Patents by Inventor Louis Ellis
Louis Ellis 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: 8808272Abstract: A modified medical device for delivery of a pharmaceutically active material is described. The present inventors have found that many conventional medical devices contain a metallic or polymeric component that comes into contact with a pharmaceutically active material during use, and that the contact substantially reduce the pharmaceutical effectiveness of the pharmaceutically active material. The invention described herein concerns various modifications to the metallic or polymeric component that are effective to diminish such a substantial reduction in pharmaceutical effectiveness.Type: GrantFiled: June 12, 2006Date of Patent: August 19, 2014Assignee: Boston Scientific Scimed, Inc.Inventors: James Barry, Maria Palasis, Louis Ellis, Timothy Mickley, Brian Berg
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Patent number: 8034074Abstract: A filter retrieval device having an actuatable dilator tip for retrieval of an intravascular filter from a body lumen is disclosed. An outer shaft coupled to a distal sheath is advanced along a filter wire to desired point within the vasculature. An intravascular filter such as a distal protection filter can be advanced along the filter wire to a point distal a lesion to collect debris dislodged during a medical procedure. Disposable in part within the distal sheath is an actuatable dilator tip adapted to retrieve the filter at least in part within the distal sheath. Actuation of the dilator tip may be accomplished by any number of means, including a resilient member such as a spring coil, or by a reduced inner diameter portion disposed on the distal sheath adapted to engage a plurality of recessed surfaces disposed on the dilator tip.Type: GrantFiled: December 27, 2006Date of Patent: October 11, 2011Assignee: Boston Scientific Scimed, Inc.Inventors: Joseph Garner, Matthew L. Young, Andrew Forsberg, Louis Ellis, Gary Hendrickson
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Patent number: 7854743Abstract: A catheter for placement of an in situ implant is provided. This catheter may include a first elongate shaft having a proximal end and a distal end, a second elongate shaft having a proximal end and a distal end, a first sharpened distal tip disposed at the distal end of the first shaft and a second sharpened distal tip disposed at the distal end of the second shaft. The first shaft and the second shaft may also be secured to one another at the distal end of the first shaft according to the invention. Still further, according to other teachings, the first sharpened distal tip may extend beyond the second sharpened distal tip in a catheter that practices the invention.Type: GrantFiled: July 21, 2005Date of Patent: December 21, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: Maria Palasis, James J. Barry, Louis Ellis, Gary L. Hendrickson, Kent D. Harrison, Lixiao Wang
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Patent number: 7832406Abstract: Devices and methods for creating a series of percutaneous myocardial revascularization (PMR) channels in the heart. One method includes forming a pattern of channels in the myocardium leading from healthy tissue to hibernating tissue. Suitable channel patterns include lines and arrays. One method includes anchoring a radiopaque marker to a position in the ventricle wall, then using fluoroscopy repeatedly to guide positioning of a cutting tip in the formation of multiple channels. Another method uses radiopaque material injected into each channel formed, as a marker. Yet another method utilizes an anchorable, rotatable cutting probe for channel formation about an anchor member, where the cutting probe can vary in radial distance from the anchor. Still another method utilizes a multiple wire radio frequency burning probe, for formation of multiple channels simultaneously. Still another method utilizes liquid nitrogen to cause localized tissue death.Type: GrantFiled: July 28, 2005Date of Patent: November 16, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: Louis Ellis, Daniel M. Lafontaine, Roger N. Hastings, Lauri DeVore
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Patent number: 7695455Abstract: A catheter system includes a catheter having a proximal end, a distal end, and a lumen extending therein. An administering portion is disposed at the distal end of the catheter and is configured to administer a bolus of liquid in response to positive pressure in a distal portion of the lumen. The catheter system of the present invention has a dead space of less 0.32 cc and preferably less than 0.15 cc in which residual therapeutic agents remain after delivery. The present invention also includes a method of administering a liquid to a treatment site. The distal end of the catheter is transluminally positioned proximate the treatment site. The catheter is charged by placing a bolus of the liquid in the lumen. A positive pressure is created to drive the bolus to the administering tip to express the bolus from the distal end of the catheter.Type: GrantFiled: July 2, 2004Date of Patent: April 13, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: Timothy J. Mickley, Thomas R. Hektner, Louis Ellis, Gary L. Hendrickson
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Publication number: 20080314394Abstract: Devices and methods for creating a series of percutaneous myocardial revascularization (PMR) channels in the heart. One method includes forming a pattern of channels in the myocardium leading from healthy tissue to hibernating tissue. Suitable channel patterns include lines and arrays. One method includes anchoring a radiopaque marker to a position in the ventricle wall, then using fluoroscopy repeatedly to guide positioning of a cutting tip in the formation of multiple channels. Another method uses radiopaque material injected into each channel formed, as a marker. Yet another method utilizes an anchorable, rotatable cutting probe for channel formation about an anchor member, where the cutting probe can vary in radial distance from the anchor. Still another method utilizes a multiple wire radio frequency burning probe, for formation of multiple channels simultaneously. Still another method utilizes liquid nitrogen to cause localized tissue death.Type: ApplicationFiled: July 28, 2005Publication date: December 25, 2008Inventors: Louis Ellis, Daniel Lafontaine, Roger Hastings, Lauri DeVore
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Publication number: 20070197980Abstract: A modified medical device for delivery of a pharmaceutically active material is described. The present inventors have found that many conventional medical devices contain a metallic or polymeric component that comes into contact with a pharmaceutically active material during use, and that the contact substantially reduce the pharmaceutical effectiveness of the pharmaceutically active material. The invention described herein concerns various modifications to the metallic or polymeric component that are effective to diminish such a substantial reduction in pharmaceutical effectiveness.Type: ApplicationFiled: June 12, 2006Publication date: August 23, 2007Inventors: James Barry, Maria Palasis, Louis Ellis, Timothy Mickley, Brian Berg
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Patent number: 7226464Abstract: A filter retrieval device having an actuatable dilator tip for retrieval of an intravascular filter from a body lumen is disclosed. An outer shaft coupled to a distal sheath is advanced along a filter wire to desired point within the vasculature. An intravascular filter such as a distal protection filter can be advanced along the filter wire to a point distal a lesion to collect debris dislodged during a medical procedure. Disposable in part within the distal sheath is an actuatable dilator tip adapted to retrieve the filter at least in part within the distal sheath. Actuation of the dilator tip may be accomplished by any number of means, including a resilient member such as a spring coil, or by a reduced inner diameter portion disposed on the distal sheath adapted to engage a plurality of recessed surfaces disposed on the dilator tip.Type: GrantFiled: February 27, 2002Date of Patent: June 5, 2007Assignee: Scimed Life Systems, Inc.Inventors: Joseph Garner, Matthew L. Young, Andrew Forsberg, Louis Ellis, Gary Hendrickson
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Publication number: 20070106324Abstract: A filter retrieval device having an actuatable dilator tip for retrieval of an intravascular filter from a body lumen is disclosed. An outer shaft coupled to a distal sheath is advanced along a filter wire to desired point within the vasculature. An intravascular filter such as a distal protection filter can be advanced along the filter wire to a point distal a lesion to collect debris dislodged during a medical procedure. Disposable in part within the distal sheath is an actuatable dilator tip adapted to retrieve the filter at least in part within the distal sheath. Actuation of the dilator tip may be accomplished by any number of means, including a resilient member such as a spring coil, or by a reduced inner diameter portion disposed on the distal sheath adapted to engage a plurality of recessed surfaces disposed on the dilator tip.Type: ApplicationFiled: December 27, 2006Publication date: May 10, 2007Applicant: SCIMED LIFE SYSTEMS, INC.Inventors: Joseph Garner, Matthew Young, Andrew Forsberg, Louis Ellis, Gary Hendrickson
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Patent number: 7060056Abstract: Many conventional pharmaceutical articles contain seemingly inert components that come into contact with a pharmaceutically active material during use, which contact substantially reduces the pharmaceutical effectiveness of the pharmaceutically active material. The invention described herein concerns various modifications to these incompatible components, which are effective to diminish the reduction in pharmaceutical effectiveness.Type: GrantFiled: August 2, 2004Date of Patent: June 13, 2006Assignee: Boston Scientific Scimed, Inc.Inventors: Maria Palasis, Wendy Naimark, Timothy Mickley, Louis Ellis
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Publication number: 20050257796Abstract: Devices and methods for creating a series of percutaneous myocardial revascularization (PMR) channels in the heart. One method includes forming a pattern of channels in the myocardium leading from healthy tissue to hibernating tissue. Suitable channel patterns include lines and arrays. One method includes anchoring a radiopaque marker to a position in the ventricle wall, then using fluoroscopy repeatedly to guide positioning of a cutting tip in the formation of multiple channels. Another method uses radiopaque material injected into each channel formed, as a marker. Yet another method utilizes an anchorable, rotatable cutting probe for channel formation about an anchor member, where the cutting probe can vary in radial distance from the anchor. Still another method utilizes a multiple wire radio frequency burning probe, for formation of multiple channels simultaneously. Still another method utilizes liquid nitrogen to cause localized tissue death.Type: ApplicationFiled: July 28, 2005Publication date: November 24, 2005Inventors: Louis Ellis, Daniel Lafontaine, Roger Hastings, Lauri DeVore
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Publication number: 20050256450Abstract: A catheter for placement of an in situ implant is provided. This catheter may include a first elongate shaft having a proximal end and a distal end, a second elongate shaft having a proximal end and a distal end, a first sharpened distal tip disposed at the distal end of the first shaft and a second sharpened distal tip disposed at the distal end of the second shaft. The first shaft and the second shaft may also be secured to one another at the distal end of the first shaft according to the invention. Still further, according to other teachings, the first sharpened distal tip may extend beyond the second sharpened distal tip in a catheter that practices the invention.Type: ApplicationFiled: July 21, 2005Publication date: November 17, 2005Inventors: Maria Palasis, James Barry, Louis Ellis, Gary Hendrickson, Kent Harrison, Lixiao Wang
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Publication number: 20050240215Abstract: An embolic protection device including an elongate shaft having a proximal end and a distal end. A magnetically permeable section can be disposed proximate the proximal end of the shaft and an embolic protection filter can be disposed on the elongate shaft. And a captivation tool including a magnetic section can be magnetically couplable to the magnetically permeable section disposed on the shaft.Type: ApplicationFiled: April 21, 2004Publication date: October 27, 2005Inventor: Louis Ellis
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Patent number: 6953466Abstract: A method for delivering a therapeutic implant to a tissue is provided. This method includes providing an elongate catheter having a distal end including a lumen, providing a carrier including a therapeutic agent, placing the carrier including the therapeutic agent into the lumen, advancing the distal end of the catheter to the tissue, and depositing the carrier including the therapeutic agent into the tissue.Type: GrantFiled: May 4, 2004Date of Patent: October 11, 2005Assignee: Boston Scientific SciMed, Inc.Inventors: Maria Palasis, James J. Barry, Louis Ellis, Gary L. Hendrickson, Kent D. Harrison, Lixiao Wang
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Patent number: 6951557Abstract: Devices and methods for creating a series of percutaneous myocardial revascularization (PMR) channels in the heart. One method includes forming a pattern of channels in the myocardium leading from healthy tissue to hibernating tissue. Suitable channel patterns include lines and arrays. One method includes anchoring a radiopaque marker to a position in the ventricle wall, then using fluoroscopy repeatedly to guide positioning of a cutting tip in the formation of multiple channels. Another method uses radiopaque material injected into each channel formed, as a marker. Yet another method utilizes an anchorable, rotatable cutting probe for channel formation about an anchor member, where the cutting probe can vary in radial distance from the anchor. Still another method utilizes a multiple wire radio frequency burning probe, for formation of multiple channels simultaneously. Still another method utilizes liquid nitrogen to cause localized tissue death.Type: GrantFiled: August 30, 2002Date of Patent: October 4, 2005Assignee: Boston Scientific SciMed, Inc.Inventors: Louis Ellis, Daniel M. Lafontaine, Roger N. Hastings, Lauri DeVore
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Publication number: 20050113767Abstract: Many conventional pharmaceutical articles contain seemingly inert components that come into contact with a pharmaceutically active material during use, which contact substantially reduces the pharmaceutical effectiveness of the pharmaceutically active material. The invention described herein concerns various modifications to these incompatible components, which are effective to diminish the reduction in pharmaceutical effectiveness.Type: ApplicationFiled: August 2, 2004Publication date: May 26, 2005Inventors: Maria Palasis, Wendy Naimark, Timothy Mickley, Louis Ellis
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Publication number: 20040243098Abstract: A catheter system includes a catheter having a proximal end, a distal end, and a lumen extending therein. An administering portion is disposed at the distal end of the catheter and is configured to administer a bolus of liquid in response to positive pressure in a distal portion of the lumen. The catheter system of the present invention has a dead space of less 0.32 cc and preferably less than 0.15 cc in which residual therapeutic agents remain after delivery. The present invention also includes a method of administering a liquid to a treatment site. The distal end of the catheter is transluminally positioned proximate the treatment site. The catheter is charged by placing a bolus of the liquid in the lumen A positive pressure is created to drive the bolus to the administering tip to express the bolus from the distal end of the catheter.Type: ApplicationFiled: July 2, 2004Publication date: December 2, 2004Inventors: Timothy J. Mickley, Thomas R. Hektner, Louis Ellis, Gary L. Hendrickson
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Publication number: 20040204672Abstract: A method for delivering a therapeutic implant to a tissue is provided. This method includes providing an elongate catheter having a distal end including a lumen, providing a carrier including a therapeutic agent, placing the carrier including the therapeutic agent into the lumen, advancing the distal end of the catheter to the tissue, and depositing the carrier including the therapeutic agent into the tissue.Type: ApplicationFiled: May 4, 2004Publication date: October 14, 2004Inventors: Maria Palasis, James J. Barry, Louis Ellis, Gary L. Hendrickson, Kent D. Harrison, Lixiao Wang
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Patent number: 6764461Abstract: A catheter system includes a catheter having a proximal end, a distal end, and a lumen extending therein. An administering portion is disposed at the distal end of the catheter and is configured to administer a bolus of liquid in response to positive pressure in a distal portion of the lumen. The catheter system of the present invention has a dead space of less 0.32 cc and preferably less than 0.15 cc in which residual therapeutic agents remain after delivery. The present invention also includes a method of administering a liquid to a treatment site. The distal end of the catheter is transluminally positioned proximate the treatment site. The catheter is charged by placing a bolus of the liquid in the lumen A positive pressure is created to drive the bolus to the administering tip to express the bolus from the distal end of the catheter.Type: GrantFiled: August 21, 1998Date of Patent: July 20, 2004Assignee: SciMed Life Systems, Inc.Inventors: Timothy J. Mickley, Thomas R. Hektner, Louis Ellis, Gary L. Hendrickson
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Patent number: 6663606Abstract: A modified medical device for delivery of a pharmaceutically active material is described. The present inventors have found that many conventional medical devices contain a metallic or polymeric component that comes into contact with a pharmaceutically active material during use, and that the contact substantially reduce the pharmaceutical effectiveness of the pharmaceutically active material. The invention described herein concerns various modifications to the metallic or polymeric component that are effective to diminish such a substantial reduction in pharmaceutical effectiveness.Type: GrantFiled: February 14, 2000Date of Patent: December 16, 2003Assignee: SciMed Life Systems, Inc.Inventors: James Barry, Maria Palasis, Louis Ellis, Timothy Mickley, Brian Berg, Justin Crank