K050175 · Spacelabs Medical, Inc. · DSI · Mar 4, 2005 · Cardiovascular
Device Facts
Record ID
K050175
Device Name
SPACELABS MEDICAL MULTIPARAMETER MODULE 91496
Applicant
Spacelabs Medical, Inc.
Product Code
DSI · Cardiovascular
Decision Date
Mar 4, 2005
Decision
SESE
Submission Type
Special
Regulation
21 CFR 870.1025
Device Class
Class 2
Attributes
Pediatric
Indications for Use
Conditions to be screened, monitored, treated or diagnosed. Patient conditions indicated by abnormalities in various physiologic parameters, including ECG waveform, respiratory effort, invasive and noninvasive blood pressure measurements, temperature, cardiac output, and pulse oximeter (SpO₂) readings. Prescription use only. Yes. Caution statement is provided in the introductory page of the Patient Care Management System which includes the operating instructions for this Module. Parts of body applied to. Specific to the physiologic parameter being monitored, accessories may be applied externally to the chest and limbs or invasively into the blood stream. Frequency of use. Frequency as directed by physician. Physiological purpose. In conjunction with clinical findings, a screening and diagnostic tool for use in: assessing electrical activity of the heart in order to detect abnormal cardiac rhythms, including life threatening events such as high and low heart rates, asystole and ventricular fibrillation as well as, in adults, the detection of rhythms such as ventricular runs, tachycardia, and ST segment deviations; monitoring respiratory effort to detect abnormal respiration events such as high and low respiration rates and episodes of apnea; continuous monitoring of invasive pressure signals to detect abnormal events such as high and low pressure; episodic monitoring of noninvasive pressure signals to detect abnormal events such as high and low pressure; continuous monitoring of temperature signals to detect abnormal events such as high and low body temperature; monitoring of the patient's pumping ability of the heart and various hemodynamic values to detect abnormal flow volumes; and noninvasive, continuous monitoring of pulse oxygen saturation signals in order to detect desaturation due to abnormal pulmonary/circulatory functions.
Device Story
Modular unit (91496) interfaces with Spacelabs Patient Care Management System (PCMS) to acquire/process physiologic data; inputs include ECG, respiration, invasive/noninvasive blood pressure, temperature, cardiac output, and SpO2 (via Nellcor OxiMax technology). Module transmits waveform/digital data to PCMS monitor via SDLC for display/analysis by clinicians. Used in clinical settings; provides real-time monitoring of cardiac rhythms, hemodynamic values, and oxygen saturation. Enables detection of abnormal events (e.g., arrhythmias, apnea, desaturation) to support clinical decision-making and patient management.
Clinical Evidence
Bench testing only. Device validated through rigorous testing for compliance with applicable standards. Software developed via robust process and fully validated. Safety testing performed by third-party agencies.
Technological Characteristics
Modular physiologic monitor; processes ECG, respiration, invasive/noninvasive BP, temperature, cardiac output, and SpO2. Connectivity via SDLC to PCMS. Integrates Nellcor OxiMax oximetry. Software-based processing.
Indications for Use
Indicated for adult or neonatal/infant patients requiring monitoring of ECG, respiration, invasive/noninvasive blood pressure, temperature, cardiac output, and SpO2 in clinical environments (excluding home use).
Regulatory Classification
Identification
The arrhythmia detector and alarm device monitors an electrocardiogram and is designed to produce a visible or audible signal or alarm when atrial or ventricular arrhythmia, such as premature contraction or ventricular fibrillation, occurs.
Special Controls
*Classification.* Class II (special controls). The guidance document entitled “Class II Special Controls Guidance Document: Arrhythmia Detector and Alarm” will serve as the special control. See § 870.1 for the availability of this guidance document.
Predicate Devices
Spacelabs Medical Integrated Multiparameter Module 90496 (K972502)
OxiMAX Pulse Oximetry System with N-595 Pulse Oximeter and OxiMAX Sensors and Cables (K012891)
Submission Summary (Full Text)
{0}------------------------------------------------
K 05/17)
## Spacelabs Medical, Inc. Special 510(k) Multiparameter Module 91496 with Option N 510(k) Summary
This 510(k) summary of safety and effectiveness information is submitted in accordance with the requirements of SMDA 1990 and 1992.
| Date: | January, 2005 |
|---------------------------------|--------------------------------------------------------------------------------------------------|
| Submitter: | Spacelabs Medical, Inc.<br>5150 220th Avenue SE<br>Issaquah, WA 98029 |
| | Mr. Al Van Houdt<br>1 425 657 7200, x5970<br>1 425 657 7210 (FAX)<br>Al.VanHoudt@slmd.com |
| Proprietary Name: | Spacelabs Medical Multiparameter Module 91496 (Option N) |
| Common Name and Classification: | Arrhythmia Detector and Alarm<br>74DSI, §870.1025, Class II |
| | Noninvasive Blood Pressure Measurement System<br>74DXN, §870.1130, Class II |
| | Oximeter<br>74DQA, §870.2700, Class II |
| | Blood Pressure Computer<br>74DSK, §870.1110, Class II |
| | Clinical Electronic Thermometer<br>80BWX, §880.2910, Class II |
| | Thermal Cardiac Output Monitor<br>74KFN, §870.1435, Class II |
| Predicate Devices: | K972502: Spacelabs Medical Integrated Multiparameter Module 90496 |
| | K012891: OxiMAX Pulse Oximetry System with N-595 Pulse Oximeter and<br>OxiMAX Sensors and Cables |
000021
{1}------------------------------------------------
## Spacelabs Medical, Inc. Special 510(k) Multiparameter Module 91496 with Option N 510(k) Summary
The Spacelabs Medical Multiparameter Module 91496 with Option N is a slim, Device lightweight singular modular unit that, when used in conjunction with a Description: ilght Care Medical Patient Care Management System (PCMS), provides the capability to acquire various common physiologic data in a clinical setting. The Module 91496 is the primary interface to the patient being monitored. The Module 91496 is capable of acquiring and processing ECG, respiration, invasive and noninvasive blood pressure, temperature, cardiac output and SpO2 parameters for a single patient. The Module 91496 accumulates the patient physiological data of interest and provides both waveform and digital data to a Spacelabs Medical PCMS monitor via SDLC communications. The PCMS monitor will provide the display capabilities for the care provider. Option N utilizes Nellcor Puritan Bennett OxiMax oximetry and sensors and OxiMax-compatible adapter cables. The Spacelabs Medical Multiparameter Module 91496 is intended for use with Intended Use: the PCMS to acquire, monitor and process various clinical parameters from adult or neonatal/infant populations in any type of clinical environment other than home use. Physiologic parameters that may be monitored include cardiac activity, respiration, invasive and noninvasive blood pressure, temperature, oxygen saturation (SpO2), and cardiac output. Acquired data may then be communicated to an information network for display, recording, editing and analysis. The Spacelabs Medical Multiparameter Module 91496 with Option N is Comparison of substantially equivalent to the Spacelabs Medical Multiparameter Module Technological Characteristics: 90496 in design concepts, technologies, materials and intended use, and to the Nellcor N-595 Pulse Oximeter with regard to SpO2 analysis. Test The Module 91496 was validated through rigorous testing that, in part, support the compliance of the Module 91496 to applicable standards. Additionally, the Discussion: software for the Module 91496 was developed following a robust software development process and was fully specified and validated. Safety testing has been performed by third party agencies to ensure the device complies with applicable industry and safety standards. The Module 91496 is substantially equivalent to its predicate devices in design Testing Conclusion: concepts, technologies, materials and intended use.
## 000022
{2}------------------------------------------------
Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo features a stylized depiction of an eagle or bird-like figure with three curved lines representing its body and wings. The words "DEPARTMENT OF HEALTH AND HUMAN SERVICES, U.S.A." are arranged in a circular pattern around the bird symbol.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
MAR 4 - 2005
Mr. Al Van Houdt Director, Regulatory Affairs and Quality Spacelabs Medical, Incorporated 51 50 220th Avenue SE Issaquah, Washington 98027
Re: K050175
KUSUI 75
Trade/Device Name: Spacelabs Medical Multiparameter Module 91496 with Option N Regulation Number: 870.2700 Regulation Name: Oximeter Regulatory Class: II Regulatery Class DQA, DSI, LOS, DXN, DSK, DXG, FLL Dated: February 24, 2005 Received: February 25, 2005
Dear Mr. Houdt:
We have reviewed your Section 510(k) premarket notification of intent to market the device we have reviewed your becater wined the device is substantially equivalent (for the relerenced above and nave decemblics re) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device mendments, or to devices that have been reclassified in accordance with the provisions of Annehuments, of to devroes that the tic Act (Act) that do not require approval of a premarket the I cuclar I vou, Drug, and Cooumay, therefore, market the device, subject to the general approval approvisions of the Act. The general controls provisions of the Act include controls provisions of the ristration, 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 II your device is chasified (ob acontrols. Existing major regulations affecting (FMA), it may be subject to sach adam form and Regulations, Title 21, Parts 800 to 898. In your device can be found in the announcements concerning your device in the Federal Register.
{3}------------------------------------------------
Page 2 - Mr. Houdt
Please be advised that FDA's issuance of a substantial equivalence determination does not Please be advised that FDA s Issualice of a substanterines with other requirements
mean that FDA has made a determination that your device the Federal accepted mean that FDA has made a decermination that your mistered by other Federal agencies.
of the Act or any Federal statutes and regulations administered by patistration of the Act of ally rederal statutes and regulations, but not limited to: registration You must comply with an the Fee S required (21 CFR Part 801); good manufacturing practice and listing (21 CFR Fall 807), labeling (21 CFR (21 (21 (21 Park 820); and if
requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if requirements as set form in the quality by sense (Sections 531-542 of the Act); 21 CFR 1000-1050.
This letter will allow you to begin marketing your device as described in your Section 510(k) ITIIs letter with anow yourse organ mailing of substantial equivalence of your device to a premiarket notification. The FDF initial a 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), II you desire specific ua noo fer your as at (240) 276-0120. 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 Inay obtain other general mireters, 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/industry/support/index.html.
Sincerely yours,
Sygitte Michaux Cnd.
Chiu Lin, Ph.D. Director Division of Anesthesiology, General Hospital, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{4}------------------------------------------------
## Indications for Use
,
:
| 510(k) Number (if<br>known): | K050175 |
|------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device Name: | Spacelabs Medical Multiparameter Module 91496 with Option N |
| Indications for<br>Use: | Conditions to be screened, monitored, treated or diagnosed.<br>Patient conditions indicated by abnormalities in various physiologic parameters,<br>including ECG waveform, respiratory effort, invasive and noninvasive blood<br>pressure measurements, temperature, cardiac output, and pulse oximeter (SpO₂)<br>readings.<br>Prescription use only.<br>Yes. Caution statement is provided in the introductory page of the Patient Care<br>Management System which includes the operating instructions for this Module.<br>Parts of body applied to.<br>Specific to the physiologic parameter being monitored, accessories may be applied<br>externally to the chest and limbs or invasively into the blood stream.<br>Frequency of use.<br>Frequency as directed by physician.<br>Physiological purpose.<br>In conjunction with clinical findings, a screening and diagnostic tool for use in:<br>assessing electrical activity of the heart in order to detect abnormal cardiac rhythms, including life threatening events such as high and low heart rates, asystole and ventricular fibrillation as well as, in adults, the detection of rhythms such as ventricular runs, tachycardia, and ST segment deviations; monitoring respiratory effort to detect abnormal respiration events such as high and low respiration rates and episodes of apnea; continuous monitoring of invasive pressure signals to detect abnormal events such as high and low pressure; episodic monitoring of noninvasive pressure signals to detect abnormal events such as high and low pressure; continuous monitoring of temperature signals to detect abnormal events such as high and low body temperature; monitoring of the patient's pumping ability of the heart and various hemodynamic values to detect abnormal flow volumes; and noninvasive, continuous monitoring of pulse oxygen saturation signals in order to detect desaturation due to abnormal pulmonary/circulatory functions. |
| Prescription Use<br>X<br>(Part 21 CFR 801 Subpart D) | AND/OR<br>Over-The-Counter Use<br>(21 CFR 807 Subpart C) |
| | (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)<br>(Division Sign-Off)<br>(Division of Anesthesiology, General Hospital,)<br>Concurrence of CDRH, Office of Device Evaluation (ODE) |
(x) Number_K 050175
:
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
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.