Cannula with sensors to measure patient bodywall forces
US11369411B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2019 |
| Grant date | Jun 28, 2022 |
| Priority date | — |
| Expiry date | Jul 27, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cannula is provided that includes a head portion that defines a proximal opening sized to receive one or more surgical instruments; an elongated inner tube rigidly fastened to the head portion defines an elongated conduit; a surgical instrument can be inserted within the conduit; an elongated overtube rigidly fastened to the head portion is coaxially aligned with the inner tube and extends about a portion of the inner tube; an inner wall of the overtube is spaced apart from an outer wall of the inner tube; sensors are disposed on the overtube to provide an indication of forces applied to the outer wall of the overtube in a direction generally transverse to the longitudinal dimension of the overtube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.