A mold for forming a joint spacer device or a part thereof includes a rigid container body having a first perimeter profile delimiting a first molding surface configured to shape a first portion of the joint spacer or part thereof; and a rigid cover provided with a second perimeter profile delimiting a second molding surface configured to shape a second portion of the joint spacer or part thereof. The rigid container body and the rigid cover are removably engageable to each other, at the first and the second perimeter profile, so as to delimit a cavity corresponding to the external configuration of the joint spacer or part thereof. The mold includes a weakening system on the rigid container body and on the rigid cover, making them separable into parts to enable the extraction of the spacer device or part thereof, molded therebetween.

A hinged articulating spacer system for revision knee arthroplasty includes a femur rod for a femur, and a tibia rod for a tibia. The tibia rod is hingedly couplable to the femur rod to form a hinged rod assembly. A pre-formed femoral spacer component includes bone cement impregnated with an antibiotic. The pre-formed femoral spacer defines an opening that receives the hinged rod assembly. A pre-formed tibial spacer component includes bone cement impregnated with an antibiotic. The pre-formed tibial spacer defines an opening that receives the hinged rod assembly.

Devices, systems, and methods for applying a bioactive coating to an exterior surface of an implant are disclosed. In some embodiments, the bioactive coating may be applied to the surfaces of the implant within the operating room at the time of implantation. In one embodiment, the implant may be a temporary spacer used to temporary replace an implant in a patient suffering from an infection. The temporary spacer being, for example, an antibacterial material for fighting the infection. In some embodiments, the method includes providing a mold of the implant, and providing the bioactive coating within the mold. The method may further include inserting the implant into the mold so that the exterior surface of the implant contacts the bioactive coating, and then removing the implant from the mold.

The invention relates to a device for producing a knee spacer component by curing bone cement paste. The invention also relates to methods for producing knee spacer components using such a device.

The invention relates to a device for producing a spacer having a casting mold with at least one filling opening, a valve seat, which is connected to the casting mold, wherein the valve seat has an regionally closed head side with at least one first feed-through, a valve body which is mounted so as to be rotatable relative to the valve seat and which has a sealing face, wherein at least one second feed-through is arranged in the sealing face, wherein the valve seat and the valve body together form a valve, wherein the valve is reversibly transferable into an open position and a closed position by rotation of the valve body relative to the valve seat, wherein, in the open position of the valve, the at least one first feed-through of the valve seat and the at least one second feed-through of the valve body are located above one another at least in places and provide a permeable connection through the valve into the casting mold, wherein, in the closed position of the valve, the at least one first feed-through of the valve seat is covered by the sealing face of the valve body, wherein, in the closed position of the valve, the at least one filling opening of the casting mold is covered and wherein the valve is connected on the side remote from the casting mold to a port for liquid-tight connection of a bone cement cartridge or the valve has such a port. The invention also relates to a method for producing spacers using such a device.

The invention relates to a device for producing a spacer having a casting mold, wherein the casting mold has a stem mold and a mold cavity with a spherical surface-shaped inner surface, wherein the stem mold and the mold cavity delimit a common interior, at least one filling opening and at least one vent element, wherein the stem mold is dimensionally stable on injection of bone cement paste into the casting mold, while, on injection of bone cement paste into the casting mold, the mold cavity is expandable at least in the region of the spherical surface-shaped inner surface by pressure imparted by the injected bone cement paste. The invention also relates to a method for producing spacers using such a device.

A proposed treatment of arthrosis/osteoarthritis in a joint of a mammal or human patient involves deposing a liquid material on at least one damaged surface of the joint. To accomplish this, a reservoir (110) is provided, which holds a volume of a biocompatible material in liquid form outside of a body containing the joint (J) to be treated. A proximal end (P) of a tub e-shaped instrument (120) is connected to the reservoir (110), and a distal end (D) of the instrument (120) is inserted into the joint (J). The liquid material is fed through the instrument (120) to the distal end (D) for deposition on the at least one damaged joint surface.

The material is configured to assume a solid form under predefined conditions (e.g. when cooling off, or being exposed to a specific type of radiation). When the material has the solid form, it has a resistance to wear adapted to replace a worn out joint surface.

A femoral hip joint spacer. The spacer has a prosthesis body with a ball head, a neck, a stem and an anchoring sleeve which encloses the stem on a proximal side of the stem with a circumferential fastening area, irrigation liquid inlet and outlet openings in the body surface, at least one irrigation liquid discharge opening on a distal side of the stem and at least one irrigation liquid intake opening on the ball head or on the neck. The discharge opening is connected in a liquid-permeable manner to the inlet opening but not to the outlet opening and the intake opening is connected inside the prosthesis body in a liquid-permeable manner to the outlet opening but not to the inlet opening. A cavity open on two sides is formed inside the anchoring sleeve and connects a proximal side to a distal side of the sleeve in a liquid-permeable manner.

The present invention provides a supporting member and a supporting member assembly including the same to be implanted into or between a subject's bones, and a template plug and a tamper corresponding to the supporting member. The supporting member comprises a main body; a first connecting portion and a second connecting portion formed on the upper and lower sides of the main body respectively and forming a dovetail joint with each other; and a guiding structure formed at a side of the main body and including guiding holes as well as a buffer groove for mating with an external template plug. The supporting members of the invention can be sequentially implanted and connected into a bone or between two connected bones, and improve the defect of the conventional one-size giant implants injuring the surrounding nerves.

An intervertebral fusion cage that is adapted to contain an inserter within its inner volume during insertion of the cage.