US 12,310,619 B2
Slotted canulla for arthroscopic surgery
Omer Mei-Dan, Boulder, CO (US); and Jacob Segil, Boulder, CO (US)
Assigned to SMITH & NEPHEW, INC., Memphis, TN (US)
Appl. No. 16/766,248
Filed by Smith & Nephew, Inc., Memphis, TN (US)
PCT Filed Dec. 3, 2018, PCT No. PCT/US2018/063680
§ 371(c)(1), (2) Date May 21, 2020,
PCT Pub. No. WO2019/109100, PCT Pub. Date Jun. 6, 2019.
Claims priority of provisional application 62/593,663, filed on Dec. 1, 2017.
Prior Publication US 2021/0038255 A1, Feb. 11, 2021
Int. Cl. A61B 17/34 (2006.01); A61B 17/00 (2006.01); A61B 17/32 (2006.01)
CPC A61B 17/3421 (2013.01) [A61B 17/00234 (2013.01); A61B 17/320016 (2013.01); A61B 2017/00309 (2013.01); A61B 2017/00871 (2013.01); A61B 2017/3443 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method for implementing a surgical procedure, comprising:
a) making an incision on a patient in need of such surgical procedure at a location proximate an operation site to establish an entry portal;
b) attaching a plunger to a longitudinal bore of a cannula for surgical procedures, said cannula comprising:
an elongated semi-circular body comprising:
a cavity extending along a longitudinal axis of the semi-circular body, the cavity having an open distal end and an open proximate end;
an integrally formed outward bend extending curvilinear from the cavity on the proximate end; and,
at least one fold line across a width of the cannula, perpendicular to the longitudinal axis,
wherein the cannula is made from a polymer material, and
wherein the cannula can be bent or broken along the at least one fold line to adjust the operable length of the cannula during a surgical procedure
c) introducing the distal end of the cannula/plunger combination into the entry portal and advancing the combination a predetermined distance relative to the operation site;
d) withdrawing the plunger while permitting the cannula to remain in place at the operation site;
e) inserting an endoscope along the cavity of the cannula for direct visualization of anatomic structures surrounding the cannula and positioning of the cannula at the operative site;
f) withdrawing the endoscope from the cannula;
g) inserting a surgical instrument comprising a cutting instrument into the cannula;
h) advancing the surgical instrument so that the cutting instrument is in contact with a target tissue at the operation site;
i) operatively engaging the target tissue with the surgical instrument so as to perform a desired operative procedure on the target tissue;
j) withdrawing the surgical instrument from the cannula; and
k) withdrawing the cannula through the entry portal.