US 5,697,916 A · Hypodermic dosage measuring device

Abstract

A hypodermic dosage measuring device to be utilized with a hypodermic syringe and a conventional drug vial, the dosage measuring device including a vial holding portion adapted to hold a head of the drug vial non-slidably therein, a syringe holding portion adapted to hold the syringe in a non-slidable position with a needle of the syringe disposed within the drug vial, and a dose adjustment portion, the dose adjustment portion including an elongate plunger holder and gear element, the plunger holder and gear element each including a plurality of teeth thereon such that movement of the gear element results in an elongate track segment of the plunger holder sliding in a longitudinal direction parallel to a length of the syringe. The plunger holder further including a plunger engagement segment extending perpendicularly from the proximal end of the track segment, the plunger engagement section being adapted to engage a plunger of the syringe such that longitudinal movement of the plunger holder results in corresponding longitudinal movement of the plunger of the syringe relative to a dosage holding area of the syringe. The precise dosage measure is indicated by a digital display and/or an audible indicator. A bubble detector may be provided with the hypodermic dosage measuring device, with or without the digital display and/or an audible indicator.

Claims30

Dependent claims

A hypodermic dosage measuring device to be utilized with a hypodermic syringe of the type including a needle, a dosage holding area, a flanged handle portion, and a plunger element slidably disposed therein, and a conventional drug vial having a body, a neck, and a head portion through which the needle is inserted into the body of the vial;

said hypodermic dosage measuring device comprising:
a vial holding portion connected to a syringe holding portion by a dose adjustment portion;
said vial holding portion comprising a recess adapted to hold the head of the drug vial non-slidably therein;
said syringe holding portion including at least one channel member for receiving a side of the flanged handle portion of the syringe non-slidably therein, and being sufficiently spaced from said vial holding portion such that the needle of the syringe is disposed within the vial upon the vial being positioned in said vial holding portion and the handle portion of the syringe being positioned in said channel member;
said dosage adjustment portion further including a plunger engagement segment, for engaging a plunger of the syringe such that longitudinal movement of said dosage adjustment portion results in corresponding longitudinal movement of the plunger of the syringe, and a gear portion;
a handle extending from and fixed to a gear element, wherein said gear element engages said gear portion to move said dosage adjustment portion in said longitudinal direction upon movement of said handle;
and
a digital display on said measuring device to visually and digitally indicate an amount of drug drawn into the syringe based on a position of said handle relative to said syringe holding portion.

5 more elements

said hypodermic dosage measuring device comprising:
a vial holding portion connected to a syringe holding portion by a dose adjustment portion;
said vial holding portion comprising a recess adapted to hold the head of the drug vial non-slidably therein;
said syringe holding portion including at least one channel member for receiving a side of the flanged handle portion of the syringe non-slidably therein, and being sufficiently spaced from said vial holding portion such that the needle of the syringe is disposed within the vial upon the vial being positioned in said vial holding portion and the handle portion of the syringe being positioned in said channel member;
said dosage adjustment portion further including a plunger engagement segment, for engaging a plunger of the syringe such that longitudinal movement of said dosage adjustment portion results in corresponding longitudinal movement of the plunger of the syringe, and a gear portion;
a handle extending from and fixed to a gear element, wherein said gear element engages said gear portion to move said dosage adjustment portion in said longitudinal direction upon movement of said handle;
and
an audible indicator on said measuring device to audibly indicate an amount of drug drawn into the syringe based on a position of said handle relative to said syringe holding portion.

5 more elements

said hypodermic dosage measuring device comprising:
a vial holding portion connected to a syringe holding portion by a dose adjustment portion;
said vial holding portion comprising a recess adapted to hold the head of the drug vial non-slidably therein;
said syringe holding portion including at least one channel member for receiving a side of the flanged handle portion of the syringe non-slidably therein, and being sufficiently spaced from said vial holding portion such that the needle of the syringe is disposed within the vial upon the vial being positioned in said vial holding portion and the handle portion of the syringe being positioned in said channel member;
said dosage adjustment portion further including a plunger engagement segment, for engaging a plunger of the syringe such that longitudinal movement of said dosage adjustment portion results in corresponding longitudinal movement of the plunger of the syringe, and a gear portion;
a handle extending from and fixed to a gear element, wherein said gear element engages said gear portion to move said dosage adjustment portion in said longitudinal direction upon movement of said handle;
and
a bubble detector on said measuring device to detect a presence of air bubbles in said amount of drug drawn into the syringe.

5 more elements

Dependencies are inferred from the claim text.

Hypodermic dosage measuring device

Life of this patent

Hypodermic dosage measuring device

Life of this patent

Abstract

Claims30