Self-aligning prosthesis with hydraulic actuators
US10278836B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2013 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Aug 21, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/7655
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A hydraulic device includes a first plate that pivots in a first direction, a second plate that pivots in a second direction orthogonal to the first direction, a first hydraulic system comprising a first cylinder and piston, a second cylinder and piston and, channels connecting the first cylinder to the second cylinder, the first hydraulic system filled with hydraulic fluid, wherein the transfer of fluid between the first cylinder and second cylinder pivots the first plate, and a second hydraulic system comprising a third cylinder and piston, a fourth cylinder and piston and, channels connecting the third cylinder to the fourth cylinder, the second hydraulic system filled with hydraulic fluid, wherein the transfer of fluid between the third cylinder and fourth cylinder pivots the second plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.