K110730 · Computerized Medical Systems, Inc. · MUJ · Jun 24, 2011 · Radiology
Device Facts
Record ID
K110730
Device Name
MONACO RTP SYSTEM
Applicant
Computerized Medical Systems, Inc.
Product Code
MUJ · Radiology
Decision Date
Jun 24, 2011
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.5050
Device Class
Class 2
Attributes
Software as a Medical Device
Indications for Use
The Monaco system is used to make treatment plans for patients with prescriptions for external beam radiation therapy. The system calculates dose for photon treatment plans and displays, on-screen and in hard-copy, two- or three-dimensional radiation dose distributions inside patients for given treatment plan set-ups. The Monaco product line is intended for use in radiation treatment planning. It uses generally accepted methods for: . contouring . image manipulation simulation . image fusion . . plan optimization QA and plan review .
Device Story
Monaco RTP System is a software-based radiation treatment planning system. It accepts patient diagnostic imaging data and dosimetry data from linear accelerators. Dosimetrists or Medical Physicists use the system to define target volumes and critical structures via contouring on images. The system enables creation of treatment scenarios by adjusting beam number, position, and energy, and configuring multileaf collimators (MLC). It calculates and displays 2D/3D radiation dose distributions. The user selects the optimal plan to maximize target dose while minimizing healthy tissue exposure. The system is used in clinical settings by qualified professionals. It does not directly control the linear accelerator; plans are reviewed and approved by clinicians before treatment delivery. The device benefits patients by facilitating precise, optimized radiation therapy planning.
Clinical Evidence
No clinical trials were performed. Safety and effectiveness were demonstrated through non-clinical verification testing and algorithm testing comparing calculated doses against measured doses. Clinically oriented validation test cases were executed in-house to ensure the system is fit for clinical use.
Technological Characteristics
Software-based radiation treatment planning system running on Windows OS. Features Monte Carlo (photon) and Pencil Beam (optimization) dose calculation algorithms. Supports DICOM RT standards, MLC configuration, and image fusion. Operates as a standalone planning workstation. Major level of concern software.
Indications for Use
Indicated for patients with prescriptions for external beam radiation therapy requiring radiation treatment planning, including contouring, image manipulation, simulation, image fusion, plan optimization, and QA/plan review.
Regulatory Classification
Identification
A medical charged-particle radiation therapy system is a device that produces by acceleration high energy charged particles (e.g., electrons and protons) intended for use in radiation therapy. This generic type of device may include signal analysis and display equipment, patient and equipment supports, treatment planning computer programs, component parts, and accessories.
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JUN 2 4 2011
## K110730
June 14, 2011
# Monaco RTP System Premarket Notification (510(k)) Summary of Safety and Effectiveness
## INTRODUCTION
This document summarizes the safety and effectiveness information contained within this Premarket Notification. The Summary of Safety and Effectiveness contains no confidential or trade secret information and is intended for full public disclosure and distribution.
## PREMARKET NOTIFICATION INFORMATION
- 1. Product Information:
- a. Product Trade Name
- b. Release Version Number
- 2. Classification Information:
- a. Classification Name
- b. Common/Usual Name
- Product Classification c.
- d. Product Code
- e. Reference
- f. Review Panel
- 3. Establishment Information:
- a. Submitter
- b. Submitter Address
- c. Establishment Number
- d. Contact
- e. Contact Phone
- Contact Fax f.
Monaco RTP System DCAT feature added in rel. 3.0.0
Medical charged-particle radiation therapy system Radiation Treatment Planning System Class II MUJ
21 CFR 892.5050 Radiology
Computerized Medical Systems, Inc. 13723 Riverport Dr. , Suite 100 Maryland Heights, MO 63043 1937649 Kathryn Stinson, RA Specialist 314-993-0003 314-993-1175
!
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## PREDICATE DEVICE INFORMATION
The Monaco RTP System with dynamic conformal (DCAT) functionality is substantially equivalent to the following devices that the FDA has cleared for distribution and are currently being actively marketed in the United States.
- 1. Monaco RTP System Computerized Medical Systems, Inc. K091179
- 2. ERGO++RTP System Computerized Medical Systems, Inc. K080601
- 3. Eclipse Treatment Planning System Varian Medical Systems K102011
## MONACO INTENDED USE
The Monaco system is used to make treatment plans for patients with prescriptions for external beam radiation therapy. The system calculates dose for photon treatment plans and displays, on-screen and in hard-copy, two- or three-dimensional radiation dose distributions inside patients for given treatment plan set-ups.
The Monaco product line is intended for use in radiation treatment planning. It uses generally accepted methods for:
- . contouring
- . image manipulation
- simulation .
- image fusion .
- . plan optimization
- QA and plan review .
## DESCRIPTION OF THE PRODUCT
Monaco is a radiation treatment planning system that first received FDA clearance in 2007 (K071938). The modified system received clearance in 2009, when Volumetric Modulated Arc Therapy (VMAT) planning capability was added (K091179). The Monaco system accepts patient diagnostic imaging data and "source" dosimetry data
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from a linear accelerator. The system then permits the user to display and define (contour) the target volume to be treated and critical structures which must not receive above a certain level of radiation on these diagnostic images.
Based on the prescribed dose, the user, a Dosimetrist or Medical Physicist, can create multiple treatment scenarios involving the number, position(s) and energy of radiation beams and the use of a multileaf collimator (MLC) between the source of radiation and the patient to shape the beam. The Monaco system then produces a display of radiation dose distribution within the patient, indicating doses to the target volume and surrounding structures. The "best" plan satisfying the prescription is then selected, one that maximizes dose to the target volume while minimizing dose to surrounding healthy volumes.
#### LEVEL OF CONCERN
Item 4b of Table 1 in the FDA Guidance document entitled, "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices asks, "Does the Software Device control the delivery of potentially harmful energy that could result in death or serious injury, such as radiation treatment systems ... " Monaco does not directly control the linear accelerator that delivers the radiation. Once completed, plans are reviewed and approved by qualified clinicians and may be subject to quality assurance practices before treatment actually takes place. There is no automatic link between the Monaco software and the linear accelerator. However, should a flaw in the treatment plan escape the notice of the qualified professionals using the Monaco system, serious injurv or death could result. Therefore, we believe Monaco to be of major level of concern.
### SUMMARY OF CLINICAL TESTING
Clinical trials were not performed as part of the development of this product. Clinical testing on patients is not advantageous in demonstrating substantial equivalence or safety and effectiveness of the device since testing can be performed such that no human subjects are exposed to risk. Algorithm testing was performed to compare calculated against measured doses to ensure dose calculation accuracy. In addition, clinically oriented validation test cases were written and executed in-house by CMS customer support personnel. The product was deemed fit for clinical use.
### SUMMARY OF NON-CLINICAL TESTING
Verification tests were written and executed to ensure that the system is working as designed. Pass/fail requirements and results of this testing can be found in section 18 of this submission. Monaco successfully passed verification testing.
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# SUBSTANTIAL EQUIVALENCE COMPARISON
Table 5-1 compares Monaco with Dynamic Conformal capability to its predicate devices. A more detailed discussion of substantial equivalence is contained in Section 12 of this submission.
ﺃ
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| | Monaco w/DCAT<br>Functionality | Monaco (w/VMAT)<br>(K091179) | ERGO++<br>(K080601) | Eclipse TPS<br>(K102011) |
|--------------------------------------------------|-----------------------------------------------------------|-----------------------------------------------------------|---------------------|-----------------------------------------------------------------|
| Intended Use and Indications for Use | | | | |
| Contouring | Yes | Yes | Yes | Yes |
| Dose Calculation | Yes | Yes | Yes | Yes |
| Plan Optimization | Yes | Yes | Yes | Yes |
| Image Manipulation & Fusion | Yes | Yes | Yes | Yes |
| CT Simulation | Yes | Yes | No | Yes |
| QA/Plan Review | Yes | Yes | Yes | Yes |
| Brachytherapy | No | No | No | No |
| Statement specifies that system is for IMRT only | No | No | No | No |
| Basic System: Technological Characteristics | | | | |
| Dose Calculation Algorithms | Monte Carlo (photon) &<br>Pencil Beam (optimization only) | Monte Carlo (photon) & Pencil<br>Beam (optimization only) | Pencil Beam | Pencil Beam, Electron Monte Carlo,<br>Convolution Superposition |
| Local Biological Measure Optimization | Yes | Yes | No | Yes |
| MLC Support | Yes | Yes | Yes | Yes |
| Support of Other Treatment Aids | No | No | Yes | Yes |
| Support for Dynamic Delivery Methods | Yes | Yes | Yes | Yes |
| Operating System | Windows | Windows | Linux | Windows |
| DICOM RT Support | Yes | Yes | Yes | Yes |
| Modalities Supported: Full RTP Workflow | Photon Only | Photon Only | Photon Only | Electron, Photon, Proton |
| Modalities Supported: Partial Workflow* | Electron, Photon, Proton | Electron, Photon, Proton | N/A | Electron, Photon, Proton |
| New Features: Technological Characteristics | | | | |
| Includes Dynamic Conformal Capability | Yes | Yes | Yes | Yes |
| Stereotactic Localization | No | No | Yes | Yes |
| Support for Cone-Based Stereotactic | No | No | Yes | Yes |
able 5-1: Substantial Equivlaence to Predicate Device:
* A partal world include only the finctions of Monaco that are shared with Focal, such as ontention, and plan review. Clinicans who use only the Focal
finctions within Monaco
5-5
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Image /page/5/Picture/0 description: The image shows the seal of the Department of Health & Human Services - USA. The seal is circular and contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. In the center of the seal is an image of an eagle.
### DEPARTMENT OF HEALTH & HUMAN SERVICES
---
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room - WO66-G609 Silver Spring, MD 20993-0002
JUN 2 4 2011
Ms. Kathryn Stinson Regulatory Affairs Specialist Elekta, Inc., CMS Software 13723 Riverport Drive, Suite 100 MARYLAND HEIGHTS MO 63043
Re: K110730
Trade/Device Name: Monaco RTP System Regulation Number: 21 CFR 892.5050 Regulation Name: Medical charged-particle radiation therapy system Regulatory Class: II Product Code: MUJ Dated: May 10, 2011 Received: May 12, 2011
#### Dear Ms. Stinson:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. 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.
If your device is classified (see above) into class II (Special Controls), it may be subject to such additional controls. Existing major regulations affecting your device can be found in. Title 21, Code of Federal Regulations (CFR), Parts 800 to 895. 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 Parts 801 and 809); medical device reporting (reporting of
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medical device-related adverse events) (21 CFR 803); and good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820). This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Parts 801 and 809), please contact the Office of In Vito Diagnostic Device Evaluation and Safety at (301) 796-5450. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
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/cdrh/industry/support/index.html.
Sincerely Yours,
Mary Pastel
Mary S. Pastel, Sc.D. Director Division of Radiological Devices Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health
Enclosure
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# Indication for Use
510(k) Number (if known): K110730
Device Name: Monaco RTP System
Indication for Use:
The Monaco system is used to make treatment plans for patients with prescriptions for external beam radiation therapy. The system calculates dose for photon treatment plans and displays, on-screen and in hard-copy, two- or three-dimensional radiation dose distributions inside patients for given treatment plan set-ups.
The Monaco product line is intended for use in radiation treatment planning. It uses generally accepted methods for:
- contouring
- image manipulation
- simulation
- image fusion
- plan optimization
- QA and plan review
Prescription Use (21 CFR Part 801 Subpart D And/Or
Over the Counter Use (21 CFR Part 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE; CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, OIVI
Mary Stottle
Division of Badiologic Office of In Vitro
510K K116736
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.