Patents by Inventor Volker Stirnal

Volker Stirnal 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).

  • Vacuum mixing device for bone cement and method for mixing bone cement in said device
    Patent number: 9999459
    Abstract: The application relates to a vacuum mixing device for bone cement, where the monomer is pressed into a mixing container due to the surrounding vacuum and a gas volume present in the monomer container.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: June 19, 2018
    Assignee: Stryker European Holdings I, LLC
    Inventors: Oliver Bielenstein, Christoph Sattig, Stefan Deusser, Volker Stirnal
  • VACUUM MIXING DEVICE FOR BONE CEMENT AND METHOD FOR MIXING BONE CEMENT IN SAID DEVICE
    Publication number: 20160045242
    Abstract: The application relates to a vacuum mixing device for bone cement, where the monomer is pressed into a mixing container due to the surrounding vacuum and a gas volume present in the monomer container.
    Type: Application
    Filed: October 12, 2015
    Publication date: February 18, 2016
    Inventors: Oliver Bielenstein, Christoph Sattig, Stefan Deusser, Volker Stirnal
  • Vacuum mixing device for bone cement and method for mixing bone cement in said device
    Patent number: 9186635
    Abstract: The application relates to a vacuum mixing device (1) for bone cement, where the monomer is pressed into a mixing container (2) due to the surrounding vacuum and a gas volume present in the monomer container (10).
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: November 17, 2015
    Assignee: Stryker Ireland Limited
    Inventors: Oliver Bielenstein, Christoph Sattig, Stefan Deusser, Volker Stirnal
  • Method for producing a cross-linked polyacrylate polymer implant material
    Patent number: 8647672
    Abstract: The invention relates to an implant material comprising a polymer which is partially cross-linked by means of a metal acrylate salt.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: February 11, 2014
    Assignee: AAP Biomaterials GmbH
    Inventors: Oliver Bielenstein, Stefan Deusser, Christoph Sattig, Volker Stirnal
  • IMPLANT MATERIAL AND A METHOD FOR PRODUCING SAME
    Publication number: 20120302648
    Abstract: The invention relates to an implant material comprising a polymer which is partially cross-linked by means of a metal salt.
    Type: Application
    Filed: September 20, 2010
    Publication date: November 29, 2012
    Applicant: AAP BIOMATERIALS GMBH
    Inventors: Oliver Bielenstein, Stefan Deusser, Christoph Sattig, Volker Stirnal
  • VACUUM MIXING DEVICE FOR BONE CEMENT AND METHOD FOR MIXING BONE CEMENT IN SAID DEVICE
    Publication number: 20120065642
    Abstract: The application relates to a vacuum mixing device (1) for bone cement, where the monomer is pressed into a mixing container (2) due to the surrounding vacuum and a gas volume present in the monomer container (10).
    Type: Application
    Filed: March 17, 2010
    Publication date: March 15, 2012
    Inventors: Oliver Bielenstein, Christoph Sattic, Stefan Deusser, Volker Stirnal
  • Mixing and application device
    Patent number: 7959349
    Abstract: A device for mixing and applying mixed material, in particular medical cement, comprising a cartridge cylinder, a mixer, a plunger for closing the mixed material cavity and for forcing out the mixed material from the cartridge cylinder, and a latching ring having radially outer and inner hook formations. First counter-hooks on the cartridge cylinder interact with the radially outer hook formations on the latching ring. The plunger has second counter-hooks which interact with the inner hook formation on the latching ring in order to hold the plunger during the mixing, and release the plunger for being displaced at the beginning of the application procedure.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: June 14, 2011
    Assignee: aap Biomaterials GmbH
    Inventors: Christoph Sattig, Volker Stirnal
  • Mixing and application device
    Publication number: 20080304355
    Abstract: A device for mixing and applying mixed material, in particular medical cement, comprising a cartridge cylinder (1), a mixer (2), a plunger (3) for closing the mixed material cavity (10) and for forcing out the mixed material from the cartridge cylinder and a locking ring (4) with radially outer and inner locking means (41, 42). The cartridge cylinder (1) has counter-hooks (14) as first counter-locking means, which interact with the radially outer locking means (41) of the locking ring (4). The plunger (3) has locking hooks (37) as second counter-locking means (37), which interact with the inner locking means (42) of the locking ring (4), in order to hold the plunger (3) during the mixing and release the plunger (3) for displacement at the beginning of the application operation.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 11, 2008
    Applicant: AAP BIOMATERIALS GMBH & CO. KG
    Inventors: Christoph Sattig, Volker Stirnal