K Number
K090750
Device Name
RT300-SL, MODEL FA100052; RT300-SLSA, MODEL FA104581
Date Cleared
2009-08-05

(138 days)

Product Code
Regulation Number
882.5810
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The RT300 (adult and pediatric version) are intended for general rehabilitation for: a. Relaxation of muscle spasms b. Prevention or retardation of disuse atrophy c. Increasing local blood circulation d. Maintaining or increasing range of motion The RT300 is for prescription use only. The RT300 pediatric version is intended for population ages 4 to 12 years. The RT300 is intended for use with a surface electrical stimulation garment for population ages 12 and above.
Device Description
The RT300 is a Functional Electrical Stimulation (FES) cycle ergometer which is composed of: - a motorized leg cycle ergometer (RTI part number SA100047 for adults and SA100044 for children) - an optional motorized arm crank (RTI part number PP102663) - an FES controller with built in 6 channel stimulator (RTI part number SA100090) - up to 5 additional wireless single channel stimulators (RTI part number FA106897) - a leg and optional arm stimulation cable (either bilateral or unilateral) which connects the controller / stimulator to cutaneous electrodes - cutaneous electrodes (up to 22 electrodes for up to 11 stimulation channels) - an interface to a remote database for the storage and retrieval of therapy settings and the storage of therapy session logs - an interface to a pulse oximeter for the display and recording of pulse and SpO2 levels and provision of alarming based on the data - a stimwear garment incorporating electrodes for lower extremity cycling in population ages 12 and above (RTI part number FA105486) This system allows a person with impaired upper or lower extremity movement to undertake cycle ergometry both actively (utilizing FES evoked upper or lower extremity muscle contractions) and passively (utilizing power developed by the ergometer's motor).
More Information

Not Found

No
The summary describes a functional electrical stimulation (FES) cycle ergometer with various components and functionalities related to muscle stimulation and exercise. There is no mention of AI, ML, or any related concepts in the intended use, device description, or performance studies. The testing described is focused on the electrical stimulation and mechanical aspects of the device, not on algorithmic learning or adaptation.

Yes
The "Intended Use / Indications for Use" section explicitly states that the device is intended for general rehabilitation, including relaxation of muscle spasms, prevention of disuse atrophy, increasing local blood circulation, and maintaining or increasing range of motion, all of which are therapeutic applications.

No
The Intended Use / Indications for Use describe therapeutic applications like relaxation of muscle spasms and increasing local blood circulation, not diagnostic purposes. While it integrates a pulse oximeter for displaying and recording pulse and SpO2 levels, this is for monitoring during therapy, not for diagnosing a medical condition.

No

The device description explicitly lists multiple hardware components, including a cycle ergometer, arm crank, FES controller with built-in stimulator, wireless stimulators, cables, electrodes, and a stimwear garment. This is not a software-only device.

Based on the provided information, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • Intended Use: The intended use clearly describes a device for physical rehabilitation through functional electrical stimulation and cycling. This involves applying electrical stimulation to muscles to induce contractions and facilitate movement, which is a therapeutic intervention, not a diagnostic test performed on in vitro samples.
  • Device Description: The device components are all related to a physical therapy system (cycle ergometer, stimulators, electrodes, cables, etc.). There are no components or descriptions related to analyzing biological samples (blood, urine, tissue, etc.) outside of the body.
  • Lack of IVD Characteristics: The description does not mention any of the typical characteristics of an IVD, such as:
    • Analyzing biological specimens.
    • Detecting or measuring substances in biological specimens.
    • Providing information for diagnosis, monitoring, or screening of diseases or conditions based on in vitro analysis.

The device is a therapeutic and rehabilitative device, not a diagnostic one.

N/A

Intended Use / Indications for Use

The RT300 (adult and pediatric version) are intended for general rehabilitation for:

  • a. Relaxation of muscle spasms
  • b. Prevention or retardation of disuse atrophy
  • c. Increasing local blood circulation
  • d. Maintaining or increasing range of motion
    The RT300 is for prescription use only.
    The RT300 pediatric version is intended for population ages 4 to 12 years.
    The RT300 is intended for use with a surface electrical stimulation garment for population ages 12 and above.

Product codes (comma separated list FDA assigned to the subject device)

GZI

Device Description

The RT300 is a Functional Electrical Stimulation (FES) cycle ergometer which is composed of:

  • a motorized leg cycle ergometer (RTI part number SA100047 for adults and – SA100044 for children)
  • an optional motorized arm crank (RTI part number PP102663)
  • an FES controller with built in 6 channel stimulator (RTI part number SA100090)
  • up to 5 additional wireless single channel stimulators (RTI part number 4 FA106897)
  • a leg and optional arm stimulation cable (either bilateral or unilateral) which connects the controller / stimulator to cutaneous electrodes
  • cutaneous electrodes (up to 22 electrodes for up to 11 stimulation channels)
  • an interface to a remote database for the storage and retrieval of therapy settings and the storage of therapy session logs
  • an interface to a pulse oximeter for the display and recording of pulse and SpO2 levels and provision of alarming based on the data
  • a stimwear garment incorporating electrodes for lower extremity cycling in population ages 12 and above (RTI part number FA105486)
    This system allows a person with impaired upper or lower extremity movement to undertake cycle ergometry both actively (utilizing FES evoked upper or lower extremity muscle contractions) and passively (utilizing power developed by the ergometer's motor).

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Upper or lower extremity, erector spinae and abdominal muscle groups.

Indicated Patient Age Range

The RT300 pediatric version is intended for population ages 4 to 12 years. The RT300 is intended for use with a surface electrical stimulation garment for population ages 12 and above.

Intended User / Care Setting

Not Found

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Non clinical testing to determine equivalence has been primarily composed of the following tests:

  • Review of user documentation for predicate device: Ensure that equivalent functionality is specified and implemented in the new device.
  • Review of 510(k) submission for predicate device: Confirm technical specifications for completion of predicate details in comparison tables
  • Output characteristic measurement of new device: Confirm technical specifications for completion of new device details in comparison tables
  • Conduct of system testing: Conduct system testing to verify performance to specification.
    Clinical Test: Testing the RT50 stimulation: The RT300 with 5 additional RT50 stimulation channels was validated with five able bodied individuals. The RT50 in standalone mode was validated with five able bodied individuals.
    Clinical Test: Testing additional muscle groups: The RT50 clinical testing included testing of abdominal and erector spinae stimulation.
    Clinical Test: Testing the Stimwear garment: The RT300 with the Stimwear garment was validated on one able bodied individual.

Key results:
The RT300 has the same intended use as the predicate device. The RT300 has the same output characteristics as the predicate device. The different technological characteristics do not raise new questions of safety and effectiveness.
The safety and effectiveness of providing up to 5 additional channels of electrical stimulation utilizing the RT50 to the upper and lower extremities, erector spinae and abdominal muscle groups has been demonstrated during validation testing. The safety and effectiveness of utilizing Stimwear and carbon electrodes has been demonstrated during validation testing.
In conclusion, RTI's clinical and non-clinical testing has demonstrated that the RT300 is as safe and effective as the predicate devices.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K072398, K841112, K073237

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 882.5810 External functional neuromuscular stimulator.

(a)
Identification. An external functional neuromuscular stimulator is an electrical stimulator that uses external electrodes for stimulating muscles in the leg and ankle of partially paralyzed patients (e.g., after stroke) to provide flexion of the foot and thus improve the patient's gait.(b)
Classification. Class II (performance standards).

0

K690750

AUG 0 5 2009

510(k) Summary

Note: Changes from K072398 RT300 Summary of Safety and Effectiveness are shown in italics.

RT300 Summary of Safety and Effectiveness

(1) Submitter's name, address, telephone number, a contact person, and the date the summary was prepared:

Andrew Barriskill Restorative Therapies Inc 907 South Lakewood Ave Baltimore, MD 21224

Phone: 800 609-9166

Prepared on June 22nd 2009.

(2) Name of the device, including the trade or proprietary name if applicable, the common or usual name, and the classification name:

Proprietary name: RT300 (FES cycle ergometer) Common name: Powered Muscle Stimulator Classification name: External functional neuromuscular stimulator

(3) Identification of the legally marketed device to which the submitter claims equivalence:

RESTORATIVE THERAPIES, INC. product: "RT300", K072398, a class 2 device

THERAPEUTIC ALLIANCES, INC. product: "ERGYS", K841112, a class 2 device. Relates to Stimwear only.

HASOMED GMBH product: "REHASTIM & REHAMOVE", K073237, a class 2 device. Relates to stand alone stimulator use only.

(4) A description of the device that is the subject of the premarket notification submission.

The RT300 is a Functional Electrical Stimulation (FES) cycle ergometer which is composed of:

  • a motorized leg cycle ergometer (RTI part number SA100047 for adults and ー SA100044 for children)
  • an optional motorized arm crank (RTI part number PP102663) 2

1

  • ന an FES controller with built in 6 channel stimulator (RTI part number SA100090)
  • up to 5 additional wireless single channel stimulators (RTI part number 4 FA106897)
  • a leg and optional arm stimulation cable (either bilateral or unilateral) which ട് connects the controller / stimulator to cutaneous electrodes
  • cutaneous electrodes (up to 22 electrodes for up to 11 stimulation ଚି channels)
  • an interface to a remote database for the storage and retrieval of therapy 7 settings and the storage of therapy session logs
  • an interface to a pulse oximeter for the display and recording of pulse and ക SpO2 levels and provision of alarming based on the data
  • ക a stimwear garment incorporating electrodes for lower extremity cycling in population ages 12 and above (RTI part number FA105486)

This system allows a person with impaired upper or lower extremity movement to undertake cvcle ergometry both actively (utilizing FES evoked upper or lower extremity muscle contractions) and passively (utilizing power developed by the ergometer's motor).

(5) Statement of the intended use of the device:

The RT300 and pediatric versions are intended for general rehabilitation for:

    1. Relaxation of muscle spasms
    1. Prevention or retardation of disuse atrophy
    1. Increasing local blood circulation
    1. Maintaining or increasing range of motion

The RT300 is for prescription use only.

The RT300 pediatric version is intended for population ages 4 to 12 years. The RT300 is intended for use with a surface electrical stimulation garment for population ages 12 and above.

(6) Technological Characteristics

The function of the RT300 is the same as the predicate devices however there are certain technological similarities and differences as described below:

TechnologyRT300Predicate K072398Predicate K841112Predicate K073237
Power source (energy used)Mains power and rechargeable battery for RT50 stimulatorsMains powerN/AN/A
ControllerBased on Pocket PCBased on Pocket PCN/AN/A
TechnologyRT300Predicate
K072398Predicate
K841112Predicate
K073237
running custom
software.running
custom
software.
Stimulator
(energy
delivered)Built in AC
mains powered
0-140mA 6
channel charge
balanced
stimulator.Built in AC
mains
powered 0-
140mA 6
channel
charge
balanced
stimulator.N/AN/A
Additional
stimulation
channelsUp to 5
additional
wireless
battery
powered
stimulation
channels
delivering 0-
140mA charge
balanced
stimulation.Additional
stimulation
channels not
available.N/AN/A
Stand alone
stimulation
modeWireless
battery
powered
stimulation
channels may
be used in
stand alone
mode with out
the cycle
ergometer.Stand alone
mode not
available.N/AStimulator
"can be used
as a portable
or stationary
device for
training and
rehabilitation
applications"
Stimwear
garmentStimwear
garment
incorporating
electrodes
available for
low extremity
cycling, ages
12 and above.Stimwear
garment not
available.Available
stimwear
garment
incorporating
electrodes.N/A
Muscles
available for
stimulationQuadriceps,
hamstrings,
gluteals,
gastroc, anteriorQuadriceps,
hamstrings,
gluteals,
gastrocN/AN/A
TechnologyRT300Predicate
K072398Predicate
K841112Predicate
K073237
tibialis, shoulder,
biceps, triceps,
anterior,
posterior and
middle deltoid,
wrist, grasp,
abdominals,
erector spinae.anterior
tibialis,
shoulder,
biceps,
triceps,
anterior,
posterior and
middle
deltoid, wrist,
graspN/AN/A
FlywheelUses leg / arm
crank motor to
create flywheel
effect with
reduced weight
and space.Uses leg /
arm crank
motor to
create
flywheel
effect with
reduced
weight and
space.N/AN/A
SeatingAllows user to
remain in their
own seating, e.g
wheelchair
eliminating the
need for
transfer.Allows user
to remain in
their own
seating, e.g
wheelchair
eliminating
the need for
transfer.N/AN/A
Passive cyclingUtilizes motor to
provide
assistance
during passive
cycling.Utilizes
motor to
provide
assistance
during
passive
cycling.N/AN/A
Database
interfaceUtilizes
database
interface for
storage and
retrieval of
patient therapy
settings and
storage of
session logs.Utilizes
database
interface for
storage and
retrieval of
patient
therapy
settings and
storage of
session logs.N/AN/A
TechnologyRT300Predicate
K072398Predicate
K841112Predicate
K073237
Motorized arm
crankAllows active /
passive arm
cycling with FESAllows active
/ passive
arm cycling
with FESN/AN/A
Pulse oximeter
interfaceUtilize pulse and
SpO2 data for
display,
recording and
alarmingUtilize pulse
and SpO2
data for
display,
recording
and alarmingN/AN/A
Bilateral or
Unilateral
stimulationUses bilateral or
unilateral
stimulation
cables.Uses
bilateral or
unilateral
stimulation
cables.N/AN/A

2

. . . . .

:

:

3

and the comments of the comments of the comments of the comments of the contraction of the contribution of the contribution of the contribution of the contribution of the fir

and the control of the county of

4

Table 1 Device technology comparison

(b) Performance data

Non clinical testing to determine equivalence has been primarily composed of the following tests:

.

Test or procedureDescription
Review of user documentation for
predicate deviceEnsure that equivalent functionality is
specified and implemented in the new
device.
Review of 510(k) submission for
predicate deviceConfirm technical specifications for
completion of predicate details in
comparison tables
Output characteristic measurement of
new deviceConfirm technical specifications for
completion of new device details in
comparison tables
Conduct of system testingConduct system testing to verify
performance to specification.
Clinical TestDescription
Testing the RT50 stimulationThe RT300 with 5 additional RT50
stimulation channels was validated with
five able bodied individuals.
The RT50 in standalone mode was
validated with five able bodied
individuals.

5

Clinical TestDescription
Testing additional muscle groups.The RT50 clinical testing included
testing of abdominal and erector spinae
stimulation .
Testing the Stimwear garmentThe RT300 with the Stimwear garment
was validated on one able bodied
individual.

RTI concludes that:

The RT300 has the same intended use as the predicate device. The RT300 has the same output characteristics as the predicate device. The different technological characteristics do not raise new questions of safety and effectiveness.

The safety and effectiveness of providing up to 5 additional channels of electrical stimulation utilizing the RT50 to the upper and lower extremities, erector spinae and abdominal muscle groups has been demonstrated during validation testing. The safety and effectiveness of utilizing Stimwear and carbon electrodes has been demonstrated during validation testing.

In conclusion, RTI's clinical and non-clinical testing has demonstrated that the RT300 is as safe and effective as the predicate devices.

6

Image /page/6/Picture/0 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES . USA" arranged around the perimeter. Inside the circle is a stylized eagle emblem, depicted with three thick, curved lines forming the body and wings.

DEPARTMENT OF HEALTH & HUMAN SERVICES

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

Restorative Therapies, Inc % Andrew Barriskill CEO 907 South Lakewood Ave Baltimore, MD 21224

AUG 0 5 2009

Re: K090750

Trade Name: RT300 Functional Electrical Stimulation (FES) Cycle Ergometer Regulation Number: 21 CFR §882.5810 Regulation Name: External functional neuromuscular stimulator Regulatory Class: Class II Product Code: GZI Dated: July 15, 2009 Received: July 16, 2009

Dear Mr. Barriskill:

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.

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 of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in 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.

7

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 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/cdrh/mdr/ 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 Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (240) 276-3150 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.

Sincerely vours,

Rua U. Thm, mo
Malvina B. Eydelman, M.D.

Director Division of Ophthalmic, Neurological and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

8

Indications for Use

510(k) Number: K090750

Device Name: RT300 Functional Electrical Stimulation (FES) cycle ergometer

Indications For Use:

Prescription Use

The RT300 (adult and pediatric version) are intended for general rehabilitation for:

  • a. Relaxation of muscle spasms
  • b. Prevention or retardation of disuse atrophy
  • c. Increasing local blood circulation
  • d. Maintaining or increasing range of motion

The RT300 is for prescription use only.

X

The RT300 pediatric version is intended for population ages 4 to 12 years.

The RT300 is intended for use with a surface electrical stimulation garment for population ages 12 and above. .

(Part 21 CFR 801 Subpart D) (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)
(Division Sign-Off)
Division of Ophthalmic, Neurological and Ear, Nose and Throat DevicesPage 1 of 1
510(k) NumberK090750

AND/OR

Over-The-Counter Use