T2 PLUS is digital X-Ray imaging equipment for dental professionals that converts X-Ray signals into digital signals to acquire 2D images and reconstruct them into 3D images, using Panoramic (PANO), Cephalometric (CEPH), and Computed Tomography (CT) technology for the diagnosis of the anatomical structure of the oral and maxillofacial area. T2-CS-P provides all three modes, whereas T2-C-P provides the first two modes and excludes the CEPH mode. The devices are operated and used by physicians, dentist and X-Ray technicians. Use is contraindicated for patients with a head circumference of less than 48 cm or those aged 2 years or younger.
Device Story
T2 Plus is a dental X-ray imaging system (CT, Panoramic, Cephalometric) used by dentists, physicians, and technicians in clinical settings. The device consists of an X-ray generator, controller, sensor, and PC with imaging software. During operation, the system rotates 360 degrees around the patient; the generator emits X-rays that penetrate the subject; the sensor captures the signals and converts them into digital imagery. The system reconstructs 3D volumes or 2D images from these signals. Output is displayed on a PC via 2D/3D viewing programs, allowing clinicians to visualize oral/maxillofacial structures for diagnostic purposes. The device benefits patients by providing high-quality radiological images for dental and orthodontic treatment planning.
Clinical Evidence
No clinical studies submitted. Bench testing included software verification/validation, electrical safety (IEC 60601-1), and EMC (IEC 60601-1-2). Comparative image quality assessment performed on 31 cases (10 CT, 10 Ceph, 11 Pano) comparing subject and predicate devices; radiologists confirmed identical diagnostic quality scores.
Indicated for dental professionals to acquire 2D/3D X-ray images (Panoramic, Cephalometric, CT) for diagnosis of oral and maxillofacial anatomical structures. Contraindicated for patients with head circumference <48 cm or age ≤2 years.
Regulatory Classification
Identification
A computed tomography x-ray system is a diagnostic x-ray system intended to produce cross-sectional images of the body by computer reconstruction of x-ray transmission data from the same axial plane taken at different angles. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.
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Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left, there is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
September 6, 2024
Osstem Implant Co., Ltd. % Peter Lee QA/RA Manager Hiossen Inc. 85 Ben Fairless Dr. FAIRLESS HILLS, PA 19030
Re: K233806
Trade/Device Name: T2 Plus Regulation Number: 21 CFR 892.1750 Regulation Name: Computed Tomography X-Ray System Regulatory Class: Class II Product Code: OAS Dated: October 17, 2023 Received: November 29, 2023
Dear Peter Lee:
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 (the 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 available 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.
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Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30. Design controls; 21 CFR 820.90. Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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 of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 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 Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-device-advicecomprehensive-regulatory-assistance/unique-device-identification-system-udi-system.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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 mediation-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-regulatory
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assistance/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,
Lu Jiang
Lu Jiang, Ph.D. Assistant Director Diagnostic X-Ray Systems Team DHT8B: Division of Radiological Imaging Devices and Electronic Products OHT8: Office of Radiological Health Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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### Indications for Use
Submission Number (if known)
K233806
Device Name
T2 Plus
Indications for Use (Describe)
T2 PLUS is digital X-Ray imaging equipment for dental professionals that converts X-Ray signals into digital signals to acquire 2D images and reconstruct them into 3D images, using Panoramic (PANO), Cephalometric (CEPH), and Computed Tomography (CT) technology for the diagnosis of the anatomical structure of the oral and maxillofacial area. T2-CS-P provides all three modes, whereas T2-C-P provides the first two modes and excludes the CEPH mode. The devices are operated and used by physicians, dentist and X-Ray technicians.
Use is contraindicated for patients with a head circumference of less than 48 cm or those aged 2 years or younger.
Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D)
er-The-Counter Use (21 CFR 801 Subpart C)
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Image /page/4/Picture/1 description: The image shows the logo for Osstem Implant. The logo is orange and features the word "OSSTEM" in a bold, sans-serif font. Below the word "OSSTEM" is the word "IMPLANT" in a smaller, italicized font. The logo is simple and modern, and it is likely used to represent a company that manufactures or sells dental implants.
B-dong, 51, Mayu-ro 238beon-gil, Siheung-si, Gyeonggi-do, 15079, Republic of Korea 1: +82 70 4626 0782 Fax: +82 70 4015 0508 www.osstem.com
### 510(k) Summary
### Date: August 05, 2024
### 1. Company and Correspondent making the submission
| - Submitter's Name | : Osstem Implant Co., Ltd. |
|------------------------|-------------------------------------------------------------------------------------------------|
| - Address | : 2 Floor, B-dong, 51, Mayu-ro 238beon-gil, Siheung-si<br>Gyeonggi-do, 15079, Republic of Korea |
| - Contact | : Mr. Jinsan Kim |
| - Phone | : +82-70-4871-8968 |
| - Correspondent's Name | : Hiossen Inc. |
| - Address | : 85 Ben Fairless Dr. Fairless Hills, PA 19030 |
| - Contact | : Mr. Peter Lee |
| - Phone | : +1-267-759-7031 |
### 2. Proposed Device
| - | Trade or (Proprietary) Name | : T2 Plus |
|---|-----------------------------|------------------------------------|
| - | Model | : T2-C-P, T2-CS-P |
| - | Classification Name | : Computed tomography x-ray system |
| - | Regulation Number | : 21CFR892.1750 |
| - | Device Classification | : Class II |
| - | Classification Product Code | : OAS |
| - | Clearance | : K233806 |
### 3. Predicated Device
Primary Predicate -T2-CS, T2-C, Osstem Implant Co., Ltd. (K212303)
### 4. Description
T2 PLUS is a digital X-ray CT, panoramic, and Cephalo imaging system device composed of X-ray generator, X-ray controller, X-ray supporter, image processing unit (sensor), PC, and software. The apparatus attached to the equipment column is a structure that can be rotated 360 by the system control unit. This system control unit actuates the motor control, X-ray generator, and image processing unit (sensor). The height controlling unit controls the column and adjusts the height of the equipment. The X-ray generator and image processing unit (sensor) are attached to the rotating apparatus. When the rotating apparatus starts the rotation, X-ray is irradiated from the Xray generator (generating unit). This X-ray irradiation penetrates the subject and reaches
{5}------------------------------------------------
Image /page/5/Picture/0 description: The image shows the logo for Osstem Implant. The logo is in orange and features the word "OSSTEM" in a stylized font. Below the word "OSSTEM" is the word "IMPLANT" in a smaller, sans-serif font. The logo is simple and modern, and the orange color is eye-catching.
2 Floor, B-dong, 51, Mayu-ro 238beon-gil, Siheung-si, Gyeonggi-do, 15079, Republic of Korea Tel: +82 70 4626 0782 Fax: +82 70 4015 0508 www.osstem.com
the image processing unit (sensor), and then is converted into electric signals to secure imagery information. Inside the imaging section of the image processing unit (sensor), real time X-ray input is converted into electric signals and consecutively combined, resulting in imagery information. The combined panoramic imagery information is then sent to the PC and saved in patient management software
#### Proposed Devices Predicated Devices Remark Device Name T2 Plus T2-CS, T2-C Different 510(k) No. K233806 K212303 Different Manufacturer Osstem Implant Co., Ltd. Osstem Implant Co., Ltd. Same T2 PLUS is digital X-Ray T2 is digital X-Ray imaging imaging equipment for equipment for dental dental professionals that professionals that convert Xconvert X-Ray signals into Ray signals into digital digital signals to acquire 2D signals to acquire 2D images images and reconstruct them and reconstruct them into 3D into 3D images, using images, using Panoramic Panoramic (Pano), (Pano), Cephalometric Cephalometric (Ceph), and (Ceph), and Computed Computed Tomography Tomography (CT) (CT) technology for the technology for the diagnosis diagnosis of the anatomical of the anatomical structure of Similar structure of the oral and the oral and maxillofacial (More maxillofacial area. area. added Indications for Use explanation T2-CS-P provides all three of the modes, whereas T2-C-P indication provides the first two modes for use) and excludes the CEPH mode. The devices are operated and used by physicians, dentist and X-Ray technicians. Use is contraindicated for patients with a head circumference of less than 48 cm or those aged 2 years or younger. Panoramic, cephalometric Panoramic, cephalometric Perfomance Specification Same and computed tomography and computed tomography 100-240 VAC 100-240 VAC Input Voltage Same Similar (included within Tube Voltage 60-95 KV 60-95 kV
#### Substantial Equivalence Matrix 5.
range of predicated product)
{6}------------------------------------------------
Image /page/6/Picture/0 description: The image shows the logo for Osstem Implant. The logo is orange and features the word "OSSTEM" in a stylized font. Below the word "OSSTEM" is the word "IMPLANT" in a smaller, sans-serif font. The logo is simple and modern.
Ossterm Implant Co., Ltd..
2 Floor, B-dong, 51, Mayu-ro 238beon-gil, Sibeungsi, Gyeongsi-do, 15079, Republic of Korea
Tel: +82 70 4626 0782 Fax: +82 70 4015 0508 www.osstem.c
| Tube Current | | 1-11 mA | 5-11mA | Similar<br>(included<br>within<br>range of<br>predicated<br>product) |
|-----------------------------|------------------------|-----------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|----------------------------------------------------------------------|
| Focal Spot Size | | 0.5mm | 0.5 mm | Same |
| Exposure Time | | Max. 22s | Max. 22 s | Same |
| 2D Image Viewing Program | | Model Name: 2D02 | Model Name: 2D02 | Same |
| 3D Image Viewing Program | | Model Name: 3D02 | Model Name: 3D02 | Same |
| Anatomical Sites | | Maxillofacial | Maxillofacial | Same |
| | Computed<br>Tomography | 1515DXT<br>EXPD1616P | 1515DXT<br>SEN1 | Similar<br>(included<br>within<br>range of<br>predicated<br>product) |
| Image Sensor | Panoramic | 1515DXT<br>EXPD1616P | 1515DXT<br>SEN1 | Similar<br>(included<br>within<br>range of<br>predicated<br>product) |
| | Cephalometric | XID-C24DC | XID-C24DC | Same |
| Size of Imaging Volume (cm) | | 1515DXT : Max. 15x9<br>EXPD1616P : Max 15x9<br>(Stiching Mode : Max 15 X<br>15) | 1515DXT : Max. 15x9<br>SEN1 : Max 15x10<br>(Stiching Mode : Max 15 X<br>15) | Similar<br>(included<br>within<br>range of<br>predicated<br>product) |
| Pixel | Computed<br>Tomography | 1515DXT :<br>- 3.94 lp/mm<br>- 1.97 lp/mm<br>EXPD1616P :<br>- 5.1 lp/mm<br>- 2.55 lp/mm | 1515DXT :<br>- 3.94 lp/mm<br>- 1.97 lp/mm<br>SEN1 :<br>- 4.0 lp/mm<br>- 2.0 lp/mm | Similar<br>(included<br>within<br>range of<br>predicated<br>product) |
| Resolution | Panoramic | 1515DXT : 3.94 lp/mm<br>EXPD1616P : 5.1 lp/mm | 1515DXT : 3.94 lp/mm<br>SEN1 : 4.0 lp/mm | Similar<br>(included<br>within<br>range of<br>predicated<br>product) |
| | Cephalometric | XID-C24DC : 5.0 lp/mm | XID-C24DC : 5.0 lp/mm | Same |
| Pixel Size | Computed<br>Tomography | 1515DXT :<br>- 127 μm * 127 μm<br>- 254 μm * 254 μm<br>EXPD1616P :<br>- 98 μm * 98 μm | 1515DXT :<br>- 127 μm * 127 μm<br>- 254 μm * 254 μm<br>SEN1 :<br>- 125 μm * 125 μm | Similar<br>(included<br>within<br>range of<br>predicated<br>product) |
| | | | | Similar |
| | | 1515DXT : | 1515DXT : | (included |
| | | - 127 μm * 127 μm | - 127 μm * 127 μm | within |
| | Panoramic | EXPD1616P : | SEN1 : | range of |
| | | - 98 μm * 98 μm | - 125 μm * 125 μm | predicated |
| | | | | product) |
| | | XID-C24DC | XID-C24DC | |
| | Cephalometric | - 100 μm * 100 μm | - 100 μm * 100 μm | Same |
| | | [CT] | | |
| | | - 1515DXT : 146 x 146 mm | [CT] | |
| | | - EXPD1616P : | - 1515DXT : 146 x 146 mm | Similar |
| | | 159.5 x 147 mm | - SEN1 : 160 x 128 mm | (included |
| | | [Pano] | [Pano] | within |
| Active Area | | - 1515DXT : 146 x 8.13 mm | - 1515DXT : 146 x 8.13 mm | range of |
| | | - EXPD1616P : | - SEN1 : 160 x 8 mm | predicated |
| | | 159.5 x 7.8 mm | [Ceph] | product) |
| | | [Ceph] | - 1.8 x 150 mm | |
| | | - 240 x 4.8 mm | | |
| | | Condition: 0.5 lp/mm | Condition: 0.5 lp/mm | Similar |
| | | [1616P] | [Sen1] | (included |
| DQE | | 76% | 71% | within |
| | | [1515DXT] | [1515DXT] | range of |
| | | 64% | 64% | predicated |
| | | | | product) |
| | | Condition: 1 lp/mm | Condition: 1 lp/mm | Similar |
| | | [1616P] | [Sen1] | (included |
| MTF | | 64% | 64% | within |
| | | [1515DXT] | [1515DXT] | range of |
| | | 56% | 56% | predicated |
| | | | | product) |
| | | The proposed devices and the predicated devices are made with same | | |
| | | indications for use, performance, materials, and safety characteristics. | | |
| | | | | |
| | | Compared to the predicated devices, the proposed devices have different | | |
| | | tube voltage, tube current, size of image volume, Pixel Resolution, Pixel | | |
| | | | Size and Active Area. Most of the differences are all within the scope of | |
| S.E. | | | the predicated device except for pixel size of computed tomography. The | |
| | | | pixel size of computed tomography concerning sensor has the same with | |
| | | | predicated deivce and larger pixel output (15 x 15) is possible by the built- | |
| | | in stiching mode of software. | | |
| | | | Therefore, we stated that proposed device(T2-CS-P, T2-C-P) are | |
| | | | substantially equivalent to the predicated devices (T2-CS, T2-C) cleared in | |
| | | K212303. | | |
| | | | | |
{7}------------------------------------------------
Image /page/7/Picture/0 description: The image shows the logo for Osstem Implant. The logo is orange and features the word "OSSTEM" in a stylized font. Below the word "OSSTEM" is the word "IMPLANT" in a smaller, sans-serif font. The logo is simple and modern.
2 Floor, B-dong, 51, Mayu-ro 238beon-gil, Siheung-si, Gyeonggi-do, 15079, Republic of Korea
Tel: +82 70 4626 0782 Fax: +82 70 4015 0508 www.osstem.com
{8}------------------------------------------------
Image /page/8/Picture/0 description: The image contains the logo for Osstem Implant. The logo is orange and features the word "OSSTEM" in a stylized font with a registered trademark symbol. Below the word "OSSTEM" is the word "IMPLANT" in a smaller, sans-serif font. The logo is simple and clean, with a focus on the company name.
2 Floor, B-dong, 51, Mayu-ro 238beon-gil, Siheung-si, Gyeonggi-do, 15079, Republic of Korea
Tel: +82 70 4626 0782 Fax: +82 70 4015 0508 www.osstem.com
### 6. Apllied Standards
| Standard<br>Number | Standard Name |
|--------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ISO 13485:2016 | Medical devices - Quality management systems - Requirements for regulatory purposes |
| IEC 60601-1:<br>2005/AMD1:2012 | Medical electrical equipment - Part 1: General requirements for basic safety and essential<br>performance |
| EN 60601-1-2: 2015 | Medical electrical equipment - Part 1-2: General requirements for safety and essential<br>performance - Collateral standard: Electromagnetic compatibility - Requirements and tests |
| IEC 60601-1-3:2008/AMD1<br>2013 | Medical electromagnetic equipment - Part 1-3: General requirements for basic safety and<br>essential performance - Collateral Standard: Radiation protection in diagnostic X-ray<br>equipment |
| IEC 60601-2-<br>63:2012+A1:2017 | Medical electrical equipment - Part 2-63: Particular requirements for the basic safety and<br>essential performance of dental extra-oral X-ray equipment |
| IEC 60825-1:2014 | Safety of laser products - Part 1: Equipment classification and requirements |
| IEC 62304: 2006/AMD1 2015 | Medical device software - Software life cycle processes |
| IEC 60601-1-6: 2010+AMD1:<br>2013<br>IEC 62366-1: 2015 | Medical electrical equipment - Part 1-6: General requirements for basic safety and essential<br>performance - Collateral standard: Usability Medical devices - Application of usability<br>engineering to medical devices |
| ISO 15223-1:2021 | Medical Device-Symbols to be used with medical device label, labelling and information to be<br>supplied - Part 1: General requirements |
| ISO 20417:2021 | Medical devices - Information to be supplied by the manufacturer |
| EN ISO 14971:2019 | Medical devices - Application of risk management to medical devices |
| ISO TR 24971:2020 | Medical devices - Guidance on the application of ISO 14971 |
| IEC 61223-3-4:2000 | Evaluation and routine testing in medical imaging departments - Part 3-4: Acceptance tests -<br>Imaging performance of dental X-ray equipment |
| IEC 61223-3-5:2019 | Evaluation and routine testing in medical imaging departments - Part 3-5: Acceptance and<br>constancy tests - Imaging performance of computed tomography X-ray equipment |
| ISTA 3A:2018 | Packaged Products for Parcel Delivery System Shipment 70kg(150Ib) of Less |
{9}------------------------------------------------
Image /page/9/Picture/0 description: The image contains the logo for Osstem Implant. The logo is in orange and features the word "OSSTEM" in a stylized font, with the word "IMPLANT" written in a smaller, simpler font underneath. The logo is simple and clean, with a focus on the company name.
-dong, 51, Mayu-ro 238beon-gil, Siheung-si, Gyeonggi-do, 15079, Republic of Korea 1: +82 70 4626 0782 Fax: +82 70 4015 0508 www.osstem.com
### 7. Applied guideline
- > Electronic Submission Template for Medical Device 510(k) Submissions issued on October2,2023
- > The Special 510(k) Program issued on September 13.2019
- > Electromagnetic Compatibility (EMC) of Medical Devices Guidance for Industry and Food and Drug Administration Staff JUNE 2022
- > Pediatric Information for X-ray Imaging Device Premarket Notifications Guidance for Industry and Food and Drug Administration Staff NOVEMBER 2017
- > Premarket Assessment of Pediatric Medical Devices Guidance for Industry and FDA Staff MARCH 2014
- > Content of Premarket Submissions for Device Software Functions issued on June 2023
- > Guidance for the Submission of 510(k)s for Solid State X-ray Imaging Devices issued on September 2016
- > Cybersecurity in Medical Devices: Quality System Considerations and Content of Premarket Submissions issued on September 2023
### 8. Indications for Use
T2 PLUS is digital X-Ray imaging equipment for dental professionals that convert X-Ray signals into digital signals to acquire 2D images and reconstruct them into 3D images, using Panoramic (Pano), Cephalometric (Ceph), and Computed Tomography (CT) technology for the diagnosis of the anatomical structure of the oral and maxillofacial area.
T2-CS-P provides all three modes, whereas T2-C-P provides the first two modes and excludes the CEPH mode. The devices are operated and used by physicians, dentist and X-Ray technicians.
Use is contraindicated for patients with a head circumference of less than 48 cm or those aged 2 years or younger.
### 9. Summary of Non-Clinical Performance Testing
Software validation and verification test, EMC/Electrical Safety tests, and performance tests were conducted and the test results support that the subject device is substantially equivalent to the predicate device
### Non-Clinical Performance Data
We performed the applicable non-clinical tests in the FDA guidance document for solid state x-ray detectors.
A study was conducted to assess whether the clinical images from the T2 and T2 Plus devices provide the same diagnostic quality when reviewed by a radiologist.
To demonstrate that the two devices produce images of the same quality, images from
{10}------------------------------------------------
Image /page/10/Picture/0 description: The image shows the logo for Osstem Implant. The logo is in orange and features the word "OSSTEM" in a bold, sans-serif font. Below the word "OSSTEM" is the word "IMPLANT" in a smaller, thinner font. The logo is simple and modern.
2 Floor, B-dong, 51, Mayu-ro 238beon-gil, Siheung-si, Gyeonggi-do, 15079, Republic of Korea Tel: +82 70 4626 0782 Fax: +82 70 4015 0508 www.osstem.com
patients of the same gender and similar age group, under identical conditions, were compared. Additionally, both the proposed and predicate devices feature three modes-CT, Pano, and Ceph-each of which was evaluated (CT: 10 cases, Ceph: 10 cases, Pano: 11 cases). A total of 31 cases were reviewed (T2-CS-P: 31 images, T2-CS: 31 images). Questions regarding image quality were conducted to the evaluator to determine their Image is enough to determine diagnose.
Upon reviewing the evaluator' scores, it was confirmed that the scores for each question were identical for both the proposed device and the predicate device. This demonstrates that both devices deliver the same level of performance and quality.
In conclusion, the imaging evaluator confirmed that both the proposed device and the predicate device produce radiological images of adequate quality for dental and orthodontic diagnosis.
This confirmed that the proposed device and the predicate device produce radiological images of equivalent quality, making them suitable for diagnosis.
### Software Verification and Validation Testing
Software was designed and developed according to a software development process. Also, Software verification and validation test were conducted and documented in accordance with FDA guidance: "The content of premarket submissions for software contained in medical devices, on May 11, 2005". The software for this device contains "Moderate" level of concern software.
### Safety, EMC and Performance Data
T2 Plus complies with the electrical safety and electromagnetic compatibility requirements established by the standards IEC60601-1, IEC60601-1-2.
### 10. Summary of Clinical Testing
No clinical studies are submitted.
### 11. Conclusion
The indication for use and the technical characteristics of the subject device is substantially equivalent to the predicate device. It is substantially equivalent to predicate device in output characteristics and operation mode (CT, Cephalo, Panorama). The major difference is size of image volume however, the non-clinical and clinical study results show that the subject device is substantially equivalent to the predicate device. In accordance with the Federal Food, Drug and Cosmetic Act, 21 CFR Part 807 and Based on the information provided in this submission. we conclude that the subject device is safe and effective and substantially equivalent to the predicate device.
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Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.