Threaded cannula depth limiter
US12213699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2021 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Sep 4, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/3492
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical access device assembly. The assembly includes a cannula having a working channel and a helical tissue engagement feature disposed along an outer surface of the cannula and configured to stabilize the cannula relative to a body cavity wall of a patient. The assembly also includes a depth limiter movably coupled with the cannula. The depth limiter includes a body portion extending about a central axis of the depth limiter and including a protrusion extending radially inwardly relative to the central axis. The body portion is movable angularly relative to the cannula between a fine adjustment configuration and a coarse adjustment configuration. In the fine adjustment configuration the protrusion is configured to selectively threadably engage the helical tissue engagement feature. In the coarse adjustment configuration the protrusion is configured to selectively threadably disengage the helical tissue engagement feature such that the depth limiter is translatable axially along the cannula.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.