System and method for establishing vascular access
First Claim
1. A system for establishing vascular access over a guidewire, said system comprising:
- a dilator having a lumen sized to be introduced over a guidewire having a pre-selected diameter; and
a radially expandable sleeve having a lumen therethrough and an unexpanded diameter, said sleeve being configured to expand to a larger diameter as the dilator is advanced through the lumen of the sleeve.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems, kits, and methods for establishing vascular access are described. A system typically includes a radially expandable sleeve, a dilator, and a guidewire. The methods comprise positioning the guidewire through an initial tissue tract, passing the radially expandable sleeve over the guidewire through the tissue tract to a target blood vessel, and thereafter passing the dilator over the guidewire and through the radially expandable sleeve to effect radial expansion of the sleeve. Use of the sleeve reduces the risk of injuring tissue surrounding the tissue tract by lessening the axial forces imparted to the tissue. Kits comprise at least the radially expandable sleeve together with instructions for use.
64 Citations
21 Claims
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1. A system for establishing vascular access over a guidewire, said system comprising:
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a dilator having a lumen sized to be introduced over a guidewire having a pre-selected diameter; and
a radially expandable sleeve having a lumen therethrough and an unexpanded diameter, said sleeve being configured to expand to a larger diameter as the dilator is advanced through the lumen of the sleeve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A kit comprising:
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a radially expandable sleeve having a lumen therethrough and an unexpanded diameter, said sleeve being configured to be introduced over a guidewire and expand to a larger diameter as a dilator is advanced through the lumen; and
instructions for using said kit. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification