MEDELA DOMINANT 35 C/I SECRETION AND SURGICAL ASPIRATOR
K043544 · Medela AG · BTA · Jan 7, 2005 · General, Plastic Surgery
Device Facts
Record ID
K043544
Device Name
MEDELA DOMINANT 35 C/I SECRETION AND SURGICAL ASPIRATOR
Applicant
Medela AG
Product Code
BTA · General, Plastic Surgery
Decision Date
Jan 7, 2005
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4780
Device Class
Class 2
Attributes
Therapeutic, 3rd-Party Reviewed
Indications for Use
The Dominant 35 c/i is intended to be used for a variety of suctioning procedures including nasopharyngeal, tracheal, surgical, wound and thoracic drainage (must be used only in combination with a chest drainage unit with a built in flow adjustment valve). The intermittent suction mode is intended to be used for gastrointestinal suction procedures. The pump is highly suitable for gastrointestinal suction procedures and for all routine suctioning procedures involving surgical and bodily fluids, gases, blood, secretions, tissue (including bone) and infectious materials in operating theatres, emergency rooms, physicians offices, at the patients bedside and is also to perform wound and thoracic drainage. A comprehensive range of accessories makes the Dominant 35 c/i ideally suited to a wide range of medical applications.
Device Story
AC-powered suction pump; utilizes piston-cylinder system to generate vacuum for aspiration of fluids, gases, and tissues. Provides constant suction (35 L/min) or intermittent suction (8 L/min; 16s ON/8s OFF). Features vacuum gauge, self-bleeding membrane regulator, and overflow safety device. Operated by clinicians in OR, ER, or bedside via foot switches or panel controls. Jar holder maintains jar 20 cm above patient level. Output is vacuum pressure; healthcare providers monitor via gauge and adjust settings to facilitate drainage or fluid removal. Benefits include effective clearance of surgical/bodily fluids and support for thoracic/gastrointestinal procedures.
Clinical Evidence
No clinical data. Substantial equivalence based on technological characteristics and design similarities to predicate devices.
Technological Characteristics
AC-powered piston-cylinder suction pump. Includes self-bleeding membrane vacuum regulator, vacuum gauge (kPa/mmHg), and polysulfone safety device with overflow protection. Mobile stand with 10x25mm rails and antistatic castors. Constant mode (35 L/min) and intermittent mode (8 L/min).
Indications for Use
Indicated for aspiration and removal of surgical fluids, tissue (including bone), gases, bodily fluids (including vomit), or infectious materials from wounds, airway, or respiratory support systems. Used for nasopharyngeal, tracheal, surgical, gastrointestinal, wound, and thoracic drainage in constant or intermittent modes. For use in OR, ER, physician offices, or bedside.
Regulatory Classification
Identification
A powered suction pump is a portable, AC-powered or compressed air-powered device intended to be used to remove infectious materials from wounds or fluids from a patient's airway or respiratory support system. The device may be used during surgery in the operating room or at the patient's bedside. The device may include a microbial filter.
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Applicant: Medela AG, Laettichstrasse 4b, CH-6341 Baar, Switzerland Contact Person: Bruno Gretler, Tel +41 (41) 769 51 51 ext. 247; Fax +41 (41) 769 51 00 bruno.gretler@medela.ch Traditional 510(k) Submission for Medela® Dominant 35 c/i Suction Pump
K043544 1/2
JAN - 7 2005
## Section E - 510(k) Summary
Medela Powered Suction Pumps
Dominant 35 c/i
#### Sponsor's Name, Address and Contact Person 1
Sponsor: Medela AG Medical Equipment Laettichstrasse 4b 6341 Baar Switzerland +41 41 769 5151 ext. 228 Ph: Fax: +41 41 769 5100
Contact Person Wemer Frei Manager Regulatory Affairs
Date Summary Prepared: October 10, 2004
#### 2 Name of Device
| Trade Name: | Medela® Dominant 35 c/i<br>Secretion & Surgical Aspirator |
|----------------------|---------------------------------------------------------------------------------------------------------|
| Common Name: | Powered Suction Pump |
| Classification Name: | PUMP, PORTABLE, ASPIRATION (MANUAL OR<br>POWERED)<br>(Classified Class II, per 21 CFR Section 878.4780) |
#### Name of the predicate Device(s) 3
- Medela® Basic 30 & Dominant 50 Suction Pumps, by Medela Inc. . K021368
- Aeros MobIvac III Aspirator, by Aeros Instruments, Inc. . K933902
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Medela AG, Laettichstrasse 4b, CH-6341 Baar, Switzerland Applicant: Contact Person: Bruno Gretler, Tel +41 (41) 769 51 51 ext. 247; Fax +41 (41) 769 51 00 bruno.gretler@medela.ch Traditional 510(k) Submission for Medela® Dominant 35 c/i Suction Pump
# K643544 2/2
#### 4 Description of Device
The Dominant 35 c/i Powered Suction Pump is an advancement of the approved Medela® Basic 30 and Dominant 50 Series of Secretion and Surgical Aspirators, which are all based on the well-proven Medela pistoncylinder system.
The Dominant 35 c/i Powered Suction Pump provides the choice of two suction modes:
- -Constant Suction (c) with a flow rate of 35 liters/min (high flow)
- Intermittent Suction (i) with a flow rate of 8 liters/min (low flow) and default settings of 16 seconds ONTime / 8 seconds OFFTime.
The new Dominant 35 c/i is based on the Dominant 50 and has additionally fixed to it's housing a jar holder which quarantees that the iar is approximately 20 cm above patient level.
The Dominant 35 c/i is an AC-powered aspirator and incorporates an ACmotor with gearbox, pistons and cylinders, an operation panel, a vacuum gauge in kPa and mmHG, a self-bleeding membrane vacuum regulator, a safety device of polysulfone with overflow protection device and connection tubing, an electric cord and an instruction manual.
The standard version includes a mobile stand with fitting rails 10 x 25 mm and four antistatic castors, two with locking device. The internal and external foot "ON/OFF"-switches have been retained unchanged, but please note, that these switches are only active while working in the constant mode!
#### 5 Intended Use of the Device
The Dominant 35 c/i is intended to be used for a variety of suctioning procedures including nasopharyngeal, tracheal, surgical, wound and thoracic drainage (must be used only in combination with a chest drainage unit with a built in flow adjustment valve). The intermittent suction mode is intended to be used for gastrointestinal suction procedures.
The pump is highly suitable for gastrointestinal suction procedures and for all routine suctioning procedures involving surgical and bodily fluids, gases, blood, secretions, tissue (including bone) and infectious materials in operating theatres, emergency rooms, physicians offices, at the patients bedside and is also to perform wound and thoracic drainage. A comprehensive range of accessories makes the Dominant 35 c/i ideally suited to a wide range of medical applications.
The intended uses and the indications of the Medela Dominant 35 c/i powered suction pump, are the same as the intended uses and indications for the predicate devices Medela Basic 30 and Dominant 50 suction pumps (K021368) and/or to the AEROS Moblvac III (K933902).
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Medela AG, Laettichstrasse 4b, CH-6341 Baar, Switzerland Applicant: Contact Person: Bruno Gretler, Tel +41 (41) 769 51 51 ext. 247; Fax +41 (41) 769 51 00 bruno.gretler@medela.ch Traditional 510(k) Submission for Medela® Dominant 35 c/i Suction Pump
K043544 3/2
#### Summary of Technological Characteristics 6
The Dominant 35 c/i is based on the Dominant 50, with an additional operation panel to choose either constant or intermittent mode and -- if desired - to change the time settings in the intermittent mode.
The technology of the Dominant 35 c/i powered suction pump is identical to the legally marketed (unmodified) devices and there are no technical differences which would raise new aspects regarding safety and effectiveness.
#### Conclusion 7
Based upon the information presented above, it is concluded that the proposed Medela® Dominant 35 c/i powered suction pump is safe and effective for the intended use.
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Image /page/3/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 a stylized symbol of three abstract human figures, represented by flowing lines, suggesting unity and collaboration. The symbol is a common representation of the department's mission to protect the health of all Americans and provide essential human services.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
JAN - 7 2005
Medela AG c/o Mr. Stefan Preiss TÜV Product Service, Inc. 1775 Old Highway 8 New Brighton, Minnesota 55412
Re: K043544
Trade/Device Name: Dominant 35 c/i Regulation Number: 21 CFR 878.4780 Regulation Name: Powered suction pump Regulatory Class: II Product Code: BTA Dated: December 21, 2004 Received: December 23, 2004
Dear Mr. Preiss:
We have reviewed your Section 510(k) premarket notification of intent to market the device we nave reviewed your becamed the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for associated in the May 28, 1976, the enactment date of the Medical Device Amendments, or to continer of the rights in accordance with the provisions of the Federal Food, Drug, de noos mat have been 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 r ou may ateresy interest 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 (PMA), 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.
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 that x Driveral statutes and regulations administered by other Federal agencies. You must or any I 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 Of It Furt 607); adoling (21 (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.
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Page 2 - Mr. Stefan Preiss
This letter 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 premaince 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 If you attire of Compliance at (240) 276-0115. 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 (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely yours,
Muriam C. Provost
Celia M. Witten, Ph.D., M.D. Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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### Indications for Use
#### 510(k) Number (if known):
Dominant 35 c/i Device Name:
Indications For Use:
The Dominant 35 cfi Suction Pump is indicated for aspiration and removal of surgical fluids, tissue (including bone), gases, bodily fluids (including vomit) or infectious materials from wounds or from a patient's airway or respiratory support system, either during surgery or at the patients bedside. Generally the Dominant 35 c/i is intended to be used for a variety of suctioning procedures including nasopharyngeal, tracheal, surgical, gastrointestinal, wound and thoracic drainage (must be used only in combination with a chest drainage unit with a built in flow adjustment valve) in either "constant" or "intermittent" mode.
X 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)
Muriam C. Provost
(Division Sign-Off)
Division of General, Restorative, and Neurological Devices
Page 1 of __
**510(k) Number** K043544
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.