(90 days)
The Power Wheelchair is a motor driven, indoor and outdoor transportation vehicle with the intended use to provide mobility to a disabled or elderly person limited to a seated position.
This Power wheelchair, W5538, is a motor driven, indoor transportation vehicle, which a device for assisting action handicapped people and disabled people to move. It is suitable for disabled people with mobility difficulties and elderly people.
The device consists of front wheel, drive wheel, frame, controller, motor and drive devices, armrest, push-handle, backrest, seat cushion, footrest, battery box and charger.
The device is powered by a Li-ion Battery pack (24V 12Ah, 288Wh) with 15 Km (9.3 miles) range, which can be recharged by an off-board battery charger that can be plugged into an AC socket outlet (100-240V, 50/60Hz) when the device is not in use.
The user can activate the controller handle (joystick) to control the speed and direction of the wheelchair movement. In addition, when the patient releases the joystick, the joystick will return to the central position and the wheelchair will be automatically stopped soon due to automatic electromagnetic brake system. Once the joystick is activated again move to other position, the wheelchair will be re-energized.
Here's a breakdown of the acceptance criteria and study information for the Power Wheelchair (W5538), based on the provided text:
Important Note: This device is a power wheelchair, a physical product, not an AI/Software as a Medical Device (SaMD). Therefore, many of the requested categories (e.g., sample size for test set, number of experts, adjudication method, MRMC study, standalone performance, ground truth type for test/training set, training set sample size, how ground truth for training set was established) are not applicable to this type of medical device submission. The submission focuses on demonstrating substantial equivalence to a predicate device through adherence to recognized performance standards and comparative analysis of physical and technical specifications.
Acceptance Criteria and Reported Device Performance
| Acceptance Criteria Category | Reported Device Performance (W5538) | Discussion/Conclusion (relative to Predicate Device W5521) |
|---|---|---|
| General | ||
| Manufacturer | Zhejiang Innuovo Rehabilitation Devices Co., Ltd. | Same |
| Device classification | Class II | Same |
| Regulation name | Powered Wheelchair (21 CFR 890.3860) | Same |
| Product code | ITI | Same |
| Indication for use | Mobility to disabled/elderly person limited to a seated position (indoor & outdoor) | Same |
| Intended user | Disabled people with mobility difficulties and elderly people | Same |
| Use condition | Indoor and outdoor use | Same |
| Number of wheels | 6 (two front, two rear, two anti-tip) | Same |
| Function of wheels | Front: driven; Rear: driving; Anti-tip: preventing tipping | Same |
| Movement control method | By Joystick control | Same |
| Driving system | Direct drive on rear wheels | Same |
| Brake system | Automatic electromagnetic brake system | Same |
| Back cushion material | Polyester fabric | Same |
| Seat cushion material | Rubber patch cloth and Oxford fabric | Same |
| Armrest material | Polyurethane (PU) | Same |
| Specific Performance/Design | ||
| Main frame material | Magnesium alloy material | Different material, but performance tests (ISO 7176 series) confirm safety/effectiveness. |
| Total mass | 19 kg | Different weight due to frame material, no new safety/effectiveness concerns. |
| Overall Dimension (LWH) | 1030mm X 605mm X 940mm | Minor difference, validated with max rated weight dummy. |
| Stowage Dimension (LWH) | 360mm X 605mm X 790mm | Minor difference, validated with max rated weight dummy. |
| Front wheel size/type | 6.8" x 1.3" / PU Solid tire | Minor difference, no impact on performance. |
| Rear wheel size/type | 10.5" x 1.4" / PU Solid tire | Minor difference, no impact on performance. |
| Max speed forward | Up to 6.1 km/h (1.7 m/s), adjustable | Minor difference, validated with max rated weight dummy. |
| Max Speed backward | Less than 3 km/h (0.6 m/s) | Minor difference, no impact on performance. |
| Maximum safe operational incline degree | 10° | Minor difference, evaluated per ISO 7176 series for static/dynamic stability. |
| Braking distance | ≤1.2 m | Minor difference, no impact on performance. |
| Battery | Li-ion battery pack; rechargeable, 24 VDC 12Ah | Minor difference in capacity, no new safety/effectiveness concerns. |
| Battery charger | Off-board charger Input: 100-240V, 50/60Hz, 1.1A, Output: 24 Vdc, 2A | Minor difference in input current, no new safety/effectiveness concerns. |
| Max loading weight | 120 kg | Minor difference, validated per ISO 7176 series. |
| Maximum distance of travel on fully charged battery | 15 km | Minor difference, no new safety/effectiveness concerns. |
| Motor | Brushless DC motor; 24VDC; 250W; 2pcs | Minor difference in power, evaluated per ISO 7176-14, no new safety/effectiveness concerns. |
| Electronic controller | DZWN2435-BWL Controller | Similar to predicate, control system, joystick, brakes, user interface etc. evaluated per ISO 7176-14 and software validation. No new safety/effectiveness concerns. |
| Turning Radius | 900 mm | Minor difference due to size, may cause minor inconvenience but no new safety/effectiveness concerns. |
| Maximum obstacle climbing | 25 mm | Minor difference, no impact on safety/effectiveness. |
Study Details
-
Sample size used for the test set and the data provenance:
- This information is not directly applicable to a physical power wheelchair submission based on recognized standards. The "test set" here refers to the physical device itself being subjected to various ISO standard tests. The ISO standards specify test methodologies, but typically do not define a "sample size" in the context of clinical trials or data-driven AI systems.
- The provenance is that the tests were conducted by the manufacturer (or a testing lab on their behalf) to demonstrate compliance with the specified ISO standards for the Power Wheelchair (W5538).
-
Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
- Not applicable (N/A). This is a hardware device. "Ground truth" in this context would refer to the physical and functional parameters of the wheelchair, which are measured and compared against established engineering standards (ISO 7176 series). There are no "experts" establishing a diagnostic "ground truth" as there would be for an AI-driven diagnostic tool.
-
Adjudication method (e.g. 2+1, 3+1, none) for the test set:
- N/A. Adjudication methods like 2+1 or 3+1 are used for establishing ground truth in expert-labeled datasets, typically for AI/software evaluations. In hardware testing, the device's performance is measured against objective, quantifiable criteria defined by the ISO standards. There is no subjective interpretation requiring adjudication.
-
If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:
- No. This is a power wheelchair, a physical mobility device. An MRMC study is designed for evaluating the impact of AI assistance on human diagnostic performance (e.g., radiologists reading images). It is not relevant to this device.
-
If a standalone (i.e. algorithm only, without human-in-the-loop performance) was done:
- N/A. This is not an algorithm or AI system. It's a complete physical device (power wheelchair). However, the "standalone performance" could be viewed as the wheelchair's ability to perform safely and effectively on its own (e.g., maintaining stability, braking distance) when operated by a user, which is what the ISO standards verify.
-
The type of ground truth used (expert consensus, pathology, outcomes data, etc.):
- International Standards and Engineering Specifications. The "ground truth" for this device's performance is established by widely recognized international standards for wheelchairs (ISO 7176 series) and general medical device standards (ISO 14971 for risk management, IEC 60601-1-2 for electromagnetic compatibility, ISO 10993 series for biocompatibility). These standards define acceptable performance ranges and test methodologies.
-
The sample size for the training set:
- N/A. This refers to machine learning models. For a physical device, there is no "training set."
-
How the ground truth for the training set was established:
- N/A. As there is no training set for a physical device, this question is not applicable.
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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA text logo on the right. The text logo has the FDA acronym in a blue square, followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in blue.
November 18, 2024
Zhejiang Innuovo Rehabilitation Devices Co., Ltd. % Ivv Wang Technical Manager Shanghai Sungo Management Consulting Company Limited 14th Floor, Dongfang Building, 1500# Century Ave Shanghai. 200122 China
Re: K242471
Trade/Device Name: Power Wheelchair (W5538) Regulation Number: 21 CFR 890.3860 Regulation Name: Powered Wheelchair Regulatory Class: Class II Product Code: ITI Dated: August 20, 2024 Received: August 20, 2024
Dear Ivy Wang:
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 (the 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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database available at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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.
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Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30. Design controls; 21 CFR 820.90. Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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 of medical device-related adverse events) (21 CFR Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-device-advicecomprehensive-regulatory-assistance/unique-device-identification-system-udi-system.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatory
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assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Tushar Bansal -S
for Heather Dean, PhD Assistant Director, Acute Injury Devices Team DHT5B: Division of Neuromodulation and Physical Medicine Devices OHT5: Office of Neurological and Physical Medicine Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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Indications for Use
Submission Number (if known)
Device Name
Power Wheelchair (W5538)
Indications for Use (Describe)
The Power Wheelchair is a motor driven, indoor and outdoor transportation vehicle with the intended use to provide mobility to a disabled or elderly person limited to a seated position.
Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D)
X Over-The-Counter Use (21 CFR 801 Subpart C)
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K242471
510(k) Summary
l. SUBMITTER
Name: Zhejiang Innuovo Rehabilitation Devices Co., Ltd.
Address: No.196 Industry Road, Hengdian Movie Zone, Dongyang, Zhejiang, China
Name of contact person: Grace Li
Telephone: +86 15924234767
Fax: +86-579-89327232
Email: Lss@kf-innuovo.com
Date prepared: 2024-08-08
II. Device
Device trade name: Power Wheelchair, W5538
Common name: Power Wheelchair
Classification name: Powered wheelchair
Regulation class: 2
Regulation number: 21CFR 890.3860
Panel: Physical Medicine
Product code: ITI
III. Predicate device
Power Wheelchair, W5521
Zhejiang Innuovo Rehabilitation Devices Co., Ltd.
IV. Device description
This Power wheelchair, W5538, is a motor driven, indoor transportation vehicle, which a device for assisting action handicapped people and disabled people to move. It is suitable for disabled people with mobility difficulties and elderly people.
The device consists of front wheel, drive wheel, frame, controller, motor and drive devices, armrest, push-handle, backrest, seat cushion, footrest, battery box and charger.
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The device is powered by a Li-ion Battery pack (24V 12Ah, 288Wh) with 15 Km (9.3 miles) range, which can be recharged by an off-board battery charger that can be plugged into an AC socket outlet (100-240V, 50/60Hz) when the device is not in use.
The user can activate the controller handle (joystick) to control the speed and direction of the wheelchair movement. In addition, when the patient releases the joystick, the joystick will return to the central position and the wheelchair will be automatically stopped soon due to automatic electromagnetic brake system. Once the joystick is activated again move to other position, the wheelchair will be re-energized.
V. Indication for use
The Power Wheelchair is a motor driven, indoor and outdoor transportation vehicle with the intended use to provide mobility to a disabled or elderly person limited to a seated position.
| VI. Comparison of technological characteristics with the predicate device | |||
|---|---|---|---|
| Attribute | Predicate device | Subject device | Discussion/Conclusion |
|---|---|---|---|
| Manufacturer | Zhejiang Innuovo Rehabilitation Devices Co., Ltd. | Zhejiang Innuovo Rehabilitation Devices Co., Ltd. | / |
| Proprietary name, model | Power Wheelchair, W5521 | Power Wheelchair, W5538 | / |
| 510(k) number | K231508 | K242471 | / |
| Device classification name | Class II | Class II | Same |
| Classification regulations | 21 CFR 890.3860 | 21 CFR 890.3860 | Same |
| Product code | ITI | ITI | Same |
| Similarities | |||
| Indication for use | The Power Wheelchair is a motor driven, indoor and outdoor transportation vehicle with the intended use to provide mobility to a disabled or elderly person limited to a seated position. | The Power Wheelchair is a motor driven, indoor and outdoor transportation vehicle with the intended use to provide mobility to a disabled or elderly person limited to a seated position. | Same |
| Intended user | disabled people with mobility difficulties and elderly people | disabled people with mobility difficulties and elderly people | Same |
| Use condition | indoor and outdoor use | indoor and outdoor use | Same |
| Number of wheels | 6, including two front wheels | 6, including two front wheels | Same |
| Attribute | Predicate device | Subject device | Discussion/Conclusion |
| and two rear wheels, twoanti-tip wheels | wheels and two rearwheels, two anti-tip wheels | ||
| Function of wheels | Front wheels: driven wheelssuitable for rotation,acceleration, retrogradeRear wheels: driving wheelsto control the speed anddirectionAnti-tip wheels: preventingthe wheelchair from tippingturning over when driving onthe slope. Non-adjustable. | Front wheels: driven wheels suitable for rotation,acceleration, retrogradeRear wheels: drivingwheels to control the speedand directionAnti-tip wheels: preventingthe wheelchair from tippingturning over when driving onthe slope.Non-adjustable. | Same |
| Movement controlmethod | By Joystick control | By Joystick control | Same |
| Driving system | Direct drive on the rearwheels | Direct drive on the rearwheels | Same |
| Brake system | Automatic electromagneticbrake system | Automatic electromagneticbrake system | Same |
| back cushion | Polyester fabric | Polyester fabric | Same |
| seat cushion | rubber patch cloth andOxford fabric | rubber patch cloth andOxford fabric | Same |
| Armrest | Polyurethane (PU) | Polyurethane (PU) | Same |
| Differences | |||
| Main frame material | aluminum alloy | Magnesium alloy material | Different material usedfor frame, that suchdifference will notimpact the safety andeffectiveness of thesubject device as theperformance tests areconducted accordingto ISO 7176 series. |
| Total mass | 25kg | 19kg | Different framematerial causeddifferent weight of thewheelchair. Thisdifference will notraise any new safetyand effectivenessconcerns. |
| Overall Dimension | 1040mmX600mmX1020mm | 1030mmX605mmX940mm | Minor difference on |
| Attribute | Predicate device | Subject device | Discussion/Conclusion |
| (lengthwidthheight)Stowage Dimension(lengthwidthheight) | 390mmX600mmX810mm | 360mmX605mmX790mm | wheelchair dimension will not cause different performance. All safety and performance have been validated with the maximum rated weight dummy. |
| Front wheel size/type | 7.8" x 1.9"/ PU Solid tire | 6.8" x 1.3"/PU Solid tire | Minor difference on dimension of driven wheel will not cause different performance. |
| Rear wheel size/type | 11.8" x 2.2"/ PU Solid tire | 10.5"x 1.4"/ PU Solid tire | wheel will not cause different performance. |
| Max speed forward | Up to 5.47 km/h (1.52 m/s), adjustable | Up to 6.1 km/h (1.7 m/s), adjustable | minor difference on max. forwarding speed will not cause different performance. All safety and performance have been validated with the maximum rated weight dummy. |
| Max Speed backward | Less than 3 km/h (0.9m/s) | Less than 3 km/h (0.6m/s) | minor difference on max. back warding speed will not cause different performance. |
| Maximum safe operational incline degree | 6° | 10 ° | minor difference on safe operational incline degree will not cause new safety and effectiveness concerns are raised as both the static and dynamic stability under specific inclining degree have been evaluated according to standard ISO 7176 series. |
| Braking distance | ≤1 m | ≤1.2 m | minor difference on braking distance will not cause different performance. Shorter |
| Attribute | Predicate device | Subject device | Discussion/Conclusion |
| Battery | li-ion battery pack; rechargeable, 24 VDC 10Ah | li-ion battery pack; rechargeable, 24 VDC 12Ah | minor difference on battery capacity will not cause different performance. This difference will not raise any new safety and effectiveness concerns. |
| Battery charger | Off-board charger Input: 100-240V, 50/60Hz, 1.5A, Output: 24 Vdc, 2A; | Off-board charger Input: 100-240V, 50/60Hz, 1.1A, Output: 24 Vdc, 2A; | Minor difference on the input current of the charger which will not cause new safety and effectiveness concerns raised. |
| Max loading weight | 136kg | 120kg | Minor difference on loading weight will not cause different performance. All safety and performance have been validated according to ISO 7176 series. |
| Maximum distance of travel on the fully charged battery | 10km | 15 km | Minor difference on travel distance will not cause different performance. This difference will not raise any new safety and effectiveness concerns |
| Motor | Brush DC motor; 24VDC; 200W; 2pcs | Brushless DC motor; 24VDC; 250W; 2pcs | minor difference on motor power will not cause different performance. Both of the motors are evaluated according to standard ISO 7176-14 and there are no new safety and |
| Attribute | Predicate device | Subject device | Discussion/Conclusion |
| Electronic controller | Micon M7086 controller | DZWN2435-BWL Controller | Similar controller is used, both the control system, including the joystick controller, the electromagnetic brakes and the user interface are similar. The joystick controls the directions and speed of movement, and when the joystick is released, the powered wheelchair will slow down to stop and the brakes will automatically re-engage. The controller also provides the battery status displaying and abnormal condition displaying. Both of the control systems are evaluated according to standard ISO 7176-14 and software validation requirement and there are no new safety and effectiveness concerns due to the difference. |
| Turning Radius | 600 mm | 900 mm | The minor difference in the turning radius is caused by different size of wheelchair and may cause a little bit inconvenience when it turns in a narrow |
| Attribute | Predicate device | Subject device | Discussion/Conclusion |
| space while the minordifference will notraise any new safetyandeffectivenessconcerns. | |||
| Maximum obstacleclimbing | 40 mm | 25 mm | Minor difference in theobstacle climbing willnot impact the safetyand effectiveness ofthe subject device. |
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VII. Summary of substantial equivalence discussion
The power wheelchair complied with the requirements of ISO 7176-1:2014, ISO 7176-2:2017, ISO 7176-3:2012, ISO 7176-4:2008, ISO 7176-5:2008, ISO 7176-6:2018, ISO 7176-7:1998, ISO 7176-8:2014, ISO 7176-9:2009, ISO 7176-10:2008, ISO 7176-11:2012, ISO 7176-13:1989, ISO 7176-14:2022, ISO 7176-15:1996, ISO 16840-10:2021, ISO 7176-21:2009, ISO 7176-22:2014, ISO10993-5:2009, ISO 10993-10:2021, ISO 10993-23: 2021, IEC60601-1-2: 2020.
The indications for use for both devices are the same. Mainframes of two devices are folded by way of front and rear close, and frame materials all meet the Tensile Strength, Yield Load, and Elongation tests. The design principles of the controller and Driving system are the same, and both meet the requirements of the ISO 7176-14. Software validation is carried out on both control systems. Brake system and speed control are designed in the same way as well, and both meet the requirements of the ISO 7176-3. Turning radius, maximum obstacle climbing and Maximum safe operational incline are slightly different while such differences will not impact the safety and effectiveness of the subject device or raise new safety and effectiveness concerns as well as both meet the requirements of the ISO 7176-2 and ISO 7176-10.
The flame-retardant test of the seat cushion/ backrest of both subject device and predicate device is carried out according to the ISO 16840-10 test. Therefore, both devices are assured to be under the same safety level.
In conclusion, the technological characteristics, features, specifications, materials, mode of operation, and intended use of the device substantially equivalent to the predicate devices quoted above. The differences between the subject device and predicate devices do not raise
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new issues of safety or effectiveness. The differences between the subject device and predicate devices do not raise new issues of safety or effectiveness.
VIII. Summary of non-clinical testing
A Performance testing-bench
The following performance data were provided to verify that the subject device met all design specifications and provided support of the substantial equivalence determination.
- Risk Analysis developed in accordance with ISO 14971:2019.
- Software validation
- ISO 7176-1:2014 Wheelchairs - Part 1: Determination of static stability
- . ISO 7176-2:2017 Wheelchairs - Part 2: Determination of dynamic stability of electric wheelchairs
- . ISO 7176-3:2012 Wheelchairs - Part 3: Determination of effectiveness of brakes
- ISO 7176-4:2008 Wheelchairs - Part 4: Energy consumption of electric wheelchairs and scooters for determination of theoretical distance range
- . ISO 7176-5:2008 Wheelchairs - Part 5: Determination of dimensions, mass and maneuvering space
- . ISO 7176-6:2018 Wheelchairs - Part 6: Determination of maximum speed, acceleration and deceleration of electric wheelchairs
- . ISO 7176-7:1998 Wheelchairs - Part 7: Measurement of seating and wheel dimensions
- ISO 7176-8:2014 Wheelchairs - Part 8: Requirements and test methods for static, impact and fatigue strength
- ISO 7176-9:2009 Wheelchairs - Part 9: Climatic tests for electric wheelchairs
- . ISO 7176-10:2008 Wheelchairs - Part 10: Determination of obstacle-climbing ability of electrically powered wheelchairs
- ISO 7176-11:2012 Wheelchairs -- Part 11: Test dummies
- ISO 7176-13:1989 Wheelchairs - Part 13: Determination of coefficient of friction of test surfaces.
- . ISO 7176-14:2022 Wheelchairs -- Part 14: Power and control systems for electrically powered wheelchairs and scooters -- Requirements and test methods
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- . ISO 7176-15:1996 Wheelchairs - Part 15: Requirements for information disclosure, documentation and labeling.
- . ISO 16840-10: 2021 Wheelchair seating - Part 10: Resistance to ignition of postural support devices - Requirements and test method
- . ISO 7176-21:2009 Wheelchairs - Part 21: Requirements and test methods for electromagnetic compatibility of electrically powered wheelchairs and scooters
- . ISO 7176-22: 2014 Wheelchairs - Part 22: Set-up procedures
- . ISO 7176-25:2013 Wheelchairs - Batteries and chargers for powered wheelchairs
- . Electromagnetic Compatibility Testing in accordance with IEC 60601-1-2:2020.
A Biocompatibility of patient-contacting material
The biocompatibility of the subject device was determined via the declaration of identical tissue-contacting materials to the predicate device, which evaluated biocompatibility according to the ISO 10993-5: 2009 and ISO 10993-10:2010 standards.
IX. Summary of clinical testing
No animal study and clinical studies are available for our device. Clinical testing was not required to demonstrate the substantial equivalence of the electric wheelchair to its predicate device.
X. Conclusions
The conclusions drawn from the nonclinical tests demonstrate that the subject device is as safe, as effective, and performs as well as the legally marketed predicate device K231508.
§ 890.3860 Powered wheelchair.
(a)
Identification. A powered wheelchair is a battery-operated device with wheels that is intended for medical purposes to provide mobility to persons restricted to a sitting position.(b)
Classification. Class II (performance standards).