Abstract: A surgical device and method are disclosed for harvesting bone portions. The device has a guide which facilitates control of at least one dimension of the harvested portion. Embodiments of the invention are particularly, but not exclusively, suited to harvesting bone portions for graft surgery, particularly patella tendon grafts.

Abstract: A tunnel guide apparatus and method for forming two convergent tunnels in a bone. The apparatus includes a first bullet member for aiming a guide pin to form a first tunnel in the bone. A second bullet member adjustably connects to the first bullet member, for aiming a guide pin to form a second tunnel in the bone such that the first and second tunnels are convergent. The two bullet members are joined by a guide arm member disposed on a guide arc member such that the first and second bullet members and the guide arm member are adjustable on the guide arc member to form the two tunnels.

Abstract: A bone anchor adapted to secure soft tissue to bone. The anchor includes a first body section and a second body section proximal to the first body section. The first section has a non-circular cross section such that once the implant is inserted into a shaped bone tunnel it may be secured in the tunnel by rotation from its initial insertion position to a second position. The dissimilarity of the non-circular cross section of the proximal end of the first section prevents removal of the bone anchor from the bone tunnel. Additionally, a suture may be threaded through a hole in the second section. Once the anchor is secured in place with an attached suture, the free ends of the suture may be threaded through soft tissue and tied down to secure the soft tissue to bone.

Abstract: A tunnel guide apparatus and method for forming two convergent tunnels in a bone. The apparatus comprises: a first bullet member for aiming a guide pin to form a first tunnel in the bone; a second bullet member, adjustably connected to the first bullet member, for aiming a guide pin to from a second tunnel in the bone such that the first and second tunnels are convergent; and a guide arm member disposed on a guide arc member such that the first and second bullet members and the guide arm member are adjustable on the guide arc member to form the two tunnels.

Abstract: A surgical device and method are disclosed for harvesting bone portions. The device has a guide which facilitates control of at least one dimension of the harvested portion. Embodiments of the invention are particularly, but not exclusively, suited to harvesting bone portions for graft surgery, particularly patella tendon grafts.

Abstract: The invention relates to an anchoring device for urging a ligament transplant against the wall of a bone hole during ligament replacement and for fixing the anchor in position in the said bone hole. The device has a first component and a second component designed for mutual sliding co-operation between a first anchor inserting position and a second fixation position. The sliding co-operation is provided along respective parallel inner mating surfaces of each component which surfaces are each in angular relation to the respective component outer surfaces and in opposed angular relation to each other so that in the anchor insertion position the width of the said anchoring device is in an elongate narrow mode with respect to a bone hole and, in the fixation position, the width of the said anchoring device is in a compressed wide mode to thereby urge the ligament against the wall of the bone hole. A method of ligament fixation in a bone hole is also disclosed.

Abstract: The invention describes a bone anchor 76 comprising a head region 94 and supporting legs 78 and a method for soft tissue-bone grafting using the said bone anchor 76. A hole 84 is drilled through cortical bone 82 forming a socket 70 in a cancellous bone 90, and the bone anchor 76 is inserted therein thereby trapping ligaments 88a and 88b between the radially outermost portion of the anchor 76 and the inside surface of the socket 70. An optional expansion peg (not shown) is inserted into a hole 86 within the bone anchor 76, thereby causing the proximal ends of the legs 70 of the bone anchor 76 to expand radially causing the ligaments 88a and 88b to closely abut the cancellous bone 90 thereby encouraging the grafting process.

Abstract: The invention relates to an anchoring device for urging a ligament transplant against the wall of a bone hole during ligament replacement and for fixing the anchor in position in the said bone hole. The device has a first component and a second component designed for mutual sliding co-operation between a first anchor inserting position and a second fixation position. The sliding co-operation is provided along respective parallel inner mating surfaces of each component which surfaces are each in angular relation to the respective component outer surfaces and in opposed angular relation to each other so that in the anchor insertion position the width of the said anchoring device is in an elongate narrow mode with respect to a bone hole and, in the fixation position, the width of the said anchoring device is in a compressed wide mode to thereby urge the ligament against the wall of the bone hole. A method of ligament fixation in a bone hole is also disclosed.

Abstract: The invention describes a device used to measure the tension of a soft tissue 24 attached to bones 20,22. The device 2 comprises a body region 4 having force applying hook shaft 6a and abutment spike shaft 8a extending outwardly therefrom. A spike region 8b of the abutment spike shaft 8a is extended in direction X to thereby abut the surface of bone 22. The force of the abutment is measurable by a displacement on a translation scale 14. An operator pulls on the device 2 in direction Y thereby applying an anterior force (measured by a displacement on a force scale 14) to the tissue 24 via a hook region 6b of the force applying hook shaft 6a. The application of said anterior force on to the tissue 24 results in an anterior translation of the tissue 24. The tension of the tissue 24 may be calculated from the displacements on the force scale 12 and translation scale 14.

Abstract: The invention describes a device used to measure the tension of a soft tissue 24 attached to bones 20,22. The device 2 comprises a body region 4 having force applying means 6 and abutment means 8 extending outwardly therefrom. A spike region 8b of the abutment means 8 is extended in direction X to thereby abut the surface of bone 22. The force of the abutment is measurable by a displacement on a translation scale 14. An operator pulls on the device 2 in direction Y thereby applying an anterior force (measured by a displacement on a force scale 14) to the tissue 24 via a hook region 6b of the force applying means 6. The application of said anterior force on to the tissue 24 results in an anterior translation of the tissue 24. The tension of the tissue 24 may be calculated from the displacements on the force scale 12 and translation scale 14.