US Patent 9919112 Active lubrication of penetrating devices

Penetrating systems and devices are described herein which include a penetrating portion with two concentric hollow cylinders joined at one end with a substantially ring-shaped end piece and at the other end with a hollow structure forming a fluid reservoir portion, the outer hollow cylinder including a plurality of pores in fluid communication with the fluid reservoir portion, the inner hollow cylinder in fluid communication with a second fluid reservoir portion, and the hollow structure formed at least in part from a deformable material.