The KX-3A Spasmodic Muscle Low Frequency Therapy Device is a medical device designed specifically for relieving muscle spasms. It uses two independently adjustable low-frequency pulse currents (A and B) to stimulate spastic and antagonistic muscles, respectively. The A-channel current first stimulates the spastic muscle tendon, triggering the excitation of nerve muscle spindles, and inhibiting the spastic muscle through spinal reflex; The B-channel current then stimulates the antagonistic muscle belly, causing it to contract to counteract spasmodic muscles.
KX-3A Spasmodic Muscle Low Frequency Treatment DeviceIt is a medical device designed specifically to relieve muscle spasms. The following is a detailed introduction to its core information:
Interaction inhibition therapy
KX-3A Spasmodic Muscle Low Frequency Treatment DeviceStimulate spastic and antagonistic muscles through two independently adjustable low-frequency pulse currents (A and B), respectively. The A-channel current first stimulates the spastic muscle tendon, triggering the excitation of nerve muscle spindles, and inhibiting the spastic muscle through spinal reflex; The B-channel current then stimulates the antagonistic muscle belly, causing it to contract to counteract spasmodic muscles. This alternating stimulation (pulse cycle of 1-2 seconds, delay time of 0.1-1.5 seconds) forms interactive inhibition, effectively reducing muscle tone and increasing antagonistic muscle strength.
Accurate parameter adjustment
pulse width0.1-0.5ms continuously adjustable, affecting stimulation intensity (the larger the pulse width, the stronger the stimulation).
output intensityPeak current of 0-99A, can be fine tuned according to patient tolerance.
timer function5-30 minutes with six options to avoid excessive stimulation.
safety design
Equipped with misoperation indication (light up when pulse cycle ≤ delay time), overload protection (stop output when electrode falls off), and short circuit protection functions to ensure treatment safety.
Core indications
Neurological disordersSpasmodic paralysis caused by post-stroke sequelae, traumatic brain injury, spinal cord injury, multiple sclerosis, etc.
Pediatric fieldChildhood cerebral palsy (CP) and postpartum spastic paralysis.
otherIncreased muscle tone (such as sequelae of poliomyelitis), limited joint mobility (requiring traction therapy).
treatment mode
Alternating stimulationSignificantly reduce muscle tone through the interaction of two sets of currents.
Unipolar stimulationFor small muscles or distal muscle groups, acupoint electrotherapy (such as electroacupuncture) can be combined to enhance the therapeutic effect.
Functional exerciseStimulate antagonistic or spastic muscles separately to improve joint mobility and prevent soft tissue contractures.
Electrode placement
The A electrode is attached to both ends of the spastic muscle tendon (such as the Achilles tendon of the triceps muscle), and the B electrode is attached to the antagonistic muscle belly (such as the anterior tibial muscle).
The electrode needs to be fixed with a damp cloth cover or adhesive electrode to ensure good skin contact and avoid electric current burns.
Parameter setting suggestions
Initial treatmentThe pulse width is 0.2-0.3ms, and the intensity should be significant muscle contraction but painless.
Treatment schedule1-2 times a day, 20 minutes each time, lasting for 2-4 weeks as one course of treatment.
contraindication
Absolute taboos: pregnant women's lower abdomen, pacemaker carriers, malignant tumors, acute suppurative inflammation, thrombophlebitis.
Relative contraindications: active stage of amyotrophic lateral sclerosis (ALS) and metal foreign bodies in the treatment area.
technologically mature
Since its clinical application in the 1980s, after decades of verification, it has shown particularly good results in the rehabilitation of hemiplegia and cerebral palsy. Its dual channel design is more in line with neurophysiological mechanisms than single channel devices, with a treatment efficiency improvement of over 30%.
Portability and durability
The host weighs about 10kg and is compact in size, suitable for use in hospital departments and community rehabilitation institutions. Internally, modular circuits are used, with an average time of over 10000 hours.
Clinical recognition
More than 80% of the rehabilitation departments in top tier hospitals across the country are equipped with this equipment, and the market sales will increase by 200% year-on-year in 2023, with a market share of 65% in the field of pediatric rehabilitation.
Case 1A 5-year-old child with cerebral palsy, Ashworth grade 3 for lower limb muscle tone. After 4 weeks of KX-3A treatment, muscle tone decreased to grade 1 and independent walking ability significantly improved.
Case 2Right upper limb spasticity in stroke patients (modified Tardieu Scale III), combined with KX-3A stimulation and rehabilitation training, increased the passive range of wrist joint movement from 30 ° to 100 ° after 6 weeks.
Maintenance points
This device achieves non-invasive treatment through physical electrical stimulation and is one of the fundamental devices in the field of neurological rehabilitation. Clinical practice has shown that when combined with rehabilitation training, it can significantly improve patients' self-care ability and reduce the risk of complications. Before use, it is necessary to have a professional physician evaluate the indications and develop a personalized plan.
