Guide element system for intravascular access
AssigneeVenocare, Inc.
InventorsRaul LEYTE-VIDAL, Amir BELSON, Paul FENTON, Daniel PICO
Life of this patent
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Abstract
A guide element for an intravascular access device that may include an intravascular access device having a needle inside of a catheter lumen and a working space between an exterior surface of the needle and an interior surface of the catheter, the working space configured to receive one or more tools therethrough, and a guide element having a distal end and a proximal end separated by one or more annular elements, the guide element configured to be distally advanced from the intravascular access device inside of a blood vessel, wherein the one or more annular elements is configured to control at least a distal end of the guide element.
Claims27
An intravascular access guide element for use in an intravascular access device, comprising:
- a. An intravascular access device having a needle inside of a catheter lumen and a working space between an exterior surface of the needle and an interior surface of the catheter;
- b. A guide element having a shaft on a proximal end and a tip at a distal end, a portion of the distal end having an exterior shape adapted and configured to conform at least partially to the interior surface of the catheter and the exterior surface of the needle, the guide element configured to move distally and proximally along the working space and to be further distally advanced from the intravascular access device inside of and along a blood vessel;
- and
- c. wherein the tip on the distal most end of the guide element having a rounded distal end and a pre-set curvature where when the guide element is advanced so that the tip is outside of the working space the tip will begin to transition into the pre-set curvature;
- and further wherein the shaft is one of a wire, a braid or a combination of a wire and a braid.
An intravascular access device, comprising:
- a handle having a proximal end and a distal end, a slot extending from the proximal end to the distal end;
- a catheter having a proximal catheter hub and a distal catheter lumen, the proximal catheter hub releasably engaged to the distal end of the handle;
- an access needle extending proximally from within a needle carrier through the catheter lumen, the access needle having at least one surface extending longitudinally along a perimeter portion of the access needle adapted to engage with a portion of a guide element, and a tissue-penetrating tip extending distally beyond the catheter lumen;
- a working space within the catheter along a length of the access needle at least one surface, wherein the working space is configured to facilitate passage of the guide element therethrough from a proximal end of the intravascular access device distally into a vessel;
- and
- a slide extending through the slot, the slide coupled to a proximal portion of the guide element of a first structure so that distal advancement of the slide advances a distal tip portion of the guide element of a second different structure from a position contacting a guide element cutout distally along the at least one surface of the access needle.
Dependencies are inferred from the claim text.