Implantable medical lead designs
First Claim
1. A medical lead comprising:
- a lead body defining a proximal end for attachment to a medical device and a distal end for implantation at a location in a patient; and
a semi-conical shaped tip at the distal end, the semi-conical shaped tip becoming wider at locations further from the proximal end.
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Abstract
The invention is directed to medical leads for use with implantable medical devices. Various features of medical leads are described, many of which may be useful in a variety of different leads, e.g., used in a variety of different applications. In one embodiment, the invention provides a medical lead of varying stiffness characteristics. In another embodiment, the invention provides a medical lead having a semi-conical shaped distal tip that becomes wider at more distal tip locations. In either case, described lead features may be particularly useful for J-shaped lead configurations used for implantation in a patient'"'"'s right atrium. Many other types of leads, however, could also benefit from various aspects of the invention.
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Citations
31 Claims
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1. A medical lead comprising:
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a lead body defining a proximal end for attachment to a medical device and a distal end for implantation at a location in a patient; and
a semi-conical shaped tip at the distal end, the semi-conical shaped tip becoming wider at locations further from the proximal end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An implantable medical device comprising:
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a housing to house circuitry; and
a medical lead electrically coupled to the circuitry, the medical lead including;
a lead body defining a proximal end for attachment to the circuitry and a distal end for implantation at a location in a patient; and
a semi-conical shaped tip at the distal end, the semi-conical shaped tip becoming wider at locations further from the proximal end. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An apparatus comprising:
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a lead body defining a proximal end for attachment to a medical device, a distal end for implantation at a location in a patient and a lumen extending through the lead body; and
means for causing axial force of the distal end into tissue in response to spring force of the lead body following insertion and removal of a J-shaped stylet into the lumen. - View Dependent Claims (29)
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30. A method comprising:
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inserting a J-shaped stylet into a lumen of a medical lead;
implanting a semi-conical distal tip of the medical lead into tissue of a patient; and
removing the J-shaped stylet from the lumen. - View Dependent Claims (31)
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Specification