Torsion resistant vertebrated probe of simple construction
US4686963A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1986 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Mar 5, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0147
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An inspection instrument has an elongated flexible body which extends between a control assembly at a proximal end and an objective head at a distal end. Fiber optic bundles disposed within the instrument permit the illumination and the imaging of the interior regions of a structure being inspected. An articulating vertebrae assembly and a transitional coupler are disposed proximally of the objective head whereby the objective head is caused to move in an arc when tension is applied to interiorly disposed cables connecting the objective head to the control assembly. The vertebrae assembly is comprised of individual hollow vertebrae which are disposed along and axially aligned by a resilient stiffening member which is fixed at a distal end within the objective head and at a proximal end within the coupler. The member provides flexibility to the vertebrae assembly and, because it has a rectangular cross-sectional area, resists a torsion about its longitudinal axis, thus making the distal end of the instrument torque stable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.