Protective sheath for catheters
First Claim
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1. A sheath for use with a guide wire and catheter system, comprising:
- an elongated body having a distal end;
a protective section for enclosing protecting a distal portion of the catheter system, and having a proximal end adjacent the elongated body distal end and a distal end; and
a tapered end section that smoothly tapers from a first larger cross section proximal end adjacent the protective section distal end to a distal end tip of reduced cross section and being formed with a notch through which the protected enclosed distal portion of the catheter system is extendible;
the notch being formed entirely within a tapered outer wall surface of the tapered end section and positioned proximally relative to the distal tip.
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Abstract
A sheath is provided for covering a device on the distal end of a catheter system during the delivery of the device to an intravascular site within a patient. The sheath can be added to any delivery system prior to use and is intended to protect a deliverable device, such as an intravascular stent, from being dislodged prematurely from the catheter system or moved with respect thereto.
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Citations
20 Claims
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1. A sheath for use with a guide wire and catheter system, comprising:
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an elongated body having a distal end;
a protective section for enclosing protecting a distal portion of the catheter system, and having a proximal end adjacent the elongated body distal end and a distal end; and
a tapered end section that smoothly tapers from a first larger cross section proximal end adjacent the protective section distal end to a distal end tip of reduced cross section and being formed with a notch through which the protected enclosed distal portion of the catheter system is extendible;
the notch being formed entirely within a tapered outer wall surface of the tapered end section and positioned proximally relative to the distal tip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification