Ligament fixation staple
First Claim
1. A ligament fixation device for securing a ligament to a bone and which comprises a bone staple having a head portion by which the staple can be driven into the bone, and a pair of legs extending away from the head portion and having ends engageable into the bone, characterized by a stirrup for guiding the driving movement of the staple and co-operable with the staple in order to anchor the ligament to the bone, characterized in that the stirrup has guides to engage the legs of the staple and thereby guide the driving movement of the staple, and an aperture formed in the stirrup and defined between a pair of opposed side edges, said aperture permitting the ligament to be received by the stirrup in serpentine manner with a first portion to be located between the stirrup and the bone, a second portion to pass around one of said side edges of the aperture, through the aperture and around the other side edge, and a third portion to be located between the head portion of the staple and the stirrup, whereby to anchor the ligament to the bone when the staple is driven into the bone.
2 Assignments
0 Petitions
Accused Products
Abstract
A fixation device for securing a prosthetic ligament to a bone and which comprises a bone staple having a head portion by means of which the staple can be driven into the bone, and a pair of legs extending from the head and having ends engageable into the bone, characterized by a stirrup for guiding the driving movement of the staple and arranged also to cooperate with the staple in order to enable the prosthetic ligament to engage the staple and the stirrup and to be securable to the bone upon completion of driving of the staple into the bone, the stirrup comprising two generally parallel side portions which define guides to receive the legs of the staple and to guide the driving movement of the legs, and also defining an aperture through which the ligament can be taken prior to securement of the ligament to the bone.
-
Citations
17 Claims
- 1. A ligament fixation device for securing a ligament to a bone and which comprises a bone staple having a head portion by which the staple can be driven into the bone, and a pair of legs extending away from the head portion and having ends engageable into the bone, characterized by a stirrup for guiding the driving movement of the staple and co-operable with the staple in order to anchor the ligament to the bone, characterized in that the stirrup has guides to engage the legs of the staple and thereby guide the driving movement of the staple, and an aperture formed in the stirrup and defined between a pair of opposed side edges, said aperture permitting the ligament to be received by the stirrup in serpentine manner with a first portion to be located between the stirrup and the bone, a second portion to pass around one of said side edges of the aperture, through the aperture and around the other side edge, and a third portion to be located between the head portion of the staple and the stirrup, whereby to anchor the ligament to the bone when the staple is driven into the bone.
-
14. A fixation device for securing a ligament to a bone and which comprises a bone staple having a head portion by which the staple can be driven into the bone, and a pair of legs extending from the head portion and having ends engageable into the bone, characterized by a stirrup, for guiding the driving movement of the staple, co-operable with the staple in order to anchor the ligament to the bone, said stirrup having guides to receive the legs of the staple and to guide the driving movement of the legs, and also having an aperture through which the ligament can be taken prior to securement of the ligament to the bone, and further characterized by at least two cross-members which interconnect side portions of the stirrup and which are disposed outwardly of the guide postions through which the staple legs are received.
-
15. A fixation device for securing a ligament to a bone and which comprises a bone staple having a head portion by which the staple can be driven into the bone, and a pair of legs extending from the head portion and having ends engageable into the bone, characterized by a stirrup, for guiding the driving movement of the staple, co-operable with the staple in order to anchor the ligament the bone, said stirrup having guides to receive the legs of the staple and to guide the driving movement of the legs, and also having an aperture through which the ligament can be taken prior to securement of the ligament to the bone, and further comprising cross-members which interconnect the side portions of the stirrup which are of smaller thickness than the side portions to enable the head portion of the staple to be located substantially within the stirrup upon completion of driving of the staple into the bone.
-
16. A fixation device for securing a ligament to a bone and which comprises a bone staple having a head portion by which the staple can be driven into the bone, and a pair of legs extending from the head portion and having ends engageable into the bone, characterized by a stirrup, for guiding the driving movement of the staple, co-operable with the staple in order to anchor the ligament to the bone, said stirrup having guides to receive the legs of the staple and to guide the driving movement of the legs, and also having an aperture through which the ligament can be taken prior to securement of the ligament to the bone, and wherein the stirrup is rectangular in shape, having side portions and cross-member portions which define an aperture in which the staple can be received, the ligament also being capable of being taken through this aperture and of being securely anchored therein when the head of the staple is driven to a position in which it is located within the aperture.
-
17. A fixation system having a fixation device for securing a ligament to a bone and which comprises a bone staple having a head portion by which the staple can be driven into the bone, and a pair of legs extending from the head portion and having ends engageable into the bone, characterized by a stirrup, for guiding the driving movement of the staple co-operable with the staple in order to anchor the ligament to the bone, said stirrup having guides to receive the legs of the staple and to guide the driving movement of the legs, and also having an aperture through which the ligament can be taken prior to securement of the ligament to the bone, and including a prosthetic ligament to be taken through the aperture in the stirrup, the prosthetic ligament having tapered ends to facilitate the threading of the ligament through the aperture in the stirrup, and wherein the ligament further includes a pouch and a bone plug, and a densely woven section adjacent to the bone plug.
Specification