×

Balloon catheter

  • US 4,637,396 A
  • Filed: 10/26/1984
  • Issued: 01/20/1987
  • Est. Priority Date: 10/26/1984
  • Status: Expired due to Term
First Claim
Patent Images

1. A balloon catheter, comprising:

  • a hollow flexible catheter tube;

    a flexible inner member disposed coaxially within said catheter tube and fixed thereto against relative longitudinal displacement, the distal end of said inner member extending beyond the distal end of said catheter tube, said inner member being sized and configured to provide a longitudinal passageway between said inner member and said catheter tube for the passage of fluid therethrough;

    connecting means for connecting the longitudinal passageway to an external source of pressurized fluid; and

    a balloon disposed coaxially about said inner member, the proximal end of said balloon being fixed and sealed to the distal end of said catheter tube and the distal end of said balloon being fixed and sealed to the distal end of said inner member to define an annular balloon chamber, said annular balloon chamber being in fluid flow communication with the longitudinal passageway, said balloon including an impervious elastic wall for retaining pressure therein, said elastic wall being reinforced by a knitted fabric tube for permitting said balloon to expand to a predetermined maximum diameter while remaining fixed in length.

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