Device for removing cancellous bone

A device (10) for removing cancellous bone during machining of a long bone canal, the device comprising:

• brush means (12) for scraping cancellous bone from cortical bone while deflecting off of cortical bone;
• guide means (14) operatively connected to the brush means (12) for centering the brush means (12) relative to the long bone canal;
• the guide means (14) including a center post (14) having a first and second end (20), (22);
• and
• adapter means (16) connected to the guide means (14) for connecting the guide means (14) to a motion actuator to move the brush means (12) relative to the long bone canal and scrape off cancellous bone therefrom;
• the adapter means (16) being operatively connected to the first end (20) of the center post (14);
• the second end (22) of the center post (14) being rod-shaped for seating in the long bone canal;
• the brush means (12) including a plurality of bristles (32) extending radially outwardly from the center post (14) and being disposed between the first and second ends (20), (22);
• the second end (22) of the center post (14) including sleeve mounting means and a sleeve member (24) mounted thereon for seating within the long bone canal, the sleeve member (24) allowing for sizing of the second end (22) to various sized long bone canals.

A device (10) for removing cancellous bone during machining of a long bone canal, the device comprising:

• brush means (12) for scraping cancellous bone from cortical bone while deflecting off of cortical bone;
• guide means (14) operatively connected to the brush means (12) for centering the brush means (12) relative to the long bone canal;
• the guide means (14) including a center post (14) having a first and second end (20), (22);
• and
• adapter means (16) connected to the guide means (14) for connecting the guide means (14) to a motion actuator to move the brush means (12) relative to the long bone canal and scrape off cancellous bone therefrom;
• the adapter means (16) being operatively connected to the first end (20) of the center post (14);
• the second end (22) of the center post (14) being rod-shaped for seating in the long bone canal;
• the brush means (12) including a plurality of bristles (32) extending radially outwardly from the center post (14) and being disposed between the first and second ends (20), (22);
• the center post (14) including stop means extending radially therefrom for limiting how far the center post (14) can enter the long bone canal.

A device (210) for removing cancellous bone during machining of a long bone canal, the device comprising:

• brush means (212) for scraping cancellous bone from cortical bone while deflecting off of cortical bone;
• guide means (214) operatively connected to the brush means (212) for centering the brush means (212) relative to the long bone canal;
• the guide means (214) including a center post (214) having a first and second end (220), (222);
• and
• adapter means (216) connected to the guide means (214) for connecting the guide means (214) to a motion actuator to move the brush means (212) relative to the long bone canal and scrape off cancellous bone therefrom;
• the adapter means (216) being operatively connected to the first end (220) of the center post (214);
• the second end (222) of the center post (214) being rod-shaped for seating in the long bone canal;
• the brush means (212) including a plurality of bristles (232) extending radially outwardly from the center post (214) and being disposed between the first and second ends (220), (222);
• the center post (214) including a female portion (42) defining a guide track extending along a length of the center post (214) and a male portion (44) for seating in the female portion (42) while allowing for reciprocating axial motion relative therebetween to provide axial reciprocating motion between the bristles (232) and the long bone canal.

A device (10) for removing cancellous bone during machining of a long bone canal, the device comprising:

• brush means (12) for scraping cancellous bone from cortical bone while deflecting off of cortical bone;
• guide means (14) operatively connected to the brush means (12) for centering the brush means (12) relative to the long bone canal;
• the guide means (14) including a center post (14) having a first and second end (20), (22);
• and
• adapter means (16) connected to the guide means (14) for connecting the guide means (14) to a motion actuator to move the brush means (12) relative to the long bone canal and scrape off cancellous bone therefrom;
• the adapter means (16) being operatively connected to the first end (20) of the center post (14);
• the second end (22) of the center post (14) being rod-shaped for seating in the long bone canal;
• the brush means (12) including a plurality of bristles (32) extending radially outwardly from the center post (14) and being disposed between the first and second ends (20), (22);
• the bristles (32) are mounted on an adapter wheel (34) including an opening (38) extending therethrough, the center post (14) including a seating surface (40) for seating the adapter wheel (34) thereon.

A device (310) for removing cancellous bone during machining of a long bone canal, the device comprising:

• brush means (312) for scraping cancellous bone from cortical bone while deflecting off of cortical bone;
• guide means (314) operatively connected to the brush means (312) for centering the brush means (312) relative to the long bone canal;
• the guide means (314) including a center post (314) having a first and second end (320), (322);
• and
• adapter means (316) connected to the guide means (314) for connecting the guide means (314) to a motion actuator to move the brush means (312) relative to the long bone canal and scrape off cancellous bone therefrom;
• the adapter means (316) being operatively connected to the first end (320) of the center post (314);
• the second end (322) of the center post (314) being rod-shaped for seating in the long bone canal;
• the brush means (312) including a plurality of bristles (332) extending radially outwardly from the center post (314) and being disposed between the first and second ends (320), (322);
• the center post (314) including a pivot means (52) between the bristles (332) and the second end (322) for allowing pivoting movement of the bristles (332) relative to the second end (322).