RTD ARM ASSISTIVE ROBOTIC DEVICE
K993443 · Rehabilitation Technologies Division · ITI · Dec 17, 1999 · Physical Medicine
Device Facts
| Record ID | K993443 |
| Device Name | RTD ARM ASSISTIVE ROBOTIC DEVICE |
| Applicant | Rehabilitation Technologies Division |
| Product Code | ITI · Physical Medicine |
| Decision Date | Dec 17, 1999 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 890.3860 |
| Device Class | Class 2 |
| Attributes | Therapeutic |
Intended Use
The RTD Arm is designed to be mounted on a powered wheelchair, and used to carry out simple manipulation tasks.
Device Story
RTD Arm is a wheelchair-mountable powered electromechanical arm for object manipulation by individuals with severe disabilities. Input: user-operated switch-based devices (joystick, head pad, sip-and-puff, or provided keypad). Operation: user guides arm joint-by-joint to target; activates gripper to grasp; directs to end point. Output: physical manipulation of objects. Context: mounted to powered wheelchair frame; powered by wheelchair battery. Safety: gripper strength limited to 5 psi; in-line slip clutches at each motor; low center of gravity mounting. Benefits: increased functional independence for users with limited upper extremity function.
Clinical Evidence
No clinical data provided; bench testing only.
Technological Characteristics
Wheelchair-mountable powered electromechanical arm. Four 24V motors controlled by solid-state motor controller. 4 degrees of freedom. 48-inch reach. Lifting capacity: 4 lbs at full reach, increasing as retracted. Safety features: in-line slip clutches (5 psi limit), gripper strength limit (5 psi). Powered by wheelchair battery. Mounting bracket secures unit behind front caster.
Indications for Use
Indicated for individuals with severe disabilities, including very limited or complete absence of bilateral upper extremity function, lower extremity impairment requiring a power wheelchair, and intact cognitive/visual perceptual ability. Target populations include high-level quadriplegia, neuromuscular disabilities, cerebral palsy, spina bifida, arthrogryposis, paraplegia, stroke, severe head injury, multiple fractures, and severe rheumatoid arthritis.
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
- Helping Hand (K954427)
- Prehensile Hand (K791931)
Related Devices
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- DEN120016 — DEKA ARM SYSTEM · Deka Integrated Solutions Corporation · May 9, 2014
- K151717 — twion · Alber GmbH · Feb 23, 2016
- K012345 — NEW HEIGHTS ELECTRIC ELEVATING MANUAL WHEELCHAIR · Bromac Assistive Technology · Oct 3, 2001
- K041346 — SYNERGY ULTIMATE · Pride Mobility Products Corp. · Sep 8, 2004
Submission Summary (Full Text)
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DEC 17 1999
Image /page/0/Picture/1 description: The image shows the logo for Rehabilitation Technologies Applied Resources Corp. The logo features a stylized letter "R" in black on the left side of the image. To the right of the "R" are the words "Rehabilitation Technologies" in bold, with the words "Applied Resources Corp." underneath.
## Rehabilitation Technologies Division
October 6, 1999
K993443
K993443
1052
510(k) Summary RE:
# Submitter's Name, Address, Phone number:
Rehabilitation Technologies Division 1275 Bloomfield Avenue Fairfield, New Jersey 07004 973-575-0650, fax: 973-575-0704
### Contact Person:
Richard M. Mahoney Director of Business Development
## Date Prepared:
October 6, 1999
#### Common Names:
Rehabilitation Robot
- Wheelchair Robot
- Assistive Robot
- Telethesis
- Robotic Aid
- Powered Arm
- Electric Reacher
### Proprietary/Trade Name:
RTD Arm
### Classification Name:
Prosthesis
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K993443
200
### Predicate Devices:
| Device Name | Company | 510(k) |
|-----------------|------------------------------------|---------|
| Helping Hand | Kinetic Rehabilitation Instruments | K954427 |
| Prehensile Hand | Therapeutic Recreation Systems | K791931 |
### Description:
The RTD Arm is a wheelchair-mountable powered electromechanical arm which permits persons with severe disabilities to manipulate objects in their personal environment. The RTD Arm is controlled through standard switch-based input devices and can be mounted on either side of most powered wheelchairs. At full reach (48 inches), the RTD Arm can lift four pounds and, as the arm is retracted, the lifting capacity becomes proportionally greater. The arm has 4 degrees of freedom to enable the arm to access an obiect, which is augmented by the two planar degrees of freedom of the wheelchair.
Using the RTD Arm input control device, the operator retrieves an object by quiding the arm one ioint at a time until it is in the correct position. The operator then activates the gripper to grasp the object and directs the arm to the desired end point. The arm can be operated by the user's existing chair switch mechanism (e.g. joystick, head pad sensor, or sip and puff), with wiring modifications, or with the 8 Position Joystick or Keypad provided with the arm. The arm includes four 24V motors controlled by a solid state motor controller powered by the wheelchair battery. Wheelchair installation is performed using a mounting bracket, which secures the unit to the chair frame directly behind the front caster.
The RTD Arm includes the following primary safety features:
Gripper strength limit. Iimited to 5 pounds per square inch.
Slip clutches. All joints include an in-line, maintenance-free slip clutch at each motor which begin to slip when 5 pounds per square inch is exerted by the arm.
Low center of gravity. The center of gravity of the arm is kept very low on the wheelchair by mounting it under the seat behind the front wheels. In most cases, the center of gravity of the overall chair and arm is lower than without the arm.
#### Intended Uses:
The RTD Arm is designed to be mounted on a powered wheelchair, and used to carry out simple manipulation tasks.
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Image /page/2/Picture/1 description: The image is a black and white logo for the U.S. Department of Health & Human Services. The logo features a stylized eagle with three lines forming its body and wings. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular pattern around the eagle.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
DEC 1 7 1999
Mr. Richard M. Mahoney Director of Business Development Rehabilitation Technologies Division 1275 Bloomfield Avenue Fairfield, New Jersey 07004
Re: K993443
Trade Name: RTD Arm Assistive Robotic Device Regulatory Class: II Product Code: ITI Dated: October 7, 1999 Received: October 12, 1999
Dear Mr. Mahoney:
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 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.
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. A 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 regulations.
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Page 2 - Mr. Richard M. Mahoney
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 regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4659. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. 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 (800) 638-2041 or (301) 443-6597 or at its Internet address "http://www.fda.gov/cdrh/dsmamain.html".
Sincerely yours,
Nil R.P. Ogden
James E. Dillard III
James E. Dillard II Acting Director Division of General and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health
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510(k) NUMBER (IF KNOWN): K993443 RTD ARM ASSISTIVE ROBOTIC DEVICE DEVICE NAME: INDICATIONS FOR USE:
The RTD Arm permits persons with severe disabilities to manipulate objects in their personal environment and thus to establish a greater measure of functional independence. The client population for this device includes individuals with
- very limited or complete absence of bilateral upper extremity ● function.
- lower extremity impairment requiring the use of a power . wheelchair, and
- intact cognitive and visual perceptual ability. .
The medical diagnoses of the target user populations include high-level quadriplegia, neuromuscular disabilities, cerebral palsy, and other congenital disabilities such as spina bifida, or arthrogryposis.
In addition, individuals with other types of disabilities resulting in permanent or temporary impairment to upper extremity function may also benefit from use of the RTD Arm as an aid in performing manipulation of objects. These disabilities include paraplegia, stroke, severe head injury, multiple broken bones, and severe rheumatoid arthritis, among others.
The RTD Arm may be purchased as an over-the-counter device.
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED).
Concurrence of CDRH, Office of Device Evaluation (ODE)
| (Division Sign-Off) | PRO for |
|-----------------------------------------|---------|
| Division of General Restorative Devices | |
| 510(k) Number | K993443 |
| Prescription Use<br>(Per 21 CFR 801.109) | OR | Over-The-Counter-Use<br>(Optional Format 1-2-96) |
|------------------------------------------|----|--------------------------------------------------|
| | | X |