Howmedica Osteonics Corporation

Stryker European Holdings I LLC

Asco Controls, L.p.

Stryker European Operations Holdings LLC

Gennaro A Barile

Andrew J Nelson

Jan Heinsohn

David Viscardi

Rajan Yadav

Koustubh Rao

Ashish Mehta

Venkateswaran Perumal

Luke Buza

Philip T Kemp

Roy Philip Splieth

Michael A McGovern

David Neal

Stuart L Axelson, Jr

Drew P LaMarca

Sunny Shorabh

Daniel E Sapio

Joaquin Sanchez-Sotelo

Robert Dominik

Scott Vormbrock

Duane J Marchyn

Louis M Starace

Robert Bell

Disclosed herein are patient-specific cutting guides for guiding a surgical instrument for resecting a portion of a glenoid of a patient. The cutting guides include a base portion having a contact surface shaped to substantially match at least a portion of a cavity of the glenoid. The base portion has a guide hole extending therethrough in which the guide hole has an axis coaxial with an axis of rotation. The cutting guides include one or more stabilization members extending outwardly from the base portion and having a contact surface shaped to substantially match an outer surface of a portion of a scapula of the patient. The stabilization members are oriented to take into account the patient's anatomy in orienting and stabilizing the guide with respect to the glenoid. The guide hole of the base portion is for guiding the surgical instrument to create a guide hole in the glenoid.

Patient-specific cutting guide for the shoulder

A stemless prosthetic shoulder joint may include a prosthetic humeral head and a stemless base. The stemless base may include a collar and an anchor extending from the collar intended to anchor the base into the proximal humerus. The anchor may include various features to enhance the fixation of the base, including hooks, threads, and/or expandable members that may be transitioned from a contracted insertion condition to an expanded implanted condition once the base is positioned in the bone. The anchor and/or collar may also include additional features to enhance fixation, such as geometries and surface features to enhance fixation to bone. The anchor may include a plurality of chisel slots to facilitate removal of bone during a revision surgery.

Stemless metaphyseal humeral implant

An impactor system is for impacting a base of a shoulder implant into a humerus. The system may include a housing having distal stabilizer configured to contact a proximal resected surface of the humerus. The distal stabilizer may define an open space. An impaction member may be slidably received within the housing. The impaction member may have a proximal surface and a distal connection mechanism adapted to connect to the base of the shoulder implant. The impaction member may be movable from a first proximal position in which the base of the shoulder implant, when connected to the impaction member, is positioned within the open space defined by the distal stabilizer, to a second distal position in which the base of the shoulder implant, when connected to the impaction member, is positioned at least partially distal to the open space defined by the distal stabilizer.

Shoulder implant impactor with stabilization features

A system for bending a surgical device is disclosed in which the system may include a bending apparatus having a housing with a series of posts received therein. In some embodiments, one of the series of posts may be selectively movable within an elongate slot in the housing, while another of the series of posts may be circumferentially movable. Movement of the circumferentially movable post may serve to bend a surgical device about at least one of the other remaining posts. A tool may also be provided with the system for interacting with a lever and causing the circumferentially movable post to move circumferentially. An alternate apparatus for bending a surgical device is also disclosed, as are methods of bending a surgical device using the aforementioned system.

Instrument for use in bending surgical devices

Disclosed herein are devices and methods for guiding a surgical instrument for resecting a portion of a humerus of a patient. The surgical instrument is a patient-specific cutting guide having a base portion having a contact surface shaped to substantially match an outer surface of a neck portion of the humerus. The guide includes at least one proximal stabilization member extending medially from the base portion and having a contact surface shaped to substantially match an outer surface of a head portion of the humerus. The guide further includes at least one distal stabilization member extending distally from the base portion and having a contact surface shaped to substantially match an outer surface of a shaft portion of the humerus. The base portion includes a guide slot for guiding the surgical instrument.

An impactor for connection to a concave surface of an implant has a shaft extending along a first axis from a first end to a second end. The shaft first end includes a pivot surface surrounding an internal shaft bore. The internal bore extends along the first axis and is open at the first end and extends towards the second end about the first axis. The internal bore has a pin extending through the shaft and intersecting the bore. A resilient element is mounted in the shaft bore spaced towards the shaft second end. A post is mounted in the shaft bore along the first axis. The post has a first end engaging a threaded bore in the concave surface of the implant. The post has a second end engaging the resilient element and a slot therein slidably engaging the pin and a collar pivotally mounted on the shaft.

Glenosphere inserter and impactor

Humeral head retractor

An instrument for holding a surgical tool or bone implant includes a handle with a bearing surface formed in one end for engaging the surgical tool. An elastically deformable plate is mounted on the handle body the plate having a catch element formed on a leading end thereof adapted to engage a coupling element formed on the surgical tool. The elastically deformable plate includes a cam follower formed in a recess thereon and includes a deformable spring section intermediate the can elements and the plate end with the catch element. An elongated pivotable loading member is rotatably mounted on the handle body. The loading member includes a cam surface for engaging the cam follower surface on the deformable plate. The cam surface on the loading member is shaped to elastically deform the elastically deformable plate section in a direction away from the plate catch element to thereby load and maintain a connecting force between the plate and the surgical tool or bone implant.

Broach handle with flexure spring

A patella clamp has a first part including a reference surface engageable with the anterior surface of a patella. The first part includes a stop surface spaced from the reference surface. A second clamping part is provided which is moveable with respect to the first clamping part. A cutting element coupled to the first clamping part is moveable with respect to the first part. The cutting element includes a shaft with an adjustable collar mounted on the shaft for movement with respect to the longitudinal axis of the shaft and cutting element. The adjustable collar on the shaft is engageable with a stop surface on the first part for spacing the cutting element a desired distance from the reference surface. A pair of gages are provided for selectively setting the position of the adjustable collar with respect to either the amount of patella bone being removed or the amount of patella bone remaining.

Modular patella instrument

A cutting block for resecting a bone, particularly the distal femur, has a body with a first generally planar bone contacting surface to contact the resected distal surface of the femur. The body has a second surface spaced from the bone contacting surface along an axis perpendicular to said generally planar bone contacting surface. The body has a perimeter surface extending between the first and second surfaces, wherein the perimeter surface is at least partially curved with respect to the axis in both a direction generally perpendicular thereto and generally parallel thereto. The perimeter surface may be polished.

Bone shaped cutting block

Growing community of inventors

Secaucus, NJ, United States of America

Gennaro A Barile