Method and Apparatus for Delivery of Bone Cement
AssigneeBiomet, Inc.
InventorsThomas Gleason, Lars Ek, Steen Stavnshoj, Mats Rosengren
Life of this patent
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Abstract
A method of applying bone cement for an orthopedic procedure of a patient includes coupling a proximal end of a nozzle component to a bone cement applicator and applying bone cement on a surface of an implant or on a bone surface through an elongated distal opening of a distal portion of the nozzle component. The method includes separating the distal portion from an intermediate portion of the nozzle component at a frangible connecting portion and exposing a circular distal end of the intermediate portion.
Claims22
A method of applying bone cement for an orthopedic procedure of a patient comprising:
- coupling a proximal end of a nozzle component to a bone cement applicator;
- applying bone cement on a planar surface of an implant through an elongated distal opening of a distal portion of the nozzle component, the distal portion having an elongated cross-section;
- separating the distal portion from an intermediate portion of the nozzle component at a frangible connecting portion, the intermediate portion having a circular cross-section;
- and
- exposing a circular distal end of the intermediate portion.
A method of applying bone cement for an orthopedic procedure of a patient comprising:
- coupling a proximal end of a nozzle component to a bone cement applicator, the nozzle component including an elongated intermediate portion having a linearly variable circular cross-section, a connecting portion extending from the intermediate portion at a frangible location, and a distal portion having an elongated cross-section;
- applying flat strips of bone cement on a surface of a first bone through an elongated distal opening of the distal portion of the nozzle component, each flat strip having a predetermined width and thickness;
- breaking the distal portion off the intermediate portion of the nozzle component at the frangible location to form a distal end with a circular cross-section;
- and
- delivering bone cement to a hole of a second bone from the circular cross-section.
The method of claim 14, wherein the one of the first and second bones is a femoral knee bone and the other is a tibial knee bone.
An apparatus for bone cement delivery comprising:
- a nozzle component having a proximal end configured to be coupled to a bone cement applicator, the nozzle component including an elongated intermediate portion having a circular cross-section, a connecting portion extending from the intermediate portion at a frangible location defined by a circular groove and a distal portion having an elongated cross-section,
- wherein the elongated cross-section is configured to deliver strips of bone cement having predetermined width and thickness and the circular groove is configured to define a circular distal end after the distal portion is broken off.
Dependencies are inferred from the claim text.