Title:
INTERVERTEBRAL DISTRACTOR AND IMPLANT INSERTION INSTRUMENT
Document Type and Number:
WIPO Patent Application WO2001085033
Kind Code:
A3
Abstract:
A distractor/guide sleeve assembly (10) is provided which includes a body (12) having a cylindrical throughbore and a distractor assembly mounted thereon. The distractor assembly includes a rotatable dial (14), a pair of distractor rods (18), and two pairs of jaws (20a, 20b). A plate (46) is secured to the distal end of each distractor rod (18). Each plate (46) includes a plurality of cam members (56) which are slidably positioned in cam slots (64) formed in the jaws (60) of each of the pairs of jaws (20a, 20b). The dial (14) is operably connected to the jaws (60) via the distractor rods (18) such that rotation of the dial (14) effects movement of the pairs of jaws (20a, 20b) between approximated and distracted positions. An insertion tool is also provided which includes a handle and distal engaging structure for releasably engaging an implant. The engaging structure includes a pair of prongs or protrusions having a slip resistant outer surface. The prongs are configured to be releasably received within correspondingly shaped bores formed in an implant.
Inventors:
LIN JO-WEN
Application Number:
PCT/US2001/014711
Publication Date:
April 11, 2002
Filing Date:
May 07, 2001
Export Citation:
Assignee:
OSTEOTECH INC (US)
International Classes:
A61B17/02; A61F2/44; A61F2/46; A61B17/28; A61F2/30; (IPC1-7): A61B17/02; A61F2/44
Foreign References:
| US3486505A | 1969-12-30 | |||
| US5571109A | 1996-11-05 | |||
| US5431658A | 1995-07-11 | |||
| EP0077159A1 | 1983-04-20 | |||
| US5755732A | 1998-05-26 | |||
| US5213112A | 1993-05-25 |
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