Medical Devices for Healthcare Professionals
Reltech MD21
Specification Overview
Product Name: Reltech MD21
Model Number: MD21
JAN Code: 4580116810060
Generic Name of Medical Device: Electrotherapy Device
JMDN Code: 70614000
Medical Device Classification: Regulated Medical Device; Medical Device Requiring Specific Maintenance and Management
Medical Device Certification Number: 3022ABBZX00088000
Indications and Effects: Relief of headaches, stiff shoulders, insomnia, and chronic constipation
Maximum number of simultaneous output channels: 2
Output voltage: –5.5 ± 0.5 kV
Output electrode: AC S only
Electrode cable length: Select either 2.5 m or 4.0 m
Maximum treatment time per session: 99 minutes
Product Contents: Main Unit and Accessories
Weight: Approx. 2.2 kg
External Dimensions: Width 300 mm × Depth 280 mm × Height 110 mm
Rated Voltage: AC 100–240 V~(Limited to AC 100 V when used in Japan)
Rated Frequency: 50–60 Hz
Power Input: 50 VA
Accessories: Output electrode plate, 0V electrode plate, covers and belts for the conductor electrode plates, AC/DC adapter, insulating mat, and more
Warranty Period: 1 year from the product shipment date
Suggested Retail Price: ¥1,210,000 (tax included)
Flagship Rejuvenating Electronic Therapy Device
This is the flagship model among Reltech's reduced-electron therapy devices, featuring (1) two simultaneous output channels and (2) the highest output voltage per channel.
Direct Current Potential Therapy Device (Negative Potential Therapy Device)
There are many types of electrotherapy devices on the market, but most of them are AC electrotherapy devices. As a result, they apply positive and negative voltages (+ and –) to the body in alternation. Our company’s device is one of the few electrotherapy devices that uses direct current (DC)—derived from rectifying and smoothing out AC—to apply only negative voltage (–) to the body.
Reltech considers the negative potential therapy function to be a prerequisite for the transdermal electrical current delivery function. Furthermore, to the best of Reltech’s knowledge, our potential therapy device is the only one that incorporates both the structure and mechanism necessary for transdermal electrical current delivery.
Electrode plates can be selected to meet specific needs
The electrodes are the most important components of an electron therapy device. The MD21’s electrode assembly includes the AC output electrode, which supplies electrons to the human body and applies a negative voltage, and the BD/YD 0V electrodes, which form a path for electrons to flow through the body.
The 0V electrode plate BD uses a single plate to form an electron flow path, while the YD uses two plates. Reltech believes that the BD is easier to install than the YD, while the YD can form a wider variety of flow paths than the BD.
Medical Devices Covered by Health Insurance
The MD21 is a medical device covered by health insurance. When medical institutions use the MD21 to provide treatment within their facilities, they can bill health insurance for those services.












