TENS Mid-Frequency Therapy Device
TENS (Transcutaneous Electrical Nerve Stimulation) and mid-frequency therapy devices are widely used non-pharmacological tools in pain management. Their princIples are complementary and their applications are well-suited to different scenarios. They can block pain signals and accelerate local repair at the physiological level, making them a preferred auxiliary solution for musculoskeletal pain, postoperative pain, and other similar conditions.
- Core Principles: Three Mechanisms to Decipher the Pain Code
- Gate Control Theory: Blocking Pain Transmission
The posterior horn of the spinal cord contains a "pain gate," where fine fibers transmit pain signals and coarse fibers transmit tactile signals. TENS and mid-frequency current activate the coarse fibers, closing the pain gate and directly blocking the transmission of pain signals to the brain. High-frequency TENS (>100Hz) rapidly closes the gate, while mid-frequency electrotherapy further enhances the blocking effect through deep stimulation.
- Release of Endogenous Analgesic Substances: Activating the Body's "Natural Painkillers"
Electrical stimulation promotes the secretion of analgesic substances such as endorphins and serotonin, while simultaneously inhibiting the release of inflammatory factors, thus reducing pain at its source. Studies show that this "natural analgesia" effect can significantly reduce pain scores without drug side effects.
- Improved Local Circulation: Accelerated Metabolism and Repair
Medium-frequency current (1kHz-100kHz) has strong penetrating power, which can dilate blood vessels, promote local blood circulation, and increase blood flow by 20%-30%. This can accelerate the excretion of pain-causing substances (such as lactic acid and inflammatory mediators) and deliver nutrients to damaged tissues, helping to reduce swelling and repair tissues.