Anchoring screw device

Abstract

The present invention, the ASD, is a mechanical device for anchoring hollow tube-like structures in the human body, such as blood vessels, bowels and ureters. It facilitates positioning needles or catheters in blood vessels and it prevents those from dropping out of the vessel or from “wandering off” in the vessel. The ASD can be used in every interventional medical situation for diagnostic or therapeutic purposes. The ASD is very easy to fix onto the vessel wall. Screwing is a fast technique saving operating time and requiring only basic microsurgical skills. The manufacturing is easy. It should be understood that the foregoing is illustrative and not limiting, and that modifications may be made by those skilled in the art, without departing from the scope of the invention.

1 . An apparatus for delivering materials into a blood vessel comprising a screw having a hollow section wherein the screw terminates with a single spiral winding, wherein the screw is capable of being fixed by screwing to a blood vessel, the apparatus further including a wall for securing a needle or catheter.  
   
   
       2 . The apparatus of  claim 1  further comprising haemostatic or thrombostatic materials within the hollow section.  
   
   
       3 . The apparatus of  claim 1  further including an applicator screwing the screw into the blood vessel.  
   
   
       4 . The apparatus of  claim 1  wherein the screw is formed from resorbable, non-resorbable, or super elastic materials.  
   
   
       5 . A method of introducing materials into a blood vessel comprising screwing a screw device having a hollow section into a wall of a blood vessel, introducing a needle or catheter through the screw and into the blood vessel and introducing a material into the blood vessel through the needle or catheter.