MICRO-SURGERY FIXATION DEVICE, VARIANTS AND MANIPULATION PUSH-BAR FOR MOUNTING THE SAME

摘要

The present invention relates to the field of medicine, more precisely to the field of micro-surgery, and may be used to expand narrowed sections of tubular organs or vessels. This invention may also be used for attaching edges on openings in tissues as well as for attaching prostheses such as obstruction, valve or filtration prostheses on wall defects and on the anastomoses of hollow or tubular organs. This invention may be used to increase the scope of applications and the functional capacities of this micro-surgery fixation device as well as to enhance reliability and safety when installing the same. In one embodiment, the micro-surgery device comprises two or more springs, each spring being in the shape of a truncated cone or flat ring made of a zigzag-shaped rod defining a closed loop. The mobile springs are connected with each other at the zigzag summits located on the circumference. The springs may be biased under the action of an external load and recover their initial position. In another embodiment, the micro-surgery device comprises a single spring which is in the shape of a truncated cone or flat ring made of a zigzag-shaped rod forming a closed loop. The zigzag summits are located on the circumference and connected to mobile fixations which are each in the form of a resilient rod fitted with a hook. The manipulation push-bar includes rods with guides connected to a catheter tube via a coupling. The rods are mounted inside the catheter tube and the coupling are capable of longitudinal displacement within the latter and along the guides.