Patents by Inventor Jeffery A. VanDiepenbos
Jeffery A. VanDiepenbos has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9918844Abstract: A tibial prosthesis has a bearing component configured for an anterior-medial insertion, which advantageously avoids the extensor mechanism of the knee. A tibial tray may include a banana-shaped boss that corresponds to a notch formed in the bearing component. After the bearing component is inserted along the anterior-medial path, the boss is received within the notch by rotating the bearing component with respect to the tibial tray. This rotation seat the bearing component upon the tibial tray in the manner of a fixed-bearing prosthesis. Alternatively, the boss and notch may define angled central axes which allow straight anterior-medial insertion of the bearing component and locking engagement to the tibial tray.Type: GrantFiled: January 21, 2016Date of Patent: March 20, 2018Assignee: Zimmer, Inc.Inventors: Adam H. Sanford, Brian D. Byrd, Ramesh Annayappa, Jeffery A. VanDiepenbos
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Patent number: 9901462Abstract: A femoral component instrument includes a rotatable locking mechanism such as a post and is capable of interchangeable use between posterior stabilizing (“PS”) and cruciate retaining (“CR”) femoral component types via the locking mechanism. The instrument further includes a modular pad so that a pad specific to the prosthesis type may be chosen. Each pad of a particular femoral component type is useable with a variety of sizes of that femoral component type. The locking mechanism of the instrument is alternatively useable with a variety of femoral component types. The locking end of the post keys to a pad aperture to rotatably align the post to an appropriate securement position. If a femoral component is not locked to the pad, the post of the instrument moves from an exposed position proximal to the proximal pad surface to a retracted position distal to the proximal pad surface, thereby permitting impaction.Type: GrantFiled: November 17, 2015Date of Patent: February 27, 2018Assignee: Zimmer, Inc.Inventors: Nolan C. Jones, Jeffery A. VanDiepenbos
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Patent number: 9713477Abstract: The present disclosure relates to systems and methods for preparing a distal end of a femur for receiving a knee prosthesis. A method can include installing a valgus guide onto an intermedullary rod, coupling a drill guide with said valgus guide, resting a boom tip of said drill guide on a high part of the femur, drilling a hole into a distal portion of a medial condyle using a first drill hole of said drill guide and drilling a hole into a distal portion of a lateral condyle using a second drill hole of said drill guide, and, subsequent to drilling the first and second drill holes, resecting the distal portion of the medial condyle of the femur and the distal portion of the lateral condyle of the femur. A system can include a valgus guide, a drill guide, and a resection tower, among other things.Type: GrantFiled: January 7, 2014Date of Patent: July 25, 2017Assignee: Zimmer, Inc.Inventors: Nolan C. Jones, Jeffery A. VanDiepenbos, Justin J. May
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Publication number: 20170007273Abstract: Methods and apparatuses including an apparatus for guiding a femoral bone cut during knee replacement surgery are disclosed. The apparatus can comprise a cut guide having a first side, a second side, a third side, and one or more slots. The first side can be configured to interface with a resected surface of a femur. The second side can be spaced from the first side. The one or more slots can be defined by the apparatus and extend from the first side to the second side. The third side can be disposed between the first side and the second side and can have at least one projection extending therefrom. The at least one projection can be configured to guide a cutting tool into the one or more slots.Type: ApplicationFiled: July 6, 2016Publication date: January 12, 2017Inventors: Andrew Freiberg, Lindsey R. Rolston, Jeffery A. VanDiepenbos, Anthony Romano, Nolan C. Jones, Jason S. Toler, Brian D. Earl
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Publication number: 20160367271Abstract: Methods and apparatuses including apparatuses that can be used in a unicompartmental knee replacement procedure, a bicompartmental knee replacement procedure comprised of two unicompartmental knee replacements, a knee replacement procedure that utilizes a single femoral component and two unicompartmental tibial components, and other types of knee replacement procedures are disclosed. According to one example, an apparatus for guiding a tibial bone cut during knee replacement surgery is disclosed. The apparatus can comprise a mounting portion and a cutting portion. The mounting portion can be configured to couple with an alignment mechanism. The cutting portion can be connected to the mounting portion and can define a capture for a proximal cut. The cutting portion can have an aperture disposed adjacent a first end of the capture.Type: ApplicationFiled: June 16, 2016Publication date: December 22, 2016Inventors: Nolan C. Jones, Lindsey R. Rolston, Jeffery A. VanDiepenbos, Brian D. Earl, Anthony Romano, Andrew Freiberg
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Publication number: 20160135959Abstract: A tibial prosthesis has a bearing component configured for an anterior-medial insertion, which advantageously avoids the extensor mechanism of the knee. A tibial tray may include a banana-shaped boss that corresponds to a notch formed in the bearing component. After the bearing component is inserted along the anterior-medial path, the boss is received within the notch by rotating the bearing component with respect to the tibial tray. This rotation seat the bearing component upon the tibial tray in the manner of a fixed-bearing prosthesis. Alternatively, the boss and notch may define angled central axes which allow straight anterior-medial insertion of the bearing component and locking engagement to the tibial tray.Type: ApplicationFiled: January 21, 2016Publication date: May 19, 2016Inventors: Adam H. Sanford, Brian D. Byrd, Ramesh Annayappa, Jeffery A. VanDiepenbos
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Patent number: 9283082Abstract: A tibial prosthesis has a bearing component configured for an anterior-medial insertion, which advantageously avoids the extensor mechanism of the knee. A tibial tray may include a banana-shaped boss that corresponds to a notch formed in the bearing component. After the bearing component is inserted along the anterior-medial path, the boss is received within the notch by rotating the bearing component with respect to the tibial tray. This rotation seats the bearing component upon the tibial tray in the manner of a fixed-bearing prosthesis. Alternatively, the boss and notch may define angled central axes which allow straight anterior-medial insertion of the bearing component and locking engagement to the tibial tray.Type: GrantFiled: May 21, 2014Date of Patent: March 15, 2016Assignee: Zimmer, Inc.Inventors: Adam H. Sanford, Brian D. Byrd, Ramesh Annayappa, Jeffery A. VanDiepenbos
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Publication number: 20160067057Abstract: A femoral component instrument includes a rotatable locking mechanism such as a post and is capable of interchangeable use between posterior stabilizing (“PS”) and cruciate retaining (“CR”) femoral component types via the locking mechanism. The instrument further includes a modular pad so that a pad specific to the prosthesis type may be chosen. Each pad of a particular femoral component type is useable with a variety of sizes of that femoral component type. The locking mechanism of the instrument is alternatively useable with a variety of femoral component types. The locking end of the post keys to a pad aperture to rotatably align the post to an appropriate securement position. If a femoral component is not locked to the pad, the post of the instrument moves from an exposed position proximal to the proximal pad surface to a retracted position distal to the proximal pad surface, thereby permitting impaction.Type: ApplicationFiled: November 17, 2015Publication date: March 10, 2016Inventors: Nolan C. Jones, Jeffery A. VanDiepenbos
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Publication number: 20160051265Abstract: Tools or other instruments can be used by a surgeon to complete an orthopedic procedure. One tool can include a resection tower and a valgus guide. The resection tower can include a cutting block and a dial coupled with the cutting block. The resection tower can be configured such that rotational movement of the dial, about an axis, effectuates movement of the cutting block along a plane substantially parallel with the axis. The dial, when rotated in a first direction, can move between a first position, which corresponds to a minimum cutting depth of the cutting block, and a second position, which corresponds to a maximum cutting depth of the cutting block. The valgus guide can be coupled with the resection tower and includes a rotatable member. The rotatable member can include an angular surface with one or more variable depth splines providing varus/valgus angle adjustment of the cutting block.Type: ApplicationFiled: November 5, 2015Publication date: February 25, 2016Inventors: Nolan C. Jones, Jeffery A. VanDiepenbos
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Patent number: 9265510Abstract: An apparatus includes a cut guide including a locking area, an alignment guide, and a connect mechanism to connect the cut guide to the alignment guide, wherein the connect mechanism includes a cone lock connect mechanism configured to engage with the cut guide locking area.Type: GrantFiled: February 6, 2013Date of Patent: February 23, 2016Assignee: Zimmer, Inc.Inventors: Steven E. Dietzel, Tim Yoko, Anthony Romano, Jeffery A. VanDiepenbos, Nolan C. Jones
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Patent number: 9220611Abstract: A femoral component instrument includes a rotatable locking mechanism such as a post and is capable of interchangeable use between posterior stabilizing (“PS”) and cruciate retaining (“CR”) femoral component types via the locking mechanism. The instrument further includes a modular pad so that a pad specific to the prosthesis type may be chosen. Each pad of a particular femoral component type is useable with a variety of sizes of that femoral component type. The locking mechanism of the instrument is alternatively useable with a variety of femoral component types. The locking end of the post keys to a pad aperture to rotatably align the post to an appropriate securement position. If a femoral component is not locked to the pad, the post of the instrument moves from an exposed position proximal to the proximal pad surface to a retracted position distal to the proximal pad surface, thereby permitting impaction.Type: GrantFiled: July 12, 2011Date of Patent: December 29, 2015Assignee: Zimmer, Inc.Inventors: Nolan C. Jones, Jeffery A. VanDiepenbos
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Patent number: 9204897Abstract: Tools or other instruments can be used by a surgeon to complete an orthopedic procedure. One tool can include a resection tower and a valgus guide. The resection tower can include a cutting block and a dial coupled with the cutting block. The resection tower can be configured such that rotational movement of the dial, about an axis, effectuates movement of the cutting block along a plane substantially parallel with the axis. The dial, when rotated in a first direction, can move between a first position, which corresponds to a minimum cutting depth of the cutting block, and a second position, which corresponds to a maximum cutting depth of the cutting block. The valgus guide can be coupled with the resection tower and includes a rotatable member. The rotatable member can include an angular surface with one or more variable depth splines providing varus/valgus angle adjustment of the cutting block.Type: GrantFiled: December 19, 2012Date of Patent: December 8, 2015Assignee: Zimmer, Inc.Inventors: Nolan C. Jones, Jeffery A. VanDiepenbos
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Publication number: 20140277213Abstract: An orthopedic device holder and related kit are disclosed. The orthopedic device holder can include a body portion having a proximal end and a distal end, the body portion defining a bore positioned between the proximal end and the distal end, a plunger portion having a proximal end and a distal end, the plunger portion extending into an opening of the body portion and defining a second bore, and a locking lever that, when activated, is configured to move between a first position and a second position and transition the first bore and the second bore from a locked configuration to an unlocked configuration.Type: ApplicationFiled: March 5, 2014Publication date: September 18, 2014Inventors: Nolan C. Jones, Jeffery A. VanDiepenbos
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Publication number: 20140257506Abstract: A tibial prosthesis has a bearing component configured for an anterior-medial insertion, which advantageously avoids the extensor mechanism of the knee. A tibial tray may include a banana-shaped boss that corresponds to a notch formed in the bearing component. After the bearing component is inserted along the anterior-medial path, the boss is received within the notch by rotating the bearing component with respect to the tibial tray. This rotation seat the bearing component upon the tibial tray in the manner of a fixed-bearing prosthesis. Alternatively, the boss and notch may define angled central axes which allow straight anterior-medial insertion of the bearing component and locking engagement to the tibial tray.Type: ApplicationFiled: May 21, 2014Publication date: September 11, 2014Applicant: Zimmer, Inc.Inventors: Adam H. Sanford, Brian D. Byrd, Ramesh Annayappa, Jeffery A. VanDiepenbos
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Publication number: 20140194883Abstract: The present disclosure relates to systems and methods for preparing a distal end of a femur for receiving a knee prosthesis. A method can include installing a valgus guide onto an intermedullary rod, coupling a drill guide with said valgus guide, resting a boom tip of said drill guide on a high part of the femur, drilling a hole into a distal portion of a medial condyle using a first drill hole of said drill guide and drilling a hole into a distal portion of a lateral condyle using a second drill hole of said drill guide, and, subsequent to drilling the first and second drill holes, resecting the distal portion of the medial condyle of the femur and the distal portion of the lateral condyle of the femur. A system can include a valgus guide, a drill guide, and a resection tower, among other things.Type: ApplicationFiled: January 7, 2014Publication date: July 10, 2014Applicant: Zimmer, Inc.Inventors: Nolan C. Jones, Jeffery A. VanDiepenbos, Justin J. May
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Patent number: 8764840Abstract: A tibial prosthesis has a bearing component configured for an anterior-medial insertion, which advantageously avoids the extensor mechanism of the knee. A tibial tray may include a banana-shaped boss that corresponds to a notch formed in the bearing component. After the bearing component is inserted along the anterior-medial path, the boss is received within the notch by rotating the bearing component with respect to the tibial tray. This rotation seat the bearing component upon the tibial tray in the manner of a fixed-bearing prosthesis. Alternatively, the boss and notch may define angled central axes which allow straight anterior-medial insertion of the bearing component and locking engagement to the tibial tray.Type: GrantFiled: July 22, 2011Date of Patent: July 1, 2014Assignee: Zimmer, Inc.Inventors: Adam H. Sanford, Brian D. Byrd, Ramesh Annayappa, Jeffery A. VanDiepenbos
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Patent number: 8758354Abstract: An extramedullary cut guide alignment assembly allows various adjustments to the cut guide without introducing bending stresses in the rest of the assembly. More particularly, the angular orientation of the cut guide with respect to the tibia may be freely changed during use, while maintaining the angular orientation of the proximal fixation arm of the alignment assembly with respect to the proximal tibial surface to which the arm is affixed. To achieve this decoupling of the angular orientations of the fixation arm and cut guide, the proximal fixation arm is pivotably mounted to the cut guide alignment assembly. Thus, the alignment assembly may be adjusted as necessary to achieve a desired angular orientation of the cut guide mounted thereto, while the pivotable junction between the alignment assembly and the proximal fixation arm automatically adjusts to accommodate the changing angular arrangement.Type: GrantFiled: October 22, 2010Date of Patent: June 24, 2014Assignee: Zimmer, Inc.Inventors: Abraham P. Habegger, Jeffery A. VanDiepenbos, Lindsay M. Hack
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Publication number: 20130345821Abstract: A provisional femoral component, in one embodiment, including at least one first visual indicator and at least one second visual indicator, the first and second visual indicators providing indicating means for simultaneously visually representing a first profile of a first femoral prosthesis and a second profile of a second femoral prosthesis. In another embodiment, a provisional femoral component including a patellofemoral flange having two sulci and a central ridge between the two sulci. In this manner, the provisional femoral component can be positioned on a resected distal femur surface of both a right and left knee joint.Type: ApplicationFiled: August 30, 2013Publication date: December 26, 2013Applicant: Zimmer, Inc.Inventors: Nolan C. Jones, Jeffery A. VanDiepenbos
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Patent number: 8551179Abstract: A provisional femoral component, in one embodiment, including at least one first visual indicator and at least one second visual indicator, the first and second visual indicators providing indicating means for simultaneously visually representing a first profile of a first femoral prosthesis and a second profile of a second femoral prosthesis. In another embodiment, a provisional femoral component including a patellofemoral flange having two sulci and a central ridge between the two sulci. In this manner, the provisional femoral component can be positioned on a resected distal femur surface of both a right and left knee joint.Type: GrantFiled: June 16, 2011Date of Patent: October 8, 2013Assignee: Zimmer, Inc.Inventors: Nolan C. Jones, Jeffery A. VanDiepenbos, Abraham P. Habegger, Brian D. Earl
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Publication number: 20130204260Abstract: An apparatus includes a cut guide including a locking area, an alignment guide, and a connect mechanism to connect the cut guide to the alignment guide, wherein the connect mechanism includes a cone lock connect mechanism configured to engage with the cut guide locking area.Type: ApplicationFiled: February 6, 2013Publication date: August 8, 2013Applicant: Zimmer, Inc.Inventors: Steven E. Dietzel, Tim Yoko, Anthony Romano, Jeffery A. VanDiepenbos, Nolan C. Jones