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: 20190134258
    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: November 8, 2017
    Publication date: May 9, 2019
    Inventors: Yi-Lan Wang, Leo B. Kriksunov
  • Publication number: 20190117220
    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 to improve tissue viability under hypoxia conditions, prevent tissue inflammation, and to prevent leakage. The present invention further relates to hypothermic circular stapling instruments configured to pre-cool the tissues being joined by staples.
    Type: Application
    Filed: October 20, 2017
    Publication date: April 25, 2019
    Inventors: Nir I. Nativ, Leo B. Kriksunov, Robert J. Tannhauser
  • Publication number: 20190117287
    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: Application
    Filed: October 20, 2017
    Publication date: April 25, 2019
    Inventors: Nir I. Nativ, Leo B. Kriksunov, Robert J. Tannhauser
  • Patent number: 10265091
    Abstract: The present invention is directed to surgical staplers stapling and resecting tissue comprising a surgical buttress at least partially disposed on a tissue facing surface of at least one of the cartridge or the anvil, said buttress having width substantially larger than width of said tissue facing surfaces; said buttress comprising a first portion positioned over the deployable staples or over the staple forming pockets, and at least one flap portion not positioned over the deployable staples or over the staple forming pockets; said flap portion folded or rolled on itself and configured to be unfurlable and wrappable about the resected tissue. The present invention is also directed to methods of use of such stapler assembly devices.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: April 23, 2019
    Assignee: Ethicon LLC
    Inventors: Nir I. Nativ, Sridevi Dhanaraj, Leo B. Kriksunov, Charles J. Scheib
  • Publication number: 20190076140
    Abstract: A method of reinforcing subcutaneous fragile tissue includes obtaining an absorbable surgical mesh having top and bottom major surfaces, the absorbable surgical mesh including a stitching zone and first and second reinforcing zones that bound opposite sides of the stitching zone. The method includes making an incision in a patient's skin for exposing subcutaneous fragile tissue, using one or more absorbable adhesives for adhering the bottom major surface of the absorbable surgical mesh to the subcutaneous fragile tissue, creating an incision through the stitching zone of the absorbable surgical mesh and into the subcutaneous fragile tissue, performing a surgical procedure through the incision, and passing an absorbable suture through the stitching zone of the absorbable surgical mesh and the fragile tissue for closing the incision.
    Type: Application
    Filed: September 13, 2017
    Publication date: March 14, 2019
    Inventors: Julian Quintero, Leo B. Kriksunov, Shane A. Lacy, Ibraheem T. Badejo
  • Publication number: 20190046199
    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: Application
    Filed: October 17, 2018
    Publication date: February 14, 2019
    Inventors: John Matonick, Robert J. Tannhauser, Leo B, Kriksunov
  • Patent number: 10183132
    Abstract: The present invention is directed to an integrated delivery device that is operable with one hand and provides co-delivery of a liquid medicant and a powder medicant onto a tissue or wound from a liquid medicant expression subunit and a powder medicant expression subunit. Each expression subunit having an actuator for the liquid medicant and the powder medicant contained therein that are positioned in close proximity to one other at a proximate end of said expression subunits and delivery cannulas for each of said expression subunits that positioned in close proximity to one other at a distal end of said expression subunits. The present invention also relates to method for using such integrated devices.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: January 22, 2019
    Assignee: Ethicon LLC
    Inventors: Yi-Lan Wang, Leo B. Kriksunov
  • Publication number: 20180368824
    Abstract: The present invention relates devices capable of continuous and simultaneous expression of components of a multi-part biomedical composition with variable mixing ratios. The device has at least two syringes that contain the inter-reactive components of the multi-part biomedical composition. At least the barrel of the first syringe has a first retention compartment having a cross-sectional area dimension that is larger than the cross-sectional area of a second retention compartment. The first piston has a cross-sectional dimension that matches the inside cross-sectional dimension of the small dimensioned retention compartment, while a ring-shaped gasket is located within the large dimensioned retention compartment and has an outside cross-sectional dimension that matches an interior dimension of the large dimension retention compartment.
    Type: Application
    Filed: August 21, 2018
    Publication date: December 27, 2018
    Applicant: Ethicon, Inc.
    Inventors: Dennis D. Jamiolkowski, An-Min Jason Sung, Leo B. Kriksunov
  • Patent number: 10130368
    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: April 1, 2016
    Date of Patent: November 20, 2018
    Assignee: Ethicon, Inc.
    Inventors: John Matonick, Robert J. Tannhauser, Leo B. Kriksunov
  • Publication number: 20180303967
    Abstract: A device for application onto wounds with a liquid rapidly polymerizable adhesive for forming skin closure systems, comprising a thin flexible flat porous tape, preferably a mesh, elongated along a longitudinal axis and having a lower side or wound-facing side and an opposing upper side, a periphery, and central portion in immediate vicinity of the axis; said tape coated or impregnated with an initiator or accelerator of polymerization; said tape having a plurality of elongated traces of soluble pressure sensitive adhesive (PSA) disposed on the wound-facing side; said traces covering from about 3% to about 50% of area of said tape and extending from the periphery to the central portion of said tape.
    Type: Application
    Filed: April 25, 2017
    Publication date: October 25, 2018
    Inventors: Julian Quintero, Leo B. Kriksunov
  • Patent number: 10085729
    Abstract: The present invention relates devices capable of continuous and simultaneous expression of components of a multi-part biomedical composition with variable mixing ratios. The device has at least two syringes that contain the inter-reactive components of the multi-part biomedical composition. At least the barrel of the first syringe has a first retention compartment having a cross-sectional area dimension that is larger than the cross-sectional area of a second retention compartment. The first piston has a cross-sectional dimension that matches the inside cross-sectional dimension of the small dimensioned retention compartment, while a ring-shaped gasket is located within the large dimensioned retention compartment and has an outside cross-sectional dimension that matches an interior dimension of the large dimension retention compartment.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: October 2, 2018
    Assignee: Ethicon, Inc.
    Inventors: Dennis D. Jamiolkowski, An-Min Jason Sung, Leo B. Kriksunov
  • Publication number: 20180271505
    Abstract: A device for joining two layers of tissue, comprises a substantially flat and flexible scaffold having an upper surface, a lower surface and sidewalls; a plurality of first passages penetrating said scaffold from said upper surface to said lower surface; a plurality of second passages penetrating said scaffold from said upper surface to said lower surface; a substantially flat and flexible top cover releasably attached to said upper surface and covering all of said upper surface; said top cover having a plurality of top cover passages aligned with said first plurality of passages.
    Type: Application
    Filed: March 23, 2017
    Publication date: September 27, 2018
    Inventors: Julian Quintero, Leo B. Kriksunov, Robert J. Tannhauser
  • Publication number: 20180271712
    Abstract: A system or device for skin closure comprises an elastic flat flexible tape elongated along a longitudinal axis and having a lower side and an opposing upper side, said tape having a pressure sensitive adhesive on at least a portion of the lower side, said tape having a plurality of openings arranged side-by-side with spaces between said openings oriented across the longitudinal axis.
    Type: Application
    Filed: March 23, 2017
    Publication date: September 27, 2018
    Inventors: Julian Quintero, Kevin Weadock, Leo B. Kriksunov, Robert J. Tannhauser
  • Publication number: 20180221021
    Abstract: An implantable medical device and method of making it, including a collection of filaments, including a plurality of first variety filaments made of a first polymeric material and at least one second variety filament, and optionally at least one third variety of filament, wherein the second variety filament is coated or impregnated with a first biomedically useful agent and, if present, the third variety of filament is coated or impregnated with a second biomedically useful agent different from the first biomedically useful agent.
    Type: Application
    Filed: February 8, 2017
    Publication date: August 9, 2018
    Inventors: Howard Scalzo, Leo B. Kriksunov, Robert J. Tannhauser, Emil Richard Skula
  • Publication number: 20180193010
    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: Application
    Filed: January 6, 2017
    Publication date: July 12, 2018
    Inventors: Jerome B. Riebman, Leo B. Kriksunov
  • Publication number: 20180186938
    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: December 30, 2016
    Publication date: July 5, 2018
    Inventors: Duan Li Ou, Leo B. Kriksunov, Lamar Kirchhevel, Clifford Dwyer
  • Publication number: 20180185137
    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: December 30, 2016
    Publication date: July 5, 2018
    Inventors: Duan Li Ou, Leo B. Kriksunov
  • Patent number: 9999759
    Abstract: The present invention is directed to linear surgical staplers for joining tissue layers comprising a disposable cartridge installed in a first jaw connected to an opposing second jaw, said cartridge containing a plurality of deployable staples in arrays separated by a tissue resection slot and a plurality of resorbable medicant-releasing microneedles, said microneedles comprising elongated rods having a sharp tissue-penetrating distal end and a proximal end; said microneedles are releasably disposed on or within a tissue-facing surface of the cartridge, wherein the proximal end of the microneedles is supported on the cartridge. The present invention is also directed to methods of use of such stapler assembly devices.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: June 19, 2018
    Assignee: Ethicon, Inc.
    Inventors: John P. Matonick, Robert J. Tannhauser, Leo B. Kriksunov
  • Patent number: 9962284
    Abstract: The present invention is directed to a reusable pain relieving treatment device, such as a belt, that comprises one or more conductive members that extend from an inner surface of the device and are capable of transferring heat, cold or vibrations from disposable or reusable packs.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: May 8, 2018
    Assignee: Johnson & Johnson Consumer Inc.
    Inventors: Ronni L. Robinson, Harry S. Sowden, Leo B. Kriksunov
  • Publication number: 20180085124
    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 circular stapling instruments and elongated tubular hollow sleeves deployed from such stapling instruments and establishing an isolated enclosure around the stapled and resected tissues at the anastomotic joint.
    Type: Application
    Filed: September 27, 2016
    Publication date: March 29, 2018
    Inventors: Nir I. Nativ, Silvia Chen, John P. Matonick, Leo B. Kriksunov, Robert J. Tannhauser