| US 7,569,044 B2 | ||
| Safety needle with positive flush | ||
| Daniel J. Triplett, Providence, Utah (US); Kevin Sheetz, Sandy, Utah (US); and Eddie K. Burnside, Morgan, Utah (US) | ||
| Assigned to C. R. Bard, Inc., Murray Hill, N.J. (US) | ||
| Filed on Aug. 04, 2006, as Appl. No. 11/499,284. | ||
| Application 11/499284 is a division of application No. 10/648969, filed on Aug. 27, 2003, granted, now 7,097,637. | ||
| Prior Publication US 2006/0271013 A1, Nov. 30, 2006 | ||
| Int. Cl. A61M 31/00 (2006.01); A61M 5/32 (2006.01) | ||
| U.S. Cl. 604—506 [604/513; 604/177; 604/192; 604/272] | 10 Claims |
| 1. A method of supplying fluid to a vascular access port, comprising:
providing a needle assembly including a needle, a positive flush mechanism, and a collapsible reservoir in fluid communication
with the needle, the collapsible reservoir having vertical surfaces that are allowed to collapse and configured to contain
a volume of fluid;
inserting the needle into a port;
delivering fluid to the port; and
removing the needle from the port, the positive flush mechanism collapsing the vertical surfaces of the reservoir, sending
a volume of fluid from the reservoir into the port as the needle is removed therefrom.
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