Absorbable dura mater anastomosis lock nail and lock nail holder

Abstract

The invention provides an absorbable anastomosis lock nail and a lock nail holder. The anastomosis lock nail is used for repairing sella or basis cranii cerebral dura mater when treating sella lesion via a nasal transsphenoidal approach in neurosurgery or when used for neuroendoscopic surgery. The absorbable anastomosis lock nail comprises a lock head and a lock cap, the head end of the lock head is a three-rhombohedral-surface structure, a raised stopping portion is arranged on the inner wall of the lock cap, and the lock head penetrates through the stopping portion to be fixedly clamped in the lock cap when locking. The structure of the head end of the nail holder corresponds to the structure of the anastomosis lock nail, and the nail holder is provided with fixing grooves corresponding to the lock head and the lock cap. By the aid of the absorbable anastomosis lock nail, artificial cerebral dura mater or autologous fascia and an incised dura mater residual edge of the skull base of a patient can be completely repaired, various complications including cerebrospinal fluid, intracranial infection and the like which are caused by a present traditional method of filling biological glue and various filling materials into sella and sphenoid sinus are obviously reduced, and simultaneously, death rate caused by the complications is reduced.

Description

technical field [0001] The invention relates to surgical tools in the medical field, in particular to dural locking nails and locking nails for repairing the dura mater at the bottom of the sella after transsphenoidal approach to the sella region and slope region after microsurgery or neuroendoscopic surgery. Nail holder. Background technique [0002] In the field of neurosurgery, space-occupying lesions of the skull base such as the sella region and the clivus region increasingly rely on the transsphenoidal minimally invasive approach to solve the problem, especially the application of neuroendoscopy in recent years, making this approach The clinical indications of this approach have been continuously broadened, and there is a tendency to develop keyhole combined neuroendoscopic surgery to solve all skull base lesions. However, this approach has always troubled the surgeon because it cannot be advanced and retreated as calmly as the surgery on the convex surface of the brai...

AI Technical Summary

Problems solved by technology

Cerebrospinal fluid rhinorrhea and otorrhea caused by trauma are more common clinically. Most of them have a good prognosis and can be cured by conservative treatment. However, some severe cases must be repaired by surgery. Most of the leaks of these patients are located at the base of the skull. It is difficult to carry out ordinary suturing operation. Like the above-mentioned saddle floor repair, biological glue should be used to bond tissue materials such as periosteum, fascia or fat, muscle, etc., but it caused a high recurrence rate of cerebrospinal fluid leakage. In order to reduce the recurrence rate of leakage, it is still necessary to consider the use of dura mater repair

Images