Myocardial steroid releasing lead
March 26, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References H356 3568660 3680544 Stylet insertion guide and rotation control device for use with body implantable lead Body-implantable lead with protected, extendable tissue securing means Endocavitary cardiac stimulation probe Drug dispensing irrigatable electrode Drug dispensing body implantable lead Drug dispensing body implantable lead employing molecular sieves and methods of fabrication Method of making a drug dispensing body InventorAssigneeApplicationNo. 038564 filed on 03/26/1993US Classes:607/120, With drug or medicament-dispensing607/126, With anchor means607/127Axially-mounted helical typeExaminersPrimary: Cohen, Lee S.Assistant: Gilbert, Samuel Attorney, Agent or FirmInternational ClassA61N 001/05AbstractA lead for delivering electrical stimulation pulses to pace the cardiac muscle and for sensing electrical signals occurring in the cardiac muscle is disclosed which as a rigid helix disposed at the extreme distal end thereof which rigid helix may be operated by the implanting physical to extend the tip of the rigid helix from a stored position within the distal end of the lead to a deployed position projecting from the distal end of the lead. The rigid helix pierces and engages the heart tissue to anchor the lead in place within the heart. The tip of the rigid helix has an axial bore therein which is filled with a therapeutic medication such as a steroid or steroid-based drug for inhibiting inflammation and promoting tissue growth. After the tip of the helical screw is disposed in the heart tissue, the therapeutic medication will be slowly eluted into the surrounding tissue, thereby minimizing the trauma of implantation and assisting in the anchoring of the lead.Other References
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