K982255 · Ivy Biomedical Systems, Inc. · DQA · Oct 22, 1998 · Cardiovascular
Device Facts
Record ID
K982255
Device Name
MODEL 2000 PULSE OXIMETER
Applicant
Ivy Biomedical Systems, Inc.
Product Code
DQA · Cardiovascular
Decision Date
Oct 22, 1998
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.2700
Device Class
Class 2
Attributes
Pediatric
Indications for Use
Model 2000 Pulse Oximeter is indicated for the continuous nonitoring of arterial oxygen saturation (SpO2) and pulse rates for adult, pediatric and neonatal patients in a hospital and mobile environment (within the hospital). In addition the Model 2000 is indicated for the continuous non-invasive monitoring of arterial oxygen saturation (SpO2) and pulse rates for adults during patient motion conditions.
Device Story
Device: Model 2000 Pulse Oximeter; utilizes Masimo SET technology. Inputs: red/infrared light absorption signals from Masimo LNOP sensors attached to patient finger. Operation: spectrophotometry/plethysmography; module decomposes pulsatile absorbance into arterial signal and noise component; calculates SpO2 via look-up table. Output: SpO2 value, pulse rate, plethysmographic waveform on LCD display. Usage: hospital/mobile clinical environments; operated by healthcare practitioners. Clinical utility: continuous monitoring to assess patient condition and determine intervention needs; audible/visual alarms for user-defined limits. Benefits: noninvasive monitoring; motion-tolerant SpO2 calculation.
Clinical Evidence
Bench testing only. Performance validated via human blood studies on healthy adult volunteers in induced hypoxia (70-100% SpO2) against laboratory CO-oximeter and ECG. Motion accuracy validated during rubbing/tapping (2-4 Hz) and non-repetitive motion (1-5 Hz). Results demonstrate accuracy within ±1 standard deviation.
Technological Characteristics
Standalone pulse oximeter; utilizes Masimo SET module. Materials: thermoplastic sensors/cables, standard electronic components. Energy: 85-265 VAC or battery. Connectivity: sensor-to-monitor cable. Biocompatibility: ISO-10993-1 compliant for prolonged skin contact. Software: look-up table based algorithm.
Indications for Use
Indicated for continuous noninvasive monitoring of arterial oxygen saturation (SpO2) and pulse rates in adult, pediatric, and neonatal patients in hospital/mobile hospital environments; includes monitoring for adults during motion. Contraindicated for use as an apnea monitor.
Regulatory Classification
Identification
An oximeter is a device used to transmit radiation at a known wavelength(s) through blood and to measure the blood oxygen saturation based on the amount of reflected or scattered radiation. It may be used alone or in conjunction with a fiberoptic oximeter catheter.
Predicate Devices
Masimo SET® MS-1P Pulse Oximeter and accessories (K973887)
Submission Summary (Full Text)
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K982255
# OCT 22 1998
#### 510(K) SUMMARY
| Submitted by: | Ivy Biomedical Systems, Inc.<br>11 Business Park Drive<br>Branford, CT 06405<br>(203) 481-4183<br>FAX (203) 481-8734 |
|--------------------------------------|----------------------------------------------------------------------------------------------------------------------|
| Company Contact: | Dick Listro, Regulatory Affairs/Quality Assurance |
| Date Summary Prepared: | September 22, 1998 |
| Trade Name: | Model 2000 Pulse Oximeter |
| Common Name: | Pulse Oximeter |
| Classification Name: | Oximeter (74DQA) |
| Substantially Equivalent<br>Devices: | Masimo SET® MS-1P Pulse Oximeter and accessories 510K# K973887 |
#### Description of Model 2000 Pulse Oximeter
The Model 2000 pulse oximeter is a device consisting of the Masimo SET® technology (license to Ivy Biomedical), Masimo connecting cable, and Masimo oximetry sensors to nonivasively calculate the functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate. It features an easy-to-read LCD display that presents patient data and status information.
#### Features
- Several types of Masimo LNOP® sensors for flexibility. .
- Automatic alarm messages. .
- Backlit and adjustable contrast display for excellent visibility in subdued lighting conditions. .
- Direct access to user-selectable high and low alarm limits for SpO, and pulse rate. .
- . An audible pulse indicator with an adjustable volume; the automatic pitch modulation reflects changing SpO2 level.
- . Visual and audible (adjustable volume) alarms.
- . An alarm-silence feature; silences audible alarms continuously until deactivated.
- Status and alarm informational messages appear on the LCD.
- . Short, medium, or long SpO2 response averaging modes (4 to 16 seconds).
- Automatic storage of up to 8 hours of SpO2 in trend memory. .
- . Larger SpO2 digital display for clear differentiation from the pulse rate value.
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The Masimo PC series connecting cables connects the monitor to the oximetry sensors and transfers LED drive power and the calibration drive to the oximetry sensors from the monitor and the monitor receives the detector signal from the oximetry sensor.
The Masimo LNOP® series of oximetry sensors measure the light absorption of blood from two light emitting diodes (LED's). Oxygen saturated blood absorbs light differently as compared to unsaturated blood. The amount of light absorbed by the blood is used to calculate the ratio of oxygenated hemoglobin to total hemoglobin in arterial blood.
#### Intended use
The intended use of the Model 2000 pulse oximeter is the continuous noninvasive monitoring of functional saturation of arterial hemoglobin (SpO2) and pulse rate (measured by a SpO2, sensor) for adult, pediatric and neonatal patients in a hospital and mobile environment (within the hospital).
#### Indication for use
Model 2000 pulse oximeter and the Masimo LNOP® Series of Sensors and Masimo PC Series of Patient Cable are indicated for the continuous noninvasive monitoring of arterial oxygen saturation (SpO), and pulse rates for adult, pediatric and neonatal patients in a hospital and mobile environment (within the hospital).
In addition the Model 2000 is indicated for the continuous non-invasive monitoring of arterial oxygen saturation (SpO2) and pulse rates for adults during patient motion conditions.
#### Principles of operation
The principles of operation of the Model 2000 pulse oximeter is that oxyhemoglobin and deoxyhemoglobin differ in their absorption of red and infrared light (spectrophotometry), the volume of arterial blood in tissue (and hence, light absorption by that blood) changes during the pulse (plethysmography), and that arterio-venous shunting is highly variable and that fluctuating absorbance by venous blood is a major component of noise during the pulse. Because oxyhemoglobin and deoxyhemoglobin differ in light absorption the amount of red and infrared light absorbed by the blood is related to hemoglobin oxygen saturation. The Masimo SET® module in the Model 2000 pulse oximeter decomposes the red and infrared pulsatile absorbance signal into an arterial signal plus a noise component and calculates the ratio of the arterial signals without noise. The ratio of the two arterial pulse-added absorbance signals and its value is used to find the SpO2 saturation in a look-up table built into the Masimo SET® software. The values in the look-up table are based upon human blood studies against a laboratory CO-oximeter on healthy adult volunteer in induced hypoxia states.
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#### Method of operation
The method of operation of the Model 2000 pulse oximeter is to turn on the monitor. An oximetery sensor is attached to a patient's finger and one end of a patient cable is connected to the sensor and the other end connected to the front panel connector of the Model 2000.
The monitor will begin continuously displaying the patient's pulse plethysmographic waveform, bulse rate and SpO, value. The practitioner can adjust the high and limits to their value, if required. The practitioner can then use the information that is continuously displayed on the monitor, and heard if an alarm limit is reached, to help assess the condition of the patient and as an aide in determining if any intervention is required by the practitioner.
Once the practitioner determines the patient no longer requires monitoring, the cable is disconnected from the sensor, the oximetry sensor is removed (and disposed of if it is a single use device), and the power to the monitor is turned off.
The Masimo SET® module with LNOP-Adt sensors has been validated for motion accuracy in human blood studies on healthy adult volunteers in induced hypoxia studies in the range of 70-100% SpO, against a laboratory co-oximeter and ECG monitor. This variation equals plus or minus one standard deviation. Plus or minus one standard deviation encompasses 68% of the population.
The Masimo SET® module with LNOP-Adt sensors has been validated for motion accuracy in human blood studies on healthy adult volunteers in induced hypoxia studies while performing rubbing and tapping motions at 2 to 4 Hz at an amplitude of 1 to 2 cm and non-repetitive motion between 1 to 5 Hz at an amplitude of 2 to 3 cm in induced hypoxia studies in the range of 70-100% SpO, against a laboratory co-oximeter and ECG monitor. The variation equals plus or minus one standard deviation. Plus or minus one standard deviation encompasses 68% of the population.
#### Technological characteristics of the Model 2000 pulse oximeter compared to the Masimo SET® MS-1P pulse oximeter
The technological characteristics of the Model 2000 pulse oximeter and accessories and the Masimo SET® MS-1P pulse oximeter are the same or have similar technological characteristics in design, materials, and energy source.
The design of both devices is the same in that both devices are stand alone devices that monitor the oxygen saturation of arterial hemoglobin (SpO2) and pulse rate (measured by a SpO2 sensor) for adult, pediatric and neonatal patients. The principles of operation and methods of operation for both devices is the same.
The materials used in both devices are similar. The electronics within the instruments are standard electronics parts (resistors, capacitors, integrated circuits, wiring, connectors, etc). The sensors and
Section 2
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cables for both devices are formed of thermoplastic materials, adhesives, wires, electrical contacts, light emitting diodes, and photodetectors.
The Model 2000 pulse oximeter and the Masimo SET® MS-1P pulse oximeter both operates from 85 -265 VAC 47-63 Hz. Both can also operate under battery power.
## Environmental testing
Applicable environmental testing i.e. electrical, mechanical and environmental were performed and all test passed.
#### Biocompatibility testing
All patient contact materials were tested as Surface Devices with skin contact for prolonged contact duration (>24 hr to 30 days) as defined ISO-10993-1: 1992 Biological Evaluation of Medical Devices -Part 1: Guidance on Selection of Test. All patient contacting material passed.
## Nonclinical test performed that support a determination of substantial equivalence
The Model 2000 pulse oximeter was subjected to bench testing using a simulator that determines the performance accuracy of the instruments against the simulator under the range of saturation and pulse rates that both devices specify.
#### Conclusions
The results of the environmental testing demonstrates that the Model 2000 pulse oximeter met the requirements of Reviewers Guidance for Premarket Submission - November 1993.
The results of the biocompatibility testing demonstrates the patient contacting material met the requirements of ISO-10993-1: 1992 Biological Evaluation of Medical Devices Part 1: Guidance on Selection of Test Surface Devices with skin contact for prolonged contact duration (>24 hr to 30 days).
The results of the bench testing demonstrates that the Model 2000 pulse oximeter meets its performance requirements.
The testing performed demonstrates that the Model 2000 pulse oximeter is safe, effective, and performs as well as the predicate device, the Masimo SET® MS-1P pulse oximeter, and therefore, it is substantially equivalent to the Masimo SET® pulse oximeter.
Dick Vitito
Signature
September 23, 1998
Date
Date
Section 2
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Image /page/4/Picture/1 description: The image shows the logo for the Department of Health & Human Services USA. The logo features a stylized image of an eagle with its wings spread, and the words "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" are arranged in a circular pattern around the eagle.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
OCT 22 1998
Mr. Dick Listro Ivy Biomedical Systems, Inc. 11 Business Park Drive Branford, CT 06405
- Re: K982255 Model 2000 Pulse Oximeter Regulatory Class: II (two) Product Code: 74 DQA September 23, 1998 Dated: Received: September 25, 1998
Dear Mr. Listro:
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 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). 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.
If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), 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 895. A substantially equivalent determination assumes compliance with the Current Good Manufacturing Practice requirements, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic QS inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.
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Page 2 - Mr. Dick Listro
This letter will allow you to begin marketing your device as described in your 510(k) 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 the 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) 594-4648. 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 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,
Thomas J. Callahon
Thomas J.VCallahan, Ph.D. Director Division of Cardiovascular, Respiratory, 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):
K982255
Device Name:
Model 2000 Pulse Oximeter
Indications For Use:
Model 2000 Pulse Oximeter is indicated for the continuous nonitoring of arterial oxygen saturation (SpO2) and pulse rates for adult, pediatric and neonatal patients in a hospital and mobile environment (within the hospital).
In addition the Model 2000 is indicated for the continuous non-invasive monitoring of arterial oxygen saturation (SpO2) and pulse rates for adults during patient motion conditions.
#### Contraindication For Use:
The Model 2000 Pulse Oximeter is contraindicated for use as a apnea monitor.
#### (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
| | <img alt="Signature" src="signature.png"/> |
|--|-------------------------------------------------------------------|
| | (Division Sign-Off) |
| | Division of Cardiovascular, Respiratory, and Neurological Devices |
| Prescription Use (Per 21 CFR 801.109) | <div> <img alt="Check Mark" src="check_mark.png"/> </div> |
|---------------------------------------|-----------------------------------------------------------|
| 510(k) Number | |
| | or |
| Over-The-Counter Use | |
| | (Optional Format 1-2-96) |
IVY BIOMEDICAL SYSTEMS INC. 11 Business Park Drive, Branford Connecticut 06405 (203) 481-4183 (800) 247-4614 FAX: (203) 481-8734
Section 1
l of 1 Page
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.