Micro-fabricated guidewire devices having varying diameters
First Claim
Patent Images
1. A guidewire device comprising:
- an elongated outer member includinga proximal portion,a distal portion having an outer surface, an interior surface, and a plurality of radially extending resultant rings and longitudinally extending resultant beams formed between fenestrations on opposing sides of said elongated outer member, the fenestrations having a depth extending between the outer surface and interior surface,wherein an outer diameter of said distal portion of the elongated outer member is larger than an outer diameter of said proximal portion of the elongated outer member and a length of the distal portion is up to 20% of a full length of the guidewire device;
a monolithic elastomeric filling material fully encapsulating said distal portion, including encapsulating the outer surface of the distal portion, and the same monolithic elastomeric filling material completely filling said fenestrations, including filling the depths of the fenestrations, to thereby establish fluid integrity in the elongated outer member; and
an inner member disposed within at least a portion of said lumen.
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Abstract
A guidewire device comprising an elongated outer member having an outer surface and an interior surface forming a lumen extending from a proximal end to a distal end, wherein an outer diameter of said distal end is larger than an outer diameter of said proximal end; and an inner member disposed within a portion of said lumen, and embodiments thereof.
263 Citations
16 Claims
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1. A guidewire device comprising:
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an elongated outer member including a proximal portion, a distal portion having an outer surface, an interior surface, and a plurality of radially extending resultant rings and longitudinally extending resultant beams formed between fenestrations on opposing sides of said elongated outer member, the fenestrations having a depth extending between the outer surface and interior surface, wherein an outer diameter of said distal portion of the elongated outer member is larger than an outer diameter of said proximal portion of the elongated outer member and a length of the distal portion is up to 20% of a full length of the guidewire device; a monolithic elastomeric filling material fully encapsulating said distal portion, including encapsulating the outer surface of the distal portion, and the same monolithic elastomeric filling material completely filling said fenestrations, including filling the depths of the fenestrations, to thereby establish fluid integrity in the elongated outer member; and an inner member disposed within at least a portion of said lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A guidewire device comprising:
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a proximal portion; a distal portion; a micro-fabricated elongated outer member extending from the proximal portion to the distal portion, at least a portion of the micro-fabricated elongated outer member having a plurality of resultant beams formed between fenestrations on opposing sides of said elongated outer member, and the micro-fabricated elongated outer member defining a lumen, wherein an outer diameter of said micro-fabricated elongated outer member at said proximal portion of said guidewire device is less than an outer diameter of said micro-fabricated elongated outer member at said distal portion of said guidewire device; a monolithic elastomeric filling material fully encapsulating said plurality of resultant beams and completely filling said fenestrations, wherein an amount of monolithic elastomeric filling material within the plurality of fenestrations of the elongated outer member is varied so as to form outer curve fenestrations and inner curve fenestrations, wherein the outer curve fenestrations are filled with a greater amount of elastomeric filling than the inner curve fenestrations so that the outer curve fenestrations are expanded longitudinally and the inner curve fenestrations are contracted longitudinally, thereby forming a shape holding tip at the distal portion of the elongated outer member; and an inner member disposed within at least a portion of said lumen wherein the inner member has a constant diameter along a full length of the inner member. - View Dependent Claims (13, 14, 15)
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16. A guidewire device comprising:
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a proximal portion; a distal portion; a length; a micro-fabricated elongated outer member extending along said length of said guidewire device, at least a portion of the micro-fabricated elongated outer member having a plurality of radially extending resultant rings and longitudinally extending resultant beams formed between fenestrations on opposing sides of said elongated outer member, said resultant rings having an inner surface, an outer surface, and two longitudinal surfaces, said resultant beams having an inner surface, and outer surface, and two lateral surfaces, and said micro-fabricated elongated outer member having an outer surface and an interior surface defining a lumen extending from said proximal portion to said distal portion, wherein an outer diameter of said micro-fabricated elongated outer member at said proximal portion of said guidewire device is less than an outer diameter of said micro-fabricated elongated outer member at said distal portion of said guidewire device, the outer diameter of said micro-fabricated elongated outer member at a proximal end having a constant diameter, and a diameter of the lumen increasing at the distal portion of the guidewire device; a monolithic elastomeric filling material fully encapsulating said plurality of resultant rings and beams and completely filling said fenestrations between said resultant rings and beams such that the same monolithic elastomeric filling material abuts said inner surface, said outer surface, and both of said two longitudinal surfaces of said resultant rings, and abuts said inner surface, said outer surface, and both of said two laterals surfaces of said resultant beams; and an inner member disposed within a portion of said lumen, wherein the inner member has a constant diameter along a full length of the inner member.
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Specification