Method of making a drug dispensing body

• US 4,606,118 A
• Filed: 02/27/1985
• Issued: 08/19/1986
• Est. Priority Date: 02/27/1985
• Status: Expired due to Term

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Graf, James E., Cannon, Norbert H.
• Primary Examiner(s): Goldberg, Howard N.
• Assistant Examiner(s): Arbes, Carl J.
• Application Number:
  US06/706,214
• Time in Patent Office: 538 Days
• Field of Search: 29/825, 29/877, 128/789, 128/785, 128/786, 128/419 P, 204/224 R
• US Class Current: 29/825
• CPC Class Codes: A61N 1/0568 with drug delivery
• CPC Class Codes: A61N 1/306 Arrangements where at least part of the apparatus is introduced into the body
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing
• CPC Class Codes: Y10T 29/4921 with bonding

Abstract

A body implantable lead for the delivery of stimulation energy to a desired body site including a drug dispenser carried by the lead which retains a drug to be dispensed while allowing the dispensing of that drug at least adjacent the desired body stimulation site. The lead is provided with an electrode having a bore open to a drug storage chamber which contains an absorbent plug. The drug is loaded into the absorbent plug, prior to use, by soaking the electrode in a solution containing the drug.

Claims

1. A method of manufacturing a drug eluting electrode, comprising the ordered steps of:

fabricating an electrode body including a drug chamber open to the exterior of said electrode body;

inserting an absorbent plug into said drug chamber of said electrode;

packaging and sterilizing said electrode; and

after said inserting step and said packaging and sterilizing step, soaking said electrode body in a liquid solution of a desired drug until said absorbent plug is saturated with said drug.

2. A method of manufacturing a drug eluting electrode, comprising the ordered steps of:

fabricating an electrode body including a drug chamber and having a bore open to said drug chamber and open to the exterior of said electrode and having a porous surface on the exterior of said electrode adjacent said bore;

inserting an absorbent plug into said drug chamber of said electrode; and

after said inserting step, soaking said electrode body including said porous surface of said electrode body in a liquid solution of a desired drug until said absorbent plug is saturated with said drug.