TELSTAR MAGNETIC NAVIGATION SYSTEMS [MNS}, TELSTAR BI-PLANE DIGITAL IMAGING SYSTEM, NIOBE ELECTROPHYSIOLOGY MAPPING CATH
K013484 · Stereotaxis, Inc. · DRF · May 2, 2002 · Cardiovascular
Device Facts
Record ID
K013484
Device Name
TELSTAR MAGNETIC NAVIGATION SYSTEMS [MNS}, TELSTAR BI-PLANE DIGITAL IMAGING SYSTEM, NIOBE ELECTROPHYSIOLOGY MAPPING CATH
Applicant
Stereotaxis, Inc.
Product Code
DRF · Cardiovascular
Decision Date
May 2, 2002
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.1220
Device Class
Class 2
Indications for Use
The MNS is intended to navigate a magnetic device through tissue to designated target sites in the right and left heart and coronary vasculature by orienting the device tip in a desired direction. The Telstar™ Bi-plane Imaging System provides the utility of fluoroscopic imaging of vascular systems for applications including vascular angiography and electrophysiology (EP) studies. This x-ray system may be used stand-alone, or in conjunction with an associated Stereotaxis Magnetic Navigation System. The Niobe EP Catheter is intended for intracardiac electrophysiological recording and/or stimulation for pacing in the right heart.
Device Story
System comprises Magnetic Navigation System (MNS), Telstar Bi-plane Imaging System (TIS), and Niobe EP Catheter. MNS uses computer-controlled magnetic field generator to orient distal tip of Niobe catheter containing Neodymium-Iron-Boron magnets; enables remote physician control of catheter navigation through heart/coronary vasculature. TIS provides bi-plane fluoroscopic visualization of patient and device. Niobe catheter records electrical activity and paces right heart. Used in clinical EP/angiography settings; physician operates workstation to determine magnetic vectors via computer interface. System benefits include precise, remote-controlled navigation to target sites. Output is visual fluoroscopic guidance and electrogram data, informing clinical decision-making for cardiac interventions.
Clinical Evidence
Single-site, 20-patient clinical study. Primary endpoint: successful navigation to designated target sites. Results: 198 of 200 targets reached (99% success). Comparison: conventional catheter failed to reach RV apex in one patient. Bench testing confirmed biocompatibility and physical characteristics per FDA guidance. Preclinical animal data showed equivalent steering performance and electrogram recording quality compared to predicate Steerocath.
Technological Characteristics
MNS: computer-controlled magnetic field generator. TIS: bi-plane fluoroscopic x-ray system with rotating anode and image intensifier. Niobe Catheter: 5-8F mapping catheter, Pebax body, distal Neodymium-Iron-Boron magnets. Steering: magnetic field-induced torque. Connectivity: standalone or integrated system. Compliance: 21 CFR 1020.32 for fluoroscopic equipment.
Indications for Use
Indicated for patients requiring intracardiac electrophysiological recording, pacing, or navigation of magnetic devices within the right/left heart and coronary vasculature for angiography or EP studies.
Regulatory Classification
Identification
An electrode recording catheter or an electrode recording probe is a device used to detect an intracardiac electrocardiogram, or to detect cardiac output or left-to-right heart shunts. The device may be unipolar or multipolar for electrocardiogram detection, or may be a platinum-tipped catheter which senses the presence of a special indicator for cardiac output or left-to-right heart shunt determinations.
Predicate Devices
Catheter Research CRI Electronic Control System (K924125)
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K013484
VC
## 510(k) Summary of Safety and Effectiveness
Information supporting claims of substantial equivalence, as defined under Statement the Federal Food, Drug and Cosmetic Act, respecting safety and effectiveness is summarized below. For the convenience of the Reviewer, this summary is formatted in accordance with the Agency's final rule "... 510(k) Summaries and 510(k) Statements... " (21 CFR §807) and can be used to provide a substantial equivalence summary to anyone requesting it from the Agency.
Device
description
The Telstar™ Magnetic Navigation System [MNS] is an interventional workstation for the intravascular navigation of a magnetic device through tissue to designated target sites in the heart and coronary vasculature. It combines a bi-planar fluoroscopy system with a computer controlled magnetic field generator, to provide both visualization and control of a magnetically actuated catheter. The system employs magnetic fields to orient the catheter.
The Telstar" 14 Bi-plane Imaging System [TIS] is a digital fluoroscopic system providing bi-plane fluoroscopic clinical images of both patients and medical devices during conventional and magnetic procedures.
The Niobe™ EP Catheter is a conventional 5-8F mapping catheter modified to accommodate magnetic actuation and control. It is designed to navigate into the right heart in order to measure and record electrical activity, and to pace the heart. A separate two-conductor junction box cord is supplied to allow electrical signals to be transmitted from the sterile catheter to a nonsterile signal recorder junction box.
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## 510(k) Summary of Safety and Effectiveness, Continued
#### Magnetic Navigation System: The MNS is intended to navigate a magnetic Intended use device through tissue to designated target sites in the right and left heart and coronary vasculature by orienting the device tip in a desired direction.
Telstar Bi-plane Imaging System: Provides the utility of fluoroscopic imaging of vascular systems for applications including vascular angiography and electrophysiology (EP) studies. This x-ray system may be used standalone, or in conjunction with an associated Stereotaxis Magnetic Navigation System.
Niobe EP Catheter: The EP Catheter is intended for intracardiac electrophysiological recording and/or stimulation for pacing in the right heart.
The MNS, TIS, and Niobe Catheter are substantially equivalent to the Substantial equivalence following cleared medical devices:
| Stereotaxis Device | Predicate Device | Predicate 510(k) No. |
|------------------------------------|-------------------------------------------------------|----------------------|
| MNS | Catheter Research CRI<br>Electronic Control<br>System | K924125 |
| Telstar Bi-plane<br>Imaging System | OEC Medical Systems<br>IMDIS | K974355 |
| Niobe Catheter | EP Technologies<br>Steerocath | K900765 |
### Technological characteristics
The Magnetic Navigation System employs application of magnetic fields to orient the distal tip of a magnetically actuated catheter. The TIS provides visualization through standard fluoroscopy. The Niobe Catheter is an electrophysiology mapping catheter designed to accommodate magnetic actuation and control.
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## 510(k) Summary of Safety and Effectiveness, Continued
Device comparisons steering control The following is a comparison of the key features of the MNS vs. the predicate device, the CRI Electronic Control System, K924125.
| Device<br>Characteristics | MNS | CRI System |
|------------------------------------------------------------------------------|-----|------------|
| Direct contact with patient tissue | No | No |
| Remote tableside physician control of steerable<br>device distal orientation | Yes | Yes |
| Electronic/computer control of steerable device<br>distal orientation | Yes | Yes |
| Conducted under fluoroscopic visualization | Yes | Yes |
| Automated advancement of the steerable device | No | Yes |
Device comparisons -Imaging
The following is a comparison of the key features of the Telstar Bi-plane Imaging System vs. the predicate device, the OEC Medical Systems IMDIS, K974355.
| Device<br>Characteristics | Bi-plane Imaging<br>System | OEC Medical Systems<br>IMDIS |
|---------------------------|----------------------------|------------------------------|
| Imaging | Fluoroscopic | Fluoroscopic & spot-film |
| Mobility | No | Yes |
| Pulsed fluoro | 7.5, 15, 30 pulses/sec | 2, 4, 8, 15 pulses/sec |
| Pulsed cardiac | 15, 30 pulses/sec | 8, 15, 30 pulses/sec |
| X-ray tube assembly | Rotating anode | Rotating anode |
| Image intensifier | Yes | Yes |
| Monitor | Quad 15" | Dual 16" |
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# 510(k) Summary of Safety and Effectiveness, Continued
Device comparisons — Catheters
The following is a comparison of the key features of the Niobe Catheter vs. the predicate device, the EP Technologies Steerocath, K900765.
| Device<br>Characteristics | Niobe EP Catheter | EP Technologies<br>Steerocath |
|--------------------------------------------------------------|----------------------------------------------------------------------|-------------------------------------------------------------------------------------------|
| Direct patient contact | Yes | Yes |
| Single use | Yes | Yes |
| Catheter body size/length | 5-8 French/130 cm | 6 French/100, 130 cm |
| Catheter body<br>composition | Poly Ether Block Amide<br>(Pebax) | Nylon |
| Mechanism of catheter<br>advancement/retraction | Direct physician control via<br>physical manipulation | Direct physician control<br>via physical manipulation |
| Mechanism of distal tip<br>orientation (steering<br>control) | Physician-determined<br>magnetic vectors via a<br>computer interface | Physical manipulation via<br>a thumbwheel lever at the<br>proximal end of the<br>catheter |
| Distal tip | Contains Neodymium-Iron-<br>Boron magnets | No magnets |
| Articulation wires (stylets)<br>within catheter | No | Yes |
| Mechanism of steering<br>orientation | Magnetic field-induced<br>torque | Physically induced torque |
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9.5
# 510(k) Summary of Safety and Effectiveness, Continued
| Physical testing | Testing of the EP Catheter was performed in accordance with the FDA<br>"Electrode Recording Catheter Preliminary Guidance" (March, 1995). The<br>catheter met or exceeded all requirements for biocompatibility and physical<br>characteristics. |
|----------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | The Bi-plane X-ray System is designed and tested in compliance with the<br>requirements of 21 CFR §1020.32 (Fluoroscopic Equipment). |
| Preclinical<br>animal<br>performance<br>data | The MNS was used to steer the Niobe EP Catheter to designated sites within<br>the canine heart. The ability of the Niobe EP Catheter and the predicate<br>Steerocath to steer to the target sites was equivalent. Both the Niobe EP<br>Catheter and Steerocath recorded clinically acceptable, comparable,<br>intracardiac electrograms at each site. |
| Clinical<br>performance<br>data | Clinical evaluation was carried out in a single site, 20 patient study to confirm<br>the safety and effectiveness of the MNS, TIS, and Niobe Catheter. |
| | Successful navigation of the catheter was achieved to 198 of 200 designated<br>targets in the 20 patients. The conventional marketed catheter also employed<br>was not able to reach the RV apex in one of the two patients. |
| | The Stereotaxis Magnetic Navigation System, Telstar Bi-plane Imaging<br>System, and Niobe EP Catheter were demonstrated to be substantially<br>equivalent to their respective predicate devices. |
| Contact | Peter A. Takes, Ph.D., RAC<br>Director, Clinical & Regulatory Affairs<br>Stereotaxis, Inc.<br>4041 Forest Park Avenue<br>St. Louis, Missouri 63108<br>Ph. 314-615-6964<br>Fax 314-615-6912 |
| Date | April 29, 2002 |
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### DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/5/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo is circular and contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. In the center of the logo is a stylized image of three human profiles facing to the right.
#### Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Y 1 5 2002
Peter A. Takes, Ph.D., RAC Director Clinical and Regulatory Affairs Stereotaxis, Inc. 4041 Forest Park Avenue St. Louis, Missouri 63108
#### Re: K013484
Trade Name: Telstar™ Magnetic Navigating System, Telstar™ Bi-plane Imaging System and Niobe™ EP Catheter Regulation Number: 21 CFR 870.1290, 892.1650, and 870.1220
Regulation Name: Steerable Catheter Control System, Image-Intensified Fluoroscopic X-ray System, and Electrode Recording Catheter
Regulatory Class: Class II (two) Product Code: DXX, MQB, and DRF Dated: February 1, 2002 Received: February 4, 2002
Dear Dr. Takes:
This letter corrects our substantially equivalent letter of May 2, 2002, regarding the 510(k) number written in the Indications for Use Statement. That number was erroneously written as K01384 although it should have been K013484. Additionally, a newer product code, MQB instead of JAA, has been chosen for the Telstar™ Bi-plane Imaging System to reflect the use of solid state imagers in the device.
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). 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.
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## Page 2 - Peter A. Takes, Ph.D., RAC
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); good manufacturing practice requirements as set Errt 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.
This letter will allow you to continue 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 Part 801 and additionally Part 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4646. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer Assistance at their toll free number (800) 638-2041 or at (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html.
Sincerely yours,
Donna-Bea Tillman, Ph.D. Acting Director Division of Cardiovascular and Respiratory Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use Statement
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| Statement - MNS | Indications for Use Statement: |
|-------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | 510(k) Number: K013484 |
| | Device Name: Telstar™ Magnetic Navigation System [MNS] |
| | Indications for Use: The MNS is intended to navigate a magnetic device through tissue to designated target sites in the right and left heart and coronary vasculature by orienting the device tip in a desired direction. |
| Statement - Bi-plane Imaging System | Indications for Use Statement: |
| | 510(k) Number: K013484 |
| | Device Name: Telstar™ Bi-plane Imaging System [TIS] |
| | Indications for Use: The Telstar™ Bi-plane Imaging System provides the utility of fluoroscopic imaging of vascular systems for applications including vascular angiography and electrophysiology (EP) studies. This x-ray system may be used stand-alone, or in conjunction with an associated Stereotaxis Magnetic Navigation System |
| Statement - Niobe Catheter | Indications for Use Statement: |
| | 510(k) Number: K013484 |
| | Device Name: Niobe™ EP Catheter |
| | Indications for Use: The Niobe EP Catheter is intended for intracardiac electrophysiological recording and/or stimulation for pacing in the right heart. |
| Prescription Use: | X |
Division of Cardiovascular & Respiratory Devices
510(k) Number K013484.
:
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.