Expandable implant for partial disc replacement and reinforcement of a disc partially removed in a discectomy and for reduction and maintenance of alignment of cancellous bone fractures and methods and apparatuses for same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Feb 5, 2004
app pub date -
Apr 18, 2003
filing date -
Aug 27, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Expandable implants for repair of a defect in an intervertebral disc or in a cancellous bone fracture, and methods and apparatuses for delivering the same into the defect. The implants [generally comprise a compressed form having a size adapted for insertion into the defect, and a composition that allows the implant to expand from the compressed form into an expanded form after the implant is inserted into the defect. The expanded form of the implant has a configuration that fills the defect. The composition used to make the implant can include a shape memory alloy (SMA), Elasthane.TM. polyetherurethane, or any other suitable material. Further, multiple implants can be used to repair a single defect. The implants can be inserted into the defect by various types of insertion devices, including a needle that provides for percutaneous delivery.
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