Cannula device
US12279793B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2020 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Feb 19, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/347
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cannula device (1) comprises a housing (11), a cannula (10) arranged on the housing (11), and a puncture device (17) which, in a use state, is arranged on the housing (11) and comprises a puncture trocar (18) received in the cannula (10). The puncture trocar (18) is displaceable with respect to the cannula (10) and comprises a trocar tip (180) which, by displacing the puncture trocar (18) with respect to the cannula (10) in a puncturing direction (P), is movable to protrude from the cannula (10) in said puncturing direction (P), wherein the puncture device (17) is removable from the housing (11) in a removal direction (A) opposite the puncturing direction (P). A protection element (15) is received in the housing (11) and comprises a connection portion (150) arranged on the puncture trocar (18) and at least one shielding leg (152, 153) pivotably connected to the connection portion (150), wherein the puncture trocar (18) is configured to carry the protection element (15) along when the puncture trocar (18) is removed from the housing (11) in said removal direction (A), the at least one shielding leg (152, 153) being configured to be pivotably moved with respect to the connection po…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.