3D (three-dimensional) mechanical probe and rope transmission device

A rope transmission and rope technology, which is applied in the field of 3D mechanical probes and rope transmission devices, achieves the effect of large selection range and avoiding mutual interference.

Active Publication Date: 2014-12-24
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a 3D mechanical probe that can achieve linear transmission within a rotation angle greater than 90° for the problem that the active axis of the traditional 3D mechanical probe can only maintain linear transmission within a rotation angle of no more than 90° and rope drive

Method used

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  • 3D (three-dimensional) mechanical probe and rope transmission device
  • 3D (three-dimensional) mechanical probe and rope transmission device
  • 3D (three-dimensional) mechanical probe and rope transmission device

Examples

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Embodiment Construction

[0052] In the traditional 3D mechanical probe rope transmission device, the two ropes are on the same plane and the ropes are fixed on the same fixed point of the driving shaft, such as Figure 1a and Figure 1b As shown, the driving shaft can maintain linear transmission within the rotation angle of ±90° (clockwise rotation is counted as +, and counterclockwise rotation is counted as -). Taking 90° counterclockwise rotation as an example, it is obvious that the Within the range of rotation angle, the transmission of the driving shaft and the driven shaft is linear transmission. When the rotation angle exceeds 90°, such as Figure 1c As shown, due to the existence of a fixed point, the rope will form an angle θ with the vertical direction, and as the driving shaft continues to rotate, the value of θ will become larger and larger, so the transmission of the driving shaft and the driven shaft is a nonlinear transmission , increasing the difficulty of controlling the rotation ang...

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Abstract

A 3D (three-dimensional) mechanical probe comprises a handheld portion and a penetrating portion. The size of the handheld portion is greater than that of the penetrating portion. The handheld portion comprises a rope transmission device. The rope transmission device comprises a driving shaft, a first rope and a second rope; the driving shaft is provided with a first fixation point and a second fixation point; the first fixation point and the second fixation point are arranged on different radial faces of the driving shaft; the first rope is connected to the first fixation point and wound on the driving shaft along the periphery of the driving shaft; the second rope is connected to the second fixation point and wound on the driving shaft along the periphery of the driving shaft; a first reversing pulley set comprises a first pulley and a second pulley; the penetrating portion comprises a driven shaft; the first rope and the second rope pass by the first pulley and the second pulley respectively and are then wound on the driven shaft. The driving shaft of the 3D mechanical probe allows large-range linear transmission.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a 3D mechanical probe and a rope transmission device. Background technique [0002] An ultrasonic probe with 3D imaging function is called a 3D mechanical probe, which generally has a transducer unit for transmitting and receiving signals. The stepping motor is used as the driving power source, and the transducer unit is driven to swing within a certain angle under signal control. At each swing angle, the transducer unit can emit ultrasonic waves and receive echoes with human tissue information, so it can image human tissue at every angle within the swing range, thereby constructing a 3D image of human tissue . [0003] 3D mechanical probes are further divided into surface 3D mechanical probes and intracavity 3D mechanical probes. Common transmission methods for intracavity 3D mechanical probes include bevel gears, ropes, etc. Bevel gear transmission has high requirements f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00
CPCA61B8/08A61B8/12A61B8/4466A61B2576/00
Inventor 唐明陈振宇白乐云
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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