Injection molded cannula system
AssigneeRoche Diabetes Care, Inc.
InventorsChristian Freitag, Mads Bjoern Rasmussen
Life of this patent
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Abstract
Disclosed herein is a cannula system including a soft cannula 10 and a cannula holder for holding the soft cannula. The cannula holder has a compressor and a body. The body contains a mounting structure and a cavity for holding a septum. The soft cannula is threaded on the mounting structure. Furthermore, the compressor circumferentially surrounds the mounting structure and at least parts of the body. The compressor provides an internal material tension for exerting a compression force on the soft cannula and the mounting structure.
Claims19
A method for manufacturing a cannula system, the method comprising:
- providing a body having a mounting structure, the body being mounted onto a molding core pin, wherein the body is optionally provided by injection molding onto the molding core pin;
- positioning a soft cannula on the mounting structure;
- injection molding a compressor on the soft cannula and at least part of the body, wherein the compressor circumferentially surrounds the mounting structure, at least part of the soft cannula and at least part of the body;
- cooling the compressor and thereby providing an internal material tension of the compressor, and
- removing the molding core pin.
A cannula system, comprising:
- a soft cannula;
- a cannula holder configured to hold the soft cannula, the cannula holder comprising a compressor and a body;
- the body having a mounting structure and a cavity for holding a septum, wherein the soft cannula is positioned on the mounting structure;
- and
- the compressor circumferentially surrounding the mounting structure and at least part of the body, wherein the compressor provides an internal material tension for exerting a compression force on the soft cannula and the mounting structure.
Dependencies are inferred from the claim text.