Medical catheter and medical device comprising same
A technology for medical catheters and medical devices, which is applied in the field of medical catheters and medical devices containing the catheters, which can solve the problems of insufficient lighting, difficulties, and high cost of use, and achieve the effects of expanding the scope of use, reducing the difficulty of operation, and reducing the number of sampling times
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Embodiment 1
[0188] The working process of the inner control and bending mechanism described in the first embodiment is as follows:
[0189] Rotating the locking handle 145, the locking handle 145 rotates and drives the pressing rod 144 to rotate and moves downward in a small range through the thread. The distal ends of the adjacent locking pieces 147 are relatively closed and respectively hold the upper disc 127 and the lower disc 119, so as to realize the self-locking of the inner tube 2 in any direction. In the non-self-locking state, the distal ends of the adjacent locking pieces 147 can be relatively opened by the spring 148 and contact the self-locking of the upper wheel disc 127 and the lower wheel disc 119 .
[0190] The specific structure of the second embodiment of the inner control bending self-locking mechanism is described below. The inner control bending self-locking mechanism is provided outside the handle body 1 .
[0191] Please refer to Figure 16 and Figure 17 In the...
Embodiment 2
[0194] The working process of the inner tube-controlled bending locking mechanism described in the second embodiment is as follows:
[0195] Please refer to Figure 16 and Figure 17 , the rotation locking knob 109 drives the rotation limit block 140 to rotate, and the rotation limit block 140 rotates along the first surface 1411 so that the fixed limit block 141 is subjected to an axial extrusion force to achieve axial movement. A first locking washer 1421 is provided on the back of the fixed stop block 141. The first locking washer 1421 is squeezed and axially presses the lower wheel 108, and the lower wheel knob 108 is squeezed During the movement, the first locking washer 1421 is compressed and deformed. After the first locking washer 1421 is deformed, the damping is increased and the shaft end of the lower wheel disc 119 is held tightly so that it cannot rotate. . At the same time, after the lower roulette knob 108 is squeezed, the shaft end of the lower roulette wheel...
Embodiment 3
[0210] The specific structure of the inner tube locking mechanism 101 described in the third embodiment is as follows:
[0211] The inner tube locking mechanism 101 includes a second fixing part and a second rotating part hinged with the second fixing part, and the second fixing part and the other end of the second rotating part that are not connected through a tight Fixed device connection.
[0212] Please refer to Figure 23 , Specifically, the second fixed part adopts a fixed end 10112, and the second rotating part adopts a clamping end 10110. The fixed end 10112 and the clamping end 10110 are respectively provided with semicircles for matching the outer diameter of the inner tube 2. In the clamping port 10114, one end of the fixed end 10112 and one end of the clamping end 10110 are hinged through a hinge 10111, and the other end of the fixing end 10112 and the other end of the clamping end 10110 are respectively provided with threaded holes. The above-mentioned fastening...
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