Patent ID: 6024724
Filing Date: 2000-02-15
Classification: A61M

Abstract:
A liquid medicine injection device, comprising:a casing provided at one end thereof with a connection member for allowing a hanging loop to be connected to said casing, said connection member being holed at its center portion and forming a holder for holding a clip;a medicine container encased by said casing and adapted for temporarily containing liquid medicine and selectively and completely discharging the liquid medicine such that the liquid medicine does not remain in said medicine container, thereby injecting the liquid medicine toward a part of the human body;a first three way check valve connected to an outlet of said medicine container with a discharging hose connected to an outlet of said first three way check valve and adapted for selectively introducing the liquid medicine into said medicine container from outside or dispensing the liquid medicine from said medicine container through said discharging hose; andan injection amount controller connected to said discharging hose and adapted for controlling an amount of the liquid medicine injected into the part of the human body, said injection amount controller normally injecting a precisely primary controlled amount of the liquid medicine into the part of the human body at a steady rate and selectively and temporarily injecting confluent liquid medicine together with the precisely primary controlled amount of the liquid medicine into the part of the human body;said injection amount controller includinga housing,a three way filter member positioned in said housing and adapted for filtering impurities from the liquid medicine prior to dispensing the liquid medicine into two branched passages,first and second control pipes connected to said two branched passages, respectively, and feeding the liquid medicine while controlling the amount of the liquid medicine,a second three way check valve connected to said first control pipe, andconfluence means, connected to both said second control pipe and said second three way check valve, for temporarily receiving confluent liquid medicine through said second control pipe and selectively allowing the confluent liquid medicine to join the primary control led amount of the liquid medicine flowing through said first control pipe, thus increasing the amount of liquid medicine injected into the part of the human body.