(90 days)
No
The description focuses on impedance sensing and real-time alerts based on changes in impedance, which is a direct measurement technique, not AI/ML. There is no mention of AI, ML, or related concepts like training data or complex algorithms.
No
The device is designed to provide feedback to the surgeon during pedicle screw insertion, indicating changes in impedance that may suggest contact with soft tissues or possible vertebral cortex perforation. It is a surgical aid for proper screw placement, not a device that directly treats a medical condition or restores a function.
Yes
The device provides "feedback to the surgeon via visual and audible alerts that indicate a change in impedance at the tip of the pedicle screw and may indicate contact of the tip with soft tissues and possible vertebral cortex perforation." This feedback is essentially a diagnosis or indication of the screw's position relative to the vertebral cortex. While it's used during a surgical procedure, its function is to detect and indicate a condition (perforation risk), which is a form of diagnosis.
No
The device description explicitly lists hardware components like the Electronic T-handle, Ratcheting Handle, and Pin (active stylet), and mentions electrical safety testing (IEC 60601-1), indicating it is a hardware-based medical device with potential software components for the alerts.
Based on the provided information, the DSG™ Zavation Screw System is not an In Vitro Diagnostic (IVD) device.
Here's why:
- IVD Definition: In Vitro Diagnostic devices are used to examine specimens taken from the human body (like blood, urine, or tissue) to provide information for diagnosis, monitoring, or screening.
- DSG™ Zavation Screw System Function: The DSG™ Zavation Screw System is a surgical tool used during a surgical procedure (pedicle screw insertion). It provides real-time feedback based on electrical impedance measurements within the patient's body to help guide the surgeon. It does not analyze samples taken from the body.
Therefore, the device's function and intended use clearly fall outside the scope of an In Vitro Diagnostic device.
N/A
Intended Use / Indications for Use
The DSG™ Zavation Screw System is indicated for use with Zavation pedicle screws during pedicle screw insertion to provide feedback to the surgeon via visual and audible alerts that indicate a change in impedance at the tip of the pedicle screw and may indicate contact of the tip with soft tissues and possible vertebral cortex perforation. The DSG™ Zavation Screw System is indicated for use in both open and percutaneous (MIS) surgical approaches to the spine, with options of direct insertion of the screw in bone or after a step of preparation of the pilot hole with sensor equipped instruments.
Product codes
HBG
Device Description
The DSG™ Zavation Screw System is a modification to the cleared DSG™ Threaded Drill System and consists of the DSG™ Electronic T-handle, Ratcheting Handle, DSG™ Pin (active stylet), and the previously cleared Zavation Spinal System (K153404). These components are purchased and shipped as a complete system from Zavation, with the DSG™ Threaded Drill System components and Zavation Spinal System components individually packaged. The complete system is provided with the modified instructions for use of the DSG™ Zavation Screw System.
All of the patient-contacting materials are categorized per FDA's guidance on ISO 10993-1 as externally communicating materials that are in contact with the body for a limited duration, and are unchanged from the prior clearance. Certain components of the device are single-use while others are re-usable; certain components are provided sterile while others are sterilized by the end user.
The device is intended for use by surgeons in a professional healthcare environment, and utilizes sensing technology to detect the impediately surrounding tissues while inserting pedicle screws either through a previously drilled pilot hole or directly into bone. The surgeon can either drill and/or tap the screw hole prior to inserting the pedicle screw, or can use the system to directly insert the screw into the bone without a pilot hole. As the screw is manually advanced into the bone, the distal sensor measures the electrical impedance of the immediately surrounding tissues. The device produces real-time visual and audible signals to indicate changes in impedance associated with possible vertebral perforation.
Mentions image processing
Not Found
Mentions AI, DNN, or ML
Not Found
Input Imaging Modality
Not Found
Anatomical Site
Spine
Indicated Patient Age Range
Not Found
Intended User / Care Setting
Surgeons in a professional healthcare environment
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)
Performance testing for the subject device consisted of simulated insertion testing and cadaver testing to establish that the DSG™ Zavation Screw System is as safe and as effective as the predicate device to which it is a modification. All tests were passed, demonstrating equivalent performance according to device specifications and thus supporting substantial equivalence.
No animal or clinical tests were performed in support of this premarket notification.
Test: Cadaver Testing; Test Method Summary: Cadaveric usability testing was performed to demonstrate the usability and placement accuracy of the device.; Results: Pass
Test: Mechanical Testing; Test Method Summary: Mechanical testing was performed to demonstrate the performance and integrity of the system in implanting pedicle screws without a pilot hole.; Results: Pass
Test: Biocompatibility; Test Method Summary: Performed in accordance with ISO-10993; Results: Pass
Test: Sterilization Validation; Test Method Summary: EtO sterilization cycle designed and validated per NF EN ISO 11737-2; Results: Pass
Test: Electrical Safety; Test Method Summary: Performed in accordance with IEC 60601-1; Results: Pass
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.
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.
Predetermined Change Control Plan (PCCP) - All Relevant Information
Not Found
§ 882.4300 Manual cranial drills, burrs, trephines, and their accessories
(a)
Identification. Manual cranial drills, burrs, trephines, and their accessories are bone cutting and drilling instruments that are used without a power source on a patient's skull.(b)
Classification. Class II (performance standards).
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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized caduceus symbol, which is a staff with two snakes coiled around it, and the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged in a circular pattern around the symbol. The caduceus is rendered in black, and the text is also in black.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
January 12, 2017
SpineGuard, S.A. % John Smith, MD, JD Partner Hogan Lovells U.S. LLP 555 Thirteenth Street NW Washington, DC 20004
Re: K162884
Trade/Device Name: SpineGuard DSG Zavation Screw System Regulation Number: 21 CFR 882.4300 Regulation Name: Manual Cranial Drills, Burrs, Trephines, and Their Accessories Regulatory Class: Class II Product Code: HBG Dated: October 14, 2016 Received: October 14, 2016
Dear Dr. Smith:
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 devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in
1
the quality systems (OS) 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/ResourcesforYou/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.
Michael J. Hoffmann -S
for Carlos L. Peña, PhD, MS Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
2
Indications for Use
510(k) Number (if known) K162884
Device Name SpineGuard DSG Zavation Screw System
Indications for Use (Describe)
The DSG™ Zavation Screw System is indicated for use with Zavation pedicle screws during pedicle screw insertion to provide feedback to the surgeon via visual and audible alerts that indicate a change in impedance at the tip of the pedicle screw and may indicate contact of the tip with soft tissues and possible vertebral cortex perforation. The DSG™ Zavation Screw System is indicated for use in both open and percutaneous (MIS) surgical approaches to the spine, with options of direct insertion of the screw in bone or after a step of preparation of the pilot hole with sensor equipped instruments.
| Type of Use (Select one or both, as applicable) | |
|---|---|
| Prescription Use (Part 21 CFR 801 Subpart D) | Over-The-Counter Use (21 CFR 801 Subpart C) |
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510(k) SUMMARY
SpineGuard, S.A.'s DSG™ Zavation Screw System
Sponsor
SpineGuard, S.A. 10 cours Louis Lumière Vincennes, France 94300 Phone: +33 1 45 18 45 19 Facsimile: +33 1 45 18 45 20 Contact Person: Stephane Bette Date Prepared: December 19, 2016
Name of Device: DSG™ Zavation Screw System
Common or Usual Name: Manual cranial drill and accessories
Classification Name: 21 C.F.R. § 882.4300 (Manual cranial drills, burrs, trephines, and their accessories)
Classification Panel: Neurology
Regulatory Class: Class II
Product Code: HBG
Predicate and Reference Devices
SpineGuard, S.A. DSG™ Threaded Drill System (K152747, Predicate)
Zavation Spinal System (K153404, Reference)
Device Description
The DSG™ Zavation Screw System is a modification to the cleared DSG™ Threaded Drill System and consists of the DSG™ Electronic T-handle, Ratcheting Handle, DSG™ Pin (active stylet), and the previously cleared Zavation Spinal System (K153404). These components are purchased and shipped as a complete system from Zavation, with the DSG™ Threaded Drill System components and Zavation Spinal System components individually packaged. The complete system is provided with the modified instructions for use of the DSG™ Zavation Screw System.
All of the patient-contacting materials are categorized per FDA's guidance on ISO 10993-1 as externally communicating materials that are in contact with the body for a limited duration, and are unchanged from the prior clearance. Certain components of the device are single-use while
4
others are re-usable; certain components are provided sterile while others are sterilized by the end user.
The device is intended for use by surgeons in a professional healthcare environment, and utilizes sensing technology to detect the impediately surrounding tissues while inserting pedicle screws either through a previously drilled pilot hole or directly into bone. The surgeon can either drill and/or tap the screw hole prior to inserting the pedicle screw, or can use the system to directly insert the screw into the bone without a pilot hole. As the screw is manually advanced into the bone, the distal sensor measures the electrical impedance of the immediately surrounding tissues. The device produces real-time visual and audible signals to indicate changes in impedance associated with possible vertebral perforation.
Intended Use / Indications for Use
The DSG™ Zavation Screw System is indicated for use with the Zavation Spinal System during pedicle screw insertion to provide feedback to the surgeon via visual and audible alerts that indicate a change in impedance at the tip of the pedicle screw and may indicate contact of the tip with soft tissues and possible vertebral cortex perforation. The DSG™ Zavation Screw System is indicated for use in both open and percutaneous (MIS) surgical approaches to the spine, with options of direct insertion of the screw in bone or after a step of preparation of the pilot hole with sensor equipped instruments.
Summary of Technological Characteristics
The subject and predicate devices function based on the same technological principles, including the sensing of tissue impedance in tissues surrounding the targeted treatment area. At a high level, both devices are based on the following same technological elements:
-
Both devices contain the DSG™ Electronic T-handle, Ratcheting Handle, and DSG™ Pin ● (active stylet). These components are unmodified from the predicate clearance (K152747).
The following technological differences exist between the subject and predicate devices: -
The subject device does not include the DSG™ Threaded Drill shaft or DSG™ Sleeve ● components, in order to facilitate use with the cleared Zavation Spinal System.
| | DSG™ Zavation Screw System
(subject device) | DSG™ Threaded Drill System
(K152747) |
|------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Intended Use
/ Indications
for Use | The DSG™ Zavation Screw System is
indicated for use with the Zavation
Spinal System during pedicle screw
insertion to provide feedback to the
surgeon via visual and audible alerts
that indicate a change in impedance
at the tip of the pedicle screw and
may indicate contact of the tip with
soft tissues and possible vertebral
cortex perforation. The DSG™
Zavation Screw System is indicated | The DSG™ Threaded Drill System is
intended to be used for the preparation
of pedicle screw holes. The DSG™
Threaded Drill System is indicated for
use during pedicle screw pilot hole
drilling to provide feedback to the
surgeon via visual and audible alerts that
indicate a change in impedance at the tip
of the probe and may indicate contact of
the tip with soft tissues and possible
vertebral cortex perforation. The DSG™ |
| | DSG™ Zavation Screw System
(subject device) | DSG™ Threaded Drill System
(K152747) |
| | for use in both open and
percutaneous (MIS) surgical
approaches to the spine, with options
of direct insertion of the screw in bone
or after a step of preparation of the
pilot hole with sensor equipped
instruments. | Threaded Drill System is indicated for
use in both open and percutaneous
(MIS) surgical approaches to the spine.
The DSG™ Threaded Drill System is
also indicated for use with fluoroscopic
guidance in percutaneous (MIS) surgical
approaches to the spine. |
| | | The DSG™ Threaded Drill System also
is specifically indicated for use in
intraoperative electromyographic
("EMG") surveillance to assist in the
location and evaluation of spinal nerves
during surgery of the spine, by
administration of low voltage electrical
energy to tissues and nerves at the
operative site, and EMG monitoring of
muscle groups associated with those
nerves. |
| Handle Shape | T-Handle with Ratchet | T-Handle with Ratchet |
| Components | DSG™ Electronic T-handle,
Ratcheting Handle, and DSG™ Pin
(active stylet) | DSG™ Electronic T-handle, Ratcheting
Handle, and DSG™ Pin (active stylet),
DSG™ Threaded Drill shaft and DSG™
Sleeve |
| Safety
Features | Device cannot be turned off until
battery exhausted. Prevents reuse of
device. | Device cannot be turned off until battery
exhausted. Prevents reuse of device. |
| Power Source | Lithium-Ion Battery | Lithium-Ion Battery |
| Sterility | Sterile/Non-sterile | Sterile/Non-sterile |
| Single Use or
Reusable | Single-use (DSG™ Electronic T-
handle and DSG™ Pin (active stylet))
Re-usable (Ratcheting Handle) | Single-use (DSG™ Electronic T-handle
and DSG™ Pin (active stylet))
Re-usable (Ratcheting Handle, DSG™
Threaded Drill shaft and DSG™ Sleeve) |
| Distal Shaft
Shape | Z-Direct Screw Driver shaft (K153404;
reference device) and DSG™ Pin | Straight (cannulated) and DSG™ Pin |
| Dimensions | DSG™ Pin: 373mm x 1.65mm | DSG™ Pin: 373mm x 1.65mm; 292mm
x 1.65mm
Threaded Drill: 1.7mm inner diameter
(hole) cannulated metal shaft with
flanges (threads) and cutting edges;
Thread outer diameters of 4.0, 5.5 and
8.0mm |
| | DSG™ Zavation Screw System ( subject device ) | DSG™ Threaded Drill System (K152747) |
| Circuit Board | Capacitors, Resistors and Diodes -
Firmware (programmable chip) on circuit board | Capacitors, Resistors and Diodes -
Firmware (programmable chip) on circuit board |
A table comparing the key features of the subject and predicate devices is provided below.
5
6
Performance Data
Performance testing for the subject device consisted of simulated insertion testing and cadaver testing to establish that the DSG™ Zavation Screw System is as safe and as effective as the predicate device to which it is a modification. All tests were passed, demonstrating equivalent performance according to device specifications and thus supporting substantial equivalence.
No animal or clinical tests were performed in support of this premarket notification.
Data supporting the labeling change that is the subject of this 510(k) notice is outlined below:
| Test | Test Method Summary | Results |
|---|---|---|
| Cadaver Testing | Cadaveric usability testing was performed to demonstrate the usability and placement accuracy of the device. | Pass |
| Mechanical Testing | Mechanical testing was performed to demonstrate the performance and integrity of the system in implanting pedicle screws without a pilot hole. | Pass |
| Biocompatibility | Performed in accordance with ISO-10993 | Pass |
| Sterilization Validation | EtO sterilization cycle designed and validated per NF EN ISO 11737-2 | Pass |
| Electrical Safety | Performed in accordance with IEC 60601-1 | Pass |
Like its predicate, the SpineGuard DSG™ Zavation Screw System complies with the following recognized standards:
- ASTM F138-13, Standard specification for wrought 18 chromium-14 nickel-2.5 molybdenum . stainless steel bar and wire for surgical implants (2013).
- . ASTM F899-12b, Standard specification for wrought stainless steel for surgical instruments (2012).
- . IEC 60601-1 Medical Electrical Equipment - Part 1: General requirements for basic safety and essential performance, incl. Amendment 1 (2007).
- . ISO 10993-5, Biological Evaluation of Medical Devices: Tests for in vitro cytotoxicity (2010).
- . ISO 10993-7, Biological evaluation of medical devices: Ethylene Oxide sterilization residuals (2008).
- ISO 10993-10, Biological Evaluation of Medical Devices: Tests for irritation and sensitization ● (2010).
- . ISO 10993-11, Biological Evaluation of Medical Devices: Tests for systemic toxicity (2009).
7
- . ISO 11607-1. Packaging for terminally sterilized medical devices: Requirements for materials. sterile barrier systems and packaging systems (2006).
- . ISO 11607-2, Packaging for terminally sterilized medical devices: Validation requirements for forming, sealing and assembly processes (2006).
- . ISO 11737-1, Sterilization of medical devices - Microbiological methods: Determination of a population of microorganisms on products (2006).
- . ISO 11737-2, Sterilization of medical devices - Microbiological methods: Tests of sterility performed in the definition, validation and maintenance of a sterilization process (2010).
- . ASTM D4169, Standard practice for performance testing of shipping containers and systems (2014).
- . ASTM F1980, Standard guide for accelerated aging of sterile medical device packages (2011).
- ISO 11135-1, Sterilization of health care products Ethylene oxide: Requirements for the . development, validation and routine control of a sterilization process for medical devices (2007).
Conclusions
The DSG™ Zavation Screw System is as safe and effective as the predicate DSG™ Threaded Drill System (K152747). The subject device has the same intended use, and very similar indications for use, technological characteristics and principles of operation, as its predicate device. The minor technological differences between the DSG™ Zavation Screw System and its predicate device raise no new issues of safety or effectiveness. In addition, performance data demonstrate that the DSG™ Zavation Screw System is as safe and effective as the predicate device. Thus, the DSG™ Zavation Screw System is substantially equivalent.