Single pass medical electrical lead
First Claim
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1. A medical electrical lead assembly comprising:
- a connector assembly;
a lead body having a first end and a second end, the first end coupled to the connector assembly, the lead body having an insulative sheath having an insulative sheath lumen and a conductor positioned within the insulative sheath lumen,an electrode coupled to the conductor and positioned at the second end of the lead bodywherein the lead body further features a furrow within the insulative sheath and a finger extending from the insulative sheath and biased away from the sheath and out of the furrow, the finger having a pliable blunted tip wherein the finger is positioned between approximately 6 cm. and 10 cm. from the second end of the lead body.
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Abstract
A single pass medical electrical lead featuring an atrial wall wedging mechanism which will permit the atrial electrodes to be positioned directly against the right atrial wall. In the preferred embodiment the atrial wall wedging mechanism comprises an extendible finger which may be used to wedge the lead body in the region where the inferior vena cava enters the right atrium and the right atrium empties through the tricuspid valve into the right ventricle. Through such wedging, the atrial electrodes may be caused to be positioned directly against the right atrium wall without causing excessive pressure to be communicated to the distal tip of the lead.
21 Citations
16 Claims
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1. A medical electrical lead assembly comprising:
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a connector assembly; a lead body having a first end and a second end, the first end coupled to the connector assembly, the lead body having an insulative sheath having an insulative sheath lumen and a conductor positioned within the insulative sheath lumen, an electrode coupled to the conductor and positioned at the second end of the lead body wherein the lead body further features a furrow within the insulative sheath and a finger extending from the insulative sheath and biased away from the sheath and out of the furrow, the finger having a pliable blunted tip wherein the finger is positioned between approximately 6 cm. and 10 cm. from the second end of the lead body. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A medical electrical lead assembly comprising;
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a connector assembly; a lead body having a first end and a second end, the first end coupled to the connector assembly, the lead body having an insulative sheath having a insulative sheath lumen and a conductor positioned within the insulative sheath lumen, a ventricular electrode coupled to the conductor and positioned at the second end of the lead body; an atrial electrode coupled to the conductor and positioned proximal to the second end of the lead body wherein the lead body further features means for wedging the lead body between the region where the inferior vena cava enters the right atrium and the right atrium empties through the tricuspid valve into the right ventricle thereby causing the atrial electrode to be positioned directly against the right atrium wall. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification