Medicine injector and method of using same
First Claim
1. A medicine injector with a finger pump which comprises an ejection tube containing a liquid and a plurality of fingers adapted to move in a specified sequence to compress said tube, said medicine injector comprisinga first means for effectively varying the widths of said fingers by simultaneously compressing said tube with specified two or more of said plurality of fingers, anda second means for controlling the amount of liquid ejected out of said tube by said first means.
1 Assignment
0 Petitions
Accused Products
Abstract
A medicine injector includes a finger pump which comprises an injection tube containing a liquid medicine and a plurality of fingers adapted to move in a specified sequence to compress this tube. The widths of these fingers are effectively varied by simultaneously compressing the tube with specified two or more of these fingers. This has the effect of increasing the amount of liquid which can be ejected out of the tube and to minimize the effects of a backflow.
36 Citations
6 Claims
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1. A medicine injector with a finger pump which comprises an ejection tube containing a liquid and a plurality of fingers adapted to move in a specified sequence to compress said tube, said medicine injector comprising
a first means for effectively varying the widths of said fingers by simultaneously compressing said tube with specified two or more of said plurality of fingers, and a second means for controlling the amount of liquid ejected out of said tube by said first means.
- 3. A method of operating a medicine injector with a finger pump which comprises an ejection tube containing a liquid and a plurality of fingers adapted to move in a specified sequence to compress said tube, said method comprising the step of effectively varying the widths of said fingers by simultaneously compressing said tube with specified two or more of said plurality of fingers such that the amount of liquid ejected out of said tube is increased.
Specification