Patents Assigned to DECELL TECHNOLOGIES INC.
  • Patent number: 11027048
    Abstract: A method for producing sterile, decellurized bioprosthetic tissue comprising: (a) contacting a human tissue with a hypotonic solution to produce a lysed tissue, (b) contacting the lysed tissue with a first surfactant to produce a surfactant-treated tissue, (c) contacting the surfactant-treated tissue with a nuclease enzyme solution to produce an enzyme-treated tissue, (d) contacting the enzyme-treated tissue with a cleaning solution comprising a second surfactant, a chaotropic agent or a mixture thereof to produce a decellurized tissue and (e) contacting the decellurized tissue with a bioburden reducing agent to produce the final bioprosthetic tissue. Kits to be used in conjunction with said method, as well as, the bioprosthetic tissue produced via said method are also provided.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: June 8, 2021
    Assignee: DECELL TECHNOLOGIES INC.
    Inventor: Paul Frank Gratzer
  • Patent number: 9566369
    Abstract: A method for producing sterile, decellurized bioprosthetic tissue comprising: (a) contacting a human tissue with a hypotonic solution to produce a lysed tissue, (b) contacting the lysed tissue with a first surfactant to produce a surfactant-treated tissue, (c) contacting the surfactant-treated tissue with a nuclease enzyme solution to produce an enzyme-treated tissue, (d) contacting the enzyme-treated tissue with a cleaning solution comprising a second surfactant, a chaotropic agent or a mixture thereof to produce a decellurized tissue and (e) contacting the decellurized tissue with a bioburden reducing agent to produce the final bioprosthetic tissue. Kits to be used in conjunction with said method, as well as, the bioprosthetic tissue produced via said method are also provided.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: February 14, 2017
    Assignee: DECELL TECHNOLOGIES INC.
    Inventor: Paul F. Gratzer
  • Publication number: 20160367726
    Abstract: A method for producing sterile, decellurized bioprosthetic tissue comprising: (a) contacting a human tissue with a hypotonic solution to produce a lysed tissue, (b) contacting the lysed tissue with a first surfactant to produce a surfactant-treated tissue, (c) contacting the surfactant-treated tissue with a nuclease enzyme solution to produce an enzyme-treated tissue, (d) contacting the enzyme-treated tissue with a cleaning solution comprising a second surfactant, a chaotropic agent or a mixture thereof to produce a decellurized tissue and (e) contacting the decellurized tissue with a bioburden reducing agent to produce the final bioprosthetic tissue. Kits to be used in conjunction with said method, as well as, the bioprosthetic tissue produced via said method are also provided.
    Type: Application
    Filed: September 1, 2016
    Publication date: December 22, 2016
    Applicant: DeCell Technologies Inc.
    Inventor: Paul Frank Gratzer
  • Publication number: 20130028981
    Abstract: A method for producing sterile, decellurized bioprosthetic tissue comprising: (a) contacting a human tissue with a hypotonic solution to produce a lysed tissue, (b) contacting the lysed tissue with a first surfactant to produce a surfactant-treated tissue, (c) contacting the surfactant-treated tissue with a nuclease enzyme solution to produce an enzyme-treated tissue, (d) contacting the enzyme-treated tissue with a cleaning solution comprising a second surfactant, a chaotropic agent or a mixture thereof to produce a decellurized tissue and (e) contacting the decellurized tissue with a bioburden reducing agent to produce the final bioprosthetic tissue. Kits to be used in conjunction with said method, as well as, the bioprosthetic tissue produced via said method are also provided.
    Type: Application
    Filed: February 25, 2011
    Publication date: January 31, 2013
    Applicant: DECELL TECHNOLOGIES INC.
    Inventor: Paul F. Gratzer