Blood vessel anastomat made of nickel-titanium memory alloy
A memory alloy and stapler technology, applied in trocars, surgical instruments, medical science, etc., can solve the problems of tissue hyperplasia at the anastomosis, poor vascular alignment, and slow suture speed, so as to reduce bleeding and ensure surgical safety Reliable, speed-enhancing effects
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[0020] The titanium-nickel memory alloy blood vessel stapler of the present invention comprises a helical titanium-nickel memory alloy wire 3 with different diameters and two semicircular suture needles 1 arranged at both ends of the titanium-nickel memory alloy wire 3 at 27-33°C. , the two ends of the nickel memory alloy wire 3 are respectively connected with the suture 2 and two semicircular suture needles 1 . The titanium-nickel memory alloy wire 3 and the two sutures 2 are of an integrated structure, and the two semicircular suture needles 1 and the sutures 2 are connected by welding. The suture 2 is generally a straight line, and the included angle between the suture 2 and the axial direction of the helical titanium-nickel memory alloy wire 3 ranges from 60° to 90°.
[0021] The blood vessel stapler of the present invention can be pulled apart at normal temperature, and returns to a "spiral shape" when it is close to the temperature of the human body, and is in a superela...
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