Patent ID: 9636253
Date: 2017-05-02
CPC Classifications: A61F,A61J,A61M

Claim:
1. A method, comprising: inserting a distal end portion of a puncture member of a medical injector into a target tissue to define a delivery passageway within the target tissue and such that a distal end surface of a hub of the medical injector is in contact with a target surface of the target tissue; exerting a force on an actuation rod of the medical injector when the distal end surface of the hub is in contact with the target surface, the force having a magnitude of less than a threshold value, the force produces movement within the medical injector of both an adjustment member and the puncture member when the distal end portion of the puncture member is disposed within a first region of the target tissue, the puncture member being fixedly coupled to the adjustment member, movement of both the adjustment member and the puncture member within the medical injector being limited when the distal end portion of the puncture member is disposed within a second region of the target tissue; and conveying, in response to the exerting, a substance from the medicament container into the target tissue via the puncture member when the distal end portion of the puncture member is disposed within the second region of the target tissue.