US 12,213,683 B2
Surgical drill with curved burr attachment and method
Eddy H. del Rio, Royal Palm Beach, FL (US); and Douglas A. Perry, Palm Beach Gardens, FL (US)
Assigned to DePuy Synthes Products, Inc., Raynham, MA (US)
Filed by DePuy Synthes Products, Inc., Raynham, MA (US)
Filed on Aug. 9, 2021, as Appl. No. 17/397,204.
Application 14/605,438 is a division of application No. 12/387,838, filed on May 8, 2009, granted, now 8,939,979, issued on Nov. 11, 2010.
Application 17/397,204 is a continuation of application No. 16/154,395, filed on Oct. 8, 2018, granted, now 11,083,469.
Application 16/154,395 is a continuation of application No. 14/605,438, filed on Jan. 26, 2015, granted, now 10,092,300, issued on Oct. 9, 2018.
Prior Publication US 2022/0022891 A1, Jan. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/16 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/1617 (2013.01) [A61B 17/1615 (2013.01); A61B 17/162 (2013.01); A61B 17/1631 (2013.01); A61B 17/1637 (2013.01); A61B 17/1679 (2013.01); A61B 17/1688 (2013.01); A61B 2017/00738 (2013.01); A61B 2560/0443 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A medical instrument for burring into small bones in a human patient comprising:
a reusable adapter configured to be coupled to a motor for effectuating rotation; and
a burr attachment removably attachable to said adapter, said burr attachment comprising,
an elongated tube;
a wire shaft supported in said tube and coupled to said adapter for rotation thereof;
a cutter attached to said wire shaft and extending a precise distance from an end of said elongated tube;
a coil wire mounted between an inner surface of said elongated tube and said wire shaft, such that the coil surrounds said wire shaft;
a proximal end support attached to said wire shaft and configured to be coupled to said adapter and affixed thereto so as to rotate therewith; and
a distal end support attached to said proximal end support such that the proximal end support is rotatable with respect to the distal end support, said distal end support including a detent and a complementary ball on said adaptor that limits the position of said burr attachment so that the position of the cutter is always in a precise position,
wherein said burr attachment is disposable and bendable without forming kinks therein.