Cannulated syringe
AssigneeBiomet Manufacturing, LLC
InventorMark V. VANDEWALLE
Life of this patent
Estimating the term…
Abstract
A set of instruments configured to deliver a therapy to a bone can include a cannulated syringe. The cannulated syringe can extend along a longitudinal axis between a proximal and a distal end. The cannulated syringe can have an inner tube and an outer tube that are interconnected at the distal end as a single fixed unit. A first cannulation can be formed along the longitudinal axis of the cannulated syringe within the inner tube and a second cannulation can be formed within an annular space between the inner and outer tubes. The outer tube can define an opening through a sidewall thereof. The cannulated syringe can be closed from fluid communication between the inner and outer tubes.
Claims15
A set of instruments configured to introduce an injectable material to a bone, the set of instruments comprising:
- a cannulated syringe extending along a longitudinal axis between a proximal and a distal end, the cannulated syringe having an inner tube and an outer tube that are fixedly interconnected at the distal end as a single unit, wherein a first cannulation is formed along the longitudinal axis of the cannulated syringe within the inner tube and a second cannulation is formed within an annular space between the inner and outer tubes, wherein the distal end of the cannulated syringe defines a first opening at an end of the inner tube and a second opening defined through a cylindrical sidewall of the outer tube, wherein the cannulated syringe is closed from fluid communication between the inner and outer tubes;
- and wherein a tubular piston surrounds the inner tube and is configured to slidably advance through the second cannulation in a direction toward the distal end to introduce all the injectable material from the cannulated syringe to the bone through the second opening.
A method of introducing an injectable material into a bone, the method comprising:
- locating the injectable material into an outer cannulation of a cannulated syringe;
- passing a guide wire extending from an IM canal of the bone at least partially through an inner cannulation of the cannulated syringe, wherein the inner and outer cannulations are fixed relative to each other and closed from fluid communication by an inner tube of the cannulated syringe;
- advancing the cannulated syringe along the guide wire until an opening provided in the cannulated syringe is located proximate to a delivery site;
- and
- advancing a plunger distally through the outer cannulation of the cannulated syringe thereby expelling the injectable material through the opening at the delivery site.
Dependencies are inferred from the claim text.