Delivery system for delivering a drug depot to a target site under image guidance and methods and uses of same
AssigneeKieran P. Murphy
InventorKieran P. Murphy
Life of this patent
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Abstract
A delivery system for delivering a drug depot to a site within a patient, the system comprising: a cannula; a delivery stylet configured and dimensioned to be receivable by and slidable forwardly and backwardly within the cannula including to a position wherein a distal portion of the stylet protrudes beyond the distal end of the cannula; a drug depot retainable by the stylet at the distal end of the stylet, the drug depot being visualizable by a diagnostic imaging beam or modality; and an actuator for ejecting the drug depot from the stylet to a site within the body using fluid pressure. Also disclosed are methods using, and uses of, the delivery system, including for treating scoliosis.
Claims15
A method of delivering a drug depot to a site within a patient, the method comprising:
- a. inserting a cannula with a solid stylet received into a target tissue of the patient under image guidance;
- b. retaining the drug depot at a distal end of a delivery stylet such that initially only a first portion of the drug depot is positioned inside the delivery stylet and a second portion of the drug depot protrudes from the distal end of the delivery stylet and fluidic pressure is required to subsequently eject the first portion of the drug depot from the delivery stylet;
- c. removing the solid stylet from the cannula and inserting the delivery stylet into the cannula until a distal portion of the delivery stylet emerges from a distal end of the cannula;
- d. positioning the drug depot under image guidance by moving the delivery stylet forwards and/or backwards until the drug depot is positioned at a desired location;
- and
- e. actuating an actuator to expel the drug depot from the delivery stylet.
A method of delivering a drug depot to a site within a patient, the method comprising:
- a. inserting a hollow cannula into a target tissue of the patient under image guidance;
- b. retaining the drug depot at a distal end of the a delivery stylet such that initially only a first portion of the drug depot is positioned inside the delivery stylet and a second portion of the drug depot protrudes from the distal end of the delivery stylet and fluidic pressure is required to subsequently eject the first portion of the drug depot from the delivery stylet;
- c. inserting the delivery stylet into the hollow cannula until the distal end of the delivery stylet emerges from a distal end of the hollow cannula;
- d. positioning the drug depot under image guidance by sliding the delivery stylet within the hollow cannula until the drug depot is positioned at a desired location;
- and
- e. actuating an actuator to expel the first portion of the drug depot from the distal end of delivery stylet, thereby depositing the drug depot at the desired location.
Dependencies are inferred from the claim text.