Shaft deflection control assembly for ENT guide instrument
US11964114B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2021 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Feb 16, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2029/025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus includes a body, a shaft assembly, and a deflection actuation assembly. The shaft defines a longitudinal axis and includes a flexible distal portion. The deflection actuation assembly includes a first rotary actuator, a translatable actuation member, and a resilient member. The translatable actuation member extends through the shaft assembly and is operatively coupled with the first rotary actuator and the flexible distal portion of the shaft assembly. The first rotary actuator is rotatable by a rotational force to thereby drive the translatable actuation member longitudinally. The resilient member is positioned between the first rotary actuator and the body and is configured to apply a friction force between the first rotary actuator and the body. The friction force is operable to increase the rotational force required to rotate the first rotary actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.