Title:
INTERPYRAMID REPAIR DEVICE
Document Type and Number:
Japanese Patent JP3704018
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enable the deformation of an interpyramid repair device arranged between upper and lower vertebral joints by various states of the force that the device receives and to enable the automatic fine adjustment of its shape.
SOLUTION: This interpyramid repair device is en elastic block 100 having an upper contact surface and lower contact surface brought into contact with the vertebral joints and both right and left flanks communicating the upper and lower contact surfaces. Plural descending elastic guide grooves 110 which extend to a prescribed depth downward from the front surface and are approximately parallel to each other are formed on the upper contact surface and one or plural ascending elastic guide grooves 111 which extend to a prescribed depth upward from the front surface and are approximately parallel to the descending elastic guide grooves 110 are formed on the lower contact surface. The ascending elastic guide grooves 110 and the descending elastic guide grooves 111 are arrayed in alternate order by each of one or plural groups of the guide grooves. The left flank and the right flank exhibit approximately planes. The upper contact surface and the lower contact surface exhibit convex surfaces which are small on at the front and the rear and bulge in the middle.
Inventors:
Tomoichi Hayashi
Application Number:
JP2000092382A
Publication Date:
October 05, 2005
Filing Date:
March 29, 2000
Export Citation:
Assignee:
Tomoichi Hayashi
International Classes:
A61B17/56; A61B17/70; A61F2/44; A61F5/01; A61F2/30; (IPC1-7): A61F2/44; A61B17/56; A61F5/01
Domestic Patent References:
| JP3505416A |
Foreign References:
| US5320644 | ||||
| US5653762 | ||||
| US5443514 | ||||
| WO1997015248A1 | ||||
| WO1996040015A1 |
Attorney, Agent or Firm:
Mikio Hatta
Atsushi Nogami
Yasuo Nara
Etsuko Saito
Katsuyuki Utani
Atsushi Nogami
Yasuo Nara
Etsuko Saito
Katsuyuki Utani