DCT

1:22-cv-00891

Jackson v. Highridge Medical LLC

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I. Executive Summary and Procedural Information

  • Parties & Counsel:
  • Case Identification: 1:22-cv-00891, D. Del., 08/23/2024
  • Venue Allegations: Venue is alleged as proper pursuant to 28 U.S.C. § 1391(b)(1) or (2) and § 1400(a) and (b). The complaint notes that the Defendant waived personal jurisdiction.
  • Core Dispute: Plaintiff alleges that Defendant’s spinal fixation systems infringe thirteen patents related to spinal implant technology, including various designs for polyaxial bone screws, receivers, and closure mechanisms.
  • Technical Context: The technology domain is spinal implant systems, which are critical medical devices used in surgical procedures to fixate or align a patient's vertebrae to treat a range of spinal maladies.
  • Key Procedural History: The complaint alleges that Defendant inherited certain limited license rights from predecessor companies, including a narrow license related to U.S. Patent No. 7,837,716 for "Non Break Off Closure Tops." Plaintiff also alleges that licensing discussions with the Defendant regarding several of the asserted patents occurred between November 2016 and February 2018 but did not result in a license for the accused products.

Case Timeline

Date Event
2000-08-23 Priority Date for U.S. Patent No. 7,837,716
2003-04-09 Priority Date for U.S. Patent No. 10,952,777
2003-05-22 Priority Date for U.S. Patent Nos. 10,524,840 and 10,537,366
2003-06-18 Priority Date for U.S. Patent No. 9,808,292
2004-11-23 Priority Date for U.S. Patent No. 9,999,452
2005-02-22 Priority Date for U.S. Patent No. 9,662,143
2005-05-27 Priority Date for U.S. Patent No. 10,064,660
2005-09-30 Priority Date for U.S. Patent Nos. 11,045,229 and 11,134,993
2009-07-13 Priority Date for U.S. Patent No. 9,980,753
2010-11-23 U.S. Patent No. 7,837,716 Issued
2012-01-10 Priority Date for U.S. Patent Nos. 10,898,233 and 11,129,646
2016-11-01 Accused Vitality/Vital system sales began by at least this time
2016-11-01 Plaintiff and Defendant allegedly began licensing discussions
2017-05-30 U.S. Patent No. 9,662,143 Issued
2017-11-07 U.S. Patent No. 9,808,292 Issued
2018-05-29 U.S. Patent No. 9,980,753 Issued
2018-06-19 U.S. Patent No. 9,999,452 Issued
2018-09-04 U.S. Patent No. 10,064,660 Issued
2020-01-07 U.S. Patent No. 10,524,840 Issued
2020-01-21 U.S. Patent No. 10,537,366 Issued
2021-01-26 U.S. Patent No. 10,898,233 Issued
2021-03-23 U.S. Patent No. 10,952,777 Issued
2021-06-29 U.S. Patent No. 11,045,229 Issued
2021-09-28 U.S. Patent No. 11,129,646 Issued
2021-10-05 U.S. Patent No. 11,134,993 Issued
2022-06-30 Original Complaint Filed
2024-08-23 Second Amended Complaint Filed

II. Technology and Patent(s)-in-Suit Analysis

The complaint asserts thirteen patents, which it states generally relate to “spinal fixation systems composed of separately inserted implants used to fixate or align vertebrae” (Compl. ¶11). The full patent documents and claim chart exhibits were not attached to the provided complaint, precluding a detailed analysis of the patented technology based on intrinsic evidence. The analysis below is based on information contained within the complaint.

U.S. Patent No. 7,837,716 - “Threadform for Medical Implant Closure”

  • Patent Identification: U.S. Patent No. 7,837,716, titled “Threadform for Medical Implant Closure,” issued on November 23, 2010 (Compl. ¶14).
  • The Invention Explained: The patent document was not provided for analysis. Based on its title and the infringement allegations, the invention appears to relate to the specific thread design used on closure components for spinal implants (Compl. ¶14; Compl. ¶66).
  • Key Claims at a Glance: The complaint asserts at least claims 1 and 2 (Compl. ¶67). The claim language is not provided.

U.S. Patent No. 9,662,143 - “Dynamic Fixation Assemblies with Inner Core and Outer Coil-Like Member”

  • Patent Identification: U.S. Patent No. 9,662,143, titled “Dynamic Fixation Assemblies with Inner Core and Outer Coil-Like Member,” issued on May 30, 2017 (Compl. ¶15).
  • The Invention Explained: The patent document was not provided for analysis. Based on its title, the invention appears to concern dynamic (non-rigid) spinal fixation systems that utilize a specific construction involving an inner core and an outer coil-like structure (Compl. ¶15).
  • Key Claims at a Glance: The complaint asserts at least claims 11 and 15 (Compl. ¶78). The claim language is not provided.

Additional Asserted Patents

  • U.S. Patent No. 9,808,292: Titled “Cannulated Polyaxial Screw,” issued November 7, 2017 (Compl. ¶16).

    • Technology Synopsis: Based on the title, the patent describes a polyaxial bone screw that is cannulated, meaning it has a hollow channel through its center, often for guiding the screw over a wire during minimally invasive surgery (Compl. ¶16; Compl. ¶89).
    • Asserted Claims: At least claim 1 (Compl. ¶89).
    • Accused Features: The cannulated features of the Cypher MIS, Telluride II, and Vital MIS screw products are accused of infringement (Compl. ¶¶60; Compl. ¶62; Compl. ¶89).

  • U.S. Patent No. 9,980,753: Titled “Pivotal Anchor with Snap-In-Place Insert Having Rotation Blocking Extensions,” issued May 29, 2018 (Compl. ¶17).

    • Technology Synopsis: The patent appears to relate to a pivotal bone anchor assembly featuring an insert that snaps into place and includes extensions to block rotation, suggesting a mechanism for pre-locking or positioning the anchor (Compl. ¶17; Compl. ¶100).
    • Asserted Claims: At least claim 1 (Compl. ¶100).
    • Accused Features: The Vitality/Vital screw products, described as comprising an assembly with a "top-drop snap-in-place insert," are accused of infringement (Compl. ¶42; Compl. ¶100).

  • U.S. Patent No. 9,999,452: Titled “Bone Anchor Receiver with Upper Tool Engaging Grooves and Planar Faces,” issued June 19, 2018 (Compl. ¶18).

    • Technology Synopsis: The patent appears to describe the external geometry of a bone anchor's receiver component, specifically focusing on grooves for engaging with surgical instruments (Compl. ¶18; Compl. ¶110).
    • Asserted Claims: At least claim 1 (Compl. ¶110).
    • Accused Features: The receivers of the Vitality/Vital system, which allegedly include a "Zim Rim" tool attachment feature configured as "curvate extending instrument engaging grooves," are accused of infringement (Compl. ¶37; Compl. ¶42; Compl. ¶110).

  • U.S. Patent No. 10,064,660: Titled “Pivotal Bone Anchor Assembly with Interference Fit Insert,” issued September 4, 2018 (Compl. ¶19).

    • Technology Synopsis: The patent appears to cover a pivotal bone anchor that uses an insert to create an interference fit, likely to provide provisional stability or "friction fit" before final locking (Compl. ¶19; Compl. ¶119).
    • Asserted Claims: At least claim 28 (Compl. ¶119).
    • Accused Features: The internal structures of the Vitality/Vital screw products are accused of infringement (Compl. ¶39; Compl. ¶119).

  • U.S. Patent No. 10,524,840: Titled “Variable Angle Bone Anchor Assembly Having Biased Bushing Press Fitment,” issued January 7, 2020 (Compl. ¶20).

    • Technology Synopsis: The patent appears to describe a polyaxial (variable angle) bone anchor that uses a bushing to create a press fit, establishing a pre-lock friction fit (Compl. ¶20; Compl. ¶129).
    • Asserted Claims: At least claim 17 (Compl. ¶129).
    • Accused Features: The "pre-lock friction fit" feature of the assembled bone screws in the Vitality/Vital and Virage systems are accused of infringement (Compl. ¶39; Compl. ¶52; Compl. ¶129).

  • U.S. Patent No. 10,537,366: Titled “Pivotal Bone Anchor Assembly with Snap-In-Place Bushing for Pre-Lock Friction Fit,” issued January 21, 2020 (Compl. ¶22).

    • Technology Synopsis: The patent appears to relate to a pivotal bone anchor assembly using a snap-in bushing to achieve a "pre-lock friction fit" (Compl. ¶22; Compl. ¶139).
    • Asserted Claims: At least claim 22 (Compl. ¶139).
    • Accused Features: The "pre-lock friction fit" feature of the assembled bone screws in the Vitality/Vital system is accused of infringement (Compl. ¶39; Compl. ¶139).

  • U.S. Patent No. 10,898,233: Titled “Medical Implant Receivers Having Dual Lead In Closure Mating Thread Forms and Curvate Extending Instrument Engaging Grooves,” issued January 26, 2021 (Compl. ¶24).

    • Technology Synopsis: The patent appears to cover a receiver component for a medical implant featuring both a dual-lead thread for the closure mechanism and curved grooves for instrument engagement (Compl. ¶24; Compl. ¶149).
    • Asserted Claims: At least claim 1 (Compl. ¶149).
    • Accused Features: The receiver parts of the Vitality/Vital products, which allegedly have "curvate extending instrument engaging grooves" and closures with "dual lead...reverse angle thread," are accused of infringement (Compl. ¶37; Compl. ¶42; Compl. ¶149).

  • U.S. Patent No. 10,952,777: Titled “Pivotal Bone Screw Assembly with Receiver Having Threaded Open Channel and Lower Opening,” issued March 23, 2021 (Compl. ¶25).

    • Technology Synopsis: The patent seems to describe the overall construction of a pivotal bone screw assembly, focusing on the receiver's threaded open channel and lower opening for the screw shank (Compl. ¶25; Compl. ¶159).
    • Asserted Claims: At least claims 1 and 10 (Compl. ¶159).
    • Accused Features: The Vitality/Vital screw products, described as pivotal bone screws with a receiver, are accused of infringement (Compl. ¶42; Compl. ¶159).

  • U.S. Patent No. 11,045,229: Titled “Bone Anchor Receiver with Outer Tool Engaging Grooves Above an Internal Insert Constraining Recess,” issued June 29, 2021 (Compl. ¶26).

    • Technology Synopsis: The patent appears to describe a receiver for a bone anchor with specific external grooves for tool engagement and an internal recess that constrains an insert (Compl. ¶26; Compl. ¶169).
    • Asserted Claims: At least claim 15 (Compl. ¶169).
    • Accused Features: The receiver assemblies of the Vitality/Vital screw products are accused of infringement (Compl. ¶42; Compl. ¶169).

  • U.S. Patent No. 11,129,646: Titled “Medical Implant Threaded Plug Having a Start Structure with Symmetrically Shaped Concave and Convex Leading Surfaces,” issued September 28, 2021 (Compl. ¶27).

    • Technology Synopsis: The patent seems to relate to the specific design of the starting threads on a closure plug, featuring symmetrical concave and convex surfaces to facilitate easier engagement (Compl. ¶27; Compl. ¶179).
    • Asserted Claims: At least claims 1 and 12 (Compl. ¶179).
    • Accused Features: The closure components of the Vitality/Vital screw products are accused of infringement (Compl. ¶42; Compl. ¶179).

  • U.S. Patent No. 11,134,993: Titled “Pivotal Bone Anchor Assembly with Snap-In-Place Insert,” issued October 5, 2021 (Compl. ¶28).

    • Technology Synopsis: The patent appears to describe a pivotal bone anchor that utilizes a snap-in insert, likely to connect the screw shank to the receiver (Compl. ¶28; Compl. ¶189).
    • Asserted Claims: At least claim 1 (Compl. ¶189).
    • Accused Features: The "top-drop snap-in-place insert" of the Vitality/Vital screw products is accused of infringement (Compl. ¶42; Compl. ¶189).

III. The Accused Instrumentality

Product Identification

The complaint names the Zimmer “Vitality/Vital, Vital MIS, Virage, Cypher MIS, and Telluride II” spinal implant systems as the Accused Products (Compl. ¶64).

Functionality and Market Context

The Accused Products are described as comprehensive spinal fixation systems used to treat conditions including degenerative disc disease, trauma, and deformities (Compl. ¶37; Compl. ¶40). The systems include components such as bone screws, closures, hooks, and rods that are sold separately or in surgical trays (Compl. ¶43).

The complaint highlights several specific functionalities across the product lines:

  • Vitality/Vital and Vital MIS Systems: These systems offer multiple screw options (monoaxial, polyaxial, etc.) and employ closures with a "dual lead...reverse angle thread" (Compl. ¶41; Compl. ¶42). The screws are assemblies of a shank, a receiver, and a "top-drop snap-in-place insert" (Compl. ¶42). The complaint provides an image array of various accused components, including Polyaxial Screws, Polyaxial Reduction Screws, and Closure Tops with "Shear Off" and "Torque Limit" designs (Compl. p. 14). The Vital MIS system is described as a percutaneous screw delivery system using cannulated implants (Compl. ¶45).
  • Virage System: This system features polyaxial screws with a "pre-lock friction fit" head designed to hold a desired position and facilitate rod placement during surgery (Compl. ¶¶51-52). A graphic from a brochure for the Virage screw depicts features including a "LOW-PROFILE HOUSING," "DUAL-LEAD THREAD," and "FRICTION-FIT HEAD" (Compl. p. 19).
  • Cypher MIS and Telluride II Systems: Both are described as percutaneous, minimally invasive systems that use "cannulated polyaxial pedicle screws" (Compl. ¶¶59-60; Compl. ¶62).

IV. Analysis of Infringement Allegations

The complaint references claim chart exhibits that were not provided with the reviewed document. The infringement allegations for the lead patents are summarized below in prose.

’716 Patent Infringement Allegations

The complaint alleges that the Vitality/Vital products using "break off ('shear off') closure tops" constitute a "bone screw apparatus" as set forth in at least claims 1 and 2 of the '716 patent (Compl. ¶67). Infringement is alleged to occur literally or under the doctrine of equivalents, both through the sale of the products and through their implantation by surgeons (Compl. ¶¶67-68).

’143 Patent Infringement Allegations

The complaint alleges that the Vitality/Vital screw products comprise a "pivotal bone anchor assembly" as set forth in at least claims 11 and 15 of the '143 patent (Compl. ¶78). Infringement is alleged to occur literally or under the doctrine of equivalents through both sale and surgical implantation (Compl. ¶¶78-79).

Identified Points of Contention

  • License Scope ("’716" Patent): A central dispute for the "’716" patent may concern the scope of a pre-existing license. The complaint alleges Defendant inherited a "narrow and limited license to certain 'Non Break Off Closure Tops'" but that the accused products are "break off ('shear off') closure tops" that fall outside the license (Compl. ¶33; Compl. ¶66). The analysis may turn on the construction of these terms and the technical differences, if any, between the licensed and accused closure tops.
  • Doctrine of Equivalents: For all asserted patents, the complaint pleads infringement under the doctrine of equivalents as an alternative to literal infringement (Compl. ¶67; Compl. ¶78). This raises the question of whether the accused product features perform substantially the same function, in substantially the same way, to achieve substantially the same result as the claimed elements, should literal infringement not be found.
  • Technical Infringement: Across the various patents, a core technical question will be how the specific features of the different Accused Products (e.g., the "snap-in-place insert," "pre-lock friction fit," "curvate extending instrument engaging grooves") map onto the specific limitations of the asserted claims.

V. Key Claim Terms for Construction

The patent documents for U.S. Patent Nos. 7,837,716 and 9,662,143, which contain the intrinsic evidence necessary for claim construction analysis, were not provided with the complaint. Therefore, an analysis of key claim terms cannot be performed.

VI. Other Allegations

Indirect Infringement

The complaint alleges both induced and contributory infringement for all thirteen asserted patents.

  • Inducement: The allegations are based on Defendant providing the accused components along with "instructions and tools to accomplish their surgical implantation," allegedly encouraging surgeons to directly infringe (Compl. ¶70; Compl. ¶81).
  • Contributory Infringement: The complaint alleges that the accused components are "material components" of the patented apparatuses, are designed to work together, and have "no substantial purpose other than as part of infringing devices," thus not being staple articles of commerce (Compl. ¶71; Compl. ¶82).

Willful Infringement

The complaint alleges willful infringement for all asserted patents.

  • For the "’716" patent, willfulness is alleged "from at least as early as of the commencement of sales of the Vitality/Vital System," based on Defendant’s alleged knowledge from a pre-existing limited license and licensing discussions in November 2016 (Compl. ¶69; Compl. ¶75).
  • For the "’143" patent, willfulness is alleged "from at least as early as February 2018," based on alleged actual knowledge from licensing discussions where a license was offered in 2017 and early 2018 (Compl. ¶80; Compl. ¶86).

VII. Analyst’s Conclusion: Key Questions for the Case

Based on the complaint, the litigation will likely focus on several central, open questions for the court's determination:

  • A primary issue for the "’716" patent will be one of license scope: can the term "Non Break Off Closure Tops" in a pre-existing license be interpreted to exclude the accused "shear off" closure tops, as Plaintiff alleges, or do the accused products fall within the licensed technology?
  • A recurring evidentiary question will be one of technical mapping: what evidence will be presented to demonstrate that the various features across Defendant's multiple product lines (e.g., the "friction-fit head" of the Virage system, the "snap-in-place insert" of the Vitality system) meet the specific limitations of the asserted claims, particularly for the numerous patents related to "pivotal bone anchor assemblies"?
  • A key legal and factual question will be willfulness and intent: did Defendant's alleged pre-suit knowledge of the patents, stemming from a prior limited license and failed licensing discussions, make its continued sales of the Accused Products objectively reckless and constitute specific intent to induce infringement by others?
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