US 7,031,774 B1Granted

Switch for electrode selections in Single-pass Atrial/Ventricular leads

AssigneePacesetter, Inc.

InventorsPhong D. Doan, John R. Helland

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Abstract

An implantable electrical lead for electrical sensing and stimulation of the heart includes a lead body which includes a ventricular tip, a pair of distal atrial ring electrodes, a pair of proximal atrial ring electrodes, a pair of first stationary contacts in electrical continuity, respectively, with the distal atrial ring electrodes, and a pair of second stationary contacts in electrical continuity, respectively, with the proximal atrial ring electrodes. A bifurcation boot overlies the lead and is slidable lengthwise of the lead body. The bifurcation boot carries first and second mobile contacts movable between first and second longitudinally spaced positions on the lead body. In the first position, the first and second mobile contacts are engaged with the first pair of the stationary contacts, respectively. In the second position, the first and second mobile contacts are engaged with the second pair of the stationary contacts, respectively. Stop members integral with the lead body and engaged by the bifurcation boot establish the first and second positions.

Claims18

Dependent claims

An implantable lead comprising:

a lead body comprising a connector assembly disposed at a proximal end of the lead body, the connector assembly having a connector with terminal contacts;
a pair of distal electrodes that are disposed on the lead body;
a pair of proximal electrodes that are disposed on the lead body and located proximal to the distal electrodes;
a first pair of stationary contacts in electrical continuity, respectivey, with the pair of distal electrodes;
a second pair of stationary contacts in electrical continuity, respectively, with the pair of proximal electrodes;
and
a bifurcation boot slidably disposed on the lead body, the bifurcation boot comprising a pair of mobile contacts and conductors, wherein the pair of mobile contacts are in electrical continuity with the terminal contacts by the conductors, and wherein the mobile contacts are movable between first and second positions on the lead body such that in the first position the mobile contacts are engaged with the first pair of stationary contacts to establish electrical continuity between the terminal contacts and the distal electrodes, and such that in the second position the mobile contacts are engaged with the second pair of stationary contacts to establish electrical continuity between the terminal contacts and the proximal electrodes.

4 more elements

An implantable lead comprising:

a lead body comprising a pair of ventricular electrodes disposed at a distal region of the lead body, the lead body comprising a connector assembly disposed at a proximal end of the lead body, the connector assembly having a connector with terminal contacts;
a pair of distal atrial electrodes that are disposed on the lead body and located proximal to the ventricular electrodes;
a pair of proximal atrial electrodes that are disposed on the lead body and located proximal to the distal atrial electrodes;
a first pair of stationary contacts in electrical continuity, respectively, with the pair of distal atrial electrodes;
a second pair of stationary contacts in electrical continuity, respectively, with the pair of proximal atrial electrodes;
and
a bifurcation boot slidably disposed on the lead body, the bifurcation boot comprising a pair of mobile contacts and conductors, wherein the mobile contacts are in electrical continuity with the terminal contacts by the conductors, and wherein the mobile contacts are movable between first and second positions on the lead body such that in the first position the mobile contacts are engaged with the first pair of stationary contacts to establish electrical continuity between the terminal contacts and the distal atrial electrodes, and such that in the second position the mobile contacts are engaged with the second pair of stationary contacts to establish electrical continuity between the terminal contacts and the proximal atrial electrodes.

4 more elements

Dependencies are inferred from the claim text.