Find HS Code and trade information for reflex calibrator

Reflex Calibrator

A reflex calibrator is a medical device used to assess and quantify the integrity of the reflex arcs in the nervous system. It provides a standardized and objective measurement of reflex responses, aiding in the diagnosis of neurological conditions.

Material

Reflex calibrators typically incorporate the following materials:

• Hammer component: Often constructed from rubber, plastic, or a weighted metal head with a rubber striking surface. The weight and shape are critical for consistent stimulus delivery.
• Sensor/Transducer: Modern calibrators utilize piezoelectric or force sensors to detect and measure the force generated by the reflex response.
• Electronic components: Include amplifiers, analog-to-digital converters, microprocessors, and displays for signal processing and data presentation.
• Housing: Generally made of durable plastic or metal to protect internal components.
• Cables/Connectors: Used for power and data transmission.

Purpose

The primary purpose of a reflex calibrator is to:

• Objective Assessment: Provide a quantifiable measure of reflex responses, reducing subjectivity compared to manual testing.
• Neurological Diagnosis: Aid in the diagnosis of conditions affecting the nervous system, including peripheral neuropathy, spinal cord injuries, and central nervous system disorders.
• Monitoring Disease Progression: Track changes in reflex responses over time, helping to assess the effectiveness of treatment and monitor disease progression.
• Research: Facilitate research studies investigating reflex function and neurological disorders.

Function

Reflex calibrators function by:

1. Stimulus Delivery: A controlled mechanical stimulus (typically a tap with the hammer) is applied to a specific tendon.
2. Response Detection: The sensor detects the resulting muscle contraction (the reflex response).
3. Signal Processing: The electronic components amplify and convert the detected signal into a quantifiable measurement (e.g., force, velocity, amplitude).
4. Data Display: The measurement is displayed on a screen, often with normative data for comparison.
5. Data Storage/Output: Many calibrators store data for later analysis and can output data to a computer.

Usage Scenarios

• Neurology Clinics: Used by neurologists to assess patients with suspected neurological disorders.
• Physical Therapy Clinics: Used by physical therapists to evaluate and monitor patients with muscle weakness or impaired reflexes.
• Hospitals: Used in emergency departments and inpatient units to assess patients with acute neurological injuries.
• Research Laboratories: Used in research studies investigating reflex function and neurological disorders.
• Sports Medicine: Used to assess neurological function following concussions or other injuries.

Common Types

• Manual Reflex Calibrators: These devices require a trained examiner to apply the stimulus and interpret the response. They often incorporate a force sensor in the hammer head.
• Automated Reflex Calibrators: These devices automatically deliver the stimulus and measure the response, reducing examiner variability.
• Electromyography (EMG)-based Reflex Testing: While not strictly a "calibrator," EMG can be used to objectively measure reflex responses by recording the electrical activity of muscles. This provides a more detailed assessment of reflex function.
• Quantitative Sensory Testing (QST) Devices: Some QST devices can assess reflex responses as part of a broader assessment of sensory function.

Based on the provided information, the following HS codes may be relevant to “reflex calibrator”:

• 9031804000: Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof: Other instruments, appliances and machines: Electron beam microscopes fitted with equipment specifically designed for the handling and transport of semiconductor wafers or reticles.

  • 90: Chapter 90 covers measuring, checking, testing, navigating and control instruments and apparatus; meters and counters; optical instruments.
  • 31: Heading 31 specifically relates to measuring or checking instruments, appliances and machines.
  • 80: Subheading 80 covers other instruments, appliances and machines not elsewhere specified or included.
  • 40: Further specifies electron beam microscopes fitted with equipment for semiconductor wafer/reticle handling.

• 9031497000: Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof: Other optical instruments and appliances: Other: For inspecting masks (other than photomasks) used in manufacturing semiconductor devices; for measuring surface particulate contamination on semiconductor devices.

  • 90: Chapter 90 covers measuring, checking, testing, navigating and control instruments and apparatus; meters and counters; optical instruments.
  • 31: Heading 31 specifically relates to measuring or checking instruments, appliances and machines.
  • 49: Subheading 49 covers other optical instruments and appliances.
  • 70: Further specifies instruments for mask inspection and surface contamination measurement.

Regarding HS codes 9031804000 and 9031497000, the total tax rate is 55.0%, comprised of a base tariff of 0.0% and an additional tariff of 25.0%, increasing to 30.0% after April 2, 2025.