The present invention provides valve prostheses adapted to be initially crimped in a narrow configuration suitable for catheterization through body ducts to a target location and adapted to be deployed by exerting substantially radial forces from within by means of a deployment device to a deployed state in the target location.

Disclosed is a bone regeneration device which forms an electric field on a scaffold inserted into a bone damage site. The present bone regeneration device comprises: a battery; a first electric conductor to be connected to a first electrode of the battery and inserted into a bone located on one side of the scaffold; and a second electric conductor to be connected to a second electrode of the battery and inserted into a bone located on the other side of the scaffold, wherein the battery forms an electric field on the scaffold by applying voltage to the first electric conductor and the second electric conductor.

A biomedical implant (16, 18) is formed from magnesium (Mg) single crystal (10). The biomedical implant (16, 18) may be biodegradable. The biomedical implant (16, 18) may be post treated to control the mechanical properties and/or corrosion rate thereof said Mg single crystal (10) without changing the chemical composition thereof. A method of making a Mg single crystal (10) for biomedical applications includes filling a single crucible (12) with more than one chamber with polycrystalline Mg, melting at least a portion of said polycrystalline Mg, and forming more than one Mg single crystal (10) using directional solidification.

A medical implant porous scaffold structure having low modulus, wherein said structure is formed by multiple basic units superposed sequentially along the three-dimensional directions in three-dimensional space, each of the basic units is composed of a quadrangular prism or hexagonal prism having central interconnected pores encircled by four or six side walls, each of the side walls is composed by a “X-type” frame structure formed by two crossed ribs, and the central interconnected pores of the adjacent basic units arranged along the axis direction of the quadrangular prism or the hexagonal prism are interconnected to each other. The structure could not only reduce the modulus of the implant, make the modulus of the implant and strength achieve an ideal match, improve the configuration of traditional metal implants to optimize the distribution of mechanical and weaken the stress shielding effect; but also has a regular interconnected pores structure which is conducive to bone tissue in-growth, and can increase mutual locking of bone tissue and implant and shorten the recovery time of patients.

A new titanium-based implant is disclosed, which is formed by a titanium coating manufactured with biomaterials with applications in osseous implantology. The nanotopographical characteristics of these implants inhibit bacterial adhesion and the formation of a bacterial biofilm on the surface, whilst simultaneously presenting suitable properties for the adhesion, stretching and proliferation of bone-forming cells. Moreover, the invention comprises a method for manufacturing the implant by means of oblique-incidence techniques and the use thereof in osseous implantology.

A medical device and a method and process for at least partially forming a medical device, which medical device has improved physical properties. The one or more improved physical properties of the novel metal alloy can be achieved in the medical device without having to increase the bulk, volume and/or weight of the medical device.

The present invention relates to the preparation methods and applications of biodegradable zinc-copper alloys, which can be applied to medical implant materials. The alloy of present invention is mainly composed of copper (1-10 wt. %), the balance of zinc and trace impurity elements. As-cast alloy ingot is homogenized and then hot processed to refine microstructure. The mechanical properties of the alloys are improved due to the refined microstructure. The alloys are capable of being further fabricated into micro-tubes, wires and plates. There are many advantages of these Zn alloys such as excellent mechanical properties, easy to process, appropriate corrosion resistance, good biocompatibility and so on, which correspondingly can be applied to many kinds of biodegradable medical implant devices. With excellent mechanical properties, good biocompatibility and degrading completely in 6-18 months, the Zn alloys meet the requirements of implant materials for mechanical properties and biosafety.

Methods of providing dose controlled application of bone graft materials are disclosed. In particular, methods for determining a target quantity of bone graft material for clinical application in order to ensure maximum clinical results are provided. These methods comprise determining the target weight of the material to be applied.

The invention relates to compositions including magnesium-lithium alloys containing various alloying elements suitable for medical implant devices. The devices may be constructed of the compositions or have applied thereto a coating formed therefrom. Within the structure of the magnesium-lithium alloy, there is a co-existence of alpha and beta phases. The invention also relates to methods of preparing the magnesium-lithium alloys and articles, such as medical implant devices, for use in medical applications, such as but not limited to, orthopedic, dental, craniofacial and cardiovascular surgery.

Methods and devices are provided for the use of thin-film cuffs on endovascular grafts. A method includes forming a fenestrated thin-film Nitinol sheet, expanding the fenestrated thin-film Nitinol sheet to expand the fenestrations, and attaching the expanded thin-film Nitinol sheet to a longitudinal end of a cover for an endovascular graft to form a cuff for the endovascular graft. The method may further include implanting the endovascular graft into a blood vessel. An endovascular graft may include a cover having a proximal and distal end, a proximal thin-film mesh cuff extending from the proximal end, and a distal thin-film mesh cuff extending form the distal end.