Patent ID: 9545481
Date: 2017-01-17
CPC Classifications: A61M

Claim:
1. A syringe comprising: a syringe body for storing and dispensing a substance contained within the syringe body; a plunger arranged partially within the syringe body such that translational motion of the plunger in a proximal direction causes the substance to be dispensed from the syringe body; and a dosage limiting sleeve coupled to an exterior surface of the syringe body and extending in a distal direction beyond a distal end of the syringe body, wherein a distal end of the dosage limiting sleeve is configured to interact with the plunger so as to prevent the translational motion of the plunger in the proximal direction beyond a predetermined point, and wherein the dosage limiting sleeve does not limit translational motion of the plunger in a distal direction as an interior surface of the dosage limiting sleeve comprises a first plurality of threads and the exterior surface of the syringe body comprises a second plurality of threads to be engaged with the first plurality of threads to provide depth adjustment of the dosage limiting sleeve and to couple the syringe body with the dosage limiting sleeve, wherein the syringe body or the dosage limiting sleeve comprises non-volumetric graduations keyed to an identity and concentration of the substance such that the graduations indicate an appropriate dosage of the substance by patient weight.