Patent ID: 7785298
Filing Date: 2010-08-31
Classification: A61M

Abstract:
1. An injector for simultaneously co-injecting an object and an amount of fluid, the injector comprising: a syringe portion comprising a barrel, a plunger, and a push rod coaxially disposed about an axis, wherein the plunger includes a hollow channel that extends over the full length of the plunger and the push rod is movably disposed in the channel so that ends of the push rod can extend past respective ends of the channel, the push rod and the plunger being movable along the axis independently of each other, the barrel holding the amount of fluid in a space created by movement of the plunger along the axis; a needle portion comprising a needle for penetrating tissue and forming an opening in the tissue, the needle portion being configured to hold the object and allow the object to be ejected from a distal end of the needle, wherein the needle portion is separably coupled with the syringe portion, wherein the push rod is configured to move distally along the axis to engage the object held in the needle portion and to eject the object from the distal end of the needle, and wherein the plunger is configured to move distally along the axis to eject the amount of fluid out of the distal end of the needle past the opening formed in the tissue by the needle.