Extramedullary proximal tibial guide
First Claim
1. A proximal tibial resection guide, comprising:
- a) an elongated rod having a proximal end and a distal end, said rod having an adjustable length;
b) an ankle bracket attached to said distal end of said rod, said ankle bracket including fastening means for releasably fastening said ankle bracket to an ankle of a patient; and
c) a cutting head attached to said proximal end of said rod, said cutting head including a top rail and a bottom rail, said cutting head having a saw guiding slot defined between said rails, said bottom rail having a bone engaging surface, said top rail terminating spaced above said bone engaging surface leaving a portion of said bottom rail adjacent said bone engaging surface exposed to view, said top rail being proximal of said bottom rail whereby a surgeon may insert a saw through said slot and may view a precise position of said saw over a proximal tibia of a patient prior to resection so that precise positioning of said cutting head may be accomplished.
2 Assignments
0 Petitions
Accused Products
Abstract
An extramedullary proximal tibial guide includes a distal end carrying a vertically adjustable ankle bracket as well as an ankle pointer, and a proximal end carrying a saw guide. The saw guide includes a saw guiding slot which is so configured as to have an open area between the bottom of a slot rail and portions of the top of the bone which is to be resected so that the surgeon may precisely view the location of engagement of the surgical saw with the bone structure. The surface area of engagement between the saw guide and the bone is made quite small with a sharp bone contacting edge to facilitate micro adjustment. Laterally of the saw guiding slot, side flares are provided which are designed to protect the patellar tendon and soft tissues during resection. The ankle bracket is held in place about the ankle of the patient through the use of a fastener including a ball chain and a spring. The inventive guide is provided with structures permitting the various required adjustments, which structures are recessed within the guide structure to avoid protrusions which could interfere with the surgical procedure.
78 Citations
20 Claims
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1. A proximal tibial resection guide, comprising:
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a) an elongated rod having a proximal end and a distal end, said rod having an adjustable length; b) an ankle bracket attached to said distal end of said rod, said ankle bracket including fastening means for releasably fastening said ankle bracket to an ankle of a patient; and c) a cutting head attached to said proximal end of said rod, said cutting head including a top rail and a bottom rail, said cutting head having a saw guiding slot defined between said rails, said bottom rail having a bone engaging surface, said top rail terminating spaced above said bone engaging surface leaving a portion of said bottom rail adjacent said bone engaging surface exposed to view, said top rail being proximal of said bottom rail whereby a surgeon may insert a saw through said slot and may view a precise position of said saw over a proximal tibia of a patient prior to resection so that precise positioning of said cutting head may be accomplished. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A proximal tibial resection guide, comprising:
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a) an elongated rod having a proximal end and a distal end, said rod having an adjustable length; b) an ankle bracket attached to said distal end of said rod, said ankle bracket including fastening means for releasably fastening said ankle bracket to an ankle of a patient; and c) a cutting head attached to said proximal end of said elongated rod, said cutting head having a top surface and a bottom surface and a saw guiding slot extending therebetween, said bottom surface being extremely thin and being arcuately curved in a medial-lateral direction as well as in an anterior-posterior direction whereby said cutting head engages a proximal tibia with an area of contact approaching line contact. - View Dependent Claims (17, 18)
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19. A proximal tibial resection guide, comprising:
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a) an elongated rod having a proximal end and a distal end; b) a cutting head attached to said proximal end and having a saw guiding slot extending therethrough; c) an ankle bracket attached to said distal end via a vertically adjustable connection, said ankle bracket having an arcuate bracket member and a chain releasably attachable to said bracket member so that said bracket member may be releasably fastened to a patient'"'"'s ankle. - View Dependent Claims (20)
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Specification