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Anchoring screw device

Inactive Publication Date: 2006-06-08
DE WINTER ERWIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006] The invention makes it possible to anchor a hollow structure, like a blood vessel, easily and quickly. More specifically, the ASD allows the physician dealing with medical intervention to make a stable and safe connection with a hollow structure in such a way that a catheter can be firmly positioned without any need for time consuming suturing.

Problems solved by technology

To prevent this, the catheter has to be fixated by suturing it to the wall of the vessel, but this is difficult and time consuming.

Method used

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  • Anchoring screw device
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  • Anchoring screw device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] 1 The ASD takes the form of a hollow screw, with an ending that is not—as in the regular screw—a point, but one full spiral winding (360 degrees). The end of the winding is sharp and round, i.e. it is non-cutting but it is capable of perforating the wall of the hollow tube-like structure in which it is screwed. The sharp, round point is bent inwardly and downwardly in an angle of 10 to 20 degrees (α) (see FIG. 1a), Alternatively, this sharp, round, non-cutting point may bend downwardly in an angle of 90 degrees (α) (see FIG. 1b). In this case, the end resembles a cork-screw, but the end is not situated in the middle of the final winding but on the periphery.

[0008] 2 The ASD the same as mentioned in 1 but with the body of the screw filled with thrombostatic or haemostatic material that functions as a sponge against leakage of the vessel after the catheter has been removed (see FIG. 2).

[0009] 3 The ASD with removable head. This device consists of two basic parts: first, the r...

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PUM

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Abstract

The present invention, the ASD, is a mechanical device for anchoring hollow tube-like structures in the human body, such as blood vessels and ureters. It facilates 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 nor limiting, and that modifications may be made by those skilled in the art, without departing from the scope of the invention.

Description

[0001] This invention relates to anchoring a SCREW-DEVICE onto a tube-like structure, for example a blood vessel, in such a way (1) that a needle or a catheter can be passed safely into the hollow structure and (2) that this needle or catheter can be positioned firmly in the vessel so that it cannot slip out or be displaced (i.e. be carried away by the fluid in the vessel). BACKGROUND ART [0002] In many interventional medical procedures we want to reach hollow structures like a blood vessel or a ureter. During these procedures we want to place a catheter or a needle into the hollow structure to have access to it, mostly for therapeutic reasons such as the administration of medication, the placing of a stent or a coil, dilatation and so one. Sometimes access to the aforementioned hollow structures is necessary for diagnostic purposes. [0003] The firm and stable fixation of a catheter into the wall of a hollow structure is essential since the catheter should under no circumstances fal...

Claims

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Application Information

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IPC IPC(8): A61B17/08A61B17/00A61B17/064A61B17/11A61B17/34A61M25/02
CPCA61B17/0057A61M2025/0286A61B17/11A61B17/1114A61B17/3415A61B17/3423A61B2017/00004A61B2017/00867A61B2017/0648A61B2017/0649A61B2017/1107A61B2017/1135A61B2017/1139A61B2017/3488A61M25/02A61M25/04A61M39/0208A61M39/04A61M39/06A61B17/064
Inventor DE WINTER, ERWIN
Owner DE WINTER ERWIN
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