Abstract: The system and device ensure a smooth and shockless effect of changeover of the first and second jaws from the diverged position to the clamped position with the control option of the impact force upon closing. The left atrial appendage isolation system incorporates a clip device between the first and second jaws, a clamping device and a control device. The clip has a connecting device, the clamping element is configured to contain the first hinge. The connecting device comprises the second hinge, the first and second hinges being connected to the corresponding ends of the first jaw and are designed to rotate the specified first jaw relative to the second jaw made fixed, at an angle ranging from 0° to 180°. The first hinge is made controllable, the control device comprises the first hinge actuator adapted to couple detachably with tension to fit with the said first hinge.

Abstract: The invention concerns medical applications and can be used in oncology, as well as in neurosurgery, traumatology, neurology, rehabilitation. The aim of the inventions claimed is the creation of a new method of local exposure on biological tissues and a new tissue-substitute applicator that benefits to both destruction and replacement of tumor tissue by restored biological tissue with no external exposure applied (alternating magnetic field, heating, etc.) The aim set is solved by using porous polytetrafluoroethylene as a cytostatic material. The aim set is also achieved by using porous polytetrafluoroethylene in production of a tissue-substitute applicator for treating or replacing tumor tissues. The aim set for the method of local exposure to biological tissues, including the placement of a tissue-substitute polymeric applicator in direct contact with the biological tissue to be exposed, is solved by using porous polytetrafluoroethylene for the constituent polymeric material.

Abstract: The system and device ensure a smooth and shockless effect of changeover of the first and second jaws from the diverged position to the clamped position with the control option of the impact force upon closing., The left atrial appendage isolation system incorporates a clip device between the first and second jaws, a clamping device and a control device. The clip has a connecting device, the clamping element is configured to contain the first hinge. The connecting device comprises the second hinge, the first and second hinges being connected to the corresponding ends of the first jaw and are designed to rotate the specified first jaw relative to the second jaw made fixed, at an angle ranging from 0° to 180°. The first hinge is made controllable, the control device comprises the first hinge actuator adapted to couple detachably with tension to fit with the said first hinge.

Abstract: The invention concerns medical applications and can be used in oncology, as well as in neurosurgery, traumatology, neurology, rehabilitation. The aim of the inventions claimed is the creation of a new method of local exposure on biological tissues and a new tissue-substitute applicator that benefits to both destruction and replacement of tumor tissue by restored biological tissue with no external exposure applied (alternating magnetic field, heating, etc.) The aim set is solved by using porous polytetrafluoroethylene as a cytostatic material. The aim set is also achieved by using porous polytetrafluoroethylene in production of a tissue-substitute applicator for treating or replacing tumor tissues. The aim set for the method of local exposure to biological tissues, including the placement of a tissue-substitute polymeric applicator in direct contact with the biological tissue to be exposed, is solved by using porous polytetrafluoroethylene for the constituent polymeric material.

Abstract: An implant is suitable for treatment for nerve tissue injuries of various types in any period of the severe injury to the nerve tissue, in particular, of the spinal cord, immediately after relief of disturbed vital functions for the early and stable restoration of its conduction in the acute period, prevention from or reduction of the demyelination processes. The technical result is to ensure the possibility to restore the injured nerve tissue in volume. The implant is the body made from porous material, such as the porous PTFE having three-dimensional structure containing the open through pores and dead-ended pores uniformly distributed over inner surfaces of the open pores and connected with the inner surfaces; pore sizes are randomly distributed within the range of 150-300 ?m. The method of treatment for nerve tissue injuries and use of the porous PTFE for manufacture of the implant are also claimed.

Abstract: A group of dental implants for the two-step implantation in the alveolar process is presented aiming to protect reliably the implantation area from ingress of the infection from the oral cavity due to the tight connection of the precervical side of the implant with the periodontal tissue. The set aim is achieved in the dental implant with the support to fix the dental prosthesis and the screw part for installation in the bone tissue, as well as with the ring head located between the dental prosthesis support and the screw part, made from the porous three-dimensional structure of the polymeric material and intended for ingrowth of the gum tissues, by means of the fact that the mentioned ring head is equipped with the reinforcing element made as a hollow body of revolution with apertures and located over the ring head.

Abstract: A porous three-dimensional structure of polytetrafluoroethylene was created featuring an enhanced ability of soft tissue ingrowth, or, in the second embodiment, combining the properties of an enhanced ability of soft tissue ingrowth with a barrier for the deposition of the living tissue cells. In the first embodiment of the porous three-dimensional structure of polytetrafluoroethylene it contains the open through pores and the blind pores, uniformly distributed over the inner surfaces of the open pores and connected therewith, and is made of mixture of the free-flow polytetrafluoroethylene having the granules sized from 100 to 300 microns, and the constraint-flow polytetrafluoroethylene having the granules sized up to 20 microns. In the second embodiment of the porous three-dimensional structure at least one surface of the three-dimensional body is provided with a barrier layer.

Abstract: The porous three-dimensional structure of the implant is made as a three-dimensional body with open through pores and one-side open pores distributed evenly on the internal surface of open pores and connected to the internal surface. Sizes of pores are randomly distributed in the range of 150-300 ?m. A reinforcing element is made from titanium or titanium alloy as a mesh with the protrusions evenly distributed on the outer surface of the mesh, and is located on the surface of the three-dimensional body. The method of manufacture and method of installation of one of the variants of the dental implant with the possibility of press fit in the jaw bone immediately after extraction of the tooth without arrest of bleeding are based on the porous three-dimensional structure claimed as well.

Abstract: The porous three-dimensional structure of the implant is made as a three-dimensional body with open through pores and one-side open pores distributed evenly on the internal surface of open pores and connected to the internal surface. Sizes of pores are randomly distributed in the range of 150-300 ?m. A reinforcing element is made from titanium or titanium alloy as a mesh with the protrusions evenly distributed on the outer surface of the mesh, and is located on the surface of the three-dimensional body. The method of manufacture and method of installation of one of the variants of the dental implant with the possibility of press fit in the jaw bone immediately after extraction of the tooth without arrest of bleeding are based on the porous three-dimensional structure claimed as well.

Abstract: The invention is related to medicine and, in particular, to a class of implants intended for osteosynthesis i.e. in the treatment of essentially all kinds of bone fractures. It is the aim of the present invention to eliminate the above contradiction and to design a bone implant and a spacer thereof that would not cause periosteum necrosis and osteoporosis of the bone and also a method of placing a bone implant of the kind. This aim is achieved by using polytetrafluorethylene, in particular, in the form of a porous surface three-dimensional structure as a spacer for a support surface of a bone implant.

Abstract: A group of dental implants for the two-step implantation in the alveolar process is presented aiming to protect reliably the implantation area from ingress of the infection from the oral cavity due to the tight connection of the precervical side of the implant with the periodontal tissue. The set aim is achieved in the dental implant with the support to fix the dental prosthesis and the screw part for installation in the bone tissue, as well as with the ring head located between the dental prosthesis support and the screw part, made from the porous three-dimensional structure of the polymeric material and intended for ingrowth of the gum tissues, by means of the fact that the mentioned ring head is equipped with the reinforcing element made as a hollow body of revolution with apertures and located over the ring head.

Abstract: A porous three-dimensional structure of polytetrafluoroethylene was created featuring an enhanced ability of soft tissue ingrowth, or, in the second embodiment, combining the properties of an enhanced ability of soft tissue ingrowth with a barrier for the deposition of the living tissue cells. In the first embodiment of the porous three-dimensional structure of polytetrafluoroethylene it contains the open through pores and the blind pores, uniformly distributed over the inner surfaces of the open pores and connected therewith, and is made of mixture of the free-flow polytetrafluoroethylene having the granules sized from 100 to 300 microns, and the constraint-flow polytetrafluoroethylene having the granules sized up to 20 microns. In the second embodiment of the porous three-dimensional structure at least one surface of the three-dimensional body is provided with a barrier layer.

Abstract: The invention is related to medicine and, in particular, to a class of implants intended for osteosynthesis i.e. in the treatment of essentially all kinds of bone fractures. It is the aim of the present invention to eliminate the above contradiction and to design a bone implant and a spacer thereof that would not cause periosteum necrosis and osteoporosis of the bone and also a method of placing a bone implant of the kind. This aim is achieved by using polytetrafluorethylene, in particular, in the form of a porous surface three-dimensional structure as a spacer for a support surface of a bone implant.

Abstract: The invention relates to dentistry, in particular to a group of dental implants used for two-stage implantation into the alveolar bone. Said invention makes it possible to create the conditions for successful ingrowth of bone and soft tissues into the implant obtainable by the best ingrowth of the bone tissue into the internal porous structure and the soft tissue ingrowth into a surface porous three-dimensional structure in the area of the alveolar bone. The inventive cylindrical implant, the base of which is made of titanium, comprises a cavity for the porous structure and a channel for injecting medicinal preparations, wherein the base is embodied in the form of an external thread-shaped spiral which is fastened to three longitudinal reinforcing ribs arranged inside the spiral together with the porous structure, the pore size of which ranges from 150 to 300 mkm.