Patents by Inventor Maureen A. Finlayson
Maureen A. Finlayson 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: 11547836Abstract: A coaxial stabilizing and sealing catheter provides increased support to a guide catheter that is seated in an ostium of a branch artery by extending through and out of a distal end of the guide catheter and anchoring in position within the branch artery that is being treated. The stabilizing and sealing catheter includes, as part of a relatively flexible distal section, a balloon that locks a distal end of the stabilizing and sealing catheter in place to provide support to therapeutic devices that are introduced and further seals the branch artery to prevent blood from entering the branch artery. A sealing cuff at a proximal end of the stabilizing and sealing catheter provides a seal between an exterior of the stabilizing and sealing catheter and an interior of the guide catheter. In addition, a fixing mechanism is utilized to lock the guide catheter in place to exchange therapeutic devices.Type: GrantFiled: June 2, 2020Date of Patent: January 10, 2023Assignee: Radius Medical LLCInventors: David Daniels, Richard M. DeMello, Maureen A. Finlayson, Jonathan R. DeMello
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Publication number: 20200289797Abstract: A coaxial stabilizing and sealing catheter provides increased support to a guide catheter that is seated in an ostium of a branch artery by extending through and out of a distal end of the guide catheter and anchoring in position within the vessel that is being treated. The stabilizing and sealing catheter includes, as part of a relatively flexible distal section, a balloon that locks the distal end of the stabilizing and sealing catheter in place to provide support to the therapeutic devices that are introduced and further seals the artery to prevent blood from entering the artery. A sealing cuff at a proximal end of the stabilizing and sealing catheter provides a seal between the exterior of the stabilizing and sealing catheter and the interior of the guide catheter. In addition, a fixing mechanism it utilized to lock the guide catheter in place to exchange therapeutic devices.Type: ApplicationFiled: June 2, 2020Publication date: September 17, 2020Inventors: David Daniels, Richard M. DeMello, Maureen A. Finlayson, Jonathan R. DeMello
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Patent number: 10668254Abstract: A coaxial stabilizing and sealing catheter provides increased support to a guide catheter that is seated in an ostium of a branch artery by extending through and out of a distal end of the guide catheter and anchoring in position within the vessel that is being treated. The stabilizing and sealing catheter includes, as part of a relatively flexible distal section, a balloon that locks the distal end of the stabilizing and sealing catheter in place to provide support to the therapeutic devices that are introduced and further seals the artery to prevent blood from entering the artery. A sealing cuff at a proximal end of the stabilizing and sealing catheter provides a seal between the exterior of the stabilizing and sealing catheter and the interior of the guide catheter. In addition, a fixing mechanism it utilized to lock the guide catheter in place to exchange therapeutic devices.Type: GrantFiled: August 25, 2015Date of Patent: June 2, 2020Assignee: Radius Medical LLCInventors: David Daniels, Richard M. DeMello, Maureen Finlayson, Jonathan R. DeMello
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Publication number: 20160051799Abstract: A coaxial stabilizing and sealing catheter provides increased support to a guide catheter that is seated in an ostium of a branch artery by extending through and out of a distal end of the guide catheter and anchoring in position within the vessel that is being treated. The stabilizing and sealing catheter includes, as part of a relatively flexible distal section, a balloon that locks the distal end of the stabilizing and sealing catheter in place to provide support to the therapeutic devices that are introduced and further seals the artery to prevent blood from entering the artery. A sealing cuff at a proximal end of the stabilizing and sealing catheter provides a seal between the exterior of the stabilizing and sealing catheter and the interior of the guide catheter. In addition, a fixing mechanism it utilized to lock the guide catheter in place to exchange therapeutic devices.Type: ApplicationFiled: August 25, 2015Publication date: February 25, 2016Inventors: David Daniels, Richard M. DeMello, Maureen Finlayson, Jonathan R. DeMello
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Publication number: 20100131000Abstract: This invention provides a device and controllably expansive tool tip for thrombus removal. According to one embodiment, the controllably expansive thrombus removal tool tip (e.g., a screen and/or mesh) may be collapsed by pushing on an actuating handle, and then advanced into a balloon or guiding catheter until a distal end of device has reached the thrombus. The tool tip is then expanded by pulling the actuating handle backward; and the radially extended (expanded) tool tip is moved to receive and substantially surround (e.g., encompass) the thrombus. The tool tip may then be collapsed again by pushing on the actuating handle to engage (tighten around) the thrombus, and the device may be withdrawn from a patient's body through the vascular system with the thrombus engaged by the tool tip.Type: ApplicationFiled: November 21, 2008Publication date: May 27, 2010Applicant: Radius Medical Technologies, Inc.Inventors: Richard M. DeMello, Jonathan R. DeMello, Richard R. Heuser, Maureen A. Finlayson
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Publication number: 20080228209Abstract: This invention provides a small diameter snare device and device for thrombus removal consisting of a hollow, elongate, thin-walled outer sheath. A single central core wire extends through the entire length of the sheath. The outer diameter of the core wire is sized close to the inner diameter of the sheath while allowing for axial sliding, in order to maximize the support to the body portion of the snare device. A tool tip or “capture segment” at the distal end of the sheath and core wire can be controllably expanded to engage a thrombus and remove the thrombus from the blood vessel.Type: ApplicationFiled: April 4, 2008Publication date: September 18, 2008Inventors: Richard M. DeMello, Jonathan R. DeMello, Richard R. Heuser, Maureen A. Finlayson, Jon Burkhardt, Craig Parker
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Publication number: 20070118165Abstract: This invention provides a small diameter snare device and device for thrombus removal consisting of a hollow, elongate, thin-walled outer sheath constructed from polymer, at least at a distal part thereof. A single central core wire extends through the entire length of the sheath. The outer diameter of the core wire is sized close to the inner diameter of the sheath while allowing for axial sliding, in order to maximize the support to the body portion of the snare device. The distal end of the core wire has a tapered section of reduced diameter or cross section to provide a “guidewire-like” flexibility to the distal portion of the device. A second wire (or wires) of about fifty percent or less of the inner diameter of the sheath is (are) shaped to form a snare loop or radially extended tool tip that is attached to the distal most portion of the central core wire.Type: ApplicationFiled: October 19, 2006Publication date: May 24, 2007Inventors: Jonathan DeMello, Maureen Finlayson, Richard DeMello, Jon Burkhardt, Bruce Flight
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Publication number: 20050234474Abstract: This invention provides a small diameter snare device consisting of a hollow, elongate, thin-walled polymer outer sheath. A single central core wire extends through the entire length of the sheath. The outer diameter of the core wire is sized close to the inner diameter of the sheath while allowing for axial sliding, in order to maximize the support to the body portion of the snare device. The distal end of the core wire has a tapered section of reduced diameter or cross section to provide a “guidewire-like” flexibility to the distal portion of the device. A second wire of about fifty percent of the inner diameter of the sheath is shaped to form a snare loop and the two ends are attached to the distal most portion of the central core wire via welding, soldering, or brazing.Type: ApplicationFiled: March 7, 2005Publication date: October 20, 2005Inventors: Richard DeMello, Maureen Finlayson, Bruce Flight, Jon Burkhardt
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Patent number: 6695836Abstract: A device and method for treating tissue at a treatment site. The device and method include supplying controlled energy to a heating portion of the device positioned within a tissue wall at the treatment site. The size of the heating portion and energy supplied provides for ablation of the tissue to form a cavity within the tissue wall without ablating the surfaces of the tissue wall. Treatment fluid can then be supplied through the device to the cavity to supplement growth of blood vessels or retard such growth at the treatment site. The device can also be used to create an injury zone at a treatment site without ablating tissue, wherein the injury zone can be injected with treatment fluid. The device and method has use anywhere within the body, especially in the regions of the heart.Type: GrantFiled: July 3, 2000Date of Patent: February 24, 2004Assignee: Radius Medical Technologies, Inc.Inventors: Richard M. DeMello, Maureen A. Finlayson
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Patent number: 5885227Abstract: A guidewire includes (i) a tapered core; (ii) an elongated non-radiopaque coil that is coincident with the core and extends over a distal portion of the core up to a proximal portion of a tapered end section of the core; and (iii) a radiopaque plastic tip that fits over the distal end of the core. The proximal end of the plastic tip may extend over the distal end of the non-radiopaque coil. The tip may then be attached to the coil by forcing the proximal end of the tip through the windings at the distal end of the coil. The distal end of the plastic tip extends slightly beyond the distal end of the core, to form a deformable bumper. The outer diameter of the proximal end of the plastic tip is the same as the outer diameter of the coil, which is the same diameter as proximal end of the core before its first taper. Accordingly, the guidewire has an essentially uniform outer diameter over its entire length.Type: GrantFiled: March 25, 1997Date of Patent: March 23, 1999Assignee: Radius Medical Technologies, Inc.Inventor: Maureen Finlayson
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Patent number: 5551444Abstract: A guidewire includes a tapered core, an elongated non-radiopaque inner coil that is coincident with the core and extends over a distal portion of the core, and a radiopaque outer coil that fits over a distal end of the inner coil. The inner coil tapers between its proximal end and distal end, to form a tapered distal end section. The outer diameter of the proximal end of the inner coil is the same as the outer diameter of the proximal end of the core, before its first taper, and similarly, the outer diameter of the outer coil is the same as the outer diameter of the inner coil before its taper. Accordingly, the guidewire has an essentially uniform outer diameter over its entire length. A rounded tip that acts as a deformable buffer is formed where the distal ends of the two coils and the core join. The distal end of the core is preferably flattened to provide a formable end to the guidewire. A low friction coating may be added to the wire, to facilitate movement of the wire through the arteries.Type: GrantFiled: May 31, 1995Date of Patent: September 3, 1996Assignee: Radius Medical Technologies, Inc.Inventor: Maureen Finlayson