PURPOSE: To enable the stable injection of a chemical liquid without changing the flow velocity of the chemical liquid to be injected into a patient's body throughout the entire period of chemical liquid injection by adopting the constitution to connect a constant load spring for shrinking a freely shrinkable liquid chemical housing body to this housing body.
CONSTITUTION: This implement for continuous injection of the liquid chemical has the liquid chemical housing body 1 which is provided with a liquid chemical injection port 2 at the front end and is made freely shrinkable and the constant load spring 6 which is adapted to shrink this housing body. One end of the constant load spring 6 is connected to the rear part of the liquid chemical housing body 1 and the other end of the constant load spring 6 is connected to the front part. Further, the constant load spring 6 is wound around a pulley 7 and is connected to the flange part 1a at the rear end of the liquid chemical housing body 1. The front end of the constant load spring 6 is connected to the flange part 1b at the front end of the liquid chemical housing body 1. As a result, the flow velocity of the chemical liquid to be injected into the patient's body does not change throughout the entire period of the chemical liquid injection and the stable injection of the chemical liquid is executed. The operation to pack the chemical liquid is facilitated.
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HATANAKA YASUYO
NAGANO ATSUSHI
MIMURA SOGO KENKYUSHO KK