US 11,051,837 B2
Apparatus and method for cutting tissue
Kevin C. Edwards, Olive Branch, MS (US); and Jay A. Casey, Memphis, TN (US)
Assigned to Gyrus Acmi, Inc., Westborough, MA (US)
Filed by Gyrus ACMI, Inc., Southborough, MA (US)
Filed on Aug. 29, 2018, as Appl. No. 16/115,923.
Application 16/115,923 is a continuation of application No. 14/463,757, filed on Aug. 20, 2014, granted, now 10,070,882.
Prior Publication US 2018/0368873 A1, Dec. 27, 2018
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/32 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/32002 (2013.01) [A61B 2017/00309 (2013.01); A61B 2017/00336 (2013.01); A61B 2017/00685 (2013.01); A61B 2017/320024 (2013.01); A61B 2017/320032 (2013.01); A61B 2217/005 (2013.01); A61B 2217/007 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A cutting instrument comprising:
an outer tube comprising a distal end and a proximal end;
an inner tube rotatably disposed within said outer tube, said inner tube comprising a distal end, a proximal end and a region intermediate said distal end and said proximal end of said inner tube, said region comprising a plurality of slits formed in said inner tube so as to render said region of said inner tube flexible; and
a bellows configured to cover at least a portion of the region of the inner tube where the plurality of slits are formed to render the region of the inner tube with the plurality of slits fluid tight, the bellows including a plurality of alternating peaks and troughs, each of the peaks including at least one notch structured to allow fluid passage longitudinally between the bellows and the outer tube.