Closure member for a medical implant device
US7214227B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2004 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Jul 7, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/7005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A closure member, such as a set screw, and complementary receiving member are included in a medical implant device. The receiving member has a plurality of noncontiguous, threaded walls substantially defining a bore for receiving the threaded closure member. When the closure member is inserted into the receiving member, their respective threads interlock to join the noncontiguous walls of the receiving member. The closure member has an outer thread configured to interlock with the inner walls of the receiving member in a manner that aids in preventing the noncontiguous walls of the receiving member from moving away from the closure member. In certain embodiments, the closure member's outer thread includes a trailing edge having a point that is rearward of the trailing edge's root, and the outer thread includes a leading edge having a point that is forward of the leading edge's root.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.