Patents by Inventor Leo B. Kriksunov

Leo B. Kriksunov 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: 20220192662
    Abstract: The present invention is directed to a length adaptive surgical suture comprising a monofilament or a braid of a plurality of filaments, the suture having an original length when implanted and a second length that is different from the original length within a first twenty-four (24) hour period of time after implantation to accommodate tissue swelling. The present invention is also directed to configurations and combinations that enable length adaptive results.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 23, 2022
    Inventors: Sasa Andjelic, Marc Wisnudel, Kenneth M. Keilman, Leo B. Kriksunov, Robert J. Tannhasuer
  • 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: 11254061
    Abstract: The present invention relates generally to agents and devices for promoting hemostasis and, more particularly, to bioresorbable hemostatic pads or patches releasably supported on non-resorbable scaffolds for ease of delivery in the field. A sealant and/or hemostat delivery device comprises a resorbable hemostatic pad having a wound facing side and an opposite back side, with a hemostatic and/or wound sealing agent disposed on the wound facing side; a non-resorbable scaffold having an attachment zone on said scaffold; wherein said hemostatic pad is releasably attached with the back side to the attachment zone. The bond between the scaffold and the resorbable hemostatic pad or wound dressing is either (i) severed prior to removal of the scaffold or (ii) is weakened due to the adhesive bonding them together being moisture-deactivated, or (iii) is released by mechanical disentanglement.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: February 22, 2022
    Assignee: Ethicon, Inc.
    Inventors: Jerome B. Riebman, Leo B. Kriksunov
  • Publication number: 20220049057
    Abstract: Provided are rapidly cross-linkable silicone compositions, systems, kits, and methods for filling implanted medical devices in situ, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; and a silicone cross-linker, where the rapidly cross-linkable silicone composition has a viscosity of ?150 cPs for ?1 min. post-preparation and ?300 cPs?5 min. post-preparation, at ambient temperature.
    Type: Application
    Filed: October 29, 2021
    Publication date: February 17, 2022
    Inventors: Duan Li Ou, Leo B. Kriksunov, Lamar Kirchhevel, Clifford Dwyer
  • Publication number: 20220047381
    Abstract: Provided are rapidly cross-linkable silicone foam compositions, kits, and methods for filling implanted medical devices in situ or in vivo, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; a silicone cross-linker; and a gas and/or gas-filled microcapsules, where the rapidly cross-linkable silicone foam composition has a viscosity of ?150 cPs for ?1 min. post-preparation and ?300 cPs?5 min. post-preparation, at ambient temperature.
    Type: Application
    Filed: October 28, 2021
    Publication date: February 17, 2022
    Inventors: Duan Li OU, 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: 20220023491
    Abstract: The present invention relates to a hemostatic absorbable composition, comprising: a flowable plurality of separate aggregates each comprising: a plurality of absorbable carrier particles coated on a surface thereof by a plurality of smaller particles comprising an absorbable supplemental hemostasis-promoting agent. In some embodiments, the absorbable carrier particles comprise gelatin or collagen, and the supplemental hemostasis-promoting agent comprises oxidized cellulose, oxidized regenerated cellulose, carboxylic oxidized cellulose, carboxylic oxidized regenerated cellulose, thrombin, or tranexamic acid.
    Type: Application
    Filed: July 21, 2020
    Publication date: January 27, 2022
    Inventors: Yi-Lan Allen Wang, Jerry Yan, 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
  • Publication number: 20210369276
    Abstract: Novel compositions and systems for closure of wounds are disclosed. The compositions provide devices of improved flexibility and elasticity and are readily applied to wound sites or over wound closure devices. The present invention is also directed to a novel platinum catalyst for use in such compositions. The catalyst provides for rapid curing on topical surfaces such as skin and bonds to such surfaces in about 2-5 minutes.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 2, 2021
    Applicant: Ethicon, Inc.
    Inventors: Duan Li Ou, Robert Rousseau, Leo B. Kriksunov, Julian Quintero
  • 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
  • Patent number: 11160648
    Abstract: Provided are rapidly cross-linkable silicone foam compositions, kits, and methods for filling implanted medical devices in situ or in vivo, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; a silicone cross-linker; and a gas and/or gas-filled microcapsules, where the rapidly cross-linkable silicone foam composition has a viscosity of ?150 cPs for ?1 min. post-preparation and ?300 cPs?5 min. post-preparation, at ambient temperature.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: November 2, 2021
    Assignee: ETHICON, INC.
    Inventors: Duan Li Ou, Leo B. Kriksunov
  • Patent number: 11161937
    Abstract: Provided are rapidly cross-linkable silicone compositions, systems, kits, and methods for filling implanted medical devices in situ, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; and a silicone cross-linker, where the rapidly cross-linkable silicone composition has a viscosity of ?150 cPs for ?1 min. post-preparation and ?300 cPs?5 min. post-preparation, at ambient temperature.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: November 2, 2021
    Assignee: ETHICON, INC.
    Inventors: Duan Li Ou, Leo B. Kriksunov, Lamar Kirchhevel, Clifford Dwyer
  • 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: 20210228767
    Abstract: The present invention is directed to a hemostatic semi-solid paste material comprising a bioabsorbable carrier hemostatic material; and a supplemental hemostatic agent; wherein the paste material has an elongated form extending along a lengthwise axis with an aspect ratio of at least 3; wherein the paste is self-supporting and syringe extrudable; and wherein the supplemental hemostatic agent has a non-homogenous distribution profile across a cross-section taken across the lengthwise axis. In another aspect, the present invention relates to devices for forming and expressing the hemostatic material.
    Type: Application
    Filed: April 13, 2021
    Publication date: July 29, 2021
    Inventors: Yi-Lan Wang, Leo B. Kriksunov
  • Publication number: 20210212676
    Abstract: A device for application onto incisions or wounds with a liquid rapidly polymerizable adhesive for forming skin closure systems, comprising a flat porous mesh elongated along a longitudinal axis and having an upper side and an opposing lower or wound facing side and a central portion in immediate vicinity of the axis; further having a plurality of pores and windows in said mesh, said windows substantially larger than said pores and arranged along said longitudinal axis in said central portion; a crosslinking or polymerization accelerator or initiator disposed in or on said mesh; and a pressure sensitive adhesive disposed on at least a portion of the lower surface of said mesh.
    Type: Application
    Filed: March 31, 2021
    Publication date: July 15, 2021
    Inventors: Julian Quintero, Leo B. Kriksunov, Elena Wolfe
  • Publication number: 20210204933
    Abstract: A reinforcing incision drape for tissue, such as fragile tissue, includes an absorbable surgical mesh having top and bottom major surfaces. The absorbable surgical mesh has a stitching zone and first and second reinforcing zones that bound opposite sides of the stitching zone. The stitching zone is less porous and the first and second reinforcing zones are more porous than the stitching zone. A releasable liner covers the top major surface of the absorbable surgical mesh within the stitching zone of the absorbable surgical mesh. A weaker adhesive, such as a pressure sensitive adhesive, covers the bottom major surface of the surgical mesh within the centrally located stitching zone of the absorbable surgical mesh, and a stronger adhesive, such as cyanoacrylite, covers the first and second reinforcing zones of the absorbable surgical mesh.
    Type: Application
    Filed: February 19, 2021
    Publication date: July 8, 2021
    Inventors: Julian Quintero, Leo B. Kriksunov, Shane A. Lacy, Ibraheem T. Badejo
  • Patent number: 11006937
    Abstract: The present invention is directed to a device for delivering a sealant to a tissue, comprising a sealant compartment, a cooling gas compartment, and a heater, all disposed inside a unified housing; with heater configured for rendering the sealant liquid or semi-liquid or molten and flowable; with sealant compartment configured for expressing the sealant in a flowable form from device via an exit nozzle; with gas compartment configured for expressing a cooling gas via a gas expression port; with exit nozzle and gas expression port co-directed into the same direction.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: May 18, 2021
    Assignee: Ethicon, Inc.
    Inventors: Nir I. Nativ, Thomas C. Weindl, Leo B. Kriksunov
  • Patent number: 11007299
    Abstract: The present invention is directed to a hemostatic semi-solid paste material comprising a bioabsorbable carrier hemostatic material; and a supplemental hemostatic agent; wherein the paste material has an elongated form extending along a lengthwise axis with an aspect ratio of at least 3; wherein the paste is self-supporting and syringe extrudable; and wherein the supplemental hemostatic agent has a non-homogenous distribution profile across a cross-section taken across the lengthwise axis. In another aspect, the present invention relates to devices for forming and expressing the hemostatic material.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: May 18, 2021
    Assignee: Ethicon, Inc.
    Inventors: Yi-Lan Wang, Leo B. Kriksunov
  • 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