K024345 · Services Industriels Savaria, Inc. · ILK · Feb 26, 2003 · Physical Medicine
Device Facts
Record ID
K024345
Device Name
B.07 STAIRWAY CHAIRLIFT
Applicant
Services Industriels Savaria, Inc.
Product Code
ILK · Physical Medicine
Decision Date
Feb 26, 2003
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 890.5150
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The product will be used by the patient to assist in navigating a specific set of stairs. This is a self-contained product that is mounted to the tread of a staircase. A trained dealer will install the unit, test it and teach the end user how to operate it. The typical user is someone who has limited function of their knees, hips or ankles and/or has trouble bending these joints. Other users include rehabilitated stroke victims, those inflicted with MS, arthritis, heart disease, and those who cannot handle the exertion of walking up and down the stairs. The unit may be recommended by doctors or physical therapists, for those who are recuperating but a large number of users acquire a stairway elevator just because to eases the burden of climbing stairs, improving their quality of life. For those who are wheelchair bound, it requires that they be able to transfer and is usually an option only if the physical limitations of the residence prohibits a vertical elevator.
Device Story
Stairway chairlift for residential or public use; carries 300 lb load up to 32 feet at 18 feet/minute. Device consists of seat, footrest, and carriage mounted to extruded aluminum rail attached to stair treads. Operates via roller chain drive system. Safety features include obstruction sensors on footrest, safety brake, swiveled seat detector, and final limit switches at top/bottom. Operated by patient; installed by trained dealer. Chair swivels at landings for access; folds for storage. Benefits patients with mobility limitations by assisting in stair navigation, reducing physical exertion, and improving quality of life.
Clinical Evidence
No clinical data provided; bench testing only.
Technological Characteristics
Extruded aluminum rail; roller chain drive system; vertical mount to stair tread. Adjustable angle (25-45 degrees). Safety components: obstruction sensors, safety brake, swiveled seat detector, final limit switches. Mechanical operation.
Indications for Use
Indicated for patients with limited knee, hip, or ankle function, joint bending difficulties, stroke recovery, MS, arthritis, heart disease, or those unable to exert themselves walking up/down stairs. Wheelchair users must be able to transfer independently.
Regulatory Classification
Identification
Powered patient stairway chair lifts: A powered patient stairway chair lift is a motorized lift equipped with a seat and permanently mounted in one location that is intended for use in mitigating mobility impairment caused by injury or other disease by moving a person up and down a stairway. All other powered patient transport: A powered patient transport is a motorized device intended for use in mitigating mobility impairment caused by injury or other disease by moving a person from one location or level to another, such as up and down flights of stairs (e.g., attendant-operated portable stair-climbing chairs). This generic type of device does not include motorized three-wheeled vehicles or wheelchairs.
Special Controls
(i) Appropriate analysis and nonclinical testing (such as that outlined in the currently FDA-recognized edition of American Society of Mechanical Engineers (ASME) A18.1 “Safety Standard for Platform Lifts and Stairway Chair Lifts”) must demonstrate that the safety controls are adequate to prevent a free fall of the chair in the event of a device failure;
(ii) Appropriate analysis and nonclinical testing must demonstrate the ability of the device, including armrests, to withstand the rated load with an appropriate factor of safety;
(iii) Appropriate restraints must be provided to prevent the user from falling from the device (such as that outlined in the currently FDA-recognized edition of ASME A18.1 “Safety Standard for Platform Lifts and Stairway Chair Lifts”);
(iv) Appropriate analysis and nonclinical testing (such as that outlined in the currently FDA-recognized editions of AAMI/ANSI/IEC 60601-1-2, “Medical Electrical Equipment—Part 1-2: General Requirements for Safety—Collateral Standard: Electromagnetic Compatibility—Requirements and Tests,” and ASME A18.1 “Safety Standard for Platform Lifts and Stairway Chair Lifts”) must validate electromagnetic compatibility and electrical safety; and
(v) Appropriate analysis and nonclinical testing must demonstrate the resistance of the device upholstery to ignition.
{0}------------------------------------------------
K024345
FEB 2 6 2003
## 510(k) SUMMARY
| Submitted by: | Barnes, Richardson & Colburn<br>1225 Eye Street, N.W.<br>Washington, D.C. 20005 |
|---------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact: | Stephen Brophy<br>Tel: (202) 457-0300 |
| Date Prepared: | December 16, 2002 |
| Subject Device: | B-07 Stairway Chairlift |
| Predicate Device: | Bruno Electra-Ride (510(k) number K921648) |
| Subject Product<br>Description: | The B.07 is a stairway chairlift designed to carry a rated load of 300 lb.<br>directly up and down a set of stairs in a residence or public setting. The<br>B.07 is designed to travel a maximum 32 feet at a rated speed of 18 feet<br>per minute. Safety switches installed on the B.07 stop the carriage when it<br>reaches the top or bottom of the stairway. The footrest incorporates<br>obstruction sensors, which will stop the carriage if an obstacle is<br>encountered on the stairs.<br>The B.07's simple design allows for easy operation, quick installation and<br>reliability. Its rail is made of extruded aluminum and hides the drive<br>components and the traveling cable. It is a vertical mount rail that attaches<br>to the tread so wear marks cannot develop on its outer surface due to the<br>internal rolling system. The angle is fully adjustable for staircases of 25 to<br>45 degrees. The seat and footrest height are adjustable for both short and<br>tall people. The chair can be swiveled at the top and bottom landing for<br>easy and safe access to the seat. The stairlift can be transformed from a<br>left hand to a right hand side on the site of installation within minutes.<br>The device uses a roller chain drive system with an aluminum rail that<br>allows for modifying the length of travel without having a weld. For<br>safety, the B.07 is equipped with a safety brake, an obstruction sensor, a<br>swiveled seat detector and a final limit switch. The chair lift can also be<br>folded in the up position as to facilitate access to the staircase. |
| Intended Use: | The product will be used by the patient to assist in navigating a specific set<br>of stairs. This is a self-contained product that is mounted to the tread of a<br>staircase. A trained dealer will install the unit, test it and teach the end<br>user how to operate it. The typical user is someone who has limited<br>function of their knees, hips or ankles and/or has trouble bending these<br>joints. Other users include rehabilitated stroke victims, those inflicted with<br>MS, arthritis, heart disease, and those who cannot handle the exertion of |
{1}------------------------------------------------
walking up and down the stairs. The unit may be recommended by doctors or physical therapists, for those who are recuperating but a large number of users acquire a stairway elevator just because to eases the burden of climbing stairs, improving their quality of life. For those who are wheelchair bound, it requires that they be able to transfer and is usually an option only if the physical limitations of the residence prohibits a vertical elevator.
## Product Comparison:
The B.07 is substantially equivalent to the Bruno Electra-Ride (K9721648). Both products are used by the patient to assist in navigating a specific set of stairs.
{2}------------------------------------------------
Image /page/2/Picture/1 description: The image is a black and white logo for the U.S. Department of Health & Human Services. The logo features the department's emblem, which consists of a stylized caduceus-like symbol with three human profiles facing right. The emblem is encircled by the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" in a circular arrangement.
Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
FEB 2 6 2003
Services Industriels Savaria, Inc. c/o Mr. Stephen W. Brophy Barnes, Richardson & Colburn 1225 Eye Street, N.W., Suite 1150 Washington, DC 20005
Re: K024345
Trade/Device Name: B.07 Stairway Chairlift Regulation Number: 21 CFR 890.5150 Regulation Name: Powered patient transport Regulatory Class: II Product Code: ILK Dated: February 5, 2003 Received: February 5, 2003
Dear Mr. Brophy:
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 f 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 (PMA), 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 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); 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.
{3}------------------------------------------------
Page 2 - Mr. Stephen W. Brophy
This letter will allow you to begin marketing your device as described in your Section 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), please contact the Office of Compliance at (301) 594-4659. 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 Division of Small Manufacturers, 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/dsma/dsmamain.html
Sincerely yours,
Sincerely, yours,
O Mark N Milliman
Celia M. Witten, Ph.D., M.D. Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{4}------------------------------------------------
## 510(k) NUMBER (IF KNOWN) :
DEVICE NAME : B.07 Stairway Chairlift
INDICATIONS FOR USE:
The product will be used by the patient to assist in navigating a specific set of stairs. This is a self-contained product that is mounted to the tread of a staircase. A trained dealer will install the unit, test it and teach the end user how to operate it. The typical user is someone who has limited function of their knees, hips or ankles and/or has trouble bending these joints. Other users include rehabilitated stroke victims, those inflicted with MS, arthritis, heart disease, and those who cannot handle the exertion of walking up and down stairs. The unit may be recommended by doctors or physical therapists, for those who are recuperating but a large number of users acquire a stairway elevator just because it eases the burden of climbing stairs, improving their quality of life. For those who are wheelchair bound, it requires that they be able to transfer and is usually an option only if the physical limitations of the residence prohibits a vertical elevator.
## (?LEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED.)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use (Per 21 CFR 801.109 OR
Over-The-Counter-Use (Optional Format 1)
Mark A. Milliken
vision Sion-Off ivision of General, Restorative and Neurological Devices
:10(k) Number K024345
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.