Micro-fabricated Guidewire Devices Having Varying Diameters

• US 20100256528A1
• 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 10,363,389 B2
• Time in Patent Office: Days
• US Class Current: 600/585
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61M 2025/0042 Microcatheters, cannula or the like having outside diameters around 1 mm or less
• 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 25/0013 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 25/09 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 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.

Claims

1. 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.

2. The guidewire device of claim 1, wherein at least a portion of said elongated outer member is microfabricated.

3. The guidewire device of claim 1, wherein said elongated outer member is micro-fabricated at said distal portion.

4. The guidewire device of claim 1 wherein said inner member is a monofilament wire core.

5. The guidewire device of claim 1 wherein said inner member is a hypotube.

6. The guidewire 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.

7. The guidewire device of claim 1, wherein said outer diameter of said proximal end is about 0.030 inches.

8. The guidewire device of claim 1, wherein said outer diameter of said distal end is about 0.039 inches.

9. The guidewire device of claim 1, wherein said outer diameter of said proximal end is about 0.030 inches, and said outer diameter of said distal end is about 0.039 inches.

10. The guidewire device of claim 1, wherein said lumen has an inner diameter of about 0.024 inches.