Hydraulic automatic ultrasonic probe for elasticity imaging

Abstract

The invention relates to a hydraulic automatic ultrasonic probe for elasticity imaging, which comprises a probe core part, a probe seat, a sliding shaft, a sliding bearing, a pressure sensor, a first hydraulic cylinder, a connection base, a second hydraulic cylinder and an electric hydraulic pump. The probe core part is connected with a push rod of the second hydraulic cylinder by the sliding shaft. A user only needs to hold the first hydraulic cylinder (a handle) with a hand without manually applying a force and the probe core part is very easily kept always in contact with a checked part, so that working intensity of a checking doctor is reduced and the problem of interruption of elasticity imaging, which is caused by the case that the probe core part is separated from the checked part, is avoided; an acting force of the push rod of the second hydraulic cylinder is perpendicular to the surface of the probe core part, so that quality of elasticity imaging is improved; and moreover, the pressure sensor is arranged on the inner side wall of the first hydraulic cylinder, so that the pressure of the probe core part is indirectly measured, the stress condition of the checked part is more accurately detected and the elastic modulus of the checked part is better reflected, and thus, elasticity difference of the checked part and the surroundings thereof is more accurately judged.

Description

technical field [0001] The invention relates to an ultrasonic probe, in particular to a hydraulic automatic ultrasonic probe for elastography. Background technique [0002] In the process of ultrasound elastography, it is usually necessary to use a hand-held ultrasound probe. The current hand-held ultrasound probe generally includes a probe core and a handle, and one end of the handle is connected to the probe core. When performing ultrasonic elastography, the examiner needs to continuously apply a series of forces along the axial direction of the handle to make the core of the probe vibrate in a small amplitude to meet the requirements of elastography. mistake. In addition, because the probe core is directly connected to the handle, it is difficult to control. When the probe core is vibrated in a small range, the probe core is easy to break away from the inspection site, resulting in intermittent elastography and affecting the quality of elastography; After the position, ...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned ultrasonic probe can measure the pressure of the probe core, it still has the following defects: (1) The actual area of ​​the probe is larger than the area of ​​the probe core, and the contact area of ​​the inspection part is larger than the area of ​​the probe core. When the area of ​​the part is small, it is impossible to accurately judge the elastic difference between the inspection part and the surrounding area; (2) Once the pressure deviates from the direction perpendicular to the surface of the probe core, the pressure at some points on the inspection part cannot be detected, and there is a pressure blind zone

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