K142912 · Merits Health Products Co., Ltd. · INI · Jun 23, 2015 · Physical Medicine
Device Facts
Record ID
K142912
Device Name
Merits Yoga Power Scooter, S542
Applicant
Merits Health Products Co., Ltd.
Product Code
INI · Physical Medicine
Decision Date
Jun 23, 2015
Decision
SESE
Submission Type
Abbreviated
Regulation
21 CFR 890.3800
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Merits Yoga Power Scooter, S542, is to provide mobility to adult persons limited to a sitting position and capable to operate a few simple controls.
Device Story
Battery-powered, three-wheeled motorized scooter; rear transaxle drive; controlled via PG S-Drive 45amp controller. User interface consists of wig-wag control lever and speed knob on tiller. Input: user manipulation of wig-wag lever. Transformation: controller releases solenoid electromechanical brakes (normally closed) to allow movement; releasing lever engages brakes for stop. Output: physical mobility. Used in indoor/outdoor environments on dry, level surfaces (concrete, asphalt). Operated by patient. Benefits: provides personal mobility for individuals with limited physical capacity; foldable frame for storage/transport.
Clinical Evidence
Bench testing only. No clinical data. Device performance validated against ISO 7176 series standards, including static/dynamic stability, braking effectiveness, obstacle climbing, electromagnetic compatibility, and fatigue strength. Lithium battery safety verified via UN 38.3 testing.
Technological Characteristics
Welded aluminum frame; 24V/11.5Ah Li-ion battery; PG S-Drive 45amp controller; solenoid electromechanical brakes (normally closed); front leaf spring suspension; PU tires. Complies with ISO 7176 series (stability, braking, dimensions, fatigue, EMC) and ISO 14971 (risk management). Upholstery meets ISO 7176-16:2012 ignition resistance.
Indications for Use
Indicated for adult persons with limited mobility who are restricted to a sitting position and possess the capability to operate simple controls.
Regulatory Classification
Identification
A motorized three-wheeled vehicle is a gasoline-fueled or battery-powered device intended for medical purposes that is used for outside transportation by disabled persons.
Predicate Devices
Travel Ease Electric Scooter, Model Pioneer 5 (K013788)
Submission Summary (Full Text)
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
June 23, 2015
Merits Health Products Co., Ltd. Vincent Chen, Manager No.18 Jingke Rd. Nantun District Taichung, 40852 Taiwan R.O.C.
Re: K142912
> Trade/Device Name: Merits Yoga Power Scooter, S542 Regulation Number: 21 CFR 890.3800 Regulation Name: Motorized Three-Wheeled Vehicle Regulatory Class: Class II Product Code: INI Dated: May 26, 2015 Received: June 1, 2015
Dear Mr. Chen,
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food. Drug. and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in
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the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours.
# Felipe Aquel -S
for Carlos L. Peña, PhD, MS Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known) K142912
Device Name Merits Yoga Power Scooter, S542
Indications for Use (Describe)
The Merits Yoga Power Scooter, S542, is to provide mobility to adult persons limited to a sitting position and capable to operate a few simple controls.
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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#### 510(k) SUMMARY
Merits Health Products Co., LTD. 510(k) Premarket Notification
#### Submitter:
Merits Health Products Co., LTD. No.18, Jingke Rd., Nantun Dist. Taichung City 40852, Taiwan (R.O.C.)
#### Contact Person:
Vincent Chen Merits Health Products Co., LTD. No.18, Jingke Rd., Nantun Dist., Taichung City 40852, Taiwan (R.O.C.) Phone: +886-4-23594985 ext.200 Fax: +886-4-23594992
#### Date Prepared:
Dec. 18, 2014
#### Proprietary Name:
Merits Yoga Power Scooter, S542
#### Common name:
Three Wheel Power Scooter
#### Classification name:
Physical Medicine / Motorized Three - Wheeled Vehicle
#### Product Code:
INI
# Regulation number:
890.3800
#### Comparison to Predicate Devices:
This submission indicates the Substantial Equivalence of the Merits Yoga Power Scooter, S542, with the predicate Travel Ease Electric Scooter, Model Pioneer 5 (K013788). S542 has the same intended uses and similar indications, technological characteristics and principles of operation with predicate device.
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#### Device Description
The Merits Yoga Power Scooter, S542, is battery powered, rear transaxle driven and is controlled by the PG S-Drive 45amp controller. The user interface is a wig-wag control lever and a speed knob on the control panel. S542 is powered by one 12 VDC 11.5Ah battery. The batteries are charged by 4.3A off-board charger connect with 3-pin Microphone Connector to charging socket on the rear shroud. The approximate driving range on fully charged batteries is up to 18km (11.3mi). The scooter frame is a welded aluminum construction and includes 2 rear wheels with drive units (including motor, gear box, and brake), a removable battery pack, a front wheel set which consists of 2 wheels for better stability and a tiller to control its turning direction. When the user activates the wig-wag control lever, the controller receives a signal to release the brakes. With the brakes released, the scooter is allowed to move forwards or backwards. When the user releases the control lever, the scooter slows to a stop and the brakes are automatically re-engaged. The solenoid electromechanical brakes allow the user stop by letting go of the control lever. The frame is designed to be foldable for easy storage and transportation.
For safety reason, this solenoid electromechanical brake is designed as normal close type. In case of the brake or electrical failure, the brake shoe will re-engage automatically to prevent the movement of the scooter. The upholstery of the device complies with ISO 7176-16:2012 Resistance to ignition of postural support devices.
The device can be operated on dry, level surfaces composed of concrete, blacktop, or asphalt under normal driving conditions.
The Merits Yoga Power Scooter. S542, is substantially equivalent to the Merits Travel Ease Electric Scooter, Model Pioneer 5 (K013788). Both products are battery power, motorized vehicles designed for use as personal power mobility aids. Performance characteristics and drive mechanisms are similar and all have the same intended function and use which is to provide outdoor and indoor mobility to persons limited to a seated position that are capable of operating a powered vehicle. Additional, they are all constructed from the same basic materials, have the same basic operational principles and all use DC batteries as their source of power.
Although there are some minor differences between S542 and its predicate device. But they raise no new issues of safety or effectiveness. Performance data demonstrate that S542 is safe. The non-clinical testing and the predicate comparisons demonstrate that any differences in their technological characteristics do not raise any new questions of safety or effectiveness.
#### Intended Use
The Merits Yoga Power Scooter, S542, is to provide mobility to adult persons limited to a sitting position and capable to operate a few simple controls.
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#### Discussion of Non-clinical Tests Performed for Determinations of Substantial equivalence are as follows:
- ISO 7176-1:1999 Determination of Static Stability
- ISO 7176-2:2001 Determination of Dynamic Stability of electric wheelchairs
- ISO 7176-3:2012 Determination of effectiveness of brakes
- Energy consumption of electric wheelchairs and scooters for ISO 7176-4:2008 determination of theoretical distance range
- Determination of overall dimensions, mass and maneuvering ISO 7176-5:2008 space
- Determination of maximum speed, acceleration and ISO 7176-6:2001 deceleration of electric wheelchairs
- ISO 7176-7:1998 Method of Measurement of Seating and Wheel Dimensions
- Requirements and test methods for static, impact and fatigue ISO 7176-8:1998 strengths
- ISO 7176-9:2009 Climatic tests for wheelchairs
- Determination of obstacle-climbing ability of electrically power ISO 7176-10:2008 wheelchairs
- ISO 7176-11:2012 Test dummies
- ISO 7176-13:1989 Determination of coefficient of friction of test surfaces
- Power and control systems for electrically powered ISO 7176-14:2008 wheelchairs and scooter- Requirements and test methods.
- Requirements for Information Disclosure, Documentation and ISO 7176-15:1996 Labeling
- ISO 7176-16:2012 Resistance to ignition of postural support devices
- requirements and test methods for electromagnetic ISO 7176-21:2009 compatibility of electrically powered wheelchairs and scooters, and battery chargers.
- Medical devices -- Application of risk management to medical ISO 14971:2007 devices
The results of the testing confirm that the device meets specifications and is substantially equivalent to the predicate device.
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### Substantial Equivalence Discussion
The Merits S542 Scooter is substantially equivalent to the Merits Travel Ease Electric Scooter, Model Pioneer 5 (K013788). Both products are battery power, motorized, seating systems designed for use with electric scooters. Performance characteristics and drive mechanisms are similar and all have the same intended function and use which is to provide mobility to adult persons limited to a sitting position and capable to operate a few simple controls. Additional, they are all constructed from the same basic materials, have the same basic operational principles and all use DC batteries as their source of power. The comparison table is as follow:
| Characteristics | | Merits Yoga Power Scooter,<br>S542 | Merits Travel Ease Electric<br>Scooter, Model Pioneer 5 |
|----------------------------|---------|---------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------|
| Intended Use | | To provide mobility to adult<br>persons limited to a sitting<br>position and capable to operate<br>a few simple controls. | To provide mobility to adult<br>persons limited to a sitting<br>position and capable to operate<br>a few simple controls. |
| Dimension | Length | 39" (±0.6") / 20.2" (±0.6") | 38.5" |
| | Width | 17.2" (±0.6") | 19.7" |
| | Height | 39.6" (±0.6") / 24.2" (±0.6") | 48" |
| Weight | Total | 56.7 lb | 92 lb |
| | Base | 53 lb (Seat Not Removable) | 50 lb |
| | Seat | | 19 lb |
| | Battery | 3.7lb | 23lb |
| Seat Height (From<br>Deck) | | 15.6" | 16" |
| Seat Width | | 14.2" | 14" |
| Seat Depth | | 12.4" | 12.5" |
| Armrest Type | | Removable & Flip Backward | Removable & Flip Backward |
| Weight Capacity | | 250 lb | 250 lb |
| Gradient | | 6° | 6° |
| Turning Radius | | 37.8" | 33.8" |
| Ground Clearance | | 3.7" | 2.4" |
| Tires | | Front: 6"/ Rear: 7" (PU Tires) | Front: 8"/ Rear: 8" (PU Tires) |
| Suspension | | Front Wheel Leaf Spring | No Suspension |
| Max. Speed | | 4 mph | 4.5 mph |
| Range up to | | 11.25 miles | 10 miles |
| Power | | 24V/11.5Ah Li-ion Battery | 24V/12Ah Lead Acid Battery |
There are some difference between S542 and its predicate device raise:
- a. Turning Radius: The device passed ISO 7176-2:2001(Determination of Dynamic Stability of electric wheelchairs): Item 10.3 and 10.4. So there is no deleterious affection of safety and effectiveness about the difference on Turning Radius with predicated device.
- b. Dimension: The device passed ISO 7176-1:1999 (Determination of Static Stability) and ISO 7176-2:2001(Determination of Dynamic Stability of electric wheelchairs). So there is no deleterious affection of safety and effectiveness about the difference on Dimension with predicated device.
- c. Range up to: The travel range of S542 is better than the predicated device.
- d. Max. Speed: The device has passed ISO 7176-2:2001(Determination of Dynamic Stability of electric wheelchairs) & ISO 7176-8 (Requirements and test methods for static, impact and fatigue strengths) test (Please see Appendix IV: Test reports). So there is no deleterious affection of safety and
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effectiveness about the difference on Max. Speed with predicated device.
- e. Weight: Although the total weight of S542 is lighter than Merits Travel Ease Electric Scooter, Model Pioneer 5 (K013788). The device has passed ISO 7176-8 (Requirements and test methods for static, impact and fatigue strengths) test (Please see Appendix IV: Test reports). So there is no deleterious affection of safety and effectiveness about the difference on Weight with predicated device. As the S542 is lighter than the predicate device, it is more suitable for user to carry and transport by vehicles.
- f. Battery: The S542 is using Li-ion Battery. It is lighter than the conventional Lead Acid Batteries. Although the capacity of the new battery is slightly smaller than the predicated device. Its travel rang is longer than the predicated device. The device has passed ISO 7176-8 (Requirements and test methods for static, impact and fatigue strengths) test (Please see Appendix IV: Test reports). And the Li-ion Battery has passed the UN 38.3 Transportation Testing Required for Lithium Battery Safety during Shipping to ensure its safety. (Please see Appendix X: Part I Test reports). So there is no deleterious affection of safety and effectiveness about the difference on Battery with predicated device.
- g. The seat height, width and depth for both devices are almost the same. They are all equipped with Removable and Flip Backward Armrest for users to leave the seats easily and more compact for storage.
The front wheel set of S542 is equipped with a leaf spring suspension. This makes the S542 more comfortable than the predicated device. The device has passed ISO 7176-2:2001(Determination of Dynamic Stability of electric wheelchairs) & ISO 7176-8 (Requirements and test methods for static, impact and fatigue strengths) test (Please see Appendix IV: Test reports). So there is no deleterious affection of safety and effectiveness about the difference on this suspension with the predicated device.
#### Conclusions
According to comparison table and discussions above, the differences on total weight, speed, battery size, suspension type and dimensions do not deleteriously affect the safety and effectiveness of the device.
So based on the design, performance specifications and testing and intended use, the Merits Yoga Power Scooter, S542, is substantially equivalent to the Merits Travel Ease Electric Scooter, Model Pioneer 5 (K013788).
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