Leaf spring for resetting a surgical punching instrument and surgical punching instrument

摘要

A leaf spring (22, 22 ', 22a, 22b) for resetting a surgical punch (10) after actuation, comprising: a mounting portion (28) for securing the leaf spring to a handle (16) integral with a guide shaft (12) of the surgical punch ) of the surgical punching instrument or to a handle (20) of the surgical punch, movable relative to the handle, the attachment portion having an opening (34) for passing a fastener to secure the leaf spring to the handle or to the operating lever; a coupling portion (30 ) for flexibly connecting the leaf spring to a second leaf spring; anda bendable spring portion (32) between the attachment portion and the spring force applying coupling portion so that the operation lever and handle for returning the surgical punch are guided away from each other, wherein a width (b) of the leaf spring in its attachment portion in the region of the opening is at least one diameter ( d) the opening is greater than a width (f) of the leaf spring in its spring portion.