Endoscopic applicator with reagent ball cutter
AssigneeBoston Scientific Scimed, Inc.
InventorsJoseph W. King, Gonzalo Jose Saenz Villalobos, John T. Favreau, Lauren S. Lydecker
Life of this patent
Estimating the term…
Abstract
A medical dispensing device which includes a catheter, an applicator tip at a distal end of the catheter, the catheter and the applicator tip defining a lumen having a longitudinal axis and a distal opening, a plunger in the lumen and movable along the longitudinal axis, and a plurality of elements in the lumen proximal to the distal opening and distal to the plunger, the plurality of elements stacked along the longitudinal axis for dispersement of one element at a time through the distal opening via a force applied by the plunger.
Claims20
A medical dispensing device, comprising:
- a catheter defining a lumen having a longitudinal axis and a distal opening;
- a plunger disposed in the lumen and movable along the longitudinal axis;
- a plurality of balls disposed in the lumen proximal to the distal opening and distal to the plunger, the plurality of balls being stacked along the longitudinal axis for dispersement, one ball at a time, through the distal opening via a force applied by the plunger;
- and
- one or more cutting elements disposed at the distal opening,
- wherein the one or more cutting elements is configured to cut an outer surface of each of the balls of the plurality of balls, and
- wherein the one or more cutting elements includes one or more blades.
A medical dispensing device, comprising:
- a catheter defining a lumen having a longitudinal axis and a distal opening;
- a plunger disposed in the lumen and movable along the longitudinal axis;
- a plurality of balls disposed in the lumen proximal to the distal opening and distal to the plunger, the plurality of balls being stacked along the longitudinal axis for dispersement, one ball at a time, through the distal opening via a force applied by the plunger;
- and
- one or more cutting elements disposed at the distal opening,
- wherein an outer surface of each of the balls of the plurality of balls includes a first material surrounding and containing therein a second material,
- wherein the one or more cutting elements is configured to cut the outer surface of each of the balls of the plurality of balls such that the second material is exposed as each of the balls of the plurality of balls is dispensed from the medical dispensing device, and
- wherein the one or more cutting elements includes one or more blades.
A method for delivering a reagent to tissue, the method comprising:
- pushing a stack of balls toward a distal opening of a catheter;
- advancing a distalmost ball of the stack of balls past a protrusion disposed in a lumen of the catheter;
- cutting, with one or more cutting elements, an outer surface of the distalmost ball, wherein the one or more cutting elements includes one or more blades;
- and
- releasing a reagent from an inner cavity of the distalmost ball.
Dependencies are inferred from the claim text.