James E Hooper

US Patent:

7563275, Jul 21, 2009

Filed:

Oct 26, 2004

Appl. No.:

10/973524

Inventors:

Mark H. Falahee - Ann Arbor MI, US
Leonel Dominguez - Jacksonville FL, US
John R. Pepper - Cheshire CT, US
Ian McDermott - New London PA, US
K. Arjun Joseph - Bensalem PA, US
James Hooper - Deptford NJ, US

International Classification:

A61B 17/84
A61F 2/08
A61B 17/60

US Classification:

606328, 606104

Abstract:

A system for performing bone arthrodesis includes an implant for bone arthrodesis and a bone fastening device. The implant includes a fastener with an elongated shaft having a head at one end and a bone-piercing point at the opposite end. A first washer has structure for engaging the head of the shaft so as to be polyaxially pivotable with respect to the head. A locking member has structure for engaging the shaft. The locking member can have a second washer pivotally engaged thereto. The bone fastening device can include an elongated cannula with a collet for detachably engaging the first washer and for advancing the first washer. Structure is provided for engaging the fastener and for advancing and rotating the fastener through the collet and through the first washer. The bone arthrodesis device further includes a lower end portion extending from the cannula. The lower end portion has structure for detachably engaging the locking member.