×

Vessel deposit shearing apparatus

  • US 5,527,326 A
  • Filed: 11/07/1994
  • Issued: 06/18/1996
  • Est. Priority Date: 12/29/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. An apparatus for removing a deposit adhered to the interior of a vessel, the apparatus comprising:

  • a flexible wire having a proximal end and a distal end, the flexible wire having an outer diameter; and

    a continuous flexible coil concentrically disposed around the flexible wire, the coil having a first coiled region slidably received on a portion of the flexible wire, the first coiled region having an inner diameter sufficiently larger than the outer diameter of the flexible wire to allow the flexible wire to slide through the first coiled region, a second coiled region affixed to the distal end of the wire, and a third coiled region between the first region and the second region, the third coiled region having a pitch lower than that of the first and second regions, and having an average radius which varies inversely with the distance between the first coiled region and the second coiled region.

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