Abstract: A microscopic preparation marker includes a tape carrying a series of self-bonding marks which in use become preferentially bonded to the preparation. The device includes a spool with a supply of the marker-carrying substrate tape and another spool that drives the tape so that the tape leaves on the surface of the cover slide of the preparation, surrounding an area of interest that is to be later examined in more detail, a new mark each time the substrate tape is advanced and pressed against the cover glass. The device can be applied in scientific fields that use optical microscopes.

Abstract: A hydraulic device, depending for performing mechanical anastomoses within the field of surgery, consisting of a head which sutures the ends to be anastomized by means of metal staples, hydraulically operated by means of plungers; a flexible body consisting of hydraulic conducting tubes which can be bent to allow anastomoses to be carried out in anatomical locations with difficult access for currently used rigid systems; and a control system which operates the fluid driving the head mechanisms; provided with a valve system to ensure proper stapling.