Dosage limiting device
OwnerPaul Meolainventor
Life of this patent
Estimating the term…
Abstract
An adjustable dosage limiting device includes a member that interfaces to a plunger flange of a syringe and a barrel loop that slides along a barrel of the syringe. A locking mechanism, when engaged, fixes a distance between the member that interfaces to a plunger flange and the barrel loop, and hence, locks the barrel loop in place with respect to the plunger flange. Once locked in place, the adjustable dosage limiting device limits a dosage provided by the syringe based upon a distance between the member that interfaces to a plunger flange and the barrel loop as set by the locking mechanism.
Claims20
An adjustable dosage limiting device comprising:
- an elongated connecting member;
- a plunger receiving head for capturing a plunger flange of a plunger of a syringe, the plunger receiving head is fixed to first end of the elongated connecting member;
- a slidable member slidably interfaced to the elongated connecting member, the slidable member having a lock, the lock, when engaged, holding the slidable member at a pre-set location on the elongated connecting member, the lock cannot be defeated without a use of a tool;
- and
- a barrel loop fixed to the slidable member, the barrel loop for freely sliding across a barrel of the syringe;
- whereas the adjustable dosage limiting device limits a dosage provided by the syringe based upon a distance between the plunger receiving head and the barrel loop as during extraction of the plunger, the barrel loop abuts a barrel flange of the syringe, thereby limiting extraction of the plunger of the syringe.
A method of limiting a dosage provided by a syringe, the method comprising:
- first, installing the adjustable dosage limiting device on the syringe by:
- installing a plunger receiving head of the adjustable dosage limiting device on a plunger flange of the syringe, the plunger receiving head at a first end of an elongated connecting member;
- installing a barrel loop of the adjustable dosage limiting device around a barrel of the syringe and onto the elongated connecting member;
- second, pushing the plunger flange of the syringe until the plunger of the syringe is fully within the hollow barrel of the syringe;
- third, moving the barrel loop along the elongated connecting member until a desired preset dosage limit is set;
- and
- fourth, activating a locking mechanism to fix the barrel loop in position on the elongated connecting member at the desired preset dosage limit after which, the barrel loop is locked to the elongated connecting member and cannot be removed manually.
An adjustable dosage limiting device comprising:
- means for attaching to a plunger flange of a syringe;
- means for slidably interfacing to a barrel of the syringe, the means for slidably interfacing to the barrel of the syringe adjustably interfaced to the means for attaching to the plunger flange;
- means for fixing a distance between the means for slidably interfacing to the barrel of the syringe and the means for attaching to the plunger flange such that the distance defines a dosage that will be delivered by the syringe.
Dependencies are inferred from the claim text.