Implantable lead with improved distal tip

• US 20030199952A1
• Filed: 04/22/2002
• Published: 10/23/2003
• Est. Priority Date: 04/22/2002
• Status: Abandoned Application

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Stolz, Brian T., Pardo, Xavier
• Application Number:
  US10/128,934
• Publication Number:
  US 20030199952A1
• Time in Patent Office: Days
• US Class Current: 607/117
• CPC Class Codes: A61M 25/0069 Tip not integral with tube
• CPC Class Codes: A61N 1/05 for implantation or insertion into the body, e.g. heart electrode A61N1/06 takes precedence

Abstract

An implantable lead for a medical device with an improved distal tip eliminates the need for a separate component distal tip that can become detached during implantation or use and seals distal tip conductor lumens to maintain lead integrity. The implantable lead comprises a comprising: a lead body having a proximal end and a distal end, at least two conductors, at least two contacts carried on the proximal end, at least two contacts carried on the distal end, and a distal tip. The lead body has a stylet lumen and at least two conductor lumens. The conductors are contained in the conductor lumens and extend from the lead proximal end to the distal end. The two contacts carried on the proximal end are electrically connected to the conductors. The distal tip is formed on the lead body distal end, and the distal tip seals the conductor lumens free from adhesive.

Claims

1. An implantable lead with improved distal tip, comprising:

a lead body having a proximal end, a distal end, a stylet lumen, and at least two conductor lumens;

at least two conductors contained in the conductor lumens extending from the lead proximal end to the distal end;

at least two contacts carried on the proximal end and electrically connected to the conductors;

at least two contact carried on the lead distal end and electrically connected to the conductors; and

,

a distal tip formed on the lead body distal end, the distal tip sealing the conductor lumens free from adhesive.

2. The implantable lead as in claim 1 wherein the distal tip reduces the opportunity for stylet penetration of the lead body distal end.

3. The implantable lead as in claim 1 wherein the distal tip is substantially symmetrical.

4. An implantable lead with improved distal tip, comprising:

a lead body having a proximal end, a distal end, a stylet lumen, and at least two conductor lumens;

at least two conductors contained in the conductor lumens extending from the lead proximal end to the distal end;

at least two contacts carried on the proximal end and electrically connected to the conductors;

at least two contact carried on the lead distal end and electrically connected to the conductors; and

,

means for sealing the distal end forming a distal tip that is free from adhesive or solvent.