Patents by Inventor Robert J. Tannhauser

Robert J. Tannhauser 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).

  • Publication number: 20220362007
    Abstract: A method of making an implantable prosthesis includes applying a gelling enhancer layer over an inner surface of a wall of a silicone shell having anterior and posterior walls surrounding an interior volume. The method includes filling the interior volume of the shell with a silicone gel and curing the silicone gel. The cured silicone gel that is located within a zone that is in the vicinity of the gelling enhancer layer has a higher level of cohesiveness than the cured silicone gel that is located outside the zone. The zone of the silicone gel having the higher level of cohesiveness has a thickness of 2-10 mm. The silicone gel located outside the zone has a first concentration level of a gelling enhancer and the silicone gel located within the zone has a second concentration level of the gelling enhancer that is 5%-300% greater than the first concentration level.
    Type: Application
    Filed: August 2, 2022
    Publication date: November 17, 2022
    Inventors: Joseph H. Contiliano, Krasmira Hristov, Duan Li Ou, Leo B. Kriksunov, Robert J. Tannhauser
  • Patent number: 11471268
    Abstract: An implantable prosthesis includes a silicone shell having an apex, a base, a radius located between the apex and the base, and a dome extending between the apex and the radius. The silicone shell has an outer surface and an inner surface that surrounds an interior volume of the silicone shell. A silicone gel material is disposed within the interior volume of the silicone shell. A gelling enhancer layer containing a gelling enhancer covers the inner surface of the silicone shell. After the silicone gel material has been thermally cured, the silicone gel material that is located within a zone that is in the vicinity of the gelling enhancer layer has a higher level of cohesiveness than the silicone gel material that is located outside the zone. The gelling enhancer contains crosslinker and/or platinum catalyst, such as a Karstedt catalyst.
    Type: Grant
    Filed: April 25, 2020
    Date of Patent: October 18, 2022
    Assignee: Mentor Worldwide LLC
    Inventors: Joseph H. Contiliano, Krasimira Hristov, Duan Li Ou, Leo B. Kriksunov, Robert J. Tannhauser
  • Publication number: 20220323636
    Abstract: The present invention is directed to suturing systems having a needle, an elongated flexible suture having a connecting end attached to a said needle and an opposing free end and at least one elongated external beneficial filament that is attached to said needle or attached to said suture at the connecting end. The beneficial filament has a smaller cross-sectional area and lower mechanical strength than the suture and contains a medicant.
    Type: Application
    Filed: March 30, 2022
    Publication date: October 13, 2022
    Inventors: Howard Scalzo, Leo Kriksunov, Robert J. Tannhauser
  • Patent number: 11452641
    Abstract: A surgical incision drape, comprises a flexible substantially flat areal substrate having an upper side and an opposing tissue-facing side, having a longitudinal axis and a pressure sensitive adhesive disposed on the tissue-facing side; at least one hollow microtubular compartment containing a flowable medical agent, said hollow microtubular compartment positioned to intersect the longitudinal axis and embedded into the substrate or positioned on the substrate.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: September 27, 2022
    Assignee: Ethicon, Inc.
    Inventors: Julian Quintero, Robert J. Tannhauser, Leo B. Kriksunov
  • Publication number: 20220296423
    Abstract: A surgical incision drape, comprises a flexible substantially flat areal substrate having an upper side and an opposing tissue-facing side, having a longitudinal axis and a pressure sensitive adhesive disposed on the tissue-facing side; at least one hollow microtubular compartment containing a flowable medical agent, said hollow microtubular compartment positioned to intersect the longitudinal axis and embedded into the substrate or positioned on the substrate.
    Type: Application
    Filed: June 7, 2022
    Publication date: September 22, 2022
    Applicant: Ethicon, Inc.
    Inventors: Julian Quintero, Robert J. Tannhauser, Leo B. Kriksunov
  • Publication number: 20220296422
    Abstract: A surgical incision drape, comprises a flexible substantially flat areal substrate having an upper side and an opposing tissue-facing side, having a longitudinal axis and a pressure sensitive adhesive disposed on the tissue-facing side; at least one hollow microtubular compartment containing a flowable medical agent, said hollow microtubular compartment positioned to intersect the longitudinal axis and embedded into the substrate or positioned on the substrate.
    Type: Application
    Filed: June 7, 2022
    Publication date: September 22, 2022
    Applicant: Ethicon, Inc.
    Inventors: Julian Quintero, Robert J. Tannhauser, Leo B. Kriksunov
  • Publication number: 20220151608
    Abstract: A reconfigurable suture needle includes an elongated body having a curved proximal section and a curved distal section. The curved proximal section is hollow and includes an elongated conduit extending from a proximal end to a distal end thereof. The curved distal section includes a needle point at a distal end thereof and a hollow post projecting proximally from a proximal end thereof. A suture thread passes through the elongated conduit of the curved proximal section and has a distal end that passes through the hollow post of the curved distal section for being secured to the proximal end of the curved distal section.
    Type: Application
    Filed: January 31, 2022
    Publication date: May 19, 2022
    Inventors: Christophe Vailhe, Robert J. Tannhauser, Leo B. Kriksunov
  • Patent number: 11234691
    Abstract: A reconfigurable suture needle includes an elongated body having a curved proximal section and a curved distal section. A joint interconnects a distal end of the curved proximal section and a proximal end of the curved distal section. The joint enables the curved proximal section and the curved distal section to rotate relative to one another between a first configuration having a higher profile and a second configuration having a lower profile. Each of the curved proximal and distal sections of the elongated body defines about one-quarter of a circle. The elongated body has a semi-circular shape when in the first configuration and a wave shape when in the second configuration. The elongated body is rotated into the smaller profile for passing through a cannula and, after passing through the cannula, rotated back into the higher profile for use as a suturing needle.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: February 1, 2022
    Assignee: Ethicon, Inc.
    Inventors: Christophe Vailhe, Robert J. Tannhauser, Leo B. Kriksunov
  • Publication number: 20220000604
    Abstract: The subject matter disclosed herein relates to an encoded cinching mechanism for use with an implant delivery sleeve. The delivery sleeve includes: an enclosure having a first portion, an orifice, and a throat disposed between the first portion and the orifice; and a cinching mechanism disposed about the throat, in which the cinching mechanism comprises a plurality of demarcations each of which are indicative of a sized opening of the throat.
    Type: Application
    Filed: June 2, 2021
    Publication date: January 6, 2022
    Inventors: Udo Werner GRAF, Robert J. TANNHAUSER, Joseph MATTON, Leo B. KRIKSUNOV
  • Patent number: 11185384
    Abstract: A tissue expander having an integrated drain includes an outer shell having an opening and one or more drainage holes. An injection port is disposed in the opening of the shell and forms a fluid-tight seal with the shell. The injection port includes a needle guard having a needle guard base with a top surface, and a barrier membrane that overlies the top surface of the needle guard base. The barrier membrane defines an inflation chamber located between the top surface of the needle guard base and a bottom surface of the barrier membrane, and a drainage chamber overlying a top surface of the barrier membrane. The tissue expander includes one or more inflation ports that are in fluid communication with the inflation chamber for inflating and deflating the outer shell with a first fluid. A drainage conduit is in fluid communication with and extends between the drainage chamber and the one or more drainage holes for draining a second fluid from outside the shell.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: November 30, 2021
    Assignee: Mentor Worldwide LLC
    Inventors: Marc Feinberg, Leo B. Kriksunov, Robert J. Tannhauser, Michael Hoffman, Jonathan Frenzel
  • Publication number: 20210330448
    Abstract: An implantable prosthesis includes a silicone shell having an apex, a base, a radius located between the apex and the base, and a dome extending between the apex and the radius. The silicone shell has an outer surface and an inner surface that surrounds an interior volume of the silicone shell. A silicone gel material is disposed within the interior volume of the silicone shell. A gelling enhancer layer containing a gelling enhancer covers the inner surface of the silicone shell. After the silicone gel material has been thermally cured, the silicone gel material that is located within a zone that is in the vicinity of the gelling enhancer layer has a higher level of cohesiveness than the silicone gel material that is located outside the zone. The gelling enhancer contains crosslinker and/or platinum catalyst, such as a Karstedt catalyst.
    Type: Application
    Filed: April 25, 2020
    Publication date: October 28, 2021
    Inventors: Joseph H. Contiliano, Krasimira Hristov, Duan Li Ou, Leo B. Kriksunov, Robert J. Tannhauser
  • Publication number: 20210315569
    Abstract: A composite suture needle configured for passing through a smaller cannula used in minimally invasive surgery includes a curved elongated body made of stainless steel. The curved elongated body has a proximal end and a distal end with a pointed tip. The composite suture needle includes a sheath overlying the curved elongated body. The sheath is curved for conforming to the shape of the curved elongated body. The sheath is made of a material that is more elastic than the curved elongated body. The pointed tip of the curved elongated body extends distally beyond the distal end of the sheath. The curved elongated body is made of stainless steel and the sheath is made of a material, such as nitinol, that is more elastic than the elongated body.
    Type: Application
    Filed: April 10, 2020
    Publication date: October 14, 2021
    Inventors: Robert J. Tannhauser, Frank Richard Cichocki, Jr.
  • Publication number: 20210186491
    Abstract: A suture package includes a suture housing having a tray with a suture channel, and at least one suture disposed on the suture housing, whereby the suture includes a suture thread disposed within the suture channel of the tray. The package includes a suture straightening assembly provided on the suture housing. The suture straightening assembly defines a suture dispensing path for removing the suture thread from the suture housing. The suture straightening assembly includes a first suture thread straightening section that is configured to apply a first flexing force within a first plane upon an exterior surface of the suture thread as the suture thread is drawn along the suture dispensing path, and a second suture thread straightening section that is configured to apply a second flexing force within a second plane upon the exterior surface of the suture thread as the suture thread is drawn along the suture dispensing path.
    Type: Application
    Filed: December 24, 2019
    Publication date: June 24, 2021
    Inventor: Robert J. Tannhauser
  • Patent number: 11000280
    Abstract: Novel recessed surgical fastening devices are disclosed. The fastening devices have a compressible member and a fastening element disposed at least partially within the compressible member. The fastening element has at least one tissue engagement member that is extensible through the compressible member to engage tissue when a force is applied to the fastening device.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: May 11, 2021
    Assignee: Ethicon, Inc.
    Inventors: Robert J. Tannhauser, Emil Richard Skula
  • Patent number: 10993759
    Abstract: The present invention relates to surgical instruments and methods for enhancing properties of tissue repaired or joined by surgical staples and, more particularly to surgical instruments and methods designed to enhance the properties of repaired or adjoined tissue at a target surgical site. The present invention further relates to hypothermic linear stapling instruments configured to pre-cool the tissues being joined by staples.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: May 4, 2021
    Assignee: Ethicon, Inc.
    Inventors: Nir I. Nativ, Leo B. Kriksunov, Robert J. Tannhauser, Silvia Chen
  • Patent number: 10993722
    Abstract: The present invention relates to surgical instruments and methods for enhancing properties of tissue repaired or joined by surgical staples and, more particularly to surgical instruments and methods designed to enhance the properties of repaired or adjoined tissue at a target surgical site, especially when sealing an anastomosis between adjacent intestinal sections so as to improve tissue viability, prevent tissue infection, and to prevent leakage. The present invention further relates to an expandable compression device for application to anastomotically joined tubular tissues, comprising: an upper ring-shaped or disk-shaped flange at a distal end of said device connected to a lower ring-shaped inflatable flange at a proximal end of said device via a hollow cylindrical tubular body, with an opening forming an axial passage through said upper flange, lower flange, and tubular body.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: May 4, 2021
    Assignee: Ethicon, Inc.
    Inventors: John Matonick, Robert J. Tannhauser, Leo B. Kriksunov
  • Publication number: 20210077654
    Abstract: The present is directed to systems for ex vivo testing performance of a hemostatic or sealing product attached to an animal organ and fully covering a cored channel in said organ, comprising: a pressure sensor positioned proximate to said hemostatic or sealing product in said cored channel; a monitoring or recording device configured to receive pressure readings from said pressure sensor; and a pressurized fluid source connected to said cored channel and configured to supply said pressurized fluid into said cored channel under constant or variable pressure. The present invention is also directed to methods of use for such systems.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 18, 2021
    Applicant: Ethicon, Inc.
    Inventors: John Matonick, Kevin Hengst, Matthew Pfefferkorn, Robert J. Tannhauser, Leo B. Kriksunov
  • Publication number: 20210045741
    Abstract: A reconfigurable suture needle includes an elongated body having a curved proximal section and a curved distal section. A joint interconnects a distal end of the curved proximal section and a proximal end of the curved distal section. The joint enables the curved proximal section and the curved distal section to rotate relative to one another between a first configuration having a higher profile and a second configuration having a lower profile. Each of the curved proximal and distal sections of the elongated body defines about one-quarter of a circle. The elongated body has a semi-circular shape when in the first configuration and a wave shape when in the second configuration. The elongated body is rotated into the smaller profile for passing through a cannula and, after passing through the cannula, rotated back into the higher profile for use as a suturing needle.
    Type: Application
    Filed: August 13, 2019
    Publication date: February 18, 2021
    Inventors: Christophe Vailhe, Robert J. Tannhauser, Leo B. Kriksunov
  • Patent number: D912251
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: March 2, 2021
    Assignee: Ethicon, Inc.
    Inventors: Christophe Vailhe, Robert J. Tannhauser, Leo B. Kriksunov
  • Patent number: D912819
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: March 9, 2021
    Assignee: Ethicon, Inc.
    Inventors: Christophe Vailhe, Robert J. Tannhauser, Leo B. Kriksunov