DR. WILLIAM ELLIS DONAHUE, DPM
Medical Practice at Pearl Rd, Cleveland, OH

5253659, Oct 19, 1993

Jul 14, 1992

7/914192

Gregory McNamara - Lowell MA
David C. Morley - Amherst NH
William E. Donahue - Cleveland OH

Endoscopic Heel Systems, Inc. - Lowell MA

A61B 1900

128898

An endoscopic system and method for performing endoscopic surgery at locations where tissue inserts into bone which includes a sleeve member, obturator, cutting and excision instruments, and a marking and insertion assembly wherein the sleeve member has an expanded portal through which instrument access and improved visualization can be performed at arcuate lines of insertion of tissue into bone. The sleeve member can include a flange for engaging tissue along the line of insertion and exposing the bone and measurement means for gauging precisely the reduction or resection of bone. An alternative embodiment of the sleeve member has a non-uniform aperture with an instrument portion and a register portion providing increased space and maneuverability for instruments when operating at the portal on tissue or bone that can include the flange. Cutting instruments are provided with an extension portion to extravasate from tissue and palpitate underlying tissue. An marking and insertion assembly for use in heel surgeries to remedy plantar fasciitis and in conjunction with a lateral radiograph provides precise location of an entry incision and precise medial to lateral insertion of a guide wire forming a channel for the sleeve member.

5429117, Jul 4, 1995

Jun 29, 1993

8/084859

Gregory McNamara - Lowell MA
David C. Morley - Amherst NH
William E. Donahue - Cleveland OH

Endoscopic Heel Systems, Inc. - Lowell MA

A61B 100

600104

An endoscopic system and method for performing endoscopic surgery at locations where tissue inserts into bone which includes a sleeve member, obturator, cutting and excision instruments, and a marking and insertion assembly wherein the sleeve member has an expanded portal through which instrument access and improved visualization can be performed at arcuate lines of insertion of tissue into bone. The sleeve member can include a flange for engaging tissue along the line of insertion and exposing the bone and measurement means for gauging precisely the reduction or resection of bone. An alternative embodiment of the sleeve member has a non-uniform aperture with an instrument portion and a register portion providing increased space and maneuverability for instruments when operating at the portal on tissue or bone that can include the flange. Cutting instruments are provided with an extension portion to extravasate from tissue and palpitate underlying tissue. An marking and insertion assembly for use in heel surgeries to remedy plantar fasciitis and in conjunction with a lateral radiograph provides precise location of an entry incision and precise medial to lateral insertion of a guide wire forming a channel for the sleeve member.

5620446, Apr 15, 1997

Jun 7, 1995

8/481841

Gregory McNamara - Lowell MA
William E. Donahue - Mayfield Heights OH

Endoscopic Heel Systems, Inc. - Lowell MA

A61B 1700

606 79

An apparatus for performing endoscopic surgery at locations where tissue inserts into bone which includes cutting instruments having a novel knife blade with a blunted palpitation end to sever tissue without snagging while palpitating underlying tissue.

5400768, Mar 28, 1995

Apr 2, 1993

8/041947

Gregory McNamara - Lowel MA
William E. Donahue - Mayfield Heights OH

Endoscopic Heel Systems, Inc. - Lowell MA

A61B 100

128 4

An endoscopic system and method for performing endoscopic surgery at locations where tissue inserts into bone which including a sleeve member for forming an opening in the body between tissue and bone having a tube, an instrument portion interconnected to a register portion, open ends, slot segments extending inwardly from said open ends, access opening for accessing the interface of tissue and bone, and an obturator configured for inserting slidably into the sleeve member and in the body between tissue and bone.