K110415 · Materialise NV · HRY · May 16, 2011 · Orthopedic
Device Facts
Record ID
K110415
Device Name
SIGNATURE PLANNER / SIGNATURE GUIDES
Applicant
Materialise NV
Product Code
HRY · Orthopedic
Decision Date
May 16, 2011
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 888.3530
Device Class
Class 2
Indications for Use
Signature™ Personalized Patient Care System is intended to be used as a surgical instrument to assist in the positioning of total and partial knee replacement components intra-operatively and in guiding the marking of bone before cutting and to guide cutting, provided that anatomic landmarks necessary for alignment and positioning of the implant are identifiable on patient imaging scans. The Signature Personalized Patient Care System can be used with the following Biomet® Knee Systems and their respective components: Vanguard™ Complete Knee System, Vanguard™ M Unicompartmental Knee System, Vanguard™ SSK 360, Vanguard™ SSK Revision Knee System, Regenerex™ Primary Tibial System, Offset & Microplasty Tibial Systems, Maxim™ Complete Knee System, Ascent™ Total Knee System, and AGC™ Complete Knee system. The Signature™ guides are intended for single use only.
Device Story
Signature™ Personalized Patient Care System comprises Signature™ Planner software and patient-specific Signature™ guides. System inputs are patient MRI imaging data. Surgeon uses Signature™ Planner to inspect, fine-tune, and approve a pre-surgical plan. Based on this plan, patient-specific guides are manufactured to transfer pre-operatively determined cut planes to the patient intra-operatively. Guides assist surgeon in positioning/aligning knee replacement components by marking drill/cut locations. Used in clinical settings by surgeons. Output is physical guide templates for single-use. Benefits include improved surgical accuracy and alignment for total/partial knee replacement procedures.
Clinical Evidence
No clinical data. Bench testing only, including cadaveric trials to verify system accuracy and guide deformation testing post-sterilization.
Technological Characteristics
System consists of software (Signature™ Planner) and patient-specific hardware (Signature™ guides). Guides are single-use. Software facilitates pre-surgical planning based on MRI data. No specific materials or energy sources described beyond standard surgical instrument classification.
Indications for Use
Indicated for patients undergoing total or partial knee replacement surgery where anatomic landmarks for implant alignment are identifiable on patient MRI scans. Contraindicated if necessary anatomic landmarks are not identifiable.
Regulatory Classification
Identification
A knee joint femorotibial metal/polymer semi-constrained cemented prosthesis is a device intended to be implanted to replace part of a knee joint. The device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. This generic type of device includes prostheses that consist of a femoral component made of alloys, such as cobalt-chromium-molybdenum, and a tibial component made of ultra-high molecular weight polyethylene and is limited to those prostheses intended for use with bone cement (§ 888.3027).
Predicate Devices
Signature™ Personalized Patient Care System (K102795)
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# 510(k) Summary
# Submitter information
| Company name | Materialise N.V. |
|-----------------------------------|-------------------------------------|
| Establishment registration number | 3003998208 |
| Street Address | Technologielaan 15 |
| City | Leuven |
| Postal code | 3001 |
| Country | Belgium |
| Phone number | +32 16 39 62 80 |
| Fax number | +32 16 39 66 06 |
| Contact name | Alexandra Razzhivina |
| Contact title | Regulatory affairs officer |
| Contact e-mail address | alexandra.razzhivina@materialise.be |
### Submission date
The date of the Traditional 510(k) submission is 11th of February.
## Submission information
| Trade Name | Signature™ Planner<br>Signature™ guides |
|---------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Common Name | Knee prosthesis |
| Classification Name | - Knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis.<br>-Knee joint patellofemorotibial metal/polymer porous-coated uncemented prosthesis<br>- Knee joint femorotibial metal/polymer semi-constrained cemented prosthesis |
| Product code | JWH/OIY (21 CFR § 888.3560), MBH (21 CFR § 888.3565),<br>HRY (21 CFR § 888.3530), OOG |
### Predicate devices
| Predicate Device | |
|------------------------------------|---------------------------------------------|
| Trade or proprietary or model name | Signature™ Personalized Patient Care System |
| 510(k) number | K102795 |
| Decision date | 02/02/2011 |
| Product code | JWH/OIY, MBH, OOG |
| Manufacturer | Materialise N.V. |
| Predicate Device | |
|------------------------------------|--------------------------------|
| Trade or proprietary or model name | Patient Matched Cutting Blocks |
| 510(k) number | K082358 |
| Decision date | 11/25/2008 |
| Product code | JWH, MBH |
| Manufacturer | Smith and Nephew, Inc. |
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#### Device Information
#### Description of the device
The Signature™ Personalized Patient Care System consists of a software component, Signature™ Planner and a hardware component, Signature™ guides and is designed to assist the surgeon in the placement of Biomet total and partial knee replacement components.
#### Functioning of the device
The Signature™ Personalized Patient Care System generates a pre-surgical plan based on MRI imaging data using the Signature™ Planner (software component). The software is then used pre-operatively by a qualified surgeon to inspect, fine-tune and approve the presurgical plan. Next, Signature™ guides are designed and manufactured based on the approved pre-surgical plan. Signature™ guides are patient specific templates that transfer the pre-operatively determined cut planes for positioning of the total and partial knee replacement components to the patient intra-operatively, assisting the surgeon in positioning and aligning the actual total and partial knee replacement components by guiding and marking drill and/or cut locations.
#### Intended use
Signature™ Personalized Patient Care System is intended to be used as a surgical instrument to assist in the positioning of total and partial knee replacement components intra-operatively and in guiding the marking of bone before cutting and to guide cutting, provided that anatomic landmarks necessary for alignment and positioning of the implant are identifiable on patient imaging scans.
The Signature Personalized Patient Care System can be used with the following Biomet® Knee Systems and their respective components: Vanguard™ Complete Knee System, Vanguard™ M Unicompartmental Knee System, Vanguard™ SSK 360, Vanguard™ SSK Revision Knee System, Regenerex™ Primary Tibial System, Offset & Microplasty Tibial Systems, Maxim™ Complete Knee System, Ascent™ Total Knee System, and AGC™ Complete Knee system.
The Signature™ guides are intended for single use only.
#### Summary of technological characteristics
Device comparison showed that the proposed device is substantially equivalent in intended use, materials and performance characteristics to the predicate devices.
#### Performance data
#### Non-clinical tests
The Signature"" Planner software has been validated for its intended use to determine substantial equivalence to the predicate devices.
Accuracy performance testing by means of cadaveric trials, and guide deformation verification after sterilization was performed to determine substantial equivalence. Testing
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verified that the accuracy and performance of the system is adequate to perform as intended.
Clinical data Not applicable.
. · ..
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Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized depiction of an eagle or bird-like figure, composed of three curved lines that suggest wings or feathers. The logo is encircled by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" in a circular arrangement.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
Materialise N.V. % Ms. Alexandra Razzhivina Technologielaan 15 3001 Leuven Belgium
MAY 16 2011
Re: K110415 Trade/Device Name: Signature guides™, Signature™ Planner Regulation Number: 21 CFR 888.3530 Regulation Name: Knee joint femorotibial metal/polymer semi-constrained cemented prosthesis Regulatory Class: Class II Product Code: HRY, JWH, OIY, MBH, OOG Dated: May 4, 2011 Received: May 6, 2011
Dear Ms. Razzhivina:
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 10 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. Iisting 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 additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set
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Page 2 - Ms. Alexandra Razzhivina
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.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportalProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,
Aty B. Rh
Mark N. Melkerson Director Division of Surgical, Orthopedic, and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
### 510(k) Number (if known): K | 041 | کا
Device Name: The Signature™ Personalized Patient Care System (Signature™ guides, Signature™ Planner)
#### Indications for Use:
Signature™ Personalized Patient Care System is intended to be used as a surgical instrument to assist in the positioning of total and partial knee replacement components intra-operatively and in guiding the marking of bone before cutting and to guide cutting, provided that anatomic landmarks necessary for alignment and positioning of the implant are identifiable on patient imaging scans.
The Signature™ Personalized Patient Care System can be used with the following Biomet® Knee Systems and their respective components: Vanguard™ Complete Knee System, Vanguard™ M Unicompartmental Knee System, Vanguard™ SSK 360, Vanguard™ SSK Revision Knee System, Regenerex™ Primary Tibial System, Offset & Microplasty Tibial Systems, Maxim™ Complete Knee System, Ascent™ Total Knee System, and AGC™ Complete Knee system.
The Signature™ guides are intended for single use only.
Prescription Use X (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
for M. Melkerson
Page 1 of 1
(Division Sign-Off) Division of Surgical, Orthopedic, and Restorative Devices
510(k) Number K110415
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.
