Patents by Inventor Paul Purcell
Paul Purcell 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).
-
Patent number: 10543090Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. A helical ventricular anchor subassembly is advanceable through the catheter, having a ventricular suture extending proximally through the catheter. A leaflet anchor subassembly is advanceable through the catheter, having a leaflet suture extending proximally through the catheter. From an atrium side, the leaflet anchor subassembly can be anchored to a superior surface of a mitral valve leaflet and a leaflet anchor can be advanced into the mitral valve leaflet to secure the mitral valve leaflet to the leaflet suture. The ventricular anchor subassembly secures the ventricular anchor to a ventricular wall. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.Type: GrantFiled: July 11, 2019Date of Patent: January 28, 2020Assignee: Pipeline Medical Technologies, Inc.Inventors: Erik Griswold, Gordon B. Bishop, Stephen McDaniel, Trung Ho Pham, Cameron Paul Purcell
-
Publication number: 20190328502Abstract: Disclosed are methods and devices for isolating all three of the left subclavian, left common carotid and brachiocephalic arteries from embolic debris that might flow through the aortic arch, via a single access point. A system may include an elongate flexible tubular sheath, having a proximal end and a distal end, and an inner member extending through the sheath and moveable relative to the sheath. A left subclavian element may be supported by the inner member. A filter membrane may be configured to isolate the aorta from the brachiocephalic, left common carotid and left subclavian arteries when the left subclavian element is expanded within the left subclavian artery and the sheath is retracted to expose the membrane. The left subclavian element may include a self expandable frame, which may carry a left subclavian filter.Type: ApplicationFiled: April 26, 2019Publication date: October 31, 2019Applicant: Claret Medical, Inc.Inventors: Whittaker Ian Hamill, Shih Hsiung Albert Yuan, Antony J. Fields, Cameron Paul Purcell, Daniel Wayne Fifer, James Richard Watson
-
Publication number: 20190328527Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, a leaflet connector carried by a distal end of the catheter can be anchored to a superior surface of a mitral valve leaflet. A needle is axially advanceable through the leaflet connector and through the leaflet. A leaflet anchor having a leaflet suture can be advanced out of the needle to secure the mitral valve leaflet to the leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.Type: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Trung Ho Pham, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Cameron Paul Purcell
-
Publication number: 20190328529Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. A helical ventricular anchor subassembly is advanceable through the catheter, having a ventricular suture extending proximally through the catheter. A leaflet anchor subassembly is advanceable through the catheter, having a leaflet suture extending proximally through the catheter. From an atrium side, the leaflet anchor subassembly can be anchored to a superior surface of a mitral valve leaflet and a leaflet anchor can be advanced into the mitral valve leaflet to secure the mitral valve leaflet to the leaflet suture. The ventricular anchor subassembly secures the ventricular anchor to a ventricular wall. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.Type: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Erik Griswold, Gordon B. Bishop, Stephen McDaniel, Trung Ho Pham, Cameron Paul Purcell
-
Publication number: 20190328526Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, the catheter can be anchored to a superior surface of a mitral valve leaflet and a leaflet anchor can be advanced into the mitral valve leaflet to secure the mitral valve leaflet to a leaflet suture. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae.Type: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Cameron Paul Purcell, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Trung Ho Pham
-
Publication number: 20190328528Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium to attach a leaflet anchor having a leaflet suture to a mitral valve leaflet. A ventricular anchor has a hub with a helical anchor and a core wire extending through the helical anchor. A radiopaque marker may be axially movably carried on the core wire, and a spring biases the marker in a distal direction. The marker is advanced proximally on the tissue surface relative to the helical anchor as the helical anchor is advanced distally into tissue to secure a ventricular suture to the ventricular wall. A leaflet suture and the ventricular suture may be tensioned and connected by a suture lock to form an artificial chordae.Type: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Cameron Paul Purcell, Gordon B. Bishop, Erik Griswold, Stephen McDaniel, Trung Ho Pham
-
Publication number: 20190328530Abstract: Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium. From an atrium side, a leaflet anchor having a leaflet suture is secured to the mitral valve leaflet. A ventricular anchor is anchored to the wall of the ventricle to secure the ventricular wall to a ventricle suture. The leaflet suture and the ventricle suture may be tensioned and connected by a suture lock to form an artificial chordae. The suture lock has a body with a suture path extending therethrough. A wall in the housing is movable to reduce the cross section of the suture path. A drive mechanism advances the movable wall to clamp sutures extending through the suture path, in response to rotation of a coupling on the housing.Type: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Stephen McDaniel, Gordon B. Bishop, Erik Griswold, Trung Ho Pham, Cameron Paul Purcell
-
Patent number: 10449028Abstract: Vascular filters and deflectors and methods for filtering bodily fluids. A blood filtering assembly can capture embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. A blood deflecting assembly can deflect embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature.Type: GrantFiled: January 5, 2017Date of Patent: October 22, 2019Assignee: CLARET MEDICAL, INC.Inventors: Cameron Paul Purcell, Daniel Wayne Fifer
-
Publication number: 20190183628Abstract: Vascular filters and deflectors and methods for filtering bodily fluids. A blood filtering assembly can capture embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. A blood deflecting assembly can deflect embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature.Type: ApplicationFiled: December 19, 2018Publication date: June 20, 2019Applicant: Claret Medical, Inc.Inventors: Cameron Paul Purcell, Antony J. Fields, Whittaker Ian Hamill, Daniel Wayne Fifer, Philip Jon Haarstad, David John Blaeser
-
Publication number: 20190125513Abstract: Vascular filters and deflectors and methods for filtering bodily fluids. A blood filtering assembly can capture embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. A blood deflecting assembly can deflect embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature.Type: ApplicationFiled: October 29, 2018Publication date: May 2, 2019Applicant: Claret Medical, Inc.Inventors: Cameron Paul Purcell, Antony J. Fields, Whittaker Ian Hamill, Daniel Wayne Fifer
-
Publication number: 20180235742Abstract: Vascular filters and deflectors and methods for filtering bodily fluids. A blood filtering assembly can capture embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. A blood deflecting assembly can deflect embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature.Type: ApplicationFiled: February 21, 2018Publication date: August 23, 2018Inventors: Antony J. Fields, Cameron Paul Purcell, Daniel Wayne Fifer
-
Publication number: 20170112609Abstract: Vascular filters and deflectors and methods for filtering bodily fluids. A blood filtering assembly can capture embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. A blood deflecting assembly can deflect embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature.Type: ApplicationFiled: January 5, 2017Publication date: April 27, 2017Inventors: Cameron Paul Purcell, Daniel Wayne Fifer
-
Patent number: 9566144Abstract: Vascular filters and deflectors and methods for filtering bodily fluids. A blood filtering assembly can capture embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. A blood deflecting assembly can deflect embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature.Type: GrantFiled: April 22, 2015Date of Patent: February 14, 2017Assignee: Claret Medical, Inc.Inventors: Cameron Paul Purcell, Daniel Wayne Fifer
-
Publication number: 20160310255Abstract: Vascular filters and deflectors and methods for filtering bodily fluids. A blood filtering assembly can capture embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature. A blood deflecting assembly can deflect embolic material dislodged or generated during an endovascular procedure to inhibit or prevent the material from entering the cerebral vasculature.Type: ApplicationFiled: April 22, 2015Publication date: October 27, 2016Inventors: Cameron Paul Purcell, Daniel Wayne Fifer
-
Patent number: 8865694Abstract: The invention provides a topical formulation adapted for treatment of a skin condition comprising (i) at least one retinoid; and (ii) salicylic acid or an ester, amide, salt, or solvate thereof. The invention also includes a kit for treatment of skin conditions comprising a retinoid and salicylic acid, as well as a method of treating skin conditions utilizing the inventive formulation and kit.Type: GrantFiled: May 3, 2013Date of Patent: October 21, 2014Assignee: Molecular Design International, Inc.Inventor: William Paul Purcell
-
Publication number: 20140066414Abstract: The invention provides a topical formulation adapted for treatment of a skin condition comprising (i) at least one retinoid; and (ii) salicylic acid or an ester, amide, salt, or solvate thereof. The invention also includes a kit for treatment of skin conditions comprising a retinoid and salicylic acid, as well as a method of treating skin conditions utilizing the inventive formulation and kit.Type: ApplicationFiled: May 3, 2013Publication date: March 6, 2014Inventor: William Paul Purcell
-
Publication number: 20130237505Abstract: The invention provides a topical formulation adapted for treatment of a skin condition comprising (i) at least one retinoid; and (ii) salicylic acid or an ester, amide, salt, or solvate thereof. The invention also includes a kit for treatment of skin conditions comprising a retinoid and salicylic acid, as well as a method of treating skin conditions utilizing the inventive formulation and kit.Type: ApplicationFiled: May 3, 2013Publication date: September 12, 2013Applicant: CONCERT, LLCInventor: William Paul Purcell
-
Publication number: 20080139518Abstract: The invention provides a topical formulation adapted for treatment of a skin condition comprising (i) at least one retinoid; and (ii) salicylic acid or an ester, amide, salt, or solvate thereof. The invention also includes a kit for treatment of skin conditions comprising a retinoid and salicylic acid, as well as a method of treating skin conditions utilizing the inventive formulation and kit.Type: ApplicationFiled: December 4, 2007Publication date: June 12, 2008Inventor: William Paul Purcell
-
Publication number: 20060259253Abstract: A flow cytometry apparatus and methods to process information incident to particles or cells entrained in a sheath fluid stream allowing assessment, differentiation, assignment, and separation of such particles or cells even at high rates of speed. A first signal processor individually or in combination with at least one additional signal processor for applying compensation transformation on data from a signal. Compensation transformation can involve complex operations on data from at least one signal to compensate for one or numerous operating parameters. Compensated parameters can be returned to the first signal processor for provide information upon which to define and differentiate particles from one another.Type: ApplicationFiled: March 31, 2006Publication date: November 16, 2006Applicant: Dako Colorado, Inc.Inventors: Carl Ellison, Paul Purcell, George Malachowski, Matthias Ottenberg