Patent ID: 7837671

Claim:
A sheath for delivering a lead or other device into a body lumen of a patient, comprising: an elongate tubular member including a proximal end, a distal end sized for introduction into a body lumen, and an outer wall defining a main lumen that extends longitudinally between the proximal and distal ends, the wall including a first channel and a second channel, the first and second channels extending within the wall, directly alongside one another, and longitudinally between the proximal and distal ends; and a ripcord that extends through the first channel, from the proximal end to the distal end of the tubular member, and wraps around, at the distal end, to extend through the second channel from the distal end to the proximal end, such that, when the ripcord is pulled from the proximal end, the ripcord tears through the wall, between the first and second channels.