Title:
椎間板の髄核を置き換えるための、または椎間板全体を置き換えるための補綴物と方法
Document Type and Number:
Japanese Patent JP2005507743
Kind Code:
A
Abstract:
A prosthetic nucleus pulposus for replacing the natural nucleus pulposus of an intervertebral disc. The prosthetic nucleus proposus comprises a partially collapsed sealed envelope formed from a material which is permeable to extracellular body fluid. The envelope contains a solute which provides an osmotic potential across the walls of the envelope. In use, the partially collapsed envelope is surgically implanted in the hallowed-out interior of an intervertebral disc and is allowed to absorb fluid, whereby expansion of the envelope and subsequent disc expansion is accomplished.
Inventors:
Lee, Lehman Kay
Maguire, Stephen A.
Leonardo, Edward F
Corao, Ernest N, Junior
Ward, Robert Stanton
Coviero, Sally Kate
Maguire, Stephen A.
Leonardo, Edward F
Corao, Ernest N, Junior
Ward, Robert Stanton
Coviero, Sally Kate
Application Number:
JP2003541507A
Publication Date:
March 24, 2005
Filing Date:
November 05, 2002
Export Citation:
Assignee:
SDG Holdings Inc.
International Classes:
A61L27/00; A61F2/44; A61F2/46; A61F2/00; A61F2/30; (IPC1-7): A61F2/44; A61L27/00
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Tatsuo Tomizu
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Tatsuo Tomizu