Patents by Inventor Andrew J. Dusbabek
Andrew J. Dusbabek 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: 20030050600Abstract: An evacuation sheath assembly and method of treating occluded vessels which reduces the risk of distal embolization during vascular interventions is provided. The evacuation sheath assembly includes an elongated tube defining an evacuation lumen having proximal and distal ends. A proximal sealing surface is provided on a proximal portion of the tube and is configured to form a seal with a lumen of a guided catheter. A distal sealing surface is provided on a distal portion of the tube and is configured to form a seal with a blood vessel. Obturator assemblies and infusion catheter assemblies are provided to be used with the evacuation sheath assembly. A method of treatment of a blood vessel using the evacuation sheath assembly includes advancing the evacuation sheath assembly into the blood vessel through a guide catheter. Normal antegrade blood flow in the blood vessel proximate to the stenosis is stopped and the stenosis is treated.Type: ApplicationFiled: August 9, 2002Publication date: March 13, 2003Applicant: Velocimed, L.L.C.Inventors: Thomas V. Ressemann, Steven S. Hackett, Andrew J. Dusbabek, Dennis W. Wahr
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Patent number: 6506201Abstract: An assembly for delivery and deployment of an inflation expandable stent within a vessel is comprised of a catheter, an inflation expandable stent, an expandable balloon, and a securement device such as a corrugated tube component or an expandable tube component. The tube component is mounted on the inner shaft beneath the balloon and provides increased securement to the stent in a reduced delivery diameter to maintain the stent on the catheter during delivery to the deployment site. The tube component is adhered to the inner shaft and has a plurality of ribs or is fluid expandable to no more than the delivery diameter, and may be comprised of more than one separately inflatable pouch expandable to provide the stent with a substrate seat with increased friction and to decrease the slack in stent recoil crimping. The assembly is used in a method for delivering and deploying a stent, and also adds safety when loading/crimping the stent onto a balloon.Type: GrantFiled: December 12, 2000Date of Patent: January 14, 2003Assignee: Scimed Life Systems, Inc.Inventors: Fernando Di Caprio, Stanley A. Nordin, Louis G. Ellis, Andrew J. Dusbabek
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Publication number: 20020165574Abstract: An evacuation sheath assembly and method of treating occluded vessels which reduces the risk of distal embolization during vascular interventions is provided. The evacuation sheath assembly includes an elongated tube defining an evacuation lumen having proximal and distal ends. A proximal sealing surface is provided on a proximal portion of the tube and is configured to form a seal with a lumen of a guided catheter. A distal sealing surface is provided on a distal portion of the tube and is configured to form a seal with a blood vessel. Obturator assemblies and infusion catheter assemblies are provided to be used with the evacuation sheath assembly. A method of treatment of a blood vessel using the evacuation sheath assembly includes advancing the evacuation sheath assembly into the blood vessel through a guide catheter. Normal antegrade blood flow in the blood vessel proximate to the stenosis is stopped and the stenosis is treated.Type: ApplicationFiled: August 29, 2001Publication date: November 7, 2002Applicant: Velocimed.Inventors: Thomas V. Ressemann, Steven S. Hackett, Andrew J. Dusbabek, Scott A. Olson, Peter T. Keith, Dennis W. Wahr
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Publication number: 20020156519Abstract: An assembly for delivery and deployment of an inflation expandable stent within a vessel is comprised of a catheter, an inflation expandable stent, an expandable balloon, and a securement means such as a corrugated tube component or an expandable tube component. The tube component is mounted on the inner shaft beneath the balloon and provides increased securement to the stent in a reduced delivery diameter to maintain the stent on the catheter during delivery to the deployment site. The tube component is adhered to the inner shaft and has a plurality of ribs or is fluid expandable to no more than the delivery diameter. and may be comprised of more than one separately inflatable pouch expandable to provide the stent with a substrate seat with increased friction and to decrease the slack in stent recoil crimping. The assembly is used in a method for delivering and deploying a stent, and also adds safety when loading/crimping the stent onto a balloon.Type: ApplicationFiled: June 17, 2002Publication date: October 24, 2002Inventors: Fernando Di Caprio, Stanley A. Nordin, Louis G. Ellis, Andrew J. Dusbabek
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Publication number: 20020123794Abstract: A stent delivery system to facilitate introduction and placement of a stent, including a catheter having an expandable distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state: a stent positioned around the distal portion of the catheter having a contracted condition and being expandable to an expanded condition, and being sized in the contracted condition to closely surround the catheter in the contracted state, the expandable distal portion of the catheter including a balloon within which there is included on the catheter shaft at least one body of a diameter larger than the catheter shaft to which the stent and balloon are fitted, as by crimping, for holding the stent in place until it is released therefrom by expansion of the balloon.Type: ApplicationFiled: April 16, 2002Publication date: September 5, 2002Inventors: Louis G. Ellis, Andrew J. Dusbabek, Christopher R. Larson, Terry V. Brown
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Patent number: 6419685Abstract: An assembly for delivery and deployment of an inflation expandable stent within a vessel is comprised of a catheter, an inflation expandable stent, an expandable balloon, and a securement means such as a corrugated tube component or an expandable tube component. The tube component is mounted on the inner shaft beneath the balloon and provides increased securement to the stent in a reduced delivery diameter to maintain the stent on the catheter during delivery to the deployment site. The tube component is adhered to the inner shaft and has a plurality of ribs or is fluid expandable to no more than the delivery diameter. and may be comprised of more than one separately inflatable pouch expandable to provide the stent with a substrate seat with increased friction and to decrease the slack in stent recoil crimping. The assembly is used in a method for delivering and deploying a stent, and also adds safety when loading/crimping the stent onto a balloon.Type: GrantFiled: November 30, 2000Date of Patent: July 16, 2002Assignee: Scimed Life Systems, Inc.Inventors: Fernando Di Caprio, Stanley A. Nordin, Louis G. Ellis, Andrew J. Dusbabek
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Patent number: 6395008Abstract: An assembly and a method to deliver and deploy and inflation expandable stent is described. The assembly has a catheter with an annular collar is coaxially located on the catheter distal end. An expandable balloon, in a contracted state, is coaxially mounted over the collar at the catheter distal end. A stent, in a reduced configuration, is coaxially mounted on the balloon and conformed to the catheter and collar. At least one cup is coaxially mounted on the catheter distal end. The cup and collar are cooperate to retain the end portion of the reduced stent on the catheter. The balloon is inflated to expand the stent and release the stent from the cup or cups. The cup can be axially spaced from the collar. The cup can be fixed to the catheter or can be freely sliding on the catheter. The cup can overlie at least a portion of the collar. The collar can be shaped as a single member with the catheter.Type: GrantFiled: August 23, 1996Date of Patent: May 28, 2002Assignee: SciMed Life Systems, Inc.Inventors: Louis G. Ellis, Andrew J. Dusbabek
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Patent number: 6387117Abstract: An apparatus for reducing a medical device such as a stent in size is formed of cooperating crimping dies which are joined via a crimping die moving device. As the cooperating dies are moved together, an inward force is applied to the medical device to reduce the medical device in size.Type: GrantFiled: September 22, 1999Date of Patent: May 14, 2002Assignee: SciMed Life Systems, Inc.Inventors: John E. Arnold, Jr., Terry V. Brown, Andrew J. Dusbabek, Christopher J. Elliott, Louis G. Ellis, Christopher R. Larson, Gary J. Leanna
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Publication number: 20020049466Abstract: An angioplasty and stent delivery system to facilitate introduction and placement of a stent, including a catheter having an expandable distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state: a stent positioned around the distal portion of the catheter having a contracted condition and being expandable to an expanded condition, and being sized in the contracted condition to closely surround the catheter in the contracted state, the expandable distal portion of the catheter including a balloon within which or over which there is included on a catheter shaft at least one axially movable or enlargeable body of a diameter larger than the catheter shaft to which the stent and balloon are fitted, as by crimping, for holding the stent in place until it is released therefrom by expansion of the balloon.Type: ApplicationFiled: December 4, 2001Publication date: April 25, 2002Inventors: Charles I. Euteneuer, Christopher R. Larson, Steven P. Mertens, Richard C. Mattison, David J. Blaeser, Louis G. Ellis, Andrew J. Dusbabek, Terry V. Brown
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Patent number: 6371962Abstract: A stent delivery system to facilitate introduction and placement of a stent, including a catheter having an expandable distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state: a stent positioned around the distal portion of the catheter having a contracted condition and being expandable to an expanded condition, and being sized in the contracted condition to closely surround the catheter in the contracted state, the expandable distal portion of the catheter including a balloon within which there is included on the catheter shaft at least one body of a diameter larger than the catheter shaft to which the stent and balloon are fitted, as by crimping, for holding the stent in place until it is released therefrom by expansion of the balloon.Type: GrantFiled: October 19, 1999Date of Patent: April 16, 2002Assignee: Scimed Life Systems, Inc.Inventors: Louis G. Ellis, Andrew J. Dusbabek, Christopher R. Larson, Terry V. Brown
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Publication number: 20020042626Abstract: Methods and devices for providing temporary placement of a filter in a blood vessel are disclosed. A filter delivery system in accordance with one exemplary embodiment of the present invention includes a catheter having an elongate shaft and a tubular member disposed within a shaft lumen defined by the elongate shaft. The elongate shaft also includes a proximal end, a distal end, and a wall defining the shaft lumen. The tubular member has a first end fixed to the wall of the elongate shaft, and a second end disposed within the shaft lumen. The tubular member defines a guidewire lumen that is in fluid communication with a distal guidewire port defined by the second end of the tubular member. The catheter also includes a proximal guidewire port extending through the wall of the elongate shaft. A filter may be disposed within a distal portion of the shaft lumen. A distal end of a guidewire is fixed to the filter.Type: ApplicationFiled: March 7, 2001Publication date: April 11, 2002Inventors: Scott M. Hanson, Andrew J. Dusbabek, Gary L. Hendrickson
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Patent number: 6325814Abstract: An angioplasty and stent delivery system to facilitate introduction and placement of a stent, including a catheter having an expandable distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state: a stent positioned around the distal portion of the catheter having a contracted condition and being expandable to an expanded condition, and being sized in the contracted condition to closely surround the catheter in the contracted state, the expandable distal portion of the catheter including a balloon within which or over which there is included on a catheter shaft at least one axially movable or enlargeable body of a diameter larger than the catheter shaft to which the stent and balloon are fitted, as by crimping, for holding the stent in place until it is released therefrom by expansion of the balloon.Type: GrantFiled: October 19, 1999Date of Patent: December 4, 2001Assignee: SciMed Life Systems, Inc.Inventors: Charles L. Euteneuer, Christopher R. Larson, Steven P. Mertens, Richard C. Mattison, David J. Blaeser, Louis G. Ellis, Andrew J. Dusbabek, Terry V. Brown
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Publication number: 20010016753Abstract: An assembly for delivery and deployment of an inflation expandable stent within a vessel is comprised of a catheter, an inflation expandable stent, an expandable balloon, and a securement means such as a corrugated tube component or an expandable tube component. The tube component is mounted on the inner shaft beneath the balloon and provides increased securement to the stent in a reduced delivery diameter to maintain the stent on the catheter during delivery to the deployment site. The tube component is adhered to the inner shaft and has a plurality of ribs or is fluid expandable to no more than the delivery diameter. and may be comprised of more than one separately inflatable pouch expandable to provide the stent with a substrate seat with increased friction and to decrease the slack in stent recoil crimping. The assembly is used in a method for delivering and deploying a stent, and also adds safety when loading/crimping the stent onto a balloon.Type: ApplicationFiled: December 12, 2000Publication date: August 23, 2001Inventors: Fernando Di Caprio, Stanley A. Nordin, Louis G. Ellis, Andrew J. Dusbabek
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Publication number: 20010007081Abstract: An assembly for delivery and deployment of an inflation expandable stent within a vessel is comprised of a catheter, an inflation expandable stent, an expandable balloon, and a securement means such as a corrugated tube component or an expandable tube component. The tube component is mounted on the inner shaft beneath the balloon and provides increased securement to the stent in a reduced delivery diameter to maintain the stent on the catheter during delivery to the deployment site. The tube component is adhered to the inner shaft and has a plurality of ribs or is fluid expandable to no more than the delivery diameter and may be comprised of more than one separately inflatable pouch expandable to provide the stent with a substrate seat with increased friction and to decrease the slack in stent recoil crimping. The assembly is used in a method for delivering and deploying a stent, and also adds safety when loading/crimping the stent onto a balloon.Type: ApplicationFiled: November 30, 2000Publication date: July 5, 2001Inventors: Fernando Di Caprio, Stanley A. Nordin, Louis G. Ellis, Andrew J. Dusbabek
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Publication number: 20010007082Abstract: A system/assembly for delivery and deployment of an inflation expandable stent within a vessel, comprising a catheter having proximal and distal ends; a stent, inflation expandable from a delivery diameter to a deployment diameter, such that the delivery diameter is reduced from the deployment diameter for conforming the stent to the catheter, such that the stent, in its delivery diameter, is coaxially mounted on the catheter near the catheter distal end; an expandable inflation means coaxially mounted on the catheter axially within the stent, for expansion of the stent from the delivery diameter to the deployment diameter upon application of fluid deployment pressure to the inflation means; and a securement component coaxially mounted on the catheter, axially within the expandable inflation means, the securement component designed and adapted to provide a securement pressure to the stent in the delivery diameter to maintain the stent in position on the catheter during delivery to the deployment site.Type: ApplicationFiled: February 27, 2001Publication date: July 5, 2001Inventors: Andrew J. Dusbabek, Louis G. Ellis, Christopher R. Larson, Terry V. Brown, Charles L. Euteneuer, Steven P. Mertens, Richard C. Mattison, David J. Blaeser, Linda R. Lorentzen, Martin R. Willard, Fernando Di Caprio, Stanley A. Nordin
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Patent number: 6203558Abstract: A system/assembly for delivery and deployment of an inflation expandable stent within a vessel, comprising a catheter having proximal and distal ends; a stent, inflation expandable from a delivery diameter to a deployment diameter, such that the delivery diameter is reduced from the deployment diameter for conforming the stent to the catheter, such that the stent, in its delivery diameter, is coaxially mounted on the catheter near the catheter distal end; an expandable inflation member coaxially mounted on the catheter axially within the stent, for expansion of the stent from the delivery diameter to the deployment diameter upon application of fluid deployment pressure to the inflation member; and a securement component coaxially mounted on the catheter, axially within the expandable inflation members, the securement component designed and adapted to provide a securement pressure to the stent in the delivery diameter to maintain the stent in position on the catheter during delivery to the deployment site.Type: GrantFiled: October 14, 1999Date of Patent: March 20, 2001Assignee: SciMed Life Systems, Inc.Inventors: Andrew J. Dusbabek, Louis G. Ellis, Christopher R. Larson, Terry V. Brown, Charles L. Euteneuer, Steven P. Mertens, Richard C. Mattison, David J. Blaeser, Linda R. Lorentzen Cornelius, Martin R. Willard, Fernando Di Caprio, Stanley A. Nordin
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Patent number: 6159227Abstract: An assembly for delivery and deployment of an inflation expandable stent within a vessel is comprised of a catheter, an inflation expandable stent, an expandable balloon, and a securement means such as a corrugated tube component or an expandable tube component. The tube component is mounted on the inner shaft beneath the balloon and provides increased securement to the stent in a reduced delivery diameter to maintain the stent on the catheter during delivery to the deployment site. The tube component is adhered to the inner shaft and has a plurality of ribs or is fluid expandable to no more than the delivery diameter. and may be comprised of more than one separately inflatable pouch expandable to provide the stent with a substrate seat with increased friction and to decrease the slack in stent recoil crimping. The assembly is used in a method for delivering and deploying a stent, and also adds safety when loading/crimping the stent onto a balloon.Type: GrantFiled: August 31, 1999Date of Patent: December 12, 2000Assignee: SciMed Life Systems, Inc.Inventors: Fernando Di Caprio, Stanley A. Nordin, Louis G. Ellis, Andrew J. Dusbabek
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Patent number: 6123712Abstract: An assembly for delivery and deployment of an inflation expandable stent within a vessel is comprised of a catheter, and inflation expandable stent, an expandable balloon, and a securement means such as a corrugated tube component or an expandable tube component. The tube component is mounted on the inner shaft beneath the balloon and provides increased securement to the stent in a reduced delivery diameter to maintain the stent on the catheter during delivery to the deployment site. The tube component is adhered to the inner shaft and has a plurality of ribs or is fluid expandable to no more than the delivery diameter, and may be comprised of more than one separately inflatable pouch expandable to provide the stent with a substrate seat with increased friction and to decrease the slack in stent recoil crimping. The assembly is used in a method for delivering and deploying a stent, and also adds safety when loading/crimping the stent onto a balloon.Type: GrantFiled: August 22, 1997Date of Patent: September 26, 2000Assignee: SciMed Life Systems, Inc.Inventors: Fernando Di Caprio, Stanley A. Nordin, Louis G. Ellis, Andrew J. Dusbabek
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Patent number: 6077273Abstract: An angioplasty and stent delivery system to facilitate introduction and placement of a stent, including a catheter having an expandable distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state: a stent positioned around the distal portion of the catheter having a contracted condition and being expandable to an expanded condition, and being sized in the contracted condition to closely surround the catheter in the contracted state, the expandable distal portion of the catheter including a balloon within which or over which there is included on a catheter shaft at least one axially movable or enlargeable body of a diameter larger than the catheter shaft to which the stent and balloon are fitted, as by crimping, for holding the stent in place until it is released therefrom by expansion of the balloon.Type: GrantFiled: February 28, 1997Date of Patent: June 20, 2000Assignee: SciMed Life Systems, Inc.Inventors: Charles L. Euteneuer, Christopher R. Larson, Steven P. Mertens, Richard C. Mattison, David J. Blaeser, Louis G. Ellis, Andrew J. Dusbabek, Terry V. Brown
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Patent number: 6007543Abstract: A stent delivery system to facilitate introduction and placement of a stent, including a catheter having an expandable distal portion constructed and arranged for expanding the outer diameter of the catheter from a contracted state to an expanded state: a stent positioned around the distal portion of the catheter having a contracted condition and being expandable to an expanded condition, and being sized in the contracted condition to closely surround the catheter in the contracted state, the expandable distal portion of the catheter including a balloon within which there is included on the catheter shaft at least one body of a diameter larger than the catheter shaft to which the stent and balloon are fitted, as by crimping, for holding the stent in place until it is released therefrom by expansion of the balloon.Type: GrantFiled: August 23, 1996Date of Patent: December 28, 1999Assignee: SciMed Life Systems, Inc.Inventors: Louis G. Ellis, Andrew J. Dusbabek, Christopher R. Larson, Terry V. Brown