Patents by Inventor James E. Lock
James E. Lock 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: 10478290Abstract: An expandable valve (100) and valve frame device that may be implanted within the body, for example, at a position of the heart. The device may be surgically implanted and subsequently expanded at a later time. The device may include an expandable sewing member (160) surrounding the valve frame (130) at a region between upstream and downstream ends of the device, for attaching the device to surrounding tissue. The device may include a membrane (140) for blocking leakage out the side of the valve frame between opposite ends. However, the membrane may include a side opening (170) for guiding fluid flow toward an appropriate anatomical outflow tract. The device may include a hood-like covering attached to a tissue wall, for smoothly receiving and guiding fluid flow along a perpendicular bend. The device may further include a flared opening at a downstream end, providing adequate space for device attachment.Type: GrantFiled: November 26, 2014Date of Patent: November 19, 2019Assignee: Children's Medical Center CorporationInventors: Sitaram Emani, James E. Lock, Pedro J. del Nido, Audrey C. Marshall
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Patent number: 9849006Abstract: Methods and apparatuses relate to treating vessels that have developed an aneurysm or vessels that are expected to develop an aneurysm (e.g., aortic aneurysm). The device may include a conduit having one or more coupling members that serve to couple the conduit and the vessel together. The conduit and coupling member(s) may cooperate to apply an inward radial force (e.g., physical pulling of the vessel wall inward) on the vessel wall, substantially preventing vessel enlargement. In some embodiments, coupling members are disposed at a midpoint region between opposite ends of the conduit, such as regularly along the length of the conduit. When deployed, the device reduces the risk of excessive vessel enlargement which may otherwise lead to undesirable rupture or dissection of the vessel.Type: GrantFiled: March 10, 2014Date of Patent: December 26, 2017Assignee: Children's Medical Center CorporationInventors: Benjamin W. Kozyak, James E. Lock
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Publication number: 20170014228Abstract: An expandable valve (100) and valve frame device that may be implanted within the body, for example, at a position of the heart. The device may be surgically implanted and subsequently expanded at a later time. The device may include an expandable sewing member (160) surrounding the valve frame (130) at a region between upstream and downstream ends of the device, for attaching the device to surrounding tissue. The device may include a membrane (140) for blocking leakage out the side of the valve frame between opposite ends. However, the membrane may include a side opening (170) for guiding fluid flow toward an appropriate anatomical outflow tract. The device may include a hood-like covering attached to a tissue wall, for smoothly receiving and guiding fluid flow along a perpendicular bend. The device may further include a flared opening at a downstream end, providing adequate space for device attachment.Type: ApplicationFiled: November 26, 2014Publication date: January 19, 2017Applicant: Children's Medical Center CorporationInventors: Sitaram Emani, James E. Lock, Pedro J. del Nido, Audrey C. Marshall
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Publication number: 20160015533Abstract: Methods and apparatuses relate to treating vessels that have developed an aneurysm or vessels that are expected to develop an aneurysm (e.g., aortic aneurysm). The device may include a conduit having one or more coupling members that serve to couple the conduit and the vessel together. The conduit and coupling member(s) may cooperate to apply an inward radial force (e.g., physical pulling of the vessel wall inward) on the vessel wall, substantially preventing vessel enlargement. In some embodiments, coupling members are disposed at a midpoint region between opposite ends of the conduit, such as regularly along the length of the conduit. When deployed, the device reduces the risk of excessive vessel enlargement which may otherwise lead to undesirable rupture or dissection of the vessel.Type: ApplicationFiled: March 10, 2014Publication date: January 21, 2016Applicant: Children's Medical Center CorporationInventors: Benjamin W. Kozyak, James E. Lock
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Patent number: 8092524Abstract: A replacement heart valve apparatus. The heart valve apparatus includes a stent and a valve frame having a substantially cylindrical body defining a lumen. The valve frame includes a plurality of curved wire pairs attached to the substantially cylindrical body. Each curved wire pair includes an inner curved wire and an outer curved wire. The wire frame further having a plurality of leaflets. Each leaflet is attached to a respective inner curved wire and extends over a respective outer curved wire, so as to position the body of the leaflet within the lumen of the valve frame.Type: GrantFiled: December 3, 2008Date of Patent: January 10, 2012Assignee: Children's Medical Center CorporationInventors: Alan Nugent, James E. Lock
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Patent number: 8070800Abstract: The present teachings relate to a heart valve prosthesis. The heart valve prosthesis includes a docking station (77) having a wire frame defining a lumen and a valve frame (91) for positioning within its lumen. The docking station includes a diaphragm (78) adapted to have an open position and a closed position, which provides a temporary control mechanism for preventing free regurgitation during the time period between the deployment of the docking station and the deployment of the valve frame, and a sealing mechanism for preventing paravalvar leakage.Type: GrantFiled: May 3, 2007Date of Patent: December 6, 2011Assignee: Children's Medical Center CorporationInventors: James E. Lock, Doff B. McElhinney
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Publication number: 20090222082Abstract: The present teachings relate to a heart valve prosthesis. The heart valve prosthesis includes a docking station (77) having a wire frame defining a lumen and a valve frame (91) for positioning within its lumen. The docking station includes a diaphragm (78) adapted to have an open position and a close position, which provides a temporary control mechanism for preventing free regurgitation during the time period between the deployment of the docking station and the deployment of the valve frame, and a sealing mechanism for preventing paravalvar leakage.Type: ApplicationFiled: May 3, 2007Publication date: September 3, 2009Inventors: James E. Lock, Doff B. McElhinney
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Publication number: 20090082858Abstract: A replacement heart valve apparatus. The heart valve apparatus includes a stent and a valve frame having a substantially cylindrical body defining a lumen. The valve frame includes a plurality of curved wire pairs attached to the substantially cylindrical body. Each curved wire pair includes an inner curved wire and an outer curved wire. The wire frame further having a plurality of leaflets. Each leaflet is attached to a respective inner curved wire and extends over a respective outer curved wire, so as to position the body of the leaflet within the lumen of the valve frame.Type: ApplicationFiled: December 3, 2008Publication date: March 26, 2009Applicant: Children's Medical Center CorporationInventors: Alan Nugent, James E. Lock
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Patent number: 7470285Abstract: A replacement heart valve apparatus. The heart valve apparatus includes a stent and a valve frame having a substantially cylindrical body defining a lumen. The valve frame includes a plurality of curved wire pairs attached to the substantially cylindrical body. Each curved wire pair includes an inner curved wire and an outer curved wire. The wire frame further having a plurality of leaflets. Each leaflet is attached to a respective inner curved wire and extends over a respective outer curved wire, so as to position the body of the leaflet within the lumen of the valve frame.Type: GrantFiled: February 7, 2005Date of Patent: December 30, 2008Assignee: Children's Medical Center Corp.Inventors: Alan Nugent, James E. Lock
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Patent number: 5709707Abstract: A self-centering umbrella-type septal closure device which includes a proximal and distal occluder each having a plurality of arms supporting the occlusion shells. Each of the proximal and distal support arms have at least three coils any one or more of which is secured by a centering mechanism so as to control the positioning of the closure device so that it is centered about a defect.Type: GrantFiled: November 19, 1996Date of Patent: January 20, 1998Assignee: Children's Medical Center CorporationInventors: James E. Lock, Carol A. Ryan, Clifford J. Dwyer
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Patent number: 5649950Abstract: A system for percutaneous transluminal front-end delivery and retrieval of a collapsible prosthetic occluder includes a front-end loading portion, a control assembly and an introducer and retrieval sheath assembly. The front-end loading portion includes a tapering lumen portion and a smaller diameter distal lumen portion. An infusion port communicates with the distal lumen portion immediately adjacent the distal end of the tapering lumen portion. A valve assembly seals the front-end loading portion lumen proximally of the collapsed occluder. The distal end of the front-end loading portion lumen is inserted into the proximal end of an introducer and retrieval sheath assembly. A control assembly advances the occluder through the front-end loading portion, the introducer and retrieval sheath assembly and into the defect site. The retrieval sheath assembly is less flexible than the introducer sheath and is sufficiently rigid to evert the deployed occluder when retracted thereagainst.Type: GrantFiled: May 1, 1995Date of Patent: July 22, 1997Assignee: C. R. BardInventors: George Bourne, Randall W. Davis, George Duval, Dennis Goodine, James E. Lock, Gerry Ouellette, Stanton B. Perry, Maria Wagner, Gregory R. Whittaker
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Patent number: 5626599Abstract: A method for percutaneous transluminal front-end delivery of a collapsible prosthetic occluder using a front-end loading portion, a control assembly and an introducer sheath. The prosthetic device is collapsed in a lumen of a front-end loading portion. A valve assembly seals the front-end loading portion lumen proximally of the collapsed occluder. Fluid is then infused through a port extending into the front-end loading portion in communication with the front-end loading portion lumen to remove air bubbles from the collapsed prosthetic device. The prosthetic device is advanced using a control assembly from the front-end loading portion into the introducer and ultimately into the defect site.Type: GrantFiled: May 1, 1995Date of Patent: May 6, 1997Assignee: C. R. BardInventors: George Bourne, Randall W. Davis, George Duval, Dennis Goodine, James E. Lock, Gerry Ouellette, Stanton B. Perry, Maria S. Wagner, Gregory R. Whittaker
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Patent number: 5591223Abstract: A radially expandable endoprosthesis device (10) comprises an elongated sleeve member (12) in which the radially outward expansion of the sleeve member (12) is initially limited by connecting strips (22) which are operatively connected to the sleeve member (12). The connecting strips (22) are selectively removable to allow further radial outward expansion. Further, the sleeve can be C-shaped in cross sections when expanded, allowing space for growth of a vessel contained therein.Type: GrantFiled: June 23, 1994Date of Patent: January 7, 1997Assignee: Children's Medical Center CorporationInventors: James E. Lock, Valerie Mandell, Stanton Perry
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Patent number: 5486193Abstract: A system for percutaneous transluminal front-end delivery of a collapsible prosthetic occluder includes a front-end loading portion, a control assembly and an introducer. The front-end loading portion includes a tapering lumen portion and a smaller diameter distal lumen portion. An infusion port communicates with the distal lumen portion immediately adjacent the distal end of the tapering lumen portion. A valve assembly seals the front-end loading portion lumen proximally of the collapsed occluder. The distal end of the front-end loading portion lumen is inserted into the proximal end of an introducer. A control assembly advances the occluder through the front-end loading portion, the introducer and into the defect site.Type: GrantFiled: May 1, 1995Date of Patent: January 23, 1996Assignee: C. R. Bard, Inc.Inventors: George Bourne, Randall W. Davis, George Duval, Dennis Goodine, James E. Lock, Gerry Ouellette, Stanton B. Perry, Maria Wagner, Gregory R. Whittaker
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Patent number: 5451235Abstract: An occlusion device for percutaneous transluminal correction of intracardiac and vascular septal defects is disclosed. The device comprises a pair of opposed occluders that are connected to one another using an interconnection that allows the occluders to move relative to one another. Additionally, a means for fluoroscopically visualizing and distinguishing the individual occluders of the device is also disclosed.Type: GrantFiled: April 14, 1994Date of Patent: September 19, 1995Assignee: C.R. Bard, Inc.Inventors: James E. Lock, Rudy Davis, George Duval
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Patent number: 5383926Abstract: A radially expandable endoprosthesis device (10) comprises an elongated sleeve member (12) in which the radially outward expansion of the sleeve member (12) is initially limited by connecting strips (22) which are operatively connected to the sleeve member (12). The connecting strips (22) are selectively removable to allow further radial outward expansion. Further, the sleeve can be C-shaped in cross sections when expanded, allowing space for growth of a vessel contained therein.Type: GrantFiled: November 23, 1992Date of Patent: January 24, 1995Assignee: Children's Medical Center CorporationInventors: James E. Lock, Valerie Mandell, Stanton Perry