An osteosynthesis assembly kit includes a bone implant, in particular an artificial bone implant, and at least two two-part eccentric connectors.

A cranial burr hole plate is provided, the burr hole plate comprising a plate body and a plurality of spikes extending from the plate body. The spikes are configured to engage cranial bone, wherein the burr hole plate is deformable to enable movement of the spikes from a burr hole disengaging configuration to a burr hole engaging configuration upon deformation of the burr hole plate. Also provided is a deformation instrument for moving the spikes of a cranial burr hole plate into the burr hole engaging configuration is provided. Moreover, a cranial burr hole plating system is provided that comprises the cranial burr hole plate and the deformation instrument.

A fixing device and an installation tool and a fixing method of the cranial flap, wherein the installation tool comprises a driving part, a loading part and an over torque protection mechanism disposed between the driving part and the loading part, the driving part drives the loading part to rotate by the over torque protection mechanism, the loading part is used for tightening the cranial flap fixation device, when the torque of the driving part acting on the over torque protection mechanism is larger than the threshold value, the over torque protection mechanism will be separated from the driving part and/or the loading part. The present invention not only effectively improves the installation and disassembly efficiency of the installation tool, but also eliminates hidden safety hazards caused by uncertainties caused by human factors in the tightening process, significantly improves the safety of the installation process.

An implant for filling a bore hole in a bone includes: a biocompatible plate having upper and lower surfaces; and a support frame having a central portion located at least partially within the plate, an outer rim having a plurality of fastening points adapted for attaching the implant to bone surrounding a bore hole in which the plate is inserted, and a plurality of arms extending between the central portion and the outer rim.

An intracranial prosthesis comprised of a flat body having an interior ultrasound-compatible window and means about the outer portion capable of engaging a plurality of diagnostic instruments and/or intracranial delivery systems so that a practicing medical professional can monitor certain parameters of a patient or deliver therapeutic agents to the patient while using an ultrasound-monitoring device to image the patient's brain. The prosthesis is designed to allow for the continuous, uninterrupted, simultaneous monitoring of a number of parameters of a patient's brain at the patient's bedside.

A plate assembly for attaching a bone flap to a skull is provided and may include a first plate member attached to the bone flap and a second plate member supported by the first plate member and movable between a retracted position and an extended position relative to the first plate member. The second plate member may be removed from a cut line between the bone flap and the skull in the retracted position and may extend over the cut line in the extended position.

An electrode device is disclosed that is removably implantable at least partially in a bone or other tissue. The electrode device includes a head and a shaft connected to the head. The shaft has a shaft body extending distally from the head in an axial direction of the shaft, and a conductive element including a conductive surface at a distal end of the shaft. A plurality of discrete anchor elements can project from an outer surface of the shaft body in a transverse direction of the shaft. A conductive wire can be permanently fixed to a proximal end surface of the conductive element, the end surface being located in or adjacent the head. The head can have a convex outer surface and a concave inner surface. An electrode array and a reamer tool is also disclosed.

Disclosed is a cranial decompression connector, including two screws (1) and an elastic connecting member (2) connected between the two screws (1). Two ends of the elastic connecting member (2) are respectively connected to the two screws (1), one screw (1) is configured to be fixedly connected to a bone window, and the other screw (1) is configured to be fixedly connected to a bone plate. When a patient undergoes a craniotomy, the two screws (1) are respectively fixed to the bone window and the bone plate, and the two ends of the elastic connecting member (2) are respectively connected to the two screws (1) to connect the bone window and the bone plate together. As the pressure of the patient's brain tissue increases, the bone plate is displaced to the outside and protrudes out of the bone window to decrease the intracranial pressure, the patient's brain tissue swelling subsides, the intracranial pressure returns to the normal range, and the bone plate automatically returns to the original position under the traction of the elastic connecting member (2), such that the bone plate gradually merges with the bone window to form a whole. The self-repair of the skull is achieved, and secondary skull repair for the patient is avoided.

Cranial flap fixator (1) comprising a rigid rod (13), a lower disk (11) placed at a distal extremity of said rigid rod (13), an upper disk (12) mounted so as to be mobile along said rigid rod (13) and a grip (2) connected to the proximal extremity of said rigid rod (13) enabling said upper disk (12) to be made to slide towards said lower disk (11), said distal extremity of said rigid rod (13) being provided with a ball-joint element (131) and said lower disk (11) comprising a recess (111) for receiving said ball-joint element (131) characterized in that said lower disk (11) and said upper disk (12) have convex shapes and are made out of a material enabling them to get deformed so as to adapt to the shapes of the skull and the cranial flap in such a way that, after application, the lower (11) and upper (12) disks are placed flat against and secured to the internal and external surfaces of the skull and of the cranial flap (C), the disks and the skull then being contained within a same profile.

A bone drilling cover fixing device includes an upper fastening member and a lower fastening member. The upper fastening member includes a first base portion and a first coupling portion. The first coupling portion protrudes from an underside of the first base portion and can be inserted into a drilled hole. The lower fastening member includes a second base portion and a second coupling portion. The second base portion includes at least one first arm and at least one second arm. The first arm has a length equal to that of the second arm. The length of the first arm and the length of the second arm are greater than a radius of the drilled hole. When in use, the first and second arms are inserted in an oblique manner into the drilled hole to be positioned at two ends of an underside of the drilled hole.