Instrument for the surgical treatment of an intervertebral disc by the anterior route
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United States of America Patent
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May 19, 1998
Grant Date -
N/A
app pub date -
Jul 18, 1996
filing date -
Jun 17, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An instrument including a guide needle (1), at least two nesting concentric tubes (2-6) placed over the guide needle, and an outer working tube (7) concentric with said tubes. The tip of the outer tube (7) is provided with a device (11) for spacing apart the bodies of vertebrae adjacent to the disk and keeping them apart during surgery, while its proximal end is provided with a hand grip (8). Anterior percutaneous nuclear incision performed with said instrument enables puncture of the disk, and particularly excision of the nucleus, to be performed easily, more quickly and more effectively than with the conventional posterolateral approach, while avoiding any damage to the anatomical environment of the patient.
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