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The Hubble I System is indicated for use for noncervical pedicle fixation from the T1 to S1 vertebrae in skeletally mature patients as an adjunct to fusion for the following indications: degenerative disc disease (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); spondylolisthesis; trauma (i.e., fracture or dislocation); spinal stenosis; curvatures (i.e., scoliosis, kyphosis, and/or lordosis); tumor; pseudarthrosis; and failed previous fusion.

The Orbbo Hubble I System is an implant device made from a titanium alloy Ti 6Al-4V ELI per ISO 5832-3 and Cobalt-Chrome per ISO 5832-12. The titanium alloy implants are provided sterile. The cobalt-chrome implants are provided non-sterile. It is to be implanted from the posterior approach. The screws are available as monobloc reduction (traction) screws and polyaxial and polyaxial reduction (traction) screws in diameters from 4.0 - 8.0 mm and in lengths from 25 - 55 mm and polyaxial illac screws of 7 and 8mm diameters with lengths from 55mm to 110mm. Rods are available in 5.5mm diameter in lengths from 40 - 500 mm. Hooks are available in various sizes to attach to the thoracic and lumbar spine. Transverse connectors are available in various sizes to attach to the two parallel rods. Associated instrumentation to complete the procedure is provided non-sterile.

The provided document is a 510(k) premarket notification for the Hubble I System, a thoracolumbosacral pedicle screw system. It declares substantial equivalence to a predicate device, the Mont Blanc Spinal System.

Here's an analysis of the acceptance criteria and the study information based on the provided text:

1. Table of Acceptance Criteria and Reported Device Performance

Explanation: The document states that the Hubble I System was evaluated to demonstrate equivalence to the predicate devices. It explicitly mentions that mechanical testing was performed for the predicate devices, which characterized their mechanical performance and fatigue endurance (Static Compression Bend, Static Torsion, and Dynamic Compression Bend per ASTM F1717-13). For the Hubble I System itself, "As there are no changes in design or materials or manufacturing processes, no new performance testing was required." This implies that the Hubble I System is expected to have the same performance as the predicate device because it is considered equivalent in design, materials, and manufacturing, and thus no new tests were performed to establish new acceptance criteria or new performance data for the Hubble I System specifically. The acceptance criteria for the Hubble I System are essentially the demonstrated performance of the predicate device.

Regarding other requested information, the document does not provide the following details, as the submission relies on substantial equivalence and does not report a separate clinical or AI study:

• Sample size used for the test set and the data provenance: Not applicable, as no new clinical or AI study with a test set was performed for the Hubble I System.
• Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable.
• Adjudication method (e.g., 2+1, 3+1, none) for the test set: Not applicable.
• If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance: Not applicable. This device is a surgical implant, not an AI diagnostic or assistive tool.
• If a standalone (i.e., algorithm only without human-in-the-loop performance) was done: Not applicable.
• The type of ground truth used (expert consensus, pathology, outcomes data, etc.): Not applicable.
• The sample size for the training set: Not applicable.
• How the ground truth for the training set was established: Not applicable.

Summary of what was done according to the document:

The Hubble I System's acceptance was primarily based on a declaration of substantial equivalence to existing predicate devices (Mont Blanc Spinal System, K150185 and K161387). The core of the "study that proves the device meets the acceptance criteria" is the assertion that the Hubble I System shares identical technological characteristics (indications for use, materials of manufacture, structural support mechanism) with its predicates.

Therefore, instead of new performance testing for the Hubble I System, the submission leveraged the existing mechanical performance and fatigue endurance data of the predicate devices, which were tested according to ASTM F1717-13 for Static Compression Bend, Static Torsion, and Dynamic Compression Bend. The rationale is that since there are no changes in design, materials, or manufacturing processes for the Hubble I System compared to the predicate, its performance is considered equivalent, and thus no new testing was deemed necessary.

The document explicitly states: "No clinical or animal studies were performed." This clarifies that no independent clinical validation or AI-specific performance study was conducted for the Hubble I System's 510(k) clearance process.

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