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06-22-2011

Catheter sleeve assembly and one step injection molding process for making the same

An enhanced catheter introducer (10) and method for making the same are disclosed. The catheter (10) introduced may have a splittable sleeve assembly (16) configured to be inserted into a blood vessel with a cannula (24). The cannula (24) may then be removed, and a catheter (12) may be inserted into the sleeve assembly (16). The sleeve assembly (16) may be removed from the catheter (12) by pulling handles (34, 36) of the sleeve assembly (16) in different directions to split the sleeve assembly (16) into two pieces. The sleeve assembly (16) may have failure zones (50, 52) that enable the sleeve assembly (16) to be easily split; the failure zones (50, 52) may take the form of thinned regions (50, 52) running along the length of the sleeve assembly (16). The sleeve assembly (16) may be injection molded with a single step by injecting flows of molten plastic into a cavity of a mold (110) such that the flows converge into an even distribution about the circumference of the sleeve (30). The mold (110) may have a core pin designed to fit into the cavity. Through the use of the even distribution of flows, the core pin (140) may seat within the cavity in an untensioned manner.

Document: EP2335767A1
Click here for the full patent text at DEPATISnet [PDF]
Published patent application
Disclosure date: 10-02-2007
Publication date: 06-22-2011
Applicant: BECTON DICKINSON CO, US
Inventor: GAWRELUK CRAIG N, US ; CASTRO CYNTHIA A, US ; HARDING WESTON F, US ; JOHNSON STEVEN W, US ; PARRIS WAYNE M, US ; GUO LANTAO, US ; LARSEN MICHAEL C, US


© European Patent Office. This information was obtained from the espacenet of the European Patent Office. There is no guarantee of its correctness or curency. For additional information, please use the research at espacenet. It is possible to determine the current legal and procedural status of patents and utility patents/models at http://worldwide.espacenet.com/ kfree of charge.

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