摘要:
A surgical implant (20) comprises a flexible, areal basic structure (22) having a first face and a second face and being provided with pores (26) extending from the first face to the second face. A barrier layer (24) having a first face and a second face is placed, with its second face, at the first face of the basic structure (2) and attached to the basic structure (22). The barrier layer (24) is deformed into at least part of the pores (26) where it forms, in a respective pore (10), a barrier region (28).
摘要:
A meniscus implant including a c-shaped scaffold having an arcuate middle section extending between an anterior end and a posterior end. A reinforcing network of fibers independent from the scaffold is embedded therein. Fibers of said network fibers exit each end of the scaffold to form respective anterior and posterior attachment segments which extend parallel to a central axis of the scaffold. The network of fibers is configured to convert an axial compressive force on said scaffold to tensile loads on said attachment points.
摘要:
Provided are hybrid soft tissue constructs comprising a core material, a biomaterial matrix and mammalian cells. Also provided are methods of augmenting or reconstructing a soft tissue of a mammal. Additionally, methods of forming a hybrid soft tissue construct are provided. The use of the above constructs for augmenting or reconstructing a soft tissue of a mammal are further provided. Additionally provided is the use of the above constructs for the manufacture of a medicament for augmenting or reconstructing a soft tissue of a mammal.
摘要:
Fibrocartilage implants characterized by circumferential fiber networks embedded in arcuate or torroidal scaffolds with orthogonal fiber networks embedded therein to prevent separation of the circumferential fiber networks. The fiber networks convert axial compressive forces on the scaffolds to tensile loads on the circumferential fibers. Artificial knee meniscus and vertebral disc implants are disclosed, as well as articular disc implants for joints such as the temporomandibular joint and wrist. Methods for implanting the fibrocartilage devices are also disclosed.
摘要:
Intervertebral implant components having compliant coatings, and methods of making and implanting the implant components are provided. The embodiments relate to compositions, methods and devices having a compliant surface coating that permits application of the device in areas without significant bone reformation to accept the device.
摘要:
Fibrocartilage implants characterized by circumferential fiber networks embedded in arcuate or torroidal scaffolds with orthogonal fiber networks embedded therein to prevent separation of the circumferential fiber networks. The fiber networks convert axial compressive forces on the scaffolds to tensile loads on the circumferential fibers. Artificial knee meniscus and vertebral disc implants are disclosed, as well as articular disc implants for joints such as the temporomandibular joint and wrist. Methods for implanting the fibrocartilage devices are also disclosed.
摘要:
An improved mechanism for expanding or lifting a device in accordance with various embodiments of the present invention is a coaxial screw gear sleeve mechanism. In various embodiments, coaxial screw gear sleeve mechanisms includes a post with a threaded exterior surface and a corresponding sleeve configured to surround the post, the corresponding sleeve having a threaded interior surface configured to interface with the threaded exterior surface of the post and a geared exterior surface. A drive mechanism can be configured to interface with the geared exterior surface of the sleeve, causing a device utilizing such a mechanism to expand or lift between a collapsed configuration and an expanded configuration.
摘要:
A meniscus implant including a c-shaped scaffold having an arcuate middle section extending between an anterior end and a posterior end. A reinforcing network of fibers independent from the scaffold is embedded therein. Fibers of said network fibers exit each end of the scaffold to form respective anterior and posterior attachment segments which extend parallel to a central axis of the scaffold. The network of fibers is configured to convert an axial compressive force on said scaffold to tensile loads on said attachment points.
摘要:
Improved methods and apparatuses for vertebral body distraction and fusion in accordance with various embodiments of the present invention employ one or more coaxial screw gear sleeve mechanisms. In various embodiments, coaxial screw gear sleeve mechanisms include a post with a threaded exterior surface and a corresponding sleeve configured to surround the post, the corresponding sleeve having a threaded interior surface configured to interface with the threaded exterior surface of the post and a geared exterior surface. A drive mechanism can be configured to interface with the geared exterior surface of the sleeve, causing the device to distract.
摘要:
The present invention discloses a biomedical scaffold material for articular cartilage repair, which is a multi-layer composite scaffold in the cylindrical plug form. It includes a lower porous ceramic layer intimating the bone zone of the joint, and an upper porous ceramic layer intimating the bottom cartilage zone of the joint; a dense ceramic separation layer connecting the lower and upper porous ceramic layers; and a porous gelatin layer, intimating the middle cartilage zone of the joint, affixed to the upper porous ceramic layer.