37 results about "Bone flaps" patented technology

The disclosed cranial flap clamp includes first and second clamping members and an extension member. A portion of the first member is positionable against inferior surfaces of a bone flap and skull and a portion of the second member is positionable against superior surfaces of the flap and skull. The extension member extends from the first member through the second member and fits between the flap and skull. Movement of either of the clamping members urges the inner surface of the first member against the inferior surfaces of the flap and skull and urges the inner surface of the second member against the superior surfaces of the flap and skull. The securing instrument includes features useful in cutting or crimping the extension member. The tension limiting assembly provides variable designs and combinations for limiting the tension placed on, and exerted by, the securing instrument during use.

The invention relates to the technical field of medical apparatus and instruments, and discloses a skull repairing support frame. The 'H'-shaped skull repairing support frame comprises a bottom plate, a movable upper plate and a fixed upper plate. The middles of two side edges of the bottom plate are fixedly connected with the bottoms of support rods, the movable upper plate is movably connected with the tops of the support rods, the fixed upper plate is fixedly connected with the tops of the support rods, and at least two connecting holes are respectively formed in the movable upper plate and the fixed upper plate. The ends of the fixed upper plate are clamped on the normal skull at the peripheral edge of a bone window when the skull repairing support frame is used, so that the bottom plate can cling to the bottom surface of the skull of a patient, the movable upper plate can be upwardly lifted after the fixed upper plate is firmly fixed by the aid of screws, repaired free bone flaps can be arranged on the bottom plate according to corresponding shapes, then the movable upper plate can be reset and can be firmly fixed by the aid of screws. The skull repairing support frame has the advantages that the skull repairing support frame is simple in structure and reliable in performance, can be used conveniently and quickly and can be reused, trauma of the patient can be reduced, and the treatment cost can be lowered for the patient.

The present disclosure provides dynamic cranial fixation devices and related methods for attaching a resected bone portion(s), or a bone flap, to the skull in such a manner that allows for brain swelling to occur with minimal constraint following a craniotomy or craniectomy. The present disclosure provides dynamic cranial fixation devices and related methods that provide outward movement of the bone flap as the brain swells underneath the bone flap to prevent or reduce a rise in the intracranial pressure. Once the brain swelling resolves, the dynamic cranial fixation devices and related methods of the present disclosure allow the bone flap to return to its original position (before resection) without further surgery, implantation or the like. Once the bone flap return to its original position (or substantially similar position), the bone flap may fuse with the neighboring bone(s), potentially with the assistance of one or more fusion aid.

Disclosed is a manufacturing method of a skull guiding formwork for calvarium reconstruction surgery. The manufacturing method includes building a three-dimensional outline model of a skull of a patient; predicting a surgical objective model; determining a cutting path of craniotomy and the quantity and the shapes of bone flaps required to be cut and cutting and obtaining the bone flaps according to the cutting path; building a three-dimensional cutting guiding formwork model; designing splicing structures among the bone flaps and building a three-dimensional splicing guiding formwork model; and manufacturing a cutting guiding formwork and a splicing guiding formwork according to the cutting guiding formwork model and the splicing guiding formwork model. The skull guiding formwork for calvarium reconstruction surgery comprises the cutting guiding formwork and the splicing guiding formwork, and an outline of an edge of a cutting guiding formwork body shows the cutting path during surgery; and a mortise connecting structure which is spliced with the adjacent splicing guiding formwork or a skull base is arranged at the outer edge of a splicing guiding formwork body. The manufacturing method has the advantages that important anatomy position can be protected during surgery, excessive cutting to the bone flaps is avoided, and the manufacturing method is favorable for postoperation recovery and healing.