Centrifugal blood pump assembly
According to a first aspect of the invention, there is provided a centrifugal blood pump assembly comprising a centrifugal blood pump comprising a housing having an inlet port and an outlet port for b... Read More
Inventors: Nojiri, Toshihiko; Nakazeki, Tsugito; Akamatsu, Teruaki;, Assignee: NTN Corporation (Osaka, JP) |
Centrifugal blood pump assembly having magnetic material embedded in impeller vanes
Therefore, an object of the invention is to provide a novel and improved centrifugal fluid pump assembly of the magnetic coupling type which does not carry air into the blood chamber or increase the b... Read More
Inventors: Nojiri, Toshihiko; Nakazeki, Tsugito;, Assignee: Terumo Kabushiki Kaisha (Tokyo, JP); NTN Corporation (Osaka, JP) |
Bearingless blood pump and electronic drive system
The invention addresses these needs by providing a blood pumping and pump drive system wherein a housing defines inlet and outlet ports, and a rotor is suspended in the housing and stabilized to maint... Read More
Inventors: Hart, Robert M.;, Assignee: Abiomed, Inc. (); Danvers, Inc. () |
Rotary blood pump with ceramic members
OF THE ILLUSTRATIVE EMBODIMENT Referring to the drawing, an electromagnetically driven ventricular assist device or blood pump 10 is illustrated. Electromagnetically driven blood pumps have the advan... Read More
Inventors: Cao, Hengchu; Lancisi, David M.;, Assignee: Kriton Medical, Inc. (Sacramento, CA) |
Magnetically driven rotor for blood pump
What is claimed is: 1. A pump for transferring fluids and comprising a pumping chamber with an inner periphery, an outer periphery and a central axis, a pair of fluid inlet ports arranged in oppositel... Read More
Inventors: Izraelev, Valentin M.;, Assignee: Advanced Bionics, Inc. (Hopkins, MN) |
Decanter centrifuge with a screw conveyor having a varying pitch
The invention claimed is: 1. A decanter centrifuge for separation of a supplied material in a light phase and a heavy phase, comprising an elongate bowl arranged for rotation about its longitudinal ax... Read More
Inventors: Dircks, Klaus; Madsen, Bent;, Assignee: Alfa Laval Copenhagen A/S (Soborg, DK) |
Organ stabilizer
In accordance with the illustrated embodiment of the present invention, a stabilizing mechanism is mounted on a flexible structure that can be conveniently manipulated to facilitate positioning the st... Read More
Inventors: Voss, Larry; Peng, Steven; Hancock, David; Carlson, Grace;, Assignee: Origin Medsystems, Inc. (Menlo Park, CA) |
Implantable self-inflating attenuation device
There is provided in accordance with one aspect of the present invention, a device for treating symptoms of a urinary tract dysfunction, comprising a compressible attenuation device having an expanded... Read More
Inventors: Connors, Kevin G.; Pintauro, William L.; Wallin, Sheila K.; Kilcoyne, John T.; Cao, Hung H.; Nguyen, Khoi M.; Yurek, Matthew T.;, Assignee: Solace Therapeutics, Inc. (Carlsbad, CA) |
Defibrillator electrode
What is claimed is: 1. An apparatus for use as an electrode for implantation in a patient and affixation to tissue therein having a three dimensional, time-varying surface topography, the apparatus co... Read More
Inventors: Milijasevic, Zoran; Holley, Loraine K.; Skalsky, Michael;, Assignee: Telectronics N.V. (NL) |
Implantation materials
We claim: 1. An anti-thrombogenic implantation material consisting essentially of a layer of a porous substrate made of individual fibers having voids filled with a biodegradable polymer and a layer o... Read More
Inventors: Kurumatani, Hajimu; Kataoka, Hiroshi; Yamada, Kyoko;, Assignee: Toray Industries, Inc. (JP) |
Multiple electrode support structures having optimal bio-mechanical characteristics
We claim: 1. An electrode support structure comprising a hub, the hub having a side wall with an outer surface, a base aligned along a major axis with the hub, a generally flexible spline element exte... Read More
Inventors: Kordis, Thomas F.; Panescu, Dorin; Whayne, James G.;, Assignee: EP Technologies, Inc. (Sunnyvale, CA) |
Transplants for myocardial scars
It is an object of the present invention to provide cell transplantation methods for treating scar tissue in the myocardium which overcome deficiencies in the prior art. The invention illustrates that... Read More
Inventors: Mickle, Donald A. G.; Li, Ren-Ke; Weisel, Richard D.;, Assignee: Genzyme Corporation (Cambridge, MA) |
Method and device for left atrial appendage occlusion
FIGS. 1-3 show an embodiment of an occluding device 10 having features of the invention where an occluding member 11 is secured to a retention member 12 that is arranged to fix the occluding member i... Read More
Inventors: Lesh, Michael D.; van der Burg, Erik J.;, Assignee: Appriva Medical, Inc. (Sunnyvale, CA) |
Method and apparatus for patching a tissue opening
The present invention provides a closure catheter and methods for closing an opening in tissue, a body lumen, hollow organ or other body cavity. The catheter and methods of its use are useful in a var... Read More
Inventors: Frazier, Andrew G. C.; Lesh, Michael D.; Roue, Chad C.; van der Burg, Erik J.;, Assignee: Appriva Medical, Inc. (Sunnyvale, CA) |
Filter apparatus for ostium of left atrial appendage
The invention provides a filtering membrane that allows blood to pass therethrough while substantially preventing blood clots formed in the atrial appendages from exiting therefrom. Such clots may cau... Read More
Inventors: VanTassel, Robert A.; Hauser, Robert G.; Schwartz, Robert; Holmes, David; Sutton, Gregg S.; Borillo, Thomas E.; Welch, Jeffrey;, Assignee: Atritech, Inc. (Minneapolis, MN) |
Patches and collars for medical applications and methods of use
Referring to FIGS. 1-3, a vascular closure system 100 generally includes two components: a arterial closure device ("ACD") 105 and a deployment instrument 110. The ACD 105 is slidably mounted to a va... Read More
Inventors: Houser, Russell A.; Hare, William D.;, Assignee: Advanced Catheter Engineering, Inc. (Livermore, CA) |
Device for containing embolic material in the LAA having a plurality of tissue retention structures
There is provided in accordance with one aspect of the present invention, a method of occluding an atrial appendage. The method comprises the steps of inhibiting changes in the volume of the appendage... Read More
Inventors: van der Burg, Erik J.; De Cicco, Dino; Frazier, Andrew G. C.; Khairkhahan, Alexander K.; Kreidler, Marc S.; Lesh, Michael D.; Roue, Chad C.;, Assignee: ev3 Sunnyvale, Inc. (Plymouth, MN) |
Control of tissue growth in textured blood-contacting surfaces
What is claimed is: 1. A blood pump comprising: a blood flow channel having a textured surface and a smooth surface adjacent to the textured surface; and a rotor disposed within the blood flow channel... Read More
Inventors: Poirier, Victor L.;, Assignee: Thermo Cardiosystems, Inc. (Woburn, MA) |
Pulp washing shower
The present invention provides a shower pipe with a single, substantially straight line of racetrack-shaped slots and a set of distributors, all of a single type, coupled to the slots, with a single t... Read More
Inventors: Dolan, Patrick Lee; Oram, Jeffrey Allen;, Assignee: Oramac, Inc. (Vancouver, WA) |
Narrow profile transformer having interleaved windings and cooling passage
The present invention is defined by the appended claims with specific embodiments being shown in the attached drawings. For the purpose of summarizing the invention, the invention relates to an improv... Read More
Inventors: Terlop, William E.; Casagrande, Serge;, Assignee: Top Gulf Coast Corporation (Tampa, FL) |
Brachytherapy seed deployment system
A preferred embodiment of the present brachytherapy seed deployment system comprises at least two seeds and a filament joining the at least two seeds. The seeds may be attached to the filament with, f... Read More
Inventors: Lowery, Guy Russell; Bowman, Eric E.;, Assignee: Bard Brachytherapy, Inc. (Carol Stream, IL) |
Apparatus and method for multiple organ procurement
The present invention includes a method and device for the removal of visceral organs from an animal for purposes of transplantation, such organs having branch connection with the aortic artery. As us... Read More
Inventors: Anaise, David;, Assignee: The Research Foundation of State Univ. of New York (Albany, NY) |
Bidirectional check valve catheter
The present invention provides an improved bidirectional check valve catheter which is easy to manufacture, installs easily and permits long term placement in the patient's bloodstream. In one aspect ... Read More
Inventors: Fenton, Jr., Paul V.; Young, Thomas M.; Gorman, William J.;, Assignee: Strato Medical Corporation (Beverly, MA) |
Valved self-perfusing catheter guide
According to the present invention, apparatus and methods are provided for directionally inserting vascular catheters and other therapeutic modalities within desired vessels. While the invention is pa... Read More
Inventors: Ginsburg, Robert;, Assignee: |
Method and apparatus for providing external perfusion lumens on balloon catheters
According to the present invention, methods and apparatus are provided for establishing perfusion blood flow during balloon angioplasty, vascular drug delivery, and related procedures. In a preferred ... Read More
Inventors: Klein, Enrique J.; Bajor, Jordan; Alba, Paul; Kaplan, Aaron V.;, Assignee: LocalMed, Inc. (Palo Alto, CA) |
Intravascular catheter with infusion array
The present invention provides an intravascular catheter for administering a therapeutic agent to a treatment site in the wall of a vessel. The catheter will have particular usefulness in treating art... Read More
Inventors: Kaplan, Aaron V.; Kermode, James R.; Klein, Enrique J.;, Assignee: Localmed, Inc. (Palo Alto, CA) |
High pressure perfusion device
The structure and function of the preferred embodiments can best be understood by reference to the drawings. The reader will note that the same reference numerals appear in multiple figures. Where th... Read More
Inventors: Spears, J. Richard; Levin, Philip S.; Zalesky, Paul J.;, Assignee: Therox, Inc. (Costa Mesa, CA); Wayne State University (Detroit, MI) |
Drain cannula
When appropriately indicated, modern medical treatment frequently includes the procedure of moving fluid from one location in the body to another or between the body and an external apparatus. In a ve... Read More
Inventors: Magram, Gary;, Assignee: Nemours Foundation (Jacksonville, FL) |
System and method for endoluminal grafting of bifurcated or branched vessels
The present invention provides a system and method for edoluminal grafting of a blood vessel or other anatomical conduit, in a region where one or more branch anatomical conduit(s) (e.g., side branche... Read More
Inventors: Wisselink, Willem;, Assignee: |
Delivery of a composition to the lung
In general, the invention features a method and apparatus for facilitating delivery of a composition to the lung via a non-surgical percutaneous approach that utilizes the pulmonary circulation. Accor... Read More
Inventors: Mann, Michael J.;, Assignee: |
Heart Surgery 
