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US 8,475,699 B2Granted
Method for rounding edges of openings in a tubular body and a product thereof
AssigneeColoplast A/S
InventorEgon Triel
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Abstract
A method for rounding at least a part of an edge of an opening in a tubular body formed of thermo-formable material, wherein a mandrel is brought into contact with the edge and the mandrel has a temperature that allows it to permanently deform the material of the tubular body and a product thereof.
Claims11
A method for rounding a hole in a catheter, the method comprising:
- providing a tubular body having an opening formed in the tubular body;
- heating a mandrel to provide a heated mandrel;
- inserting the heated mandrel into the opening formed in the tubular body;
- contacting an external edge of the opening formed in the tubular body with the heated mandrel;
- and
- deforming material at the external edge of the opening of the tubular body with the heated mandrel and providing a substantially rounded external edge and leaving an internal edge of the opening unchanged relative to an inner surface of the tubular body.
3 more elements
Dependencies are inferred from the claim text.