The DOLPHIN® 3 Fluid Management System provides low viscosity liquid distension of the uterus for hysteroscopy, and monitors intrauterine pressure, fluid use and fluid deficit.
Device Story
The DOLPHIN® 3 is a hysteroscopic insufflator used in clinical settings by physicians to manage uterine distension fluid. It utilizes a two-bag system with pneumatic bladder bags (bag squeezers) within a rigid housing to maintain steady infusion pressure (40-140 mmHg). A disposable tubing set with an integrated pressure transducer delivers fluid to the hysteroscope. The device weighs fluid to calculate and display real-time fluid deficit and intrauterine pressure. It provides audible and visual alarms if pressure or fluid deficit thresholds are exceeded. By maintaining controlled distension, the device facilitates visualization during hysteroscopic procedures. The system supports 1, 2, or 3-liter fluid bags.
Hysteroscopic insufflator; pneumatic bladder bag pump system; integrated pressure transducer; load cell-based fluid weighing; LCD/LED interface; EtO-sterilized single-use tubing; compliant with IEC 60601-1, IEC 60601-1-2, and ISO 10993 standards.
Indications for Use
Indicated for patients undergoing hysteroscopy requiring low viscosity liquid uterine distension and monitoring of intrauterine pressure, fluid usage, and fluid deficit.
Regulatory Classification
Identification
A hysteroscopic insufflator is a device designed to distend the uterus by filling the uterine cavity with a liquid or gas to facilitate viewing with a hysteroscope.
Predicate Devices
Gyrus ACMI DOLPHIN® II Fluid Management System (K011876)
Submission Summary (Full Text)
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DOLPHIN® 3 Gyrus ACMI, Inc. 136 Turnpike Road Southborough, MA 01772 Traditional 510(k) 510/k) Summar Mar 25, 2011
## 510(k) Summary of Safety and Effectiveness Gyrus ACMI, Inc. DOLPHIN® 3 Fluid Management System
JUL 19 2011
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#### General Information
Manufacturer/Submitter:
Gyrus ACMI, Inc 136 Turnpike Rd. Southborough, MA 01772-2104
Establishment Registration Number:
3003790304
March 25, 2011
Contact Person:
Graham A. L. Baillie MS Associate Manager, Regulatory Affairs
Date Prepared:
Device Description
Classification Name:
Hysteroscopic Insufflator Class 2 21 CFR 884.1700 85 HIG
Project Name:
Trade Name(s):
Generic/Common Name:
DOLPHIN® 3
DOLPHIN® 3 Fluid Management System
Hysteroscopic Insufflator
#### Predicate Devices
Gyrus ACMI DOLPHIN® II Fluid Management System
#### Intended Use
The DOLPHIN® 3 Fluid Management System provides low viscosity liquid distension of the uterus for hysteroscopy, and monitors intrauterine pressure, fluid use and fluid deficit.
### Product Description
The DOLPHIN® 3 will be used during Hysteroscopic procedures where physicians need to monitor fluid pressure and fluid loss. The system will provide delivery of low viscosity distension fluid through a disposable tubing set that includes an integrated pressure transducer. The system will calculate and display fluid pressure and fluid deficit while providing distension of the uterus for visualization and flow. The
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DOLPHIN® 3 Gyrus ACMI, Inc. 136 Turnpike Road Southborough, MA 01772
K110852
Page 2 of 4
Traditional 510(k) Notification
510(k) Summary
Mar 25, 2011
DOLPHIN® 3 provides both audible and visual alarms if pressure levels are too high or if the user-set fluid deficit alarm levels are exceeded.
The DOLPHIN® 3 incorporates a two-bag distension fluid system that utilizes a bladder bag to provide steady pressure on (each) the fluid bags. The two bladder bags are essentially pneumatic "bag squeezers" set within a rigid housing that contains the fluid bags. The DOLPHIN® 3 fluid pump adjusts the pressure applied to the distension fluid bags by inflating or deflating the pneumatic bladder. The infusion pressure can be set by the user between 40-140 mm Hg (40 mmHg is the factory default setting at power up) The system can accommodate 1, 2 or 3 liter fluid bags, The sterile/disposable tubing set with integrated pressure transducer is used to deliver fluid from the DOLPHIN® 3 to the inflow port on the hysteroscope. The device weighs the fluid in order to calculate the deficit. Any fluid dispensed but not returned to the collection canisters is considered part of the deficit.
#### Summary Listing of Nonclinical/Bench Testing
The following performance/functional tests were conducted to verify that the subject device met specified requirements.
1) Pressure Accuracy vs Flow Rate: Illustrated the intrauterine pressure developed by the DOLPHIN®3 at various output pressures and flow rates. Comparitive testing included three different make/models of hysteroscopes. The intrauterine pressure versus flow data for the predicate and subject devices were plotted for each scope. 2) Simulated Procedure: Verify that fluid management data accuracy and alarm functions are maintained throughout a simulated procedure.
3) Load Cell Overstrain Test: Verify functionality of the mechanical Load Cell protection incorporated in the design of the DOLPHIN®3 Load cell sub assemblies (upper and lower) by applying an overstraining force on the load cells.
4) Fluid Bag and Canister Compatibility Test: The purpose of the test was to verify the equipment is compatible and functions with the recommended manufacturer's fluid bags of various sizes and recommended collection canisters.
5) Calibration Protocol: Verified functionality of the Calibration module and Calibration Verification module. Checked accuracy through the working range of all the load cells in the machine and verified the functionality of the software trigger for Passing/Failing the calibration check.
6) External Transducer Check Test. The purpose of the test was to determine the ability of the subject device to identify faulty external pressure transducers (part of the Tubing Set) due to open wiring connections.
7) Internal Pressure Transducer Check Procedure: Verify the software and hardware pressure cutout limits meet performance specifications.
8) Acoustic Level Test: In all cases alarms were measurably discernible from the pump background noise and audible to the operator.
9) Bladder Bag Inflate/Deflate Test: The purpose of the test was to verify PPS requirements for Bladder Bag inflate/deflate times and flow rates.
10) Operational Tilt Test: Determined the subject device's ability to operate and maintain fluid deficit accuracy, when subjected to an incline and tilt deviation from a normal operational position on a level floor.
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DOLPHIN® 3 Gyrus ACMI. Inc. 136 Turnpike Road Southborough, MA 01772
K110852
Page 3 of 4
Traditional 510(k) Notification
510(k) Summary
Mar 25, 2011
i 1) Dolphin 3 Splash Test: This test verified that the DOLPHIN®3 Hysteroscopic Fluid Management System will function within the Product Performance Specifications immediately after being subjected to an in-process splash of conductive solution and also function after allowing a 24 hour drying period to occur
12) Pneumatic Test Protocol: The purpose of the test was to verify pump and pneumatic circuit performance requirements.
13) Operational Environment Test: Verify (1) the subject device operates within its intended operating environment as specified in product performance specifications and (2) that the device continues to operate after exposure to vibration/shock likely to be experienced during use. Proper Dolphin operation was verified by completing the following functional tests:
- LCD and LED Initialization Tests .
- Alarms Initialization Test .
- Calibration Functional Test .
- Fluid Test .
- Inspection for Visible Damage .
14) Pressure vs. Bag Volume: This test characterizes the ability of DOLPHIN 3 to maintain pressure as the irrigation bag drains.
The following standards were referenced in electrical safety, EMC, biocompatibility and sterilization testing:
1) IEC 60601-1, Medical Electrical Equipment - Part 1: General Requirements for Safety, 1988; Amendment 1, 1991-11. Amendment 2, 1995
2) EC 60601-1-2, Medical electrical equipment - Part 1-2: General Requirements for Safety - Collateral standard: Electromagnetic Compatibility - Requirements and Tests Edition 2.1(Edition 2:2001 consolidated with Amendment 1:2004)
3) AAMI / ANSI / ISO 10993-1, Biological evaluation of medical devices -- Part 1: Evaluation and testing (2003)
4) AAMI / ANSI / ISO 10993-5, Biological evaluation of medical devices – Part 5 : Tests for In Vitro Cytoxicity (1999)
5) AAMI / ANSI / ISO 10993-7, Biological evaluation of medical devices - Part 7: Ehylene Oxide Sterilization Residuals. (2001)
6) AAMI / ANSI / ISO 10993-10, Biological evaluation of medical devices – Part 10: Tests for Irritation and Delaved-type (2002)
7) AAMI /ANSI / ISO 11135-1. Sterilization of health care products - Ethylene oxide - Part1: Requirements for the development, validation and routine control of a sterilization process for medical devices.
8) AAMI /ANSI / ISO 11607-1, Packaging for terminally sterilized medical devices -Part1: Requirements for materials, sterile barriersystems and packaging systems, 3ed (2006)
9) AAMI /ANSI / ISO 11607-2, Packaging for terminally sterilized medical devices -Part 2: Validation requirements for forming, sealing and assembly process, 1ed (2006)
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Traditional 510(k) N 510(k) Summar Mar 25, 2011
DOLPHIN® 3 Gyrus ACMI, Inc. 136 Turnpike Road Southborough, MA 01772
.
# Technological Characteristics and Substantial Equivalence
The DOLPHIN® 3 Hysteroscopic Insufflator is an upgrade to the predicate DOLPHIN® II device currently marketed by Gyrus ACMI, Inc. The DOLPHIN® 3 will be marketed with updated software, hardware, and an additional fluid distension bag. The DOLPHIN® 3 will have the identical indications as the predicate DOLPHIN® II, K011876. The software, mechanical design and tubing set have been updated to accommodate the additional fluid bag. The same bladder bag and self contained pump design, used in the DOLPHIN® II to regulate fluid pressure, is incorporated in the DOLPHIN® 3. The tubing set and integrated transducer remains a single use accessory sterilized by EtO.
In summary, the DOLPHIN® 3 is substantially equivalent to the predicate DOLPHIN® II device and presents no new questions of safety or efficacy.
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Image /page/4/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo features a stylized caduceus, a symbol often associated with medicine and healthcare, with three parallel lines that curve and flow downwards. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" is arranged in a circular pattern around the caduceus.
Food and Drug Administration 10903 New Hampshire Avenue Document Mail Center - WO66-G609 Silver Spring, MD 20993-0002
Mr. Graham Baillie Associate Manager, Regulatory Affairs Gyrus ACMI, Inc. 136 Turnpike Road SOUTHBOROUGH MA 01772
JUL 1 9 2011
Re: K110852
> Trade Name: DOLPHIN®3 Fluid Management System Regulation Number: 21 CFR \$884.1700 Regulation Name: Hysteroscopic insufflator Regulatory Class: II Product Code: HIG Dated: June 23, 2011 Received: June 24, 2011
Dear Mr. Baillie:
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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
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); medical device reporting of medical device-related
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#### Page 2
adverse events) (21 CFR 803); 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.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours.
Hubert Lenoir MD
erbert P. Lerner, M.D., Director (Acting) Division of Reproductive, Gastro-Renal and Urological Devices Office of Device Evaluation Center for Devices and Radiological Health.
#### Enclosure
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# Indications for Use
510(k) Number (if known): . K110852
Device Name: _ _ DOLPHIN® 3 Fluid Management System
Indications For Use:
The DOLPHIN® 3 Fluid Management System provides low viscosity liquid distension of the uterus for hysteroscopy, and monitors intrauterine pressure, fluid use and fluid deficit.
Prescription Use × (Part 21 CFR 801 Subpart D) AND/OR
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)
Afald Kenn
oductive. Gastro-F nal, and
Page 1 of _____1__
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.