Patents Assigned to Espress Tech, Inc.
  • Patent number: 5864017
    Abstract: A clot lysis time determining device for determining the time necessary for fluid to lyse a clot. The device comprises: a body defining a chamber; a fluid receiving inlet port to the body in fluid communication with the chamber, the inlet port permitting fluid to flow into the chamber; a fluid discharging outlet port to the body in fluid communication with the chamber, the outlet port permitting fluid to flow out from the chamber; the inlet port, chamber, and outlet port defining a communicating fluid passageway; a body opening formed in the body along the fluid passageway, the body opening permitting a portion of fluid to flow against a clot supported by clot-supporting porous membrane; and a membrane cover detachably connectable to the body and configured for holding a clot-supporting porous membrane over the body opening.
    Type: Grant
    Filed: January 3, 1997
    Date of Patent: January 26, 1999
    Assignee: Espress Tech, Inc.
    Inventor: Daniel B. Brubaker
  • Patent number: 5612187
    Abstract: A clot lysis time determining device for determining the time necessary for fluid to lyse a clot. The device comprises: a body defining a chamber; a fluid receiving inlet port to the body in fluid communication with the chamber, the inlet port permitting fluid to flow into the chamber; a fluid discharging outlet port to the body in fluid communication with the chamber, the outlet port permitting fluid to flow out from the chamber; the inlet port, chamber, and outlet port defining a communicating fluid passageway; a body opening formed in the body along the fluid passageway, the body opening permitting a portion of fluid to flow against a clot supported by clot-supporting porous membrane; and a membrane cover detachably connectable to the body and configured for holding a clot-supporting porous membrane over the body opening.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: March 18, 1997
    Assignee: Espress Tech, Inc.
    Inventor: Daniel B. Brubaker
  • Patent number: 5432084
    Abstract: A low cost, disposable device for in vitro determination of bleeding time is detachably connectable to the end of a syringe. The device includes a hollow body having inlet and outlet ports and a detachable cover designed to hold a tissue-simulating membrane against the body. Openings are formed in the body and cover to expose the membrane to blood that is passed through the hollow body under pressure from the syringe. Blood flows through a slit in the membrane until it clots. Bleeding time is determined as the time elapsed before the blood stops flowing through the slit. A blood collection reservoir is provided about the body to collect blood discharged from the device to reduce health risks associated with handling blood.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: July 11, 1995
    Assignee: Espress Tech, Inc.
    Inventor: Daniel B. Brubaker