| US 7,497,850 B2 | ||
| Medical device needle receiving port | ||
| Edgardo C. Halili, Santa Clarita, Calif. (US) | ||
| Assigned to Infusion Systems, LLC, Sylmar, Calif. (US) | ||
| Filed on Feb. 28, 2005, as Appl. No. 11/69,296. | ||
| Claims priority of provisional application 60/549288, filed on Mar. 02, 2004. | ||
| Prior Publication US 2005/0197636 A1, Sep. 08, 2005 | ||
| Int. Cl. A61M 31/00 (2006.01) | ||
| U.S. Cl. 604—288.01 | 11 Claims |
| 1. An apparatus, comprising:
a hypodermic needle having a cannula defining an outer diameter D1, a pointed end with a pointed distal tip defining an outer diameter D2 and a beveled surface extending from the pointed distal tip to the cannula and defining an axial length L1 with an outer diameter that diminishes from the cannula outer diameter D1 to the pointed distal tip outer diameter D2; and
an implantable port including
a port body,
a septum associated with the port body, and
a needle stop member associated with the port body including a stop hole with an inlet defining a diameter D3 that is less than the outer diameter D1 of the beveled surface and is greater than the diameter D2 of the pointed distal tip and an obstruction-free axial length L2 that is greater than the axial length L1 of the beveled surface, whereby said beveled surface will engage said needle stop member at said hole to stop axial penetration
by said needle without engaging said pointed distal tip.
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