Stryker European Holdings I LLC

Stryker Trauma Gmbh

Claudia Graca

Nils Zander

Ilan Howling

Annika Homeier

Ole Prien

Oliver Hirsch

Lothar Kühne

Edgar Kaiser

The invention relates to a bone screw and a method for locking a bone screw into a bore. The bore can be provided in e.g. an implant, a plate, a nail or the like. The bone screw comprises a head portion with a first axis, a proximal shaft portion with a second axis, and a distal shaft portion with a third axis. The first axis is a center axis extending in a longitudinal direction of the head portion, the second axis is a center axis extending in a longitudinal direction of the proximal shaft portion, and the third axis is a center axis extending in a longitudinal direction of the distal shaft portion. The first and third axes are aligned to each other. The second axis is displaced relative to the first and third axes.

Bone screw

A tissue protection sleeve for use in suprapatellar surgery is provided. The sleeve has a first end, a second end, an inner surface and an outer surface. The sleeve further comprises at least two open grooves that extend along the inner surface from the first end to the second end. The grooves are adapted to accommodate elongated fixation elements inserted into a tibia. A drill guide sleeve and a trocar for inserting a guide wire are also provided and can be accommodated by the tissue protection sleeve.

Guide sleeve for suprapatellar surgery

An intramedullary nail according to the invention has a locking hole arrangement having one first opening on one side of the intramedullary nail and one second opening at an opposing side of the intramedullary nail. The locking hole arrangement has a first bore having a first bore axis and a second bore having a second bore axis. The first bore and the second bore each having a first orifice on one side of the intramedullary nail and each having a second orifice at an opposite side of the intramedullary nail. The first bore axis and the second bore axis are inclined with respect to each other and the first bore and the second bore intersect each other within the intramedullary nail.

Polyaxial locking hole arrangement

A method for implanting a longitudinal intramedullary nail into the tibia comprises inserting the tibia nail along a plane of symmetry through the tuberositas tibiae. Thereby, the tuberositas tibiae can be used during nail insertion to correctly align the nail and the target arm to the symmetry plane of the bone. This means, that the whole construct, the nail attached to the target arm, has to be inserted in external rotation.

Method for tibial nail insertion

An intramedullary nail has a driving end portion and a non-driving end portion with a longitudinal axis. The non-driving end portion comprises a locking hole arrangement with a sequence of four holes, i.e. spaced from non-driving to driving end a first hole, a second hole, a third hole, and a fourth hole. The first hole and the fourth hole have a corresponding first orientation and the second hole and the third hole have a corresponding second orientation.

Growing community of inventors

Kiel, Germany

Claudia Graca