Principle and Maintenance of Linear Array Ultrasound Probes

Linear array ultrasound probe plays an important role in modern medicine, aiding doctors in accurate diagnosis through high-precision imaging. To ensure the long-term effectiveness and reliability of the linear array ultrasound probe, understanding its working principle and proper maintenance methods is crucial. This article will provide a detailed introduction to the working principle and maintenance tips for the linear array ultrasound probe, helping you better use and protect this valuable equipment.

Working Principle of the Linear Array Ultrasound Probe

The linear array ultrasound probe generates and receives ultrasound signals through advanced piezoelectric effects. Specifically, the working process of the linear array ultrasound probe includes the following steps:

Ultrasound Emission

When an alternating voltage of 640V is applied to the piezoelectric crystal, metal plates become charged, forming an electric field. This field causes deformation in the piezoelectric crystal, a process known as the inverse piezoelectric effect, ultimately producing ultrasound waves.

Ultrasound Reception

When ultrasound waves encounter different tissues and organs within the body, they produce echoes. These echoes return to the piezoelectric crystal of the linear array ultrasound probe, which generates an alternating electric field due to the force applied, a process known as the direct piezoelectric effect, and is ultimately converted into an electrical signal to create an image.

Image Formation

The probe's circuit system amplifies these electrical signals and processes them to create clear two-dimensional images, providing essential diagnostic information for doctors.

Maintenance Tips for the Linear Array Ultrasound Probe

Proper maintenance is crucial to maintain the performance and extend the lifespan of the linear array ultrasound probe. Here are some key maintenance tips:

Strictly Follow Operating Instructions

Before use, carefully read the linear array ultrasound probe manual and strictly adhere to its prescribed operations to ensure the normal operation of the equipment.

Handle with Care, Avoid Impacts

The linear array ultrasound probe is a precision device that should be handled carefully to avoid impacts or drops. During transport and storage, it is recommended to use the original packaging or wrap the probe in a soft cloth to prevent damage.

Prevent Contact with Organic Solvents

Avoid contact between the linear array ultrasound probe and organic solvents. While alcohol-based solvents can be used, acetone-based solvents will damage the probe, causing cracks or breakage.

Protect the Lens Surface

The lens surface of the linear array ultrasound probe must be carefully protected, avoiding contact with or puncturing by sharp objects. Damage to the lens surface may allow coupling agents to enter the probe, affecting the performance of the piezoelectric crystal.

Use Appropriate Coupling Agents

Choose non-corrosive ultrasound coupling agents that are not irritating to the skin, and avoid oily substances, as they may corrode the probe’s acoustic lens.

Avoid High-Temperature Sterilization

The linear array ultrasound probe contains piezoelectric ceramics, which may lose their piezoelectric effect at high temperatures. Sterilization should follow the manufacturer's instructions to avoid high-temperature processing.

Regular Inspections

Before use, check the linear array ultrasound probe for any damage to the casing and cable, to prevent high-voltage electrical shocks during operation.

Clean Residues

After each use, clean any remaining coupling agent from the probe to avoid rodents or other animals gnawing on the lens, keeping the probe in good condition.