Implantable leads with a conductor coil having two or more sections

Patent metadata

Field	Value
Publication number	US-2016365692-A1
Application number	US-201615166746-A
Country	US
Kind code	A1
Filing date	May 27, 2016
Priority date	Dec 30, 2009
Publication date	Dec 15, 2016
Grant date	—

Abstract

Various coiled conductors having two or more sections and methods and devices for constructing such conductors are disclosed. The various embodiments of coiled conductors and related methods include two or more sections that can have different mechanical, structural, and/or electrical characteristics.

First claim

We claim:

1 . A method of constructing a coil conductor of an implantable medical lead, the coil conductor having at least a proximal segment and a distal segment, the method comprising:
winding a first number of at least one filars into a coiled configuration over a first section of a mandrel to form the proximal segment, wherein the first section comprises a first outer diameter, and a first pitch, the proximal segment ending at a transition point and a coating disposed on the at least one filars such at the at least one filars have a coated configuration while the proximal segment is wound; removing the coating from a section of the at least one filars; and winding a second number of the at least one filars from the transition point into a coiled configuration over a second section of the mandrel to form the distal segment, the second section comprising a second outer diameter, and a second pitch, the first pitch and the first inner diameter are different from the second pitch and the second outer diameter, wherein the coating is removed from the at least one filars after the winding of the proximal segment along a section of the at least one filars that will form the distal segment such that the at least one filars is coated along the proximal segment and uncoated along the distal segment.

2 . The method of claim 1 , wherein removing the coating comprises removing the coating with a laser.

3 . The method of claim 1 , further comprising removing one of the first number of filars at the transition point before winding the second number of filars, whereby the second number of filars is less than the first number of filars.

4 . The method of claim 1 , further comprising adding a filar at the transition point before winding the second number of filars, whereby the second number of filars is greater than the first number of filars.

5 . The method of claim 1 , wherein the second outer diameter of the mandrel is smaller than the first outer diameter of the mandrel.

6 . The method of claim 1 , wherein the first pitch is less than the second pitch.

7 . The method of claim 1 , wherein and the coating is removed from the section of the at least one filars while the distal segment is being wound.

8 . The method of claim 1 , wherein the coating is removed from the section of the at least one filars after the distal segment is wound.

9 . The method of claim 1 , further comprising winding a third number of the at least one filars beginning at a second transition point into a coiled configuration over a third section of the mandrel to form a third segment, wherein the third section comprises a third outer diameter and the third segment comprises the third number of at least one filars, a third pitch, and a third inner diameter, wherein at least one of the second number of filars, the second pitch, the second inner diameter, and the second outer diameter is different from at least one of the third number of filars, the third pitch, the third inner diameter, and the third outer diameter.

10 . A method of constructing a coil conductor of an implantable medical lead, the coil conductor having at least a proximal segment and a distal segment, the method comprising:
winding at least one filars into a coiled configuration over a first section of a mandrel to form the proximal segment, wherein the proximal segment comprises a first outer diameter and a first pitch, the proximal segment ending at a transition point, the at least one filars having a coating thereon during the winding of the proximal segment; and winding the at least one filars from the transition point into a coiled configuration over a second section of the mandrel to form the distal segment, the distal segment comprising a second outer diameter and a second pitch, the second outer diameter is less than the first outer diameter, the first pitch is less than the second pitch.

11 . The method of claim 10 , further comprising removing the coating from a section of the at least one filars after the winding of the proximal segment, wherein the distal segment is wound from the section such that the at least one filars are uncoated along the distal segment and are coated along the proximal segment.

12 . The method of claim 11 , wherein and the coating is removed from the section of the at least one filars while the distal segment is being wound.

13 . The method of claim 11 , wherein the coating is removed from the section of the at least one filars after the distal segment is wound.

14 . The method of claim 11 , wherein removing the coating comprises removing the coating with a laser.

15 . The method of claim 10 , wherein:
winding the proximal segment comprises winding the proximal segment with a plurality of filars, including the at least one filars, and the method further comprises removing at least one of the plurality of filars after winding the proximal segment but before winding the distal segment such that the proximal segment comprises more filars than the distal segment.

16 . The method of claim 10 , further comprising adding at least one more filar to the at least one filars after winding the proximal segment but before winding the distal segment such that the distal segment comprises more filars than the proximal segment.

Assignees

• Cardiac Pacemakers Inc

Inventors

• Haarer Joshua
• Sheikoleslami Yevgenia
• Willoughby Patrick
• De Kock Andrew L
• Miklos Kimberly Ann
• Haasl Benjamin J
• Schmidt Brian L
• Avilés Delgado Emilio Abner
• Morales-Ortiz Fabian E
• Kunkel Ronald W

Classifications

• Y10T29/49117

  Conductor or circuit manufacturing · CPC title

• A61N1/056 Primary

  Transvascular endocardial electrode systems · CPC title

• Y10T29/49218

  with deforming · CPC title

• H01R43/20 Primary

  for assembling or disassembling contact members with insulating base, case or sleeve · CPC title

• A61N2001/0585

  Coronary sinus electrodes · CPC title