Craniocerebral lumen stepless adjustment expansion device

Abstract

A craniocerebral lumen stepless adjustment expansion device comprises an elastic expansion sheet; the elastic expansion sheet has a first form and a second form under the limitation of external constraints, in the first form, the elastic expansion sheet is a multilayer tightly-curled cylinder, and in the second form, the elastic expansion sheet is a curled cylinder; the number of curling turns ofthe second form is smaller than that of the first form; the expansion sheet can be controlled to expand to the second form from the first form. By adopting the mode that the elastic expansion sheet isgradually released and expands from the tightly curled state under the action of internal stress, stepless expansion of brain tissue in a craniocerebral operation is achieved, and the craniocerebrallumen stepless adjustment expansion device has the advantages of being simple in structure, easy to operate and the like and achieves adjustment and control of a craniocerebral operation channel. Thecraniocerebral lumen stepless adjustment expansion device causes little damage to the brain tissue, guarantees the safety and reliability of the operation channel, greatly reduces iatrogenic damage inthe operation process, relieves the workload of doctors and the operation difficulty and greatly improves the prognosis of patients.

Description

Technical field [0001] The invention belongs to the field of medical instruments and relates to a craniocerebral lumen stepless adjustment and expansion device applied to craniocerebral surgery. Background technique [0002] Intracranial hematomas, tumors and other intracranial lesions have the characteristics of deep location and proximity to important functional areas, which lead to complicated surgical approaches in the internal brain area, difficult surgical procedures, high risks, difficult bleeding in the surgical area, and low total resection rate, especially The brain tissue is very immature, and it is easy to cause iatrogenic injury during the operation. During intracerebral surgery, clinical surgical approaches such as cortical fistula are often needed to reach the deep lesion area. This process will inevitably cause iatrogenic brain tissue damage due to the passage of instruments. [0003] Existing invention patent CN106994027 discloses a brain tissue expansion device, ...

AI Technical Summary

Problems solved by technology

However, the structural design of the device is unreasonable, and it is easy to cause damage to the brain tissue during the insertion and removal process; and the operation is complicated, does not have the function of stepless adjustment, and cannot quantitatively adjust the size of the cortical expansion area

Images