Patents by Inventor Donald P. Elliott

Donald P. Elliott 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).

  • Patent number: 5772583
    Abstract: A sternal retractor for applying an opening force evenly along the respective edges of a patient's sternum during heart surgery comprises a curved rack having a length, a width, and a thickness, wherein the rack is curved in the thickness direction, hinged arms mounted to the rack, a cog mechanism for forcing one of the arms to move along the rack, and retractor blades pivotally mounted to the arms. An atrial retractor which are used to retract the left and right atrium connects to an arm of the sternal retractor by an H-shaped mounting rod assembly. The assembly comprises two elongated rods mounted in spaced parallel relationship by a clamp proximate the center of the rods. A ball clamp associated with the sternal retractor and atrial retractor comprises locking discoid blocks for releasably interconnecting a plurality of rods together.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: June 30, 1998
    Inventors: John T. M. Wright, Donald P. Elliott, Francis C. Wells
  • Patent number: 5683405
    Abstract: A vascular occluder clip including a resiliently-biased pair of clamping elements extending transversely to longitudinally-extending members. Gripping loops or pads are provided for grasping by the user and compression of the members against the biasing force to separate the clamping elements. The gripping loops or pads extend from the longitudinal members on the opposite side thereof from the clamping elements.
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: November 4, 1997
    Assignee: Research Medical Inc.
    Inventors: Vahe S. Yacoubian, Douglas G. Fox, John T.M. Wright, Donald P. Elliott
  • Patent number: 5674279
    Abstract: Adjustable, flexible suture rings, tricuspid and tricuspid annuloplasty rings having internal drawstrings that emerge from the rings on the annular faces so that the drawstring knots are out of the bloodstream, the drawstrings being contained in clearly marked channels, the mitral ring having a curved semi-flexible stiffener member in the anterior segment to maintain intertrigonal distance during implantation are disclosed.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: October 7, 1997
    Assignee: Medtronic, Inc.
    Inventors: John T. M. Wright, Donald P. Elliott
  • Patent number: 5306296
    Abstract: Adjustable, flexible suture 2ings, mitral and tricuspid annuloplasty 2ings having internal drawstrings that emerge from the 2ings on the annular faces so that the drawstring knots are out of the bloodstream, the drawstrings being contained in clearly marked channels, the mitral 2ing having a curved semi-flexible stiffener member in the anteri/r segment to maintain intertrigonal distance during implantati/n are disclosed.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: April 26, 1994
    Assignee: Medtronic, Inc.
    Inventors: John T. M. Wright, Donald P. Elliott
  • Patent number: 5201880
    Abstract: Adjustable, flexible mitral and tricuspid annuloplasty rings having internal drawstrings that emerge from the rings on the annular faces so that the drawstring knots are out of the bloodstream, the drawstrings being contained in clearly marked channels, the mitral ring having a curved semi-flexible stiffener member in the anterior segment to maintain intertrigonal distance during implantation, the plane of the anterior segment lying at an angle of about 30.degree.-75.degree. to the plane of the posterior segment, arcing up across the anterior leaflet to prevent outflow tract obstruction.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: April 13, 1993
    Assignee: Pioneering Technologies, Inc.
    Inventors: John T. M. Wright, Donald P. Elliott, Francis C. Wells
  • Patent number: 5071414
    Abstract: An improvement to a disposable diaper, forming a self packaging pocket integral with one of the body panels of the diaper and comprising a pliant membrane disposed and secured to the outside moisture impervious backing surface of the diaper body over the end area thereof and forming a transverse open ended pocket to be turned inside out over the rolled up diaper after its use to seal and compactly store the used diaper in a rolled up configuration.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: December 10, 1991
    Inventor: Donald P. Elliott
  • Patent number: 4947843
    Abstract: A single patient use disposable cardiac insulator to aid myocardial preservation during cardio-pulmonary bypass procedures which thermally insulates the myocardium from the pericardial cavity is disclosed.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: August 14, 1990
    Assignee: Pioneering Technologies, Inc.
    Inventors: John T. Wright, Donald P. Elliott
  • Patent number: 4822346
    Abstract: This invention relates to a novel and improved chest drainage apparatus characterized by a bottle housing a fluid collection chamber and a fluid inlet connectable to receive fluid and air from a chest cavity to be drained, air inlet and exhaust ports downstream of the fluid inlet open to the atmosphere within the air space above the fluid collected, and a U-tube between the fluid inlet and the air exhaust port capable of collecting and retaining an amount of fluid effective to provide a visual indication of any air flow into the system; a subassembly including an air chamber containing a check valve effective when connected to receive air from the exhaust port of the bottle to prevent the backflow thereof into the system; and a negative pressure relief valve connected to the air intake port automatically operative to limit the negative pressure, if any, in the air space above the fluid to a predetermined maximum.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: April 18, 1989
    Assignee: C. R. Bard, Inc.
    Inventor: Donald P. Elliott
  • Patent number: 4747844
    Abstract: This invention relates to a novel and improved chest drainage apparatus characterized by a bottle housing a fluid collection chamber and a fluid inlet connectable to receive fluid and air from a chest cavity to be drained, air inlet and exhaust ports downstream of the fluid inlet open to the atmosphere within the air space above the fluid collected, and a U-tube between the fluid inlet and the air exhaust port capable of collecting and retaining an amount of fluid effective to provide a visual indication of any air flow into the system; a subassembly including an air chamber containing a check valve effective when connected to receive air from the exhaust port of the bottle to prevent the backflow thereof into the system; and a negative pressure relief valve connected to the air intake port automatically operative to limit the negative pressure, if any, in the air space above the fluid to a predetermined maximum.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: May 31, 1988
    Assignee: C. R. Bard, Inc.
    Inventor: Donald P. Elliott
  • Patent number: 4738671
    Abstract: This invention relates to a novel and improved chest drainage apparatus characterized by a bottle housing a fluid collection chamber and a fluid inlet connectable to receive fluid and air from a chest cavity to be drained, air inlet and exhaust ports downstream of the fluid inlet open to the atmosphere within the air space above the fluid collected, and a U-tube between the fluid inlet and the air exhaust port capable of collecting and retaining an amount of fluid effective to provide a visual indication of any air flow into the system; a subassembly including an air chamber containing a check valve effective when connected to receive air from the exhaust port of the bottle to prevent backflow thereof into the system; and a negative pressure relief valve connected to the air intake port automatically operative to limit the negative pressure, if any, in the air space above the fluid to a predetermined maximum.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: April 19, 1988
    Assignee: C. R. Bard, Inc.
    Inventors: Donald P. Elliott, William R. King
  • Patent number: 4715856
    Abstract: This invention relates to an improved chest fluid drainage bottle of the type having a fluid collection chamber connectable to receive fluid sucked from the patient's chest, the improvement consisting of an improved air leak detection system characterized by a fluid filled U-tube downstream of the air space overlying the fluid collecting chamber cooperating therewith to define an air leak detector substantially insensitive to small intermittent variations in upstream pressure while, at the same time, providing an observer with a reliable visual indication of a continuous upstream leak. The improvement also encompasses an anti-splash baffle adjacent the outlet of the U-tube effective to prevent the fluid therein from leaving same and, perhaps, entering the vacuum system upon the application of larger than normal intermittent upstream positive pressure surges.
    Type: Grant
    Filed: August 13, 1985
    Date of Patent: December 29, 1987
    Assignee: C. R. Bard, Inc.
    Inventors: Donald P. Elliott, William L. Halseth
  • Patent number: 4544370
    Abstract: This invention relates to an improved chest fluid drainage bottle of the type having a fluid collection chamber connectable to receive fluid sucked from the patient's chest, the improvement consisting of an improved air leak detection system characterized by a fluid filled U-tube downstream of the air space overlying the fluid collecting chamber cooperating therewith to define an air leak detector substantially insensitive to small intermittent variations in upstream pressure while, at the same time, providing an observer with a reliable visual indication of a continuous upstream leak. The improvement also encompasses an anti-splash baffle adjacent the outlet of the U-tube effective to prevent the fluid therein from leaving same and, perhaps, entering the vacuum system upon the application of larger than normal intermittent upstream positive pressure surges.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: October 1, 1985
    Assignee: C. R. Bard, Inc.
    Inventors: Donald P. Elliott, William L. Halseth
  • Patent number: 4041931
    Abstract: This invention relates to split ring markers fabricated in whole or in part from a radiopaque material, usually metal, having the terminal ends thereof and a medial portion formed to define eyelets by means of which said marker can be sutured to the tissue at the site of an anastomosis to provide a visual indication of its location when examined fluoroscopically.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: August 16, 1977
    Inventors: Donald P. Elliott, William L. Halseth
  • Patent number: D267815
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: February 1, 1983
    Assignee: C. R. Bard Inc.
    Inventors: Donald P. Elliott, William L. Halseth, William R. King