- Patent Title: Transpedicular anchoring screw with reinforced secondary stability
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Application No.: US17775426Application Date: 2020-11-05
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Publication No.: US11653961B2Publication Date: 2023-05-23
- Inventor: Noël Graziani , Olivier Levrier
- Applicant: SPINEDUST
- Applicant Address: FR Marseilles
- Assignee: SPINEDUST
- Current Assignee: SPINEDUST
- Current Assignee Address: FR Marseilles
- Agency: Cantor Colburn LLP
- Priority: FR 12517 2019.11.07
- International Application: PCT/HR2020/052000 2020.11.05
- International Announcement: WO2021/089944A 2021.05.14
- Date entered country: 2022-05-09
- Main IPC: A61B17/86
- IPC: A61B17/86 ; A61B17/70 ; A61B17/00
Abstract:
A transpedicular anchoring screw including a screw body having a first helical thread having:includes
a proximal portion, having notched portions inscribed within notched angular sectors and separated by separation portions inscribed within separation angular sectors, where, over a screw pitch, a ratio between the sum of the measurements of the separation angular sectors and the sum of the measurements of the notched angular sectors is between 50% and 150%.
The anchoring screw also includes a distal portion, having notched portions inscribed within notched angular sectors and separated by separation distal portions inscribed within separation angular sectors, where, over a screw pitch, a ratio between the sum of the measurements of the separation angular sectors and the sum of the measurements of the notched angular sectors is between 0% and 10%.
a proximal portion, having notched portions inscribed within notched angular sectors and separated by separation portions inscribed within separation angular sectors, where, over a screw pitch, a ratio between the sum of the measurements of the separation angular sectors and the sum of the measurements of the notched angular sectors is between 50% and 150%.
The anchoring screw also includes a distal portion, having notched portions inscribed within notched angular sectors and separated by separation distal portions inscribed within separation angular sectors, where, over a screw pitch, a ratio between the sum of the measurements of the separation angular sectors and the sum of the measurements of the notched angular sectors is between 0% and 10%.
Public/Granted literature
- US20220378487A1 TRANSPEDICULAR ANCHORING SCREW WITH REINFORCED SECONDARY STABILITY Public/Granted day:2022-12-01
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