Syringe fill system and method

摘要

A syringe fill system is described, which is useful for filling syringes for dental anesthetic applications. The system incorporates capability for “push-pull”, “pull-push”, “push-push”, and “pull-pull” modes of operation, for loading syringes with compositions comprising multiple fluid components. A syringe fillable by such syringe fill systems is described, providing haptic and audible feedback to a user, to aid in administering precise amounts of therapeutic compositions. Also disclosed are cassette assemblies for use in such syringe fill systems. Such cassette assemblies may be formed of plastic and elastomeric materials of construction, as disposable or single-use components of the syringe fill system.

主权项

1. A syringe fill system, comprising:
a syringe fill manifold including a manifold fill passage, an inlet for connection to a fluid supply assembly, and an outlet arranged to deliver fluid for syringe filling; a fluid supply assembly adapted to receive a fluid container so that the fluid container is positioned above the syringe fill manifold and is coupled to the inlet of the syringe fill manifold, with a valve at the inlet to control flow of fluid from the fluid container to the manifold fill passage; and a dispensing assembly including a dispensing selector member operatively linked to a driver member arranged to control dispensing of fluid from the fluid container in an amount selectable by the dispensing selector member, wherein the driver member is arranged for travel to exert pressure on the fluid container to dispense fluid therefrom to the syringe fill manifold in the amount selectable by the dispensing selector member, with the travel of the driver member limited by the operatively linked dispensing selector member to an extent corresponding to the amount selectable by the dispensing selector member, and with the dispensing selector member operatively resetting to a starting position after initiation of fluid dispensing, wherein the fluid supply assembly and the dispensing assembly are arranged in side-by-side relationship with one another.