Steering system and a catcher system
US8870815B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2010 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Mar 20, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/301
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A steering system (30) comprises two radially oppositely arranged drive wheels (1; 3) for steering a tubular object (5) positioned between the drive wheels (1; 3). The drive wheels (1; 3) each have a wheel rotation axis (40; 42) and each include a plurality of rollers (7) distributed around the wheel rotation axis (40; 42). The rollers (7) are rotatably arranged, each roller having a roller rotation axis (44) and an outer drive face (58) concavely vaulted in a direction corresponding to its roller rotation axis (44). The roller rotation axis (44) is obliquely oriented in relation to the wheel rotation axis (40; 42) and the rollers (7) of each drive wheel (1; 3) form together a steering periphery for the tubular object (5). The steering system enables continues rotation of a tubular object without danger that the object will lose the contact with the rollers. The steering system (30) may be incorporated in a catheter system which comprises a catheter (5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.