Karl Storz Endoscopy-America Inc v. STERIS Instrument Management Services, Inc.

CourtDistrict Court, N.D. Alabama
DecidedMay 19, 2022
Docket2:12-cv-02716
StatusUnknown

This text of Karl Storz Endoscopy-America Inc v. STERIS Instrument Management Services, Inc. (Karl Storz Endoscopy-America Inc v. STERIS Instrument Management Services, Inc.) is published on Counsel Stack Legal Research, covering District Court, N.D. Alabama primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Karl Storz Endoscopy-America Inc v. STERIS Instrument Management Services, Inc., (N.D. Ala. 2022).

Opinion

UNITED STATES DISTRICT COURT FOR THE NORTHERN DISTRICT OF ALABAMA SOUTHERN DIVISION

KARL STORZ ENDOSCOPY- } AMERICA, INC., } } Plaintiff, } } v. } Case No.: 2:12-CV-02716-RDP } STERIS INSTRUMENT } MANAGEMENT SERVICES, INC., } } Defendant. }

MEMORANDUM OPINION This patent infringement case is before the court on six motions: Plaintiff’s Motion for Partial Summary Judgment as to certain infringement claims and patent validity (Doc. # 172); Defendant’s Motion for Summary Judgment based on the affirmative defense of repair (Doc. # 174); the parties’ Daubert motions to exclude expert witness testimony at trial (Docs. # 173, 175); and Plaintiff’s Motion for Sanctions based on alleged spoliation of evidence (Doc. # 171). The Motions have been fully briefed (Docs. # 176, 177, 178, 179, 180, 190, 191, 192, 196, 197, 202- 1, 202-2, 212, 213, 214) and are under submission. After careful review, and for the reasons discussed below, Defendant’s Motion for Summary Judgment (Doc. # 174) is due to be granted and all other Motions (Docs. # 171, 172, 173, 175, 210) are due to be denied. I. Background1 This case concerns endoscopes. An endoscope is a tubular device used by medical professionals to see inside body cavities. (Doc. # 104 at 2). Endoscopes have various components. The outermost body of a rigid endoscope is an inflexible tubular shaft. (Doc. # 169-1 at 1, ¶ 1). The shaft houses an inner tube called the optical relay assembly. (Id. at 1, ¶¶ 1-2). The optical relay

assembly is a series of lenses and spacers arranged in a specific order. (Id. at 1, ¶ 2). The purpose of the optical relay assembly is to pass the image from one end of the endoscope to the other. (Id.). The user can look through an eyepiece attached to the proximal end of the endoscope to see the image from the distal end. (Id. at 1-2, ¶¶ 1, 6). Plaintiff Karl Storz Endoscopy-America, Inc. (“KSEA”) manufactures and services endoscopes. It owns two patents at issue in this case: U.S. Patent No. 7,530,945, entitled “Endoscope and Method for Assembling Components of an Optical System” (“the ‘945 Patent”), and U.S. Reissued Patent No. RE46,044, also entitled “Endoscope and Method for Assembling Components of an Optical System” (“the ‘044 Patent”). (Docs. # 93-1, 93-2). The ‘945 Patent is a

method patent covering a process of assembling endoscopes and the ‘044 Patent is a machine patent covering the endoscopes themselves. (See id.). The patents are substantially similar; that is, they cover the same devices and the method of assembling those devices. (See id.). Through the patents, KSEA claims right to the process of creating an endoscope with an interior tube (the optical relay assembly), which is encased in transparent shrinkable material that encloses and fixes

1 The facts set out in this opinion are gleaned from the parties’ submissions and the court’s own examination of the evidentiary record. All reasonable doubts about the facts have been resolved in favor of the nonmoving party. See Info. Sys. & Networks Corp. v. City of Atlanta, 281 F.3d 1220, 1224 (11th Cir. 2002). These are the “facts” for summary judgment purposes only. They may not be the actual facts that could be established through live testimony at trial. See Cox v. Adm’r U.S. Steel & Carnegie Pension Fund, 17 F.3d 1386, 1400 (11th Cir. 1994). the optical components (lenses and spacers) and allows for a visual check of the alignment of the optical components before assembly of the entire endoscope. (Docs. # 93-1 at 7; 93-2 at 7). Without the claimed invention, the quality check of the optical relay assembly in an endoscope is normally performed after the endoscope is completely assembled. (Id.). “If optical errors are found, it is then very expensive to correct these, and in most cases the endoscope has to

be completely dismantled.” (Id.). The invention solves this issue because “it is now possible to produce [an optical relay assembly] outside the endoscope and to check this unit visually” through the transparent shrinkable material. (Id.). The ‘945 Patent has seven claim limitations. (Doc. #93-1 at 9). Claim 1 is representative of the claimed method: 1. A method for assembling an endoscope having a tubular shaft, an optical system having several components, said components of said optical system are contained in an interior of said tubular shaft, said components of said optical systems are at least partially surrounded by a tube made of both a transparent2 and a shrunk material, said method comprising the following steps

a) introducing said components into a tube of transparent and shrinkable material to form a unit,

b) shrinking said shrinkable material of said tube for fixing the position of said components contained within said tube relative to one another,

c) checking a position of said components relative to one another through said transparent shrunk material, of said shrunk tube and

d) introducing said unit comprised of said shrunk tube and said components contained therein into said tubular shaft.

(Id.).

2 Pursuant to Markman v. Westview Instruments, Inc., 517 U.S. 370 (1996), Judge Bowdre, who previously was assigned this case, construed “transparent,” as the term is used in the patents, to mean “allowing the transmission of light such that the assembler of an endoscope can visually check the alignment of the component parts of the endoscope.” (Doc. # 112 at 2). Judge Bowdre declined to construe any other disputed terms, finding that no other terms required construction. (Id. at 3). The ‘044 Patent has 32 claim limitations. (Doc. # 93-2 at 9-11). Claim 1 is representative of the claimed device: 1. An endoscope, comprising:

A tubular shaft, having an inside face,

An optical system having several components, said components of said optical system are contained in an interior of said tubular shaft,

said components comprising at least two of the following: a lens, a spacer, a diaphragm, a prism and a filter, said components directly surrounded by a support piece made of a shrunk material, wherein

said shrunk material is a transparent material,

said support piece made of said transparent material has a shape of a tube, and

said tube containing said components of said optical system has been shrunk prior to inserting said tube into said interior of said tubular shaft, for allowing a visual check of a position of said components relative to one another, and

a gap located between an outside surface of said tube of shrunk material and said inside face of said tubular shaft.

(Id. at 9). Claims 8, 15, and 23 describe substantially similar endoscopes. (Id. at 10). Claims 2, 9, 16, and 24 limit the claimed endoscopes to those with optical components enclosed by transparent material. (Id.). In simpler terms, KSEA rigid endoscopes have a unique “tube within a tube” construction. The outer tube is the rigid body of the endoscope. The inner tube is enclosed with a transparent and shrinkable material, which the parties sometimes refer to as “shrink wrap.” The inner tube contains lenses of different diameters and prescriptions separated by spacers of different sizes. So, in the most general sense, the inner tube is a shrink-wrapped row of lenses and spacers. This inner tube can be assembled and inspected separately from the rest of the endoscope and can be removed from the endoscope as one unit. Again, the inner tube is the optical relay assembly. Defendant STERIS Instrument Management Service, Inc. (“IMS”) repairs3 endoscopes.

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Karl Storz Endoscopy-America Inc v. STERIS Instrument Management Services, Inc., Counsel Stack Legal Research, https://law.counselstack.com/opinion/karl-storz-endoscopy-america-inc-v-steris-instrument-management-services-alnd-2022.