vascular Solutions, LLC, Counsel Stack Legal Research, https://law.counselstack.com/opinion/qxmedical-llc-v-vascular-solutions-llc-mnd-2019.