A medical device includes a shaft portion with a hollow shape and inflected portions or an exposed portion. The shaft portion is inserted into a cortical bone or penetrates through the cortical bone and is inserted to a position reaching a cancellous bone at an inner side of the cortical bone. The inflected portions are inflected to radial direction outer sides from one end portion of an axial direction of the shaft portion, and are exposed at a surface of the cortical bone. The exposed portion includes a portion that extends to the radial direction outer side from the one end portion of the axial direction of the shaft portion, and is exposed at the surface of the cortical bone.

The present invention provides devices and methods for controlled and continuous delivery of drugs into the brain by bypassing the blood brain barrier, without the need for any surgical manipulation of the brain. The respiratory mucosa in the maxillary sinus or in the nasal region is surgically accessed from the oral or maxillofacial region through a window made on the bone overlying the mucosa. The device is used to deliver drugs in a continuous and controlled manner either beneath or above the respiratory mucosa depending on the clinical requirements, drug formulation and the volume of drug used. The drug distributes into the brain from the delivery site by bypassing the blood brain barrier without causing any significant increase of the drug in the peripheral circulation. The device can be used for continuous and controlled drug delivery into the brain by bypassing the blood brain barrier for a number of medical conditions.

The present dental implant, whether tapered or cylindrical, is cannulated, to allow placement over a slender post pre-embedded into the host bone. The post is a rigid, not a flexible, construct that can be placed accurately, as to position and angle, in the jawbone. With the post in the correct position, the implant is then installed directly over the temporarily anchored post, and after tightening of the implant by rotation the post is removed.

A method for producing a tooth replacement part to be secured on an implant, based on a 3D model of the tooth replacement part with a surface and with a continuous screw channel with an initial shape in the form of a cylindrical barrel, with a first and a second end, wherein a cross sectional area of the screw channel is designed to be constant and/or to increase in size towards the second end of the screw channel. A 3D model of an inlay with a jacket surface, an upper face and a lower face is generated. A part of the surface of the 3D model of the tooth replacement part that is cut out through the second end of the final shape of the screw channel is used as the upper face and the jacket surface is configured as a negative form of a part of the final shape of the screw channel that adjoins the second end.

Dental device (1) for ridge preservation around the socket (2) of an extracted tooth and for promoting jaw bone regeneration inside the socket (2) of the extracted tooth, the dental device (1) comprising: a screw (3) which is entirely made of a biodegradable material to eliminate the need for a removal surgery, wherein the screw (3) is adapted for tight fixation within the jaw bone (4) in the socket (2) to prevent micromovements during bone-tissue regeneration, wherein the screw (2) has a length such that its top is, in the inserted state, flush with the alveolar ridge (5) around the socket (2) to promote full bone regeneration inside the socket (2), and wherein the screw (3) has a hollow (6) and pores (7), wherein the diameters of the pore (7) is substantially equal to or larger than 20 micrometers.

The invention provides a dental implant system with a surface gradient microporous structure and a preparation method thereof. The dental implant system includes a non-threaded micro-cone cylindrical dental implant and an abutment, wherein the dental implant includes a microporous layer with a bionic bone trabecular structure and a base with extremely high density and mechanical strength. The dental implant system of the invention has both the precision of the internal structure and the bionic characteristics of the surface structure, which effectively improves the long-term stability after implantation, reduces the complexity of the processing process of the dental implant system, and can realize personalized and batch production.

A dental implant for implantation in the jawbone for the purpose of fastening a superstructure. The implant includes an implant body that extends between a coronal and an apical end and which defines an enossal outer surface. The implant body defines a cavity that is open coronally as well as at least one exit opening from an inside to the enossal outer surface. An outer thread is shaped on the implant body. A thermoplastic element is moreover present in the solid condition and is arranged in the cavity or introducible into the cavity, wherein the thermoplastic element can be brought into an at least partly flowable condition by way of applying a pressing force, which is directed apically into the cavity, and mechanical oscillations and can be pressed through the at least one exit opening into surrounding tissue on account of the pressing force.

A human implant includes at least one osteoconductive scaffold and at least one main carrier. The at least one osteoconductive scaffold is made of a metal material, is manufactured by 3D printing, and has at least one connecting portion, at least one separation element, and a proliferation portion. The at least one connecting portion is porous. The at least one separation element is disposed on one of two sides of the at least one connecting portion. The proliferation portion is disposed on one of two sides of the at least one separation element away from the at least one connecting portion, wherein osteoblasts proliferate in the proliferation portion. The at least one main carrier is made of a medical macromolecular material and is mounted to the at least one connecting portion being porous, such that the at least one main carrier is mounted to the at least one osteoconductive scaffold.

The invention relates to a scan abutment (2) for determination of the position of the plane of the front face (1.1) of a dental endosseous implant (1), wherein the abutment (2) has a longish, hollow shaft (4) and a base (3) at the bottom side (4.2) of the shaft (4), and the base (3) with at least a part of its bottom side (8.2) is attachable onto the front face (1.1) of the implant (1), wherein the base (3) has a recess (9) extending from the upper side (8.1) to the lower side (8.2) of the base (3), wherein the longish, hollow shaft (4) has from a side wall (10) having at least one through hole (5a) at its outer periphery, wherein the through hole of the side wall (10) extends from the bottom side (4.2) of the shaft (4) to the upper side (4.1) of the shaft, thereby forming a planar surface (6) in the plane (12) between shaft (4) and base (3).

The invention provides a dental implant system with a surface gradient microporous structure and a preparation method thereof. The dental implant system includes a non-threaded micro-cone cylindrical dental implant and an abutment, wherein the dental implant includes a microporous layer with a bionic bone trabecular structure and a base with extremely high density and mechanical strength. The dental implant system of the invention has both the precision of the internal structure and the bionic characteristics of the surface structure, which effectively improves the long-term stability after implantation, reduces the complexity of the processing process of the dental implant system, and can realize personalized and batch production.