Patent ID: 9539139
Date: 2017-01-10
CPC Classifications: A61F,A61J,A61M

Claim:
1. An apparatus, comprising: a housing configured to receive a portion of a medicament container; a hub coupled to the housing, the hub defining a passageway configured to receive a puncture member therethrough, the hub having a convex distal end surface, the distal end surface of the hub configured to contact a target surface of a target tissue when a substance is conveyed through the puncture member; and an actuation rod at least partially disposed within the medicament container, the medicament container the actuation rod, and the puncture member collectively configured such that (1) a distal end portion of the actuation rod moves within the medicament container in response to a force on the actuation rod when a distal end portion of the puncture member is disposed within a first region of the target tissue, and (2) movement of the distal end portion of the actuation rod within the medicament container in response to the force on the actuation rod is limited when the distal end portion of the puncture member is disposed within a second region of the target tissue, the force having a magnitude less than a threshold value.