K Number
K181102
Device Name
ThermaCare Quick Therapy TENS
Manufacturer
Date Cleared
2018-09-15

(142 days)

Product Code
Regulation Number
882.5890
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdparty
Intended Use
The device is intended to be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, upper extremities(arm) and lower extremities (leg) due to strain from exercise or normal household work activities. And to be used for the symptomatic relief and management of chronic, intractable pain and relief of pain associated with arthritis.
Device Description
The ThermaCare® Quick Therapy TENS device is a wireless, two channels wearable electrotherapy device that is designed to alleviate chronic muscle and joint pain on multiple body locations. It delivers TENS (Transcutaneous Electrical Nerve Stimulation) technology through the simple, convenient use of the dedicated APP (iOS or Android) or remote control. Reusable, self-adhesive pads allow for discreet and convenient placement on multiple pain locations on the body. The ThermaCare® Quick Therapy TENS contains 23 TENS programs. It is designed to be used at home, by adults of all genders. The ThermaCare® Quick Therapy TENS device contains one main TENS unit which is rechargeable and one remote control which is powered by 2 AAA batteries. The pads with attached TENS unit can then be applied to intact skin at the desired location for pain relief. Control of the ThermaCare® Quick Therapy TENS device is completed through the available TENS APP (iOS or Android)or remote control. The communication is done via Bluetooth Low Energy. The device will be packaged with an Instruction Manual which provides details on setting up the device for use, installing of the App, setting and controlling therapy programs, and troubleshooting. The ThermaCare® Quick Therapy TENS consists of the following elements: • Main device: generates the TENS pulses; connects to the electrode; controlled by APP on smart phone and remote control. • Electrodes: Self-adhesive re-usable hydrogel electrodes connects to the device. • APP on mobile device: The APP controls the functions of the main device via a Bluetooth (4.0) Low Energy connection between the mobile device and the main device. • Remote control: The remote controls the functions of the main device via a Bluetooth (4.0) Low Energy connection between the remote control and the main device. · Adapter (optional): for charging the battery unit via a micro-USB socket which connected with the adapter, and insert the adapter to the supply mains.
More Information

Not Found

No
The summary describes a standard TENS device with pre-programmed settings controlled via an app or remote. There is no mention of adaptive algorithms, learning from user input, or any other characteristics indicative of AI/ML. The software is described as "Moderate" level of concern, which is typical for devices with fixed functionality.

Yes
The device is described as an electrotherapy device intended for "temporary relief of pain associated with sore and aching muscles" and "symptomatic relief and management of chronic, intractable pain and relief of pain associated with arthritis", which are therapeutic indications.

No

The device is described as an electrotherapy device (TENS) intended for the relief and management of pain, not for the diagnosis of a condition.

No

The device description explicitly states it is a "wireless, two channels wearable electrotherapy device" and includes physical components like a "main TENS unit," "electrodes," and a "remote control." While it utilizes software (APP) for control, it is not solely software.

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

Here's why:

  • Intended Use: The intended use clearly states the device is for the temporary relief and management of pain associated with muscles and joints. This is a therapeutic purpose, not a diagnostic one.
  • Device Description: The device description details a TENS (Transcutaneous Electrical Nerve Stimulation) device that delivers electrical pulses to the body for pain relief. This is a physical therapy modality, not a method for analyzing biological samples.
  • Lack of IVD Characteristics: The description does not mention any components or processes related to collecting, analyzing, or interpreting biological samples (like blood, urine, tissue, etc.) to diagnose a condition or disease.
  • Performance Studies: The performance studies focus on biocompatibility, electrical safety, software validation, and output waveform testing, all of which are relevant to a therapeutic electrical stimulation device, not an IVD.

In summary, the device's function is to provide pain relief through electrical stimulation applied to the body, which falls under the category of a therapeutic medical device, not an in vitro diagnostic device.

N/A

Intended Use / Indications for Use

The device is intended to be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, upper extremities(arm) and lower extremities (leg) due to strain from exercise or normal household work activities. And to be used for the symptomatic relief and management of chronic, intractable pain and relief of pain associated with arthritis.

Product codes

NUH, NYN

Device Description

The ThermaCare® Quick Therapy TENS device is a wireless, two channels wearable electrotherapy device that is designed to alleviate chronic muscle and joint pain on multiple body locations. It delivers TENS (Transcutaneous Electrical Nerve Stimulation) technology through the simple, convenient use of the dedicated APP (iOS or Android) or remote control. Reusable, self-adhesive pads allow for discreet and convenient placement on multiple pain locations on the body. The ThermaCare® Quick Therapy TENS contains 23 TENS programs. It is designed to be used at home, by adults of all genders.

The ThermaCare® Quick Therapy TENS device contains one main TENS unit which is rechargeable and one remote control which is powered by 2 AAA batteries. The pads with attached TENS unit can then be applied to intact skin at the desired location for pain relief. Control of the ThermaCare® Quick Therapy TENS device is completed through the available TENS APP (iOS or Android)or remote control. The communication is done via Bluetooth Low Energy.

The device will be packaged with an Instruction Manual which provides details on setting up the device for use, installing of the App, setting and controlling therapy programs, and troubleshooting. The ThermaCare® Quick Therapy TENS consists of the following elements:

  • Main device: generates the TENS pulses; connects to the electrode; controlled by APP on smart phone and remote control.
  • Electrodes: Self-adhesive re-usable hydrogel electrodes connects to the device.
  • APP on mobile device: The APP controls the functions of the main device via a Bluetooth (4.0) Low Energy connection between the mobile device and the main device.
  • Remote control: The remote controls the functions of the main device via a Bluetooth (4.0) Low Energy connection between the remote control and the main device.
  • Adapter (optional): for charging the battery unit via a micro-USB socket which connected with the adapter, and insert the adapter to the supply mains.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

shoulder, waist, back, upper extremities(arm) and lower extremities (leg)

Indicated Patient Age Range

adults

Intended User / Care Setting

Home use, by adults of all genders.

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)

Performance data provided in support of substantial equivalence determination include:

  • Biocompatibility testing conducted in accordance with ISO 10993-1, including Cytotoxicity, Sensitization, and Irritation tests.
  • Electrical safety and electromagnetic compatibility (EMC) testing in compliance with IEC 60601-1, IEC60601-1-11, IEC 60601-2-10, and FCC part 15 RADIO FREQUENCY DEVICES, Subpart C—Intentional Radiators.
  • Software Verification and Validation Testing based on FDA's Guidance for Industry and FDA Staff, "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices." The software was considered a "Moderate" level of concern.
  • Output waveform Testing: For each program, oscilloscope tracing diagrams describing the electrical output waveform were provided to verify the output specifications of the device according to IEC 60601-2-10.

Key results: The new devices are evaluated and passed the testing according to IEC 60601-1 and IEC 60601-2-10. Technological differences (number of output modes, number of output channels, timer range, weight and dimension, Max Output Voltage/Current, Pulse Duration, Maximum Phase Charge, Maximum Current Density and Maximum Average Power Density) do not pose any new questions of safety and effectiveness.

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.

K173462

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

§ 882.5890 Transcutaneous electrical nerve stimulator for pain relief.

(a)
Identification. A transcutaneous electrical nerve stimulator for pain relief is a device used to apply an electrical current to electrodes on a patient's skin to treat pain.(b)
Classification. Class II (performance standards).

0

Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA logo on the right. The FDA logo features the letters "FDA" in a blue square, followed by the words "U.S. FOOD & DRUG ADMINISTRATION" in blue text.

September 15, 2018

Pfizer Inc. % Siping Yuan R.A. Specialist Shenzhen Dongdixin Technology Co., Ltd No. 3 Building, Xilibaimang Xusheng Industrial Estate Nanshan, Shenzhen, Cn 518108

Re: K181102

Trade/Device Name: ThermaCare Quick Therapy TENS, TC001 Regulation Number: 21 CFR 882.5890 Regulation Name: Transcutaneous Electrical Nerve Stimulator For Pain Relief Regulatory Class: Class II Product Code: NUH, NYN Dated: April 20, 2018 Received: April 26, 2018

Dear Siping Yuan:

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 mav, 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 of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820);

1

and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

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 comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). 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 (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).

Sincerely,

Pamela D. Scott -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

2

Indications for Use

510(k) Number (if known) K181102

Device Name ThermaCare® Quick Therapy TENS Model: TC001

Indications for Use (Describe)

The device is intended to be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, upper extremities(arm) and lower extremities (leg) due to strain from exercise or normal household work activities. And to be used for the symptomatic relief and management of chronic, intractable pain and relief of pain associated with arthritis.

Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D) Over-The-Counter Use (21 CFR 801 Subpart C)

CONTINUE ON A SEPARATE PAGE IF NEEDED.

This section applies only to requirements of the Paperwork Reduction Act of 1995.

DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.

The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:

Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov

"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."

3

005_510 (k) Summary Version: 1.1

510(k) SUMMARY

as required by section 21 CFR 807.92

ThermaCare® Quick Therapy TENS

Date of Submission:04/23/2018
Submitter/510(k)
Owner's Name:Pfizer Inc.
Address:235 East 42nd Street, New York, New York 10017,
USA
Contact Person:Nicola Romano
E-mail:nicola.romano@pfizer.com
Tel:973-660-5858
Correspondent's Name:Shenzhen Dongdixin Technology Co., Ltd.
Address:No.3 Building Xilibaimang Xusheng Industrial Estate,
Nanshan, Shenzhen, CHINA 518108
Correspondent
Contact:Siping Yuan
E-mail:ra@dundex.com
Tel:+86(755) 27652471
FAX:+86(755) 27652674

4

1. Proposed Device:

Device Name:ThermaCare® Quick Therapy TENS
Model:TC001
Device classification Name:Stimulator, Nerve, Transcutaneous, Over-The-Counter
Regulation Description:Transcutaneous electrical nerve stimulator for pain relief
Regulation Medical Specialty:Neurology
Review Panel:Neurology
Regulation Number:882.5890
Product Code:NUH
Device Class:II
Device classification Name:Stimulator, Electrical, Transcutaneous, For Arthritis
Regulation Description:Transcutaneous electrical nerve stimulator for pain relief
Regulation Medical Specialty:Neurology
Medical Specialty:Neurology
Review Panel:Neurology
Regulation Number:882.5890
Product Code:NYN
Device Class:II

2. Predicate Device:

Legally Marketed Device:Wireless Pain Relieve Device
LT5018C
510(k) Number:K173462
Manufacturer:Shenzhen Dondixin Technology Co., Ltd.

3. Description of Proposed Device:

The ThermaCare® Quick Therapy TENS device is a wireless, two channels wearable electrotherapy device that is designed to alleviate chronic muscle and joint pain on multiple body locations. It delivers TENS (Transcutaneous Electrical Nerve Stimulation) technology through the simple, convenient use of the dedicated APP (iOS or Android) or remote control. Reusable, self-adhesive pads allow for discreet and convenient placement on multiple pain locations on the body. The ThermaCare® Quick Therapy TENS contains 23 TENS programs. It is designed to be used at home, by adults of all genders.

The ThermaCare® Quick Therapy TENS device contains one main TENS unit which is rechargeable and one remote control which is powered by 2 AAA batteries. The pads with attached TENS unit can then be applied to intact skin at the desired location for pain relief. Control of the ThermaCare® Quick Therapy TENS device is completed through the available TENS APP (iOS or Android)or remote control. The

5

communication is done via Bluetooth Low Energy.

The device will be packaged with an Instruction Manual which provides details on setting up the device for use, installing of the App, setting and controlling therapy programs, and troubleshooting. The ThermaCare® Quick Therapy TENS consists of the following elements:

• Main device: generates the TENS pulses; connects to the electrode; controlled by APP on smart phone and remote control.

• Electrodes: Self-adhesive re-usable hydrogel electrodes connects to the device.

• APP on mobile device: The APP controls the functions of the main device via a Bluetooth (4.0) Low Energy connection between the mobile device and the main device.

• Remote control: The remote controls the functions of the main device via a Bluetooth (4.0) Low Energy connection between the remote control and the main device.

· Adapter (optional): for charging the battery unit via a micro-USB socket which connected with the adapter, and insert the adapter to the supply mains.

4. Proposed Device Intended for Use Statement:

Device Name: ThermaCare® Quick Therapy TENS, Model: TC001

Indications for Use:

The device is intended to be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist, back, upper extremities(arm) and lower extremities (leg) due to strain from exercise or normal household work activities. And to be used for the symptomatic relief and management of chronic, intractable pain and relief of pain associated with arthritis.

6

5. Technological Characteristics and Substantial Equivalence

Both the TC001 and Predicate Device utilize the application of electrical current through electrodes placed on the impulses are generated by the device and delivered through electrodes on the skin in direct proximity to the (painful) muscles to be stimulated. Basic technological characteristics, new device vs. Predicate device.

New devicePredicate deviceS.E. Discussion
1510K#To be assignedK173462N/A
2Device Name and
ModelThermaCare® Quick Therapy TENS
Mode: TC001Wireless Pain Relieve Device
Mode: LT5018CN/A
3ApplicantPfizer Inc.Shenzhen Dongdixin Technology Co., LtdN/A
4ManufacturerShenzhen Dongdixin Technology Co., LtdShenzhen Dongdixin Technology Co., LtdSame
5Intended for useTENS: The device is designed to be used
for temporary relief of pain associated
with sore and aching muscles in the
shoulder, waist, back, upper extremities
(arm) and lower extremities (leg) due to
strain from exercise or normal household
work activities. And to be used for the
symptomatic relief and management of
chronic, intractable pain and relief of pain
associated with arthritis.TENS: The device is designed to be used
for temporary relief of pain associated
with sore and aching muscles in the
shoulder, waist, back, neck, upper
extremities (arm) and lower extremities
(leg) due to strain from exercise or
normal household work activities. And
to be used for the symptomatic relief
and management of chronic, intractable
pain and relief of pain associated with
arthritis.
EMS: The device is designed to be used
for stimulate healthy muscles in order to
improve and facilitate muscle
performance.Applicant is not pursuing
EMS use statement for the
new device.
6Power SourceDC 3.7V Li-ion Battery(main device)
DC 3.0V, 2 x AAA Batteries (Remote
control)DC 3.7V Li-ion Battery(main device)
DC 3.0V, 2 x AAA Batteries (Remote
control)Same
-Method of
LineN/AN/ASame
current isolation
- Patient Leakage
Current (μΑ)
-Normal condition
-Single fault
conditiond.c:0 uA. a.c.:29 uA max
d.c:0 uA. a.c.:69 uA max0uA
2.0uADifferent, TC 001 have been
evaluated and passed the test
according to the requirement
of IEC 60601-1.
7Average DC current
through electrodes
when device is on but
no pulses are being
applied (μΑ)00Same
8Number of Output
Modes1 (TENS)2 (TENS/EMS(including MASSAGE))Different, TC001 only has
TENS mode and TC001
remove indications for use of
EMS mode accordingly.
9Number of Output Channels
Synchronous or
Alternating?AlternatingN/ADifferent, TC001 has two
channels and each channel
outputs have been evaluated
and passed the test according
to the requirement of IEC
60601-2-10.
Method of Channel
IsolationBy Electrical Circuit and SoftwareN/ADifferent, TC001 has two
channels and have been
evaluated and passed the test
according to the requirement
of IEC 60601-1.
10Regulated Current or
Regulated Voltage?Current controlCurrent controlSame
11Software/Firmware/
Micro processor
Control?YesYesSame
12Automatic Overload
TripYesYesSame
13Automatic No Load
contact TripYesYesSame
14Automatic Shut offYesYesSame
15User Override
Control?Yes
Power [on/off] button on the device
Power [on/off] button on the remote
control
[Stop session] button in the APP softwareYes
Power on/off button on the device
Power on/off on the remote control
Power on/off in the APP softwareSame function
16Indicator Display:
On/Off Status?YesYesSame
Low Battery?YesYesSame
Voltage/
Current
Level?YesYesSame
17Timer
Range
(minutes)5-30 minutes30 minutesDifferent, new device have
been evaluated and passed
the test according to the
requirement of IEC
60601-2-10.
User can set the treatment
time according their needs.
18Weight (grams.)32grams (Main device)
55 grams (Remote control without
batteries)36grams (Main device)
65 grams (Remote control)Different, the new device
have been evaluated and
19Dimensions
(cm.)
H*W * L80.5(L)x45(W)x13.5(H)mm (Main
device)
127(L)x48.6(W)x24.4(H)mm (Remote
control)360(L)x59(W)x11.5(H)mm
(Main
device)
115(L)x53(W)x25(H)mm
(Remote
control)passed the testing according
to the requirement of IEC
60601-1.
20Housing Materials &ABSABSSame
Construction
21Compliance with 21
CFR 898YesYesSame
22Compliance
withIEC 60601-1:2005+A1:2012IEC 60601-1:2005+A1:2012Same
Voluntary Standards?IEC 60601-1-2:2014IEC 60601-1-2:2014
IEC 60601-2-10: 2012IEC 60601-2-10: 2012
IEC60601-1-11: 2015IEC60601-1-11: 2015
ISO 10993-1:2009ISO 10993-1:2009
ISO 10993-5:2009ISO 10993-5:2009
ISO 10993-10:2010ISO 10993-10:2010
Table 2: Output Specification TENS mode
New devicePredicate deviceS.E. Discussion
1510K#To be assignedK173462N/A
2Device Name
orThermaCare® Quick Therapy TENSWireless Pain Relieve DeviceN / A
Program NameMode:TC001Mode:LT5018C
4WaveformBiphasicBiphasicSame
5ShapeRectangularRectangularSame
6Max Output Voltage (V) ±20%
7500Ω30.431Similar, the new device have
82kΩ7066been evaluated and passed
910kΩ7066the test according
to the
requirement
IEC
of
60601-2-10.
10Max Output Current (mA) ±20%
11500Ω
2kΩ60.862Similar, the new device have
been evaluated and passed
12
1335
733
6.6the test according to the
10kΩrequirement of
IEC60601-2-10
14Pulse
Duration100~200us150~250usSimilar, the new device have
(µsec)been evaluated and passed
the test according to the
of
requirement
IEC60601-2-10
15Frequency (Hz)2~100Hz2~100HzSame
16Maximum Phase24.3231Similar, the new device have
Charge (uC) 500Ωbeen evaluated and passed
17Maximum Current0.295mA/cm20.48mA/cm2the test according to the
Density 500Ωrequirement of IEC
18Maximum Average1.221.260601-2-10.
Current
(average
absolute
value),
mA, 500Ω
19Maximum Average
Power Density,
(mW/cm²),500Ω1.82.88

Table 1: Substantial Equivalence Comparison Table

7

8

9

10

11

Discussion:

The number of output modes, number of output channels, timer range, weight and dimension of the new device are different from the predicate devices, but the new devices are evaluated and passed the testing according to IEC 60601-1 and IEC 60601-2-10, this difference does not pose any new questions of safety.

The Max Output Voltage/Current, Pulse Duration, Maximum Phase Charge, Maximum Current Density and Maximum Average Power Density are similar with the predicate devices, but the new devices are evaluated and passed the testing according to IEC 60601-2-10, this difference doesn't pose any new questions of safety and effectiveness.

Performance Data: 6.

The following performance data are provided in support of the substantial equivalence determination:

6.1 Biocompatibility testing

The biocompatibility evaluation for the TC001 was conducted in accordance with the International Standard ISO 10993-1 "Biological Evaluation of Medical Devices – Part 1: Evaluation and Testing Within a Risk Management Process". As dictated by the application and duration of contact with the intact skin, the testing included the following tests:

  • Cytotoxicity
  • Sensitization
  • Irritation

6.2 Electrical safety and electromagnetic compatibility (EMC)

Electrical safety and EMC testing were conducted on the TC001. The system complies with the IEC 60601-1, IEC60601-1-11 and IEC 60601-2-10 standards for safety and the IEC 60601-1-2 standard for EMC.

For FCC part 15 RADIO FREQUENCY DEVICES, Subpart C—Intentional Radiators.

6.3 Software Verification and Validation Testing

Main device, Remote control and APP software verification and validation testing were conducted and documentation was provided as recommended by FDA's Guidance for Industry and FDA Staff, "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices." The software for this device was considered as a "Moderate" level of concern.

6.4 Output waveform Testing

For each program, oscilloscope tracing diagrams describing the electrical output waveform was provided to verify the output specifications of the device according to IEC 60601-2-10.

12

7. Conclusions

The intended use and basic technological characteristics of the ThermaCare® Quick Therapy TENS are equivalent with those of the Predicate device K173462. Any technological differences do not raise new questions regarding safety and effectiveness.