The Tempus Pro is a portable vital signs monitor intended to be used by clinicians and medically qualified personnel for the attended or unattended monitoring of single or multiple vital signs in clinical and pre-hospital care applications. The device is indicated for: 3 & 5 Lead ECG monitoring; 12 Lead ECG recording with interpretation; real-time arrhythmia detection / alarming; OT measurements / alarming; impedance pneumog; impedance pneumography; noninvasive blood pressure (NIBP); end-tidal CO2 (ETCO2) and respiration rate; pulse oximetry (SpO2); contact temperature; and invasive pressure and extended pulse oximetry capability including; carboxy haemoglobin (SpCO), methaemoglobin (SpMet), total haemoglobin (SpHb) and total oxygen content (SpOC) measurements. The monitor is intended to be used as a stand-alone monitor or as a telemedicine system (transmitting patient data to other medical professionals located elsewhere). The device is indicated for adults, paediatrics and neonates. The monitor can be used to display images from Interson 3.5 MHz General Purpose (GP) and 7.5 MHz Small Parts / Vascular (SR) USB ultrasound probes or a Karl Storz C-MAC S USB video laryngoscope. These optional accessories are to be used in accordance with their Indications For Use.
Device Story
Portable multi-parameter vital signs monitor for clinical/pre-hospital use by trained professionals. Inputs: ECG leads, SpO2 sensors, NIBP cuffs, capnometry, temperature probes, invasive pressure transducers, USB ultrasound probes, and video laryngoscopes. Device processes physiological signals and images; provides real-time monitoring, arrhythmia detection, and 12-lead ECG interpretation. Outputs: local display of waveforms/vitals/images; data transmission via wired/wireless connections to remote i2i software system for telemedicine. Includes integrated camera, GPS, and voice communication. Clinicians use output for patient assessment and clinical decision-making. Benefits: enables remote monitoring and expert consultation in field environments.
Clinical Evidence
No clinical data was necessary to demonstrate substantial equivalence. Bench testing only.
Technological Characteristics
Portable vital signs monitor; multi-parameter sensing (ECG, SpO2, NIBP, ETCO2, temperature, invasive pressure). Connectivity: wired/wireless data transmission to remote i2i software, integrated GPS, camera, and voice headset. Supports USB ultrasound probes and video laryngoscopes. Software-based analysis for arrhythmia, ST-segment, QT interval, and 12-lead ECG interpretation.
Indications for Use
Indicated for adults, paediatrics, and neonates requiring monitoring of vital signs including ECG (3, 5, and 12-lead), arrhythmia, ST-segment, QT interval, impedance pneumography, NIBP, ETCO2, respiration rate, pulse oximetry (SpO2, SpCO, SpMet, SpHb, SpOC), contact temperature, and invasive pressure in clinical or pre-hospital settings.
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.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
July 6. 2017
Remote Diagnostic Technologies Ltd James Hamlyn Senior Regulatory Affairs Specialist Pavilion C2. Ashwood Park. Ashwood Wav Basingstoke, RG23 8BG GB
Re: K170567 Trade/Device Name: Tempus Pro Patient Monitor Regulation Number: 21 CFR 870.1025 Regulation Name: Arrhythmia Detector and Alarm (Including ST-Segment Measurement And Alarm)
Regulatory Class: Class II Product Code: MHX, MWI, CCK, DPS, DSB, DXN, DRT, IYO, ITX, MNR, DQA, FLL, DSK, DRG Dated: May 25, 2017 Received: June 1, 2017
Dear Chris Hannan:
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
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with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (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,
M.A. Hillebrand
for Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K170567
Device Name Tempus Pro Patient Monitor
The Tempus Pro is a portable vital signs monitor intended to be used by clinicians and medically qualified personnel for the attended or unattended monitoring of single or multiple vital signs in clinical and pre-hospital care applications. The device is indicated for: 3 & 5 Lead ECG monitoring; 12 Lead ECG recording with interpretation; real-time arrhythmia detection / alarming; OT measurements / alarming; impedance pneumog; impedance pneumography; noninvasive blood pressure (NIBP); end-tidal CO2 (ETCO2) and respiration rate; pulse oximetry (SpO2); contact temperature; and invasive pressure and extended pulse oximetry capability including; carboxy haemoglobin (SpCO), methaemoglobin (SpMet), total haemoglobin (SpHb) and total oxygen content (SpOC) measurements.
The monitor is intended to be used as a stand-alone monitor or as a telemedicine system (transmitting patient data to other medical professionals located elsewhere).
The device is indicated for adults, paediatrics and neonates.
The monitor can be used to display images from Interson 3.5 MHz General Purpose (GP) and 7.5 MHz Small Parts / Vascular (SR) USB ultrasound probes or a Karl Storz C-MAC S USB video laryngoscope. These optional accessories are to be used in accordance with their Indications For Use.
| Type of Use (Select one or both, as applicable) | <span> <input checked="true" type="checkbox"/> Prescription Use (Part 21 CFR 801 Subpart D) </span> <span> <input type="checkbox"/> Over-The-Counter Use (21 CFR 801 Subpart C) </span> |
|-------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|-------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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# 510(k)Summary
#### Submitter'sInformation
| Name: | Remote Diagnostic Technologies Limited |
|------------------------|----------------------------------------------------------------------------------|
| Address: | Pavilion C2, Ashwood Park, Ashwood Way, Basingstoke, RG23<br>8BG, United Kingdom |
| Phone No: | +44 (0) 1256 362 400 |
| Fax No: | +44 (0) 1256 362 415 |
| Contact Person: | James Hamlyn, Senior Regulatory Affairs Specialist |
| Date Summary Prepared: | May 25, 2017 |
## Device Identification
| Device Name: | Tempus Pro Patient Monitor |
|--------------------------|--------------------------------------------------------------------|
| Common Name: | Patient Monitor |
| Classification: | II |
| Product Code: | MHX |
| Secondary Product Codes: | MWI, CCK, DPS, DSB, DXN, DRT, IYO, ITX, MNR, DQA, FLL,<br>DSK, DRG |
| Regulation Number: | 21 CFR 870.1025 |
## Predicate Device(s)
Tempus Pro Patient Monitor - K133988 (including Tempus Pro approvals K130773, K134014 and K130773)
## Device Description
The Tempus Pro is a multi-parameter vital signs monitor designed for use in pre-hospital care and remote clinical locations by trained healthcare professionals. It provides 3 & 5 lead ECG monitoring, 12 lead ECG recording, real-time arrhythmia detection & alarming, QT interval measurement & alarming, ST segment measurement & alarming, impedance respiration, pulse oximetry (including Masimo Rainbow® co-oximetry measurements i.e. SpOC, SpHb, SpCO, PVI and PI), non-invasive blood pressure, sidestream capnometry, contact temperature, invasive pressure, and user configurable alarms. Third-party video laryngoscopes and ultrasound probes can be attached to the device.
In addition, it provides the ability to transmit all vital signs data via wired or wireless connections to a software system (called i2i) expected to be based in a facility far from the user e.g. a response centre facility. In addition to sending all vital signs, the system can also send pictures or video via an integrated camera, geographic position by an integrated GPS receiver, and voice via a wired or wireless headset.
The Tempus Pro was originally cleared under K130773 and was subsequently amended with new features under K133988 (extended SpO2, invasive pressure and 12 Lead ECG Interpretation), K134014 (ultrasound and laryngoscopy) and K133973 (ECG arrhythmia alarming). This 510(k) is to consolidate the Indications for Use statements that are different across the four 510(k)s.
#### Indications for Use
This submission proposes to consolidate the Indications for Use statements cleared under four separate 510k submissions to create a single statement that comprises all the elements from the four statements. The proposed Indications for Use are as follows:
The Tempus Pro is a portable vital signs monitor intended to be used by clinicians and medically qualified personnel for the attended or unattended monitoring of single vital signs in clinical and prehospital care applications. The device is indicated for: 3 & 5 Lead ECG monitoring; 12 Lead ECG recording
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with interpretation; real-time arrhythmia detection / alarming; QT measurement / alarming and ST measurements / alarming; impedance pneumography; non-invasive blood pressure (NIBP); end-tidal CO2 (ETCO2) and respiration rate; pulse oximetry (SpO2); contact temperature; and invasive pressure and extended pulse oximetry capability including; carboxy haemoglobin (SpCO), methaemoglobin (SpMet), total haemoglobin (SpHb) and total oxygen content (SpOC) measurements. The monitor is intended to be used as a stand-alone monitor or as a telemedicine system (transmitting patient data to other medical professionals located elsewhere). The device is indicated for adults, paediatrics and neonates. The monitor can be used to display images from Interson 3.5 MHz General Purpose (GP) and 7.5 MHz Small Parts / Vascular (SR) USB ultrasound probes or a Karl Storz C-MAC S USB video laryngoscope. These optional accessories are to be used in accordance with their Indications for Use.
## Comparison of Technological Characteristics
Tempus Pro. originally cleared under K130773. was amended by K133988 to include extended SpO2. invasive pressure and 12 Lead ECG Interpretation. Ultrasound and larynqoscopy and ECG arrhythmia alarming were cleared as additional feature sets to the Tempus Pro under K134014 and K133973 respectively. The sole purpose of this submission is to consolidate the Indications for Use statements that are different across the four 510(k)s for Tempus Pro. There is no technological difference between the predicate devices and subject device. The predicate device have the same intended use; the same finished device specification; the same mechanical, electrical and electronic components or assemblies; and the same accessories.
## Substantial Equivalence - Non-Clinical Evidence
Non-clinical evidence was not necessary to demonstrate substantial equivalence. Software verification and validation testing has been included in the submission pursuant with FDA quidance document 'Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices'.
## Substantial Equivalence - Clinical Evidence
Clinical evidence was not necessary to demonstrate substantial equivalence.
#### Conclusion
In accordance with the Federal Food, Drug and Cosmetic Act, 21 CFR Part 807 and based on the information provided in this premarket notification, Remote Diagnostic Technologies Limited conclude that the Tempus Pro Patient Monitor with the changes described in this pre-market notification is as safe, as effective, and substantially equivalent to the predicate devices.
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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.