Ultrasound diagnosis equipment uses ultrasonic to extract all kinds of information of human tissue, such as organization interface information, blood flow information, so ultrasound probe, which can transfer information. Ultrasound probe is the key part of ultrasound diagnosis and its value has accounted for a quarter to a third of one ultrasound instrument total value, like B ulrasound probe is the same. In addition, doctors use it to check patients and it is easy to have faults. Therefore, it is necessary for reasonable using and maintenance.

In general, there are several faults of ultrasound probe as follows: Appearance cracking, internal sparkling, sensitivity decreasing, cable cracking and electrode lead break.

 First, Appearance cracking, internal sparkling, reduced sensitivity.

(1)Although ultrasound probe manufacturers are different, the basic structure is the same in general. Put the transducer in probe cavity of plastic wrap.

 As we know, when we examinate, checking parts have to been embrocated enough lotus root mixture, but this lotus root mixture is the biggest threat of plastic wrap. In most conditions, probe surface lotus root mixture is not clear and cause appearance cracking after finishing operation. After a long time, lotus root mixture has corrosion for the plastic and rubber band and damage probe. Therefore we must clean the surface lotus root mixture after finishing work and you had better use clean and wet soft cloth to wipe it; The other reason of appearance cracking is that probe is often influenced by the sun and large temperature difference. Because the sun will make plastic materials early ageing and deformation. So, ultrasound equipment should be placed in constant greenhouse and avoid light ray. For example probe frequency instability, you can consider probe moisture, then there is no effect after using no water copper sulfate moisture absorption; The following you use special tool to open probe shell and take down the circuit board and find that there is more circuit board oil and use 99.5% pure alcohol to soak ten minutes; Then use fuzz wipe oil and dirty; The next step, you can use fan to blow dry and put it back and open the machine, probe fault is removed.

(2) Internal sparkling. In general, probe production process defect causes sensitivity decrasing. It will happened after a period of time, especially bad penetration ability after adjusting host parameters.

Second, Circle image causes bad local

In general, chip problem cause this fault. For example, there is a white bright field from up to down and there is no imge information in this field. After checking, the probe internal chip damage causes this.

Third, Cable craze or electrode lead break

Due to probe move back and forth in use process, it will pull cable automatically, especially in turning probe process, it will make probe and the cable wind. Therefore, bad operation habit or cable placed bad cause this fault. For this fault, you can open probe shell and rearrange all lines and weld well, then use super glue sticky shell well.

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