HAPTIC FEEDBACK AND AUDIBLE OUTPUT SYRINGE
First Claim
1. A haptic and audible feedback syringe, comprising:
- a barrel member defining an interior volume therein for receiving fluid for dispensing from the syringe in a dispensing operation, the interior volume being bounded by interior wall surface with a protrusion element on the interior wall surface at a proximal portion of the barrel member; and
a plunger configured for slidable engagement in the interior volume of the barrel member, wherein the plunger comprises an array of deformable flexible resilient finger elements in sequential longitudinally spaced-apart arrangement along a length of the plunger, the finger elements extending outwardly, transverse to a longitudinal axis of the plunger;
wherein the protrusion element and finger elements are dimensionally sized and positioned in relation to one another so that advancement of the plunger in the barrel member interior volume from a retracted position successively engages the finger elements with the protrusion so that contact resistance is transmitted by the plunger to a syringe user as a haptic feedback in initial contact of the finger and protrusion, with elastic deformation of the finger by the protrusion during subsequent advancement of the plunger and production of an audible output upon disengagement of the finger from the protrusion during such advancement.
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Accused Products
Abstract
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.
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Citations
20 Claims
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1. A haptic and audible feedback syringe, comprising:
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a barrel member defining an interior volume therein for receiving fluid for dispensing from the syringe in a dispensing operation, the interior volume being bounded by interior wall surface with a protrusion element on the interior wall surface at a proximal portion of the barrel member; and a plunger configured for slidable engagement in the interior volume of the barrel member, wherein the plunger comprises an array of deformable flexible resilient finger elements in sequential longitudinally spaced-apart arrangement along a length of the plunger, the finger elements extending outwardly, transverse to a longitudinal axis of the plunger; wherein the protrusion element and finger elements are dimensionally sized and positioned in relation to one another so that advancement of the plunger in the barrel member interior volume from a retracted position successively engages the finger elements with the protrusion so that contact resistance is transmitted by the plunger to a syringe user as a haptic feedback in initial contact of the finger and protrusion, with elastic deformation of the finger by the protrusion during subsequent advancement of the plunger and production of an audible output upon disengagement of the finger from the protrusion during such advancement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification