Surgical jig
AssigneeTrochlear Pty Ltd.
InventorSimon Talbot
Life of this patent
Estimating the term…
Abstract
A method and a surgical alignment system for use in the positioning of a prosthetic component on or in a bone of a subject. The system includes an intramedullary member and a jig member which are connectable to each other to position the jig member relative to the intramedullary member in a sagittal orientation. The jig 5 member includes an elongate arm and the jig member is moveable in an axial plane and at least rotatable in a coronal plane relative to the intramedullary member to align the elongate arm with the bony landmark.
Claims14
A surgical alignment system for use in positioning of a prosthetic component on or in a bone of a subject;
- said system including:
- an intramedullary member;
- and
- a jig member including a main body that has a transverse and a longitudinal axis and a transversely extending slot therein to receive a portion of the intramedullary member, the jig member further including an elongate arm which comprises a first end connected to the main body and wherein the elongate arm is configured to align with a bony landmark of said bone;
- wherein when the portion of the intramedullary member is received in the transversely extending slot of the jig member, the jig member is (i) moveable transversely relative to the intramedullary member and (ii) rotatable in a first plane, parallel to a coronal plane, relative to the intramedullary member to substantially align the elongate arm with the bony landmark;
- and
- wherein when the portion of the intramedullary member is received in the transversely extending slot of the jig member, the jig member is substantially fixed in a second plane, parallel to a sagittal plane, relative to the intramedullary member.
A method for positioning a prosthetic component on or in a bone of a subject, said method including:
- inserting an intramedullary member into the bone;
- providing a jig member including a main body that has a transverse axis, a longitudinal axis, and a transversely extending slot therein, the jig member further including an elongate arm having a first end that is connected to the main body of the jig member;
- connecting the jig member to said intramedullary member such that a portion of the intramedullary member is received in the transversely extending slot of the main body of the jig member, the step of connecting the jig member to the intramedullary member substantially fixing the jig member relative to the intramedullary member in a first plane, parallel to a sagittal plane;
- and
- aligning the elongate arm with a bony landmark wherein the jig member is (i) moveable transversely relative to the intramedullary member and (ii) rotatable in a second plane, parallel to a coronal plane, relative to the intramedullary member to substantially align the elongate arm with the bony landmark as the elongate arm is aligned with the bony landmark.
A surgical alignment system for use in positioning of a prosthetic component on or in a bone of a subject, said system for use with a computer assisted navigation alignment system and including:
- a bone marker member;
- and
- a jig member including a main body that has a transverse axis, a longitudinal axis, and a transversely extending slot therein to receive a portion of the bone marker, said jig member further including an elongate arm having a first end that is connected to the main body of the jig member, the elongate arm configured to align with a bony landmark of said bone;
- wherein when the portion of the bone marker is received in the transversely extending slot of the jig member, the jig member is moveable transversely relative to the bone marker and is further rotatable in a plane parallel to a coronal plane, relative to the bone marker member to substantially align the elongate arm with the bony landmark.
Dependencies are inferred from the claim text.