The Spectra S1 Plus and Spectra S2 Plus are single-user, powered breast pumps intended to express and collect milk from the breasts of lactating women.
Device Story
Powered diaphragm breast pump; single or double pumping. User interface includes buttons and LCD; allows selection of massage mode (5 suction levels, 1 cycle speed) or expression mode (12 suction levels, 5 cycle speeds). Vacuum range 50-280 mmHg; cycle rates up to 70 cycles/min. S1 Plus includes rechargeable lithium battery; S2 Plus uses 12V DC adapter. Used in home environment by lactating women. Provides vacuum-based milk expression; output collected in bottles. Helps facilitate breastfeeding by enabling milk collection.
Clinical Evidence
No clinical data. Substantial equivalence supported by bench testing, including vacuum level/cycle rate performance, backflow protection, battery operation, electrical safety (IEC 60601-1), EMC (IEC 60601-1-2), home use safety (IEC 60601-1-11), and biocompatibility (ISO 10993).
Technological Characteristics
Diaphragm-type powered breast pump. Materials biocompatibility per ISO 10993. Vacuum 50-280 mmHg; cycle 38-70 cycles/min. LCD interface. S1 Plus: AC/DC or rechargeable lithium battery; S2 Plus: AC/DC. Electrical safety per IEC 60601-1; EMC per IEC 60601-1-2; home use per IEC 60601-1-11. Software lifecycle per IEC 62304.
Indications for Use
Indicated for lactating women to express and collect breast milk. Single-user device.
Regulatory Classification
Identification
A powered breast pump in an electrically powered suction device used to express milk from the breast.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
April 15, 2016
Uzinmedicare Co. % Ho Dong Yang CEO Onbix Corporation #821 Samil Plaza, 837-26 Yeuksam-dong Gangnam-gu, Seoul 135-768 Republic of Korea
Re: K150476 Trade/Device Name: Spectra S1 Plus and Spectra S2 Plus Regulation Number: 21 CFR 884.5160 Regulation Name: Powered Breast Pump Regulatory Class: Class II Product Code: HGX Dated: March 9, 2016 Received: March 9, 2016
Dear Ho Dong Yang,
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
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Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical devicerelated 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 contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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 Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours.
# Herbert P. Lerner -S
for Benjamin R. Fisher, Ph.D. Director Division of Reproductive, Gastro-Renal, and Urological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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| DEPARTMENT OF HEALTH AND HUMAN SERVICES<br>Food and Drug Administration | |
|-------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indications for Use | Form Approved: OMB No. 0910-0120<br>Expiration Date: January 31, 2017<br>See PRA Statement below. |
| 510(k) Number (if known) | K150476 |
| Device Name | Spectra S1 Plus and Spectra S2 Plus |
| Indications for Use (Describe) | The Spectra S1 Plus and Spectra S2 Plus are single-user, powered breast pumps intended to express and collect milk from the breasts of lactating women. |
| Type of Use (Select one or both, as applicable) | |
| | <label><input type="checkbox"/>Prescription Use (Part 21 CFR 801 Subpart D)</label> <label><input checked="" type="checkbox"/>Over-The-Counter Use (21 CFR 801 Subpart C)</label> |
CONTINUE ON A SEPARATE PAGE IF NEEDED.
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| FORM FDA 3881 (8/14) | Page 1 of 1 |
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PSC Publishing Services (301) 443-6740 EF
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# 510(k) SUMMARY
# K150476
In accordance with the requirements of 21 CFR §807.92, the following summary is provided:
# SUBMITTER INFORMATION:
UZINMEDICARE CO Room 105, Joongang Induspia V, Sagimakgolo 137, Jungwon-gu, Seoungnam-Si, Gyeonggi-do, 13202, South Korea
## PRIMARY CONTACT PERSON:
Nathan Ahn, Manager Overseas Department c/o UZINMEDICARE CO Room 105, Joongang Induspia V, Sagimakgolo 137, Jungwon-gu, Seoungnam-Si, Gyeonggi-do, 13202, South Korea Telephone: 82-31-739-5271 Email: shahn@uzinmedical.co.kr
# SECONDARY CONTACT PERSON:
Heidi Humphries, RN, BSN, IBCLC Spectra Baby USA 6851 SW 2181 Court, Suite 1 Davie, FL 33317 Telephone: 954-471-4429 E-mail: hprn@aol.com
### DATE SUMMARY PREPARED:
March 21, 2016
#### DEVICE INFORMATION:
Trade Name(s): Classification Name: Powered breast pump Regulation: Product Code:
Spectra S1 Plus and Spectra S2 Plus 884.5160 HGX
#### PREDICATE DEVICE INFORMATION:
PJ's Comfort® Trade Name(s): Classification Name: Powered breast pump Regulation: 884.5160 Product Code: HGX
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# DEVICE DESCRIPTION:
The Spectra S1 Plus and Spectra S2 Plus are single-user, powered breast pumps intended to express and collect milk from the breasts of lactating women. Pumping can be performed on one breast (single pumping) or both breasts (double pumping) at the same time.
The user employs buttons to switch from massage mode to expression mode and to control the vacuum and cycle levels within those modes. Massage mode consists of 5 suction levels and 1 cycling speed option, while expression mode has 12 suction levels and 5 cycle speed levels. The Spectra S1 Plus and Spectra S2 Plus are capable of providing vacuum levels from 50-280 mmHg with cycling rates up to 70 cycles per minute. The Spectra S1 Plus is powered by a 12V DC adaptor or rechargeable lithium battery. The Spectra S2 Plus is powered only by a 12V DC adaptor.
## INDICATIONS FOR USE STATEMENT:
The Spectra S1 Plus and Spectra S2 Plus are single-user, powered breast pumps intended to express and collect milk from the breasts of lactating women.
## COMPARISON TO PREDICATE DEVICE:
The Spectra S1 Plus and Spectra S2 Plus breast pumps have intended use and the same technological characteristics as the Limerick PJ Comfort® (K051926).The general device characteristics and key specifications of the Spectra S2 Plus breast pumps and its predicate device are summarized in the following table:
| | Subject Device (K150476) | Predicate Device (K051926) |
|---------------------------------------|----------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------|
| | GENERAL DEVICE CHARACTERISTICS | |
| Product Name | Spectra S1 Plus and Spectra S2 Plus | PJ's Comfort |
| Manufacturer | Uzinmedicare Co. | Limerick, Inc. |
| Product Code | HGX | HGX |
| Regulation No. | 21 CFR 884.5160 | 21 CFR 884.5160 |
| Class | Class II | Class II |
| Patient Population | Breastfeeding women | Breastfeeding women |
| Indications for Use | The Spectra S1 Plus and Spectra S2 Plus are<br>single-user, powered breast pumps intended to | The PJ's Comfort breast pump is an electrically<br>powered (diaphragm type) suction device intended |
| | express and collect milk from the breasts of<br>lactating women. | to express and collect milk from the breasts of<br>lactating women. |
| | SPECIFICATIONS | |
| Pump Type | Diaphragm | Diaphragm |
| Pump Options | Single or Double | Single or Double |
| Suction Levels | Massage Mode: 5 levels<br>Expression Mode: 12 Levels | Unknown |
| Suction Strength | 50-280 mmHg | 40-270 mmHg |
| Cycle Speed | 38-70 cycles/min (adjustable) | 16-70 cycles/min (adjustable) |
| Visual Indicator | LCD | Markings and illuminated lights on panel |
| Power Supply<br>(Conventional Outlet) | AC/DC wall converter | AC/DC wall converter |
| Power Supply<br>(Battery) | Rechargeable Lithium Ion Battery<br>(only for Spectra S1 Plus) | Rechargeable NiMH Battery |
| Power Supply<br>(Car Adapter) | N/A | 12 V |
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| Back Flow Protection<br>1 UD<br>ﻟﻠﻘﺎﻧﻮﻥ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤﺪﺓ ﺍﻟﻤﺘﺤ |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
# SUMMARY OF NON-CLINICAL TESTS:
The Spectra S1 Plus and Spectra S2 Plus breast pumps comply with voluntary standards for electrical safety, electromagnetic compatibility, use in the home healthcare environment and powered suction pumps. The following data were provided to support the substantial equivalence determination:
- Risk Analysis developed in accordance with ISO 14971:2007.
- . Electrical Safety Testing in accordance with IEC 60601-1:2005 (3m Edition) with US deviations per AAMI/ANSI ES 60601-1:2005/(R)2012 and A1:2012.
- Electromagnetic Compatibility Testing in accordance with IEC 60601-1-2:2007.
- Safety Testing for use in the home in accordance with IEC 60601-1-11:2010.
- . Biocompatibility Tests in accordance with ISO-10993, including cytotoxicity (ISO 10993-5:2009), sensitization (ISO 10993-10:2010) and irritation (ISO 10993-10:2010).
- . Software verification and validation testing as recommended in FDA's Guidance Document "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices." (May 11, 2005).
- Medical Device Software - Software Life Cycle Processes in accordance with IEC 62304.
Performance testing was conducted at minimum and maximum vacuum settings to determine the minimum and maximum vacuum levels of the pump as compared to its specifications. Tests were conducted for 20 minutes to simulate a typical pumping session. The specifications were met for vacuum level, cycle rate, backflow protection and battery operation time. These results held under conditions of single and double pumping mode and for the Spectra S1 Plus model, of varying power sources (e.g., AC/DC power vs. battery power).
## SUMMARY OF CLINICAL TESTS:
Clinical testing was not required to demonstrate the substantial equivalence of the Spectra S1 Plus and Spectra S2 Plus breast pumps to its predicate device.
## CONCLUSION:
The differences between the Spectra S1 Plus and Spectra S2 Plus breast pumps and its predicate device do not introduce a new intended use and do not raise of safety and effectiveness. Based on non-clinical testing. Uzinmedicare Co. concludes that the Spectra S1 Plus and Spectra S2 Plus breast pumps perform as intended and are substantially equivalent to the legally marketed predicate device, Limerick's PJ Comfort.
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.