Patents Examined by Cheryl Miller
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Patent number: 9839733Abstract: Blood pump systems including a continuous flow blood pump and methods for controlling a continuous flow blood pump operate the blood pump to simulate target pressure-flow characteristics that are different from native pressure-flow characteristics of the blood pump. A method for controlling a continuous flow blood pump driven by a motor includes operating the motor at a first rotational rate. A first flow rate of the continuous flow blood pump driven at the first rotational rate is measured and/or estimated. The first flow rate is used to determine a second rotational rate based on target pump characteristic data corresponding to target pressure-flow characteristics for the continuous flow blood pump different from pressure-flow characteristics of the continuous flow blood pump when driven by the motor at a constant rotational speed. The second rotational rate is different from the first rotational rate. The motor is then operated at the second rotational rate.Type: GrantFiled: June 22, 2015Date of Patent: December 12, 2017Assignee: TC1 LLCInventors: Steven H. Reichenbach, Yu Fai Law
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Patent number: 9833345Abstract: The present embodiments provide a stent for use in a medical procedure that comprises a series of proximal apices disposed at a proximal end of the stent and a series of distal apices disposed at a distal end of the stent. In a first embodiment, a first proximal apex comprises a bore for receiving a trigger wire, and a second proximal apex, disposed adjacent to the first proximal apex, comprises at least one barb. In an alternative embodiment, a first proximal apex comprises a first bore and a second, adjacent proximal apex comprises a second bore, such that a single trigger wire may be disposed through the first and second bores to restrain the first and second proximal apices during delivery.Type: GrantFiled: March 26, 2012Date of Patent: December 5, 2017Assignee: Cook Medical Technologies LLCInventors: William K. Dierking, David E. Hartley, Blayne A. Roeder
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Patent number: 9827090Abstract: A stented valve having at least one leaflet made of pericardium or other material having a relatively thin profile at the annulus. The leaflets are attached via chords to a stent frame, where the chords are positioned to mimic the native valve anatomy and functionality. In particular, the valves of one exemplary embodiment of the invention are sized to replace a mitral valve and therefore the chords are arranged to prevent prolapse of the leaflets into the atrium. The stented valve has a relatively short height at its annulus due to the positioning of the chords. In addition, the stented valve is capable of being crimped to a small enough size that it can be delivered to the implantation site via transcatheter delivery systems and methods.Type: GrantFiled: December 3, 2012Date of Patent: November 28, 2017Assignee: Medtronic, Inc.Inventors: Alexander J. Hill, Cynthia Clague, Carol E. Eberhardt, Ana Menk, Mark J. Capps, Billie Millwee, Janice Lynn Shay, Debra Taitague, Joseph C. Morrow, Jerald Redmond
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Patent number: 9788933Abstract: An aortic stent-graft may include a tubular graft extending from a proximal end to a distal end, the graft comprising a proximal sealing portion and an intermediate portion, wherein a proximal end of the intermediate portion abuts the distal end of the proximal sealing portion. At least one sealing stent may be attached to the proximal sealing portion. A first fenestration window is disposed in the intermediate portion. The first fenestration window has a length determined by the equation L=1.23*D?24 millimeters, where L is the length of the first fenestration window. D is between about 24 millimeters and 45 millimeters.Type: GrantFiled: October 28, 2011Date of Patent: October 17, 2017Assignee: Cook Medical Technologies LLCInventors: Jichao Sun, Jarin Kratzberg, David D. Grewe, Kenneth Haselby, Matthew S. Huser, Steven J. Charlebois, William Kurt Dierking, Alan R. Leewood, Brandt M. Davis, Blayne A. Roeder
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Patent number: 9770336Abstract: A locking member for implantation in a hip joint of a patient is provided. The hip joint has a caput femur integrated with a collum femur having a center axis extending longitudinal along the collum and caput femur in the center thereof. The locking member is adapted to assist in the fixation of a medical device, having an artificial hollow caput femur surface, to the collum and/or caput femur, wherein said artificial caput femur surface comprises at least one extending portion adapted to clasp a portion of the caput and/or collum femur, and wherein said locking member comprises an element adapted to lock said artificial caput femur surface such that the caput femur remains clasped and restrained in said artificial caput femur surface.Type: GrantFiled: July 12, 2010Date of Patent: September 26, 2017Inventor: Peter Forsell
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Patent number: 9757233Abstract: A device, a kit and a method is presented for permanently augmenting the pump function of the left heart. The mitral valve plane is assisted in a movement along the left ventricular long axis during each heart cycle. The very close relationship between the coronary sinus and the mitral valve is used by various embodiments of a medical device providing this assisted movement. By means of catheter technique an implant is inserted into the coronary sinus, the device is augmenting the up and down movement of the mitral valve and thereby increasing the left ventricular diastolic filling when moving upwards and the piston effect of the closed mitral valve when moving downwards.Type: GrantFiled: May 23, 2013Date of Patent: September 12, 2017Assignee: Synergio AGInventor: Jan Otto Solem
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Patent number: 9744031Abstract: The invention relates to a prosthetic heart valve (100) for an endoprosthesis (1) used in the treatment of a stenotic cardiac valve and/or a cardiac valve insufficiency. The prosthetic heart valve (100) comprises of a plurality of leaflets (102), which consist of a natural and/or synthetic material and have a first opened position for opening the heart chamber and a second closed position for closing the heart chamber, the leaflets (102) being able to switch between their first and second position in response to the blood flow through the heart.Type: GrantFiled: May 24, 2011Date of Patent: August 29, 2017Assignee: JENAVALVE TECHNOLOGY, INC.Inventors: Michael J. Girard, Randy Lane, Arnulf Mayer
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Patent number: 9693885Abstract: Radiopaque markers for use with stents implantable within a body vessel are provided with one or more through-holes. Each through-hole extends through the thickness of the marker to expose a portion of the stent underlying the marker. The marker is welded to the stent through each through-hole. Also provided are stents incorporating a radiopaque marker having one or more through-holes suitable for receiving a plug weld. Methods are provided for securing a radiopaque marker having one or more through-holes to a stent via welds.Type: GrantFiled: January 11, 2013Date of Patent: July 4, 2017Assignee: Depuy Synthes Products, Inc.Inventor: Juan A. Lorenzo
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Patent number: 9668857Abstract: A prosthetic heart valve includes a stent body with a generally tubular annulus section, which may include one or more circumferential rows of cells. One or more prosthetic valve elements mounted to the stent body operate to allow blood flow in an antegrade direction but to substantially block flow in a retrograde direction. A cuff is attached to the stent body and positioned on a luminal surface of the stent body. At least one sealing member is attached to the cuff. The sealing member may be patch with an open side facing in a first axial direction and a closed side facing in a second axial direction opposite to the first axial direction. Flow of blood in the second axial direction will tend to force blood into the sealing member and cause the sealing member to billow outwardly relative to the stent body.Type: GrantFiled: September 30, 2014Date of Patent: June 6, 2017Assignee: St. Jude Medical, Cardiology Division, Inc.Inventors: Peter N. Braido, Mina S. Fahim
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Patent number: 9662152Abstract: A method of manufacturing a resorbable balloon designed to contain bone cement for vertebroplasty or kyphoplasty applications is described. The resorbable balloon can be inserted into a vertebral body following vertebral cavitation and filled with bone cement. The balloon remains in place in the vertebral body and resorbs over time. Methods and apparatus are also described for delivering therapeutic agents using collapsible, resorbable balloons. The balloons may be nested and filled with various therapeutic agents that are released over time at rates dependent upon structures and degradation rates of the balloons. Furthermore, the function of the hollow devices can encompass both encapsulation and therapeutic substance delivery roles simultaneously.Type: GrantFiled: April 15, 2009Date of Patent: May 30, 2017Assignee: NuVasive, Inc.Inventors: Susan Lynn Riley, Alexander R. Vaccaro, Joseph Tai
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Patent number: 9655726Abstract: A radial-capitellar implant for surgical replacement of the capitellum of the humerus and, optionally, the head of the radius. The radial-capitellar implant includes a capitellar implant or surface replacement arthroplasty of the capitellum and a radial prosthesis for replacement of the head of the radius. In one embodiment the radial prosthesis includes an articular head which moveable articulates with a stem implantable in the radius.Type: GrantFiled: November 28, 2006Date of Patent: May 23, 2017Assignee: Mayo Foundation for Medical Research and EducationInventors: William P. Cooney, III, Bernard F. Morrey, David A. Leibel
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Patent number: 9642728Abstract: A stent for placement in a body lumen is fabricated by forming a tube having an undeployed diameter sized for the tube to be placed on a deployment balloon and advanced through a body lumen to a deployment site. The tube is expandable upon inflation of the balloon to an enlarged diameter sized for the tube to be retained within the lumen at the site upon deflation and withdrawal of the balloon. The tube has a stent axis extending between first and second axial ends of the tube. The tube has an exterior surface and an interior surface. The tube is polished to polish the exterior surface to a smooth surface finish and with at least a portion of the interior surface having a rough surface finish rougher than the surface finish of the exterior surface.Type: GrantFiled: April 16, 2015Date of Patent: May 9, 2017Assignee: Covidien LPInventor: Paul Thompson
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Patent number: 9636241Abstract: An expandable, bioabsorbable stent having a coiled-coil configuration is described. The stent further comprises regions of variable pitch that allow for variation in either rigidity, or variability diameter within sub-regions along the length of the deployed stent. By varying the diameter allows the stent to extend into regions such as branched vessels, or into the neck of aneurysms. In some embodiments, the stent comprises longitudinal support fibers that run substantially the length of the deployed stent to provide additional strength. In addition, the stent may also comprise regional support fibers that run less than the length of the stent, and which provide increased regional strength while permitting flexibility of the stent. The stent further comprises micro-tubes that are configured to be visible using medical imaging techniques. The stent can be manufactured from materials that are bioabsorbable and/or include the ability to release pharmacologically active substances over time.Type: GrantFiled: August 16, 2012Date of Patent: May 2, 2017Assignee: MANLI INTERNATIONAL LTDInventor: Shih-Horng Su
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Patent number: 9610160Abstract: A method is provided for implanting a valve having at least one valve leaflet within the cardiovascular system of a subject. One step of the method includes preparing a substantially dehydrated bioprosthetic valve and then providing an expandable support member having oppositely disposed first and second ends and a main body portion extending between the ends. Next, the substantially dehydrated bioprosthetic valve is attached to the expandable support member so that the substantially dehydrated bioprosthetic valve is operably secured within the main body portion of the expandable support member. The expandable support member is then crimped into a compressed configuration and placed at a desired location within the cardiovascular system of the subject. Either before or after placement at the desired location, fluid or blood re-hydrates the substantially dehydrated bioprosthetic valve.Type: GrantFiled: April 23, 2013Date of Patent: April 4, 2017Assignee: THE CLEVELAND CLINIC FOUNDATIONInventors: Jose Luis Navia, Ji-Feng Chen
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Patent number: 9610158Abstract: A method of making a replacement heart valve device whereby a fragment of biocompatible tissue material is treated and soaked in one or more alcohol solutions and a solution of glutaraldehyde. The dried biocompatible tissue material is folded and rehydrated in such a way that forms a two- or three-leaflet/cusp valve without affixing of separate cusps or leaflets or cutting slits into the biocompatible tissue material to form the cusps or leaflets. After the biocompatible tissue material is folded, it is affixed at one or more points on the outer surface to the inner cavity or a stent.Type: GrantFiled: November 13, 2012Date of Patent: April 4, 2017Assignee: COLIBRI HEART VALVE LLCInventors: David Paniagua, R. David Fish, Eduardo Induni, Carlos Meija, Fransisco Lopez-Jimenez
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Patent number: 9592206Abstract: A method for controlling generation of biologically desirable voids in a composition placed in proximity to bone or other tissue in a patient by selecting at least one water-soluble inorganic material having a desired particle size and solubility, and mixing the water-soluble inorganic material with at least one poorly-water-soluble or biodegradable matrix material. The matrix material, after it is mixed with the water-soluble inorganic material, is placed into the patient in proximity to tissue so that the water-soluble inorganic material dissolves at a predetermined rate to generate biologically desirable voids in the matrix material into which bone or other tissue can then grow.Type: GrantFiled: January 30, 2014Date of Patent: March 14, 2017Assignee: Orthomedex LLCInventor: James A Walls
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Patent number: 9579194Abstract: A method and device for reducing paravalvular leakage upon implantation of a replacement heart valve is provided. The valve assembly includes a tissue or bioprosthetic heart valve attached to an anchoring structure. The anchoring structure includes an inlet rim that is substantially C-shaped in cross section to form a concave landing zone. The anchoring structure self-seats when implanted in the sinus of a patient with the proximal and distal ends of the C-shaped inlet rim pushed against the aorta to effectively prevent paravalvular leakage.Type: GrantFiled: October 21, 2009Date of Patent: February 28, 2017Assignee: Medtronic ATS Medical, Inc.Inventors: David Elizondo, Andrzej M. Malewicz, Matthew W. Weston, Keith E. Myers
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Patent number: 9579223Abstract: Protective sleeve for a medical device having a moveable joint including a tubular assembly comprising a flexible material that satisfies International Organization for Standardization ISO13997 (1999) for a cut resistance of at least ISO level 5. The tubular assembly has a first end portion, a second end portion, and a length extending therebetween. The tubular assembly includes a base member made of the flexible material having an internal surface and an external surface and a reinforcing member made of the flexible material coupled to the base member along the internal surface and the external surface of the base member. The reinforcing member forms a channel at the first end portion. The tubular assembly has an internal cross dimension sized to receive a medical device having a moveable joint therein. The protective sleeve further includes an adjustment member received in the channel to radially adjust the first end portion.Type: GrantFiled: August 14, 2014Date of Patent: February 28, 2017Assignee: SHRINERS HOSPITAL FOR CHILDRENInventors: Todd DeWees, Steve Miller
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Patent number: 9572692Abstract: Methods of treating a diseased blood vessel exhibiting stenosis with a bioabsorable stent are disclosed. The implanted stent supports the section of the vessel at an increased diameter for a period of time to allow the vessel to heal. The stent loses radial strength sufficient to support the section of the vessel in less than 6 months after implantation, loses mechanical integrity, and then erodes away from the section. The biodegradable stent results in changes in properties of plaque with time as the stent degrades. The time-dependent properties include the luminal area of the plaque and plaque geometric morphology parameters.Type: GrantFiled: July 27, 2009Date of Patent: February 21, 2017Assignee: Abbott Cardiovascular Systems Inc.Inventors: Richard Rapoza, Yunbing Wang, James P. Oberhauser, Syed F. A. Hossainy
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Patent number: 9554898Abstract: A method of making a replacement heart valve device whereby a fragment of biocompatible tissue material is treated and soaked in one or more alcohol solutions and a solution of glutaraldehyde. The dried biocompatible tissue material is folded and rehydrated in such a way that forms a two- or three-leaflet/cusp valve without affixing of separate cusps or leaflets or cutting slits into the biocompatible tissue material to form the cusps or leaflets. After the biocompatible tissue material is folded, it is affixed at one or more points on the outer surface to the inner cavity or a stent.Type: GrantFiled: September 30, 2014Date of Patent: January 31, 2017Assignee: COLIBRI HEART VALVE LLCInventors: David Paniagua, R. David Fish