×

Collapsible aspiration catheter

  • US 5,827,243 A
  • Filed: 11/29/1996
  • Issued: 10/27/1998
  • Est. Priority Date: 11/29/1996
  • Status: Expired due to Term
First Claim
Patent Images

1. A substantially collapsible catheter apparatus for providing a passage into a patient'"'"'s body to infuse fluids therein and/or to aspirate fluids therefrom, said catheter comprising in combination:

  • a. a catheter tube having a longitudinal axis, said catheter tube having leading and trailing ends and including;

    i. a reinforcing wall forming a portion of said catheter tube, said reinforcing wall extending between the leading and trailing ends of said catheter tube and having opposing first and second side edges; and

    ii. a flexible strip of material extending along a predetermined length from the leading end of said catheter tube to a point generally proximate the trailing end of said catheter tube and having first and second opposing edges, the first edge of said strip being joined along the first side edge of said reinforcing wall, and the second edge of said strip being joined along the second side edge of said reinforcing wall, wherein said reinforcing wall and said strip enclose a lumen therebetween, said strip being collapsible and non-resistant to lateral deformation;

    b. the trailing end of said catheter tube being adapted to receive fluid to be infused into, and to convey fluid aspirated from, a patient'"'"'s body;

    c. the leading end of said catheter tube providing a port through which infused fluid received at the trailing end of said catheter tube can be introduced into a patient'"'"'s body, and through which aspirated fluid can be removed from a patient'"'"'s body;

    d. said strip expanding away from said reinforcing wall to a generally rounded shape when fluid is infused through said catheter tube into a patient, and said strip being deformable toward said reinforcing wall to a more flattened configuration when infusion is terminated; and

    e. said reinforcing wall of said catheter tube including preventing means secured to said reinforcing wall and extending substantially along said predetermined length of said flexible strip of material from the leading end of said catheter tube to a point generally proximate the trailing end of said catheter tube for preventing said strip from entirely sealing said lumen during aspiration of fluid through said lumen.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×