The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2001
Filed:
Aug. 26, 1998
Gerhard Rakhorst, Groningen, NL;
Gijsbertus Jacob Verkerke, Haren, NL;
Günter Brinckmann, Wilhelmshaven, DE;
Rijksuniversiteit Groningen, , NL;
Abstract
For manufacturing a catheter tubing (,), a container (,) provided with a passage (,), a mandrel (,) sealing off that passage (,) when inserted into said passage and a solution (,) containing a dissolved plastic in the container (,) up to a level above the passage (,) are provided. Repeatedly, the mandrel (,) is inserted into the passage and at least a section of the mandrel (,) is passed through the passage (,) and the solution (,) in an upward direction. When sufficient plastic material has adhered to the mandrel (,), the catheter tubing (,) is removed from the mandrel (,). Thus, catheters having thin, smooth walls of a uniform thickness can be manufactured without expensive machinery and tools. A system for carrying out the method and particular catheters obtainable by that method are also described.