Medical device with segmented bendable section
A kind of medical equipment and bending technology, applied in the field of medical applications, can solve problems such as poor medical equipment, patient injury, and failure to reach the angle
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Embodiment 1
[0065] Figure 7a is a side view of a bendable medical device according to the example detailed in Example 1. in addition, Figure 7b to Figure 7e Provided separately Figure 7a Cross-sectional front view at lines C-C, D-D, H-H, and K-K. also, Figure 8 supply Figure 7a A non-uniform side cross-sectional view at line L-L as in Figure 7b to Figure 7e shown.
[0066] The proximal section 102 now includes a transitional backbone section 114 between the intermediate curved section 103 and the distal section 104 . Transition skeleton section 114 includes the same skeleton structure as intermediate curved section 103 and also includes support wire 107 . Support wire 107 terminates at the distal end of transitional backbone section 114 ( Figure 7a Extends proximally through the remainder of the bendable medical device 13 at position I) in . The proximal end of the support wire 107 can slide in the bendable medical device 13 and specifically pass through the guide hole 112...
Embodiment 2
[0070] Figure 9a is a side view of the bendable medical device according to embodiment 2. in addition, Figures 9b to 9e provided Figure 9a Front cross-sectional views of the bendable medical device at lines C-C, D-D, H-H, and K-K.
[0071] The bendable medical device 13 in this embodiment includes another set of support wires 107' that terminate at the distal end of the distal section 101 and run through the remainder of the bendable medical device 13. With the additional set of support wires 107', the bending stiffness of the distal section 101 and the intermediate curved section 103 can be increased while maintaining an order of magnitude of stiffness. The additional set of support wires 107' may also be used to prevent local buckling at the regions with skeletal structures, which are the distal section 101 and the intermediate curved section 103. These additional support wires 107' work in conjunction with the original support wires 107 to increase the stiffness...
Embodiment 3
[0073] Figures 10a to 10f and Figure 11 represents another embodiment of the present invention, wherein Figure 10a A side view of the bendable medical device in Example 3 is provided. Figures 10b to 10f provided Figure 10a Front cross-sectional views of the device in lines C-C, D-D, H-H, N-N, and P-P.
[0074] The difference between this embodiment and Embodiment 2 lies in the starting position of the additional support wire 107', which details the flexibility of moving the support wire 107' to meet the needs of structural strength.
[0075] like Figures 10b to 10f As shown, additional support wire 107 ′ terminates in the middle of distal section 104 and creates transition tube section 115 and passive tube section 116 . The additional support wire 107' may increase bending stiffness at the passive tubing section 116 and improve the ability to push insertion forces to the distal end.
[0076] (design example)
[0077] Two different design variations were implemente...
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