K Number
K142939
Device Name
Revolution Spinal Fixation System
Date Cleared
2015-01-13

(96 days)

Product Code
Regulation Number
888.3070
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The Revolution™ Spinal Fixation System is intended for pedicle screw fixation of the noncervical posterior spine in order to provide immobilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of the following acute and chronic instabilities or deformities of the thoracic, lumbar, and sacral spine: (1) degenerative disc disease (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies), (2) spondylolisthesis, (3) trauma (i.e., fracture or dislocation), (4) spinal stenosis, (5) deformities or curvatures (i.e. scoliosis, kyphosis, and/or lordosis), (6) tumor, (7) pseudoarthrosis, (8) failed previous fusion.
Device Description
The Intelligent Implant Systems' Revolution™ Spinal Fixation System consists of monoaxial bone screws of various lengths and diameters and a series of connector assemblies for connecting the bone screws. The Revolution™ Bone Screws have a standard thread for interfacing bone and a partially threaded post designed to engage the Revolution™ Connectors. Screws are available in 4.5mm major diameter and lengths from 25mm to 50mm and 5.5mm, 6.5mm, and 7.5mm major diameters and lengths from 25mm to 55mm. All screw diameter sizes except for the 4.5mm are cannulated for use with a 1.4 mm k-wire. To allow the surgeon to determine the height of the connector relative to the bone, screws with extended non-threaded collars are provided. These extended collars effectively provide built in spacers that prevent the bone screw from being driven too deep and control the overall height of the completed assembly. The Revolution™ Connectors are provided in various lengths and are used to connect the pedicle screws and create a rigid structure. To allow for variation in screw placement, each end of the connector allows for angular compensation. One end allows for full polyaxial angulation, similar to a typical polyaxial screw. The other end has a pivoting-slide that allows for angulation in only one plane along the long axis of the Connector while also sliding within an opening in the Connector. As the distance between two screws is always variable, the slide allows the Connector to compensate for this difference, minimizing inventory and eliminating the need to cut spinal rods. In addition, the Connectors have a threaded locking nut built into each end and each nut fits over the top of a bone screw post. These locking nuts are turned clockwise to tighten. A calibrated torque wrench provides the correct setting for locking the nuts on the bone screw post with sufficient force. The system can be unlocked, if necessary, by turning the locking nuts counterclockwise. All implant components of the Revolution™ Spinal Fixation System are manufactured from Ti-6Al-4V ELI alloy, conforming to ASTM F136.
More Information

Not Found

No
The device description focuses on mechanical components and materials, with no mention of software, algorithms, or data processing that would indicate AI/ML. The performance studies are mechanical tests, not algorithmic performance evaluations.

Yes

The device is intended to provide immobilization of spinal segments as an adjunct to fusion in the treatment of various acute and chronic instabilities or deformities of the thoracic, lumbar, and sacral spine. This clearly indicates a therapeutic purpose.

No

The device description indicates that the Revolution™ Spinal Fixation System is comprised of screws and connectors designed for spinal immobilization as an adjunct to fusion. It is a surgical implant used for treatment, not for diagnosing conditions.

No

The device description clearly outlines physical components made of Ti-6Al-4V ELI alloy, such as bone screws and connector assemblies, and describes mechanical testing performed on these components. This indicates a hardware-based medical device.

Based on the provided information, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use: The intended use clearly describes a surgical implant for stabilizing the spine. This is a therapeutic device, not a diagnostic one.
  • Device Description: The description details the physical components of a spinal fixation system (screws, connectors, etc.). These are physical implants used in surgery.
  • Lack of Diagnostic Elements: There is no mention of analyzing biological samples (blood, tissue, etc.), detecting markers, or providing diagnostic information.
  • Performance Studies: The performance studies focus on mechanical testing of the implant's strength and durability, which is relevant for a surgical device, not an IVD.

IVD devices are used to examine specimens derived from the human body to provide information for diagnostic, monitoring, or compatibility purposes. This device does not fit that description.

N/A

Intended Use / Indications for Use

The Revolution™ Spinal Fixation System is intended for pedicle screw fixation of the non-cervical posterior spine in order to provide immobilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of the following acute and chronic instabilities or deformities of the thoracic, lumbar, and sacral spine: (1) degenerative disc disease (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies), (2) spondylolisthesis, (3) trauma (i.e., fracture or dislocation), (4) spinal stenosis, (5) deformities or curvatures (i.e. scoliosis, kyphosis, and/or lordosis), (6) tumor, (7) pseudoarthrosis, (8) failed previous fusion.

Product codes (comma separated list FDA assigned to the subject device)

NKB, MNI, MNH

Device Description

The Intelligent Implant Systems' Revolution™ Spinal Fixation System consists of monoaxial bone screws of various lengths and diameters and a series of connector assemblies for connecting the bone screws.

The Revolution™ Bone Screws have a standard thread for interfacing bone and a partially threaded post designed to engage the Revolution™ Connectors. Screws are available in 4.5mm major diameter and lengths from 25mm to 50mm and 5.5mm, 6.5mm, and 7.5mm major diameters and lengths from 25mm to 55mm. All screw diameter sizes except for the 4.5mm are cannulated for use with a 1.4 mm k-wire. To allow the surgeon to determine the height of the connector relative to the bone, screws with extended non-threaded collars are provided. These extended collars effectively provide built in spacers that prevent the bone screw from being driven too deep and control the overall height of the completed assembly.

The Revolution™ Connectors are provided in various lengths and are used to connect the pedicle screws and create a rigid structure. To allow for variation in screw placement, each end of the connector allows for angular compensation. One end allows for full polyaxial angulation, similar to a typical polyaxial screw. The other end has a pivoting-slide that allows for angulation in only one plane along the long axis of the Connector while also sliding within an opening in the Connector. As the distance between two screws is always variable, the slide allows the Connector to compensate for this difference, minimizing inventory and eliminating the need to cut spinal rods. In addition, the Connectors have a threaded locking nut built into each end and each nut fits over the top of a bone screw post. These locking nuts are turned clockwise to tighten. A calibrated torque wrench provides the correct setting for locking the nuts on the bone screw post with sufficient force. The system can be unlocked, if necessary, by turning the locking nuts counterclockwise.

All implant components of the Revolution™ Spinal Fixation System are manufactured from Ti-6Al-4V ELI alloy, conforming to ASTM F136.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

non-cervical posterior spine (thoracic, lumbar, and sacral spine)

Indicated Patient Age Range

skeletally mature patients

Intended User / Care Setting

Prescription Use

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Mechanical Testing:
To validate the strength and safety of the system, testing was conducted according to methods defined in ASTM F 1798-13, "Standard Test Method for Evaluating the Static and Fatigue Properties of Interconnection Mechanisms and Subassemblies Used in Spinal Arthrodesis Implants", and ASTM F 1717-14, "Standard Test Methods for Spinal Implant Constructs in a Vertebrectomy Model".

Testing per ASTM F1798-13:

  1. Static Flexion-Extension Strength
  2. Axial Gripping Strength
  3. Static A-P Pullout Strength

Testing per ASTM F1717-14:

  1. Static Compression Bending
  2. Static Torsional Bending
  3. Dynamic Compression Bending

Key Results: The testing revealed that the mechanical properties of the Revolution™ Spinal Fixation System were comparable to published values on plate and rod systems.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K061364, K023415, K013196

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 888.3070 Thoracolumbosacral pedicle screw system.

(a)
Identification. (1) Rigid pedicle screw systems are comprised of multiple components, made from a variety of materials that allow the surgeon to build an implant system to fit the patient's anatomical and physiological requirements. Such a spinal implant assembly consists of a combination of screws, longitudinal members (e.g., plates, rods including dual diameter rods, plate/rod combinations), transverse or cross connectors, and interconnection mechanisms (e.g., rod-to-rod connectors, offset connectors).(2) Semi-rigid systems are defined as systems that contain one or more of the following features (including but not limited to): Non-uniform longitudinal elements, or features that allow more motion or flexibility compared to rigid systems.
(b)
Classification. (1) Class II (special controls), when intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of the following acute and chronic instabilities or deformities of the thoracic, lumbar, and sacral spine: severe spondylolisthesis (grades 3 and 4) of the L5-S1 vertebra; degenerative spondylolisthesis with objective evidence of neurologic impairment; fracture; dislocation; scoliosis; kyphosis; spinal tumor; and failed previous fusion (pseudarthrosis). These pedicle screw spinal systems must comply with the following special controls:(i) Compliance with material standards;
(ii) Compliance with mechanical testing standards;
(iii) Compliance with biocompatibility standards; and
(iv) Labeling that contains these two statements in addition to other appropriate labeling information:
“Warning: The safety and effectiveness of pedicle screw spinal systems have been established only for spinal conditions with significant mechanical instability or deformity requiring fusion with instrumentation. These conditions are significant mechanical instability or deformity of the thoracic, lumbar, and sacral spine secondary to severe spondylolisthesis (grades 3 and 4) of the L5-S1 vertebra, degenerative spondylolisthesis with objective evidence of neurologic impairment, fracture, dislocation, scoliosis, kyphosis, spinal tumor, and failed previous fusion (pseudarthrosis). The safety and effectiveness of these devices for any other conditions are unknown.”
“Precaution: The implantation of pedicle screw spinal systems should be performed only by experienced spinal surgeons with specific training in the use of this pedicle screw spinal system because this is a technically demanding procedure presenting a risk of serious injury to the patient.”
(2) Class II (special controls), when a rigid pedicle screw system is intended to provide immobilization and stabilization of spinal segments in the thoracic, lumbar, and sacral spine as an adjunct to fusion in the treatment of degenerative disc disease and spondylolisthesis other than either severe spondylolisthesis (grades 3 and 4) at L5-S1 or degenerative spondylolisthesis with objective evidence of neurologic impairment. These pedicle screw systems must comply with the following special controls:
(i) The design characteristics of the device, including engineering schematics, must ensure that the geometry and material composition are consistent with the intended use.
(ii) Non-clinical performance testing must demonstrate the mechanical function and durability of the implant.
(iii) Device components must be demonstrated to be biocompatible.
(iv) Validation testing must demonstrate the cleanliness and sterility of, or the ability to clean and sterilize, the device components and device-specific instruments.
(v) Labeling must include the following:
(A) A clear description of the technological features of the device including identification of device materials and the principles of device operation;
(B) Intended use and indications for use, including levels of fixation;
(C) Identification of magnetic resonance (MR) compatibility status;
(D) Cleaning and sterilization instructions for devices and instruments that are provided non-sterile to the end user; and
(E) Detailed instructions of each surgical step, including device removal.
(3) Class II (special controls), when a semi-rigid system is intended to provide immobilization and stabilization of spinal segments in the thoracic, lumbar, and sacral spine as an adjunct to fusion for any indication. In addition to complying with the special controls in paragraphs (b)(2)(i) through (v) of this section, these pedicle screw systems must comply with the following special controls:
(i) Demonstration that clinical performance characteristics of the device support the intended use of the product, including assessment of fusion compared to a clinically acceptable fusion rate.
(ii) Semi-rigid systems marketed prior to the effective date of this reclassification must submit an amendment to their previously cleared premarket notification (510(k)) demonstrating compliance with the special controls in paragraphs (b)(2)(i) through (v) and paragraph (b)(3)(i) of this section.

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Image /page/0/Picture/1 description: The image shows the seal of the Department of Health & Human Services - USA. The seal is circular and contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. In the center of the seal is an abstract image of three faces in profile, stacked on top of each other.

Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002

January 13, 2015

Intelligent Implant Systems, LLC Mr. Michael Nutt Chief Operating Officer 3300 International Airport Drive, Suite 1100 Charlotte, North Carolina 28208

Re: K142939

Trade/Device Name: Revolution™ Spinal Fixation System Regulation Number: 21 CFR 888.3070 Regulation Name: Pedicle screw spinal system Regulatory Class: Class III Product Code: NKB, MNI, MNH Dated: December 15, 2014 Received: December 16, 2014

Dear Mr. Nutt:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food. Drug. and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set

1

Page 2 - Mr. Michael Nutt

forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address

http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm. Also, please note the regulation entitled. "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to

http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.

You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address

http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.

Sincerely vours.

Lori A. Wiggins -S

for Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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Indications for Use Statement

510(k) Number (if known): K142939

Device Name: Revolution™ Spinal Fixation System

Indications for Use:

The Revolution™ Spinal Fixation System is intended for pedicle screw fixation of the noncervical posterior spine in order to provide immobilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of the following acute and chronic instabilities or deformities of the thoracic, lumbar, and sacral spine: (1) degenerative disc disease (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies), (2) spondylolisthesis, (3) trauma (i.e., fracture or dislocation), (4) spinal stenosis, (5) deformities or curvatures (i.e. scoliosis, kyphosis, and/or lordosis), (6) tumor, (7) pseudoarthrosis, (8) failed previous fusion.

Prescription Use X (Part 21 CFR 801 Subpart D)

AND/OR

Over-The-Counter Use (21 CFR 801 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

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510(k) SUMMARY

Intelligent Implant Systems' Revolution™ Spinal Fixation System

I.Submitter:Intelligent Implant Systems, LLC
3300 International Airport Drive, Suite 1100
Charlotte, NC 28208
(704) 424-1009
(704) 424-1011 (FAX)
Contact Person:Michael Nutt
Chief Operations Officer
(704) 424-1009

Date Prepared: December 15, 2014

II. Device

Name of Device: Revolution™ Spinal Fixation System

Common or Usual Name: Spinal Fixation System

Classification Name: Non-Cervical, Pedicle System (21 CFR 888.3070)

Regulatory Class: III

Product Codes: MNI, MNH, NKB

III. Predicate Devices

Primary Predicate: LifeSpine PILOT®-P Posterior Lumbar Plating System (K061364)

Additional Predicates: Medtronic Sofamor Danek: Dynalok Classic™ Spinal System (K023415) Spinal Innovations Ascend with Shadow Spinal Fixation System (K013196)

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IV. Device Description

The Intelligent Implant Systems' Revolution™ Spinal Fixation System consists of monoaxial bone screws of various lengths and diameters and a series of connector assemblies for connecting the bone screws.

The Revolution™ Bone Screws have a standard thread for interfacing bone and a partially threaded post designed to engage the Revolution™ Connectors. Screws are available in 4.5mm major diameter and lengths from 25mm to 50mm and 5.5mm, 6.5mm, and 7.5mm major diameters and lengths from 25mm to 55mm. All screw diameter sizes except for the 4.5mm are cannulated for use with a 1.4 mm k-wire. To allow the surgeon to determine the height of the connector relative to the bone, screws with extended non-threaded collars are provided. These extended collars effectively provide built in spacers that prevent the bone screw from being driven too deep and control the overall height of the completed assembly.

The Revolution™ Connectors are provided in various lengths and are used to connect the pedicle screws and create a rigid structure. To allow for variation in screw placement, each end of the connector allows for angular compensation. One end allows for full polyaxial angulation, similar to a typical polyaxial screw. The other end has a pivoting-slide that allows for angulation in only one plane along the long axis of the Connector while also sliding within an opening in the Connector. As the distance between two screws is always variable, the slide allows the Connector to compensate for this difference, minimizing inventory and eliminating the need to cut spinal rods. In addition, the Connectors have a threaded locking nut built into each end and each nut fits over the top of a bone screw post. These locking nuts are turned clockwise to tighten. A calibrated torque wrench provides the correct setting for locking the nuts on the bone screw post with sufficient force. The system can be unlocked, if necessary, by turning the locking nuts counterclockwise.

All implant components of the Revolution™ Spinal Fixation System are manufactured from Ti-6Al-4V ELI alloy, conforming to ASTM F136.

V. Indications for Use

Indications for Use:

The Revolution™ Spinal Fixation System is intended for pedicle screw fixation of the non-cervical posterior spine in order to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of the following acute and chronic instabilities or deformities of the thoracic, lumbar, and sacral spine: (1) degenerative disc disease (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies), (2) spondylolisthesis, (3) trauma (i.e., fracture or dislocation), (4) spinal stenosis, (5) deformities or curvatures (i.e. scoliosis, kyphosis, and/or lordosis), (6) tumor, (7) pseudoarthrosis, (8) failed previous fusion.

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VI. Comparison of Technological Characteristics with the Predicate Devices

The Revolution™ Spinal Fixation System and the predicate devices are all posterior systems utilizing pedicle fixation for stabilization of spinal segments. At a high level, the subject and predicate devices all have the following technological characteristics:

  • Bone thread used to implant bone screws in pedicles
  • Lock nuts or bolts used to attach bone screws to plates or rods
  • Torque is applied to lock nuts or bolts to secure assemblies ●

The following technological differences exist between the subject and predicate devices:

  • Adjustability is provided in the connector design, not the screw head as seen in rod ● systems
  • Connectors allow more adjustability than predicate plate designs by incorporating a ● polyaxial connection at one end and a pivoting-slide connection at the other end
  • Geometry of the Revolution™ connector is a 5.5 mm rod in the center, with a plate-● like construct on the ends

VII. Performance Data

The following performance data were provided in support of the substantial equivalence determination:

Mechanical Testing:

To validate the strength and safety of the system, testing was conducted according to methods defined in ASTM F 1798-13, "Standard Test Method for Evaluating the Static and Fatigue Properties of Interconnection Mechanisms and Subassemblies Used in Spinal Arthrodesis Implants", and ASTM F 1717-14, "Standard Test Methods for Spinal Implant Constructs in a Vertebrectomy Model". The types of testing performed on the polyaxial and sliding screw assemblies are listed below.

Testing per ASTM F1798-13

The following types of testing were performed on the Revolution™ Spinal Fixation System per ASTM F1798-13:

    1. Static Flexion-Extension Strength
    1. Axial Gripping Strength
    1. Static A-P Pullout Strength

Testing per ASTM F1717-14

The following types of testing were performed on the Revolution™ Spinal Fixation System per ASTM F1717-14:

    1. Static Compression Bending

6

    1. Static Torsional Bending
    1. Dynamic Compression Bending

The testing revealed that the mechanical properties of the Revolution™ Spinal Fixation System were comparable to published values on plate and rod systems.

Materials: All components of the Revolution™ Spinal Fixation System are machined from Ti-6Al-4V ELI, conforming to ASTM F-136.

Summary: Based on the mechanical testing that was performed and the composition of the device, the Revolution™ Spinal Fixation System was found to have a safety and effectiveness profile similar to the predicate devices.

VIII. Conclusions

The design of the Revolution™ Spinal Fixation System is similar to the predicate devices, it functions in a similar manner, and its mechanical properties are comparable. Thus, the Revolution™ Spinal Fixation System is substantially equivalent to the predicate devices in design, function, materials, mechanical performance, and intended use.