Micro-fabricated Catheter Devices Formed With Hybrid Materials

• US 20100256605A1
• Filed: 04/02/2010
• Published: 10/07/2010
• Est. Priority Date: 04/03/2009
• Status: Active Grant

• Current Assignee: Scientia Vascular, LLC
• Original Assignee: Scientia Vascular, LLC
• Inventors: Snyder, Edward J., Lippert, John
• Granted Patent: US 9,067,332 B2
• Time in Patent Office: Days
• US Class Current: 604/529
• CPC Class Codes: A61M 2025/0042 Microcatheters, cannula or the like having outside diameters around 1 mm or less
• CPC Class Codes: A61M 2025/0081 Soft tip
• CPC Class Codes: A61M 2025/09091 where a sheath surrounds the coil at the distal part
• CPC Class Codes: A61M 2025/09108 Methods for making a guide wire
• CPC Class Codes: A61M 2025/09133 having specific material compositions or coatings; Materials with specific mechanical behaviours, e.g. stiffness, strength to transmit torque
• CPC Class Codes: A61M 25/0009 Making of catheters or other medical or surgical tubes
• CPC Class Codes: A61M 25/0013 Weakening parts of a catheter tubing, e.g. by making cuts in the tube or reducing thickness of a layer at one point to adjust the flexibility
• CPC Class Codes: A61M 25/0045 multi-layered, e.g. coated coating materials A61L29/08
• CPC Class Codes: A61M 25/0051 made from fenestrated or weakened tubing layer
• CPC Class Codes: A61M 25/0053 having a variable stiffness along the longitudinal axis, e.g. by varying the pitch of the coil or braid
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/09 Guide wires
• CPC Class Codes: B26D 5/20 with interrelated action between the cutting member and work feed
• CPC Class Codes: B26F 1/0053 by machining, e.g. cutting, grinding, projections on the tube wall
• CPC Class Codes: B26F 1/0061 whereby the tube moves axially or radially B26F1/0038, B26F1/0046, B26F1/0053 take precedence

Abstract

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, wherein said outer member is formed from two or more different stock materials, and embodiments thereof.

Claims

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, wherein said outer member is formed from two or more different stock materials.

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 groves formed therein, and further forming an axial interior space within which a syringe can be inserted.

3. The catheter device of claim 1, wherein a first stock material of said two or more different stock materials is stainless steel.

4. The catheter device of claim 3, wherein said stainless steel is used at said proximal end.

5. The catheter device of claim 3, wherein a second stock material of said two or more different stock materials is nitinol.

6. The catheter device of claim 5, wherein said nitinol is used at said proximal end.

7. The catheter device of claim 1, further comprising an outer elastomer laminate layer in contact with at least a portion of said outer surface.

8. The catheter device of claim 7 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.

9. The catheter device of claim 7, wherein said outer elastomer laminate layer extends beyond said distal end to form a hollow distal tip.

10. The catheter device of claim 9, wherein said hollow distal tip includes a wire holding a shape for the hollow distal tip.

11. The catheter device of claim 9, wherein said hollow distal tip includes a radiopaque marker.

12. The catheter device of claim 1, wherein said micro-fabricated elongated outer member further forms a plurality of fenestrations made through said outer surface and said interior surface into at least a portion of said lumen;

and further comprising an outer elastomer laminate layer in contact with at least a portion of said outer surface and filling said plurality of fenestrations.

13. The catheter device of claim 12 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.

14. The catheter device of claim 1, wherein said micro-fabricated elongated outer member further forms a plurality of fenestrations made at a distal portion of said outer member, and through said outer surface and said interior surface into at least a portion of said lumen;

and further comprising an outer elastomer laminate layer in contact with at least a portion of said outer surface and filling said plurality of fenestrations.

15. The catheter device of claim 1, wherein said micro-fabricated elongated outer member further forms a plurality of fenestrations made at a proximal portion of said outer member, and through said outer surface and said interior surface into at least a portion of said lumen;

and further comprising an outer elastomer laminate layer in contact with at least a portion of said outer surface and filling said plurality of fenestrations.

16. The catheter device of claim 1, wherein said micro-fabricated elongated outer member has an outer diameter of said distal end that is larger than an outer diameter of said proximal end.