A coating layer, for example PEEK or titanium foil, shields a bone implant surface from wearing interactions with surfaces of bone and/or other implants. The coating prevents shedding particles which are difficult to distinguish from evidence of potentially dangerous conditions, for example, microorganism contamination and/or degenerating tissue. Methods and structures for securing a coating layer are described. Other uses and implementations of coating layers are described.

A composite implant comprising an injectable matrix material which is flowable and settable, and at least one reinforcing element for integration with the injectable matrix material, the at least one reinforcing element adding sufficient strength to the injectable matrix material such that when the composite implant is disposed in a cavity in a bone, the composite implant supports the bone. A method for treating a bone, the method comprising: selecting at least one reinforcing element to be combined with an injectable matrix material so as to together form a composite implant capable of supporting the bone; positioning the at least one reinforcing element in a cavity in the bone; flowing the injectable matrix material into the cavity in the bone so that the injectable matrix material interfaces with the at least one reinforcing element; and transforming the injectable matrix material from a flowable state to a non-flowable state so as to establish a static structure for the composite implant, such that the composite implant supports the adjacent bone.

A coating for an electrosurgical electrode to reduce the potential for sticking of tissue. The coating is an elastomer containing a plurality of diamond particles having an average diameter of between diameter of 0.5 and 500 nanometers and that comprise between 0.1 and 25 percent by weight of the coating. The coating may be formed by reducing a silicone dispersion with xylene, adding the plurality of diamond particles, and agglomerating the plurality of diamond particles through sonification and then applied to the device. The coasting may also be formed by reducing a silicone dispersion with xylene, adding the plurality of diamond particles, and agglomerating the plurality of diamond particles through sonification, and then applied to the device by plasma enhanced vapor deposition.

The invention relates to polymer compositions including a polymer matrix in which are dispersed carbon nanotubes and adsorbent elements selected from activated carbon particles and graphene nanoplatelets, as well as electrodes including such compositions and electrical circuits and devices including the electrodes.

The present invention provides: a biological electrode composition formable a living body contact layer for a biological electrode which is excellent in conductivity and biocompatibility, as well as light in the weight thereof and producible at a low cost, and in addition, which does not cause a significant decrease in the conductivity thereof regardless of under a water-wet condition and a dry condition; a polymer compound which can be suitably used for the biological electrode composition; a polymerizable monomer suitable as a raw material of the polymer compound; a biological electrode having a living body contact layer formed of the biological electrode composition; and a method for producing the same; and wherein, the polymerizable monomer is represented by the following general formula (1).

##STR00001##

An orthopaedic implant includes a body being elongated in a longitudinal direction and having an outer wall, one or more openings through the outer wall, and a cannulation disposed along a length of the body and defined by the outer wall, the cannulation being non-uniform along the longitudinal direction, wherein the cannulation is configured such that a moment of inertia of the implant is substantially uniform along the longitudinal direction.

An orthopaedic implant includes a body being elongated in a longitudinal direction and having an outer wall, one or more openings through the outer wall, and a cannulation disposed along a length of the body and defined by the outer wall, the cannulation being non-uniform along the longitudinal direction, wherein the cannulation is configured such that a moment of inertia of the implant is substantially uniform along the longitudinal direction.

The present application relates to a monopolar electrode and a bipolar electrode that are used for electrosurgical instruments. The monopolar electrode and the bipolar electrode each include a conductive non-stick coating which is made by doping graphene and/or metal particles in a PTFE (polytetrafluoroethylene) base material. The present application also relates to a preparation method of a composite material forming the conductive non-stick coating. Since PTFE itself can prevent adhesion, the conductivity of PTFE can be improved by doping various conductive materials. After the composite material coating formed thereby covers a metal electrode, it is ensured that the working region and work energy of an electrotome are not reduced, the electrical conductivity of the electrode can be guaranteed, not only the blood coagulation effect of the electrotome is not affected but also the adhesion of the electrode on a tissue can be reduced. Furthermore, the structure is simple, and manufacturing is easy.

A composite implant comprising an injectable matrix material which is flowable and settable, and at least one reinforcing element for integration with the injectable matrix material, the at least one reinforcing element adding sufficient strength to the injectable matrix material such that when the composite implant is disposed in a cavity in a bone, the composite implant supports the bone.

A method for treating a bone, the method comprising: selecting at least one reinforcing element to be combined with an injectable matrix material so as to together form a composite implant capable of supporting the bone; positioning the at least one reinforcing element in a cavity in the bone; flowing the injectable matrix material into the cavity in the bone so that the injectable matrix material interfaces with the at least one reinforcing element; and transforming the injectable matrix material from a flowable state to a non-flowable state so as to establish a static structure for the composite implant, such that the composite implant supports the adjacent bone.

An IM nail is positioned within a medullary canal and secured in position by bone screws. The nail includes bores which engage insert assemblies and engage the screws. Each insert assembly is in two parts. Part includes a head and a narrower neck; and similarly, part includes a head and a narrower neck. A bore extends through the assembly from one side to the other. Part of the assembly is engaged with a nail by insertion into the nail via mouth; and part is engaged with the nail by insertion into the nail via mouth. When in position the parts abut one another and define bore which can receive screws. The nail is made from a polyetheretherketone (PEEK)/carbon fibre composite. Parts of the insert assemblies are produced separately from the nail. They may be produced by injection moulding a polymeric composition comprising PEEK and barium sulphate.