Micro-fabricated Catheter Devices Formed Having Elastomeric Fill Compositions
A catheter device comprising: a micro-fabricated elongated outer member having an outer surface and an interior surface forming a lumen extending from a proximal end to a distal end and a plurality of fenestrations made through said outer surface and said interior surface into at least a portion of said lumen; and an outer elastomer laminate layer in contact with at least a portion of said outer surface and filling said plurality of fenestrations, and embodiments thereof.
1 . A catheter device comprising:
a micro-fabricated elongated outer member having an outer surface and an interior surface forming a lumen extending from a proximal end to a distal end and a plurality of fenestrations made through said outer surface and said interior surface into at least a portion of said lumen; and
an outer elastomer laminate layer in contact with at least a portion of said outer surface and filling said plurality of fenestrations.
2 . The catheter device of claim 1 further comprising a torqueable hub connected to said proximal end and having a barrel-shaped body with a plurality of longitudinal grooves formed therein, and further forming an axial interior space within which a syringe can be inserted.
3 . The catheter device of claim 1 wherein said micro-fabricated elongated outer member has a plurality of resultant beams, each resultant beam formed between adjacent fenestrations among said plurality of fenestrations.
4 . The catheter device of claim 3 , wherein said outer elastomer laminate layer substantially covers all of said resultant beams.
5 . The catheter device of claim 3 , wherein said outer elastomer laminate layer covers completely all of said resultant beams.
6 . The catheter device of claim 1 wherein said micro-fabricated elongated outer member forms an interspersed skeleton and wherein said outer elastomer laminate layer forms a matrix of flexible material that is disposed around said interspersed skeleton.
7 . The catheter device of claim 1 , wherein said micro-fabricated elongated outer member is formed from polyetheretherketone.
8 . The catheter device of claim 1 , wherein said outer elastomer laminate layer is formed from polyether block amide.
9 . The catheter device of claim 1 , further comprising a lubricious liner formed from PTFE in contact with the interior surface.
10 . The catheter device of claim 1 , wherein said micro-fabricated elongated outer member is formed from a material having a modulus value of about 3700 MPa.
11 . The catheter device of claim 10 , wherein said outer elastomer laminate layer is formed from a material having a modulus value of about 12 MPa.
12 . The catheter device of claim 1 , wherein said outer elastomer laminate layer extends beyond said distal end to form a hollow distal tip.
13 . The catheter device of claim 12 , wherein said hollow distal tip includes a wire holding a shape for the hollow distal tip.
14 . The catheter device of claim 12 , wherein said hollow distal tip includes a radiopaque marker.