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The SOVEREIGN® Spinal System is indicated for use with autogenous bone graft in patients with degenerative disc disease (DDD) at one or two contiguous levels from L2 to SI. DDD is defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies. These patients should be skeletally mature and have had six months of non-operative treatment. These implants may be implanted via a laparoscopic or an open anterior approach.

The SOVEREIGN® interbody system may be used as a stand-alone device or in conjunction with supplemental fixation.

When used as a stand-alone device, the SOVEREIGN® interbody device is intended to be used with the three titanium alloy fixed or variable angle screws. The accompanying cover plate MUST be used anytime the device is used with any number of variable angle screws. If the physician chooses to use less than three or none of the provided screws. then additional supplemental fixation for use in the lumbar spine must be used to augment stability.

The SOVEREIGN® Spinal System is an intervertebral body fusion device with integrated screw fixation. The screws protrude through the interbody portion of the device and stabilize the vertebral body while preventing expulsion of the implant. The implant is lens-shaped with three holes for placement of titanium screws. The SOVEREIGN® Spinal System contains both a fixed and a variable angle screw option. The fixed angle screw option provides an interference fit with the PEEK interbody implant. The variable angle screw option provides a slight clearance between the PEEK interbody implant and the screw which allows for a small amount of variable screw angulation. This system is intended to be radiolucent and the interior space of the product is to be used with autogenous bone graft. The accompanying cover plate is designed to resist screw backout and must be used when the variable angle screws are implanted. The SOVEREIGN® Spinal System interbody device is manufactured from PEEK (polyetheretherketone) and contains tantalum radiopaque markers. The screws used with this device are manufactured from titanium alloy.

The SOVEREIGN® Spinal System includes instrumentation that enables the surgeon to implant the devices via a laparoscopic or an open anterior approach. The purpose of this Special 510(k) submission is to make modifications to the inserter sleeve that is part of SOVEREIGN® Spinal System. The inserter sleeve is a cylindrical stainless steel sleeve, incorporating a polymer bushing, which is used in conjunction with the inserter knob and one of three inserter shafts to securely hold a SOVEREIGN® interbody implant during insertion and impaction into the vertebral disc space.

The provided text is a 510(k) summary for a medical device called the SOVEREIGN® Spinal System. It describes modifications to an inserter sleeve, intended use, and substantial equivalence to predicate devices, supported by non-clinical tests. However, it does not contain any information regarding acceptance criteria or a study that proves a device meets such criteria in a manner relevant to artificial intelligence or diagnostic performance.

Specifically, the document discusses:

• Device Description: The SOVEREIGN® Spinal System is an intervertebral body fusion device with integrated screw fixation. The current submission focuses on modifications to an inserter sleeve.
• Indications for Use: For degenerative disc disease (DDD) at one or two contiguous levels from L2 to S1, with autogenous bone graft, for skeletally mature patients who have had six months of non-operative treatment. It can be used as a stand-alone device with screws or with supplemental fixation.
• Technological Characteristics: The subject device is largely identical to the predicate SOVEREIGN® Spinal System, with the primary modification being the material of a bushing in the inserter sleeve (Radel polyphenylsulfone vs. Delrin polyoxymethylene).
• Predicate Devices: SOVEREIGN® Spinal System (K091813, K110063) as primary predicates, and CAPSTONE CONTROL™, PERIMETER®, and TELAMON® PEEK Spinal System for sterilization and cleaning rationale.
• Non-Clinical Tests: Mechanical (axial pull) testing, tolerance analyses, and user validation were performed to confirm the modified instrument functions as intended. Cleaning and sterilization assessments were also conducted in accordance with various ISO and AAMI standards.
• Conclusions: The sponsor concludes substantial equivalence to predicate devices based on a risk analysis and verification/validation testing of the instrument modifications.

The document does not include:

1. A table of acceptance criteria and reported device performance related to diagnostic accuracy or efficacy studies. The "performance" discussed is related to the mechanical function of the inserter sleeve and its cleaning/sterilization.
2. Sample size, data provenance, number of experts, adjudication method, MRMC comparative effectiveness study, standalone performance, or type of ground truth for a diagnostic test set. These concepts are not applicable to the type of device and submission described (a modification to a surgical instrument, not an AI, diagnostic, or imaging device).
3. Sample size or ground truth establishment for a training set. Again, this is not relevant to a surgical instrument modification.

Therefore, I cannot provide the requested information about acceptance criteria and a study proving a device meets these criteria in the context of AI, diagnostic performance, or similar efficacy studies because the provided text is about a hardware modification to a surgical intervertebral fusion device, not a diagnostic or AI-powered system.

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