Silk thread auxiliary movement device, driving system and control method
A motion device, linear motion technology, applied in medical science, surgical robotics, surgery, etc., can solve the problems of operator inconvenience, complicated device structure, noise artifacts in scanned images, etc., and achieve the effect of increasing accuracy
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Embodiment 1
[0069] The present invention proposes an auxiliary movement device including a movement component and a drive component, the movement component and the drive component are arranged separately, and there is a certain distance between the movement component and the drive component in actual use, That is, the drive assembly is set away from the nuclear magnetic body or the magnetic resonance chamber. First, the influence of the drive assembly on magnetic resonance imaging and temperature measurement technology is avoided. Second, the weight of the moving assembly is reduced, so that the volume and weight of the moving assembly Reduced to the minimum, so that the moving component can be fixedly connected with the skull nail without going through an additional fixing device. In addition, the driving device of the driving assembly is preferably an ultrasonic motor to be suitable for use in a nuclear magnetic environment.
[0070] see figure 1 , Figure 2A to Figure 2C , the motion...
Embodiment 2
[0085] see Figure 2A to Figure 2C , Figure 4A to Figure 4D , Figure 5 Another specific embodiment 2 of the present invention differs from embodiment 1 in that, in order to make the movement of the rotary motion assembly 3 more stable and precise, the embodiment 2 further improves the fiber catheter fixing part 5 optimized design.
[0086] A perforation 230 is defined on the linear driven moving part 23 , and a ring neck 231 is arranged around the perforation 230 , and the optical fiber catheter fixing part 5 is movably arranged in the ring neck 231 . Preferably, the diameter of the ring neck 231 is larger than the diameter of the perforation 230, and the diameter of the ring neck 231 is slightly larger than the diameter of the fiber catheter fixing part 5, so as to realize that the fiber catheter fixing part 5 is in the ring Rotational movement within the neck 231. In yet another preferred embodiment of the present invention, the fiber catheter fixing portion 5 is a ste...
Embodiment 3
[0094] Further, as Figures 6A-6C As shown, the inside of the ring neck 231 is provided with a fiber optic catheter fixing 5, and the fiber optic catheter fixing 5 includes a fiber optic catheter fixer 51 and a fiber optic catheter fixing member 52, and the fiber optic catheter fixing device 51 and the fiber optic catheter fixing member 52 are detachable Fittingly connected, the fiber optic catheter holder 51 is fixedly fitted inside the ring neck 231 .
[0095] Specifically, the optical fiber catheter fixer 51 is a stepped cavity structure, and the cavity structure includes a first cavity 511 and a second cavity 512 . The first concave cavity 511 and the second concave cavity 512 are both cylindrical concave cavity structures, they are coaxially arranged and adjacent to and communicate with each other, and the diameter of the first concave cavity 511 is larger than that of the second concave cavity 512 The diameter of the two adjacent to form a right-angle boss 513.
[0096...
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