Quell is an advanced, wearable technology that uses prescription strength nerve stimulation to provide relief from chronic pain. It is 100% drug free, doctor recommended and FDA cleared for use during the day while active and at night while sleeping.
|Digital Pins Color||N/A|
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Product can be returned if the following occurred:
- Product delivered is not in accordance to the order.
- Returns are accepted on damaged products.
- Product can be returned after a week of acquisition by reporting to [email protected]
- Warranty would depend on supplier’s provision.
- A week to thirty days shipment dependent on supplier.
- 100% drug free
- FDA cleared for 24/7 use
- Wearable, lightweight, slim design
- Doctor recommended neurotechnology
- Patented OptiTherapy® (automatically adjusts dose to optimize pain relief)
- Quell App for iOS and Android allows you to calibrate your Quell, start and stop therapy, and adjust the intensity of therapy
- The Quell App will also allow you to customize therapy and track therapy, sleep, activity and pain
- The new Quell band features a durable fabric and robust velcro closure designed for longer wear. The rounded end prevents overlap of the velcro onto your clothing and a fully enclosed pocket keeps the Quell device secure in the band
|Waveform||Biphasic with alternating leading phase, symmetrical, rectangular|
|Regulated Current or Voltage||Current|
|Net Charge per Pulse||0 ± 1 μC into 500Ω Load|
|Maximum Output Voltage (±10%)||100V|
|Maximum Output Current (<1KΩ load) (±10%)||100 mA|
|Pulse Duration (±4%)||200 - 400 μsec|
|Pulse Frequency (±4%)||60-100 Hz, randomly varying|
|Maximum Phase Charge||20 μC|
|Maximum Current Density||0.71 mA/cm² into 500Ω load|
|Maximum Average Current||4 mA into 500Ω load|
|Maximum Average Power Density||7 mW/cm² into 500Ω load|
|No Load||Device not connected to patient|
|Insufficient Charge||Delivered charge below target|
|Over Load||Delivered charge above target|
|Electrode Peeling||Electrode dislodging from skin|
|Start Therapy||Click button once|
|Stop Therapy||Click button 4 times|
|Manual Intensity Increase/Decrease||Increase +1.25% per second, decrease -5%|
|Habituation Compensation||Adaptive stepwise increase in intensity during session|
|Type||Self-adhering, single-patient use, multiple applications|
|Materials||Maylar substrate, silver electrode pads|
|Number of Electrodes||2, outer electrode area 28 cm², inner electrode area 33 cm²|
|Connector||Medical snap (male)|
|Dimensions||0.2 cm x 5.3 cm x 28.3 cm (exterior)|
|Source||Permanent rechargeable battery|
|Battery Type||Rechargeable 3.7V Lithium-Ion battery|
|Battery Life||400 Charge Cycles|
|Charging Source||AC line adapter|
|Line Current Isolation||Patient disconnected when charging|
|Patient Leakage Current, DC|
|Patient Leakage Current, Enclosure|
|Dimensions||98 mm x 74 mm x 11 mm|
|Weight (without straps)||62g|
|Operating Temperature Range||-5° C to 40° C|
|Atmospheric Pressure Range||70 kPa to 106 kPa|
|Relative Humidity Range||15% to 93%|
|Transport and Storage Temperature Range||-25° C to 70° C|
|Atmospheric Pressure Range||70 kPa to 106 kPa|
|Relative Humidity Range||10% to 93%|
Guidance Documents & Standards
|FDA||Draft Guidance for Industry and Staff: Class II Special Control Guidance Document: Transcutaneous Electrical Nerve Stimulator for Pain Relief (April 5, 2010)|
|IEC||IEC 60601-1, IEC 60601-1-2, IEC 60601-1-6, IEC 60601-1-11, IEC 62304|
|The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by NeuroMetrix, Inc. is under license.|
|Communication between the Quell device and the Smartphone is via Bluetooth.|
|While all sensitive data transmission is encrypted, Bluetooth functionality can be turned off for increased privacy. If Bluetooth is disabled, then the Quell Relief App will not function, but all other functions of the Quell device will operate normally.|
|To turn off Bluetooth:|
|1. Plug the Quell device into the charger/wall outlet,|
|2. Click and hold the button on the Quell device for approximately 10 seconds until the one orange and one white LED light up, then release the button.|
|3. The Bluetooth module is now disabled.|
|To reactivate Bluetooth functionality, repeat the above steps. All six LED’s should be lit.|
|Bluetooth Module||Bluegiga BLE 113 Bluetooth® Module with Bluetooth® 4.0 low energy radio|
|Transmit Power||+0 dBm|
|Receiver Sensitivity||-93 dBm|
|FCC Rules||Part 15C|
|Frequency Range||2402.0 - 2480.0|
Quell App requires iOS version 8.0 or later or Android version 4.4 or later
|Smartphone must support Bluetooth LE|
Do you need to have a cell phone to use Quell?
Answer: You do not. Quell has a unit that is rechargeable. It is manually turned on and off as needed.
Can a heart patient wear Quell?
Answer: Absolutely! This is very much like a tens unit. But of course if you have any concerns, check with your doctor.
Does it stay in place on your calf ?
Answer: Kind of... After a month of use, the pouch holding the device got all warped and stretched so it slides around. The sticky gel pad is what keeps it on. It's really secure.
What is the dimensions for my calf ?
Answer: The band is flexible. The resting dimension of the band is 18 in. The band stretches around them very comfortably with no sagging. The velcro closure device is VERY sturdy. This device does exactly what it says it will do.