Disc space sizing devices
US9955961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2016 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | May 18, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4658
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Devices are provided for measuring and/or adjusting the distance between two opposing surfaces of a work space, such as two vertebral bodies separated by a disc space. A sizing device may include at least one distraction member, an actuator, and an actuator controller. The actuator controller is movable to move the actuator, with movement of the actuator changing the height dimension of the distraction member. The amount of movement of the actuator controller is generally linearly related to the change of the height dimension of the distraction member throughout the entire range of motion of the actuator controller. The amount of expansion force applied by the distraction member is also generally linearly related to the amount of movement of the actuator controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.