K Number
K122332
Device Name
TOWERLOX PEDICLE SCREW SYSTEM
Manufacturer
Date Cleared
2012-10-16

(75 days)

Product Code
Regulation Number
888.3070
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The TowerLOX Spinal System is a posterior, noncervical pedicle fixation system 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 including degenerative spondylolisthesis with objective evidence of neurologic impairment, fracture, dislocation, scoliosis, kyphosis, spinal tumor, pseudoarthrosis and failed previous fusion. In addition, when used as a pedicle screw fixation system, the TowerLOX Spinal System is intended for skeletally mature patients with severe spondylolisthesis (Grades 3 and 4) of the fifth lumbar-first sacral, L5-S1 vertebra, who are receiving fusion by autogenous bone graft only, who are having the device attached to the lumbar and sacral spine (levels may be from L3 to the sacrum/ilium), who are having the device removed after the attainment of a solid fusion.
Device Description
The TowerLOX Pedicle Screw System is an implant device made from a titanium alloy TI 6AL4V-ELI. It is to be implanted from the posterior approach. The screws are available in diameters from 4.9-8.0mm and in lengths from 30-100mm. Rods are available in 5.5mm diameter, as either straight rods available in lengths from 30-500mm or pre-curved rods available in lengths from 30-120mm. The system includes a set screw, tulip heads, and a cap to complete the assembly of the implant. The system also includes all necessary instrumentation for a minimally invasive surgical technique
More Information

Not Found

No
The device description and intended use are solely focused on the mechanical components and surgical application of a spinal fixation system. There is no mention of any software, algorithms, or data processing that would suggest the use of AI/ML.

Yes.
The device is intended to provide immobilization and stabilization of spinal segments as an adjunct to fusion for various spinal conditions, indicating a therapeutic purpose.

No

The device is an implantable pedicle fixation system designed to provide immobilization and stabilization of spinal segments, not to diagnose medical conditions.

No

The device description explicitly states it is an "implant device made from a titanium alloy" and includes various hardware components like screws, rods, set screws, tulip heads, and a cap, as well as surgical instrumentation. This clearly indicates it is a physical medical device, not software-only.

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

Here's why:

  • Intended Use: The intended use clearly states that the device is a "posterior, noncervical pedicle fixation system intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion." This describes a surgical implant used to treat structural issues in the spine.
  • Device Description: The device description details an "implant device made from a titanium alloy" consisting of screws, rods, set screws, tulip heads, and caps. This is consistent with a surgical implant.
  • Lack of IVD Characteristics: There is no mention of the device being used to examine specimens derived from the human body (like blood, urine, tissue, etc.) to provide information for diagnosis, monitoring, or screening. IVDs are typically used in laboratories or point-of-care settings for diagnostic purposes.

The TowerLOX Spinal System is a surgical implant used to stabilize the spine, not a diagnostic tool that analyzes biological samples.

N/A

Intended Use / Indications for Use

The TowerLOX Spinal System is a posterior, noncervical pedicle fixation system 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 including degenerative spondylolisthesis with objective evidence of neurologic impairment, fracture, dislocation, scoliosis, kyphosis, spinal tumor, pseudoarthrosis and failed previous fusion.

In addition, when used as a pedicle screw fixation system, the TowerLOX Spinal System is intended for skeletally mature patients with severe spondylolisthesis (Grades 3 and 4) of the fifth lumbar-first sacral, L5-S1 vertebra, who are receiving fusion by autogenous bone graft only, who are having the device attached to the lumbar and sacral spine (levels may be from L3 to the sacrum/ilium), who are having the device removed after the attainment of a solid fusion.

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

MNI, MNH

Device Description

The TowerLOX Pedicle Screw System is an implant device made from a titanium alloy TI 6AL4V-ELI. It is to be implanted from the posterior approach. The screws are available in diameters from 4.9-8.0mm and in lengths from 30-100mm. Rods are available in 5.5mm diameter, as either straight rods available in lengths from 30-500mm or pre-curved rods available in lengths from 30-120mm. The system includes a set screw, tulip heads, and a cap to complete the assembly of the implant. The system also includes all necessary instrumentation for a minimally invasive surgical technique

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

thoracic, lumbar and sacral spine, fifth lumbar-first sacral, L5-S1 vertebra, L3 to the sacrum/ilium

Indicated Patient Age Range

skeletally mature patients

Intended User / Care Setting

Not Found

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)

This Special 510(k) involved changes that did not alter the mechanical function of the system; so no additional performance testing was conducted.

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.

K111115, K120292, K103748, K042635, K092287, K121680, K061978

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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K122332 Page 1 of 2

OCT 1 6 2012

510(k) Summary according to 807.92(c) TowerLOX Pedicle Screw System

September 17, 2012 Dale Mitchell Submitter Contact: Captiva Spine 967 Alternate A1A #1 Jupiter, FL 33477 877-772-5571 866-318-3224 Rich Jansen, Pharm. D. Regulatory Contact: Silver Pine Consulting, LLC 612-281-5505 richj@s-pineconsulting.com TowerLOX Pedicle Screw System Trade Name: Product Class: Class II 888.3070 Pedicle Screw Spinal System Classification: Product Codes: MNI, MNH Panel Code: 87 Predicate Device(s): CapLOX II Pedicle Screw System (K111115, SE 9-13-11), (K120292, SE 4-13-12) Laguna Pedicle Screw System (K103748, SE 3-2-11) Denali Spinal System (K042635, SE 1-10-05)

Spherx Pedicle Screw System (K092287, SE 10-6-09)

Sextant/CD Horizon MIS System (K121680, SE 7-5-12) Array Spinal System (K061978, SE 8-11-06)

Reason for this Submission: This Special 510(k) involves several changes to the previously cleared CapLOX II System that allow for:

    1. Several dimensional changes :
    1. New instrumentation added to the set configuration .
    1. New surgical technique developed for set to incorporate instrumentation for minimally invasive surgical technique. :
      1. Rod design with tip feature that allows for minimally invasive delivery and control, and
      1. Add implant screw lengths now offering 60-100mm in 5mm increments on select diameters

Indications for Use/Intended Use: The TowerLOX Spinal System is a posterior, noncervical pedicle fixation system 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

" → :

. .

ﻧﺪ ،

Date:

1

sacral spine including degenerative spondylolisthesis with objective evidence of neurologic impairment, fracture, dislocation, scoliosis, kyphosis, spinal tumor, pseudoarthrosis and failed previous fusion.

In addition, when used as a pedicle screw fixation system, the TowerLOX Spinal System is intended for skeletally mature patients with severe spondylolisthesis (Grades 3 and 4) of the fifth lumbar-first sacral, L5-S1 vertebra, who are receiving fusion by autogenous bone graft only, who are having the device attached to the lumbar and sacral spine (levels may be from L3 to the sacrum/ilium), who are having the device removed after the attainment of a solid fusion.

Device Description: The TowerLOX Pedicle Screw System is an implant device made from a titanium alloy TI 6AL4V-ELI. It is to be implanted from the posterior approach. The screws are available in diameters from 4.9-8.0mm and in lengths from 30-100mm. Rods are available in 5.5mm diameter, as either straight rods available in lengths from 30-500mm or pre-curved rods available in lengths from 30-120mm. The system includes a set screw, tulip heads, and a cap to complete the assembly of the implant. The system also includes all necessary instrumentation for a minimally invasive surgical technique

Performance Testing: This Special 510(k) involved changes that did not alter the mechanical function of the system; so no additional performance testing was conducted.

Conclusion: Captiva Spine concludes that the changes to the system do not introduce any new risks and therefore, the system is Substantially Equivalent to the predicate device.

2

Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized eagle with three stripes forming its body and wings. The eagle is encircled by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" in a circular arrangement.

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

Captiva Spine % Silver Pine Consulting, LLC Rich Jansen, Pharm. D. Consultant 13540 Guild Avenue Apple Valley, Minnesota 55124

OCT 1 6 2012

Re: K122332

Trade/Device Name: TowerLOX Pedicle Screw System Regulation Number: 21 CFR 888.3070 Regulation Name: Pedicle screw spinal system Regulatory Class: Class II Product Code: MNI, MNH Dated: September 19, 2012 Received: September 20, 2012

Dear Dr. Jansen:

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

3

Page 2 - Rich Jansen, Pharm. D.

device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set 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 go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 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 Small Manufacturers, International and Consumer Assistance 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.

Sincerely yours,

Sincerely yours,

Mark N. Melkerson

Director Division of Surgical, Orthopedic and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

4

Captiva Spine 510(k)

Statement of Indications for Use

510(k) Number (if known): K122332___________________________________________________________________________________________________________________________________________

The TowerLOX Spinal System is a posterior, non-cervical pedicle fixation system 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 including degenerative spondylolisthesis with objective evidence of neurologic impairment, fracture, dislocation, scoliosis, kyphosis, spinal tumor, pseudoarthrosis and failed previous fusion.

In addition, when used as a pedicle screw fixation system, the TowerLOX Spinal System is intended for skeletally mature patients with severe spondylolisthesis (Grades 3 and 4) of the fifth lumbar-first sacral, L5-S1 vertebra, who are receiving fusion by autogenous bone graft only, who are having the device attached to the lumbar and sacral spine (levels may be from L3 to the sacrum/ilium), who are having the device removed after the attainment of a solid fusion.

Prescription Use V (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)

(Division Sign-Ofi) Division of Surgical. Orthopedic, and Restorative Devices

K122332 510(k) Number__