摘要:
Implantable devices and methods for use in the treatment of osteonecrosisare provided. The device includes at least one implant device body adapted for insertion into one or more channels or voids in bone tissue,- a plurality of discrete reservoirs (14) , which may preferably be microreservoirs , located in the surface of the at least one implant device body; and at least one release system disposed in one or more of the plurality of reservoirs, wherein the release system includes at least one drug (15, 20) selected from the group consisting of bone growth promoters, angiogenesis promoters, analgesics, anesthetics, antibiotics, and combinations thereof . The device body may be formed of a bone graft material, a polymer, a metal, a ceramic, or a combination thereof . The device body may be a monolithic structure, such as one having a cylindrical shape, or it may be in the form of multiple units, such as a plurality of beads.
摘要:
A prosthesis (10) for interfacing with an internal region of a bone of a given structure and functioning such as a femoral head (42) and/or neck (44), wherein the internal region of the bone can be an avascular necrotic region. The prosthesis comprises a porous filling member for filling a cored channel provided in the internal region of the bone to provide mechanical stability which preserves the function and structure of the bone, and accommodates an ingrowth of healthy vascularized bone tissue into the internal region of the bone. Also, a method for mechanically stabilizing a bone using the prosthesis.
摘要:
A balloon for use in compressing cancellous bone and marrow (also known as medullary bone or trabecular bone). The balloon comprises an inflatable balloon body for insertion into said bone. The body has a shape and size to compress at least a portion of the cancellous bone to form a cavity in the cancellous bone and/or to restore the original position of the outer cortical bone, if fractured or collapsed. The balloon desirably incorporates restraints which inhibit the balloon from applying excessive pressure to various regions of the cortical bone. The wall or walls of the balloon are such that proper inflation of the balloon body is achieved to provide for optimum compression of the bone marrow. The balloon can be inserted quickly into a bone. The balloon can be made to have a suction catheter. The balloon can be used to form and/or enlarge a cavity or passage in a bone, especially in, but not limited to, vertebral bodies. Various additional embodiments facilitate directionally biasing the inflation of the balloon.
摘要:
A balloon (10) for use in compressing cancellous bone and marrow (also known as medullary bone and trabecular bone) against the inner cortex of bones whether the bones are fractured or not. The balloon comprises an inflatable, non-expandable balloon body (12, 14) for insertion into said bone. The body has a shape and size to compress at least a portion of the cancellous bone to form a cavity in the cancellous bone and to restore the original position of the outer cortical bone, if fractured or collapsed. The balloon is prevented from applying excessive pressure to the outer cortical bone. The wall or walls of the balloon are such that proper inflation of the balloon body is achieved to provide for optimun compression of all of the bone marrow. The balloon is folded so that it can be easily inserted into a bone. The balloon can be made to have a suction catheter (16). The main purpose of the balloon is the forming or enlarging of a cavity or passage in a bone, especially in, but not limited to, vertebral bodies.
摘要:
A method of long bone strengthening and a composite implant for such strengthening. Also disclosed is a kit for building a composite implant in -situ in long bones. In an exemplary embodiment of the invention, the implant comprises a plurality of rigid tensile rods, in matrix of cement and surrounded by a partially porous bag.
摘要:
Various systems, and methods are provided for transporting a therapeutic agent to the interior of a skeletal support structure. In one implementation, a first elongated member, a second elongated member and an expandable structure provide for non-axial access to the interior of a skeletal support structure. The second elongated member is configured to transport a radiation source through a lumen in the first elongated member to the interior of the skeletal support structure.
摘要:
Expandable devices and methods for treating and enlarging a tissue, an organ or a cavity. The device is composed of a hollow expanding pouch (5) made of a resorbable material or a perforated material that can be attached to a filling element (6). The pouch can be filled with a biocompatible material, one or more times in few days interval, after the insertion of the device. While filling the pouch every few days the tissue expands and the filling material if it is bioactive starts to function. The devices allow immediate direct contact between the filling material and the tissue. These devices and methods can be used for example for: horizontal and vertical bone augmentation in the jaws, soft tissue augmentation, fixating bone fractures etc.
摘要:
Expandable devices and methods for treating and enlarging a tissue, an organ or a cavity. The device is composed of a hollow expanding pouch made of a resorbable material or a perforated material that can be attached to a filling element. The pouch can be filled with a biocompatible material, one or more times in few days interval, after the insertion of the device. While filling the pouch every few days the tissue expands and the filling material if it is bioactive starts to functon. The devices allow immediate direct contact between the filling material and the tissue. These device and methods can be used for example for: horizontal and vertical bone augmentation in the jaws, soft tissue augmentation, fixating bone fractures etc.
摘要:
A method of long bone strengthening and a composite implant for such strengthening. Also disclosed is a kit for building a composite implant in -situ in long bones. In an exemplary embodiment of the invention, the implant comprises a plurality of rigid tensile rods, in matrix of cement and surrounded by a partially porous bag.
摘要:
Implantable devices and methods for use in the treatment of osteonecrosisare provided. The device includes at least one implant device body adapted for insertion into one or more channels or voids in bone tissue; a plurality of discrete reservoirs, which may preferably be microreservoirs, located in the surface of the at least one implant device body; and at least one release system disposed in one or more of the plurality of reservoirs, wherein the release system includes at least one drug selected from the group consisting of bone growth promoters, angiogenesis promoters, analgesics, anesthetics, antibiotics, and combinations thereof. The device body may be formed of a bone graft material, a polymer, a metal, a ceramic, or a combination thereof. The device body may be a monolithic structure, such as one having a cylindrical shape, or it may be in the form of multiple units, such as a plurality of beads.