Medical device for the reconstruction of parastomal hernias and/or for the prevention of their development

Abstract

The invention relates to a medical device for the reconstruction of parastomal hernias and / or for the prevention of their development, which has sheets (1, 2) made from plastic compatible with living tissue placed in the abdominal wall (6) connected via a linking- separating element and running separated at a distance (a) from each other. The linking-separating element is formed by a tube member (3) open at both ends forming a channel to make it possible to extract the large intestine (7) out of the abdominal cavity (9) through the abdominal wall (6). At least the tube member (3) is made from an adhesive plastic suitable for creating an organic connection with live tissue. The essence of the device is that the musculo-aponeurotic layer (6a) of the abdominal wall (6) in the vicinity of the tube member (3) is fixed to the sheets (1, 2) via fixing elements (4).

Description

technical field [0001] The subject of the invention relates to a medical device for the reconstruction of a parastomal hernia and / or for the prevention of its development. The subject of the invention is also a method for applying the device. Background technique [0002] In the case of certain diseases (mainly colorectal cancer) the loop of the large intestine is brought out through the abdominal wall during surgical intervention and the stoma located on the abdominal wall is then secured to the skin with sutures around it. A detachable and replaceable ostomy device that can be attached to the abdominal wall, which seals the enterostomy from the environment and retains faeces in a known manner, its reliable positioning and wear resistance are decisive for the patient's reintegration into society influences. [0003] Partly for anatomical reasons and partly due to procedural errors in 15-30% of cases, a hernia - a so-called parastomal hernia develops around a stoma located...

AI Technical Summary

Problems solved by technology

[0011] With regard to the solution that forms the subject of the Hungarian patent specification detailed above, the problem is that the longitudinal grooves (accommodating the arteries containing the blood supply to the stoma to be pulled through) formed in the side walls of the above-mentioned tubes - channels - mesentery) may cause the omentum or bowel loops to fall forward or slide out early after the procedure

There is also a problem that the inner surface of the tubing made of plastic mesh and incorporating the sheets (which is in contact with the surface of the stoma) may cause scar adhesions between the bowel wall and the mesh material, which can be very strong , and sometimes may even penetrate into the inner lining of the intestinal wall

In addition to the fact that severe scarring may limit the wave-like motion of the bowel that facilitates expulsion of the bowel's contents and may also introduce the risk of the development of bowel perforation, in the case of a reoperation, it may be critical in a non-tissue-damaging condition Detached tissue under detrimental effects

[0012] Finally, with this solution, the problem is also that the outer and inner plastic nets at a certain distance from each other twist from time to time the cylindrical tubing that connects them around the longitudinal axis, and the intestine follows this twisting movement, if eventually the device and the intestine The tract becomes fixed—even in a slightly twisted position—which may result in minor or major intestinal strictures

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