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Endoscope for direct visualization of the spine and epidural space (Endoscope for direct visualization of the spine and epidural space)
Endoscope for direct visualization of the spine and epidural space (Endoscope for direct visualization of the spine and epidural space)
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机译：内窥镜可直接观察脊柱和硬膜外腔（内窥镜可直接观察脊柱和硬膜外腔）
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摘要
A system 10 for direct visualization of the spine includes a catheter 12 and an optical fiber bundle 20 disposed within the catheter 12 connected to the light source and the camera. The optical bundle is coupled to the base end of the catheter to permit rotation of the bundle relative to the catheter. The device for deflecting the catheter tip provides various viewing angles 13 for the bundle of fibers and helps to adjust the catheter orientation through the spinal space. The device includes a prong wire (57) extending through the catheter and secured to its distal end (83). The base end of the deflection wire is secured to a sleeve 58 slidably disposed about the catheter to contact the stop surface 59 as the catheter and biasing wire move. The stop surface prevents further movement of the catheter and creates a tension in the wire between the wire fixation portion of the catheter and the sleeve, thereby causing the catheter tip to flex in the fixed direction.
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