K Number
K191336
Device Name
PRECICE System
Date Cleared
2019-09-26

(132 days)

Product Code
Regulation Number
888.3020
Panel
OR
Reference & Predicate Devices
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

The PRECICE® System is indicated for limb-lengthening, open and closed fracture fixation, pseudoarthrosis, mal-unions, non-unions or bone transport of long bones.

Device Description

The PRECICE® System is composed of the PRECICE® Nail, locking screws, end cap, surgical instruments and an external remote controller (ERC). The Nail is available in various diameters, lengths and screw hole configurations to accommodate a variety of patient anatomies. The locking screws are also available in a variety of diameters and lengths. The PRECICE® Nail and end cap is supplied sterile by gamma radiation while the locking screws and reusable instruments are supplied non sterile and must be sterilized prior to use. The Nail contains an enclosed rare earth magnet, telescoping lead screw/nut assembly, and planetary gearing. The Nail is offered in pre-distracted and non-predistracted models. Pre-distracted models are supplied pre-distracted by 10 mm (femur and, tibia models), 15 mm and 20 mm (humeral model), to allow for compression fracture reduction techniques.

The PRECICE® Stryde System includes the PRECICE® Stryde Nail, locking screws, end caps, surgical instruments, and external remote controller (ERC). The PRECICE® Stryde nails and end caps are supplied sterile by gamma radiation while the locking screws and instruments are supplied non-sterile and must be sterilized prior to use. The system is designed to achieve limb correction through gradual lengthening or compression and providing internal fixation for fractures of long bones. The telescopic PRECICE® Stryde Nail is implanted using locking screws, end caps, and reusable surgical instruments. The PRECICE® Stryde Nail contains an enclosed rare earth magnet, telescoping distraction rod, and planetary gearing which allows the length of the nail to be adjusted non-invasively by the External Remote Controller (ERC). The PRECICE® Stryde Nail is available in various diameters, lengths and screw hole configurations to accommodate a variety of patient anatomies and implantation methods. The locking screws are also available in a variety of diameters, lengths, and thread styles. The ERC is available in several compatible models.

The reason for this submission is to introduce some design modifications to the third generation of the External Remote Controller (ERC 3P) cleared under K170169. The subject device, ERC 4P, is fourth generation of ERC component of the PRECICE® System.

AI/ML Overview

The provided document is a 510(k) summary for the PRECICE® System, specifically focusing on the introduction of a new External Remote Controller (ERC 4P). It details the device's indications for use, technological characteristics, and performance data to demonstrate substantial equivalence to predicate devices.

However, the document does not contain any information about a study proving that an AI/device meets acceptance criteria related to classification or detection tasks, as would be typical for an AI-powered medical device. Instead, it focuses on the physical and electrical performance of a mechanical device (intramedullary fixation rod system) and its external controller.

Therefore, I cannot fulfill the request to describe the acceptance criteria and the study that proves the device meets the acceptance criteria in the context of an AI/device for medical image analysis or similar diagnostic/detection tasks. The information required for points 1 through 9 (e.g., sample size for test set, ground truth, expert qualifications, MRMC studies, standalone performance) is not applicable to the type of device described in this 510(k) summary.

The provided text describes a mechanical device (intramedullary fixation rod) and its remote controller, not an AI or imaging device with performance criteria typically measured by metrics like sensitivity, specificity, or reader improvement.

The performance data listed in the document is for physical and electrical safety and usability, not for diagnostic or classification accuracy.

Instead, here is a summary of the type of performance data presented in the document, which are typical for electromechanical medical devices, not AI systems:

  • Electrical Safety: IEC 60601-1 (3rd edition): 2005
  • Electromagnetic Compatibility and Interference: IEC 60601-1-2: 2014
  • Minimum rated voltage testing: (Standard not specified)
  • Shock and Vibration Testing: IEC 60601-1-11:2015
  • Ingress protection: (Standard not specified)
  • Magnet Safety Analysis: N/A (Standard not specified)
  • Usability Study: N/A (Standard not specified)
  • Labeling Readability: N/A (Standard not specified)

These are engineering and safety tests, not studies of diagnostic performance.

§ 888.3020 Intramedullary fixation rod.

(a)
Identification. An intramedullary fixation rod is a device intended to be implanted that consists of a rod made of alloys such as cobalt-chromium-molybdenum and stainless steel. It is inserted into the medullary (bone marrow) canal of long bones for the fixation of fractures.(b)
Classification. Class II.