Medical ultrasound scanners are a common medical device that uses high-frequency sound waves to generate images to help doctors diagnose diseases. This article will introduce the technical principles and operating procedures of medical ultrasound scanners.

Technical Principles

The working principle of medical ultrasound scanners is based on the difference in the propagation speed of ultrasound between different tissues. When sound waves pass through human tissues, if they encounter tissues with different densities or velocities of sound, reflection, scattering, and refraction will occur. Ultrasonic scanners generate images by detecting these echoes.

Specifically, the ultrasonic scanner contains an ultrasonic probe inside, which can emit high-frequency sound waves and receive their echoes. The probe is usually coated with gel to help sound waves pass through the skin and into the body. After passing through the probe, the acoustic wave echo is converted into an electrical signal and sent to a computer for processing. The computer analyzes the propagation of sound waves in various tissues based on the time and intensity of the echoes, and generates corresponding images.

Operation process

Medical ultrasound scanners are simple to operate, but require professional training to use them correctly. The following is the general operation process:

Preparation: Place the patient on the examination bed and provide necessary protective measures (such as protective clothing).

Prepare the equipment: install the ultrasonic probe on the scanner and coat the probe with gel.

Start scanning: Place the probe on the patient's skin and start scanning. The doctor can observe the image on the screen and adjust the position and direction of the probe as needed.

End Scan: When the scan is complete, remove the probe from the patient and turn off the device.

Processing data: Store the scanned data in a computer for analysis and interpretation. Doctors can generate reports as needed to help diagnose diseases.

summary

Medical ultrasound scanner is a non invasive diagnostic tool that can help doctors quickly and accurately diagnose diseases. Understanding its technical principles and operating procedures can better understand the scanning results and diagnostic significance. At the same time, we should also pay attention to the safe use of ultrasound scanners to avoid unnecessary harm to patients.