Abstract: A surgical thread is made of a metal, polymer or biological material embodied in the form of a spiral whose diameter ranges from 0.5 to 5 mm. The thread has a diameter ranging from 0.1 to 1 mm and exhibits the properties of a compression or extension spring obtainable by heat treatment. Also a method is disclosed which is characterized in that it consists in introducing the spiral-shaped thread into subcutaneous soft tissues in order to tighten and fix said tissues by means of a puncture needle in bore of which a thread-spiral exhibiting the properties of a compression or extension spring is fixed from outside or from inside. When the needle is extracted the thread-spiral remains under skin preserving the compression or extension properties thereof, thereby producing a skin compression or extension effect.

Abstract: The inventive strip-shaped endoprosthesis (1) for reparative anaplastic surgery includes a cover (2) whose surface (3) is provided with protrusions (4) which are embodied in the form of inclined conical barbs (6) having flexible and elastic sharpened ends (5). The protruded barbs are differently disposed on the endoprosthesis surface in order to improve the fixation thereof to soft tissues. The embodiments of said endoprosthesis are selected according to the purpose thereof. The embodiments of volume endoprosthesises (9 and 14) for eliminating the breast ptosis and correcting a dorsum of nose are also enclosed. The protruded barbs are applied on the cover in such a way than the resistance of the endoprosthesis is preserved.