K972798 · Sometec, Inc. · DPW · Feb 24, 1998 · Cardiovascular
Device Facts
Record ID
K972798
Device Name
DYNEMO 3000
Applicant
Sometec, Inc.
Product Code
DPW · Cardiovascular
Decision Date
Feb 24, 1998
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.2100
Device Class
Class 2
Attributes
Pediatric
Indications for Use
Non-invasive, continuous, real-time measurement and monitoring of the aortic blood flow for adult and pediatric patients under anesthesia and/or in intensive care. Derivation of real-time composite hemodynamic profile (aortic blood flow, arterial pressures, heart rate, stroke volume in the aorta, end-tidal CO2 pressure, systemic vascular resistances for aortic circuit, systolic time intervals), providing indications of cardiovascular status.
Device Story
DYNEMO 3000 is a non-invasive hemodynamic monitor for anesthesiologists and intensive care physicians. It uses a transesophageal probe with two ultrasonic transducers: a 10 MHz M-Mode transducer for aortic diameter and a 5 MHz Doppler velocimeter for blood velocity. The probe is inserted trans-orally or trans-nasally and stabilized via an inflatable silicone balloon sheath. The device integrates these ultrasound inputs with external peripheral monitor data (ECG, non-invasive blood pressure, capnograph) to calculate and display real-time hemodynamic parameters including aortic blood flow, stroke volume, systemic vascular resistance, and systolic time intervals. The system provides continuous monitoring to assist clinicians in assessing cardiovascular status and guiding clinical decision-making for anesthetized or critically ill patients.
Clinical Evidence
No clinical data provided; substantial equivalence is based on technical comparison and performance specifications of the ultrasound transducers and hemodynamic monitoring capabilities.
Technological Characteristics
System includes main console, transesophageal probe, and disposable silicone balloon sheath. Sensing: 10 MHz M-Mode transducer (aortic diameter) and 5 MHz pulsed Doppler transducer (velocity). Connectivity: Interfaces with external ECG, blood pressure, and capnograph monitors. Power: 100-240V. Software: Microprocessor-based system for real-time data integration and display. Sterilization: Disposable single-use sheaths.
Indications for Use
Indicated for adult and pediatric patients under anesthesia or in intensive care requiring non-invasive, continuous hemodynamic monitoring of aortic blood flow and cardiovascular status. Contraindicated in patients with oro-pharyngeal malformations, esophageal distortions, aortic coarctation, or esophageal carcinoma.
Regulatory Classification
Identification
A cardiovascular blood flowmeter is a device that is connected to a flow transducer that energizes the transducer and processes and displays the blood flow signal.
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K972798
#### SMDA Summary of Safety and Effectiveness - "510(k) Summary" 10.
#### FEB 2 4 1998
- A. Submittor Information Sponsor:
SOMETEC, Inc. c/o Interactive Consulting Inc. 70 Walnut Street Wellesley, MA 02181 (617) 239-8108 (617) 674-2002 Fax
- SOMETEC Manufacturer: 60 rue de Wattignies 75012 Paris, FRANCE
011-331-40-28-57-90 Telephone:
Contact Person: Jean-Luc Boulnois, Ph.D. President
Date Prepared: July 17, 1997
#### B. Device Identification
Common/Usual Name Proprietary Name:
Aortic Blood Flow Monitor DYNEMO 3000
- C. Identification of Predicate Device(s)
The DYNEMO 3000 is substantially equivalent to the following previously cleared and currently marketing devices:
> Hewlett Packard HP 21362B (K884395) Datascope ACCUCOM (K851426) Deltex EDM (K951369)
#### D. Device Description
The DYNEMO 3000 is a non-invasive hemodynamic diagnostic device designed to provide the anesthesiologist, cardiologist, and intensive care physician with a noninvasive continuous hemodynamic profile derived from measurement and monitoring of the aortic blood flow (ABF) in real time. The DYNEMO 3000 is designed to operate in a clinical setting in which an adult or pediatric patient is under anesthesia and/or in intensive care. This type of monitoring device also offers the anesthesiologist and intensive care physician the capability of tracking critical parameters providing indications on the patient's cardiovascular status.
The DYNEMO 3000's principle of operation is based on the simultaneous. realtime ultrasound measurement of aortic diameter and blood velocity, independently. This is achieved by inserting an endo-esophageal (or transesophageal) probe equipped with two (2) ultrasonic transducers is inserted into the patient's esophagus either trans-orally or trans-nasally.
The measurement of the descending aortic diameter is made through M-Mode echo ultrasonography at a 10 MHz frequency. A thin beam resulting from the 10
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MHz ultrasonic wave, produces high resolution images of the aortic walls. Through the manual rotation of the probe's distal end by the user, the M-Mode signal can be optimized, thereby providing an accurate measurement of the instantaneous aortic diameter.
A second transducer measures the Doppler signal. The 5 MHz Doppler velocimeter allows for the precise velocity measurement over the section of the aorta.
These two (2) ultrasound measurements are combined in real-time to provide an accurate measurement of the aortic blood flow (ABF) in the descending aorta. The microprocessor based DYNEMO 3000 unit communicates with external peripheral monitors including ECG, non-invasive blood pressure, and capnograph. A specialized software then synchronously combines data with that from these peripheral monitors to continuously display the composite hemodynamic profile of the patient in real time:
- · Aortic blood flow.
- · Arterial pressures,
- · Heart rate.
- · Stroke volume in aorta,
- · Total systemic vascular resistance for aortic circuit
- · Systolic time intervals, and,
- · End-tidal CO2 pressure.
The DYNEMO 3000 consists of five primary components:
- · the main console.
- · the transesophageal probe,
- · the disposable silicone sheath including an inflatable balloon,
- · the probe support, and,
- · the probe cable.
The main console provides various indicators and controls designed to lead the operator through the sequential procedures needed for the operation of the DYNEMO 3000 device. It contains a 7" screen used to display the parameters and the charts associated with the patient's ABF measurement. The console also houses the electrical components, and a data recording unit. The device operates from a 100-240V supply.
The adult and pediatric transesophageal probe is comprised of a flexible "insertion tube", a sensor tip, and a mechanical head.
The flexible "insertion tube" is used for mechanical and electrical connection between the mechanical head and the sensors. It is fitted with a sliding O ring indicator to mark the depth of insertion. A cable located inside of the insertion tube can rotate along its axis without movement of the outer casing.
The sensor tip, comprises of two (2) piezo-electric transducers.
The mechanical head rotates axially with an index that moves in front of another reference index located on the fixed section. This constitutes the onentation mechanism of the ultrasound transducers. A fixed section supports a lock and tap for filling and emptying a silicone balloon sheath. This section also permits to lock the transesophageal probe to the flexible probe support.
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A single-use, disposable adult or pediatric balloon sheath is chosen according to the selected probe, and the transesophageal probe is inserted inside the balloon sheath which then covers the entire probe, including the sensor tip. When filled with de-mineralized water, the balloon sheath inflates up to the esophageal wall, immobilizes the probe into the esophagus, directs the ultrasound sensors to the aortic target, and guarantees a parallel positioning between the sensor sub-assembly and the axis of the aorta.
The mechanical head of the transesophageal probe remains fixed adjacent to the patient's head and is locked to the patient's operating table or bed with a probe support.
#### E. Substantial Equivalence
The technical characteristics are almost identical to those of the Hewlett Packard HP21362B (K884395), the Datascope ACCUCOM (K851426), and the Deltex EDM (K951369) previously cleared predicate devices. Refer to Tables A, B, and C for a comparison of these predicate devices. Differences that exist between these devices in terms of technical specifications, ultrasonic technology, functions, performances, intended use, and methods of application, do not affect the relative safety or effectiveness of the DYNEMO 3000 device.
The intended use for the DYNEMO 3000 device, as with the previously cleared devices, is to provide the anesthesiologist, cardiologist and intensive care physician with
- . a non-invasive, continuous real-time measurement and monitoring of the aortic blood flow for adult or pediatric patients under anesthesia and/or in intensive care;
- . The derivation of real-time composite hemodynamic profile providing indications on the patient's cardiovascular status.
The composite hemodynamic profile consists of the following:
- · Aortic blood flow.
- · Arterial pressures,
- · Heart rate,
- · Stroke volume in the aorta.
- · Total Systemic vascular resistances for aorta circuit,
- · Systolic time intervals, and,
- · End-tidal CO2 pressure.
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## TABLE A: Equivalence Table: Performance Data
## Non-Invasive Transesophageal Pulsed Doppler and Echographic Devices
| | Hewlett Packard<br>HP 21362B | Datascope<br>ACCUCOR | Deltex<br>EDM | Sometec<br>DYNEMO 3000 |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------|
| Transesophageal probe<br>Adult probe length (cm)<br>Adult probe diameter (mm)<br>Distal tip diameter (mm)<br>Pediatric probe length (cm)<br>Pediatric probe diam. (mm)<br>Distal tip diameter (mm) | 100<br>9.8<br>11.0<br>100<br>9.8 size permitting<br>11.0 | 76<br>7.9<br>7.9<br>No pediatric probe<br>-<br>- | 80<br>6<br>6<br>No pediatric probe<br>-<br>- | 61<br>7<br>7<br>35<br>5<br>5 |
| Pulsed Doppler Transducer<br>Center frequency (MHz)<br>Pulse duration (μs)<br>Entry beam diameter (mm)<br>Pulse rep. frequency (kHz)<br>Intensity Ispta (mW/cm²) | 5<br>0.74<br>10<br>12.9<br>184 | 2.5<br>34<br>6.0<br>5.9<br>100 | 4<br>17<br>Continuous<br>100 | 5<br>11<br>4<br>12.4<br>165 |
| M-mode Echograph<br>Center frequency (MHz)<br>Pulse duration (μs)<br>Entry beam diameter (mm)<br>Pulse rep. frequency (Hz)<br>Intensity Ispta (mW/cm²) | 5<br>0.28<br>10<br>3.9<br>35 | None | None | 10<br>0.225<br>3<br>46.9<br><1 |
| Measurement Ranges<br>Adult Probe<br>Blood Flow Velocity (cm/sec)<br>Aortic Diameter (mm)<br>Cardiac Output (l/min)<br>Aortic Blood Flow (l/min) | Not available | 10-300<br>None<br>0-20<br>- | 10-220<br>None<br>0-20 estimated<br>- | 10-196<br>7.9-48<br>Not measured<br>0.3-20 |
| Pediatric Probe<br>Blood Flow Velocity (cm/sec)<br>Aortic Diameter (mm)<br>Cardiac Output (l/min)<br>Aortic Blood Flow (l/min) | Not available | None<br>-<br>-<br>- | None<br>-<br>-<br>- | 10-196<br>3-36<br>Not measured<br>0-20 |
| | Hewlett Packard<br>HP 21362B | Datascope<br>ACCUCOM | Deltex<br>EDM | Sometec<br>DYNEMO 3000 |
| Transesophageal probe<br>Flexible shaft<br>Adult probe sheath<br>Pediatric probe sheath<br>Sheath material<br>Positioning balloon<br>Rotatable transducer(s) | Yes<br>Recommended<br>Latex<br>No<br>Yes | Yes<br>No<br>No<br>No: entire probe | Yes<br>Single use probe<br>No<br>No: entire probe | Yes<br>Single use sheath<br>Single use sheath<br>Silicone<br>Yes Adult $\phi$ 18 mm<br>Pediatric $\phi$ 8/12<br>mm<br>Yes |
| Operating Mode | | | | |
| Continuous flow monitor<br>Single beat measurement<br>Cardiac Output calibration | Yes<br>Yes<br>None | Yes<br>Yes<br>By suprastemal notch/<br>By entering known CO | Yes | No |
| Aortic diameter | M-mode measurement | Nomogram (height,<br>weight, age, sex) | Nomogram (height,<br>weight, age, sex) | M-mode<br>measurement |
| Blood pressure input<br>ECG signal input<br>End-tidal CO2 input | | Automatic or manual<br>None<br>None | None<br>None<br>None | Automatic<br>Automatic<br>Automatic |
| Display Ranges | Not available | | | |
| Heart Rate Sensing (b/mn)<br>Flow Velocity (cm/sec)<br>Cardiac Output (l/min)<br>Aortic Blood Flow (l/mn)<br>Stroke Volume (ml) aorta<br>Mean blood pressure(mm/Hg)<br>Systemic vascular resistance<br>Systolic time intervals | | 30-200<br>10-300<br>0-20<br>0-300<br>External monitor range<br>0-9990 | 30-200<br>10-220<br>0-20 estimated<br>0-300 estimated<br>External monitor range<br>Flow time/ Peak velocity | 34-230<br>10-117<br>0-20<br>3-150<br>35-240<br>300-15000<br>PEPI: 75-240<br>LVETI: 250-600 |
| Screen display | | | | |
| Doppler signal trace<br>Aortic walls separation trace<br>Composite numerical<br>hemodynamic profile | Yes<br>Yes | Yes<br>No<br>HR, CO, CI, LVET<br>TSVR | Yes<br>No<br>HR, CO, SV, MAP<br>Flow time Peak velocity<br>Accelrtn | Yes<br>Yes<br>HR, ABF, Sva, ABP,<br>TSVR, PEPI, LVETI<br>PetCO2, Diam |
| Parameter trends | | No | Yes | Yes |
| Doppler audio confirmation<br>Color screen<br>Patient analysis software | Yes | No<br>Monochrome<br>No | Yes<br>Color<br>No | Yes<br>Monochrome<br>DYNESOFT |
| | Hewlett Packard<br>HP 21362B | Datascope<br>ACCUCOM | Deltex<br>EDM | Sometec<br>DYNEMO 3000 |
| Transesophageal probe | | | | |
| Target | Heart & vessels | Aorta | Aorta | Aorta |
| Measured parameter(s) | Blood flow velocities<br>in heart & vessels<br>Anatomic physiologic<br>parameters<br>of heart & vessels | Cardiac Output | Cardiac Output | Aortic Blood Flow |
| Patient population<br>Adults/ Pediatrics | Adults and Pediatrics<br>(size permitting) | Adults | Adults | Adults & Pediatrics |
| Patient status | Anesthetized patients<br>Awake patients | Anesthetized patients<br>ICU patients | Anesthetized patients<br>High risk patients<br>Critically ill patients | Anesthetized patients<br>ICU patients |
| Intended Use | Non-invasive<br>cardiac studies | Non-invasive,<br>continuous cardiac<br>output monitoring | Non-invasive,<br>cardiac function<br>monitoring | Non-invasive,<br>continuous aortic blood<br>flow monitoring |
| Contraindications | Existing gastro-<br>esophageal<br>abnormalities | Esophageal<br>abnormalities | Esophageal<br>abnormalities | Oro-pharyngeal<br>malformations<br>Esophageal distortions<br>Aortic coarctation<br>Esophageal carcinoma |
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## TABLE B: Equivalence Table: Technical Features
# Non-Invasive Transesophageal Pulsed Doppler and Echographic Devices
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## TABLE C: Equivalence Table: Clinical Characteristics
## Non-Invasive Transesophageal Pulsed Doppler and Echographic Devices
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Image /page/6/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES · USA" around the perimeter. Inside the circle is an abstract symbol that resembles an eagle or bird in flight, with stylized wings and tail feathers.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
FEB 2 4 1998
Jean-Luc Boulnois, Ph.D. President & CEO Sometec, Inc. 92 Montvale Avenue-Suite 3150 Stoneham, MA 02180
Re : K972798 DYNEMO 3000 (Cardiac Output Monitor) Dated: November 24, 1997 Received: November 25, 1997 II Regulatory class: 21 CFR 870.2100/Procode: 74 DPW 21 CFR 870.2300/Procode: 74 DPT
Dear Dr. Boulnois:
We have reviewed your section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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. You may, therefore, market the device, subject to the general controls provisions Act (Act). The general controls provisions of the Act include requirements for registration, listing of devices, good manufacturing practices, labeling, and prohibitions against misbranding and adulteration.
This determination of substantial equivalence applies to the following transducers intended for use with the DYNEMO 3000 Cardiac Output Monitor, as described in your premarket notification:
#### Transducer Model Number
Adult Model 200-018 Pediatric Model 200-019
If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval) it may be subject to such Existing major regulations affecting your device can be additional controls. found in the Code of Federal Regulations, Title 21, Parts 800 to 895. તે substantially equivalent determination assumes compliance with the Good Manufacturing Practice requirement, as set forth in the Quality System Regulation (QS) for Medical Devices: General (GMP) regulation (21 CFR Part 820) and that, through periodic QS inspections, the FDA will verify such Failure to comply with the GMP regulation may result in assumptions. regulatory action. In addition, the Food and Drug Administration (FDA) may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification does not affect any obligation you may have under sections 531 and 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.
This determination of substantial equivalence is granted on the condition that prior to shipping the first device, you submit a postclearance special report. This report should contain complete information, including acoustic output measurements based on production line devices, requested in Appendix G,
(enclosed) of the Center's September 30, 1997 "Information for Manufacturers Seeking Marketing Clearance of Diagnostic Ultrasound Systems and Transducers." If the special report is incomplete or contains unacceptable values (e.g.,
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Page 2 - Jean-Luc Boulnois, Ph.D.
acoustic output greater than approved levels), then the 510(k) clearance may not apply to the production units which as a result may be considered adulterated or misbranded.
The special report should reference the manufacturer's 510(k) number. It should be clearly and prominently marked "ADD-TO-FILE" and should be submitted in duplicate to:
> Food and Drug Administration Center for Devices and Radiological Health Document Mail Center (HFZ-401) 9200 Corporate Boulevard Rockville, Maryland 20850
This letter will allow you to begin marketing your device as described in your 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 market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4591. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its tollfree number (800) 638-2041 or at (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html".
If you have any questions regarding the content of this letter, please contact Rodrigo C. Perez at (301) 594-1212.
Sincerely yours,
for
Yamil G. Kogan
Lillian Yin, Ph.D.
Director, Division of Reproductive, Abdominal, Ear, Nose and Throat, nd Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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510(k) Number (if known): K972798
Device Name: DYNEMO 3000
Indications for Use:
- 1. Adults (Transesophageal Probe Model 200-018)
- Non-invasive, continuous, real-time measurement and monitoring of the . aortic blood flow for adult patients under anesthesia and/or in intensive care.
- Derivation of real-time composite hemodynamic profile (aortic blood flow, . arterial pressures, heart rate, stroke volume in the aorta, end-tidal CO2 pressure, systemic vascular resistances for aortic circuit, systolic time intervals), providing indications of cardiovascular status.
- 2. Pediatrics (Transesophageal Probe Model 200-019)
- Non-invasive, continuous, real-time measurement and monitoring of the ....... . aortic blood flow for pediatric patients under anesthesia and/or in intensive care.
- Derivation of real-time composite hemodynamic profile (aortic blood flow, . arterial pressures, heart rate, stroke volume in the aorta, end-tidal CO2 pressure, systemic vascular resistances for aortic circuit, systolic time intervals), providing indications of cardiovascular status.
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH. Office of Device Evaluation (ODE)
David A. Seymour
(Division Sign-Off) Division of Reproductive, Abdominal, ENT, and Radiological Devic
510(k) Number K972798
Prescription Use (Per 21 CFR 801.109)
OR
Over-the Counter Use
(Optional Format 1-2-96)
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4 Ultrasound Device Indications Statement Page of
| 510(k) Number (if known): | K972798 |
|---------------------------|-----------------------------------|
| Device Name: | DYNEMO 3000 (Adult Model 200-018) |
Fill out one form for each ultrasound system and each transducer.
Diagnostic ultrasound imaging or fluid flow analysis of the Intended Use: human body as follows:
Mode of Operation
| Clinical<br>Application | A | B | M | PWD | CWD | Color<br>Doppler | Power<br>(Amplitude)<br>Doppler | Color<br>Velocity<br>Imaging | Combined<br>(Specify) | Other<br>(Specify) |
|---------------------------------|---|---|---|-----|-----|------------------|---------------------------------|------------------------------|-----------------------|--------------------|
| Ophthalmic | | | | | | | | | | |
| Fetal | | | | | | | | | | |
| Abdominal | | | | | | | | | | |
| Intra-operative<br>(Specify) | | | | | | | | | | |
| Intra-operative<br>Neurological | | | | | | | | | | |
| Pediatric | | | | | | | | | | |
| Small Organ<br>(Specify) | | | | | | | | | | |
| Neonatal Cephalic | | | | | | | | | | |
| Adult Cephalic | | | | | | | | | | |
| Cardiac | | X | | | | | | | | |
| Trans-esophageal | | X | | | | | | | | |
| Trans-Rectal | | | | | | | | | | |
| Trans-Vaginal | | | | | | | | | | |
| Trans-Urethral | | | | | | | | | | |
| Intra-Luminal | | | | | | | | | | |
| Peripheral<br>Vascular | | | | | | | | | | |
| Laparoscopic | | | | | | | | | | |
| Musculo-Skeletal | | | | | | | | | | |
| Other (Specify) | | | | | | | | | | |
| Additional Comments: | | | | | | | | | | |
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF MEEDED! Concurrence of CDRH, Office of Device Evaluation (ODE)
> (Division Sign-Off) Division of Reproductive, Abdominal, ENT, and Radiological De 510(k) Number
Prescription Use (Per 21 CFR 801.109)
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510(k) Number (if known):__ K972798 DYNEMO_3000 Device Name: _______________
Fill out one form for each ultrasound system and each transducer.
Intended Use: Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows:
| Clinical<br>Application | Mode of Operation | | | | | | Color<br>Velocity<br>Imaging | Combined<br>(Specify) | Other<br>(Specify) |
|---------------------------------|-------------------|---|---|-----|-----|------------------|------------------------------|-----------------------|--------------------|
| | A | B | M | PWD | CWD | Color<br>Doppler | | | |
| Ophthalmic | | | | | | | | | |
| Fetal | | | | | | | | | |
| Abdominal | | | | | | | | | |
| Intra-operative<br>(Specify) | | | | | | | | | |
| Intra-operative<br>Neurological | | | | | | | | | |
| Pediatric | | | | | | | | | |
| Small Organ<br>(Specify) | | | | | | | | | |
| Neonatal Cephalic | | | | | | | | | |
| Adult Cephalic | | | | | | | | | |
| Cardiac | | | X | | | | | | |
| Trans-esophageal | | | | | X | | | | |
| Trans-Rectal | | | | | | | | | |
| Trans-Vaginal | | | | | | | | | |
| Trans-Urethral | | | | | | | | | |
| Intra-Luminal | | | | | | | | | |
| Peripheral<br>Vascular | | | | | | | | | |
| Laparoscopic | | | | | | | | | |
| Musculo-Skeletal | | | | | | | | | |
| Other (Specify) | | | | | | | | | |
| Additional Comments: | | | | | | | | | |
Mode of Operation
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED! Concurrence of CDRH, Office of Device Evaluation (ODE)
> (Division Sign-Off) Division of Reproductive, Abdominal, B and Radiological De
Prescription Use (Per 21 CFR 801.109)
510(k) Number
COUNTS
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.