YJ-K1/K2 Wheelchair (YJ-K1F 16 NDE; YJ-K1F 16 NDS; YJ-K1F 18 NDE; YJ-K1F 18 NDS; YJ-K1F 20 NDE; YJ-K1F 20 NDS; YJ-K1F 18 NDEE; YJ-K1F 16 VDE; YJ-K1F 16 VDS; YJ-K1F 18 VDE; YJ-K1F 18 VDS; YJ-K1F 20 VDE; YJ-K1F 20 VDS; YJ-K2 16 VDFE; YJ-K2 16 VDFS; YJ-K2 18 VDFE; YJ-K2 18 VDFS; YJ-K2 20 VDFE; YJ-K2 20 VDFS; YJ-K1G 18 NFFE; YJ-K1G 18 NFFS; YJ-K2TC 16 NAFE; YJ-K2TC 18 NAFE; YJ-K2TC 20 NAFE)

K232230 · Zhenjiang Assure Medical Equipment Co., Ltd. · IOR · Oct 3, 2023 · Physical Medicine

Device Facts

• Record ID: K232230
• Device Name: YJ-K1/K2 Wheelchair (YJ-K1F 16 NDE; YJ-K1F 16 NDS; YJ-K1F 18 NDE; YJ-K1F 18 NDS; YJ-K1F 20 NDE; YJ-K1F 20 NDS; YJ-K1F 18 NDEE; YJ-K1F 16 VDE; YJ-K1F 16 VDS; YJ-K1F 18 VDE; YJ-K1F 18 VDS; YJ-K1F 20 VDE; YJ-K1F 20 VDS; YJ-K2 16 VDFE; YJ-K2 16 VDFS; YJ-K2 18 VDFE; YJ-K2 18 VDFS; YJ-K2 20 VDFE; YJ-K2 20 VDFS; YJ-K1G 18 NFFE; YJ-K1G 18 NFFS; YJ-K2TC 16 NAFE; YJ-K2TC 18 NAFE; YJ-K2TC 20 NAFE)
• Applicant: Zhenjiang Assure Medical Equipment Co., Ltd.
• Product Code: IOR · Physical Medicine
• Decision Date: Oct 3, 2023
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 890.3850
• Device Class: Class 1

Intended Use

The YJ-K1/K2 Manual Wheelchair is to provide mobility to persons limited to a sitting position.

Device Story

The YJ-K1/K2 series are manually operated mechanical wheelchairs designed to provide mobility to individuals restricted to a sitting position. The device consists of a main frame, seat, back upholstery, armrests, footrests/leg rests, and four wheels. Larger rear wheels feature hand rims for manual propulsion by the user; push handles at the rear allow for propulsion by an assistant. The device is foldable for transport. Optional features include anti-tippers and brake extenders. It is intended for indoor or outdoor use on dry, level surfaces (concrete, blacktop, asphalt). The device is operated by the user or an assistant. It provides mobility, potentially improving patient independence and access to environments.

Clinical Evidence

No clinical data. Bench testing only. Compliance with ISO 7176 series (stability, brakes, dimensions, strength, ignition resistance) and ISO 10993 (cytotoxicity, sensitization, irritation) confirms safety and performance.

Technological Characteristics

Mechanical manual wheelchair. Foldable frame. Materials evaluated for biocompatibility per ISO 10993-1. Performance testing per ISO 7176-1, -3, -5, -7, -8, -11, -13, -15, -16, -22. Features include manual wheel locks, swing-away footrests or elevating leg rests, and optional anti-tippers/brake extenders.

Indications for Use

Indicated for persons limited to a sitting position requiring mobility assistance.

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

• Manual Wheelchair (A011) (K201461)

Submission Summary (Full Text)

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October 3, 2023

Zhenjiang Assure Medical Equipment Co., Ltd. % Eva Li Consultant Shanghai SUNGO Management Consulting Co., Ltd. Room 1401, Dongfang Building, 1500# Century Ave. Shanghai. 200122 China

Re: K232230

Trade/Device Name: YJ-K1/K2 Wheelchair (YJ-K1F 16" NDE: YJ-K1F 16" NDS: YJ-K1F 18" NDE: YJ-K1F 18" NDS; YJ-K1F 20" NDE; YJ-K1F 20" NDS; YJ-K1F 18" NDEE; YJ-K1F 16" VDE; YJ-K1F 16" VDS; YJ-K1F 18" VDE; YJ-K1F 18" VDS; YJ-K1F 20" VDE; YJ-K1F 20" VDS; YJ-K2 16" VDFE; YJ-K2 16" VDFS; YJ-K2 18" VDFE; YJ-K2 18" VDFS; YJ-K2 20" VDFE; YJ-K2 20" VDFS; YJ-K1G 18" NFFE; YJ-K1G 18" NFFS; YJ-K2TC 16" NAFE; YJ-K2TC 18" NAFE; YJ-K2TC 20" NAFE) Regulation Number: 21 CFR 890.3850 Regulation Name: Mechanical Wheelchair

Regulatory Class: Class I, reserved Product Code: IOR Dated: July 27, 2023 Received: July 27, 2023

Dear Eva Li:

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.

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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.

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.

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-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email ([e-mail]) or phone [phone] or 301-796-7100).

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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

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### Indications for Use

Submission Number (if known)

#### K232230

#### Device Name

YJ-K1/K2 Wheelchair (YJ-K1F 16" NDE; YJ-K1F 16" NDS; YJ-K1F 18" NDE; YJ-K1F 18" NDS; YJ-K1F 20" NDE; YJ-K1F 20" NDS; YJ-K1F 18" NDEE; YJ-K1F 16" VDE; YJ-K1F 16" VDS; YJ-K1F 18" VDE; YJ-K1F 18" VDS; YJ-K1F 20" VDE; YJ-K1F 20" VDS; YJ-K2 16" VDFE; YJ-K2 16" VDFS; YJ-K2 18" VDFE; YJ-K2 18" VDFS; YJ-K2 20" VDFE; YJ-K2 20" VDFS; YJ-K1G 18" NFFE; YJ-K1G 18" NFFS; YJ-K2TC 16" NAFE; YJ-K2TC 18" NAFE; YJ-K2TC 20" NAFE)

Indications for Use (Describe)

The YJ-K1/K2 Manual Wheelchair is to provide mobility to persons limited to a sitting 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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# 510(K) Summary

### 1. Submitter

Zhenjiang Assure Medical Equipment Co., Ltd. Address: No.297, Chuqiao Road, Zhenjiang City, Jiangsu Province, China Contact Person: Mei Ying Tel: [phone] Email: [e-mail]

Submission Correspondent

Contact: Eva Li

Phone: + 86 [phone]

Email: [e-mail]

Shanghai SUNGO Management Consulting Co., Ltd.

Room 1401, Dongfang Building, 1500# Century Ave, Shanghai, 200122 CHN

Prepared Date: Oct 1st ,2023

#### 2. Device

Name of Device: YJ-K1/K2 Wheelchair Common Name: Manual Wheelchair

Model(s):

| YJ-K1F 16" | YJ-K1F 16" | YJ-K1F 18" | YJ-K1F 18" | YJ-K1F 20" | YJ-K1F 20" |
|------------|------------|------------|-------------|-------------|-------------|
| NDE | NDS | NDE | NDS | NDE | NDS |
| YJ-K1F 18" | YJ-K1F 16" | YJ-K1F 16" | YJ-K1F 18" | YJ-K1F 18" | YJ-K1F 20" |
| NDEE | VDE | VDS | VDE | VDS | VDE |
| YJ-K1F 20" | YJ-K2 16" | YJ-K2 16" | YJ-K2 18" | YJ-K2 18" | YJ-K2 20" |
| VDS | VDFE | VDFS | VDFE | VDFS | VDFE |
| YJ-K2 20" | YJ-K1G 18" | YJ-K1G 18" | YJ-K2TC 16" | YJ-K2TC 18" | YJ-K2TC 20" |
| VDFS | NFFE | NFFS | NAFE | NAFE | NAFE |

Regulatory Information Classification Name: Mechanical Wheelchair Regulatory Class: I Product code: IOR Regulation Number: 890.3850 Review Panel: Physical Medicine

## 3. Predicate device:

K201461 Ningbo Shenyu Medical Equipment Co.,Ltd. Manual Wheelchair (A011) This predicate has not been subject to a design-related recall.

#### 4. Device description

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The YJ- K1,K2 series are mechanical wheelchairs which are a manually operated devices with wheels that are intended for medical purposes to provide mobility to persons restricted to a sitting position. It can be folded for transport by bring the two sides together. The manual wheelchair incorporates a main frame, a seat, two adjustable footrests and four wheels. The larger rear wheels have hand rims of slightly smaller diameter projecting just beyond the tire. These allows the user to manoeuvre the chair by pushing them on without requiring them to grasp the tires. The manual wheelchairs have brakes that bear on the tires of the rear wheels and two push handles at the upper rear of the frame to allow for manual propulsion by an assistant.

#### Main Components:

Main frame, back upholstery, seat upholstery, handgrip, armrest, front wheel, rear wheel, hand rim, crossbar, footplates, brake, leg rest, Anti-tipper (selected models), brake extender(selected models).

The device can be operated indoors, or outdoors on dry, level surfaces composed of concrete, blacktop, or asphalt under normal driving conditions.

#### 5. Indication for use

The YJ-K1/K2 Manual Wheelchair is to provide mobility to persons limited to a sitting position.

| Device | Predicate Device | Proposed Device | Results |
|--------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------|
| 510K Number | K201461 | K232230 | –– |
| Manufacturer | Ningbo Shenyu Medical<br>Equipment Co., Ltd. | Zhenjiang Assure Medical<br>Equipment Co., Ltd. | –– |
| Proprietary Name | Manual Wheelchair | YJ-K1/K2 Wheelchair | –– |
| Model | A011 | 24 models | –– |
| Classification | I | I | same |
| Indications for use | The A011 Manual wheelchair is to<br>provide mobility to persons<br>limited to a sitting position. | The YJ-K1/K2 Manual Wheelchair<br>is to provide mobility to persons<br>limited to a sitting position. | same |
| Design<br>Characteristic | Manual Operation, Four-Wheels,<br>Foldable, Cross-Brace, Pull-to-<br>Lock, Armrest, Backrest, Foot rest | Manual Operation, Four-Wheels,<br>Foldable, Cross-Brace, Pull-to-<br>Lock, Armrest, Backrest, Foot rest,<br>skirt guard, Anti-tipper (selected<br>models), brake extender(selected<br>models) | Similar*1 |
| Brake control | occupant-operated brake only | occupant-operated brake only | same |
| Operation<br>Environment | For indoor/outdoor use | For indoor/outdoor use | same |
| Control Mode | Mechanical | Mechanical | same |
| Size(unfold) | 1100 (L) *660 (W) * 910mm (H) | 1220 (L) *660/640/700 (W) *<br>857/908mm (H) | Different*2 |
| Stowage<br>length/width/height | 810 (L) X 320 (W) X 930mm (H) | 1220(L)*280/285/310(W)*857/90<br>8mm(H) | different*2 |
| Weight(Total) | 16kg(35.2lbs) | 20.0kg/22.6kg | different*2 |
| Weight Capacity | 136Kg(300lbs) | 136Kg(300lbs) | same |
| Seat Width | 480mm | 405/455/505mm | different*2 |
| Seat height | 540mm | 490mm/445mm | different*2 |
| Seat depth | 420mm | 16",18",20" | different*2 |
| Back type | Fixed | Fixed | same |
| Tires | Front: 200mm<br>Rear:610mm | Front: 193mm<br>Rear:610mm | different*2 |
| Armrest | Flip back armrest | Fixed/flip up | different*3 |
| Foot rest | Optional/ swing away Optional/<br>swing away | swing away footrest/ elevating leg<br>rest | same |
| Rear Axle Position | Single | Single | Same |
| Frame Construction | Foldable frame<br>Push inward from left and right<br>sides to fold | Foldable frame<br>Push inward from left and right<br>sides to fold | Same |
| Safety Feature | Manual Wheel Lock | Manual Wheel Lock | Same |
| Safe Operational<br>incline | Vertical forward tilt ≥10°, vertical<br>backward tilt ≥10°, and lateral tilt<br>≥15° | Vertical forward tilt ≥10° ,<br>vertical backward tilt ≥10° , and<br>lateral tilt ≥10° | Similar*2 |
| braking time | The manual wheelchair brake is<br>mechanical structure and manual<br>braking, and the braking time can<br>be ignored when it is used<br>immediately. | The manual wheelchair brake is<br>mechanical structure and manual<br>braking, and the braking time can<br>be ignored when it is used<br>immediately. | Same |
| braking distance | N/A | brake is mechanical structure and<br>manual braking, and the braking<br>distance can be ignored. | Similar*2 |
| Performance | Comply with:<br>ISO7176-1<br>ISO7176-3<br>ISO7176-5<br>ISO7176-7<br>ISO7176-8<br>ISO7176-11<br>ISO7176-13<br>ISO7176-15<br>ISO7176-16 | Comply with:<br>ISO7176-1<br>ISO7176-3<br>ISO7176-5<br>ISO7176-7<br>ISO7176-8<br>ISO7176-11<br>ISO7176-13<br>ISO7176-15<br>ISO7176-16 | Same |
| Biocompatibility | Comply with:<br>ISO10993-1<br>ISO10993-5<br>ISO10993-10 | Comply with:<br>ISO10993-1<br>ISO10993-5<br>ISO10993-10 | Same |

#### 6. Comparison of technological characteristics with the predicate device

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# Disscussion :

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| Similar*1: | Compare the predicate device, the subject device add two skirt guards which installed to the sides of the seat frame under the arm rests to provide a barrier between the occupants and the wheels. This feature can prevent occupant s' clothes from getting caught in the wheels. And the subject device equipped Anti-tipper (selected models), brake extender(selected models). This feature will not raise any new risk of safety or effectiveness. |
|--------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Different*2: | Compare the predicate device, the subject device have different value on the unfold size, stowage size, device weight, Capacity, Seat Width, Seat height, Seat depth, Tires size. However the subject has pass the <ISO 7176-7-1998 Part7: Measurement of seating and wheel dimensions > and <ISO 7176-5-2008 Part 5: Determination of dimensions, mass and manoeuvring space>, so the above different will not raise any new risk of safety or effectiveness. |
| Different*3: | Compare the predicate device, the subject device armrest have various options. These difference will not raise any new risk of safety or effectiveness. |
| Similar*2 | The Safe Operational incline is not identical, the subject device pass the bench performance. So it will not raise any new risk of safety or effectiveness. |

## 7. Summary of Non-Clinic Performance Testing

## Performance Testing

Non-clinical tests were conducted to verify that the subject device met all design specifications as was Substantially Equivalent (SE) to the predicate device. The test results demonstrated that the proposed device complies with the following standards:

ISO 7176-1:2014, Wheelchairs - Part 1: Determination of static stability

ISO 7176-3:2012 Wheelchairs - Part 3: Determination of effectiveness of brakes

ISO 7176-5: 2008 Wheelchairs - Part 5: Determination of overall dimensions, mass and maneuvering space

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 strengths

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 7176-15: 1996 Wheelchairs - Part 15: Requirements for information disclosure, documentation and labeling

ISO 7176-16:2012 Wheelchairs - Part 16: Resistance to ignition of postural support devices ISO 7176-22:2014 Wheelchairs — Part 22: Set-up procedures

## Biocompatibility

Biocompatibility testing was conducted in accordance with the 2020 FDA guidance Use of International Standard ISO 10993-1, "Biological Evaluation of Medical Devices – Part 1: Evaluation and testing within a risk management process." Testing included:

- · Cytotoxicity (ISO 10993-5:2009)
- Sensitization (ISO 10993-10:2010)
- Irritation (ISO 10993-10:2010)

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The testing supports the biocompatibility of the patient-contacting device materials that were shown to be non-cytotoxic, non-irritating, and non-sensitizing.

#### 8. Clinical Test Conclusion

No clinical study is included in this submission.

#### 9. Conclusion

The conclusion drawn from the nonclinical tests demonstrates that the subject device in 510(K) submission, the subject device is as safe, as effective, as the legally marketed predicate device cleared under K201461.