Patents by Inventor Jeffrey A. Sarge
Jeffrey A. Sarge 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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Publication number: 20160361115Abstract: An ablation catheter assembly including a source of ablation energy coupled to a lead wire disposed within an elongated catheter shaft having a proximal end and a distal end, the lead wire having an electrode disposed at the distal end. The ablation catheter assembly including a flexible tip connected to the distal end of the elongated catheter shaft, and a source of conductive fluid coupled to the flexible tip to direct flow of the conductive fluid into contact with the electrode, wherein the conductive fluid provides a conductive path from the electrode to tissue to be ablated.Type: ApplicationFiled: June 9, 2016Publication date: December 15, 2016Inventors: Robert F. Bencini, Ajitkumar B. Nair, Dushyant J. Shah, Simon N.H. Nguyen, Jeffrey A. Sarge, Kevin L. Bencini
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Publication number: 20160213280Abstract: An example system for sensing catheter contact is disclosed. The system includes an elongate tubular member, a tip member and a flexible support structure including a support member. A proximal portion of the support structure may be coupled to the distal end of the tubular member while a distal portion may be coupled to the proximal end of the tip member. The system may also include an electroactive polymer member disposed along the support member, wherein displacement of the support member activates the electroactive polymer member such that an electrical response is output from the electroactive polymer member. A processor, electrically coupled to the electroactive polymer member, may be configured to evaluate the electrical response from the electroactive polymer member to determine a contact force of the tip member with tissue.Type: ApplicationFiled: January 22, 2016Publication date: July 28, 2016Inventors: Jeffrey A. Sarge, Darrell L. Rankin, John C. Potosky
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Publication number: 20140336621Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: ApplicationFiled: July 25, 2014Publication date: November 13, 2014Inventors: Lex P. Jansen, Thomas Yung-Hui Chien, Perry A. Fukui, Jeffrey A. Sarge, Lawrence C. Alpert
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Patent number: 8795255Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: GrantFiled: November 12, 2012Date of Patent: August 5, 2014Assignee: Boston Scientific Scimed, Inc.Inventors: Lex P. Jansen, Thomas Yung-Hui Chien, Perry Alvin Fukui, Jeffrey A. Sarge, Lawrence Charles Alpert
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Patent number: 8317772Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: GrantFiled: March 10, 2011Date of Patent: November 27, 2012Assignee: Target Therapeutics, Inc.Inventors: Lex P. Jansen, Thomas Yung-Hui Chien, Perry Alvin Fukui, Jeffrey A. Sarge, Lawrence Charles Alpert
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Publication number: 20110172643Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: ApplicationFiled: March 10, 2011Publication date: July 14, 2011Applicant: TARGET THERAPEUTICS, INC.Inventors: Lex P. Jansen, Thomas Yung-Hui Chien, Perry Alvin Fukui, Jeffrey A. Sarge, Lawrence Charles Alpert
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Patent number: 7909812Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: GrantFiled: September 6, 2006Date of Patent: March 22, 2011Assignee: Target Therapeutics, Inc.Inventors: Lex P. Jansen, Thomas Yung-Hui Chien, Perry Alvin Fukui, Jeffrey A. Sarge, Lawrence Charles Alpert
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Publication number: 20070049903Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: ApplicationFiled: September 6, 2006Publication date: March 1, 2007Inventors: Lex Jansen, Thomas Chien, Perry Fukui, Jeffrey Sarge, Lawrence Alpert
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Patent number: 7104979Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: GrantFiled: February 19, 2002Date of Patent: September 12, 2006Assignee: Target Therapeutics, Inc.Inventors: Lex P. Jansen, Thomas Yung-Hui Chien, Perry Alvin Fukui, Jeffrey A. Sarge, Lawrence Charles Alpert
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Publication number: 20050004649Abstract: A stent delivery device which includes a balloon having at least one radiopaque region or portion.Type: ApplicationFiled: July 23, 2004Publication date: January 6, 2005Applicant: SCIMED LIFE SYSTEMS, INC.Inventors: Bhavesh Mistry, Jeffrey Sarge, Frank Musbach
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Publication number: 20040034298Abstract: A radiographic sizing tool comprising a radiotranslucent carrier with a plurality of spaced apart radiopaque objects disposed therein. The radiopaque objects have the same shape and dimension throughout at least two different planes of view, and preferably all planes of view, to reduce parallax during radiography. For example, the radiopaque objects may comprise spheres having different diameters, preferably in uniform increments and arranged in order of (increasing or decreasing) diameter. The radiographic sizing tool is particularly beneficial in angiography procedures for sizing coronary vessels and stents.Type: ApplicationFiled: August 13, 2002Publication date: February 19, 2004Applicant: SCIMED LIFE SYSTEMS, INC.Inventors: Brooks A. Johnson, Jeffrey A. Sarge, Jeremy J. Gillis, Dennis B. Werner
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Patent number: 6575959Abstract: A catheter for use in vasculature or other lumens within body structures includes a shaft formed from an elongated polymeric flexible tube. A thin polymeric sleeve is placed over a proximal portion of the catheter shaft. A hub structure is injection molded over the sleeve with a polymer of the same type as the polymeric sleeve. The heat from the injection molded polymer of the hub body is sufficient to heat the polymeric sleeve, causing the polymeric sleeve to bond the hub body to the sleeve, and the sleeve to the catheter shaft. In this way, the injection molded polymeric hub structure is fused to the catheter shaft, with a unified polymeric bond, and without the use of adhesive. The plastic sleeve is sufficiently thick to protect the catheter shaft from the heat of the injection molded molten polymer while still allowing the catheter shaft and sleeve to bond to the shaft.Type: GrantFiled: December 27, 1999Date of Patent: June 10, 2003Assignee: SciMed Life Systems, Inc.Inventors: Jeffrey A. Sarge, Lex P. Jansen, Lawrence C. Alpert, Greg P Welsh
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Patent number: 6508804Abstract: A reinforced intravascular catheter adapted for use in performing minimally invasive medical procedures. A catheter, in accordance with the present invention, comprising an inner tubular member having an outer surface, a proximal end, a distal end, and a lumen extending therethrough. The catheter further including a support member overlaying the inner tubular member and conforming to the outer surface thereof, the support member including at least one filament forming a plurality of turns. The support member further including at least one multi-layered portion having a first layer and a plurality of additional layers, each layer comprising a plurality of turns formed by at least one filament, the plurality of additional layers each overlaying at least the first layer. The catheter also including an outer layer overlaying both the support member and the inner tubular member. A method of fabricating a catheter in accordance with the present invention is also disclosed.Type: GrantFiled: July 28, 1999Date of Patent: January 21, 2003Assignee: SciMed Life Systems, Inc.Inventors: Jeffrey A. Sarge, Henry Nita, Simon Ngoc Huu Nguyen
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Publication number: 20020198559Abstract: A stent delivery device which includes a balloon having at least one radiopaque region or portion.Type: ApplicationFiled: June 26, 2001Publication date: December 26, 2002Inventors: Bhavesh Mistry, Jeffrey A. Sarge, Frank A. Musbach
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Publication number: 20020123738Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: ApplicationFiled: February 19, 2002Publication date: September 5, 2002Applicant: Target Therapeutics, Inc.Inventors: Lex P. Jansen, Thomas Yung-Hui Chien, Perry Alvin Fukui, Jeffrey A. Sarge, Lawrence Charles Alpert
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Patent number: 6368316Abstract: A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between the proximal and distal ends. The elongate tubular member comprises a relatively stiff proximal section and a relatively flexible distal section. The proximal section includes an inner tubular liner, a first stiffener comprising a metal alloy, and a second stiffener comprising a non-metal alloy. The first and second stiffeners are coaxially wound exterior to the proximal inner liner. The distal section includes a distal inner tubular liner and the second stiffener coaxially wound exterior to the distal inner liner. The first stiffener terminates before reaching the distal section.Type: GrantFiled: June 11, 1998Date of Patent: April 9, 2002Assignee: Target Therapeutics, Inc.Inventors: Lex P. Jansen, Thomas Yung-Hui Chien, Perry Alvin Fukui, Jeffrey A. Sarge, Lawrence Charles Alpert
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Publication number: 20010041881Abstract: A reinforced intravascular catheter adapted for use in performing minimally invasive medical procedures. A catheter, in accordance with the present invention, comprising an inner tubular member having an outer surface, a proximal end, a distal end, and a lumen extending therethrough. The catheter further including a support member overlaying the inner tubular member and conforming to the outer surface thereof, the support member including at least one filament forming a plurality of turns. The support member further including at least one multi-layered portion having a first layer and a plurality of additional layers, each layer comprising a plurality of turns formed by at least one filament, the plurality of additional layers each overlaying at least the first layer. The catheter also including an outer layer overlaying both the support member and the inner tubular member. A method of fabricating a catheter in accordance with the present invention is also disclosed.Type: ApplicationFiled: July 28, 1999Publication date: November 15, 2001Applicant: SciMed Life Systems, Inc.Inventors: JEFFREY A. SARGE, HENRY NITA, SIMON NGOC HUU NGUYEN
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Patent number: 6165163Abstract: This is a catheter assembly which may be used in accessing a tissue target within the body, typically a target which is accessible through the vascular system. Central to the invention is the use of a braided metallic reinforcing member, typically of a stainless steel or super-elastic alloy ribbon, situated within the catheter body in such a way to create a catheter section having a thin wall, controlled stiffness, and high resistance to kinking. The distal-most section of the catheter is much more flexible than are other braided catheters of the genre due to choice of braid construction features of that distal-most section. The distal-most braid, and optionally, intermediate braid components are constructed to be more flexible than the more proximal sections due to deletion of ribbons from the braid structure, change of ribbon material, and change of pitch. The various sections include braids which may have a consistent pitch or may vary in pitch along the axis of the catheter or catheter section.Type: GrantFiled: March 26, 1999Date of Patent: December 26, 2000Assignee: Target Therapeutics, Inc.Inventors: Thomas Yung-Hui Chien, Lex P. Jansen, Henry Nita, Jeffrey A. Sarge
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Patent number: 5995208Abstract: Apparatus and a method for monitoring a percentage of the oxygen saturation in the hemoglobin of blood flowing through a blood vessel. An optical sensor that detects the percentage oxygen saturation in blood is disposed proximate a proximal end of the catheter. A thermistor is disposed adjacent to the distal end of the catheter and it is employed to detect changes in blood temperature that indicate the position of the catheter's distal end in the blood vessel. Indicia or marks visible at intervals on the outer surface of the catheter enable a medical practitioner to determine the length of the catheter that has been introduced into the blood vessel. A strain relief that is flexible and resists stretching extends along the length of the catheter. For flushing the distal end of the catheter, a fluid supply may be connected to a lumen running through the catheter to provide the flushing fluid.Type: GrantFiled: May 28, 1998Date of Patent: November 30, 1999Assignee: Abbott LaboratoriesInventors: Jeffrey A. Sarge, Scott T. Tsuchitani, Harlow B. Christianson, Gerald G. Vurek, John M. Sperinde, Darrell H. Ogi
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Patent number: 5951539Abstract: This invention is a surgical device. In particular, it is a catheter suitable for accessing a tissue target within the body, typically a target which is accessible through the vascular system. Central to the invention is the use of at least pair of wound or counterwound reinforcing members situated within the wall of the catheter body in such a way to achieve a catheter having an exceptionally thin wall, excellent kink-resistance, and controlled stiffness.Type: GrantFiled: December 19, 1997Date of Patent: September 14, 1999Assignee: Target Therpeutics, Inc.Inventors: Henry Nita, Lex P. Jansen, Peter Kyone Park, Gene Samson, Erik T. Engelson, Jeffrey A. Sarge