Abstract:
골 유도 재생(Guided bone regeneration, GBR)을 위한 멤브레인형 인공 지지체 및 이의 제조 방법을 제공한다. 본 발명에 따른 멤브레인형 인공 지지체는, 체내에서 골 조직과 접하도록 배치되며 서로간 제1 간격을 두고 나란히 배열된 적어도 하나의 섬유층으로 이루어진 제1층과, 제1층 위에 적층되고 체내에서 연 조직과 접하도록 배치되며 서로간 제2 간격을 두고 나란히 배열된 적어도 하나의 섬유층으로 이루어진 제2층을 포함한다. 제1 간격은 제2 간격보다 크게 형성된다.
Abstract:
Porous biocompatible structures suitable for use as medical implants and methods for fabricating such structures are disclosed. The disclosed structures may be fabricated using rapid manufacturing techniques. The disclosed porous structures has a plurality of struts and nodes where no more than two struts intersect one another to form a node. Further, the nodes can be straight, curved, portions that are curved and/or straight. The struts and nodes can form cells which can be fused or sintered to at least one other cell to form a continuous reticulated structure for improved strength while providing the porosity needed for tissue and cell in-growth.
Abstract:
Prosthetic element comprising a cap (11) made of metal material. At least part of said cap (11) consists of a lattice (12) that makes a plurality of open and intercommunicating cavities (18).
Abstract:
This' description deals with a medical device, specifically a prosthetic intervertebral disc (100) having a compressible core (106) bounded by a fiber-containing or fiber- reinforced membrane (116), and top and bottom endplates (102, 104) separated by the compressible core.
Abstract:
The present invention provides both a device and a method. The device is a human made replacement for the soft discs in the spine. A fabric pouch encloses a central hydraulic element made up of small soft beads. Two pouches with beads are implanted into a prepared disc space to function as an intervertebral disc. The method is conversion of the device into a fusion element.
Abstract:
The invention includes a composite material for use in the construction of orthopedic devices and methods for using these composites. The composite material is comprised of at least one filament or cord that can be non-biodegradable and a biodegradable matrix. In other forms the composite material contains at least two components formed of a biodegradable material, which components can be a matrix or a filament or a combination of matrices and filaments. The degradation rate of the two components need not be the same. The composite material is used in the construction of orthopedic devices such as bone plates, bone rods, spinal rods, and laminate sheets that change physical properties in vivo.
Abstract:
Die Erfindung betrifft ein dilatierbarer Ballonimplantat (3), welches begrenzt flüssigkeitsdurchlässig ausgebildet ist. Darüber hinaus betrifft sie eine Vertebroplastie-Vorrichtung mit einem begrenzt flüssigkeitsdruchlässigen Ballonimplantat (3), das mit dem distalen Ende einer Einführhülse (2) verbunden ist, so dass sein Inneres mit dem Einführhülsenlumen kommuniziert.
Abstract:
Sheaths (50) for implantable fixation devices and methods of using the sheaths are disclosed. In some embodiments, the sheaths (50) have a flexible body (52) with a perforated wall, and an interior (54) of the body is sized and shaped to receive the fixation device. In other embodiments, the sheaths (50) include a plurality of flexible or inflexible tubes arranged to form a ring, where the central cavity defined by the ring is sized and shaped to receive the fixation device.
Abstract:
Joint prostheses in which one joint partner is configured as a socket and the other joint partner is configured as a ball head, said ball head being rotatably mounted in the socket, are used, in particular, as shoulder joint and hip joint prostheses. The press fit connection, in particular, conical pressing, is also used as a technique for connecting metallic or ceramic ball heads to the cone. To this end, the ball head provided with a conical boring is placed on the cone. After placing the ball head on the cone, the ball head is subjected to an impact in order to fix the two components. To obtain a conical pressing, the joining surfaces of the boring in the ball head and of the cone must be machined with extreme precision, otherwise the durability of the conical pressing is jeopardized by a non-uniform introduction of force into the ball head or into the pivot. If the ball head is made of ceramic, fissuring can result due to stress peaks in the material, and in the worst case scenario, can lead to a destruction of the ball head. According to the invention, a coupling element (5) is thus provided which is inserted between the cone (5) and the ball head (3) of the press fit connection (1) and whose elasticity and damping properties can be predetermined by the porosity thereof and by the structure of its surface.