Patents by Inventor Neil Duggal
Neil Duggal 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: 8894709Abstract: The present invention provides artificial disc prostheses, methods and instrumentation for implantation and revision thereof. Each prosthesis may comprise superior and inferior end plates and a nucleus positioned between articular surfaces of the end plates. The end plates may have planar bone engagement surfaces with a plurality of self-cutting teeth. The articular surfaces of the end plates may be planar or include a flattened portion. The nucleus includes superior and inferior articular surfaces which may comprise flattened portions such that when the articular surfaces of the nucleus and the end plates are placed in cooperation in a preferred orientation, the flattened and/or planar portions are aligned. Each prosthesis may provide flexion/extension, anterior/posterior translation, lateral bending, and/or axial rotation degrees of freedom.Type: GrantFiled: October 27, 2008Date of Patent: November 25, 2014Assignee: Synergy Disc Replacement, Inc.Inventors: Neil Duggal, Louise C. Raymond, Joshua A. Butters, Jeffery D. Arnett, Dylan M. Hushka
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Patent number: 8852193Abstract: Methods and instrumentation for implantation of an intervertebral disc prosthesis are provided. A guide tool with sagittal and coronal reference features guides placement of guide pins relative to a sagittal plane and a coronal plane of the vertebrae. A retainer lockable to the guide pins has a ratcheting mechanism providing distraction or compression. A rasp, planer or other tools may be aligned to the retainer and inserted into the intervertebral space to prepare the vertebral endplates. An interoperatively adjustable trial is alignable to the retainer and measures an angularity of the intervertebral space. A prosthesis with keying features may be mounted to a prosthesis inserter with complementary features, held by pivotable arms and compressed between prongs. The inserter may be aligned to the retainer and advanced to implant the prosthesis in the intervertebral space. A prosthesis remover may grip one prosthetic end plate and extract the entire prosthesis.Type: GrantFiled: November 25, 2008Date of Patent: October 7, 2014Assignee: Synergy Disc Replacement, Inc.Inventors: Dylan Hushka, Joshua A. Butters, Jeffery D. Arnett, Neil Duggal
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Patent number: 8808336Abstract: An implantable fixation system for fusing a joint between a first bone and a second bone. The system may include an anchor, standoff, bolt, and cortical washer. The system may be implanted across the joint along a single trajectory, the length of the system adjustable to provide compressive force between the anchor and the cortical washer. The system may be implanted across a tibiotalar joint with the anchor positioned in the sinus tarsi. A spacing member may be inserted between the two bones and the fixation system implanted to extend through an opening in the spacing member. The spacing member may be anatomically shaped and/or provide deformity correction. An ankle arthroplasty system may include a tibial plate, a talar plate, and a bearing insert. The plates may be anchored to the tibia and talus along a single trajectory. The ankle arthroplasty system may be revisable to a fusion system.Type: GrantFiled: July 13, 2010Date of Patent: August 19, 2014Inventors: Neil Duggal, Joshua A. Butters, Jeffery Arnett
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Publication number: 20130325009Abstract: An implantable fixation system for fusing a joint between a first bone and a second bone. The system may include an intramedullary nail and an anchor. The intramedullary nail may include a standoff and a compression bolt. The system may be implanted across the joint along an intramedullary trajectory. The length of the system may be adjustable to provide compressive force between the anchor and the compression bolt. The system may be implanted across a tibiotalar joint with the anchor positioned in the sinus tarsi. A spacing member may be inserted between the two bones and the fixation system implanted to extend through an opening in the spacing member. The spacing member may be anatomically shaped and/or provide deformity correction. An ankle arthroplasty system may include a tibial plate, a talar plate, and a bearing insert. The plates may be anchored to the tibia and talus along a single trajectory. The ankle arthroplasty system may be revisable to a fusion system.Type: ApplicationFiled: August 12, 2013Publication date: December 5, 2013Applicants: Neil Duggal, IMDS CorporationInventors: Neil Duggal, Joshua A. Butters, Jeffery D. Arnett
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Patent number: 8585744Abstract: An implantable fixation system for fusing a joint between a first bone and a second bone. The system may include an anchor, standoff, bolt, and cortical washer. The system may be implanted across the joint along a single trajectory, the length of the system adjustable to provide compressive force between the anchor and the cortical washer. The system may be implanted across a tibiotalar joint with the anchor positioned in the sinus tarsi. A spacing member may be inserted between the two bones and the fixation system implanted to extend through an opening in the spacing member. The spacing member may be anatomically shaped and/or provide deformity correction. An ankle arthroplasty system may include a tibial plate, a talar plate, and a bearing insert. The plates may be anchored to the tibia and talus along a single trajectory. The ankle arthroplasty system may be revisable to a fusion system.Type: GrantFiled: July 13, 2010Date of Patent: November 19, 2013Assignees: IMDS CorporationInventors: Neil Duggal, Joshua A. Butters, Jeffery Arnett
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Publication number: 20130238083Abstract: A system for treating an aneurysm includes an expandable barrier positionable to bridge an aneurysm neck. The barrier may comprise a fiber mesh, a balloon or a molly anchor member, and may unroll, unfold, or inflate from a compact configuration to an expanded configuration. Expansion of the barrier may be greater radially than axially. A vaso-occlusive member comprising a coil or balloon may be deposited in the aneurysm. Another aneurysm treatment system comprises an outer fenestrated stent and/or an inner fenestrated sleeve, which may be implanted together adjacent an aneurysm neck to regulate blood flow to the aneurysm. The sleeve may be movable relative to the stent to open or occlude the fenestrations, which may vary in size, shape, and distribution. An intra-luminal vessel occlusion device comprises a stent and a sheath. A drawstring may be actuated to gradually close a sheath orifice to control blood flow through the vessel.Type: ApplicationFiled: April 25, 2013Publication date: September 12, 2013Applicants: IMDS CorporationInventors: Neil Duggal, Robert De Hoog, Donald Heaton Lee, Louise C. Raymond, Joshua A. Butters
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Patent number: 8470013Abstract: A system for treating an aneurysm includes an expandable barrier positionable to bridge an aneurysm neck. The barrier may comprise a fiber mesh, a balloon or a molly anchor member, and may unroll, unfold, or inflate from a compact configuration to an expanded configuration. Expansion of the barrier may be greater radially than axially. A vaso-occlusive member comprising a coil or balloon may be deposited in the aneurysm. Another aneurysm treatment system comprises an outer fenestrated stent and/or an inner fenestrated sleeve, which may be implanted together adjacent an aneurysm neck to regulate blood flow to the aneurysm. The sleeve may be movable relative to the stent to open or occlude the fenestrations, which may vary in size, shape, and distribution. An intra-luminal vessel occlusion device comprises a stent and a sheath. A drawstring may be actuated to gradually close a sheath orifice to control blood flow through the vessel.Type: GrantFiled: October 20, 2009Date of Patent: June 25, 2013Assignees: IMDS CorporationInventors: Neil Duggal, Robert John De Hoog, Donald H. Lee, Louise C. Raymond, Joshua A. Butters
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Patent number: 8454699Abstract: The present invention provides artificial disc prostheses, methods and instrumentation for implantation and revision thereof. Each prosthesis may comprise superior and inferior end plates and a nucleus positioned between articular surfaces of the end plates. The end plates may have planar bone engagement surfaces with a plurality of self-cutting teeth. The articular surfaces of the end plates may be planar or include a flattened portion. The nucleus includes superior and inferior articular surfaces which may comprise flattened portions such that when the articular surfaces of the nucleus and the end plates are placed in cooperation in a preferred orientation, the flattened and/or planar portions are aligned. Each prosthesis may provide flexion/extension, anterior/posterior translation, lateral bending, and/or axial rotation degrees of freedom.Type: GrantFiled: October 27, 2008Date of Patent: June 4, 2013Assignee: Synergy Disc Replacement, IncInventors: Neil Duggal, Louise C. Raymond, Joshua A. Butters, Jeffery D. Arnett, Dylan M. Hushka
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Publication number: 20130123848Abstract: Facet fixation implants include a cap member with a circular base portion and an eccentric raised portion. The raised portion includes first and second lobes and is smoothly contoured to provide an unobtrusive profile when implanted. Beveled teeth project from the implant to provide fixation and compression across the facet joint. The cap member includes an offset aperture which receives a fastener. Tools, guiding instruments and methods for implantation of the implants are disclosed.Type: ApplicationFiled: October 29, 2012Publication date: May 16, 2013Applicant: IMDS CORPORATIONInventors: Neil Duggal, Dylan M. Hushka, Joshua A. Butters, Nicholas Slater
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Publication number: 20130110183Abstract: Eccentrically shaped bone fixation implants interact with bone fragments or joints to compress the bone fragments or joint bones together. The eccentrically shaped bone fixation implants can have longer and shorter portions along an axis and a plurality of teeth with opposing beveled surfaces in different configurations to vary both the direction and amplitude of the compressive forces applied to the bone fragments or joint bones. Instrumentation for implanting and orienting the eccentrically shaped bone fixation implants are also disclosed herein.Type: ApplicationFiled: February 6, 2012Publication date: May 2, 2013Applicant: MedicineLodge, Inc. dba IMDS Co-InnovationInventors: Neil Duggal, Dylan Hushka, Nicholas Slater, Joshua A. Butters
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Patent number: 8303631Abstract: A system for providing dynamic stabilization and balance control at a vertebral motion segment has first and second bridge elements and at least one bias element. The bridge elements anchor to adjacent vertebrae with polyaxially adjustable anchoring members, and the bias elements attach to each bridge element to span between them. Each bias element has two fixation portions and a bias body extending between the fixation portions. Each bias element may comprise an elastically deformable material to provide dynamic stabilization with motion, or may comprise rigid material to provide rigid stabilization, and both bias element types may be included in one system. The bias elements are attachable to the bridge elements at discrete attachment locations, or at non-discrete attachment locations. Alternate embodiments may include three or more bridge elements on adjacent vertebrae, and multiple bias elements. A tensioning tool may provide adjustable tension to an elastically deformable bias element.Type: GrantFiled: June 17, 2009Date of Patent: November 6, 2012Assignees: MedicineLodge Inc.Inventors: Neil Duggal, T. Wade Fallin, Dylan M. Hushka, Joshua A. Butters
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Patent number: 8231677Abstract: An artificial disc prosthesis is provided. The prosthesis enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate. The prosthesis may have a central keel on one end plate and an offset pair of keels on a second end plate. The nucleus may engage a slot or trough in an inner surface of an end plate. The trough can be open on the posterior or anterior end to allow the nucleus to slide into the trough without undue distraction of adjacent vertebrae. The nucleus can be prevented from moving out of the trough by inserting a stop in the trough.Type: GrantFiled: November 15, 2010Date of Patent: July 31, 2012Assignee: Synergy Disc Replacement, Inc.Inventors: Neil Duggal, Daniel R. Baker, Robert Conta, Carly A. Thaler, David T. Stinson
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Patent number: 8172904Abstract: The present invention relates to methods and devices for the treatment of disc disease and spinal deformities with an artificial disc replacement.Type: GrantFiled: September 21, 2006Date of Patent: May 8, 2012Assignee: Synergy Disc Replacement, Inc.Inventors: Neil Duggal, Louise Raymond, Daniel R. Baker, Robert Conta, Carly A. Thaler, David T. Stinson
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Patent number: 8133282Abstract: Methods and instrumentation for implantation of an intervertebral disc prosthesis are provided. A guide tool with sagittal and coronal reference features guides placement of guide pins relative to a sagittal plane and a coronal plane of the vertebrae. A retainer lockable to the guide pins has a ratcheting mechanism providing distraction or compression. A rasp, planer or other tools may be aligned to the retainer and inserted into the intervertebral space to prepare the vertebral endplates. An interoperatively adjustable trial is alignable to the retainer and measures an angularity of the intervertebral space. A prosthesis with keying features may be mounted to a prosthesis inserter with complementary features, held by pivotable arms and compressed between prongs. The inserter may be aligned to the retainer and advanced to implant the prosthesis in the intervertebral space. A prosthesis remover may grip one prosthetic end plate and extract the entire prosthesis.Type: GrantFiled: November 25, 2008Date of Patent: March 13, 2012Assignee: Synergy Disc Replacement, Inc.Inventors: Dylan Hushka, Joshua A. Butters, Jeffery D. Arnett, Neil Duggal
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Patent number: 8100974Abstract: An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.Type: GrantFiled: June 30, 2005Date of Patent: January 24, 2012Assignee: Synergy Disc Replacement, Inc.Inventors: Neil Duggal, Louise Raymond, Daniel R. Baker, Robert Conta, Carly A. Thaler, David T. Stinson
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Publication number: 20110320003Abstract: An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.Type: ApplicationFiled: September 12, 2011Publication date: December 29, 2011Applicant: SYNERGY DISC REPLACEMENT, INC.Inventors: Neil Duggal, Louise Raymond, Daniel R. Baker, Robert Conta, Carly A. Thaler, David T. Stinson
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Patent number: 8038716Abstract: An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.Type: GrantFiled: September 30, 2008Date of Patent: October 18, 2011Assignee: Synergy Disc Replacement, IncInventors: Neil Duggal, Louise Raymond, Daniel R. Baker, Robert Conta, Carly A. Thaler, David T. Stinson
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Publication number: 20110190829Abstract: An implantable fixation system for fusing a joint between a first bone and a second bone. The system may include an anchor, standoff, bolt, and cortical washer. The system may be implanted across the joint along a single trajectory, the length of the system adjustable to provide compressive force between the anchor and the cortical washer. The system may be implanted across a tibiotalar joint with the anchor positioned in the sinus tarsi. A spacing member may be inserted between the two bones and the fixation system implanted to extend through an opening in the spacing member. The spacing member may be anatomically shaped and/or provide deformity correction. An ankle arthroplasty system may include a tibial plate, a talar plate, and a bearing insert. The plates may be anchored to the tibia and talus along a single trajectory. The ankle arthroplasty system may be revisable to a fusion system.Type: ApplicationFiled: July 13, 2010Publication date: August 4, 2011Applicants: MedicineLodge, Inc. dba IMDS Co-InnovationInventors: Neil Duggal, Joshua A. Butters, Jeffery D. Arnett
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Publication number: 20110166609Abstract: An implantable fixation system for fusing a joint between a first bone and a second bone. The system may include an anchor, standoff, bolt, and cortical washer. The system may be implanted across the joint along a single trajectory, the length of the system adjustable to provide compressive force between the anchor and the cortical washer. The system may be implanted across a tibiotalar joint with the anchor positioned in the sinus tarsi. A spacing member may be inserted between the two bones and the fixation system implanted to extend through an opening in the spacing member. The spacing member may be anatomically shaped and/or provide deformity correction. An ankle arthroplasty system may include a tibial plate, a talar plate, and a bearing insert. The plates may be anchored to the tibia and talus along a single trajectory. The ankle arthroplasty system may be revisable to a fusion system.Type: ApplicationFiled: July 13, 2010Publication date: July 7, 2011Applicants: MedicineLodge, Inc. dba IMDS Co-InnovationInventors: Neil Duggal, Joshua A. Butters, Jeffery D. Arnett
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Publication number: 20110166608Abstract: An implantable fixation system for fusing a joint between a first bone and a second bone. The system may include an anchor, standoff, bolt, and cortical washer. The system may be implanted across the joint along a single trajectory, the length of the system adjustable to provide compressive force between the anchor and the cortical washer. The system may be implanted across a tibiotalar joint with the anchor positioned in the sinus tarsi. A spacing member may be inserted between the two bones and the fixation system implanted to extend through an opening in the spacing member. The spacing member may be anatomically shaped and/or provide deformity correction. An ankle arthroplasty system may include a tibial plate, a talar plate, and a bearing insert. The plates may be anchored to the tibia and talus along a single trajectory. The ankle arthroplasty system may be revisable to a fusion system.Type: ApplicationFiled: July 13, 2010Publication date: July 7, 2011Applicants: MEDICINELODGE, INC. DBA IMDS CO-INNOVATIONInventors: Neil Duggal, Joshua A. Butters, Jeffery D. Arnett