Device for repairing skull base defects

Abstract

The invention provides a device for repairing skull base defects. An inner lock rack comprises a bundle of lock bars which can gather together; ends, at one side, of the lock bars are evenly and radially hinged to an inner lock nut; the inner lock nut is mounted on a connecting screw; an outer lock nut is fixed to the center of an outer lock rack; the outer lock nut is mounted on the connecting screw; the outer lock nut is fed along the connecting screw, so that an outer film is attached to the outer side of the skull and that pre-tightening force between the inner lock rack and the outer lock rack locks an inner film and the outer film to the inner and outer sides of the skull; the connecting screw is a hollow screw; the connecting screw is provided with a side hole located between the inner film and the outer film and communicated with an injection cavity. After silica gel injection, no leak occurs; filling is performed by external injection of the silica gel, the silica gel can fill the whole defective cavity to be repaired, with no lead angle left.

Description

technical field [0001] The invention belongs to the field of medical devices and relates to repairing of skull base defects, in particular to a device for repairing skull base defects. Background technique [0002] With the development of neurosurgical equipment and technology, a large number of skull base operations can be carried out, but minimally invasive surgery at the expense of skull base bone, due to the deep surgical site and narrow operating space, large skull base surgery often occurs after surgery. Defects of bone, dura mater, and local soft tissue in the operative field increase the possibility of postoperative complications such as cerebrospinal fluid leakage, meningitis, pneumocranium, and encephalocele. Cerebrospinal fluid leakage is the most common complication after extended transsphenoidal surgery. Cerebrospinal fluid leakage is a common complication after skull base surgery, especially extended transsphenoidal surgery. In order to prevent cerebrospinal fl...

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a device for repairing skull base defects, which solves the problems of slow repair speed of existing devices, exposure of cerebrospinal fluid and other postoperative complications after repair

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