STEALTHSTATION SYSTEM UPDATE

• K Number: K050438
• Device Name: STEALTHSTATION SYSTEM UPDATE
• Manufacturer: MEDTRONIC SURGICAL NAVIGATION TECHNOLOGIES
• Date Cleared: 2005-06-02 ( 100 days)
• Product Code: HAW
• Regulation Number: 882.4560
• Type: Special
• Panel: NE
• Reference & Predicate Devices: N/A

Intended Use

This submission does not change the indications for use for the StealthStation System.

The StealthStation® System is intended as an aid for precisely locating anatomical structures in either open or percutaneous procedures. The StealthStation® System is indicated for any medical condition in which the use of stereotactic surgery may be appropriate, and where reference to a rigid anatomical structure, such as the skull, a long bone, or vertebra, can be identified relative to a CT or MR based model, fluoroscopy images, or digitized landmarks of the anatomy.

For the optical-based and EM-based system, example procedures include, but are not limited to:

Cranial Procedures: Cranial Biopsies Tumor Resections Craniotomies/ Craniectomies Skull Base procedures Thalamotomies/Pallidotomies Pituitary Tumor Removal CSF Leak Repair Pediatric Catheter Shunt Placement General Catheter Shunt Placement

Orthopaedic Procedures: Total Knee Arthroplasty (Primary and Revision) Unicompartmental Knee Arthroplasty

Spinal Procedures: Spinal Implant Procedures, such as Pedicle Screw Placement

ENT Procedures: Transphenoidal Procedures Intranasal Procedures Orbital Nerve Decompression Procedures Optic Nerve Decompression Procedures Polyposis Procedures Endoscopic Dacryocystorhinostomy Encephalocele Procedures Sinus procedures, such as Maxillary Antrostomies. Ethmoidectornies, Sphenoidotomies/Sphenoid Explorations, Turbinate Resections, and Frontal Sinusotomies

Additional example procedures for the optical-based system include, but are not limited to:

Total Knee Arthroplasty (Primary and Revision) Unicompartmental Knee Arthroplasty Minimally Invasive Orthopaedic Procedures Pediatric Orthopaedics Total Hip Replacement (Primary and Revision) Periacetabular Osteotomies Tumor Resection and Bone/Joint Reconstruction Femoral Revision Placement of Iliosacral Screws Stabilization and Repair of Pelvic Fractures (Including but not limited to Acetabular Fractures)

Device Description

This submission provides an update to the StealthStation® System, including a new computer hardware and operating system options, a passive-only optical digitizer option, new cranial reference frame and EM reference frame.

AI/ML Overview

I am sorry, but the provided text from K050438, "Summary of Safety and Effectiveness StealthStation® System Update," does not contain the specific details about acceptance criteria, device performance, or human study methodologies that you've requested.

This document primarily focuses on:

• Device Identification: Naming the device, classification, and contact information.
• Device Modification: Describing the updates to the StealthStation® System (new computer hardware, operating system, digitizer options, and reference frames).
• Substantial Equivalence: Stating that the updated system was shown to be substantially equivalent to previously cleared versions and that verification and validation activities were performed.
• Indications for Use: Reiterating the established indications for use for the StealthStation System, which remain unchanged by this update, and listing various cranial, spinal, ENT, and orthopaedic procedures for which it is indicated.
• FDA Correspondence: The FDA's letter confirming the 510(k) clearance and substantial equivalence.

There is no information within this document about:

• A table of acceptance criteria and reported device performance.
• Sample sizes for test sets, data provenance, or the number/qualifications of experts.
• Adjudication methods.
• Multi-reader multi-case (MRMC) comparative effectiveness studies or effect sizes for human improvement with AI.
• Standalone algorithm performance studies.
• The type of ground truth used.
• Sample size for the training set or how its ground truth was established.

This document describes a regulatory submission for a device update, asserting substantial equivalence rather than presenting detailed performance study data against specific acceptance criteria.

Regulation Number and Section

§ 882.4560 Stereotaxic instrument.

(a)
Identification. A stereotaxic instrument is a device consisting of a rigid frame with a calibrated guide mechanism for precisely positioning probes or other devices within a patient's brain, spinal cord, or other part of the nervous system.(b)
Classification. Class II (performance standards).