Micro-braided guidewire
First Claim
1. A guidewire suitable for guiding a catheter within a body lumen, comprising:
- a) an elongated flexible wire core having a proximal section, a middle section, a distal end section,b) a coil covering at least a portion of said distal end section and bonded to said end section distally with an adhesive,c) a tubular super-elastic alloy braid covering at least a portion of said middle section and bonded to said wire core in at least two locations with an adhesive, andd) a polymeric layer covering extending at least over said middle section and said distal end section.
1 Assignment
0 Petitions
Accused Products
Abstract
This is a composite guidewire for use in a catheter. It is used in medical procedures that involve accessing specifically targeted inner body areas without major surgery. The composite guidewire is especially useful for accessing peripheral soft tissue targets. The guidewire may be a multi-section guidewire assembly preferably having super-elastic alloy ribbon braided reinforcements along at least a portion of the core. The guidewire core may be of a stainless steel or a high elasticity metal alloy, preferably a Ni--Ti alloy. A variation of the guidewire also preferably includes a braid on the exterior of the core wire with an exterior polymeric coating to the most distal portion of the assembly and preferably assembled using adhesives such as epoxies.
-
Citations
65 Claims
-
1. A guidewire suitable for guiding a catheter within a body lumen, comprising:
-
a) an elongated flexible wire core having a proximal section, a middle section, a distal end section, b) a coil covering at least a portion of said distal end section and bonded to said end section distally with an adhesive, c) a tubular super-elastic alloy braid covering at least a portion of said middle section and bonded to said wire core in at least two locations with an adhesive, and d) a polymeric layer covering extending at least over said middle section and said distal end section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
-
25. A guidewire suitable for guiding a catheter within a body lumen comprising:
-
a) an elongated flexible wire core having a proximal section, a middle section, a distal end section, b) a coil covering at least a portion of said distal end section and bonded to said end section distally with an adhesive, c) a tubular super-elastic alloy braid covering at least a portion of said middle section and fastened to said wire core by incomplete interfacial bonding with an adhesive, and d) a polymeric layer covering extending at least over said middle section and said distal end section. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
-
-
49. A guidewire suitable for guiding a catheter within a body lumen, comprising:
-
a) an elongated flexible wire core, b) a tubular super-elastic alloy braid covering at least a portion of said wire core and fastened to said wire core by incomplete interfacial bonding with an adhesive, and c) a polymeric layer covering extending at least over said tubular super-elastic alloy braid. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
-
Specification