Patents Assigned to Uresil Corporation
  • Publication number: 20020116024
    Abstract: A blood clot filtering system including an anchor which is permanently affixed in a blood vessel, and a filter which is removably attached to the anchor.
    Type: Application
    Filed: February 20, 2001
    Publication date: August 22, 2002
    Applicant: UreSil Corporation
    Inventors: Mark Goldberg, Ron Mallick, Lev Melinyshyn
  • Patent number: 5833666
    Abstract: An assembly for externally securing a catheter at or adjacent to an exit site on a body tissue which includes a resilient member and a detachably removable and adjustable clamp which allow for a gentle bend in the catheter so that kinking is prevented.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: November 10, 1998
    Assignee: Uresil Corporation
    Inventors: Charles R. Davis, David Schucart, Lev Melinyshyn
  • Patent number: 5702468
    Abstract: A carpal bone prothesis comprising a body member made of a biocompatible, medically inert material which is designed to be restrained along at least two independent axes. In one important embodiment, the body member includes at least two independent channels and ingrowth receptive ligaments which extend through the channels and are attached to adjacent carpal bones along the first axis and to the dorsal and palmar capsules along the second axis.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: December 30, 1997
    Assignee: Uresil Corporation
    Inventor: Robert Goldberg
  • Patent number: 5643228
    Abstract: A catheter for introducing fluid into the vascular system includes ports in the catheter's sidewall which are obliquely angled with respect to the longitudinal axis of the catheter. Certain pairs of ports are oriented toward each other, and certain other pairs of ports are oriented away from each other. The arrangement of ports causes fluid to exit the ports in streams which are oriented at oblique angles corresponding to the angles of the port. The obliquely angled streams create advantageous circulation paths proximate to the catheter which generally improve efficacy of the injected fluid associated with the medical application. The catheter may be used for a variety of purposes, including to perform thrombolysis.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: July 1, 1997
    Assignee: Uresil Corporation
    Inventors: David E. Schucart, Edward M. Goldberg, Lev A. Melinyshyn
  • Patent number: 5601580
    Abstract: An improved valve cutter for in-situ incision of valve leaflets which safely, efficiently, and consistently renders venous valves incompetent while minimizing frictional forces on the endothelium of the vessel and preventing inadvertent contact between cutting surfaces and the intima of the vein wall. The valve cutter includes a plurality of proximally directed prongs presenting sharp edges, where the prongs are separated by slots similarly presenting sharp edges to pierce the valve leaflets so that the cutting head is provided with a continuous cutting surface in multiple planes running along the entire forward edge of the cutting head. Fiber optics provided for viewing the valves as they are penetrated by the sharp cutting edges.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: February 11, 1997
    Assignee: Uresil Corporation
    Inventors: Mark C. Goldberg, Alexander Poloyko
  • Patent number: 5389077
    Abstract: An instrument for penetrating into body cavities and potential spaces in preparation for the performance of minimally invasive surgical techniques in which an indicator is provided to assist the surgeon in determining when the instrument is properly placed thereby avoiding injury to vessels and underlying structures in the body cavities and potential spaces.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: February 14, 1995
    Assignee: Uresil Corporation
    Inventors: Lev A. Melinyshyn, Edward M. Goldberg, Alexander Poloyko, David E. Schucart
  • Patent number: 5356386
    Abstract: An apparatus for locating a body cavity having a fluctuating fluid pressure by signaling the fluctuating pressure when the cavity is entered and then transporting fluid either into or out of the cavity.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: October 18, 1994
    Assignee: Uresil Corporation
    Inventors: Edward M. Goldberg, Lev Melinyshyn, Michael Jaron, Jeffrey M. Stupar
  • Patent number: 5352198
    Abstract: A locking catheter system including a flexible catheter having a restraining portion such as a pigtail, malecot rib or J-curve at its distal end and a flexible filament extending therefrom to attaching means at the other end of the catheter. The attaching means comprise a self-sealing sleeve through which the filament passes and an elastomeric sheath which encapsulates the sleeve to restrain the filament.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: October 4, 1994
    Assignee: Uresil Corporation
    Inventors: Barry Goldenberg, Jeffrey T. Williams, David Schucart, Paul H. Hubbard, Lev Melinyshyn
  • Patent number: 5352184
    Abstract: A specimen-receiving receptacle apparatus for use in minimally invasive surgical procedures can be remotely opened and closed from a proximal end of the apparatus, outside of the patient. The apparatus includes a belt having substantial longitudinal rigidity so that the belt can be forced longitudinally into the surgical site to open the specimen-retrieval receptacle from a remote end of the apparatus. The belt can be longitudinally pulled out of the surgical site to close the specimen-retrieval receptacle from outside of the patient. The belt is relatively flexible or easily deformable along an open end of the receptacle without deforming substantially out of the plane of the open receptacle end. This is achieved by aligning the belt with respect to the open end such that a large dimension of the belt is aligned transverse to the plane of the open receptacle end. In a preferred embodiment, the belt is extruded from nylon and has an elliptical cross-sectional shape.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: October 4, 1994
    Assignee: UreSil Corporation
    Inventors: Mark C. Goldberg, Lev Melinyshyn, Alexander Poloyko, Edward M. Goldberg
  • Patent number: 5339801
    Abstract: A surgical retractor having a plurality of widenable and narrowable blades of substantial width, having tissue-contacting surfaces that are not significantly narrower, in a collapsed position, than a guide tube for guiding the retractor blades through a surgical access port to a surgical site during a minimally invasive surgical procedure. Each retractor blade includes a relatively large, preferably planar, tissue-contacting surface for displacing or repositioning internal body tissue, such as an internal organ, for temporary displacement away from the surgical site. After insertion through a surgical access port one or more of the retractor blades can be widened laterally to substantially space distal ends of the retractor blades apart for maximum contact against and over a substantial area of the tissue to be displaced during the surgical procedure.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: August 23, 1994
    Assignee: UreSil Corporation
    Inventors: Alexander Poloyko, Mark C. Goldberg, Edward M. Goldberg, Lev A. Melinyshyn, David E. Schucart
  • Patent number: 5152777
    Abstract: An apparatus and method for providing protection from emboli and prevention of occlusion in blood vessels entailing the use of a temporarily emplaced, complaint and conformable trap which may be removed when medically necessary and which will not damage the architecture of the blood vessel.
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: October 6, 1992
    Assignee: Uresil Corporation
    Inventors: Edward M. Goldberg, Lev Melinyshyn, Alexander Poloyko
  • Patent number: 5102404
    Abstract: A truly closed drainage apparatus for suctioning, storing and administering fluid from body and tissue cavities including draining means for suctioning and receiving fluid, a reservoir for siphoning and storing excess fluids, a small pore hydrophobic filter for venting air without retrograde introduction of microorganisms, and means for applying pressure to the reservoir to administer the fluid contained therein.
    Type: Grant
    Filed: October 2, 1990
    Date of Patent: April 7, 1992
    Assignee: Uresil Corporation
    Inventors: Edward M. Goldberg, Lev Melinyshyn
  • Patent number: 5019059
    Abstract: A truly closed drainage apparatus for suctioning, storing and administering fluid from body and tissue cavities including draining means for suctioning and receiving fluid, a reservoir for siphoning and storing excess fluids, a small pore hydrophobic filter for venting air without retrograde introduction of microorganisms, and means for applying pressure to the reservoir to administer the fluid contained therein.
    Type: Grant
    Filed: August 2, 1988
    Date of Patent: May 28, 1991
    Assignee: Uresil Corporation
    Inventors: Edward M. Goldberg, Lev Melinyshyn
  • Patent number: 4966197
    Abstract: A one-way valve comprising flat resilient members in face-to-face relationship which are bonded upon two generally parallel tracks defining a passageway therebetween, where the tracks have a tortuous profile along their inner edges.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: October 30, 1990
    Assignee: Uresil Corporation
    Inventors: Michael Jaron, Lev Melinyshyn
  • Patent number: 4949756
    Abstract: A one-way valve comprising flat resilient members in face-to-face relationship which are bonded upon two generally parallel tracks defining a passageway therebetween, where the tracks have a tortuous profile along their inner edges, and optionally, where the passageway is creased and/or wetted.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: August 21, 1990
    Assignee: Uresil Corporation
    Inventors: Lev Melinyshyn, Edward M. Goldberg
  • Patent number: 4944724
    Abstract: An apparatus for locating a body cavity having a fluctuating fluid pressure by signaling the fluctuating pressure when the cavity is entered and then transporting fluid either into or out of the cavity.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: July 31, 1990
    Assignee: Uresil Corporation
    Inventors: Edward M. Goldberg, Lev Melinyshyn, Michael Jaron, Jeffrey M. Stupar
  • Patent number: 4925452
    Abstract: A multiple conduit flexible drainage device in which the adjacent conduits are joined by a plurality of membranes and may be parted from their proximal ends, reliably and without damage to the conduits.
    Type: Grant
    Filed: March 8, 1988
    Date of Patent: May 15, 1990
    Assignee: Uresil Corporation
    Inventors: Lev Melinyshyn, Edward M. Goldberg
  • Patent number: D312132
    Type: Grant
    Filed: September 16, 1987
    Date of Patent: November 13, 1990
    Assignee: Uresil Corporation
    Inventor: Michael Jaron
  • Patent number: D344331
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: February 15, 1994
    Assignee: Uresil Corporation
    Inventors: Alexander Poloyko, Jeffrey T. Williams, Paul H. Hubbard, Lev Melinyshyn