Fluid injecting apparatus

Abstract

A fluid injecting apparatus includes: a cartridge portion which has a tube that transports a fluid, a plurality of fingers that press the tube, and a blocking member that blocks the tube; and a main body portion which has a cam that presses the plurality of fingers. When the cartridge portion is detached from the main body portion, the blocking member blocks the tube. When the cartridge portion is mounted to the main body portion, the cam presses at least one of the fingers such that the tube is blocked at the position of the pressed finger and the blocking of the tube by the blocking member is released.

1 - 10 . (canceled) 
     
     
         11 . A cartridge comprising:
 a tube that transports a fluid;   a plurality of fingers which abut on the tube, and   a blocking member that blocks the tube;   wherein the blocking member blocks the tube when the cartridge is detached from a main body of a fluid injecting apparatus.   
     
     
         12 . The cartridge according to  claim 11 ,
 wherein when the cartridge is mounted to the main body, the tube is blocked as a cam abuts on at least one of the fingers and the main body has the cam that displaces the plurality of fingers,   
     
     
         13 . The cartridge according to  claim 12 ,
 wherein when the cartridge is mounted to the main body, the blocking of the tube by the blocking member is released.   
     
     
         14 . The cartridge according to  claim 12 ,
 wherein the cartridge includes an impelling member that impels the blocking member toward the tube, and   when the cartridge is mounted to the main body, the engagement member of the main body is engaged so that the blocking member is in a state of not blocking the tube.   
     
     
         15 . The cartridge according to  claim 14 ,
 wherein, when the cartridge is detached from the main body, the engagement is released, and the blocking member blocks the tube by the impelling force of the impelling member.   
     
     
         16 . The cartridge according to  claim 11 , further comprising:
 a guide member which guides a movement of the blocking member in a direction toward the tube.   
     
     
         17 . The cartridge according to  claim 11 ,
 wherein the tube is made of an elastic material that is deformable.   
     
     
         18 . The cartridge according to  claim 11 ,
 wherein the blocking member is provided on a downstream side of the fingers in a transport direction of the fluid.   
     
     
         19 . The cartridge according to  claim 11 , further comprising:
 a needle member provided on a downstream side of the blocking member in the transport direction of the fluid; and   a storage portion which stores the fluid on an upstream side of the fingers.