Active compression bone screw
US11317956B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2021 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Aug 26, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/681
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bone screw may be insertable into a bone, and may have a proximal member, a distal member with bone-engaging threads, wherein the distal member is configured to slidably engage the proximal member such that a variable-length cavity is defined within the proximal member and the distal member, and a tension member residing at least partially within the variable-length cavity. The tension member may have a proximal end coupled to the proximal member and a distal end coupled to the distal member such that, in response to motion of the distal member away from the proximal member, the tension member elongates and urges the distal member to move toward the proximal member. The proximal member and the distal member may be interconnected to share bending loads at a bending transmission feature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.