1
Robert E Simonson: Cannula and sizing and insertion method. Norman Friedland, December 12, 2000: US06159179 (225 worldwide citation)

A relatively inexpensive cannula is sized by including indica on a cannulated dilator that is used to measure the depth of a body cavity, and in one embodiment with the use of a cuttable fixture inserted into an initially enlarged dilator retractor made from a cuttable material the excess of the dil ...


2
Robert E Simonson: Configured and sized cannula. DePuy Spine, Nutter McClennen & Fish, March 7, 2006: US07008431 (171 worldwide citation)

A dilator retractor and the dilators that are used for minimally invasive spinal surgery or other surgery are configured to accommodate the anatomical structure of the patient as by configuring the cross sectional area in an elliptical shape, or by forming a funnel configuration with the wider end a ...


3
Robert E Simonson: Non cannulated dilators. DePuy Spine, Nutter McClennen & Fish, July 12, 2005: US06916330 (110 worldwide citation)

A non-cannulated dilator that is designed with a rigid elongated solid body and with a judiciously configured tip is utilized as the first dilator of a series of dilators which are inserted into the body of a patient for minimally invasive spinal surgery and is made from a solid elongated body, that ...


4
Robert E Simonson, Timothy Allen Beardsley, Douglas Scott Bireley: Instruments and methods for minimally invasive spine surgery. DepuY Spine, November 2, 2010: US07824410 (83 worldwide citation)

A minimally invasive surgical method includes inserting a first port that defines a first pathway to a first vertebra, advancing a first anchor through the first port to the first vertebra, inserting a second port that defines a second pathway to a second vertebra, advancing a second anchor through ...


5
Robert E Simonson: Configured and sized cannula. DePuy Spine, June 5, 2012: US08192437 (14 worldwide citation)

A dilator retractor and the dilators that are used for minimally invasive spinal surgery or other surgery are configured to accommodate the anatomical structure of the patient as by configuring the cross sectional area in an elliptical shape, or by forming a funnel configuration with the wider end a ...


6
Robert E Simonson: Configured and sized cannula. DePuy Synthes Products, Nutter McClennen & Fish, October 7, 2014: US08852244 (10 worldwide citation)

A dilator retractor and the dilators that are used for minimally invasive spinal surgery or other surgery are configured to accommodate the anatomical structure of the patient as by configuring the cross sectional area in an elliptical shape, or by forming a funnel configuration with the wider end a ...


7
Robert E Simonson: Configured and sized cannula. DePuy Spine, October 15, 2013: US08556905 (10 worldwide citation)

A dilator retractor and the dilators that are used for minimally invasive spinal surgery or other surgery are configured to accommodate the anatomical structure of the patient as by configuring the cross sectional area in an elliptical shape, or by forming a funnel configuration with the wider end a ...


8
Robert E Simonson: Configured and sized cannula. DePuy Spine, Nutter McClennen & Fish, January 29, 2013: US08361151 (8 worldwide citation)

A dilator retractor and the dilators that are used for minimally invasive spinal surgery or other surgery are configured to accommodate the anatomical structure of the patient as by configuring the cross sectional area in an elliptical shape, or by forming a funnel configuration with the wider end a ...


9
Robert E Simonson: Configured and sized cannula. DePuy Spine, Nutter McClennen & Fish, August 7, 2012: US08235999 (8 worldwide citation)

A dilator retractor and the dilators that are used for minimally invasive spinal surgery or other surgery are configured to accommodate the anatomical structure of the patient as by configuring the cross sectional area in an elliptical shape, or by forming a funnel configuration with the wider end a ...


10
Robert E Simonson, Timothy Allen Beardsley, Douglas Scott Bireley: Instruments and methods for minimally invasive spine surgery. DePuy Spine, May 21, 2013: US08444678 (7 worldwide citation)

A minimally invasive surgical method includes inserting a first port that defines a first pathway to a first vertebra, advancing a first anchor through the first port to the first vertebra, inserting a second port that defines a second pathway to a second vertebra, advancing a second anchor through ...