Guidewire assembly including a repeatably inflatable occlusive balloon on a guidewire ensheathed with a spiral coil

• US 20050182437A1
• Filed: 05/04/2004
• Published: 08/18/2005
• Est. Priority Date: 11/06/2001
• Status: Abandoned Application

• Current Assignee: Medrad Incorporated (Bayer AG)
• Original Assignee: Medrad Incorporated (Bayer AG)
• Inventors: Bonnette, Michael J., Prather, Richard R., Thor, Eric J.
• Application Number:
  US10/838,468
• Publication Number:
  US 20050182437A1
• Time in Patent Office: Days
• US Class Current: 606/194
• CPC Class Codes: A61M 2025/09008 having a balloon
• CPC Class Codes: A61M 2025/09083 having a coil around a core
• CPC Class Codes: A61M 25/09 Guide wires
• CPC Class Codes: A61M 25/09033 with fixed mandrils, e.g. mandrils fixed to tip; Tensionable wires
• CPC Class Codes: A61M 25/1018 Balloon inflating or inflation-control devices
• CPC Class Codes: A61M 25/10182 Injector syringes
• CPC Class Codes: A61M 25/10187 Indicators for the level of inflation or deflation

Abstract

A guidewire assembly including a repeatably inflatable occlusive balloon on a guidewire ensheathed in a close wound spiral coil. The guidewire assembly is used as part of a guidewire occlusion system.

Claims

1. A guidewire assembly comprising:

a. a guidewire having,

(1) a proximal portion;

(2) a distal portion having a distal end;

(3) a balloon mounting portion between the proximal portion and the distal portion;

(4) an extended sealable section proximate the proximal portion and having a proximal end;

(5) a lumen extending from the proximal end of the extended sealable section to the balloon mounting portion; and

,

(6) at least one opening in the balloon mounting portion in communication with the lumen;

b. an occlusive balloon mounted on the balloon mounting portion over the at least one opening;

c. a first close wound spiral coil surrounding the proximal portion; and

,

d. a second close wound spiral coil surrounding the distal portion.

2. The guidewire assembly of claim 1, wherein the balloon mounting portion has a circular cross section.

3. The guidewire assembly of claim 1, wherein the first and second close wound coils are coated with polytetrafluoroethylene.

4. The guidewire assembly of claim 1, wherein the first and second close wound coils are concentrically located about and affixed to the guidewire by masses of solder.

5. The guidewire assembly of claim 1, further comprising a zone located proximal to the occlusive balloon for receiving a torque device for torqueing the guidewire assembly.

6. The guidewire assembly of claim 1, wherein at least a portion of the guidewire is made from a stainless steel and cobalt alloy.

7. The guidewire assembly of claim 1, wherein at least a portion of the guidewire assembly comprises a Ni—

Ti alloy.

8. The guidewire assembly of claim 1, wherein the diameter of the guidewire including the surrounding close wound first and second spiral coils is in the range of 0.030 inch to 0.040 inch.

9. The guidewire assembly of claim 8, wherein the diameter is 0.035 inch.

10. The guidewire assembly of claim 1, wherein the distal end comprises a bulbous member.

11. The guidewire assembly of claim 1, wherein the distal portion tapers decreasingly from the balloon mounting portion to the distal end.