Patents by Inventor Richard Rhee

Richard Rhee 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).

  • Publication number: 20050043791
    Abstract: An annuloplasty ring having a three-dimensional discontinuous form generally arranged about an axis with two free ends that are axially offset. The ring is particularly suited for repair of the tricuspid valve, and more closely conforms to the annulus shape. The ring is more flexible in bending about radially extending axes than about the central axis. The ring may have an inner structural support covered by a pliable sleeve and/or a fabric tube. The structural support may have a varying cross-section, such as a C-shaped cross-section in a mid-section between two free ends and a rectangular cross-section at the free ends. A deliver template having a mounting ring with about the same shape as the ring facilitates implant, and may be releasably attached to a delivery handle. The deliver template may include a plurality of cutting guides for releasably attaching the annuloplasty ring thereto while presenting maximum outer surface area of the ring.
    Type: Application
    Filed: June 14, 2004
    Publication date: February 24, 2005
    Inventors: Patrick McCarthy, Richard Rhee, Stefan Schreck
  • Patent number: 6350281
    Abstract: A sizer measures a valve annulus to determine a size of an artificial heart valve to be sewn in the valve annulus during heart-valve replacement surgery. The sizer includes a support member and a resilient member. The support member has a size corresponding to the size of one of a plurality of artificial heart valves. The resilient member is disposed about the support member and has a resiliency substantially equal to the resiliency of a sewing ring of the artificial heart valve. Accordingly, when a surgeon inserts the sizer into a valve annulus, the resilient member conforms to the shape of the valve annulus much like the sewing ring will conform when positioned in the annulus and sewn in place. The surgeon is therefore able to determine more accurately the size of the annulus and, thereafter, to select a properly sized artificial valve.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: February 26, 2002
    Assignee: Edwards Lifesciences Corp.
    Inventor: Richard Rhee
  • Patent number: 6231601
    Abstract: A method of surgery including bending a multi-purpose surgical implement handle that has proximal and distal ends. A gripping section is located toward the proximal end, and an attachment section is located toward the distal end. An adjusting section is interposed between the gripping section and the attachment section. The adjusting section may be bent by a human user at virtually any discrete location along the section. The adjusting section may include an increased-adjustability portion which is easier to bend than other portions of the adjusting section. The method includes attaching a surgical implement to the attaching section of the handle, and bending the adjusting section at least once prior to inserting the implement through a surgical opening to a surgical field. The method further may include bending the adjusting section more than once to form multiple bends therein.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: May 15, 2001
    Assignee: Edwards Lifesciences Corporation
    Inventors: Keith Myers, Ross Bartholomew, Robert J. Todd, Carl Swindle, Charles Weyrauch, Richard Rhee, Jane Li, Jerry Jackman, Victor Packham
  • Patent number: 6197053
    Abstract: In general, the present invention comprises an holding apparatus for facilitating implantation of a prosthetic heart valve within a mammalian heart. The holding apparatus generally comprises a cage or enclosure having a heart valve prosthesis retention space defined therewith. The proximal end of the holding apparatus is releasably attached to the proximal end of the heart valve prosthesis such that, when the holding apparatus is advanced in a forward direction, a “pulling” force will be exerted upon the proximal end of the prosthesis, rather than a “pushing” force being exerted upon the distal end of the prosthesis.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: March 6, 2001
    Assignee: Edwards Lifesciences Corporation
    Inventors: Delos M. Cosgrove, Richard Rhee, Diana Nguyen
  • Patent number: 6162172
    Abstract: Surgical apparatus and associated methods of use are provided for retracting tissue around an incision. The apparatus includes a member having an inner peripheral surface and an outer peripheral surface. An adjustable aperture is definable within the inner peripheral surface as the member is adjusted between a compressed condition in which the aperture is substantially closed and an expanded condition in which the aperture is substantially open. The apparatus is positioned within a surgical incision in the compressed condition, and is adjusted to the expanded condition in situ to define an opening within the incision through the aperture whereby a surgical field may be viewed and/or accessed.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: December 19, 2000
  • Patent number: 6071307
    Abstract: An endoluminal grafts is provided which is constructed to be radially collapsed and/or radially compressed to a small diameter. The graft has wireforms which generally comprise a wire deformed into generally annular configuration and consisting of a plurality of curvilinear wave forms. The wave forms have a plurality of first apices in linear alignment with each other, a plurality of second apices in linear alignment with each other, and a plurality of curvilinear segments traversing back and forth between said first and second apices. The graft is i) initially disposable in a radially compact configuration of a first diameter and ii) subsequently expandable to a radially expanded configuration of a second diameter, said second diameter being larger than said first diameter.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: June 6, 2000
    Assignee: Baxter International Inc.
    Inventors: Richard Rhee, John McIntyre, Seik Oh
  • Patent number: 6004329
    Abstract: A multi-purpose surgical implement handle has proximal and distal ends. A gripping section is located toward the proximal end, and an attachment section is located toward the distal end. An adjusting section is interposed between the gripping section and the attachment section. The adjusting section may be bent by a human user at virtually any discrete location along the section. The adjusting section may include an increased-adjustability portion which is easier to bend than other portions of the adjusting section.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: December 21, 1999
  • Patent number: 5814096
    Abstract: An aortic valve sizing obturator apparatus for employment in determining the correct size of an aortic annulus. The apparatus includes a cylindrical obturator body with a flange member formed thereabout. At least the under surface of the flange member is of a non-planar, multi-curvate configuration to thereby be complimentary in shape to the annulus of an aortic valve when seated in the annulus during size determination. Within the cylindrical obturator body can be disposed a handle connector to which a handle can be attached during placement of the obturator apparatus within an annulus. The present invention also includes methodology for determining the size of an aortic valve annulus by employing a plurality of differently-sized aortic valve sizing obturators defined above and individually seating them sequentially within the aortic annulus until an obturator that reflects annulus size is located.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: September 29, 1998
    Assignee: Baxter International Inc.
    Inventors: Hung Lam, Lisa Deseran, Richard Rhee
  • Patent number: 5804366
    Abstract: An apparatus for sodding onto the inner lumenal surface of a synthetic graft of harvested and concentrated microvessel endothelial cells from liposuctioned fat tissues, which harvested cells are formed into a "pellet" of isolated endothelial cells in loose aggregations, includes a sodding tube having a single rigid outer wall bounding a sodding chamber. A filter pack assembly is provided to communicate the pellet of cells from a processing vessel to the graft. This filter pack assembly includes a series of successively finer filter members cooperatively defining a series of turbulent-flow chambers in which aggregations of cells too large to pass through a particular filter are exposed to liquid flow turbulence which is effective to break up the aggregations.
    Type: Grant
    Filed: February 9, 1995
    Date of Patent: September 8, 1998
    Assignee: Baxter International Inc.
    Inventors: Can B. Hu, Minh T. Ma, Than Nguyen, Richard Rhee, Keith Myers
  • Patent number: 5800531
    Abstract: In general, the present invention comprises an holding apparatus for facilitating implantation of a prosthetic heart valve within a mammalian heart. The holding apparatus generally comprises a cage or enclosure having a heart valve prosthesis retention space defined therewith. The proximal end of the holding apparatus is releasably attached to the proximal end of the heart valve prosthesis such that, when the holding apparatus is advanced in a forward direction, a "pulling" force will be exerted upon the proximal end of the prosthesis, rather than a "pushing" force being exerted upon the distal end of the prosthesis.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: September 1, 1998
    Assignee: Baxter International Inc.
    Inventors: Delos M. Cosgrove, Richard Rhee, Diana Nguyen
  • Patent number: 5409833
    Abstract: A processing vessel for isolating microvessel endothelial cells from liposuctioned fat tissues includes a fat-receiving basket defined by polyester screen material. Fat tissue removed from a patient by liposuction is received into the basket and is rinsed and digested with an enzymatic solution. The freed microvessel endothelial cells from the fat tissues are separated from the fat cells, and from blood cells and other materials which may be present in the basket by centrifuging. A bottom chamber of the processing vessel is configured to define a "pellet" of isolated endothelial cells which may be removed from the processing vessel for deposition on the inner lumenal surface of a synthetic graft which the fat-donor patient is to receive.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: April 25, 1995
    Assignee: Baxter International Inc.
    Inventors: Can B. Hu, Minh T. Ma, Than Nguyen, Richard Rhee, Keith Myers