WELCH ALLYN SPOT VITAL SIGNS LXI MODEL 45000 SERIES
Applicant
Welch Allyn, Inc.
Product Code
DXN · Cardiovascular
Decision Date
Jul 9, 2010
Decision
SESE
Submission Type
Special
Regulation
21 CFR 870.1130
Device Class
Class 2
Attributes
Pediatric
Indications for Use
The Spot Vital Signs Ultra automatically measures systolic and diastolic pressure, Mean Arterial Pressure (MAP), pulse rate, temperature (oral, adult axillary, pediatric axillary, rectal, and ear), and pulse oximetry (SpO2) of adult and pediatric patients. Furthermore, Spot Vital Signs Ultra allows the manual entry of height, weight, respiration, and pain level. Spot Ultra also calculates Body Mass Index (BMI) following height and weight entry. The device is intended to be used by clinicians and medically qualified personnel. It is available for sale only upon the order of a physician or licensed health care provider.
Device Story
Non-invasive vital signs measurement device for clinical settings; operated by clinicians/medically qualified personnel. Inputs: blood pressure (oscillometric), temperature (oral/axillary/rectal/ear), SpO2 (pulse oximetry), and manual entry of height, weight, respiration, and pain. Device processes inputs via SURE BP algorithm to determine blood pressure and MAP; calculates BMI from height/weight. Outputs: vital sign values displayed on LCD; optional printing via external thermal printer. Device supports accessories including mobile stand, wall mount, barcode reader, weight scales, and 802.11 a/b/g wireless communication. Facilitates efficient patient assessment in healthcare facilities; aids clinical decision-making through accurate, rapid vital sign acquisition.
Clinical Evidence
Bench testing only. Compliance with AAMI SP10 (Non-invasive blood pressure validation) demonstrated functional equivalence of the STEP Blood Pressure mode to the predicate device. No clinical trials were required or performed.
Technological Characteristics
Oscillometric blood pressure measurement; SpO2 and temperature modules. Connectivity: 802.11 a/b/g wireless. Form factor: portable with mobile stand or wall mount options. Software: SURE BP algorithm. Standards compliance: AAMI/ANSI SP10, UL 60601-1, IEC 60601-1, IEC 60601-1-2, IEC 60601-1-4.
Indications for Use
Indicated for adult and pediatric patients to measure systolic/diastolic blood pressure, MAP, pulse rate, temperature, and SpO2. Allows manual entry of height, weight, respiration, and pain level; calculates BMI.
Regulatory Classification
Identification
A noninvasive blood pressure measurement system is a device that provides a signal from which systolic, diastolic, mean, or any combination of the three pressures can be derived through the use of tranducers placed on the surface of the body.
{0}------------------------------------------------
## Welch Allyn
K101680
p1/5
510(k) Summary [As described in 21 CFR 807.92] JUL - 9 2010
Submitted by:
Welch Allyn Inc. 4341 State Street Road Skaneateles Falls, NY 13153-0220
Contact Person:
Fred Schweitzer Vice President, QA/RA Phone: (315) 554-4001 Fax: (315) 685-2532 E-mail: schweitzerf(@welchallyn.com
June 02, 2010 Date Prepared:
Trade Name:
Welch Allyn Spot Ultra Vital Signs and Welch Allyn Spot Vial Signs LXi
Spot Vital Signs Measurement Device Common Name:
Classification Reference:
Class II, 870.1130 Noninvasive Blood Pressure System Product Code - DXN
Predicate Device:
Welch Allyn, Inc. 510(k) Document Control Number K040490
Welch Allyn Spot Ultra Vital Signs
{1}------------------------------------------------
# Welch Allyn
#### Description of the Device:
The Welch Allyn Spot Ultra Vital Signs (Spot Vital Signs LXi) is not a monitor, but a one-time vital signs measurement device. This product will not have continuous monitoring capability with timed cycle intervals or any various programmable alarm features. Welch Allyn Spot Vital Signs LXi will include Blood Pressure with Temp, as the base feature, SpO2 is an option. A mobile stand, custom wall mount, an external printer, a barcode reader, weight scales and 802.11 a,b,g wireless communications are accessories that Welch Allyn Spot Ultra Vital Signs Device can be configured.
The Welch Allyn Spot Vital Signs LXi is designed to non-invasively measure systolic and diastolic blood pressure, pulse rate, temperature, and oxygen saturation (spO2) for adult and pediatric patients. The Welch Allyn Spot Vital Signs LXi will also calculate Mean Arterial Pressure (MAP). All blood pressure, pulse, temperature, and SpO2 values are displayed on a large, easy-to-read LCD display, and may be printed via an external thermal printer, as desired. The rechargeable battery and wide variety of mounting accessories make the Welch Allyn Spot Ultra Vital Signs Device convenient for many locations. The Spot Vital Sign LXi will also allow for data entry for weight, height, pain and will calculate Body Mass Index (BMI).
#### Indications for Use:
The Spot Vital Signs Ultra automatically measures systolic and diastolic pressure, Mean Arterial Pressure (MAP), pulse rate, temperature (oral, adult axillary, pediatric axillary, rectal, and ear), and pulse oximetry (SpO2) of adult and pediatric patients. Furthermore, Spot Vital Signs Ultra allows the manual entry of height, weight, respiration, and pain level. Spot Ultra also calculates Body Mass Index (BMI) following height and weight entry.
The device is intended to be used by clinicians and medically qualified personnel. It is available for sale only upon the order of a physician or licensed health care provider.
#### Technological Characteristics:
The Welch Allyn Spot Vital Signs LXi is intended for use by trained operators in healthcare facilities.
The Welch Ally Spot Ultra Vital Signs Device utilizes an Oscillometric Blood Pressure Algorithm, SpO2 OEM and temperature module technology. The original (predicate) device was cleared under FDA 510(k) number K040490. The dame fundamental scientific technology and intended use are the same for the modified device as the predicate device ..
{2}------------------------------------------------
# WelchAllyn
The following table summarizes the similarities between the subject Welch Allyn Spot Vital Signs LXi and the predicate Welch Allyn Spot Ultra Vital Signs Device (K040490).
*There are no hardware or software modifications to the Spot Ultra Vital Signs Device.
| *Welch Allyn Spot Ultra Vital Signs Device (K040490) | | |
|------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Substantial Equivalence Comparison | | |
| Subject Area | Similarities | Differences |
| Indications for Use | Same for Spot Vital Signs Blood Pressure measurement –<br>automatically measures systolic and diastolic pressure and<br>calculated Mean Arterial<br>Pressure (MAP) | There are no differences in indications for use from what has<br>been previously cleared by the<br>FDA. |
| Target Population | Remains the same for Spot Vital functions | There are no changes from what has been previously cleared by the FDA. |
| Where Used | Spot Vital Signs functions remain the same. Where used for the Vital Signs has not changed. | No differences |
| Design | Welch Allyn Spot Vital Signs functions continue to use the same design. Blood Pressure interface functionality also remains the same. | No differences<br>Document objective evidence that the STEP Blood Pressure<br>(BP) mode of the SURE BP algorithm is functionally<br>equivalent to the SURE BP<br>Mode (AAMI SP10 – Validation Report) |
| Human Factors | All hardware and software functionality are identical | There are no changes from what has been previously cleared by the FDA. |
| Performance | The Blood Pressure interface performances have not changed. | There are no changes from what has been previously cleared by the FDA.<br>Document objective evidence that the STEP Blood Pressure<br>(BP) mode of the SURE BP algorithm is functionally<br>equivalent to the SURE BP<br>Mode (AAMI SP10 – Validation |
| *Welch Allyn Spot Ultra Vital Signs Device (K040490) | | |
| Substantial Equivalence Comparison | | |
| Subject Area | Similarities | Differences |
| | | Report) |
| Materials | All materials are the same as<br>referenced to the original FDA | None |
| Efficacy | Efficacy of existing Spot Vital<br>Signs products and Blood<br>Pressure interface has not<br>changed. | None |
| Sterility | Not Applicable | Not Applicable |
| Biocompatibility | All materials are the same as<br>referenced to the original FDA | None |
| Safety | There are no changes from what<br>has been previously cleared by<br>the FDA. | None |
| Compatibility | Hardware & Software<br>compatibility has not changed. | There are no changes from what<br>has been previously cleared by<br>the FDA. |
| Packaging | Packaging for existing Spot<br>Vital Signs hardware products<br>have not changed. | None |
{3}------------------------------------------------
# Welch Allyn
The Welch Allyn Spot Vital Signs LXi has equivalent vital signs measurement as the Welch Allyn Spot Ultra Vital Signs (K040490).
They are no technological differences between the two devices that affect the safety or effectiveness of the device.
### Summary of Effectiveness:
The Welch Allyn Spot Vital Signs team has determined that the software "Level of Concern" is Moderate.
The document objective evidence (AAMI SP10 - validation report) that the STEP Blood Pressure (BP) Mode of the SURE BP algorithm is functionally equivalent to the SURE BP Mode and cleared per K040490. A copy of the specification and validation from that study, as presented for the Welch Allyn Spot Ultra Vital Signs submission K040490.
All requirements of the recognized and applicable standards are in compliance: SP10 (AAMI/ANSI), UL 60601-1, IEC 60601-1, IEC 60601-1-2, IEC 60601-1-4.
Additionally, risk management (risk, SFMEA and safety analysis) activities have been conducted in accordance with ISO 14971 Medical Devices - Application of risk management to medical devices and comply with IEC 60601-1-4 Medical Electrical
{4}------------------------------------------------
# WelchAllyn
Equipment Part 1: General Requirements for Safety, Part 4: Programmable Electrical Medical Systems.
{5}------------------------------------------------
Image /page/5/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized depiction of an eagle or bird-like figure with three curved lines representing its wings or body. The bird is positioned to the right of a circular arrangement of text that reads "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA".
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
JUL - 9 2010
Welch Allyn, Inc. c/o Mr. Huy Doan Director, Corporate Regulatory Affairs 4341 State Street Road P.O. Box 220 Skaneateles Falls, NY 13153-0220
Re: K101680
> Trade/Device Name: Welch Allyn Spot Ultra Vital Signs/Spot Vital Signs LXi Regulatory Number: 21 CFR 870.1130 Regulation Name: Non-invasive Blood Pressure Measurement System Regulatory Class: II (two) Product Code: DXN, DQA, FLL Dated: June 2, 2010 Received: June 15, 2010
Dear Mr. Doan:
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, Dr to 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 1 1717). general controls provisions of the Act include requirements for annual registration, l'isting of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to 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 max publish further announcements concerning your device in the Federal Register.
{6}------------------------------------------------
Page 2 - Mr. Huy Doan
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 Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related 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 go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 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 Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{7}------------------------------------------------
KI0I680
## Welch Allym
### Indications for Use Statement
510(k) Number (if known):
Device Name: Welch Allyn Spot Ultra Vital Signs Device
#### Indications for Use:
The Spot Vital Signs Ultra automatically measures systolic and diastolic pressure, Mean Arterial Pressure (MAP), pulse rate, temperature (oral, adult axillary, pediatric axillary, rectal, and ear), and pulse oximetry (SpO2) of adult and pediatric patients. Furthermore, Spot Vital Signs Ultra allows the manual entry of height, weight, respiration, and pain level. Spot Ultra also calculates Body Mass Index (BMI) following height and weight entry.
The device is intended to be used by clinicians and medically qualified personnel. It is available for sale only upon the order of a physician or licensed health care provider.
Prescription Use × (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
W.M.
of Cardiovascular Devices
510(k) Number K101620
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.