Patents by Inventor Krasimira Hristov

Krasimira Hristov 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).

  • 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: 20220241066
    Abstract: An implant-delivery sleeve may comprise an enclosure having at least one opening and at least one vent conduit. The vent conduit may extend along a surface of the enclosure to assist in removing fluids (e.g., blood and air) from the tissue pocket to facilitate implantation of the implant.
    Type: Application
    Filed: April 21, 2022
    Publication date: August 4, 2022
    Inventors: Krasimira HRISTOV, Clifford DWYER, James FLEMING, Robert TANNHAUSER, Leo KRIKSUNOV
  • Patent number: 11311369
    Abstract: An implant-delivery sleeve may comprise an enclosure having at least one opening and at least one vent conduit. The vent conduit may extend along a surface of the enclosure to assist in removing fluids (e.g., blood and air) from the tissue pocket to facilitate implantation of the implant.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: April 26, 2022
    Assignee: MENTOR WORLDWIDE LLC
    Inventors: Krasimira Hristov, Clifford Dwyer, James Fleming, Robert Tannhauser, Leo Kriksunov
  • 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
  • Patent number: 10751162
    Abstract: A mammary implant and method of making are provided herein. The implant includes an outer shell configured to retain fluid therein, an injection element coupled to the outer shell and adapted to receive therethrough an injection device for injecting fluid into the outer shell, and an injection marker zone made of a material having ultrasonically detectable markers incorporated therein. The markers are a plurality of microcavities that are located relative to the injection element so that, when ultrasonically detected, such detection indicates a location of the injection element.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: August 25, 2020
    Assignee: MENTOR WORLDWIDE LLC
    Inventors: Krasimira Hristov, Leo B. Kriksunov, Robert J. Tannhauser
  • Patent number: 10617516
    Abstract: An expandable mammary implant including a shell having an anterior face and a posterior face. The anterior has an upper pole portion and a lower pole portion meeting at an apex, and an injection zone for receiving fluid therethrough to inflate the implant. A reinforcement material is coupled to the shell in a reinforcement zone. The reinforcement material is coupled to the shell so as to at least coincide with the upper pole portion and a peripheral rim portion that extends from the posterior face upwardly into said anterior face by a predetermined distance.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: April 14, 2020
    Assignee: MENTOR WORLDWIDE LLC
    Inventors: Luis Alberto Davila, Anita M. Falcon, Krasimira Hristov, Leo B. Kriksunov, Robert J. Tannhauser
  • Publication number: 20190274818
    Abstract: An implant delivery sleeve is disclosed. The sleeve may comprise a first tube including a first segment, a second segment, and a third segment. The first segment may have a first stiffness, the second segment may have a second stiffness, and the third segment may have a third stiffness. The third stiffness may be greater than the second stiffness and the second stiffness may be greater than the first stiffness. The implant-delivery sleeve may be used to deliver a breast implant to a subject. The implant may be deformed within the sleeve, to advance it within the sleeve and extrude it from the distal end of the sleeve.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 12, 2019
    Inventors: Krasimira HRISTOV, Marc FEINBERG, Leo KRIKSUNOV, Robert TANNHAUSER
  • Publication number: 20190274817
    Abstract: An implant-delivery sleeve may comprise an enclosure having at least one opening and at least one vent conduit. The vent conduit may extend along a surface of the enclosure to assist in removing fluids (e.g., blood and air) from the tissue pocket to facilitate implantation of the implant.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 12, 2019
    Inventors: Krasimira HRISTOV, Clifford DWYER, James FLEMING, Robert TANNHAUSER, Leo KRIKSUNOV
  • Patent number: 10149753
    Abstract: Novel bioabsorbable, nasal spreader graft implant devices are disclosed. The devices are useful in rhinoplasty and nasal reconstruction surgical procedures, as well as other surgical procedures. The devices have biodegradable core plates and biodegradable spreader plates or tissue ingrowth plates. The plates may have tissue ingrowth properties.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: December 11, 2018
    Assignee: Ethicon, Inc.
    Inventors: G. Gavin Chen, Krasimira Hristov, Jianxin Guo, Jianguo Jack Zhou, James A. Matrunich
  • Patent number: 9949823
    Abstract: Novel bioabsorbable, universal kits used to form nasal implants are disclosed. The implants are useful in rhinoplasty and nasal reconstruction surgical procedures. The kit devices have a universal configuration and can be converted by the surgeon in the field into one or more individual nasal implant devices having different configurations and applications. The kits may have outlines of nasal implants thereon.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: April 24, 2018
    Assignee: Ethicon, Inc
    Inventors: Krasimira Hristov, Gaoyuan Gavin Chen, Mark T. Mooney, James A. Matrunich, Jianxin Guo, Emil Richard Skula
  • Publication number: 20170319328
    Abstract: An expandable mammary implant including a shell having an anterior face and a posterior face. The anterior has an upper pole portion and a lower pole portion meeting at an apex, and an injection zone for receiving fluid therethrough to inflate the implant. A reinforcement material is coupled to the shell in a reinforcement zone. The reinforcement material is coupled to the shell so as to at least coincide with the upper pole portion and a peripheral rim portion that extends from the posterior face upwardly into said anterior face by a predetermined distance.
    Type: Application
    Filed: June 27, 2017
    Publication date: November 9, 2017
    Inventors: Luis Alberto Davila, Anita M. Falcon, Krasimira Hristov, Leo B. Kriksunov, Robert J. Tannhauser
  • Patent number: 9700405
    Abstract: An expandable mammary implant including a shell having an anterior face and a posterior face. The anterior has an upper pole portion and a lower pole portion meeting at an apex, and an injection zone for receiving fluid therethrough to inflate the implant. A reinforcement material is coupled to the shell in a reinforcement zone. The reinforcement material is coupled to the shell so as to at least coincide with the upper pole portion and a peripheral rim portion that extends from the posterior face upwardly into said anterior face by a predetermined distance.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: July 11, 2017
    Assignee: MENTOR WORLDWIDE LLC
    Inventors: Luis Alberto Davila, Anita M. Falcon, Krasimira Hristov, Leo B. Kriksunov, Robert J. Tannhauser
  • Publication number: 20170189165
    Abstract: A mammary implant and method of making are provided herein. The implant includes an outer shell configured to retain fluid therein, an injection element coupled to the outer shell and adapted to receive therethrough an injection device for injecting fluid into the outer shell, and an injection marker zone made of a material having ultrasonically detectable markers incorporated therein. The markers are a plurality of microcavities that are located relative to the injection element so that, when ultrasonically detected, such detection indicates a location of the injection element.
    Type: Application
    Filed: March 22, 2017
    Publication date: July 6, 2017
    Applicant: MENTOR WORLDWIDE LLC
    Inventors: Krasimira Hristov, Leo B. Kriksunov, Robert J. Tannhauser
  • Patent number: 9636210
    Abstract: A mammary implant and method of making are provided herein. The implant includes an outer shell configured to retain fluid therein, an injection element coupled to the outer shell and adapted to receive therethrough an injection device for injecting fluid into the outer shell, and an injection marker zone made of a material having ultrasonically detectable markers incorporated therein. The markers are a plurality of microcavities that are located relative to the injection element so that, when ultrasonically detected, such detection indicates a location of the injection element.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 2, 2017
    Assignee: Mentor Worldwide LLC
    Inventors: Krasimira Hristov, Leo B. Kriksunov, Robert J. Tannhauser
  • Publication number: 20170079777
    Abstract: Novel bioabsorbable, nasal spreader graft implant devices are disclosed. The devices are useful in rhinoplasty and nasal reconstruction surgical procedures, as well as other surgical procedures. The devices have biodegradable core plates and biodegradable spreader plates or tissue ingrowth plates. The plates may have tissue ingrowth properties.
    Type: Application
    Filed: December 2, 2016
    Publication date: March 23, 2017
    Inventors: G. Gavin Chen, Krasimira Hristov, Jianxin Guo, Jianguo Jack Zhou, James A. Matrunich
  • Publication number: 20170079776
    Abstract: Novel bioabsorbable, nasal spreader graft implant devices are disclosed. The devices are useful to rhinoplasty and nasal reconstruction surgical procedures, as well as other surgical procedures. The devices have biodegradable core plates and biodegradable spreader plates or tissue ingrowth plates. The plates may have tissue ingrowth properties.
    Type: Application
    Filed: December 2, 2016
    Publication date: March 23, 2017
    Inventors: G. Gavin Chen, Krasimira Hristov, Jianxin Guo, Jianguo Jack Zhou, James A. Matrunich
  • Publication number: 20170079775
    Abstract: Novel bioabsorbable, nasal spreader graft implant devices are disclosed. The devices are useful in rhinoplasty and nasal reconstruction surgical procedures, as well as other surgical procedures. The devices have biodegradable core plates and biodegradable spreader plates or tissue ingrowth plates. The plates may have tissue ingrowth properties.
    Type: Application
    Filed: December 2, 2016
    Publication date: March 23, 2017
    Inventors: G. Gavin Chen, Krasimira Hristov, Jianxin Guo, Jianguo Jack Zhou, James A. Matrunich
  • Patent number: 9510940
    Abstract: Novel bioabsorbable, nasal spreader graft implant devices are disclosed. The devices are useful in rhinoplasty and nasal reconstruction surgical procedures, as well as other surgical procedures. The devices have biodegradable core plates and biodegradable spreader plates or tissue ingrowth plates. The plates may have tissue ingrowth properties.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: December 6, 2016
    Assignee: Ethicon, Inc.
    Inventors: G. Gavin Chen, Krasimira Hristov, Jianxin Guo, James A. Matrunich, Jianguo Jack Zhou
  • Patent number: 9463087
    Abstract: An expandable mammary tissue implant including a shell having an anterior face and a posterior face, the anterior face having an upper pole portion and a lower pole portion meeting at an apex, and an injection zone for receiving fluid therethrough to inflate the implant. The implant further includes a vertical tether member having first and second ends and a central region therebetween having an aperture therethrough. The central region is coupled to the anterior face of the implant at a location such that the injection zone is positioned within the aperture in the central region. The first and second ends of the vertical tether member are coupled to the posterior face of the implant.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: October 11, 2016
    Assignee: Mentor Worldwide LLC
    Inventors: Krasimira Hristov, Luis Alberto Davila, Anita M. Falcon, Michael Hoffman
  • Patent number: 9206535
    Abstract: A system for making braided barbed sutures includes a filament winding assembly, a barbed insert including an elongated core and barbs extending outwardly from the elongated core, and a barbed insert dispenser opening defining a passageway for orienting the barbed insert as the barbed insert is dispensed into the filament winding assembly. The barbed insert dispenser opening allows longitudinal movement of the barbed insert relative to the barbed insert dispenser opening while simultaneously preventing twisting movement of the barbed insert relative to the barbed insert dispenser opening.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: December 8, 2015
    Assignee: Ethicon, Inc.
    Inventors: David C. Lindh, Sr., Jason T. Perkins, Krasimira Hristov, Jesse G. Nawrocki, Robert J. Tannhauser