Reamer guide systems and methods of use
AssigneeDePuy Sysnthes Products, LLC
InventorsMirko Rocci, Michael Jeffry Weber
Life of this patent
Estimating the term…
Abstract
A reamer guide system may include a reamer guide that is configured to guide a reamer to at least two bones that are to be reamed to form a countersink. The reamer guide may be configured to temporarily couple to the at least two bones that are to be reamed so as to prevent substantial separation of the at least two bones during the reaming. The reamer guide system may further include a positioning aid that is configured to receive a locating element. The locating element is configured to temporarily couple to a target location adjacent the bones that are to be reamed. The reamer is configured to receive the locating element and advance along the locating element to the target location.
Claims26
A reamer guide system comprising:
- a reamer guide including:
- a guide base having a base body that defines a bone contacting surface that is shaped to conform to a lunate, a capitate, a hamate, and a triquetrum when the base body is positioned adjacent to an interface between the lunate, the capitate, the hamate, and the triquetrum, the guide base further defining 1) a guide aperture that extends through the base body and is configured to receive a reamer so as to direct the reamer toward the interface when the base body is positioned adjacent to the interface, and 2) at least four bores that extend through the base body at respective locations so as to be aligned with each of the lunate, the capitate, the hamate, and the triquetrum, respectively, when the base body is positioned adjacent to the interface,
- wherein each bore is configured to receive respective temporary fixation-element and guides the respective temporary fixation element into securement with a respective one of the lunate, the capitate, the hamate, and the triquetrum so as to retain the lunate, the capitate, the hamate, and the triquetrum relative to each other as the reamer advances into the interface.
A method of reaming a countersink into a lunate, a capitate, a hamate, and a triquetrum, the method comprising:
- placing a reamer guide adjacent the lunate, the capitate, the hamate, and the triquetrum, the reamer guide including a base body, a guide aperture that extends through the base body, and at least four bores that extend through the base body such that each bore extends to a respective one of the lunate, the capitate, the hamate, and the triquetrum;
- inserting a respective temporary fixation element through each bore and into a respect one of the lunate, the capitate, the hamate, and the triquetrum to thereby couple the reamer guide to the lunate, the capitate, the hamate, and the triquetrum;
- positioning a reamer within the aperture proximate to the lunate, the capitate, the hamate, and the triquetrum;
- and
- reaming a countersink into the lunate, the capitate, the hamate, and the triquetrum with the reamer such that the reamer guide prevents the lunate, the capitate, the hamate, and the triquetrum from moving away from each other as the reamer advances into the lunate, the capitate, the hamate, and the triquetrum.
Dependencies are inferred from the claim text.