Medical Leads and Related Systems that Include a Lumen Body That Is Joined to a Lead Body and That Has Multiple Filar Lumens

A medical lead, comprising:

• a lumen body providing multiple longitudinally straight filar lumens;
• a lead body joining the lumen body, with at least a portion of the lead body that contacts the lumen body being collinear with the lumen body;
• and
• a set of filars having a first end and a second end, the first end of each filar being present within a corresponding filar lumen of the lumen body such that the first end of each filar is longitudinally straight, each filar of the set being coiled within at least the portion of the lead body contacting the lumen body.

A medical lead having a first end and a second end and a first length defined by a distance from the first end to the second end, comprising:

• a lumen body providing multiple filar lumens, the lumen body including a filar passageway for each filar lumen, each filar passageway being spaced longitudinally and circumferentially relative to the other filar passageways;
• a lead body joining the lumen body, with at least a portion of the lead body that contacts the lumen body being collinear with the lumen body;
• a set of filars having a first end and a second end, the first end of each filar being present within a corresponding filar lumen of the lumen body and passing through a corresponding filar passageway;
• and
• a set of electrical connectors surrounding the lumen body and each electrical connector being spaced longitudinally along the lumen body relative to the other electrical connectors of the set to be positioned in proximity to a corresponding filar passageway, each electrical connector being electrically connected to a corresponding filar exiting the corresponding filar passageway.

A medical system, comprising:

• an implantable medical device including stimulation circuitry connected to a plurality of electrical contacts;
• an implantable medical lead comprising:
• a plurality of electrical connectors, each electrical connector in contact with a corresponding electrical contact of the plurality,
• a plurality of filars;
• a lumen body having a plurality of filar lumens with a filar of the plurality present in each filar lumen, the filar lumens being longitudinally straight, each filar extending through a filar passageway within the lumen body and being electrically connected to a corresponding electrical connector,
• a lead body joining the lumen body with the filars extending from the lumen body into the lead body, the filars being coiled within the lead body, and
• a set of electrodes located on the lead body, each electrode being connected to a corresponding filar.

A method of making a medical lead, comprising:

• placing first ends of filars into corresponding filar lumens of a lumen body;
• coiling the filars while maintaining the first ends within the filar lumens of the lumen body;
• placing the coiled filars within a lead body and joining the lead body to the lumen body;
• pulling the filars through filar passageways within the lumen body;
• and
• attaching the filars to electrical connectors surrounding the lumen body.