Injection apparatus
First Claim
1. A needleless injector comprising:
- a needleless syringe installed in the injector for holding medication prior to injection, the syringe including an injection aperture at a forward end thereof;
a syringe plunger slidably mounted to a rear end of the syringe for forcing medication out of the syringe aperture;
a syringe plunger drive mechanism providing power to drive the syringe plunger and thereby force medication out of the syringe;
a drive control mechanism for controlling the operation of the drive mechanism, the drive control mechanism including a warning system which warns the user if any one of a plurality of pre-injection conditions is not met, an interlock system which prevents injection from taking place if any one of the plurality of pre-injection conditions are not met, and a sensing system which senses whether the plurality of pre-injection conditions is not met and conveys a signal to the warning and interlock systems informing as to whether all of the pre-injection conditions are met.
6 Assignments
0 Petitions
Accused Products
Abstract
The present invention typically is in the form of a needleless injector which includes the following components: (1) a needleless syringe installed in the injector for holding medication prior to injection, the syringe including an injection aperture at the forward end thereof; (2) a syringe plunger slidably mounted to the rear end of the syringe for forcing medication out the syringe aperture; (3) a syringe plunger drive mechanism providing power to drive the syringe plunger and thereby force medication out of the syringe; and (4) a syringe drive control mechanism for controlling the operation of the drive mechanism, the drive control mechanism including a warning system which warns the user if a pre-injection condition is not met, an interlock system which prevents injection from taking place if the pre-injection condition is not met, and a sensing system which senses whether the pre-injection condition is not met and conveys a signal to the warning and interlock systems informing as to whether the pre-injection condition is met.
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Citations
24 Claims
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1. A needleless injector comprising:
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a needleless syringe installed in the injector for holding medication prior to injection, the syringe including an injection aperture at a forward end thereof; a syringe plunger slidably mounted to a rear end of the syringe for forcing medication out of the syringe aperture; a syringe plunger drive mechanism providing power to drive the syringe plunger and thereby force medication out of the syringe; a drive control mechanism for controlling the operation of the drive mechanism, the drive control mechanism including a warning system which warns the user if any one of a plurality of pre-injection conditions is not met, an interlock system which prevents injection from taking place if any one of the plurality of pre-injection conditions are not met, and a sensing system which senses whether the plurality of pre-injection conditions is not met and conveys a signal to the warning and interlock systems informing as to whether all of the pre-injection conditions are met. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification