Patents by Inventor John F. Rudan
John F. Rudan 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: 11026750Abstract: An apparatus and method for surgical tracking comprises an imaging device that generates an image of a tissue volume; an electromagnetic (EM) sensor that creates a reference frame for EM tracking in three dimensions; at least one EM sensor adapted to be attached to the tissue to track local deformation and movement of the tissue volume; a processor that registers the image with the EM-tracked tissue volume and surgical tool in real time, and produces an output; and a feedback device that provides feedback about the location of the surgical tool relative to the tissue volume, based on the processor output. Embodiments are particularly useful in soft tissue, such as breast, where deformation before and during a procedure such as tumor resection complicate tracking of the tissue volume and a surgical tool.Type: GrantFiled: January 22, 2016Date of Patent: June 8, 2021Assignees: Queen's University at Kingston, Kingston Health Sciences CentreInventors: Gabor Fichtinger, Tamas Ungi, John F. Rudan, Andras Lasso, C. Jay Engel, Gabrielle Gauvin, Caitlin Yeo
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Patent number: 9693878Abstract: Provided is a preoperatively designed guidance tool for intraoperative use during acetabular cup replacement surgery, comprising: a patient-specific template having at least one surface that registers with a selected surface of the patient's acetabulum; and a guide portion that provides an orientation or a position and orientation of an acetabular cup according to a preoperatively planned orientation or position and orientation. The guidance tool may further comprise a verification tool that cooperates with the guide portion and includes at least one mating surface that registers with a selected surface of the patient's anatomy, wherein correct positioning of the verification tool on the patient's anatomy confirms correct orientation of the patient-specific template in the patient's acetabulum.Type: GrantFiled: November 17, 2010Date of Patent: July 4, 2017Assignee: Queen's University at KingstonInventors: Manuela Kunz, John F. Rudan
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Publication number: 20160270855Abstract: Presented is a preoperatively designed guidance tool for intraoperative use during bone or joint surgery wherein the guidance tool is specific to the anatomy of the patient being treated. The guidance tool comprises a body portion, a mating surface provided on the body portion for positioning the guidance tool on a corresponding registration surface of a patient's anatomy. The guidance tool further comprises at least one guide mechanism provided on the body portion for guiding a medical instrument at one or more preoperatively defined trajectories relative to a patient's anatomy. In the event of misalignment, the at least one guide mechanism is adjustable to alter the one or more preoperatively defined trajectories if necessary during intraoperative use. Also presented is a preoperative process for designing the guidance tool.Type: ApplicationFiled: May 27, 2016Publication date: September 22, 2016Inventors: Manuela Kunz, John F. Rudan
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Publication number: 20160242855Abstract: An apparatus and method for surgical tracking comprises an imaging device that generates an image of a tissue volume; an electromagnetic (EM) sensor that creates a reference frame for EM tracking in three dimensions; at least one EM sensor adapted to be attached to the tissue to track local deformation and movement of the tissue volume; a processor that registers the image with the EM-tracked tissue volume and surgical tool in real time, and produces an output; and a feedback device that provides feedback about the location of the surgical tool relative to the tissue volume, based on the processor output. Embodiments are particularly useful in soft tissue, such as breast, where deformation before and during a procedure such as tumor resection complicate tracking of the tissue volume and a surgical tool.Type: ApplicationFiled: January 22, 2016Publication date: August 25, 2016Inventors: Gabor Fichtinger, Tamas Ungi, John F. Rudan, Andras Lasso, C. Jay Engel, Gabrielle Gauvin, Caitlin Yeo
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Patent number: 9351744Abstract: Presented is a preoperatively designed guidance tool for intraoperative use during bone or joint surgery wherein the guidance tool is specific to the anatomy of the patient being treated. The guidance tool comprises a body portion, a mating surface provided on the body portion for positioning the guidance tool on a corresponding registration surface of a patient's anatomy. The guidance tool further comprises at least one guide mechanism provided on the body portion for guiding a medical instrument at one or more preoperatively defined trajectories relative to a patient's anatomy. In the event of misalignment, the at least one guide mechanism is adjustable to alter the one or more preoperatively defined trajectories if necessary during intraoperative use. Also presented is a preoperative process for designing the guidance tool.Type: GrantFiled: May 14, 2013Date of Patent: May 31, 2016Assignee: Queen's University at KingstonInventors: Manuela Kunz, John F. Rudan
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Patent number: 8444651Abstract: Presented is a preoperatively designed guidance tool for intraoperative use during bone or joint surgery wherein the guidance tool is specific to the anatomy of the patient being treated. The guidance tool comprises a body portion, a mating surface provided on the body portion for positioning the guidance tool on a corresponding registration surface of a patient's anatomy. The guidance tool further comprises at least one guide mechanism provided on the body portion for guiding a medical instrument at one or more preoperatively defined trajectories relative to a patient's anatomy. In the event of misalignment, the at least one guide mechanism is adjustable to alter the one or more preoperatively defined trajectories if necessary during intraoperative use. Also presented is a preoperative process for designing the guidance tool.Type: GrantFiled: May 14, 2008Date of Patent: May 21, 2013Assignee: Queen's University at KingstonInventors: Manuela Kunz, John F. Rudan
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Publication number: 20120245647Abstract: Provided is a preoperatively designed guidance tool for intraoperative use during acetabular cup replacement surgery, comprising: a patient-specific template having at least one surface that registers with a selected surface of the patient's acetabulum; and a guide portion that provides an orientation or a position and orientation of an acetabular cup according to a preoperatively planned orientation or position and orientation. The guidance tool may further comprise a verification tool that cooperates with the guide portion and includes at least one mating surface that registers with a selected surface of the patient's anatomy, wherein correct positioning of the verification tool on the patient's anatomy confirms correct orientation of the patient-specific template in the patient's acetabulum.Type: ApplicationFiled: November 17, 2010Publication date: September 27, 2012Inventors: Manuela Kunz, John F. Rudan
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Publication number: 20080287954Abstract: Presented is a preoperatively designed guidance tool for intraoperative use during bone or joint surgery wherein the guidance tool is specific to the anatomy of the patient being treated. The guidance tool comprises a body portion, a mating surface provided on the body portion for positioning the guidance tool on a corresponding registration surface of a patient's anatomy. The guidance tool further comprises at least one guide mechanism provided on the body portion for guiding a medical instrument at one or more preoperatively defined trajectories relative to a patient's anatomy. In the event of misalignment, the at least one guide mechanism is adjustable to alter the one or more preoperatively defined trajectories if necessary during intraoperative use. Also presented is a preoperative process for designing the guidance tool.Type: ApplicationFiled: May 14, 2008Publication date: November 20, 2008Inventors: Manuela Kunz, John F. Rudan
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Patent number: 6713527Abstract: The invention relates to surgical bone cement compositions and more particularly to bone cement compositions having aneasthetic properties, and to methods for producing analgesia.Type: GrantFiled: November 15, 2001Date of Patent: March 30, 2004Assignee: Queen's University at KingstonInventors: David M. Bond, John F. Rudan, Michael A. Adams
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Publication number: 20020137813Abstract: The invention relates to surgical bone cement compositions and more particularly to bone cement compositions having aneasthetic properties, and to methods for producing analgesia.Type: ApplicationFiled: November 15, 2001Publication date: September 26, 2002Applicant: Queen's University at Kingston.Inventors: David M. Bond, John F. Rudan, Michael A. Adams
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Patent number: 6355705Abstract: A polymethacrylate or other bone cement composition having analgesic properties is described. Bone cements containing up to 5% by weight of a local anaesthetic agent, such as lidocaine, have been demonstrated to elute sufficient lidocaine to provide an analgesic effect in vivo.Type: GrantFiled: April 1, 1997Date of Patent: March 12, 2002Assignee: Queen's University at KingstonInventors: David M. Bond, John F. Rudan
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Patent number: 5021061Abstract: A thin plate patello-femoral-tibial resurfacing prosthesis is described. The patellar component is a metallic shell which is designed to be as thin as possible so as to retain maximum natural bone thickness and hence strength. The metallic patellar component articulates with a plastic insert in a metallic femoral component. The tibial bearing area of the femoral component is metallic for articulation with a plastic proximal tibial prosthesis.Type: GrantFiled: September 26, 1990Date of Patent: June 4, 1991Assignee: Queen's University at KingstonInventors: Henk W. Wevers, John F. Rudan