SUBCUTANEOUS TUNNELING DEVICE WITH ELONGATED OPEN SLOT SHEATH
First Claim
1. An introducer sheath comprising:
- an elongated outer sheath including a proximal end, a distal end, and an outer sheath wall extending from the proximal end to the distal end, the outer sheath wall extending circumferentially about a longitudinal axis of the outer sheath to an extent greater than 180° and
less than 360°
to define an outer sheath slot extending from the proximal end through the distal end, the outer sheath slot parallel to the longitudinal axis; and
an elongated inner sheath including a proximal end, a distal end, and an inner sheath wall extending from the proximal end to the distal end, the inner sheath wall extending circumferentially about a longitudinal axis of the inner sheath to an extent greater than the difference between 360° and
the circumferential extent of the outer sheath wall, and less than 360°
to define an inner sheath slot extending from the proximal end through the distal end, the inner sheath slot parallel to the longitudinal axis,wherein the inner sheath is coaxially disposed within the outer sheath, the inner sheath rotatable relative to the outer sheath and configured to form an enclosed lumen when the outer sheath slot is not aligned with the inner sheath slot, and to form an open slot along the entire length of the introducer sheath when the outer sheath slot is aligned with the inner sheath slot.
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Accused Products
Abstract
An introducer sheath includes an elongated outer sheath and an elongated inner sheath coaxially disposed within the outer sheath. The elongated outer sheath includes an outer sheath wall extending circumferentially about a longitudinal axis of the outer sheath to an extent greater than 180° and less than 360° to define an outer sheath slot. The elongated inner sheath includes an inner sheath wall extending circumferentially about a longitudinal axis of the inner sheath to an extent greater than the difference between 360° and the circumferential extent of the outer sheath wall, and less than 360° to define an inner sheath slot. The inner sheath is rotatable relative to the outer sheath to form an enclosed lumen when the outer and inner sheath slots are not aligned, and to form an open slot along the entire length of the introducer sheath when the outer and inner sheath slots are aligned.
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Citations
20 Claims
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1. An introducer sheath comprising:
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an elongated outer sheath including a proximal end, a distal end, and an outer sheath wall extending from the proximal end to the distal end, the outer sheath wall extending circumferentially about a longitudinal axis of the outer sheath to an extent greater than 180° and
less than 360°
to define an outer sheath slot extending from the proximal end through the distal end, the outer sheath slot parallel to the longitudinal axis; andan elongated inner sheath including a proximal end, a distal end, and an inner sheath wall extending from the proximal end to the distal end, the inner sheath wall extending circumferentially about a longitudinal axis of the inner sheath to an extent greater than the difference between 360° and
the circumferential extent of the outer sheath wall, and less than 360°
to define an inner sheath slot extending from the proximal end through the distal end, the inner sheath slot parallel to the longitudinal axis,wherein the inner sheath is coaxially disposed within the outer sheath, the inner sheath rotatable relative to the outer sheath and configured to form an enclosed lumen when the outer sheath slot is not aligned with the inner sheath slot, and to form an open slot along the entire length of the introducer sheath when the outer sheath slot is aligned with the inner sheath slot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A tunneling device for implanting a lead or catheter, the device comprising:
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an introducer sheath including; an elongated outer sheath including a proximal end, a distal end, and an outer sheath wall extending from the proximal end to the distal end, the outer sheath wall extending circumferentially about a longitudinal axis of the outer sheath to an extent greater than 180° and
less than 360°
to define an outer sheath slot extending from the proximal end through the distal end, the outer sheath slot parallel to the longitudinal axis; andan elongated inner sheath including a proximal end, a distal end, and an inner sheath wall extending from the proximal end to the distal end, the inner sheath wall extending circumferentially about a longitudinal axis of the inner sheath to an extent greater than the difference between 360° and
the circumferential extent of the outer sheath wall, and less than 360°
to define an inner sheath slot extending from the proximal end through the distal end, the inner sheath slot parallel to the longitudinal axis, wherein the inner sheath is coaxially disposed within the outer sheath, the inner sheath rotatable relative to the outer sheath and configured to form an enclosed lumen when the outer sheath slot is not aligned with the inner sheath slot, and to form an open slot along the entire length of the introducer sheath when the outer sheath slot is aligned with the inner sheath slot; anda tunneling rod removably inserted into the lumen of the introducer sheath, the tunneling rod extending from a proximal end to a distal end, the distal end including a tapered tip, the tapered tip projecting at least partially beyond the distal ends of the outer sheath and the inner sheath and defining a distal end of the tunneling device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method for implanting a lead or catheter within a patient, the method comprising:
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making an incision at a location of implantation; inserting into the incision a distal end of a tunneling device including a tunneling rod and an introducer sheath, the introducer sheath including an outer sheath coaxially aligned with an inner sheath, the outer sheath including an outer sheath slot extending the length of the outer sheath, the inner sheath including an inner sheath slot extending the length of the inner sheath, the inner sheath slot not aligned with the outer sheath slot; driving the distal end of the tunneling device to a location corresponding to the desired placement of the lead or catheter; removing the tunneling rod from a proximal end of the introducer sheath; inserting the lead or catheter into the introducer sheath until the lead or catheter projects beyond a distal end of the introducer sheath; rotating the inner sheath relative to the outer sheath until the inner sheath slot and the outer sheath slot are aligned to each other to form an open slot along the entire length of the introducer sheath; and withdrawing the introducer sheath from the patient, wherein the implanted lead or catheter passes through the open slot. - View Dependent Claims (19, 20)
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Specification