Who is the manufacturer of TECHFIT Diagnostic Models?

Techfit Digital Surgery, Inc. filed the 510(k) submission for TECHFIT Diagnostic Models (K222577).

What is the FDA product code for TECHFIT Diagnostic Models?

LLZ. It is classified under 21 CFR 892.2050 as a Class 2 device in the Radiology panel.

What is the regulatory pathway for TECHFIT Diagnostic Models?

510(k) clearance (submission type: Traditional).

Who can help prepare an FDA 510(k) submission like TECHFIT Diagnostic Models?

Innolitics — a medical-device software consultancy — provides regulatory and engineering support for FDA 510(k) submissions. See https://innolitics.com/services/510ks/ or contact https://innolitics.com/contact.

TECHFIT Diagnostic Models

K222577 · Techfit Digital Surgery, Inc. · LLZ · Jan 6, 2023 · Radiology

Device Facts

Record ID	K222577
Device Name	TECHFIT Diagnostic Models
Applicant	Techfit Digital Surgery, Inc.
Product Code	LLZ · Radiology
Decision Date	Jan 6, 2023
Decision	SESE
Submission Type	Traditional
Regulation	21 CFR 892.2050
Device Class	Class 2
Attributes	3rd-Party Reviewed

Intended Use

The TECHFIT Diagnostic Models are patient-specific devices intended to be used as a pre-operative planning tool for treatment in the field of maxillofacial surgery. The input data file (DICOM imaging information from a medical scanner file) is processed by commercial off-the-shelf software, and the result is an output data file that may then be provided as digital models or used as input to produce physical anatomic models using additive manufacturing. The physical replica can be used for diagnostic purposes in the field of, maxillofacial applications. TECHFIT Diagnostic Models should be used in conjunction with other diagnostic tools and expert clinical judgment. TECHFIT Diagnostic Models are not intended to enter the operating room

Device Story

Device generates patient-specific virtual and physical anatomic models for maxillofacial surgery planning. Input: patient CT scan data. Process: biomedical engineer uses COTS software (Mimics Medical) to segment anatomy and create 3D virtual models; surgeon reviews and approves design proposal; physical models produced via additive manufacturing (3D printing) using clear resin. Output: digital 3D models or physical anatomic replicas. Used in clinical setting (not OR) by surgeons for pre-operative planning, including assessing anatomic structures, resections, measurements, and implant sizing. Benefits: aids identification of pathologies and enables precise surgical intervention planning when used with other diagnostic tools.

Clinical Evidence

Bench testing only. Validation included 3D printing process characterization (IQ/OQ/PQ), dimensional accuracy testing (point-by-point comparison of original vs. printed models), packaging validation per ASTM D4169-16/ISTA 3A, and qualitative clinician review. Clinician feedback indicated models were significant for identifying pathologies and planning surgical interventions.

Technological Characteristics

Materials: Clear resin. Sensing/Actuation: None (image processing). Energy: N/A. Connectivity: N/A. Sterilization: Not specified. Software: Uses COTS software (Mimics Medical) for segmentation and 3D reconstruction. Form factor: Patient-specific 3D printed anatomic models.

Indications for Use

Indicated for use as a pre-operative planning tool for maxillofacial surgery. Intended for diagnostic purposes using patient-specific virtual or physical anatomic models derived from CT scan data.

Regulatory Classification

Identification

A medical image management and processing system is a device that provides one or more capabilities relating to the review and digital processing of medical images for the purposes of interpretation by a trained practitioner of disease detection, diagnosis, or patient management. The software components may provide advanced or complex image processing functions for image manipulation, enhancement, or quantification that are intended for use in the interpretation and analysis of medical images. Advanced image manipulation functions may include image segmentation, multimodality image registration, or 3D visualization. Complex quantitative functions may include semi-automated measurements or time-series measurements.

Special Controls

*Classification.* Class II (special controls; voluntary standards—Digital Imaging and Communications in Medicine (DICOM) Std., Joint Photographic Experts Group (JPEG) Std., Society of Motion Picture and Television Engineers (SMPTE) Test Pattern).

Predicate Devices

Mimics Medical (K183105)

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Submission Summary (Full Text)

{0}------------------------------------------------ Image /page/0/Picture/0 description: The image contains the logos of the Department of Health and Human Services and the Food and Drug Administration (FDA). The Department of Health and Human Services logo is on the left, and the FDA logo is on the right. The FDA logo includes the letters "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in blue text. TECHFIT Digital Surgery, Inc. % Prithul Bom Most Responsible Person Regulatory Technology Services, LLC 1000 Westgate Drive, Suite 510k SAINT PAUL MN 55114 Re: K222577 January 6, 2023 Trade/Device Name: TECHFIT Diagnostic Models Regulation Number: 21 CFR 892.2050 Regulation Name: Medical image management and processing system Regulatory Class: Class II Product Code: LLZ Dated: November 1, 2022 Received: November 2, 2022 Dear Prithul Bom: 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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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 {1}------------------------------------------------ 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4. Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050. 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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems. For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100). Sincerely, Jessica Lamb Jessica Lamb, Ph.D. Assistant Director Imaging Software Team DHT8B: Division of Radiological ImagingDevices and Electronic Products OHT8: Office of Radiological Health Office of Product Evaluation and Quality Center for Devices and Radiological Health Enclosure {2}------------------------------------------------ # Indications for Use 510(k) Number (if known) K222577 Device Name TECHFIT Diagnostic Models #### Indications for Use (Describe) The TECHFIT Diagnostic Models are patient-specific devices intended to be used as a pre-operative planning tool for treatment in the field of maxillofacial surgery. The input data file (DICOM imaging information from a medical scanner file) is processed by commercial off-the-shelf software, and the result is an output data file that may then be provided as digital models or used as input to produce physical anatomic models using additive manufacturing. The physical replica can be used for diagnostic purposes in the field of, maxillofacial applications. TECHFIT Diagnostic Models should be used in conjunction with other diagnostic tools and expert clinical judgment. TECHFIT Diagnostic Models are not intended to enter the operating room | Type of Use (Select one or both, as applicable) | |-------------------------------------------------| |-------------------------------------------------| X Prescription Use (Part 21 CFR 801 Subpart D) | Over-The-Counter Use (21 CFR 801 Subpart C) #### CONTINUE ON A SEPARATE PAGE IF NEEDED. This section applies only to requirements of the Paperwork Reduction Act of 1995. #### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.* The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to: > Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff(@fda.hhs.gov "An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number." {3}------------------------------------------------ Image /page/3/Picture/0 description: The image shows the logo for Techfit. The logo consists of a blue sphere with a smaller, gray, crescent-shaped object partially overlapping it. Below the sphere, the word "TECHFIT" is written in a simple, sans-serif font, with each letter in uppercase. ## 510(k) Summary K222577 # 21 CFR 807.92 2050 ### Submitter information: | Submitter | TECHFIT Digital Surgery Inc. 1511 Aviation Center Pkwy Suite 220H Daytona Beach, FL 32114 | |----------------|--------------------------------------------------------------------------------------------------------------------------| | Contact person | David García-Patiño Regulatory Affairs Specialist Phone: +57 604 322-33-75 Ext. 165 david.garcia@techfit.com.co | | Date prepared | January 6, 2023 | # Subject device information: | Trade name | TECHFIT Diagnostic Models | |------------------------------------------|------------------------------------------------| | Common or Usual name | Medical image management and processing system | | Classification name | System, Image Processing, Radiological | | Product code (classification regulation) | LLZ | | Regulation number | 892.2050 | ## Predicate device information: | Trade name | Materialise N.V. | |------------------------------------------|----------------------------------------| | 510(k) number | K183105 | | Common or Usual name | Mimics Medical | | Classification name | System, Image Processing, Radiological | | Product code (classification regulation) | LLZ | | Regulation number | 892.2050 | {4}------------------------------------------------ ## Device description TECHFIT Diagnostic Models are virtual and additive manufactured anatomic models intended for diagnostic use during maxillofacial surgery planning. The models are created from a CT scan of the patient's anatomy, which is segmented through Commercial-Off-The-Shelf (COTS) software and converted into virtual 3D models. The surgeon uses these 3D models to make the initial plan/diagnosis based on examination or physical measurement of the patient's anatomy, this includes planning anatomic structures movements (for example, maxilla and mandible movements for occlusion), the resections, measurement of anatomic distances (e.g., the facial symmetry), and determining fixation points and the size and shape of the implants if requested. These functions are those that the surgeon can perform, not functions that the subject device provides by itself. TECHFIT creates a design proposal for the case based on the information given by the medical professional and the process continues until the final design proposal is approved. Finally, the digital file can be used as an input to produce physical anatomic models through additive manufacturing. TECHFIT Diagnostic Models are intended for single use only. {5}------------------------------------------------ The TECHFIT Diagnostic Models are patient-specific devices intended to be used as a pre-operative planning tool for treatment in the field of maxillofacial surgery. The input data file (DICOM imaging information from a medical scanner file) is processed by commercial off-the-shelf Indications for Use software, and the result is an output data file that may then be provided as digital models or used as input to produce physical anatomic models using additive manufacturing. > The physical replica can be used for diagnostic purposes in field of, of, maxillofacial the the the > TECHFIT Diagnostic Models should be used in conjunction with other diagnostic tools and expert clinical judgment. > TECHFIT Diagnostic Models are not intended to enter the operating room ### Device design and manufacturing Starting from a patient's CT scan and dentition data (optional), a virtual model of the patient's anatomy is generated. Prior to the surgery, a biomedical engineer works along with the surgeon to define a pre-operative surgical plan based on virtual 3D models of the patient's anatomy. Based on the pre-operative plan, models are designed using medical CAD software. After the surgeon approves the pre-operative plan and device designs, the diagnostic models are produced through an additive manufacturing process #### Technological Characteristics & Substantial Equivalence Discussion The intended use of the subject device, TECHFIT Diagnostic Models, is the same as the predicate device, Mimics Medical (K183105). The design process for both the subject and the predicate device starts from a patient's CT scan, taken according to a specific CT scan protocol. {6}------------------------------------------------ #### Similarities to predicate The subject and the predicate device have the same intended use, the anatomic models are produced from the patient's CT scan and we use the same segmentation/3D reconstruction software to create 3D anatomic models Mimics Medical (K183105). ### Differences from predicate The differences between the subject and predicate device are that the anatomic models are created by TechFit versus the end user. {7}------------------------------------------------ A device comparison table of the subject and predicate device is provided in Table 1. | Characteristic | Subject device: TECHFIT Diagnostic models | Mimics Medical K183105 | |---------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Classification | 21 CFR 892.2050 | 21 CFR 892.2050 | | Class | Class II. | Class II. | | Product code | LLZ | LLZ | | Indications for Use | The TECHFIT Diagnostic Models are patient-specific devices intended to be used as a pre-operative planning tool for treatment in the field of maxillofacial surgery. The input data file (DICOM imaging information from a medical scanner file) is processed by commercial off- the-shelf software, and the result is an output data file that may then be provided as digital models or used as input to produce physical anatomic models using additive manufacturing. The physical replica can be used for diagnostic purposes in the field of, maxillofacial applications. TECHFIT Diagnostic Models should be used in conjunction with other diagnostic tools and expert clinical judgment. TECHFIT Diagnostic Models are not intended to enter the operating room. | Mimics Medical is intended for use as a software interface and image segmentation system for the transfer of medical imaging information to an output file. Mimics Medical is also intended for measuring and treatment planning. The Mimics Medical output can be used for the fabrication of physical replicas of the output file using traditional or additive manufacturing methods. The physical replica can be used for diagnostic purposes in the field of orthopedic, maxillofacial and cardiovascular applications. Mimics Medical should be used in conjunction with expert clinical judgement. | | Material(s) | Clear resin | Multiple | | Manufacturer | TECHFIT Digital Surgery | Materialise N.V. | Table 1. Substantial Equivalence Comparison. {8}------------------------------------------------ | Hardware Technologies | 3D Printing to produce physical output devices | 3D Printing to produce physical output devices | |------------------------------------|---------------------------------------------------|---------------------------------------------------| | Proprietary planning software | No, we use Mimics Medical (K183105) | Yes | | Patient-specific configuration? | Yes | Yes | | CT Scan | Yes | Yes | | Physician Interaction | Yes | Yes | # Non-clinical Performance Data A table with the summary of the performance data was provided in Table 2 | Test Performed | Description | Results | |--------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | 3D Printing process validation | A manufacturing process characterization was performed to validate that the manufacturing process can correctly print the TECHFIT Diagnostic Models. The process validation strategy included the Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ). | The acceptance criteria were met | | Dimensional Validation | The 3D printed devices were manufactured and scanned with CT scan. The 3D printed devices consisted of multiple anatomic models from different patients (mandibles and maxilla) as the worst- case to evaluate the accuracy. The original model and | All the measurements complied with the acceptance criterion | | | scanned model were digitally aligned and overlapped. Then, the dimensional error was estimated by comparing the difference between the overlapped images on a point-by-point basis. | | | Packaging Validation | The packaging system was subjected to simulated shipment following the Standard Practice for Performance Testing of Shipping Containers and Systems (ASTM D4169-16), and environmental conditioning as per ISTA 3A. | The acceptance criteria were met | | Diagnostic Qualitative Evaluation | A clinician review report was performed with the intention to evaluate the diagnostically significance of TECHFIT Diagnostic Models (TDMs) according to the clinical experience of maxillofacial surgeons | The interviewed surgeons deemed TECHFIT Diagnostic models a significant help when it comes to identifying different pathologies and plan a more precise surgical intervention when used in conjunction of other diagnostic tools. | | Fidelity Validation of detectable anatomical landmarks | A test was performed to validate the device's replicability of anatomical landmarks from educational anatomic models and maintain dimensional accuracy | All selected landmarks in the educational anatomic model were identified in the virtual models and the 3D printed models | # Table 2 Summary of data performance {9}------------------------------------------------ # Substantial Equivalence Conclusion Based on the indications for use, technological characteristic, and comparison to subject/predicate devices, the TECHFIT Diagnostic Models show to be substantially equivalent to the predicate device.