A b-ultrasound monitoring movement mechanism with guiding device

Abstract

The invention provides a B-ultrasound monitoring movement mechanism with a guide device, comprising: a lifting motor module, including a lifting motor and a screw nut mechanism; a lifting mechanism guide module, connected with the screw nut mechanism, including a guide pillar and a The guide bearing on the pillar; the lifting cylinder, which cooperates with the guiding module of the lifting mechanism, to form a precise guiding motion pair, which has an inner wall in rigid contact with the guiding bearing; and the fixed module of the B-ultrasound probe, which is connected with the guiding module of the lifting mechanism. There is a B-ultrasound probe on it. The B-ultrasound monitoring movement mechanism of the present invention adopts guide pillars and multiple guide bearings as guide pistons, which can provide sufficient structural rigidity, and is simple in structure, without requiring high-precision requirements for parts processing and assembly brought by precision guide rails, and can be disassembled repeatedly Without damage; and the use of guide bearings to achieve sliding friction point contact, effectively reducing system friction and improving the smoothness of system movement.

Description

Technical field [0001] The present invention belongs to the field of top-type HIFU treatment, and more particularly to a B-ultrasound monitoring mechanism having a guide device. Background technique [0002] High-intensity focus ultrasound treatment (HIFU treatment) is a non-invasive treatment process developed in recent years, especially in the field of tumor melting. The technique is to focus on vitro low energy ultrasonic wave in vivo target area, producing a biological effect such as instantaneous high temperature, airborne, and mechanical effects in a tumor, killing tumor cells in the target area. [0003] At present, there is widely used at home and abroad to HIFU treatment systems for B-ultrasound image guidance. The system uses B-ultrasound images to position and monitor lesions, precise treatment. The shorter the B-ultrasound, the shorter the distance of the lesion, the better the image quality, the more accurate positioning monitoring. [0004] B-ultrasound works in a h...

AI Technical Summary

Problems solved by technology

[0005] The existing guiding mechanism structure adopts a non-integral rigid guiding structure. Specifically, the upper and lower guiding rings and support rods are connected to form a cylindrical guiding piston. Due to the lack of rigidity of the overall structure after assembly, the deformation is large, and it cannot provide accurate rigid guiding. Large relative displacement occurs after being subjected to lateral force, causing the monitoring target to shift

The sliding friction pair is used in the movement process of the slip ring, the contact area is large, there is no lubricating medium, the sliding friction force is large, and the system movement is not smooth

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