Endoscope with mesh tube
US10799091B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Jun 13, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/2476
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscope includes: an insertion portion formed in an elongated shape; a mesh tube formed by braiding thin wires in a tubular shape and provided in a shape of a cylinder inside the insertion portion; and a rigidity changing mechanism including a coil inserted in the insertion portion and formed by winding an element wire, and a wire inserted in the coil and formed by intertwining element wires, the rigidity changing mechanism being configured to apply a compression force to the coil by pulling the wire, to adjust a bending rigidity of the insertion portion, wherein a dimension of a gap created between the thin wires in the mesh tube is set to be smaller than a diameter of the wire and larger than a diameter of each of the element wires of the wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.