LIFT MASTER

K972563 · Mechanical Application Designs, Inc. · ITI · Aug 22, 1997 · Physical Medicine

Device Facts

• Record ID: K972563
• Device Name: LIFT MASTER
• Applicant: Mechanical Application Designs, Inc.
• Product Code: ITI · Physical Medicine
• Decision Date: Aug 22, 1997
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 890.3860
• Device Class: Class 2

Intended Use

THE LIFT MASTER ELEVATING POWER SEAT ASSEMBLY DESIGN IS INTENDED FOR USE ON A POWER AND MANUAL WHEELCHAIR. THE LIFT MASTER WILL ELEVATE PATIENTS TO A GREATER HEIGHT THAN THAT OF THE CONVENTIONAL SEAT HEIGHT OF A WHEELCHAIR.

Device Story

Lift Master is a mechanical elevating power seat assembly for power and manual wheelchairs. Device consists of a ball drive pedestal actuator, aluminum and steel brackets, safety cable, and wiring harness. It elevates the seat from 17.5" to 25.5" (8" range). Operates on rear-wheel drive systems and supports custom seating. Used by wheelchair users to reach higher positions. Provides speed reduction when in the elevated position. Stability is maintained during operation on terrain up to 9 degrees with a 250 lb weight limit.

Clinical Evidence

Bench testing only. Physical testing demonstrated that the device does not compromise wheelchair stability when driven in the elevated position on terrain up to 9 degrees with a maximum weight load of 250 lbs.

Technological Characteristics

Mechanical ball drive pedestal actuator; aluminum and steel brackets; safety cable; wiring harness. Operates on rear-wheel drive. 8-inch vertical travel range. No software or electronic processing components.

Indications for Use

Indicated for patients using power or manual wheelchairs who require elevation to a height greater than the conventional seat height.

Regulatory Classification

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.

Predicate Devices

• Permobil

Submission Summary (Full Text)

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DALVA R. ALEXANDER MECHANICAL APPLICATION DESIGNS, INC. 6819 HWY 90 BLVD., SUITE 680 KATY, TX 77491 [phone] [phone] FAX

Kg72563

CONTACT: DALVA R. ALEXANDER DATE PREPARED: MARCH 15, 1997 NAME OF DEVICE: LIFT MASTER SYSTEM WHEELCHAIR ELEVATOR TRADE NAME: PROPRIETARY NAME: LIFT MASTER PHYSICAL MEDICINE/POWERED WHEEL-CLASSIFICATION NAME: CHAIR PRODUCT CODE: 890-3860 SUBSTANTIAL EQUIVALENCE: PERMOBIL

THE LIFT MASTER CONSISTS OF A BALL DRIVE DESCRIPTION: PEDESTAL ACTUATOR WITH A LOAD CAPACITY OF 500 LBS., ALUMINUM AND STEEL BRACKETS, SAFETY CABLE, AND WIRING HARNESS. THE LIFT MASTER BEGINS WITH A SEAT TO FLOOR HEIGHT OF 17 1/2" AND ELEVATES 8" TO AN UPPER LIMIT OF 25 1/2". OTHER RANGES WILL BE AVAILABLE UPON REQUEST. THE SYSTEM HAS A SPEED REDUCTION CAPABILITY WHILE IN THE LIFTED POSITION. THE LIFT MASTER HAS A WEIGHT LIMIT OF 250 LBS. AND A HEIGHT LIMIT OF 6'. OPERATES ON REAR WHEEL DRIVE AND OFFERS CUSTOM SEATING CAPABILITIES.

THE LIFT MASTER ELEVATING POWER INTENDED USE: SEAT ASSEMBLY DESIGN IS INTENDED FOR USE ON A POWER AND MANUAL THE LIFT MASTER WILL ELEVATE PATIENTS TO A WHEELCHAIR. GREATER HEIGHT THAN THAT OF THE CONVENTIONAL SEAT HEIGHT OF A WHEELCHAIR.

THE PERMOBIL CHAIRMAN TECHNOLOGICAL CHARACTERISTICS: SYSTEM ELEVATES UP TO 8". PERMOBIL BUILDS THEIR OWN LIFTING TOWER, OPERATES ON FRONT WHEEL DRIVE, AND DOES NOT OFFER SEATING CAPABILITIES. CUSTOM MUST USE THEIR OWN MANUFACTURED SEAT. THE LIFT MASTER ELEVATES UP TO 8". THE LIFT MASTER USES AN ACTUATOR BY MOTION, OPERATES ON REAR WHEEL DRIVE AND OFFERS CUSTOM SEATING CAPABILITIES.

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NON CLINICAL TESTING: ATTACHMENT.

PLEASE REFER TO THE FOLLOWING

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## ATTACHMENT 11

## LIFT MASTER TESTING

## WHEN DRIVEN IN THE RECOMMENDED POSITION, LIFT MASTER HAS THE SAME STABILITY AS THE WHEELCHAIR MANUFACTURER'S HAD BEFORE INSTALLATION OF THE LIFT MASTER.

WHEN DRIVEN IN THE ELEVATED POSITION ON THE TERRAIN OF 0 DEGREES TO 9 DEGREES, IN THE DESIGNATED DRIVE I POSITION WITH THE MAXIMUM WEIGHT LIMIT OF 250 LBS., THE WHEELCHAIR CAN NOT BE TIPPED OR TURNED OVER AS OUR PHYSICAL TESTING HAS SHOWN UNDER THESE CONDITIONS.

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Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

Ms. Dalva R. Alexander Chief Executive Officer Mechanical Application Designs, Inc. 6819 Highway 90 Boulevard, Suite 680 Katy, Texas 77494

Re: K972563 Lift Master II Requlatory Class: Product Code: ITI Dated: August 11, 1997 Received: August 15, 1997 AUG 22 1997

Dear Ms. Alexander:

We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). You may, therefore, market the device, subject to the general controls provisions The general controls provisions of the Act of the Act. include requirements for annual reqistration, listing of devices, qood manufacturing practice, labeling, and prohibitions aqainst misbranding and adulteration.

If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), 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 895. ਜੋ substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirement, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic (QS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or requlations.

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Page 2 - Ms. Dalva R. Alexander

This letter will allow you to begin marketing your device as described in your 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 requlation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at [phone]. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at [phone]. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number [phone] or [phone] or at its internet address "http://www.fda.gov/cdrh/dsmamain.html".

Sincerely yours,

Celia M. Whitton, Ph.D.

a M. Witten, Ph.D., M.D. Director Division of General and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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## THE LIFT MASTER ELEVATING POWER SEAT ASSEMBLY DESIGN IS INTENDED FOR USE ON A POWER AND MANUAL WHEELCHAIR. THE LIFT MASTER WILL ELEVATE PATIENTS TO A GREATER HEIGHT THAN THAT OF THE CONVENTIONAL SEAT HEIGHT OF A WHEELCHAIR.

**Over-the-Counter Use** X

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(Division Sign-Off) Division of General Restorative Devices 510(k) Number