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US 12,109,376 B2Granted
Guidewire
AssigneeC. R. Bard, Inc.
InventorSalvatore Privitera
Life of this patent
Estimating the term…
Abstract
A guidewire comprising a hydrophilic surface coating encasing a core and a metal coil along a longitudinal length of the hydrophilic surface coating to form a distal closed tip, the metal coil circumscribing the core along a predetermined length, the core extending longitudinally beyond the metal coil in both a proximal direction and a distal direction, wherein a proximal section of the guidewire includes a hydrophobic surface coating.
Claims22
A method of using a guidewire comprising:
- (a) inserting a distal closed tip of a guidewire into a bodily lumen, the guidewire comprising a hydrophilic surface coating encasing a core and a metal coil along a longitudinal length of the hydrophilic surface coating to form the distal closed tip, the metal coil circumscribing the core along a predetermined length, the core extending longitudinally beyond the metal coil in both a proximal direction and a distal direction, wherein a proximal section of the guidewire includes a hydrophobic surface coating;
- (b) repositioning the guidewire within the bodily lumen to reach an end location for the distal closed tip while receiving real-time images from a radiation imager that depict a relative location of the distal closed tip with respect to a section of the bodily lumen;
- (c) inserting a medical instrument into the bodily lumen and following a path established by the guidewire;
- and,
- (d) withdrawing the guidewire from the bodily lumen post insertion of the medical instrument.
2 more elements
A method of using a guidewire comprising:
- (a) inserting a distal closed tip of a guidewire into a bodily lumen, the guidewire comprising a hydrophilic surface coating encasing a majority length of the guidewire, the guidewire also including a metal coil free floating with respect to a core along the majority length of the guidewire, where the core extends longitudinally beyond the metal coil in both a proximal direction and a distal direction, wherein a proximal section of the guidewire includes a hydrophobic surface coating over a minority length of the core;
- (b) repositioning the guidewire within the bodily lumen until the distal closed tip reaches an end location;
- (c) inserting a medical instrument into the bodily lumen and following a path established by the guidewire to reach a procedure location;
- and,
- (d) withdrawing the guidewire from the bodily lumen post the medical instrument reaching the procedure location.
2 more elements
Dependencies are inferred from the claim text.