Invention Grant
- Patent Title: Shell to be driven into a bone substance for a prosthetic joint
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Application No.: US16972662Application Date: 2019-11-19
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Publication No.: US11957590B2Publication Date: 2024-04-16
- Inventor: Christian Gugler , Armin Jossi , Martin Schmidt , Andreas Meyenhofer
- Applicant: MATHYS AG BETTLACH
- Applicant Address: CH Bettlach
- Assignee: MATHYS AG BETTLACH
- Current Assignee: MATHYS AG BETTLACH
- Current Assignee Address: CH Bettlach
- Agency: NIXON PEABODY LLP
- Priority: EP 208744 2018.11.28
- International Application: PCT/EP2019/081702 2019.11.19
- International Announcement: WO2020/109060A 2020.06.04
- Date entered country: 2020-12-07
- Main IPC: A61F2/34
- IPC: A61F2/34 ; A61F2/30 ; A61F2/40

Abstract:
A shell (1) for a prosthetic joint to be driven into a bone substance. The shell having an outer lateral surface (4) which is convexly curved in cross section and on which a plurality of ribs (5) is arranged. All ribs extend in the same direction at a preferably increasing gradient angle of 45° to 85° at the equatorial end (6) to a pole-side end (7). The cumulative flank projection area of all ribs (5) corresponds to at least a fifth of the entire outer lateral surface. As a result of this measure, a very high primary stability is achieved once the shell has been driven in, the shell being screwed into the bone substance very precisely and without bone material being sheared off. This arrangement can also be applied, similarly, to a concavely curved inner lateral surface.
Public/Granted literature
- US20210275309A1 SHELL TO BE DRIVEN INTO A BONE SUBSTANCE FOR A PROSTHETIC JOINT Public/Granted day:2021-09-09
Information query
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