Mechanical syringe accessory
AssigneeAllergan, Inc.
InventorsJustin J. Schwab, Edwin J. Kayda, Zachary Dominguez, Christopher Mudd
Life of this patent
Estimating the term…
Abstract
Described herein are syringe accessories that can be attached to standard syringes. These accessories utilize one or more mechanisms that can provide at least one additional sensory feedback to the user when performing an aliquot or dosed injection. In other embodiments, the accessories can prevent overdosing.
Claims24
An accessory for a syringe comprising:
- a finger portion configured to attach to the body of the syringe wherein the finger portion includes a track guide including a lever arm;
- a track configured to insert through the track guide including valleys separated by a distance;
- a plunger interface configured to attach the track to a plunger of the syringe;
- wherein the distance corresponds to a pre-determined dose of a substance housed in the syringe.
An accessory for a syringe comprising:
- a shaft including features that are configured to define at least one dose increment and having a horizontal degree of freedom,
- a rotating traveler including a horizontal degree of freedom and a vertical degree of freedom;
- and
- a fixed ratchet including valleys configured to engage the rotating traveler, and
- wherein the fixed ratchet does not interact with the rotating traveler, and wherein the shaft is at least partially attached to a plunger of the syringe.
A method of injecting an aliquot dose of a substance using a standard syringe, the method comprising:
- attaching an accessory including a track guide to a body portion of the syringe;
- inserting a track into the track guide until a portion of the track engages with a plunger head associated with the syringe;
- and
- applying a force to the plunger head thereby advancing the tracks through the track guide;
- wherein the advancing causes at least one audible cue that represents an aliquot dose.
The method of claim 18, wherein the at least one audible cue is a lever arm associated with the track guide snapping over a peak in the track.
A method of injecting an aliquot dose of a substance, the method comprising:
- applying an injection force to a shaft including at least one spiral including at least one intermittent distance between at least one first stop and at least one second stop, wherein the injection force drives the shaft axially through a rotating traveler the intermittent distance, and wherein the intermittent distance represents an aliquot dose.
Dependencies are inferred from the claim text.