Hip Spacer Molds; Knee Spacer Molds; Shoulder Spacer Molds
Applicant
Osartis GmbH
Product Code
MBB · Orthopedic
Decision Date
Nov 20, 2024
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 888.3027
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Hip Spacer Molds with stainless-steel reinforcement stems, centralizers and Hip Head Inserts are indicated for use to mold a temporary hemi-hip spacer for skeletally mature patients undergoing a two-stage revision procedure due to a septic process. The temporary hemi-hip spacer is molded using Cemex Genta LV, and inserted into femoral medullary canal and acetabular cavity following removal of the existing femoral and acetabular implants and debridement. The device is intended for use in conjunction with systemic antibiotic therapy (standard treatment approach to an infection). The temporary hemi-hip spacer made from Hip Spacer Molds is not intended for use more than 180 days, at which time it must be explanted, and permanent devices implanted, or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.). Due to the inherent mechanical limitations of the temporary hemi-hip spacer material (Cemex Genta LV) the temporary hemi-hip spacers is only indicated for patients who will consistently use traditional mobility assist devices (e.g., crutches, walkers) throughout the implant period. Femoral Knee Spacer Molds and Tibial Knee Spacer Molds are indicated for use to mold a temporary total knee replacement (TKR) for skeletally mature patients undergoing a two-stage revision procedure due to a septic process. The temporary prosthesis is molded using Cemex Genta LV and inserted into the joint space following removal of the existing total knee replacement implants and debridement. The device is intended for use in conjunction with systemic antimicrobial antibiotic therapy (standard treatment approach to an infection). The temporary total knee spacer made from the Femoral Knee Spacer Molds and Tibial Knee Spacer Molds is not intended for use more than 180 days, at which time it must be explanted, and permanent devices implanted, or another appropriate treatment performed (e.g., resection arthroplasty fusion, etc.). Due to the inherent mechanical limitations of the temporary total knee spacer material (Cemex Genta LV), the temporary total knee spacer is only indicated for patients who will consistently use traditional mobility devices (e.g., crutches, walkers) throughout the implant period. Shoulder Spacer Molds with stainless-steel reinforcement stems, centralizers and Shoulder Head Inserts are indicated for use to mold a temporary hemi-shoulder spacer for skeletally mature patients undergoing a two-stage revision procedure due to a septic process. The temporary hemi-shoulder spacer is molded using Cemex Genta LV, and inserted into femoral medullary canal and acetabular cavity following removal of the existing femoral and acetabular implants and debridement. The device is intended for use in conjunction with systemic antibiotic therapy (standard treatment approach to an infection). The temporary hemi-shoulder spacer made from Shoulder Spacer Molds is not intended for use more than 180 days, at which time it must be explanted, and permanent devices implanted, or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.). Due to the inherent mechanical limitations of hemi-shoulder prothesis material (Cemex Genta LV) the temporary hemi-shoulder prothesis is only indicated for patients who will consistently follow activity limitations throughout the implant period.
Device Story
Sterile, single-use modular molds for fabricating temporary joint spacers (hemi-hip, total knee, hemi-shoulder) from bone cement (Cemex Genta LV). Used by surgeons in two-stage revision procedures for septic joint infections. Molds include stainless-steel reinforcement stems and centralizers. Surgeon fills molds with bone cement; once cured, the temporary spacer is implanted following debridement and removal of existing hardware. Spacers provide temporary joint function, partial weight-bearing, and local antibiotic delivery (via cement) while systemic therapy treats infection. Must be explanted within 180 days. Benefits include maintaining joint space and patient mobility during the infection treatment interval.
Clinical Evidence
Bench testing only. No clinical data. Performance testing included biocompatibility (ISO 10993), sterilization validation (ISO 11135), and mechanical testing per ISO 7206-4/6 (hip/shoulder), ISO 14243-1 (knee wear), and ASTM F1800 (tibial trays). Antibiotic elution testing was also performed.
Technological Characteristics
Modular, single-use molds with stainless-steel reinforcement stems and centralizers. Materials evaluated per ISO 10993-1. Sterilization via ethylene oxide (ISO 11135). Shelf life 2 years. Mechanical testing performed per ISO 7206-4, ISO 7206-6, ISO 14243-1, and ASTM F1800.
Indications for Use
Indicated for skeletally mature patients undergoing two-stage revision procedures due to septic processes in hip, knee, or shoulder joints. Requires use of Cemex Genta LV bone cement. Contraindicated for use exceeding 180 days. Patients must use mobility aids (crutches/walkers) or follow activity limitations due to material mechanical limitations.
Regulatory Classification
Identification
Polymethylmethacrylate (PMMA) bone cement is a device intended to be implanted that is made from methylmethacrylate, polymethylmethacrylate, esters of methacrylic acid, or copolymers containing polymethylmethacrylate and polystyrene. The device is intended for use in arthroplastic procedures of the hip, knee, and other joints for the fixation of polymer or metallic prosthetic implants to living bone.
Special Controls
*Classification.* Class II (special controls). The special control for this device is the FDA guidance document entitled “Class II Special Controls Guidance Document: Polymethylmethacrylate (PMMA) Bone Cement.”
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November 20, 2024
Image /page/0/Picture/1 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA logo on the right. The FDA logo is in blue and includes the letters "FDA" in a square, followed by the words "U.S. FOOD & DRUG ADMINISTRATION".
Osartis GmbH Stefan Deußer Director Research & Development Auf der Beune 101 Munster, 64839 Germany
Re: K240856
Trade/Device Name: Hip Spacer Molds; Knee Spacer Molds; Shoulder Spacer Molds Regulation Number: 21 CFR 888.3027 Regulation Name: Polymethylmethacrylate (PMMA) Bone Cement Regulatory Class: Class II Product Code: MBB, KWL, KWY, HSD, KWS, JWH Dated: March 27, 2024 Received: March 28, 2024
Dear Stefan Deußer:
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.
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).
{1}------------------------------------------------
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 OS 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-devices/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-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).
{2}------------------------------------------------
Sincerely,
| JESSE<br>MUIR -S | Digitally signed by<br>JESSE MUIR -S |
|------------------|--------------------------------------|
| MUIR -S | Date: 2024.11.20<br>12:56:23 -05'00' |
Jesse Muir, Ph.D. Assistant Director DHT6C: Division of Restorative, Repair, and Trauma Devices OHT6: Office of Orthopedic Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
Submission Number (if known)
#### K240856
Device Name
Hip Spacer Molds; Knee Spacer Molds; Shoulder Spacer Molds
ndications for Use (Describe)
## Hip Spacer Molds
Hip Spacer Molds with stainless-steel reinforcement stems, centralizers and Hip Head Inserts are indicated for use to mold a temporary hemi-hip spacer for skeletally mature patients undergoing a two-stage revision procedure due to a septic process. The temporary hemi-hip spacer is molded using Cemex Genta LV, and inserted into femoral medullary canal and acetabular cavity following removal of the existing femoral and acetabular implants and debridement. The device is intended for use in conjunction with systemic antibiotic therapy (standard treatment approach to an infection). The temporary hemi-hip spacer made from Hip Spacer Molds is not intended for use more than 180 days, at which time it must be explanted, and permanent devices implanted, or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.).
Due to the inherent mechanical limitations of the temporary hemi-hip spacer material (Cemex Genta LV) the temporary hemi-hip spacers is only indicated for patients who will consistently use traditional mobility assist devices (e.g., crutches, walkers) throughout the implant period.
## Knee Spacer Molds
Femoral Knee Spacer Molds and Tibial Knee Spacer Molds are indicated for use to mold a temporary total knee replacement (TKR) for skeletally mature patients undergoing a two-stage revision procedure due to a septic process. The temporary prosthesis is molded using Cemex Genta LV and inserted into the joint space following removal of the existing total knee replacement implants and debridement. The device is intended for use in conjunction with systemic antimicrobial antibiotic therapy (standard treatment approach to an infection).
The temporary total knee spacer made from the Femoral Knee Spacer Molds and Tibial Knee Spacer Molds is not intended for use more than 180 days, at which time it must be explanted, and permanent devices implanted, or another appropriate treatment performed (e.g., resection arthroplasty fusion, etc.).
Due to the inherent mechanical limitations of the temporary total knee spacer material (Cemex Genta LV), the temporary total knee spacer is only indicated for patients who will consistently use traditional mobility devices (e.g., crutches, walkers) throughout the implant period.
# Shoulder Spacer Molds
Shoulder Spacer Molds with stainless-steel reinforcement stems, centralizers and Shoulder Head Inserts are indicated for use to mold a temporary hemi-shoulder spacer for skeletally mature patients undergoing a two-stage revision procedure due to a septic process. The temporary hemi-shoulder spacer is molded using Cemex Genta LV, and inserted into femoral medullary canal and acetabular cavity following removal of the existing femoral and acetabular implants and debridement. The device is intended for use in conjunction with systemic antibiotic therapy (standard treatment approach to an infection).
The temporary hemi-shoulder spacer made from Shoulder Spacer Molds is not intended for use more than 180 days, at which time it must be explanted, and permanent devices implanted, or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.).
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Due to the inherent mechanical limitations of hemi-shoulder prothesis material (Cemex Genta LV) the temporary hemi-shoulder prothesis is only indicated for patients who will consistently follow activity limitations throughout the implant period.
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)
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# 510(k) Summary
In accordance with 21 CFR 807.92 the following information is provided for the Spacer Molds.
| General Information | |
|-----------------------------|-------------------------------------------------------------------------------------------------------------------------|
| Date of preparation | October 21, 2024 |
| Submission type | Traditional 510(k) |
| Submitter and Owner 510(k): | OSARTIS GmbH<br>Auf der Beune 101<br>64839 Münster<br>Germany<br>Phone: +49 6071 / 929-0<br>Fax: +49 6071 / 929-100 |
| Contact Person: | Volker Stirnal |
| Device Name | |
| Trade Name: | Hip Spacer Molds<br>Knee Spacer Molds<br>Shoulder Spacer Molds |
| Common/Usual Name: | Bone Cement Spacer Mold; Disposable<br>Cement Spacer Molds for Temporary<br>Hemi-Hip, Knee and Hemi-Shoulder |
## Classification Information
| Classification Name: | Bone cement, Antibiotic, Hip joint femoral (hemi-hip)<br>metal/polymer cemented or uncemented prosthesis, Hip<br>joint femoral (hemi-hip) metallic cemented or<br>uncemented prosthesis, |
|----------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Classification Regulation: | 21 CFR § 888.3027, § 888.3360, § 888.3390 |
| Regulatory Class: | Class II |
| Product Code: | MBB |
| Subsequent Product Codes: | KWL, KWY |
| Panel: | Orthopedic |
Prosthesis
{6}------------------------------------------------
# 510(k) Summary
| Classification Name: | Bone cement, Antibiotic; Prosthesis, Knee,<br>Patellofemorotibial, Semi-Constrained, Cemented,<br>Polymer/Metal/Polymer, |
|----------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Classification Requlation: | 21 CFR § 888.3027, § 888.3560 |
| Requlatory Class: | Class II |
| Product Code: | MBB |
| Subsequent Product Code: | JWH |
| Panel: | Orthopedic |
| Classification Name: | Bone cement, Antibiotic, Shoulder joint humeral (hemi-<br>shoulder) metallic uncemented prosthesis, Shoulder<br>joint metal/polymer semi-constrained cemented<br>prosthesis, |
| Classification Requlation: | 21 CFR § 888.3027, § 888.3690, § 888.3660, |
| Regulatory Class: | Class II |
| Product Code: | MBB |
| Subsequent Product Codes: | HSD, KWS |
| Panel: | Orthopedic |
### Predicate Device
- REMEDY® Hip and Knee Spacer (K112470) Originally cleared under the ● trade name, 2GC Hip/Knee Modular Spacer (S.E. 04/05/2012)
- Remedy® Shoulder Spacer (K152267, S.E. 12/15/2015) ●
- InterSpace Knee (K181732, S.E. 27/04/2019) ●
### Reference Device
- Biomet OneStage Hip Spacer Mold K222760 .
- Biomet OneStage Knee Spacer Mold K213287 ●
- . Biomet OneStage Shoulder Spacer Mold K221968
### Device Description
#### Hip Spacer Molds
The Hip Spacer Molds are sterile, single use molds used for forming of interim prothesis from bone cement. These interim prothesis are intended as temporary hemi-hip spacers in a two-stage septic hip joint endoprosthesis. The Hip Spacer Molds are available as modular system, which is combinable to obtain different sized spacers.
### Knee Spacer Molds
The Femoral and Tibial Knee Spacer Molds are sterile, single use molds used for forming of interim prothesis from bone cement. These interim prothesis are intended as temporary knee spacers in a two-stage septic knee joint endoprosthesis. The Knee Spacer Molds are available as modular system, which is combinable to obtain different sized spacers.
{7}------------------------------------------------
### Shoulder Spacer Molds
The Shoulder Spacer Molds are sterile, sinqle use molds used for forming of interim prothesis from bone cement. These interim prothesis are intended as temporary hemishoulder spacers in a two-stage septic glenohumeral joint endoprosthesis. The Shoulder Spacer Molds are available as modular system, which is combinable to obtain different sized spacers.
## Indication for Use
#### Hip Spacer Molds
Hip Spacer Molds with stainless-steel reinforcement stems, centralizers and Hip Head Inserts are indicated for use to mold a temporary hemi-hip spacer for skeletally mature patients undergoing a two-stage revision procedure due to a septic process. The temporary hemi-hip spacer is molded using Cemex Genta LV, and inserted into femoral medullary canal and acetabular cavity following removal of the existing femoral and acetabular implants and debridement. The device is intended for use in conjunction with systemic antibiotic therapy (standard treatment approach to an infection).
The temporary hemi-hip spacer made from Hip Spacer Molds is not intended for use more than 180 days, at which time it must be explanted, and permanent devices implanted, or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.).
Due to the inherent mechanical limitations of the temporary hemi-hip spacer material (Cemex Genta LV) the temporary hemi-hip spacers is only indicated for patients who will consistently use traditional mobility assist devices (e.g., crutches, walkers) throughout the implant period.
### Knee Spacer Molds
Femoral Knee Spacer Molds and Tibial Knee Spacer Molds are indicated for use to mold a temporary total knee replacement (TKR) for skeletally mature patients undergoing a two-stage revision procedure due to a septic process. The temporary prosthesis is molded using Cemex Genta LV and inserted into the joint space following removal of the existing total knee replacement implants and debridement. The device is intended for use in coniunction with systemic antibiotic therapy (standard treatment approach to an infection).
The temporary total knee spacer made from the Femoral Knee Spacer Molds and Tibial Knee Spacer Molds is not intended for use more than 180 days, at which time it must be explanted, and permanent devices implanted, or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.).
Due to the inherent mechanical limitations of the temporary total knee spacer material (Cemex Genta LV), the temporary total knee spacer is only indicated for patients who will consistently use traditional mobility devices (e.q., crutches, walkers) throughout the implant period.
{8}------------------------------------------------
## Shoulder Spacer Molds
Shoulder Spacer Molds with stainless-steel reinforcement stems, centralizers and Shoulder Head Inserts are indicated for use to mold a temporary hemi-shoulder spacer for skeletally mature patients undergoing a two-stage revision procedure due to a septic process. The temporary hemi-shoulder spacer is molded using Cemex Genta LV, and inserted into femoral medullary canal and acetabular cavity following removal of the existing femoral and acetabular implants and debridement. The device is intended for use in conjunction with systemic antibiotic therapy (standard treatment approach to an infection).
The temporary hemi-shoulder spacer made from Shoulder Spacer Molds is not intended for use more than 180 days, at which time it must be explanted, and permanent devices implanted, or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.).
Due to the inherent mechanical limitations of hemi-shoulder prothesis material (Cemex Genta LV) the temporary hemi-shoulder prothesis is only indicated for patients who will consistently follow activity limitations throughout the implant period.
### Comparison of the indication for use with the predicate device
The new molds and the predicate spacers share the same primary function, mode of action, target patient population, conditions of use and use in the same surgical procedure, users and body contact. Both the new molds and the predicate spacers have the same intended use: to provide patients undergoing the first stage of a twostage revision procedure a temporary joint implant to allow partial weightbearing, flexibility and mobility while the infection is treated. The slight differences in the indication for use statement focus on the different technological characteristics of providing a mold to fabricate the spacer versus providing a prefabricated spacer.
### Comparison of the technological Characteristics with the Predicate Device
The produced interim hemi-hip, knee and hemi-shoulder spacer, which are molded with the Hip, Knee and Shoulder Spacer Molds have the same technological characteristics compared to the predicate devices (K112470, K152267, K181732). Performance testing was performed to demonstrate substantial equivalence of the subject devices with the predicate devices.
#### Summary of Performance Data
The collection of performance data was conducted according to FDA recognized standards in order to demonstrate substantial equivalence to the predicate devices.
Sterilization and Shelf life: The sterilization process, including the ethylene oxide method has been validated and the sterility of the subject devices has been verified according to ISO 11135. The Spacer Molds have a shelf life of 2 years.
Biocompatibility: The Hip Spacer Molds, Knee Spacer Molds, and Shoulder Spacer Molds have been categorized for their body contact and duration of contact according to ISO 10993-1, "Biological Evaluation of Medical Devices - Part 1: Evaluation and Testing Within a Risk Management Process" to select the appropriate biocompatibility testing program.
#### Hip Spacer Molds
According to ISO 10993-1, the Hip Spacer Molds is categorized as an Implant Device in indirect contact with Tissue/Bone for more than 30 days (>30 days: Permanent device), Exposure Category: C.
{9}------------------------------------------------
### Knee Spacer Molds
According to ISO 10993-1, the Knee Spacer Molds is categorized as an Externally Communicating Device in indirect contact with Tissue/Bone for less than 24 hours (<24 hours: limited contact device), Exposure Category: A.
### Shoulder Spacer Molds
According to ISO 10993-1, the Hip Spacer Molds is categorized as an Implant Device in indirect contact with Tissue/Bone for more than 30 days (>30 days: Permanent device), Exposure Category: C.
Therefore, the following tests were performed:
- Cytotoxicity (ISO 10993-5) .
- . Sensitization (ISO 10993-10)
- . Intracutaneous reactivity (ISO 10993-23)
- . Pyrogenicity (ISO 10993-11)
- Acute systemic toxicity (ISO 10993-11) .
Performance testing: The following tests were performed.
- Endurance properties and performance requirements of stemmed femoral hip . components according to ISO 7206-4
- Endurance properties and performance requirements of neck region stemmed . femoral hip components according to ISO 7206-6
- . Wear of total knee-joint prothesis according to ISO 14243-1
- Endurance properties of tibial trays according to ASTM F1800 .
- Endurance properties of the stem and neck region of molded shoulder spacer based ● on ISO 7206-4 and ISO 7206-6
- . Antibiotic (gentamicin) elution testing
### Conclusion
The Hip Spacer Molds, the Knee Spacer Molds as well as the Shoulder Spacer Molds have been found to be substantially equivalent to the predicate devices with respect to technical characteristics, performance and intended use. The information provided within this premarket notification supports substantial equivalence of the subjects and predicate devices.
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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.