Patents by Inventor Jeffrey C. Lotz
Jeffrey C. Lotz 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: 8344728Abstract: NMR spectroscopy is performed on intervertebral disc tissue. Extent of degeneration is determined based on the NMR spectroscopy. Correlation between NMR spectral regions and at least one of tissue degeneration and pain are made. Accordingly, NMR spectroscopy is used to determine location and/or extent of at least one of degeneration or pain associated with a region of tissue, such as for example in particular disc degeneration, or discogenic pain. NMR spectral peak ratios, such as between N-Acetyl/cho and cho/carb, are readily acquired and analyzed to predict degree of tissue degeneration and/or pain for: tissue samples using HR-MAS spectroscopy; and larger portions of anatomy such as joint segments such as a spine, using clinical 3 T MRI systems with surface head or knee coils; and tissue regions such as discs within spines of living patients using 3 T MRI systems with a surface spine coil, thus providing a completely non-invasive diagnostic toolset and method to image and localize degeneration and/or pain.Type: GrantFiled: July 27, 2007Date of Patent: January 1, 2013Assignee: The Regents of The University of CaliforniaInventors: Sharmila Majumdar, John Kurhanewicz, Jeffrey C. Lotz, David S. Bradford, Kayvan Keshari
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Publication number: 20110087087Abstract: An MR Spectroscopy (MRS) system and approach is provided for diagnosing painful and non-painful discs in chronic, severe low back pain patients (DDD-MRS). A DDD-MRS pulse sequence generates and acquires DDD-MRS spectra within intervertebral disc nuclei for later signal processing & diagnostic analysis. An interfacing DDD-MRS signal processor receives output signals of the DDD-MRS spectra acquired and is configured to optimize signal-to-noise ratio (SNR) by an automated system that selectively conducts optimal channel selection, phase and frequency correction, and frame editing as appropriate for a given acquisition series. A diagnostic processor calculates a diagnostic value for the disc based upon a weighted factor set of criteria that uses MRS data extracted from the acquired and processed MRS spectra along regions associated with multiple chemicals that have been correlated to painful vs. non-painful discs.Type: ApplicationFiled: October 14, 2009Publication date: April 14, 2011Inventors: James C. Peacock, III, John P. Claude, Paul H. Kane, Jeffrey C. Lotz
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Publication number: 20110087314Abstract: A long-term implantable ultrasound therapy system and method is provided that provides directional, focused ultrasound to localized regions of tissue within body joints, such as spinal joints. An ultrasound emitter or transducer is delivered to a location within the body associated with the joint and heats the target region of tissue associated with the joint from the location. Such locations for ultrasound transducer placement may include for example in or around the intervertebral discs, or the bony structures such as vertebral bodies or posterior vertebral elements such as facet joints. Various modes of operation provide for selective, controlled heating at different temperature ranges to provide different intended results in the target tissue, which ranges are significantly effected by pre-stressed tissues such as in-vivo intervertebral discs. In particular, treatments above 70 degrees C., and in particular 75 degrees C.Type: ApplicationFiled: October 5, 2010Publication date: April 14, 2011Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Chris J. Diederich, Jeffrey C. Lotz, Will H. Nau, JR., David S. Bradford
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Publication number: 20110022133Abstract: An ultrasound therapy system and method is provided that provides directional, focused ultrasound to localized regions of tissue within body joints, such as spinal joints. An ultrasound emitter or transducer is delivered to a location within the body associated with the joint and heats the target region of tissue associated with the joint from the location. Such locations for ultrasound transducer placement may include for example in or around the intervertebral discs, or the bony structures such as vertebral bodies or posterior vertebral elements such as facet joints. Various modes of operation provide for selective, controlled heating at different temperature ranges to provide different intended results in the target tissue, which ranges are significantly affected by pre-stressed tissues such as in-vivo intervertebral discs. In particular, treatments above 70 degrees C., and in particular 75 degrees C.Type: ApplicationFiled: May 17, 2010Publication date: January 27, 2011Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Chris J. Diederich, Jeffrey C. Lotz, Will Nau, David S. Bradford
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Patent number: 7819826Abstract: A long-term implantable ultrasound therapy system and method is provided that provides directional, focused ultrasound to localized regions of tissue within body joints, such as spinal joints. An ultrasound emitter or transducer is delivered to a location within the body associated with the joint and heats the target region of tissue associated with the joint from the location. Such locations for ultrasound transducer placement may include for example in or around the intervertebral discs, or the bony structures such as vertebral bodies or posterior vertebral elements such as facet joints. Various modes of operation provide for selective, controlled heating at different temperature ranges to provide different intended results in the target tissue, which ranges are significantly effected by pre-stressed tissues such as in-vivo intervertebral discs. In particular, treatments above 70 degrees C., and in particular 75 degrees C.Type: GrantFiled: January 23, 2003Date of Patent: October 26, 2010Assignee: The Regents of the University of CaliforniaInventors: Chris J. Diederich, Jeffrey C. Lotz, Will Nau, David S. Bradford, John P. O'Banion, James C. Peacock, III
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Patent number: 7641691Abstract: A bioactive/biodegradable nucleus implant for repairing degenerated intervertebral discs that is inflated inside the nucleus space after the degenerated nucleus has been removed to re-pressurize the nuclear space within the intervertebral disc. The implant is inflated with a high molecular weight fluid, gel or combination of fluid and elastomer, preferably an under-hydrated HA hydrogel/growth factor mixture with or without host cells. The implant includes an internal, integral, self-sealing valve that allows one-way filling of the implant after it is placed within the disc, and is made from a material that allows fibrous in growth thereby stabilizing the implant. A variety of substances can be incorporated into the implant to promote healing, prevent infection, or arrest pain.Type: GrantFiled: August 16, 2006Date of Patent: January 5, 2010Assignee: The Regents of the University of CaliforniaInventors: Jeffrey C. Lotz, Olivier K. Colliou, David S. Bradford
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Publication number: 20090234457Abstract: A bioactive/biodegradable nucleus implant for repairing degenerated intervertebral discs that is inflated inside the nucleus space after the degenerated nucleus has been removed to re-pressurize the nuclear space within the intervertebral disc. The implant is inflated with a high molecular weight fluid, gel or combination of fluid and elastomer, preferably an under-hydrated HA hydrogel/growth factor mixture with or without host cells. The implant includes an internal, integral, self-sealing valve that allows one-way filling of the implant after it is placed within the disc, and is made from a material that allows fibrous in growth thereby stabilizing the implant. A variety of substances can be incorporated into the implant to promote healing, prevent infection, or arrest pain.Type: ApplicationFiled: March 2, 2009Publication date: September 17, 2009Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey C. Lotz, David S. Bradford
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Publication number: 20090030308Abstract: Pain factors are labeled with targeted agents or markers delivered into the body. The labeled pain factors are imaged with appropriate imaging tools in a manner allowing selective identification and localization of areas of pain source or transmission. The labeled pain factors allow spatial differentiation in the imaging sufficient to specify the location of the pain so as to drive therapeutic decisions and techniques in order to treat the pain. Pain factors labeled and imaged in this manner may include one or more of nerve factors, blood vessel factors, cellular factors, and inflammation factors. Labeled markers may include for example radioactive materials (e.g. tritiated or iodinated molecules) or other materials such as metal (e.g. gold) nanoparticles. Intermediary binding materials may be used, such as for example bi-specific antibodies. Therapeutic components of the system and method include for example localized energy delivery or ablation treatments, or local drug or other chemical delivery.Type: ApplicationFiled: March 21, 2008Publication date: January 29, 2009Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: David S. Bradford, Jeffrey C. Lotz
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Publication number: 20080243194Abstract: Dynamic stabilization apparatus and methods in the context of a spinal implant configured to constrain intervertebral movement, where the constraint is meant to eliminate unwanted, non-physiologic motions. The system provides dynamic stability to motion in a compromised spinal joint by allowing motion along a centrode of the instant axis of rotation (IAR) that substantially approximates the normal centrode for the respective spinal joint. The system and method is adapted to provide stabilized motion in a spinal joint such that the IAR shifts cephalad during typical flexion ranges beyond a normal resting range of motion, and shifts posteriorly during typical extension ranges beyond the normal resting range of motion.Type: ApplicationFiled: March 26, 2008Publication date: October 2, 2008Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey C. Lotz, David S. Bradford
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Patent number: 7211055Abstract: An ultrasound therapy system and method is provided that provides directional, focused ultrasound to localized regions of tissue within body joints, such as spinal joints. An ultrasound emitter or transducer is delivered to a location within the body associated with the joint and heats the target region of tissue associated with the joint from the location. Such locations for ultrasound transducer placement may include for example in or around the intervertebral discs, or the bony structures such as vertebral bodies or posterior vertebral elements such as facet joints. Various modes of operation provide for selective, controlled heating at different temperature ranges to provide different intended results in the target tissue, which ranges are significantly effected by pre-stressed tissues such as in-vivo intervertebral discs. In particular, treatments above 70 degrees C., and in particular 75 degrees C.Type: GrantFiled: January 15, 2003Date of Patent: May 1, 2007Assignee: The Regents of the University of CaliforniaInventors: Chris J. Diederich, Jeffrey C. Lotz, Will Nau, David S. Bradford
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Patent number: 7156877Abstract: A bioactive/biodegradable nucleus implant for repairing degenerated intervertebral discs that is inflated inside the nucleus space after the degenerated nucleus has been removed to re-pressurize the nuclear space within the intervertebral disc. The implant is inflated with a high molecular weight fluid, gel or combination of fluid and elastomer, preferably an under-hydrated HA hydrogel/growth factor mixture with or without host cells. The implant includes an internal, integral, self-sealing valve that allows one-way filling of the implant after it is placed within the disc, and is made from a material that allows fibrous in growth thereby stabilizing the implant. A variety of substances can be incorporated into the implant to promote healing, prevent infection, or arrest pain.Type: GrantFiled: May 24, 2002Date of Patent: January 2, 2007Assignee: The Regents of the University of CaliforniaInventors: Jeffrey C. Lotz, Olivier K. Colliou, David S. Bradford
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Publication number: 20030225331Abstract: A long-term implantable ultrasound therapy system and method is provided that provides directional, focused ultrasound to localized regions of tissue within body joints, such as spinal joints. An ultrasound emitter or transducer is delivered to a location within the body associated with the joint and heats the target region of tissue associated with the joint from the location. Such locations for ultrasound transducer placement may include for example in or around the intervertebral discs, or the bony structures such as vertebral bodies or posterior vertebral elements such as facet joints. Various modes of operation provide for selective, controlled heating at different temperature ranges to provide different intended results in the target tissue, which ranges are significantly effected by pre-stressed tissues such as in-vivo intervertebral discs. In particular, treatments above 70 degrees C., and in particular 75 degrees C.Type: ApplicationFiled: January 23, 2003Publication date: December 4, 2003Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Chris J. Diederich, Jeffrey C. Lotz, Will Nau, David S. Bradford, John P. O'Banion, James C. Peacock
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Publication number: 20030216721Abstract: An ultrasound therapy system and method is provided that provides directional, focused ultrasound to localized regions of tissue within body joints, such as spinal joints. An ultrasound emitter or transducer is delivered to a location within the body associated with the joint and heats the target region of tissue associated with the joint from the location. Such locations for ultrasound transducer placement may include for example in or around the intervertebral discs, or the bony structures such as vertebral bodies or posterior vertebral elements such as facet joints. Various modes of operation provide for selective, controlled heating at different temperature ranges to provide different intended results in the target tissue, which ranges are significantly effected by pre-stressed tissues such as in-vivo intervertebral discs. In particular, treatments above 70 degrees C., and in particular 75 degrees C.Type: ApplicationFiled: January 15, 2003Publication date: November 20, 2003Applicant: THE REGENTS OF THE UNIVERSITY OF CALFORNIAInventors: Chris J. Diederich, Jeffrey C. Lotz, Will Nau, David S. Bradford, Elizabeth Wistrom, Elisa Bass
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Publication number: 20030033017Abstract: A bioactive/biodegradable nucleus implant for repairing degenerated intervertebral discs that is inflated inside the nucleus space after the degenerated nucleus has been removed to re-pressurize the nuclear space within the intervertebral disc. The implant is inflated with a high molecular weight fluid, gel or combination of fluid and elastomer, preferably an under-hydrated HA hydrogel/growth factor mixture with or without host cells. The implant includes an internal, integral, self-sealing valve that allows one-way filling of the implant after it is placed within the disc, and is made from a material that allows fibrous in growth thereby stabilizing the implant. A variety of substances can be incorporated into the implant to promote healing, prevent infection, or arrest pain.Type: ApplicationFiled: May 24, 2002Publication date: February 13, 2003Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jeffrey C. Lotz, Olivier K. Colliou, David S. Bradford