×

Flexible tube for an endoscope

  • US 5,788,714 A
  • Filed: 08/07/1996
  • Issued: 08/04/1998
  • Est. Priority Date: 08/14/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A flexible tube for an endoscope, comprising:

  • a spiral tube;

    a netted tube covering an outer surface of said spiral tube, said netted tube being formed by braiding a plurality of strand bundles each formed by closely arranging a plurality of fine wires in parallel; and

    a jacket made of a flexible synthetic resin which covers an outer surface of said netted tube;

    wherein a braid density K of said netted tube lies in a range of 0.772≦

    K≦

    0.906;

    wherein K=(S-s)/S;

    wherein "S" is an area of an intersection of two strand bundles in union with an area of a gap between said intersecting strand bundles and neighboring strand bundles of one side of said intersecting strand bundles, the widths of said area "S" being substantially equal; and

    wherein "s" is the area of the gap produced by the intersecting strand bundles, wherein no strands are covered, the widths of said area "s" being substantially equal.

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