K071966 · Insightec-Txsonics, Inc. · MOS · Sep 5, 2007 · Radiology
Device Facts
Record ID
K071966
Device Name
1.5T MRGFUS PELVIC COIL
Applicant
Insightec-Txsonics, Inc.
Product Code
MOS · Radiology
Decision Date
Sep 5, 2007
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.1000
Device Class
Class 2
Indications for Use
The Pelvic Array Coil is a receive only phased array RF coil used for obtaining diagnostic images of the pelvis, including the hips, in magnetic resonance imaging systems. The Pelvic Array Coil is designed for use with the GE 1.5T MRI systems manufactured by GE Medical Systems. The Pelvic Array Coil can be used in conjunction with the InSightec Focused UltraSound (FUS) treatment.
Device Story
MRgFUS Pelvic Coil is a receive-only, quadrature phased array RF coil; captures hydrogen nuclei excitation signals for diagnostic MR imaging of pelvis and hips. Used with GE 1.5T MRI systems; integrates with InSightec Focused UltraSound (FUS) treatment to monitor temperature via MR thermometry. Housed in rigid/semi-flexible, fire-rated, high-impact material. Operated by radiology staff in clinical settings. Output provides high-resolution images and SNR for diagnostic assessment and treatment monitoring; assists clinicians in visualizing anatomy and guiding FUS procedures.
Clinical Evidence
Bench testing only. Device performance verified against IEC 60601-1, IEC 60601-2-33, UL 94, and NEMA MS 6 standards to ensure safety, electromagnetic compatibility, and image quality (SNR/resolution).
Technological Characteristics
Receive-only, quadrature phased array RF coil. Dual-element structure. Fire-rated, high-impact, tensile-strength housing. Active and passive RF decoupling circuits. Compatible with GE 1.5T MRI systems. Standards: IEC 60601-1, IEC 60601-2-33, UL 94, NEMA MS 6.
Indications for Use
Indicated for patients requiring diagnostic MRI imaging of the pelvis and hips. Compatible with GE 1.5T MRI systems and InSightec Focused UltraSound (FUS) treatment.
Regulatory Classification
Identification
A magnetic resonance diagnostic device is intended for general diagnostic use to present images which reflect the spatial distribution and/or magnetic resonance spectra which reflect frequency and distribution of nuclei exhibiting nuclear magnetic resonance. Other physical parameters derived from the images and/or spectra may also be produced. The device includes hydrogen-1 (proton) imaging, sodium-23 imaging, hydrogen-1 spectroscopy, phosphorus-31 spectroscopy, and chemical shift imaging (preserving simultaneous frequency and spatial information).
Special Controls
*Classification.* Class II (special controls). A magnetic resonance imaging disposable kit intended for use with a magnetic resonance diagnostic device only is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.
{0}------------------------------------------------
#### 510(K) SUMMARY
SEP - 5 2007
510(K) Number K071966
# 5.1 Applicant's Name:
INSIGHTEC, LTD. 5 Nahum Heth st. Tirat Carmel, 39120 ISRAEL
#### 5.2 Contact Person:
Ori Lubin InSightec Ltd Regulatory Affairs Manager Nahum Heth St. Tirat Carmel, Israel, 39120 Tel.: 001-972-544-881-399 Email: Oril@InSightec.com
#### 5.3 Date Prepared:
July 2007
#### 5.4 Trade Name:
MRgFUS Pelvic Coil
#### 5.5 Classification Name:
Magnetic Resonance Diagnostic Device
#### 5.6 Medical Specialty:
Radiology
5.7 Product Code: MOS
5.8 Device Class: II
{1}------------------------------------------------
#### 5.9 Regulation Number:
CFR 892.1000
# 5.10Panel:
Radiology
#### 5.11Predicate Device:
Pelvic Array Coil (USA Instruments, Inc.), K033753.
#### 5.12Performance Standards:
IEC 60601-1 (1988): Medical electrical equipment - Part 1: General requirements for safety, including Amendment 1 (1991) and Amendment 2 (1995).
IEC 60601-2-33 (2002-05); Medical Electrical equipment - Part 2-33: Particular requirements for the safety of magnetic resonance equipment for medical diagnosis
UL 94; Tests for Flammability of Plastic Materials for parts in Devices and Appliance
NEMA: MS 6 Characterization of Special Purpose Coils for Diagnostic Magnetic Resonance Images
FDA Guidance for Diagnosis Submission of Premarket Notification for Magnetic Resonance Diagnostic Devices, FDA, CDRH
#### 5.13Intended Use / Indication for Use:
The Pelvic Array Coil is a receive only phased array RF coil used for obtaining diagnostic images of the pelvis, including the hips, in magnetic resonance imaging systems. The Pelvic Array Coil is designed for use with the GE 1.5T MRI systems manufactured by GE Medical Systems.
The Pelvic Array Coil can be used in conjunction with the InSightec Focused UltraSound (FUS) treatment.
#### 5.14Device Description:
The MRgFUS Pelvic Array Coil is a receive-only, quadrature phased array RF coil, used for obtaining diagnostic MR images of the pelvis, including the hips. The elements and associated circuitry are enclosed in both rigid and semi-flexible housing that is fire rated and has a high impact and tensile strength.
{2}------------------------------------------------
#### 5.15Substantial Equivalence:
The MRgFUS pelvic array Coil manufactured by InSightec is equivalent to the pelvic array coil manufactured by USAI for InSightec
The MRgFUS Coil and its predicate device also share common technological characteristics and principles of operations. Specifically, similar to its predicate, it employs the following characteristics:
- . Receive-only coil.
- A dual elements coil as a basic structure component. .
- Comparable dimensions and weight. .
- Compatibility with 1.5 T GE MRI Systems. .
- Active and passive RF Decoupling circuits. .
- . Employ hydrogen nuclei excitation for the imaging of the scanned organ.
- Operation in conjunction with the InSightec Focused UltraSound . (FUS) treatment employing MR thermometry to monitor temperature.
- Optimal Signal to Noise Ratio (SNR) and coverage and high-. resolution imaging
In addition, the MRgFUS Coil was tested to verify that it meets its specifications and conforms to the relevant recognized standards, to ensure that any minor difference between the coil and its predicate does not raise any new questions of safety and effectiveness.
Based on the safety and performance testing results, and the analysis of similarities and differences summarized above, InSightec Ltd. believes that the MRgFUS Coil is substantially equivalent to its predicate device, without raising new safety and/or effectiveness issues.
{3}------------------------------------------------
Image /page/3/Picture/0 description: The image shows a circular logo with text around the perimeter and a stylized graphic in the center. The text reads "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" in a circular arrangement. The central graphic consists of three curved, parallel lines that resemble a stylized bird or a flowing design. The logo appears to be a seal or emblem, possibly representing a government agency or organization related to health and human services in the United States.
# DEPARTMENT OF HEALTH & HUMAN SERVICES
Food and Drug Administration 9200 Corporate Blvd. Rockville MD 20850
Mr. Nadir Alikacem Pole Manager InSightec-TxSonics, Inc. 2777 Stemmons Frwy, Suite 940 DALLAS TX 75204
Re: K071966
Trade/Device Name: MRgFUS Pelvic Coil Regulation Number: 21 CFR 892.1000 Regulation Name: Magnetic resonance diagnostic device Regulatory Class: II Product Code: MOS Dated: June 8, 2007 Received: July 16, 2007
#### Dear Mr. Alikacem:
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 either class II (Special Controls) or class III (Premarket Approval), it may be subject to such 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.
Image /page/3/Picture/10 description: The image shows a circular logo with the text "1906-2006" at the top. Below the text is the acronym "FDA" in a stylized font. Underneath the acronym, the word "Centennial" is written in cursive. There are three stars below the word "Centennial". The text "Food and Drug Administration" is written around the bottom of the circle.
alating and Promoting Our
{4}------------------------------------------------
Page 2 -
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 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.
This fetter 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 Part 801), please contact the Office of Compliance at one of the following numbers, based on the regulation number at the top of this letter:
| 21 CFR 876.xxx | (Gastroenterology/Renal/Urology) | 240-276-0115 |
|----------------|----------------------------------|--------------|
| 21 CFR 884.xxx | (Obstetrics/Gynecology) | 240-276-0115 |
| 21 CFR 894.xxx | (Radiology) | 240-276-0120 |
| Other | | 240-276-0100 |
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). 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 (240) 276-3150
or at its Internet address http://www.fda.gov/cdrl/industry/support/index.html.
Sincerely yours,
Nancy C Hodgdon
Nancy C. Brogdon Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
# Indications for Use
510(k) Number (if known): K071966
Device Name: MRgFUS Pelvic Coil
#### Indications For Use:
The Pelvic Array Coil is a receive only phased array RF coil used for obtaining diagnostic images of the pelvis, including the hips, in magnetic resonance imaging systems. The Pelvic Array Coil is designed for use with the GE 1.5T MRI systems manufactured by GE Medical Systems. The Pelvic Array Coil can be used in conjunction with the InSightec Focused UltraSound (FUS) treatment.
AND/OR Prescription Use マ (Part 21 CFR 801 Subpart D)
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) Page 1 of 1
Whang
---
(Division Sign-Off)
Division of Reproductive, Abdominal and Radiological Devices 2071910 510(k) Number __
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.