The VELYS™ Robotic-Assisted Solution is intended for stereotaxic surgery to help the surgeon to identify the relative position and orientation of anatomical structures, plan the position of the femoral and tibial implant components intraoperatively and prepare the bones during total knee arthroplasty. The VELYS™ Robotic-Assisted Solution is indicated for use with the ATTUNE™ Total Knee System and its cleared indications for use.
Device Story
Image-free robotic-assisted surgery system for total knee arthroplasty (TKA); utilizes optical tracking to acquire anatomical landmarks; surgeon plans femoral and tibial implant positions intraoperatively; robotic arm assists in executing bone resections by constraining saw handpiece/blade orientation within planned planes; system compensates for patient leg movement in real-time; operated by surgeon in OR via touchscreen and footswitch; provides intraoperative guidance and bone preparation assistance; benefits include precise implant placement and bone resection execution; stores case reports for surgeon review.
Clinical Evidence
No clinical tests were conducted. Substantial equivalence demonstrated via bench testing, including functional system integration, full software verification (unit, integration, and system-level), and cybersecurity penetration testing.
Technological Characteristics
Image-free stereotaxic instrument; optical tracking system; robotic arm mounted to OR bed rail; touchscreen and footswitch interface; software-controlled resection plane constraint; real-time motion compensation; network connectivity for non-clinical use.
Indications for Use
Indicated for patients undergoing total knee arthroplasty requiring stereotaxic assistance for anatomical landmark identification, implant positioning, and bone preparation. Used in conjunction with the ATTUNE™ Total Knee System.
Regulatory Classification
Identification
A stereotaxic instrument is a device consisting of a rigid frame with a calibrated guide mechanism for precisely positioning probes or other devices within a patient's brain, spinal cord, or other part of the nervous system.
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image contains the logos of the Department of Health & Human Services and the U.S. Food & Drug Administration (FDA). The Department of Health & Human Services logo is on the left, featuring a stylized caduceus symbol. To the right is the FDA logo, with the acronym "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG" in a larger, bold blue font, and "ADMINISTRATION" in a smaller blue font below.
December 14, 2023
DePuy Ireland UC Bastien Michel D'annoville Senior Regulatory Affairs Specialist Loughbeg Ringaskiddy, Co. Cork Munster Ireland
Re: K233227
Trade/Device Name: VELYSTM Robotic-Assisted Solution Regulation Number: 21 CFR 882.4560 Regulation Name: Stereotaxic Instrument Regulatory Class: Class II Product Code: OLO Dated: September 29, 2023 Received: November 16, 2023
Dear Bastien Michel D'annoville:
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 (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.
{1}------------------------------------------------
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.
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-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,
Tejen D. Soni -S
For Shumaya Ali, MPH Assistant Director
{2}------------------------------------------------
DHT6C: Stereotaxic, Bone Growth Stimulators, and Fracture Fixation Devices OHT6: Office of Orthopedic Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
{3}------------------------------------------------
#### Indications for Use
Submission Number (if known)
K233227
Device Name
VELYS™ Robotic-Assisted Solution
Indications for Use (Describe)
The VELYS™ Robotic-Assisted Solution is intended for stereotaxic surgery to help the surgeon to identify the relative position and orientation of anatomical structures, plan the position of the femoral and tibial implant components intraoperatively and prepare the bones during total knee arthroplasty.
The VELYS™ Robotic-Assisted Solution is indicated for use with the ATTUNE™ Total Knee System and its cleared indications for use.
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)
#### 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."
{4}------------------------------------------------
| 510(k) #: | K233227 | 510(k) Summary | Prepared on: 2023-11-16 |
|-----------|---------|----------------|-------------------------|
|-----------|---------|----------------|-------------------------|
| Contact Details | 21 CFR 807.92(a)(1) |
|-----------------|---------------------|
|-----------------|---------------------|
| Applicant Name | DePuy Ireland UC |
|-----------------------------|--------------------------------|
| Applicant Address | Loughbeg Ringaskiddy Ireland |
| Applicant Contact Telephone | +33(0)679888395 |
| Applicant Contact | Mr. Bastien Michel d'Annoville |
| Applicant Contact Email | bdannovi@its.jnj.com |
| Device Name | 21 CFR 807.92(a)(2) |
|-------------|---------------------|
|-------------|---------------------|
| Device Trade Name | VELYS <sup>TM</sup> Robotic-Assisted Solution |
|---------------------|-----------------------------------------------|
| Common Name | Stereotaxic instrument |
| Classification Name | Orthopedic Stereotaxic Instrument |
| Regulation Number | 882.4560 |
| Product Code | OLO |
| Legally Marketed Predicate Devices | 21 CFR 807.92(a)(3) |
|------------------------------------|---------------------|
|------------------------------------|---------------------|
| Predicate # | Predicate Trade Name (Primary Predicate is listed first) | Product Code |
|-------------|----------------------------------------------------------|--------------|
| K202769 | VELYS <sup>™</sup> Robotic-Assisted Solution | OLO |
| Device Description Summary | 21 CFR 807.92(a)(4) |
|----------------------------|---------------------|
|----------------------------|---------------------|
The VELYST™ Robotic-Assisted Solution is an image-free robotic-assisted surgery system for Total Knee Arthroplasty (TKA). It is intended
lobotic-Assisted Solution is an image-free robotic-assisted surgery system for Total Knee Arthroplasty (TKA). I for stereotaxic surgery to aid the surgeon in identifying the relative position of anatomical structures and landmarks, planning the position of the femoral and tibial implant components intraoperatively, and preparing total knee arthroplasty.
The image-free system uses a dedicated optical tracking device to acquire anatomical landmarks are then used to plan the femoral and tibial implant locations based on the surgeon's preferred surgical technique and placement preferences. Following the planning step, the VELYS™ Robotic-Assisted Solution helps the surgeon to execute the bone preparation according to the plan.
The system includes a Robotic-Assisted Device that constrion and orientation of the saw handpiece and blade inside each plane corresponding to each resection on the patient's femur and tibia. The surgeon actuates the saw handpiece, within the planned resection plane, to execute the bone resection. This is analogous to using manual instruments in TKA. If the patient's leg moves during the resection, the Robotic-Assisted Device compensates for such movement in real-time.
The Robotic-Assisted Device is assembled with a Robotic-Assisted Device arm, mounted on the Operating Room (OR) bed rail, for a minimal footprint
The VELYS® Robotic-Assisted Solution incorporates several software subsystems, including applications responsible for general operation of the system and a Clinical Application dedicated to the surgery workflow.
The users interact with the Clinical Application via a touchscreen and footswitch to navigate through the surgery steps. Case Reports including key surgical procedure information are stored on the system and can be retrieved by the surgeon for future use. Cases Reports
{5}------------------------------------------------
including PHI are only available to the surgeon who performed the procedure.
# Intended Use/Indications for Use
The VELYS™ Robotic-Assisted Solution is intended for stereotaxic surgeon to identify the relative position and orientation of anatomical structures, plan the femoral and tibial implant components intraoperatively and prepare the bones during total knee arthroplasty.
The VELYS™ Robotic-Assisted Solution is indicated for use with the ATTUNE™ Total Knee System and its cleared indications for use.
## Indications for Use Comparison
The proposed device has the same indications for use as the predicate device.
# Technological Comparison
The subject device and predicate device have intended use, classification and principles of operation.
The subject device and predicate device have Surgical Workflow, including preoperative setup steps, anatomical registration, joint balance assessment, implant positioning and bone resection. They also have the same technological characteristics, and the same patient contact materials and energy source.
The subject device shows some differences regarding the network connectivity during non-clinical use.
#### Non-Clinical and/or Clinical Tests Summary & Conclusions 21 CFR 807.92(b)
The following tests were performed on the VELYS Robotic-Assisted Solution to demonstrate substantial equivalence of safety and efficacy with the predicate device:
• Functional System Integration Test
· Full software verification test campaign, including unit, integration, and software systeml-evel testing
· Cybersecurity testing, including penetration testing
No clinical tests were conducted to demonstrate substantial equivalence.
## 21 CFR 807.92(a)(5)
21 CFR 807.92(a)(5)
### 21 CFR 807.92(a)(6)
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
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.