Patents by Inventor Kirti P. Kamdar
Kirti P. Kamdar 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: 10028784Abstract: This invention relates to medical methods, instruments and systems for creating a controlled lesion using temperature to control the growth of the lesion. The treatment can be used in any tissue area and is particularly useful in or around a vertebral body. The features relating to the methods and devices described herein can be applied in any region of soft or hard tissue including bone or hard tissue.Type: GrantFiled: August 6, 2014Date of Patent: July 24, 2018Assignee: DFINE, INC.Inventors: Steve Kramer, Kirti P. Kamdar, Andrew Kohm, Robert Poser, Aaron Germain
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Patent number: 9918766Abstract: Devices and method discussed for device for delivering a pressurized substance to an opening in bone within a vertebral column, useful to provide access to structures in the vertebral so that a substance, such as bone cement can be delivered through a lumen or portal or for providing access to the opening in bone by a separate instrument.Type: GrantFiled: March 15, 2013Date of Patent: March 20, 2018Assignee: DFine, Inc.Inventors: Christopher U. Phan, Andrew Kohm, Robert Poser, Kirti P. Kamdar
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Publication number: 20140350542Abstract: This invention relates to medical methods, instruments and systems for creating a controlled lesion using temperature to control the growth of the lesion. The treatment can be used in any tissue area and is particularly useful in or around a vertebral body. The features relating to the methods and devices described herein can be applied in any region of soft or hard tissue including bone or hard tissue.Type: ApplicationFiled: August 6, 2014Publication date: November 27, 2014Applicant: DFINE, INC.Inventors: Steve KRAMER, Kirti P. KAMDAR, Andrew KOHM, Robert POSER, Aaron GERMAIN
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Patent number: 8864760Abstract: This invention relates to medical methods, instruments and systems for creating a controlled lesion using temperature to control the growth of the lesion. The treatment can be used in any tissue area and is particularly useful in or around a vertebral body. The features relating to the methods and devices described herein can be applied in any region of soft or hard tissue including bone or hard tissue.Type: GrantFiled: March 11, 2013Date of Patent: October 21, 2014Assignee: Dfine, Inc.Inventors: Steve Kramer, Kirti P. Kamdar, Andrew Kohm, Robert Poser, Aaron Germain
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Publication number: 20140163566Abstract: Devices and method discussed for device for delivering a pressurized substance to an opening in bone within a vertebral column, useful to provide access to structures in the vertebral so that a substance, such as bone cement can be delivered through a lumen or portal or for providing access to the opening in bone by a separate instrument.Type: ApplicationFiled: March 15, 2013Publication date: June 12, 2014Applicant: DFINE, INC.Inventors: Christopher U. PHAN, Andrew KOHM, Robert POSER, Kirti P. KAMDAR
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Patent number: 8591507Abstract: This invention relates to medical methods, instruments and systems for creating a controlled lesion using temperature to control the growth of the lesion. The treatment can be used in any tissue area and is particularly useful in or around a vertebral body. The features relating to the methods and devices described herein can be applied in any region of soft or hard tissue including bone or hard tissue.Type: GrantFiled: January 31, 2013Date of Patent: November 26, 2013Assignee: Dfine, Inc.Inventors: Steve Kramer, Kirti P. Kamdar, Andrew Kohm, Robert Poser, Aaron Germain
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Publication number: 20130261621Abstract: This invention relates to medical methods, instruments and systems for creating a controlled lesion using temperature to control the growth of the lesion. The treatment can be used in any tissue area and is particularly useful in or around a vertebral body. The features relating to the methods and devices described herein can be applied in any region of soft or hard tissue including bone or hard tissue.Type: ApplicationFiled: January 31, 2013Publication date: October 3, 2013Applicant: DFINE, INC.Inventors: Steve KRAMER, Kirti P. KAMDAR, Andrew KOHM, Robert POSER, Aaron GERMAIN
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Publication number: 20130261615Abstract: This invention relates to medical methods, instruments and systems for creating a controlled lesion using temperature to control the growth of the lesion. The treatment can be used in any tissue area and is particularly useful in or around a vertebral body. The features relating to the methods and devices described herein can be applied in any region of soft or hard tissue including bone or hard tissue.Type: ApplicationFiled: March 11, 2013Publication date: October 3, 2013Applicant: DFINE, INC.Inventors: Steve KRAMER, Kirti P. KAMDAR, Andrew KOHM, Robert POSER, Aaron GERMAIN
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Patent number: 6921414Abstract: An endoluminal prosthesis includes a coiled body and a graft material covering at least part of the coiled body to create a coiled stent graft. The average stent graft diameter to turns width ratio may be about 0.8 to 1 to about 2.4 to 1 when expanded.Type: GrantFiled: December 3, 2002Date of Patent: July 26, 2005Assignee: Vascular Architects, Inc.Inventors: Katherine J. Klumb, Thomas J. Fogarty, Kirti P. Kamdar, Bradley B. Hill
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Publication number: 20040153142Abstract: A coiled stent (196) has a coiled stent body with a main body portion (106) and end portions (108). The end portions may be substantially less stiff than the body portion to help prevent tissue trauma. A graft material (124) may be used to cover at least the main body portion to create a coiled stent graft (122) in which adjacent turns (128) have gaps defined therebetween to create a generally helical gap (130). The coiled stent may have side elements (10) separated by connector elements (112) and be placeable in a contracted, reduced diameter state and in a relaxed, expanded diameter state. The connector elements are preferably generally parallel to the stent axis when placed in the contracted, reduced-diameter state, typically tightly wrapped around a placement catheter (136).Type: ApplicationFiled: December 9, 2003Publication date: August 5, 2004Applicant: VASCULAR ARCHITECTS, INC., A Delaware corporationInventors: Katherine J. Klumb, Thomas J. Fogarty, Kirti P. Kamdar, Bradley B. Hill
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Patent number: 6660032Abstract: A coiled stent (196) has a coiled stent body with a main body portion (106) and end portions (108). The end portions may be substantially less stiff than the body portion to help prevent tissue trauma. A graft material (124) may be used to cover at least the main body portion to create a coiled stent graft (122) in which adjacent turns (128) have gaps defined therebetween to create a generally helical gap (130). The coiled stent may have side elements (10) separated by connector elements (112) and be placeable in a contracted, reduced diameter state and in a relaxed, expanded diameter state. The connector elements are preferably generally parallel to the stent axis when placed in the contracted, reduced-diameter state, typically tightly wrapped around a placement catheter (136).Type: GrantFiled: April 12, 2001Date of Patent: December 9, 2003Assignee: Vascular Architects, Inc.Inventors: Katherine J. Klumb, Thomas J. Fogarty, Kirti P. Kamdar, Bradley B. Hill
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Publication number: 20030225444Abstract: An endoluminal prosthesis includes a coiled body and a graft material covering at least part of the coiled body to create a coiled stent graft. The average stent graft diameter to turns width ratio may be about 0.8 to 1 to about 2.4 to 1 when expanded.Type: ApplicationFiled: December 3, 2002Publication date: December 4, 2003Applicant: VASCULAR ARCHITECTS, INC., a Delaware corporationInventors: Katherine J. Klumb, Thomas J. Fogarty, Kirti P. Kamdar, Bradley B. Hill
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Patent number: 6645237Abstract: A coiled stent (196) has a coiled stent body with a main body portion (106) and end portions (108). The end portions may be substantially less stiff than the body portion to help prevent tissue trauma. A graft material (124) may be used to cover at least the main body portion to create a coiled stent graft (122) in which adjacent turns (128) have gaps defined therebetween to create a generally helical gap (130). The coiled stent may have side elements (10) separated by connector elements (112) and be placeable in a contracted, reduced diameter state and in a relaxed, expanded diameter state. The connector elements are preferably generally parallel to the stent axis when placed in the contracted, reduced-diameter state, typically tightly wrapped around a placement catheter (136).Type: GrantFiled: September 22, 1999Date of Patent: November 11, 2003Assignee: Vascular Architects, Inc.Inventors: Katherine J. Klumb, Thomas J. Fogarty, Kirti P. Kamdar, Bradley B. Hill
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Patent number: 6572648Abstract: An endoluminal prosthesis includes a coiled body and a graft material covering at least part of the coiled body to create a coiled stent graft. The average stent graft diameter to turns width ratio may be about 0.8 to 1 to about 2.4 to 1 when expanded.Type: GrantFiled: June 30, 2000Date of Patent: June 3, 2003Assignee: Vascular Architects, Inc.Inventors: Katherine J. Klumb, Thomas J. Fogarty, Kirti P. Kamdar, Bradley B. Hill
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Patent number: 6488700Abstract: A catheter assembly includes a coiled endoluminal prosthesis (122, 190, 198) and a catheter (136) having at least first and second telescoping shafts (138, 140, 142). The prosthesis is releasably engaged to the distal ends (144, 146, 148) of the telescoping shafts. The prosthesis is capable of assuming a second, expanded diameter state from a first, reduced diameter state. The length and number of turns (128) of the coiled prosthesis can be changed by the relative translation and rotation of the shafts. The catheter assembly is especially useful for placing a coiled stent graft (122), in which one turn (132, 134) of the prosthesis has a greater pitch than the adjacent turns, at the intersection (184) of a bifurcation within a blood vessel (182). Remotely viewable marker elements (188, 190, 191, 192, 193, 195, 197) may be used and include a marker element (193, 190A, 197) configured to indicate orientation as well as axial position of the prosthesis.Type: GrantFiled: April 4, 2001Date of Patent: December 3, 2002Assignee: Vascular Architects, Inc.Inventors: Katherine J. Klumb, Thomas J. Fogarty, Kirti P. Kamdar, Bradley B. Hill
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Publication number: 20020082682Abstract: A prosthesis, for use within a hollow body structure of a patient, comprises a coiled body having a radially-extending openings, the coiled body being movable from a radially-contracted state to a radially-expanded state. A material extends along a coiled path along the entire coiled body. A dispensable, biologically active agent is associated with at least one of the coiled body and material. The material may comprise a coiled sleeve of material having inner and outer surfaces, the inner surface defining a sleeve interior containing the coiled body. The dispensable agent may be, for example, on the outer surface of the material, incorporated into the material to create an agent/material matrix, or on the inner surface of the material or within the sleeve interior.Type: ApplicationFiled: July 20, 2001Publication date: June 27, 2002Applicant: Vascular Architects, Inc.Inventors: Bruce J. Barclay, Kirti P. Kamdar, Katherine J. Klumb
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Patent number: 6409652Abstract: The present invention provides a device, system and method for uniformly delivering a radiation dose over the surface area of a stenosed vessel during or after a percutaneous transluminal angioplasty procedure. A helical balloon is inflated in the region to be treated, preferably in contact with the vessel wall, and a radiation source is drawn through the helical coils of the balloon to provide a uniform dosage. Alternatively, the helical balloon is disposed within a cylindrical balloon and the helical balloon containing a radiation source with at least one coil is drawn through the cylindrical balloon.Type: GrantFiled: September 20, 2000Date of Patent: June 25, 2002Assignees: Vascular Architects, Inc., Varian Medical Systems, Inc.Inventors: Kirti P. Kamdar, Majid Leonard Riaziat, William K. Wheeler, Raisa Pavlyuchkova
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Publication number: 20020077693Abstract: A covered, coiled drug delivery stent (145) includes a coiled, radially-expandable stent wall or body (139) with a porous covering overlying the outer surface (139A) of the stent body. A drug (147) may be associated with the porous covering by, for example, being in the form of a porous covering/drug matrix (141) or being a layer above or below the porous covering. Structure may be used to delay the migration of the drug to the patient by, for example, using a protective layer (143) to cover the stent body, porous covering, and drug. The protective layer may be removed by being biodegradable, or by being at least partially pulled off of the structure. The drug may be an integral part of a biodegradable material so that the drug is exposed only when the biodegradable material biodegrades. The drug may also be within biodegradable microencapsulation material.Type: ApplicationFiled: December 19, 2000Publication date: June 20, 2002Inventors: Bruce J. Barclay, Kirti P. Kamdar
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Publication number: 20010044621Abstract: A coiled stent (196) has a coiled stent body with a main body portion (106) and end portions (108). The end portions may be substantially less stiff than the body portion to help prevent tissue trauma. A graft material (124) may be used to cover at least the main body portion to create a coiled stent graft (122) in which adjacent turns (128) have gaps defined therebetween to create a generally helical gap (130). The coiled stent may have side elements (10) separated by connector elements (112) and be placeable in a contracted, reduced diameter state and in a relaxed, expanded diameter state. The connector elements are preferably generally parallel to the stent axis when placed in the contracted, reduced-diameter state, typically tightly wrapped around a placement catheter (136).Type: ApplicationFiled: September 22, 1999Publication date: November 22, 2001Inventors: KATHERINE J. KLUMB, THOMAS J. FOGARTY, KIRTI P. KAMDAR, BRADLEY B. HILL
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Publication number: 20010020182Abstract: A coiled stent (196) has a coiled stent body with a main body portion (106) and end portions (108). The end portions may be substantially less stiff than the body portion to help prevent tissue trauma. A graft material (124) may be used to cover at least the main body portion to create a coiled stent graft (122) in which adjacent turns (128) have gaps defined therebetween to create a generally helical gap (130). The coiled stent may have side elements (10) separated by connector elements (112) and be placeable in a contracted, reduced diameter state and in a relaxed, expanded diameter state. The connector elements are preferably generally parallel to the stent axis when placed in the contracted, reduced-diameter state, typically tightly wrapped around a placement catheter (136).Type: ApplicationFiled: April 12, 2001Publication date: September 6, 2001Inventors: Katherine J. Klumb, Thomas J. Fogarty, Kirti P. Kamdar, Bradley B. Hill