ANKLE ARTHRODESIS NAIL AND OUTRIGGER ASSEMBLY
First Claim
Patent Images
1. An intramedullary fixation device comprising:
- (a) a distal section having a reduced diameter arm on its upper end and an internal bore having a first section and a second section, the second section having a smaller diameter than the first section;
(b) a proximal section having an internal bore in its rearward end, the bore having a threaded area and a non threaded area, the non threaded area being sized to slidingly receive the reduced diameter arm;
(c) a connecting member for adjustably securing the distal and proximal sections end to end along a longitudinal axis, the forward end of the connecting member being threadably received in the threaded area of the proximal section internal bore, and the rearward end being sized to be received in the first section of the internal bore in the distal section,(d) means for securing the proximal section to a first bone; and
(e) means for securing the distal section to a least one different bone, wherein the connecting member can provide compression across a bone arthrodesis site by rotating within the proximal and distal sections.
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Accused Products
Abstract
An intramedullary fixation device having a distal section; a proximal section; a connecting member for adjustably securing the distal and proximal sections end to end along a longitudinal axis; means for securing the proximal section to a first bone; and means for securing the distal section to a least one different bone. The connecting member is rotated to provide compression across a bone arthrodesis site to be stabilized and fused. Also described is a method of utilizing the intramedullary fixation device with an outrigger assembly.
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Citations
25 Claims
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1. An intramedullary fixation device comprising:
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(a) a distal section having a reduced diameter arm on its upper end and an internal bore having a first section and a second section, the second section having a smaller diameter than the first section; (b) a proximal section having an internal bore in its rearward end, the bore having a threaded area and a non threaded area, the non threaded area being sized to slidingly receive the reduced diameter arm; (c) a connecting member for adjustably securing the distal and proximal sections end to end along a longitudinal axis, the forward end of the connecting member being threadably received in the threaded area of the proximal section internal bore, and the rearward end being sized to be received in the first section of the internal bore in the distal section, (d) means for securing the proximal section to a first bone; and (e) means for securing the distal section to a least one different bone, wherein the connecting member can provide compression across a bone arthrodesis site by rotating within the proximal and distal sections. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 18, 19, 20, 21, 22)
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10. A method of utilizing an intramedullary fixation device to stabilize an one or more bones comprising the steps of:
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(a) providing an intramedullary fixation device comprising; (i) a distal section having a reduced diameter arm on its upper end and an internal bore having a first section and a second section, the second section having a smaller diameter than the first section; (ii) a proximal section, the proximal section having an internal bore in its rearward end, the bore having a threaded area and a non threaded area, the non threaded area being sized to slidingly receive the reduced diameter arm; (iii) a connecting member for adjustably securing the distal and proximal sections end to end along a longitudinal axis, the forward end of the connecting member being threadably received in the threaded area of the proximal section internal bore, and the rearward end being sized to be received in the first section of the internal bore is the distal section, (iv) means for securing the proximal section to a first bone; and (v) means for securing the distal section to a least one different bone, wherein the connecting member is rotated to provide compression across a bone arthrodesis site to be stabilized and fused; (b) preparing the ankle joint to receive the intramedullary fixation device; (c) applying the intramedullary fixation device in the proper position with respect to the ankle joint; (d) securing the proximal end of the intramedullary fixation device to a first bone or bone section; (e) securing the distal end of the intramedullary fixation device to at least one second bone forming the ankle joint; and (f) applying a compression force across the bones of the ankle joint. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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23. An outrigger assembly for use with an intramedullary fixation device comprising:
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(a) handle section having a first slot and a second slot; (b) an alignment beam member adapted to be adjustably received in said first slot; (c) a mounting shaft adapted to be adjustably secured in said second slot and having a means for securing the intramedullary fixation device to the shaft in alignment with said beam member; (d) first and second means for adjustably securing the alignment beam member to the handle section so that the beam member can be disposed at different lengths in relation to said handle section; and (e) means for rotating said handle section about the longitudinal axis of the mounting shaft. - View Dependent Claims (24, 25)
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Specification