Guide wire with releasable barb anchor

• US 5,871,501 A
• Filed: 01/12/1998
• Issued: 02/16/1999
• Est. Priority Date: 01/18/1994
• Status: Expired due to Term

• Current Assignee: St Jude Medical Incorporated (Abbott Laboratories)
• Original Assignee: Datascope Corporation (Getinge AB)
• Inventors: Leschinsky, Boris, Follman, Mark, Urbanski, Jeffrey
• Primary Examiner(s): Buiz, Michael
• Assistant Examiner(s): Trinh, Vikki
• Application Number:
  US09/006,018
• Time in Patent Office: 400 Days
• Field of Search: 606/213, 606/215, 606/217, 606/222, 606/223, 606/224, 606/225, 606/226, 606/230, 606/232, 606/233, 604/164, 604/282
• US Class Current: 606/213
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 2017/00637 for sealing trocar wounds through abdominal wall
• CPC Class Codes: A61B 2017/00654 entirely comprised between the two sides of the opening
• CPC Class Codes: A61B 2017/00672 Locating means therefor, e.g. bleed back lumen
• CPC Class Codes: A61M 2025/018 Catheters having a lateral opening for guiding elongated means lateral to the catheter
• CPC Class Codes: A61M 2025/09075 having a core without a coil possibly combined with a sheath
• CPC Class Codes: A61M 2025/09083 having a coil around a core
• CPC Class Codes: A61M 2025/09091 where a sheath surrounds the coil at the distal part
• CPC Class Codes: A61M 2025/09125 Device for locking a guide wire in a fixed position with respect to the catheter or the human body
• CPC Class Codes: A61M 2025/09175 having specific characteristics at the distal tip
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 25/09 Guide wires

Abstract

An insertion guide wire with an anchor formed in the distal end for precisely locating a subcutaneous arterial wound and guiding a plug of hemostatic material thereto. When the hemostatic material is properly placed, the anchor can be released and the guide wire removed, leaving no foreign object in the lumen of the artery.

Claims

1. A guide wire, comprising

a sheath having a longitudinal axis, a proximal end, a distal end and a lumen extending from said proximal end toward said distal end;

an aperture formed in an intermediate portion of said sheath at a spaced distance from said distal end, said aperture delimiting a distal portion of said sheath between said distal end and said aperture;

a core wire slideably arranged in said sheath and having a proximal end and a distal end, said core wire being movable between a first position in which an intermediate portion of said core wire between said proximal and distal ends protrudes from said sheath through said aperture to form a loop and said distal portion of said sheath forms an angle of less than about 180°

with a remaining portion of said sheath, said loop and said distal portion of said sheath in said first position of said core wire each having a component projecting in a direction transverse to said longitudinal axis, and a second position in which said intermediate portion of said core wire is substantially entirely within said lumen of said sheath, whereby movement of said core wire from said first position to said second position eliminates said loop and moves said distal end of said sheath into substantial alignment with said longitudinal axis.

2. The guide wire as claimed in claim 1, further comprising a reference mark for indicating a predetermined distance from said slit.

3. The guide wire as claimed in claim 1, further comprising a J-tip on said distal end of said sheath.

4. The guide wire as claimed in claim 1, wherein said sheath is formed from a biocompatible material.

5. The guide wire as claimed in claim 4, wherein said sheath is formed from polyethylene.

6. The guide wire as claimed in claim 4, wherein said sheath is formed from a metal coil.