| US 7,556,615 B2 | ||
| Microneedle-based pen device for drug delivery and method for using same | ||
| Ronald J. Pettis, Cary, N.C. (US); Frank E. Martin, Durham, N.C. (US); and Scott A. Kaestner, Durham, N.C. (US) | ||
| Assigned to Becton, Dickinson and Company, Franklin Lakes, N.J. (US) | ||
| Filed on Sep. 11, 2002, as Appl. No. 10/238,958. | ||
| Claims priority of provisional application 60/318913, filed on Sep. 12, 2001. | ||
| Claims priority of provisional application 60/318886, filed on Sep. 12, 2001. | ||
| Prior Publication US 2003/0050602 A1, Mar. 13, 2003 | ||
| Int. Cl. A61M 5/00 (2006.01) | ||
| U.S. Cl. 604—117 | 26 Claims |
| 1. A microneedle delivery device, comprising:
a hub housing having a proximate end and a distal end with a skin contact surface, said proximate end having a coupling member
for removably coupling said device to a supply reservoir containing a substance to be delivered to a patient;
a fluid communication member located at said proximate end of said housing and having a length sufficient to communicate with
said supply reservoir, said fluid communication member mounted to said housing so as to be removable therewith, said fluid
communication member terminating with a piercing member;
a microneedle extending from said skin contact surface and having a length sufficient to penetrate the skin of a patient to
a selected depth, said microneedle being separate, and spaced, from said fluid communication member, wherein a fluid flow
path is defined between said supply reservoir and said selected depth, said microneedle defining the narrowmost portion of
said fluid flow path; and
a depth limiting member extending from said skin contact surface for limiting a depth of penetration of said microneedle into
said skin.
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