Abstract: A device for locating and marking the optimum position of the center of a hole for receiving a stoma in a hernia support, said device being in the form of work piece provided with a pattern for identifying and recording the optimum position for placing of the center of the hole provides a simple device and method for an easy determination and marking of the site for a customized hole in standard hernia trousers.

Abstract: The invention relates to an improved linear microdialysis probe comprising a continuous length of flexible tubing (1) having at least one window (4) formed therein, said window covering at least one part of the circumference of the tubing, while the remaining part forms at least one unbroken connection between a first end of said tubing and a second end of said tubing, said ends adapted to be attached to an inlet for perfusion liquid and the other end forming an outlet for the dialysate, said at least one window (4) exposing a tubular semipermeable membrane (2).

Abstract: An ostomy siting device for determining and marking the position of a possible stoma comprising a stoma simulating first element and a second element simulating an adhesive wafer of an ostomy appliance and an optionally separately detachable collecting bag, said ostomy siting device having on the proximal side an adhesive surface for removable adhering to the abdominal skin of an ostomate to be provided a readily repositionable and reusable system for simulating the placement and physical configuration of the stoma and the collection system and for marking the optimum position of the stoma to be.