Transmission device for enabling ultrasonic three-dimensional probe transducer to rotate back and forth and application method thereof

Abstract

The invention discloses a transmission device for enabling an ultrasonic three-dimensional probe transducer to rotate in a reciprocating manner. The transmission device comprises a power unit which comprises a motor and a cam shaft in transmission connection with the motor, wherein the side wall of the periphery of the cam shaft is provided with a cam groove with a height difference in space; a power output unit which comprises a transducer and a transmission shaft connected with the transducer, wherein two spiral grooves which correspond to each other in space and penetrate through each otherare formed in the power output unit; and a transmission unit which comprises a rolling shaft in contact connection with the cam groove and a sliding shaft penetrating through the spiral grooves. According to the transmission device for enabling an ultrasonic three-dimensional probe transducer to rotate in a reciprocating manner, the structure design of the transmission device is capable of converting motor uniform-speed one-way rotation into transducer forward and reverse rotation, 0-360 DEG rapid scanning is carried out on a to-be-scanned position, the scanning speed is higher, vibration issmall, noise is low, and compared with an existing radial swing scanning structure, transducer axial rotation scanning is simpler.

Description

technical field [0001] The invention relates to a device for medical detection. More specifically, the present invention relates to a transmission device for reciprocating rotation of an ultrasonic three-dimensional probe transducer used in the detection of an ultrasonic three-dimensional probe and an application method thereof. Background technique [0002] There are two types of acquisition methods for ultrasound 3D imaging data: one is that the doctor holds the probe to obtain a series of two-dimensional ultrasound images, and then reconstructs the three-dimensional structure through complex image processing. This method has high requirements for the operator; The first is to obtain three-dimensional image information through mechanical or electronic control. This method is easy to operate and apply. Therefore, most of the existing three-dimensional probes use stepping motors in forward and reverse directions, and are driven by steel wires or gears to drive the transducer...

AI Technical Summary

Problems solved by technology

[0004] 1. Incomplete gear meshing transmission is easily stuck due to processing and assembly errors;

[0005] 2. When rotating at high speed, the incomplete gear transmission frequently changes direction, the force is uneven, the impact force is large, the vibration is increased, and the noise is increased;

[0006] 3. Multi-stage gear reversing transmission, low transmission efficiency

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