Preparing a tibia for receiving tibial implant component of a replacement ankle
AssigneeWright Medical Technology, Inc.
InventorsMeghan KUBACKI, III, Ramon LUNA, Terrance W. STROHKIRCH
Life of this patent
Estimating the term…
Abstract
Disclosed is are various methods of preparing a tibial intramedullary canal for receiving a tibial implant, methods of preparing a talus for receiving a talar implant, and some examples of a power driver adapter that can be used to carry out the preparation of the tibial intramedullary canal.
Claims40
A method of preparing an intramedullary canal in a tibia for receiving a tibial implant, wherein the tibia comprises a distal end, the method comprising:
- a) resecting the distal end of the tibia forming a resected joint space for the tibial implant, wherein the joint space comprises a tibial resection surface at the distal end of the tibia and is open at anterior side;
- b) positioning a power driver, equipped with a cutting tool bit, into the resected joint space from the anterior side, wherein the cutting tool bit is aimed toward the intramedullary canal of the tibia;
- and
- c) cutting into the intramedullary canal using the power driver.
A method of preparing an intramedullary canal in a tibia for receiving a tibial implant, wherein the tibia comprises a distal end, the method comprising:
- a) resecting the distal end of the tibia forming a resected joint space for the tibial implant, wherein the joint space comprises a tibial resection surface at the distal end of the tibia and is open at posterior side;
- b) positioning a power driver, equipped with a cutting tool bit, into the joint space from the posterior side, wherein the cutting tool bit is aimed toward the intramedullary canal of the tibia;
- and
- c) cutting into the intramedullary canal using the power driver.
A method of preparing an intramedullary canal in a tibia for receiving a tibial implant, wherein the tibia comprises a distal end, the method comprising:
- a) resecting the distal end of the tibia forming a resected joint space for the tibial implant, wherein the joint space comprises a tibial resection surface at the distal end of the tibia and is open at lateral side;
- b) positioning a power driver, equipped with a cutting tool bit, into the joint space from the lateral side, wherein the cutting tool bit is aimed toward the intramedullary canal of the tibia;
- and
- c) cutting into the intramedullary canal using the power driver.
A surgical instrument kit comprising:
- a power driver adapter configured for cutting into an intramedullary canal of a tibia, the power driver adapter comprising:
- an elongated body having a driving end, a cutting tool bit receiving end, and a longitudinal axis;
- wherein the driving end having a drive shaft coaxially located with the longitudinal axis and configured to mate with a power delivering unit that rotates the drive shaft coaxially about the longitudinal axis;
- wherein the cutting tool bit receiving end comprises a cutting tool bit receiving base that is configured for engaging with a cutting tool bit and rotates the cutting tool bit for cutting action, wherein the cutting tool bit receiving base rotates with a rotational axis that is orthogonal to the longitudinal axis of the elongated body;
- wherein the elongated body comprises a series of gears connecting the drive shaft to the cutting tool bit receiving end;
- wherein the series of gears are configured in an arrangement that converts the coaxial rotation of the drive shaft to the rotation of the cutting tool bit receiving base;
- and
- a guide assembly comprising:
- a guide portion configured for attaching to a resected surface at a distal end of the tibia, wherein the guide portion comprises a hole for receiving and allowing the cutting tool bit to extend therethrough;
- and
- a guide head portion extending in proximal direction from the guide portion and configured for attaching to the anterior side of the tibia.
A power driver adapter configured for cutting into an intramedullary canal of a tibia, the power driver adapter comprising:
- an elongated body having a driving end, a cutting tool bit receiving end, and a longitudinal axis;
- wherein the driving end having a drive shaft coaxially located with the longitudinal axis and configured to mate with a power delivering unit that rotates the drive shaft coaxially about the longitudinal axis;
- wherein the cutting tool bit receiving end comprises a cutting tool bit receiving base that is configured for engaging with a cutting tool bit and rotates the cutting tool bit for cutting action, wherein the cutting tool receiving base rotates with a rotational axis that is orthogonal to the longitudinal axis of the elongated body;
- wherein the elongated body comprises a series of gears connecting the drive shaft to the cutting tool bit receiving end;
- wherein the series of gears are configured in an arrangement that converts the coaxial rotation of the drive shaft to the rotation of the cutting tool bit receiving base.
A method of preparing a talus for receiving a talar implant, wherein the talus comprises a proximal end, the method comprising:
- (a) resecting the proximal end of the talus forming a resected joint space for the talar implant, wherein the joint space comprises a talar resection surface at the proximal end of the talus and is open at anterior side;
- (b) positioning a power driver, equipped with a cutting tool bit, into the resected joint space from the anterior side, wherein the cutting tool bit is aimed toward the talar resection surface;
- and
- (c) cutting into the talar resection surface using the power driver.
A method of preparing a talus for receiving a talar implant, wherein the talus comprises a proximal end, the method comprising:
- (a) resecting the proximal end of the talus forming a resected joint space for the talar implant, wherein the joint space comprises a talar resection surface at the proximal end of the talus and is open at posterior side;
- (b) positioning a power driver, equipped with a cutting tool bit, into the resected joint space from the posterior side, wherein the cutting tool bit is aimed toward the talar resection surface;
- and
- (c) cutting into the talar resection surface using the power driver.
A method of preparing a talus for receiving a talar implant, wherein the talus comprises a proximal end, the method comprising:
- (a) resecting the proximal end of the talus forming a resected joint space for the talar implant, wherein the joint space comprises a talar resection surface at the proximal end of the talus and is open at lateral side;
- (b) positioning a power driver, equipped with a cutting tool bit, into the resected joint space from the lateral side, wherein the cutting tool bit is aimed toward the talar resection surface;
- and
- (c) cutting into the talar resection surface using the power driver.
Dependencies are inferred from the claim text.