The FG-36UX, Fiber Ultrasound Gastroscope, is intended to provide optical visualization of, ultrasonic visualization of, and therapeutic access to, the Upper Gastrointestinal Tract. The Upper Gastrointestinal Tract includes but is not restricted to, the organs; tissues; and subsystems: Esophagus, Stomach, Duodenum, Small Bowel, and underlying areas. The instrument is introduced per orally when indications consistent with the requirement for the procedure are observed in Adult and Pediatric patient populations.
Device Story
Fiber ultrasound gastroscope; flexible insertion tube with control body for angulation, accessory elevator, air/water delivery, suction, and working channel for biopsy. Integrates optical visualization via ocular and ultrasound transducer for imaging. Connects to EUB-5500/EUB-8500 ultrasound scanners. Used in clinical settings by physicians for endoscopic procedures. Ultrasound transducer collects ultrasonic data; signals processed by scanner for display. Enables real-time visualization and therapeutic access to upper GI anatomy; assists in biopsy and diagnostic imaging. Benefits include improved diagnostic accuracy and targeted therapeutic intervention.
Clinical Evidence
No clinical data. Substantial equivalence determination based on bench testing and comparison of specifications.
Technological Characteristics
Fiber-optic endoscope with integrated ultrasound transducer. Features flexible insertion tube, control body for 4-way angulation, accessory elevator, and working channel. Immersible design (excluding scanner connector). Connectivity via dedicated ultrasound scanner interface. Sterilization via cleaning accessories as per operator manual.
Indications for Use
Indicated for optical and ultrasonic visualization and therapeutic access to the upper gastrointestinal tract (esophagus, stomach, duodenum, small bowel, and underlying areas) in adult and pediatric patients.
Regulatory Classification
Identification
A diagnostic ultrasonic transducer is a device made of a piezoelectric material that converts electrical signals into acoustic signals and acoustic signals into electrical signals and intended for use in diagnostic ultrasonic medical devices. Accessories of this generic type of device may include transmission media for acoustically coupling the transducer to the body surface, such as acoustic gel, paste, or a flexible fluid container.
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K041396
### 510(k )Summary FG-36UX, Fiber Ultrasound Gastroscope for use with EUB-5500 and EUB-8500 Ultrasound Diagnostic Scanner
Submitter Information:
Pentax Precision Instrument Corporation (PPIC) 30 Ramland Road Orangeburg, NY, 10962 Tel: (914)-365-0700
### Name of Device:
| Trade Name | FG-36UX, Fiber Ultrasound Gastroscope |
|---------------------|------------------------------------------------------------------------------------------------------|
| Classification Name | Diagnostic Ultrasound Transducer (74JOP) {892.1570},<br>Endoscope and Accessories (78KOG) {876.1500} |
#### Predicated Device(s) Information:
| Model, Description | Manufacturer | PMN# |
|-----------------------------------------|-----------------|---------|
| FG-36UX, Fiber Ultrasound Gastroscope | PPIC | K961974 |
| EUB-5500, Ultrasound Diagnostic Scanner | Hitachi America | K032503 |
| EUB-8500, Ultrasound Diagnostic Scanner | Hitachi America | K013722 |
The FG-36UX, Fiber Ultrasound Gastroscope, can be used with any Lightsource (with the Device Description: Device Description: endoscope has a flexible insertion tube, a control body, and Umbilicus is bifurcated where one endoscope nas a nextion miscrion table a contains connections for air/water and suction. The other umbilicus Connector is connected to the ultrasound scanner. The control body includes controls for up/ down/ left/ right angulation, an accessory elevator control, air/water delivery, suction selection/ control, forward water jet port, balloon insulflation, an accessory interport, and the endoscopic image viewing occular. The device contains light banoon insurration, an accessory inter port, another to optically visualize the anatomy, and an ultrasound transducer to collect ultrasonic image data. The instrument contains a working channel through which biopsy transacer of concer annasonia mage cause the instrument is supplied with two biopsy forceps). A convex linear devices, of other us views, may of and adoced (the pulses are received and signals are passed to the array transadeer dor for display. The instrument is immersable (with the use of supplied cleaning accessories) except for the Ultrasound Scanner Connector (as described in the Endoscope operator Manual cleaning instructions).
Intended Use: The FG-36UX, Fiber Ultrasound Gastroscope, is intended to provide optical visualization of , ultrasone visualization of, and therapeutic access to, the Upper Gastrointestinal Tract. The Upper Gastrointestinal Tract includes but is not restricted to, the organs; tissues; and subsystems: Esophagus, Stomach, Duodenum, Small Bowel, and underlying areas. The instrument is introduced per orally when indications consistent with the requirement for the procedure are observed in Adult and Pediatric patient populations.
### Comparison To Predicated Device(s):
Comparison for substantial equivalence included FG-36UX literature including specifications, the identification I in submitsion for substantial of optional accessories, comparison tables were provided to illustrate of standard set componens; and devices in summary. The submission for substantial equivalence was not based on an assessment of clinical performance data.
Prepared by: Paul Silva
Signature: Paul Silva
Date: 11-25-2003
Control Number: FG-36UX.EUB-5500&8500
page I of I
Revision: a
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Image /page/1/Picture/1 description: The image is a black and white logo for the Department of Health & Human Services - USA. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized symbol that resembles three abstract human profiles or figures, stacked on top of each other.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
JUN - 9 2004
PENTAX Precision Instrument Corporation % Mr. Matthias Heinze Division Manager, Medical Division TUV Rheinland of North America 12 Commerce Road NEWTOWN CT 06470
Re: K041396
Trade Name: EUB-5500 and EUB 8500 Ultrasound Diagnostic Scanners Regulation Number: 21 CFR 892.1570 Regulation Name: Diagnostic ultrasound transducer Regulation Number: 21 CFR 876.1500 Regulation Name: Endoscope and accessories Regulatory Class: II Product Code: 90 ITX and 78 FDS Dated: May 21, 2004 Received: May 26, 2004
Dear Mr. Heinze:
We have reviewed your Section 510(k) premarket notification of intent to market the device we nave reviewed your bave 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 interslate commerce prov to may 23) been reclassified in accordance with the provisions of the Amendinents, of to devices and Cosmetic Act (Act). You may, therefore, market the device, subject to I cacral controls provisions of the Act. The general controls provisions of the Act include the general controls pro risting of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
This determination of substantial equivalence applies to the following transducers intended for This detenmination of backannal or of 00 Ultrasound Diagnostic Scanners, as described in your premarket notification:
Transducer Model Number
FG-36UX
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If your device is classified (see above) into either class II (Special Controls) or class III (PMA), II your device is classified (360 a0070) incols. Existing major regulations affecting your device EDA it may be subject to such additional confrols: "Internet 21, Parts 800 to 898 In addition, FDA can be found in the Code of Features concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean Please be advised that IDA 3 issuation of a backed complies with other requirements of the Act that FDA has made a decemination administered by other Federal agencies. You must of any Federal Statutes and regulations asnimister on the limited to: registration and listing (21 comply will an the Act stequirements, moraaling practice requirements as set
CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set CFR Part 807), labeling (21 CFR Part 820); and if applicable, the electronic forth in the quality systems (QD) regulation (Sections 531-542 of the Act); 21 CFR 1000-1050.
This determination of substantial equivalence is granted on the condition that prior to shipping I mis device, you submit a postclearance special report. This report should contain complete the first device, you submit a postolution special is based on production line devices, requested information, metuding acousine output measuremer 30, 1997 "Information for Manufacturers
in Appendix G, (enclosed) of the Center's September 30, 1997 "Information for Manufac In Appendix U, (enclosed) of the Center S Systems and Transducers." If the special Seeking Marketing Clearantee or Dragiosable values (e.g., acoustic output greater than approved report is incomplete or comains anaseeping has 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 The special report block of the 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 nonitication. The I Driving of Seation 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, please If you desire specific at not 10-19-15-11 (301) 594-4591. Additionally, for questions on the comacion and advertising of your device, please contact the Office of Compliance at (301) 594promotion and advertising or youlation entitled, "Misbranding by reference to premarket 40.77. Also, please note the regaration ther general information on your responsibilities under the notification (21 CFR Part 60777). Saot Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or at (301) 443-6597 or at its Internet address "http://www.fda.gov/cdrh/dsmamain.html".
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Page 3 - Mr. Heinze
If you have any questions regarding the content of this letter, please contact Rodrigo C. Perez at (301) 594-1212.
Sincerely yours,
Danillo. lezmon
Nancy C. Brogdon Director, Division of Reproductive, Abdominal and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure(s)
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### 510(k) Number (if known): Device Name: Ultrasound Video Gastroscope FG-36UX
## Endoscope Intended Use Statement:
Endoscope Intended Use Statement.
The FG-36UX, Fiber Ultrasound Gastroscope, is intended to provide optical visual Costrostination of I he FG-36UX, Fiber Ultrasound Oastrosope, Is intender to prest. The Upper Gastointestinal Tract, I rach visualization of, and therapedia accoss to, the Opper Ousinessmal sophagus, Stomach, Duodenum, Small,
includes but is not restricted to, the organs; tissues; and subsystems: includes but is not restrered to, the organs, insuced per orally when indications consistent with the Bower, and underlying arcas. The mistrance. In Adult and Pediatric patient populations.
# Diagnostic Ultrasound Indications For Use Statement
| System: | EUB-8500 | | | | | | |
|----------------------|-------------------------------------------------------------------------------------------------|-------------------|---|-----|-----|---------|-----------|
| Probe: | FG-36UX | | | | | | |
| | Intended Use: Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows | | | | | | |
| Clinical Application | | Mode of Operation | | | | | |
| General | Specific | B | M | PWD | CWD | Color | Amplitude |
| (Track I only) | (Track I & III) | | | | | Doppler | Doppler |
| Ophthalmic | | | | | | | |
| Fetal Imaging | Fetal | | | | | | |
| & Other | Abdominal | | | | | | |
| | Intra-operative (Spec.) | | | | | | |
| | Intra-operative (Neuro.) | | | | | | |
| | Laproscopic | | | | | | |
| | Pediatric | | | | | | |
| | Small Organ | | | | | | |
| | Neonatal Cephalic | | | | | | |
| | Adult Cephalic | | | | | | |
| | Trans-rectal | | | | | | |
| | Trans-vagina | | | | | | |
| | Trans-urethral | | | | | | |
| | Trans-esoph. (non-Card.) | | | | | | |
| | Musculo-skel. (Convent.) | | | | | | |
| | Musculo-skel. (Superfic.) | | | | | | |
| | Intra-luminal | | | | | | |
| | Endoscopy | N | N | N | | N | N |
| Cardiac | Cardiac Adult | | | | | | |
| | Cardiac Pediatric | | | | | | |
| | Trans-esophageal (card.) | | | | | | |
| | Other (spec.) | | | | | | |
| Peripheral | Peripheral vessel | | | | | | |
| Vessel | Other (Spec.) | | | | | | |
N = new application: P = previously cleared by FDA: E = added under Appendix E
(Please do not write below this line - continue on another page if needed
Concurrence of CDRH, Office of Device Evaluation (ODE)
David A. Seymann
(Division Sign-Off) Division of Reproductive, and Radiological Devices 510(k) Number
{5}------------------------------------------------
## 510(k) Number (if known): 310(k) Number (if Rhowing Video Gastroscope FG-36UX
# Endoscope Intended Use Statement:
Endoscope Intended Use Statement:
The FG-36UX, Fiber Ultrasound Gastroscope, is intended to provide optical visualization of , ultrasonic The FG-36UX, Fiber Ultrasound Gastroscope, Is incenter Pract. The Upper Gastrointestinal Tract
visualization of, and therapeutic access to, the Upper Castronics Stopher Small visualization of, and therapeutic access to, the Opper Crash and Superions Stephages, Steath, Duodenum, Small includes but is not restricted to, the organs, tissus, and assessment indications consistent with the Bowel, and underlying areas. The mstument is increases patient populations.
requirement for the procedure are observed in Adult and Pediatric patient populations.
# Diagnostic Ultrasound Indications For Use Statement
| System:<br>EUB-5500 | | | | | | | |
|-------------------------------------------------------------------------------------------------|-----------------------------|-------------------|---|-----|-----|------------------|----------------------|
| Probe: | FG-36UX | | | | | | |
| Intended Use: Diagnostic ultrasound imaging or fluid flow analysis of the human body as follows | | | | | | | |
| Clinical Application | | Mode of Operation | | | | | |
| General<br>(Track I only) | Specific<br>(Track I & III) | B | M | PWD | CWD | Color<br>Doppler | Amplitude<br>Doppler |
| Ophthalmic | | | | | | | |
| Fetal Imaging<br>& Other | Fetal | | | | | | |
| | Abdominal | | | | | | |
| | Intra-operative (Spec.) | | | | | | |
| | Intra-operative (Neuro.) | | | | | | |
| | Laproscopic | | | | | | |
| | Pediatric | | | | | | |
| | Small Organ | | | | | | |
| | Neonatal Cephalic | | | | | | |
| | Adult Cephalic | | | | | | |
| | Trans-rectal | | | | | | |
| | Trans-vagina | | | | | | |
| | Trans-urethral | | | | | | |
| | Trans-esoph. (non-Card.) | | | | | | |
| | Musculo-skel. (Convent.) | | | | | | |
| | Musculo-skel. (Superfic.) | | | | | | |
| | Intra-luminal | | | | | | |
| | Endoscopy | N | N | N | N | N | N |
| Cardiac | Cardiac Adult | | | | | | |
| | Cardiac Pediatric | | | | | | |
| | Trans-esophageal (card.) | | | | | | |
| | Other (spec.) | | | | | | |
| Peripheral<br>Vessel | Peripheral vessel | | | | | | |
| | Other (Spec.) | | | | | | |
N = new application: P = previously cleared by FDA: E = added under Appendix E
(Please do not write below this line - continue on another page if needed
Concurrence of CDRH, Office of Device Evaluation (ODE)
David A. Lynam
(Division Sign-Off) Division of Reproductive, Abdomin and Radiological Devices 510(k) Number _
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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.
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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.
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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.