2results about How to "Improve radial support" patented technology

The utility model discloses a kind of bendable assembly, insertion part and endoscope, it is related to medical instrument technical field.The bendable assembly of the utility model, including multiple sequentially connected snake bone joints, still be equipped with positioning groove on bendable assembly, positioning groove is used to install traction rope, two adjacent positioning grooves are spaced apart, and sleeve pipe is arranged outside traction rope, the distal end of sleeve pipe is fixedly connected with carrier, the first positioning groove located in proximal end is located in the distal end of sleeve pipe fixed point, the first positioning groove located in proximal end is adjacently arranged with carrier, or the number of components between the first positioning groove located in proximal end and carrier is less than or equal to preset number, or the first positioning groove located in proximal end is located on carrier.The utility model can improve the radial support force of traction rope at the distal end of sleeve pipe by the first positioning groove of proximal end, so that when snake bone assembly bends, traction rope is not easy to abut with the distal end face of sleeve pipe, so as to relieve the problem that traction rope is abraded by the distal end face of sleeve pipe.

This invention discloses a braided mesh stent and a method for manufacturing the braided mesh stent. The braided mesh stent comprises N sections of braided mesh tubing, which are formed by braiding filaments, where N ≥ 2 and N is a natural number. Each section of the braided mesh tubing has a first end and a second end arranged opposite to each other along its axial direction. The second end of the i-th section of the braided mesh tubing is partially connected to the first end of the (i+1)-th section of the braided mesh tubing in the circumferential direction or indirectly connected through a flexible element, forming a movement allowance between the i-th and (i+1)-th sections of the braided mesh tubing and creating a blood flow channel within the stent, where 1 ≤ i ≤ N-1 and i is a natural number. Because there is a movement allowance between adjacent braided mesh tubing sections, the two sections can move freely relative to each other, reducing the stent's obstruction of blood vessels and preventing excessive local stress that could lead to stent breakage.