K Number
K021850
Device Name
SYNTHES (USA) 1.3 MM CRANIOFACIAL SCREWS
Manufacturer
Date Cleared
2002-06-10

(5 days)

Product Code
Regulation Number
872.4880
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
Synthes Craniofacial Screws are intended for selective trauma of the midface and craniofacial skeleton; craniofacial surgery; reconstructive procedures; and selective orthognathic surgery of the maxilla and chin.
Device Description
Synthes Craniofacial screws are available with either selftapping or self-tapping/self-drilling tips. They are offered in 1.3 mm standard diameter and are also available in a 1.7 mm Emergency diameter. The self-drilling 1.3 mm diameter screws are offered in two variations: cortex and cranial, with the cranial having a slightly greater core diameter and a modified thread profile. The self-drilling screws are offered in 3 -- 6 mm lengths and the self-tapping screws are offered in 3 - 18 mm lengths. The modified Synthes craniofacial screws are available in four variants: 1) 1.3 mm craniofacial self-tapping (3-18 mm lengths), 2) 1.3 mm craniofacial self-drilling (3-6 mm lengths), 3) 1.3 mm cranial self-drilling (3-5 mm lengths), 4) 1.7 mm emergency self-tapping screws (3-18 mm lengths). The new cranial screws have a slightly greater core diameter and a modified thread profile. All the new/ modified screws feature the StarDrive™ drive mechanism and are now made from titanium alloy. The new/modified 1.3 mm self-drilling screws have slightly larger core diameters than the design previously cleared: 0.95 mm (craniofacial) & 1.01 mm (cranial) versus 0.85 mm. The 1.3 mm craniofacial self-drilling screw is also being offered in a 3mm length. The 1.3 mm cranial selfdrilling screw also has a slightly modified thread profile to lower stress concentrations and increase torsional strength. The self-tapping screws are being offered in titanium alloy (TAN) and feature the StarDrive™ drive mechanism while the previously cleared self-tapping screws were manufactured from commercially pure (CP) titanium and utilized a cruciform drive mechanism.
More Information

Not Found

No
The device description focuses solely on the physical characteristics and performance of screws, with no mention of software, algorithms, or data processing.

Yes.
The device is intended for reconstructive procedures and selective orthognathic surgery, which are therapeutic medical interventions.

No

The device description indicates that the screws are used for surgical procedures like trauma repair and reconstructive procedures, which are treatments rather than diagnostic activities.

No

The device description clearly details physical hardware components (screws made of titanium alloy with specific dimensions, tips, and drive mechanisms) and performance testing related to mechanical properties (insertion torque, torsional strength). There is no mention of software as the primary or sole component.

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 Synthes Craniofacial Screws are for surgical procedures involving the midface and craniofacial skeleton, maxilla, and chin. This is a direct surgical intervention on the body.
  • Device Description: The description details the physical characteristics of screws used for fixation in bone.
  • 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 compatibility testing.

IVD devices are used outside the body to analyze samples. This device is implanted within the body for structural support.

N/A

Intended Use / Indications for Use

Synthes Craniofacial Screws are intended for selective trauma of the midface and craniofacial skeleton; craniofacial surgery; reconstructive procedures; and selective orthognathic surgery of the maxilla and chin.

Product codes

DZL

Device Description

Synthes Craniofacial screws are available with either selftapping or self-tapping/self-drilling tips. They are offered in 1.3 mm standard diameter and are also available in a 1.7 mm Emergency diameter. The self-drilling 1.3 mm diameter screws are offered in two variations: cortex and cranial, with the cranial having a slightly greater core diameter and a modified thread profile. The self-drilling screws are offered in 3 -- 6 mm lengths and the self-tapping screws are offered in 3 - 18 mm lengths.

The modified Synthes craniofacial screws are available in four variants:

    1. 1.3 mm craniofacial self-tapping (3-18 mm lengths)
    1. 1.3 mm craniofacial self-drilling (3-6 mm lengths)
    1. 1.3 mm cranial self-drilling (3-5 mm lengths)
    1. 1.7 mm emergency self-tapping screws (3-18 mm lengths)

The new cranial screws have a slightly greater core diameter and a modified thread profile. All the new/ modified screws feature the StarDrive™ drive mechanism and are now made from titanium alloy.

The new/modified 1.3 mm self-drilling screws have slightly larger core diameters than the design previously cleared: 0.95 mm (craniofacial) & 1.01 mm (cranial) versus 0.85 mm. The 1.3 mm craniofacial self-drilling screw is also being offered in a 3mm length. The 1.3 mm cranial selfdrilling screw also has a slightly modified thread profile to lower stress concentrations and increase torsional strength. The self-tapping screws are being offered in titanium alloy (TAN) and feature the StarDrive™ drive mechanism while the previously cleared self-tapping screws were manufactured from commercially pure (CP) titanium and utilized a cruciform drive mechanism.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

midface and craniofacial skeleton; maxilla and chin.

Indicated Patient Age Range

Not Found

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

The risk analysis method used to assess the impact of modifications to the 1.3 mm Craniofacial Screws is the Hazards Analysis. Using the Hazards Analysis for the 1.3 mm Self-Drilling Screw as a basis, the revised risk analysis reflects potential risks of the screws, as modified. Potential risks of the 1.3 mm screws have been identified and verification and validation actions have concluded that the potential risks are effectively managed by the stated controls.

Results of verification testing:

  • Insertion torque: MT-98-096 & MT-01-373 (Driving torque of metallic bone screws). Acceptance Criteria: Insertion torque of modified screw design to be equal to or less than predicate. Pass/Fail Results: PASS – Modified screw requires approximately 3.5% less insertion torque.
  • Maximum torque: MT-98-096 & MT-01-373 (Metallic bone screw torsional properties test). Acceptance Criteria: Maximum torque for the modified screw design to be equal to or greater than the predicate. Pass/Fail Results: PASS – Modified screw showed a 67% increase in torsional strength compared to predicate.

Key Metrics

Not Found

Predicate Device(s)

K983485

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 872.4880 Intraosseous fixation screw or wire.

(a)
Identification. An intraosseous fixation screw or wire is a metal device intended to be inserted into fractured jaw bone segments to prevent their movement.(b)
Classification. Class II.

0

6-10-02

1021850

3. 510(k) Summary:

510(k) SUMMARY

Submitter:

Company Contact:

Name of the Device:

Classification:

Common or Usual Name:

Predicate (unmodified) Device:

Device Description:

Intended Use:

Material:

1690 Russell Road Paoli, PA 19301

Synthes (USA)

Matthew M. Hull (610) 647-9700

Synthes (USA) 1.3 mm Craniofacial Screws

Class II, 21 CFR 872.4880

Screw, Fixation, Intraosseous

Synthes 1.3 mm Self-Drilling Screws, K983485

Synthes Craniofacial screws are available with either selftapping or self-tapping/self-drilling tips. They are offered in 1.3 mm standard diameter and are also available in a 1.7 mm Emergency diameter. The self-drilling 1.3 mm diameter screws are offered in two variations: cortex and cranial, with the cranial having a slightly greater core diameter and a modified thread profile. The self-drilling screws are offered in 3 -- 6 mm lengths and the self-tapping screws are offered in 3 - 18 mm lengths.

Synthes Craniofacial Screws are intended for selective trauma of the midface and craniofacial skeleton; craniofacial surgery; reconstructive procedures; and selective orthognathic surgery of the maxilla and chin.

Titanium Alloy

Synthes (USA) CONFIDENTIAL Special 510(k): Synthes 1.3 mm Craniofacial Screws

120

Image /page/0/Picture/24 description: The image shows a sequence of numbers, specifically "00005". The numbers are printed in a bold, sans-serif font. The digits are evenly spaced and aligned horizontally.

1

Special 510(k) Device Modification

4. Device Name:

Synthes 1.3 mm Craniofacial Screws

5. Establishment Registration:

Synthes is registered with the Device Registration and Listing Branch of the U.S. Food and Drug Administration (FDA). This device is manufactured by Synthes (USA), 1101 Synthes Avenue, Monument, CO (FDA Registration No. 1719045).

6. Classification Information:

The classification of the Synthes 1.3 mm Craniofacial Screw is Class II, as per the Code of Federal Regulations, Title 21, Sections 872.4880: "Screw, Fixation, Intraosseous".

7. Information Related to Performance Standards and Special Controls:

These screws will be manufactured from titanium alloy (Ti-6A17Nb) meeting ASTM F-1295. Synthes is not aware of any performance standards or special controls established to date.

8. Device Description and Comparison:

The modified Synthes craniofacial screws are available in four variants:

    1. 1.3 mm craniofacial self-tapping (3-18 mm lengths)
    1. 1.3 mm craniofacial self-drilling (3-6 mm lengths)
    1. 1.3 mm cranial self-drilling (3-5 mm lengths)
    1. 1.7 mm emergency self-tapping screws (3-18 mm lengths)

The new cranial screws have a slightly greater core diameter and a modified thread profile. All the new/ modified screws feature the StarDrive™ drive mechanism and are now made from titanium alloy.

The new/modified 1.3 mm self-drilling screws have slightly larger core diameters than the design previously cleared: 0.95 mm (craniofacial) & 1.01 mm (cranial) versus 0.85 mm. The 1.3 mm craniofacial self-drilling screw is also being offered in a 3mm length. The 1.3 mm cranial selfdrilling screw also has a slightly modified thread profile to lower stress concentrations and increase torsional strength. The self-tapping screws are being offered in titanium alloy (TAN) and feature the StarDrive™ drive mechanism while the previously cleared self-tapping screws were manufactured from commercially pure (CP) titanium and utilized a cruciform drive mechanism.

Confidential engineering drawings of the new screws can be found in Attachment 1(a). Drawings of the previously cleared screws can be found in Attachment 1(b). A table describing the modifications made in the Synthes 1.3 mm Craniofacial Screws appears in Attachment 2.

Synthes (USA) CONFIDENTIAL Special 510(k): Synthes 1.3 mm Craniofacial Screws

.121

2

9. Substantial Equivalence:

The new/modified Synthes Craniofacial Screws have the following similarities to the previously cleared screws:

  • All have the same indications for use l
  • 제 All can be used with Synthes Craniofacial and Cranial Plates and Meshes
  • All new screws are manufactured from titanium alloy as was the previously cleared 1.3 mm 모 self-drilling screw
  • All new screws utilize the StarDrive™ drive mechanism that was utilized by the previously ■ cleared self-drilling screw

The new/modified Synthes 1.3 mm Craniofacial and Cranial Screws have indications that are identical to the previously cleared screws. They are also similar in design, materials and function to the previously cleared device, and therefore, in our opinion, this device is substantially equivalent to the predicate device.

10. Proposed Labeling and Intended Use:

Proposed labels and labeling can be found in Attachment 3. The intended use of the Synthes 1.3 mm Craniofacial Screws is unchanged.

11. Summary of Design Control Activities:

Synthes develops all products in compliance with the Quality System Regulations (21 CFR Part 820). This product was designed and developed according to standard operating procedures and documentation. The risk analysis for this product was developed according to these procedures.

The risk analysis method used to assess the impact of modifications to the 1.3 mm Craniofacial Screws is the Hazards Analysis. Using the Hazards Analysis for the 1.3 mm Self-Drilling Screw as a basis, the revised risk analysis reflects potential risks of the screws, as modified, (see Attachment 4). Potential risks of the 1.3 mm screws have been identified and verification and validation actions have concluded that the potential risks are effectively managed by the stated controls.

Results of verification testing appear in Table 1 below, which demonstrate that acceptance criteria have been met. Final design review has been conducted and design transfer has taken place in accordance with Quality System procedures.

Synthes (USA) CONFIDENTIAL Special 510(k): Synthes 1.3 mm Craniofacial Screws

122

3

ConcernText PerformedAcceptance CriteriaPass/Fail Results
Insertion torqueMT-98-096 & MT-01-373
(Driving torque of metallic bone screws)Insertion torque of modified screw design to be equal to or less than predicate.PASS – Modified screw requires approximately 3.5% less insertion torque.
Maximum torqueMT-98-096 & MT-01-373
(Metallic bone screw torsional properties test)Maximum torque for the modified screw design to be equal to or greater than the predicate.PASS – Modified screw showed a 67% increase in torsional strength compared to predicate.

The Declaration of Conformity with Design Controls is located in Attachment 5.

12. Confidentiality Statement

... ..

We consider our intent to market this device to be confidential commercial information. Synthes has not disclosed the intent to market this product to others who are not collaborators and consultants. We have taken precautions to protect the confidentiality of our intent.

Synthes (USA) CONFIDENTIAL Special 510(k): Synthes 1.3 mm Craniofacial Screws

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

123

000008

  1. 11

4

Image /page/4/Picture/1 description: The image shows the seal of the Department of Health & Human Services - USA. The seal is circular and contains the department's name around the perimeter. In the center of the seal is an emblem featuring a stylized eagle with three human profiles incorporated into its design. The image is black and white.

JUN 1 0 2002

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

Mr. Matthew M. Hull Senior Regulatory Affairs Associate Synthes, (USA) 1690 Russell Road Paoli, Pennsylvania 19301

Re: K021850

Trade/Device Name: Synthes (USA) 1.3 MM Craniofacial Screws · Regulation Number: 872.4880 Regulation Name: Intraosseous Fixation Screw or Wire Regulatory Class: II Product Code: DZL Dated: May31, 2002 Received: June 5, 2002

Dear Mr. Hull:

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.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such 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.

5

Page 2 - Mr. Hull

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); 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.

This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 21 CFR Part 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4613. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.qov/cdrh/dsma/dsmamain.html

Sincerely yours,

Timothy A. Ulatowski

Timoth Ulatowski Director Division of Dental, Infection Control and General Hospital Devices Office of Device Evaluation Center for Devices and

Radiological Health

Enclosure

6

Indications for Use 2.

Special 510(k) Device Modification

INTENDED USE STATEMENT

510(k) Number (if known):

Device Name:

Indications

  • القرآن
  • القرآن - القرآن - القرآن - القرآن - القرآن - القرآن - القرآن - القرآن - القرآن - القرآن - القرآن - القرآن - القرآن - القرآن - القرآن - القرآن - القرآن - القرآن -

K021850

Synthes 1.3 mm Craniofacial Screws

Synthes Craniofacial Screws are intended for selective
Synthes Cranios and supportuniations informations Synthes Craniolacial Screws are facial skeleton;
trauma of the midface and craniofacial skeleton; trauma of the midiace and crainoracive procedures; and craniofacial surgery; reconstructive processions. "
selective orthognathic surgery of the maxilla and chin.

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

Concurrence of CDRH, Office of Device Evaluation (ODE) Over-the-Counter Use__________________________________________________________________________________________________________________________________________________________ OR Prescription Use (Per 21 CFR 801.109) 11/20m (Division Sign-Off) (Division Sign-On)
Division of Dental, Infection Control,
Division of Dental, Infection Boxines and General Hospital Beyer ្យូទា Number

CONFIDENTIAL Synthes (USA) Synthes (USA)
Special 510(k): Synthes 1,3 mm Craniofacial Screws