Surgery – Instruments – Cutting – puncturing or piercing
Patent
1997-10-14
2000-02-01
Buiz, Michael
Surgery
Instruments
Cutting, puncturing or piercing
600567, 604165, A61B 1734
Patent
active
060197765
ABSTRACT:
Precision depth guided instruments are provided for use in performing percutaneous implantation of hard tissue implant materials. A depth guided stylet include a point adapted for piercing hard tissue, self-tapping threads for self-tapping into hard tissue, and, optionally, a second set of threads for meshing with threads within a overfitting cannula. The stylet may include an elongated rod having a first section having a first diameter, and a second section having a second diameter larger than the first diameter. A cannula for use with a depth guided stylet includes an elongated tube having first and second open ends adapted for a depth guided stylet to pass therethrough. The cannula may include threads along at least a portion of an interior circumference of the elongated tube, which are adapted to mate with threads on an exterior circumference of the depth guided stylet. Alternatively, a set of intersecting grooves may be included in the handle of the cannula to mate with a protrusion on the handle of the stylet. A method of using the instruments is also disclosed, as is a kit which includes the instruments and which is used to open a pathway into hard tissue.
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Dion Jacques E.
Jensen Mary E.
Preissman Howard
Buiz Michael
Parallax Medical Inc.
Reip David O.
LandOfFree
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