Patents by Inventor Wes Prais

Wes Prais 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: 5334144
    Abstract: A single use needleless hypodermic injector includes an elongate housing with a proximal end, a distal end, an axis and a hollow bore therethrough. The housing has a reservoir at the distal end with a generally cylindrical chamber for containing an injectable liquid. The chamber has a axis aligned with the housing longitudinal axis. The chamber has a first open end adjacent the housing with a resilient stopper mounted therein. The reservoir has a distal second end with an orifice in fluid communication with the chamber. The resilient stopper seals the chamber and ejects the liquid from the chamber, forming a stream at the orifice when the stopper is moved distally in the chamber. The injector has an piston mounted for axial movement within the housing bore and elements to axially bias the piston distally within the bore. The piston has an armed position wherein it is positioned proximally within the bore.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: August 2, 1994
    Assignee: Becton, Dickinson and Company
    Inventors: Paul G. Alchas, A. Wes Prais
  • Patent number: 5312380
    Abstract: The invention is an endothelial cell procurement and deposition kit for collecting fat from a patient, processing said fat to produce an endothelial cell deposition product, and depositing said product on the surface of a graft, all under sterile conditions established and maintained within the components of said kit comprised of: fat collection means for collecting subcutaneous fat from a patient; digestion means connectable to said fat collection means to maintain sterility during reception of said fat and for retaining said fat under sterile conditions during rinsing and digestion to produce a digested product; endothelial cell isolation means connectable to said digestion means for maintaining sterile conditions during reception of said digested product and for separating and isolating microvessel endothelial cells from said digested product to produce an endothelial cell product; cell deposition means connectable to said isolation means for maintaining sterile conditions during reception of said endothel
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: May 17, 1994
    Assignees: Thomas Jefferson University, Becton Dickinson and Company
    Inventors: Paul G. Alchas, Frank A. Augello, Christopher J. Brooks, Tony A. Cutshall, Joseph A. DiPisa, Jr., Stuart K. Williams, Jonathan B. Gabel, Paul J. Mulhauser, Wes Prais, Bruce E. Jarrell, Deborah G. Rose
  • Patent number: 5035708
    Abstract: The invention is an endothelial cell procurement and deposition kit for collecting fat from a patient, processing said fat to produce an endothelial cell deposition product, and depositing said product on the surface of a graft, all under sterile conditions established and maintained within the components of said kit comprised of: fat collection means for collecting subcutaneous fat from a patient; digestion means connectable to said fat collection means to maintain sterility during reception of said fat and for retaining said fat under sterile conditions during rinsing and digestion to produce a digested product; endothelial cell isolation means connectable to said digestion means for maintaining sterile conditions during reception of said digested product and for separating and isolating microvessel endothelial cells from said digested product to produce an endothelial cell product; cell deposition means connectable to said isolation means for maintaining sterile conditions during reception of said endothel
    Type: Grant
    Filed: May 24, 1989
    Date of Patent: July 30, 1991
    Assignees: Thomas Jefferson University, Becton
    Inventors: Paul G. Alchas, Frank A. Augello, Christopher J. Brooks, Tony A. Cutshall, Joseph A. DiPisa, Jr., Stuart K. Williams, Jonathan B. Gabel, Paul J. Mulhauser, Wes Prais, Bruce E. Jarrell, Deborah G. Rose