Warsaw Orthopedic, Inc.

Warsaw Orthoepdic, Inc.

Douglas D Kave

John Stewart Young

Brian A Burd

Keith H Bridwell

William Alan Rezach

Jeff R Justis

Larry Thomas McBride

Lawrence G Lenke

Paul F Wheeler

Douglas Neil Baker

Kelli N Sebastian

Stewart Young

Paula A Nichter

Christopher Nelson

Allison Gasperut

Anthony Harrison

Larry Mcbride

Ii Dennis Anthony Harrison

Allison C Gasperut

A medical instrument includes first and second support members movably coupled to one another to provide variable spacing between distal portions of the support members. A first engagement element is attached to the distal portion of the first support member and extends generally along a first axis, and a second engagement element is attached to the distal portion of the second support member and extends generally along a second axis. At least one of the engagement elements includes an articulating portion articularly engaged with a mounting portion to provide multi-axial movement therebetween to thereby vary an angular orientation of the first axis relative to the second axis. An indicator extends between proximal portions of the support members and includes multiple indicia corresponding to variable distances between the first and second axes adjacent the engagement elements to provide an indication corresponding to a select distance between the first and second axes adjacent the engagement elements.

Measuring instrument for sizing an elongate stabilization element

In one form, systems and methods for positioning a connecting member adjacent the spinal column include at least one anchor that is engageable to bony structure and has a receiver for receiving the connecting member. A pair of elongated members is engaged to the receiver and defines a pathway that extends proximally from the receiver. The connecting member is movable along the elongated members to the receiver of the bone anchor. The elongated members are removable from the receiver of the bone anchor after the connecting member is positioned in the receiver to provide a low profile anchor and connecting member assembly when finally implanted in the patient. However, other embodiments, forms and applications are also envisioned.

Bone anchor extenders

Surgical constructs pre-assembled for insertion as a unit into a patient. The pre-assembled construct may include an elongated member with opposing first and second ends. The construct may also include a connector with a body, a first receptacle that extends through the body and receives the elongated member, a threaded aperture that extends from an exterior of the body into the first receptacle, a fastener threaded into the threaded aperture, and a second receptacle that receives a structural member in the patient. The first receptacle may be larger than the elongated member for the connector to be movable along the elongated member. The construct may also include retaining members permanently attached to each of the first and second ends of the elongated member. The retaining members may include a central opening with an inner radial surface that contacts the elongated member and an outer radial surface that extends outward beyond the elongated member. The retaining members may be larger than the first receptacle to prevent the connector from detaching from the elongated member.

Pre-assembled construct for insertion into a patient

Vertebral column manipulation systems include spinal derotation instrumentation to affect one or more derotation maneuvers on a scoliotic spine or on a spine having one or more displaced, misaligned or curved vertebral levels. Derotation instrumentation is attached to at least one vertebral body, with the instrumentation including at least two elongated extensions mounted to and extending proximally from the at least one vertebral body. A linking assembly extends between and links proximal ends of the extensions to one another. The linking assembly includes first and second mounting assemblies movably engaged to an elongate link member extending transversely to the extensions. Each of the mounting assemblies includes a movable joint for receiving the proximal end of a respective one of the extensions and a cam assembly for securing the mounting assembly in position relative to the link member and to fix the joint around the extension.

Instruments and systems for vertebral column manipulation

An assembly for tissue retraction in surgery includes a pair of arm members removably positioned on and movable along an elongate support member. The arm members each include an external housing, a locking member positioned within the external housing and a passageway extending through the external housing and the locking member. The elongate support member extends through the passageways and the locking members are releasably biased into engagement with the elongate support member to allow the arm members to move in opposite directions along the elongate support member and prevent the arm members from moving toward one another. Each arm member further includes a rotatable engagement portion engageable with a respective retractor portion and a locking element releasably biased into engagement with the engagement portion to limit rotation of the engagement portion to a first direction relative to the arm member.

Retractor assemblies for surgery in a patient

A method for assembling a system for correcting alignment of a spinal column of a patient is provided. The method includes the steps of engaging first and second implants to a first vertebra; engaging a distal portion of respective first and second implant holders to respective ones of the first and second implants, the first and second implant holders each extending from said distal portion along a longitudinal axis to a proximal end outside the patient; engaging a transverse bridge between and to proximal ends of each of the first and second implant holders; and engaging a derotation handle to the transverse bridge at a location between the first and second implant holders and in a generally parallel orientation to a sagittal plane of the spinal column so that the transverse derotation handle extends transversely to the sagital plane.

Spinal derotation instruments and methods

Derotation instrument assemblies and systems are provided to facilitate positioning one or more vertebrae of a spinal column into a desired alignment. The instrument assemblies and systems include implant holders engageable to respective implants engaged to vertebrae of the spinal column, transverse bridges to connect implant holders associated with a particular vertebra, and inter-level linking assemblies to connect instrument assemblies associated with different vertebrae. Derotation handles can be provided to facilitate application of the alignment forces, while the assemblies distribute the corrective forces to the connected implants and vertebrae.

One embodiment of the present application includes a surgical instrument comprising a first member and a second member that are pivotally interconnected together. The first member and the second member each include a proximal end structured for manual manipulation by an operator and a distal end defining a gripping nose structured to engage a bone anchor. The instrument further includes a bearing surface to contact an implantable rod when the gripping nose is engaged with a bone anchor and to urge the rod toward the bone anchor when the gripping nose is pivoted thereabout. A thread guide is included that is engaged by threading of a rotatable member. The rotatable member can include a swivel-mounted head structured to bear against and further urge the rod toward a seat in the bone anchor when the rotatable member is turned through the guide.

Surgical instrumentation for rod reduction

Derotation instrument assemblies and systems are provided to facilitate positioning one or more vertebrae of a spinal column into a desired alignment. The instrument assemblies and systems include implant holders engageable to respective implants engaged to vertebrae of the spinal column, transverse bridges to connect implant holders associated with a particular vertebra, and inter-level linking assemblies to connect instrument assemblies associated with different vertebrae. Derotation handles can be provided on the implant holders to facilitate application of the alignment forces, while the assemblies distribute the corrective forces to the connected implants and vertebrae.

Growing community of inventors

Byhalia, MS, United States of America

Douglas D Kave