Suprapubic catheter inserter

Claim 1

Apparatus for suprapubically inserting a catheter of size at least 16-French to within a person''s bladder, comprising: 1. a trocar of diameter approximately equal to the diameter of the catheter to be inserted for piercing the abdominal wall into the bladder, a. said trocar having a reduced diameter between ends, b. said trocar additionally presenting a four faced point on one end thereof, each face forming approximately a 60* angle from the horizontal, whereby said trocar may be inserted without cutting through the tissues in piercing into the bladder; 2. a cannula of length slightly less than that of the length of said trocar, and within which said trocar is removably received, said cannula having an inside diameter approximately equal to an end of said trocar, and having a slot through a wall along its entire length, whereby the slot serves to conduct fluid from within the person''s bladder along the length of said reduced diameter of said trocar within said cannula to discharge external the abdominal wall to indicate bladder penetration by the trocar, said cannula additionally having formed on one end overcovering said trocar adjacent the end presenting the four faced point, a bevel, whereby the cannula and trocar may be inserted within the tissue with minimum cutting, whereby, when said trocar and cannula are pierced through the abdominal bladder walls, said trocar may be withdrawn and said 16-French Foley-type catheter may be threaded through said cannula to the interior of the bladder, whereupon said cannula may be withdrawn from the bladder and removed along its slot from the catheter, and 3. means on an end of said trocar opposite the end on which four faced bevel is presented for controlling the insertion pressure thereupon.