The Kuschall Champion, Compact and Ultra-light are mechanical wheelchairs intended to provide mobility to persons restricted to a sitting position.
Device Story
Manually operated, user-propelled mechanical wheelchairs; intended for indoor/outdoor mobility for persons restricted to seated position. Construction includes metal frame (aluminum or carbon fiber), large rear wheels with hand rims, and front pivoting casters. Kuschall Champion features horizontal folding mechanism via hinged connecting arms; Kuschall Compact and Ultra-Light feature traditional vertical 'X' cross-brace folding mechanism. Devices are non-rigid and foldable for transport. Operated by user or caregiver; no electronic components or software.
Clinical Evidence
Bench testing only. Compliance with EN 12183, prEN 12182, EN 1041, ISO 7176 (parts 1, 3, 8, 11, 13, 15, 16), ISO 8191 (parts 1, 2), ISO 9999, ISO 6440, and CA Bulletin 117. Testing confirmed requirements for static stability, brake efficiency, and static/impact/fatigue strength were met.
Technological Characteristics
Manual wheelchair; aluminum or carbon fiber frame; folding mechanism (horizontal or vertical X-brace); rear wheels with hand rims; front pivoting casters. Standards: EN 12183, prEN 12182, ISO 7176 series (stability, brakes, strength, friction, labeling, ignition resistance), ISO 8191 (upholstery ignitability), ISO 9999, ISO 6440, CA Bulletin 117. No energy source; no software.
Indications for Use
Indicated for persons restricted to a sitting position requiring a manual wheelchair for mobility.
Regulatory Classification
Identification
A mechanical wheelchair is a manually operated device with wheels that is intended for medical purposes to provide mobility to persons restricted to a sitting position.
Predicate Devices
Invacare Action AF-1 (now known as 'The Spyder') (K000174)
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MAY 1 2 2004
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K044072
Invacare Corporation
510(k) Submission Page 7
## 510(K) SUMMARY KUSCHALL CHAMPION, COMPACT AND ULTRA-LIGHT
This summary of 510(k) safety and effectiveness information is being supplied in accordance with the requirements of the SMDA of 1990 and 21 CFR 807.92
The assigned 510(k) number is:
Date: april 23, 2004
Submitted by: Kuschall Design AG Ringstrasse 15 Allschwill, Switzerland CH-4123
Contact Telephone: 440-329-6356 Fax: 440-326-3607
Contact Person: Carroll L. Martin, Regulatory Affairs
Trade Name: Kuschall Champion, Kuschall Compact and Kuschall Ultra-Light
Common Name: Manual wheelchair
Classification Name: Wheelchair, mechanical per 21 CFR section 890.3850
# Legally Marketed Predicate Device(s): Invacare Action AF-1 (now known as "The Spyder"), K000174, February 18, 2000 Invacare MVP, K914553, October 28, 1991
Device Description: The Kuschall Champion, Compact and Ultra-Light are manually operated, userpropelled mechanical wheelchairs. Their intended use is to provide mobility to persons restricted to a seated position.
Each wheelchair consists primarily of a metal frame that is constructed of round and oval aluminum tubing that is welded, large rear wheels with hand rims for propelling the chair and smaller front pivoting casters for steering and turning. The Kuschall Champion is also available with a carbon fiber frame. The products are designed to be lightweight, everyday wheelchairs for both indoor and outdoor use. They are all folding, non-rigid wheelchairs.
Intended Use: The intended use of the Kuschall Champion, Compact and Ultra-Light manual wheelchairs is to provide mobility to persons restricted to a seated position.
Substantial Equivalence: Product that is substantially equivalent to the Kuschall Champion is the Invacare Action AF-1, (K000174, Fcbruary 18, 2000) now known as "The Spyder". These products are both manually operated, user propelled mechanical whechchairs with the intended use of providing
INVACARE CORPORATION
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mobility to persons restricted to a seated position. Both products consist basically of a metal frame, larger rear wheels with hand rims for propelling the wheelchair and smaller front pivoting casters for steering and turning.
The Kuschall Champion folds using two connecting arms that are hinged together in the center of the wheelchair, but are also hinged at the side frames. As such, the chair essentially folds "horizontally", the same manner in which the Invacare AF-1 folds, as opposed to the vertical folding of a cross brace wheelchair.
The folding mechanism allows the backrest and the seat to be folded simultaneously. The frame remains closed by the use of a Velcro strap while transferring the chair into the car.
The Kuschall Compact and Ultra-Light are similar to the Invacare MVP (K914553, October 28, 1991) in that all three wheelchairs are manually-operated, user propelled mechanical wheelchairs with the intended use of providing mobility to persons restricted to a seated position. All three devices consist basically of a metal frame, larger rear wheels with hand rims for propelling the wheelchair and smaller front pivoting casters for steering and turning.
The Kuschall Compact, Ultra-Light and Invacare MVP all have the ability to fold and fold in the traditional "vertical" manner. The folding mechanism is of the "X" cross brace design whereby the lower frames cross, or form an "X" in the center and are hinged at a single pivot point for folding. These chairs fold by collapsing "vertically" about the center pivot point
Additional similarities and differences are listed in the substantial equivalence matrices for each compared product. None of the differences alter the intended function and use of the devices nor do they raise any new questions of safety and effectiveness.
Software: No software is associated with these devices.
Performance Data: The following performance standards were used during the development of the Kuschall Champion, Compact and Ultra-Light and it has been determined that each wheelchair met the applicable specified requirements:
- -EN 12183: The Swedish Handicap Institute's Specification of Requirements for Manually Propelled Wheelchairs
- prEN 12182: Technical Aids for Disabled Persons General Requirements and Test -Methods
- EN 1041: Information Supplied by the Manufacturer with Medical Devices -
- -ISO 7176-1: Wheelchairs -- Part 1: Determination of Static Stability
- ISO 7176-3: Wheelchairs Part 3: Determination of Efficiency of Brakes -
- -ISO 7176-8: Wheelchairs - Part 8: Requirements and Test Methods for Static, Impact and Fatigue Strengths
- ISO 7176-11: Wheelchairs -- Part 11: Test Dummics -
- ー ISO 7176-13: Wheelchairs - Part 13: Determination of Coefficient of Friction of Test Surfaces
### INVACARE CORPORATION
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- ISO 7176-15: Wheelchairs Part 15: Requirements for Information Disclosure, -Documentation and Labeling
- ISO 7176-16: Wheelchairs Part 16: Resistance to Ignition of Upholstered Parts --Requirements and Test Methods
- ISO 8191-1: Furniture Part 1: Assessment of The Ignitability of Upholstered Furniture; -Ignition Source: Smoldering Cigarette
- ISO 8191-2: Furniture -- Part 2: Assessment of Ignitability of Upholstered Furniture; -Ignition Source: Match-Flame Equivalent
- ISO 9999: Technical Aids for Disabled Persons Classification ェ
- ISO 6440: Wheelchairs Nomenclature Terms and Definitions -
- CA Bulletin 117 Testing the Flame Retardance of Resilient Filling Materials Used in ﯿ Upholstered Furniture
#### INVACARE CORPORATION
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Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
MAY 1 2 2004
Carroll I.. Martin Regulatory Affairs Invacare Corporation One Invacare Way P.O. Box 4028 Elyria, Ohio 44036-2125
Re: K041072
Trade/Device Names: Kuschall Champion, Kuschall Compact and Kuschall Ultra-light Regulation Number: 21 CFR 890.3850 Regulation Name: Mechanical wheelchair Regulatory Class: I Product Code: IOR Dated: April 23, 2004 Received: April 26, 2004
Dear Mr. Martin:
We have reviewed your Scction 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 adultcration.
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.
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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,
for Mark A. Melkersen
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
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# Indications for Use
Invacare Corporation 510(k) Submission Page 5
510(k) Number (if known):
Device Name: Kuschall Champion Kuschall Compact Kuschall Ultra-light
Indications for Use:
The Kuschall Champion, Compact and Ultra-light are mechanical wheelchairs intended to provide mobility to persons restricted to a sitting position.
Prescription Use (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 807 Subpart C)
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r
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of OORH, Office of Device Evaluation (ODE)
(Division Sign-Off)
Division of General, Restorative,
and Neurological Devices
510(k) Number K041072
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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.
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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).
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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.
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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
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Reading rule for every project: how many summaries do you read in full?
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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.
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Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
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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.