Patent ID: 6969373

Claim:
A medical device for dispensing injectate, in a predetermined shape, size and concentration, the device comprising: an elongate member having a side wall defining a central lumen and having a distal end and a proximal end, the proximal end operably attachable to an injectate-providing catheter such that said catheter is in fluid communication with said lumen; a plurality of holes defined by said side wall and extending from said lumen to an exterior of said side wall; said plurality of holes having a preset distribution pattern, a preset diameter and a preset axis of orientation relative to an axis of said central lumen so as to form a predetermined specific shape of injectate adjacent said lumen, said preset distribution pattern being one straight line of holes parallel to a longitudinal axis of said lumen; said preset diameter of each of said plurality of holes progressively increasing in a direction towards said distal end of said elongated member; said preset axis of orientation being substantially perpendicular to said longitudinal axis of said lumen; said predetermined shape of injectate being a cylinder having a central axis which is substantially parallel to said longitudinal axis of said lumen; a sheath slideably disposed over said elongate member, said sheath slideable from a proximal position whereby an open distal end of said sheath is proximally displaced from said holes to a distal position whereby said distal end of said sheath is distally displaced from said plurality of holes, said sheath constructed and arranged to occlude said holes when positioned thereover.