Personal injector for liquid medicine
First Claim
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1. A personal injector for liquid medicine comprising:
- a housing having a distal end and a proximal end and including a needle-mounting part, a medicine container holder, and a connecting port to a computer;
a plunger arranged in said housing and adapted to be longitudinally moved between a starting point and a forward limit point within the housing;
an electric motor for driving said plunger;
a limit switch arranged at the forward limit point to stop the forward movement of said plunger;
a starting point sensor for detecting return of the plunger to the starting point; and
a substrate arranged in said housing and provided with a display, a mode-select switch, and a confirmation switch;
wherein the confirmation switch confirms an on-state of the starting point sensor, a set mode of the injector, and a notice of an administration of the liquid medicine, and wherein said plunger is adapted to be moved to the starting point by the reverse driving of the motor when said limit switch is turned on.
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Abstract
Personal injector for liquid medicine comprises a housing provided with needle-mounting part, medicine container holder and connecting port to a personal computer; plunger arranged in housing; electric motor for driving plunger; limit switch for limiting the forward movement of plunger; starting point sensor for detecting return of plunger to the starting point; and substrate having display and mode-select switch mounted thereon. The plunger is movable between the starting point and forward limit point. Limit switch is arranged at the forward limit point. When limit switch is turned on, motor drives plunger in reverse to move it to the starting point thereof.
11 Citations
19 Claims
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1. A personal injector for liquid medicine comprising:
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a housing having a distal end and a proximal end and including a needle-mounting part, a medicine container holder, and a connecting port to a computer;
a plunger arranged in said housing and adapted to be longitudinally moved between a starting point and a forward limit point within the housing;
an electric motor for driving said plunger;
a limit switch arranged at the forward limit point to stop the forward movement of said plunger;
a starting point sensor for detecting return of the plunger to the starting point; and
a substrate arranged in said housing and provided with a display, a mode-select switch, and a confirmation switch;
wherein the confirmation switch confirms an on-state of the starting point sensor, a set mode of the injector, and a notice of an administration of the liquid medicine, and wherein said plunger is adapted to be moved to the starting point by the reverse driving of the motor when said limit switch is turned on. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A personal injector for liquid medicine comprising:
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a housing having a distal end and a proximal end and including a needle-mounting part, a medicine container holder, and a connecting port to a computer;
a plunger arranged in said housing and adapted to be longitudinally moved between a starting point and a forward limit point within the housing;
an electric motor for driving said plunger;
a limit switch arranged at the forward limit point to stop the forward movement of said plunger;
a starting point sensor for detecting return of the plunger to the starting point; and
a substrate arranged in said housing and provided with a display and a mode-select switch;
wherein the mode select switch includes a mode switch M for displaying an additional dosage mode on the display when a desired dosage is judged to be greater than a residual content of the liquid medicine, and wherein said plunger is adapted to be moved to the starting point by the reverse driving of the motor when said limit switch is turned on. - View Dependent Claims (16, 17, 18, 19)
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Specification