SIMPLE AUTOMATICALLY OPENING CLOSING TYPE URINATING DEVICE

摘要

A simple automatically opening/closing type urinating device (10) comprises a cylinder (2), a pressure sensitive plunger (3), an elastic member (4), a protection case (5) and a locking mechanism (6). The cylinder (2) is provided, respectively, with an injection port at a leading end, a cylinder flange (22) at a rear end and a plurality of extracting ports (23) in an outer circumferential side wall at an intermediate portion. The pressure sensitive plunger (3) is slidably inserted into the cylinder (2) and is provided, respectively, with a fluid-tight sealing portion (31) at a leading end, a plunger flange (32) at a rear end and a plurality of ribs (33) extending in a longitudinal direction and intersecting at an axial centre at an intermediate portion, serrated teeth (331) arranged at a predetermined pitch in a longitudinal direction being formed in at least one of the plurality of ribs (33). The elastic member (4) is adapted to connect the cylinder flange (22) provided at the rear end of the cylinder (2) to the plunger flange (33) provided at the rear end of the plunger (3) in such a manner that they are drawn to each other. The protection case (5) is secured to the rear end of the cylinder (2) and allows the axial movement of the pressure sensitive plunger (3). The locking mechanism (6) is engageable with and disengageable from the serrated teeth (331) of the rib (33) of the plunger (3) to thereby limit and release the axial movement of the plunger (3). The pressure of urine in the bladder (12) communicating with the injection port of the cylinder (2) is set at a predetermined value, and when the urine pressure reaches the predetermined value, all of the urine inside the bladder (12) is urinated from the extract port (23) of the cylinder into an external urine collecting bag (14).