Adjustable Omnidirectional Brain Tissue Retractor

Abstract

The invention discloses an adjustable all-directional brain tissue retractor which comprises a sleeve assembly and a framework, wherein the sleeve assembly comprises a shank and an inner barrel; an opening is formed in the upper end of the inner barrel, and the lower end of the inner barrel is closed and is semispherical; a plurality of small through holes are formed in the lower end of the inner barrel and run through the inner barrel from inside to outside; the shank is fixed on the outer surface of the upper end of the inner barrel; the framework comprises a framework ring and a spiral spring; continuous clamping slots are formed in the framework ring; the head end of the spiral spring is fixed on the framework ring; the tail end and the head end of the spiral springs are located at the same end; the tail end of the spiral spring is in a movable state relative to the framework ring; the inner barrel is inserted into the spiral spring of the framework, and the lower end of the inner barrel penetrates through the spiral spring; the size of the spiral spring is enlarged or narrowed depending on the fact that the tail end of the spiral spring is clamped into the clamping slots in different positions of the framework ring; a transparent elastic material layer is attached to the surface of the spiral spring. The adjustable all-directional brain tissue retractor can freely adjust the retraction size of an operation channel and realize 360-degree retraction, and is small in brain tissue damage.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to an adjustable omnidirectional brain tissue retractor. Background technique [0002] The traditional brain tissue retraction and the establishment of the surgical channel mainly rely on the brain pressure plate to use the anatomical structure of the cranium to retract the brain tissue, mainly relying on the professional skills and experience of the operator. Moreover, in the process of retracting brain tissue, it is easy to cause damage to cerebral blood vessels and nerves, and brain stretch injuries can be seen everywhere. After retracting, due to the creep characteristics of brain tissue, the expanded channel is easy to shrink and become smaller, which affects the operation. Direct retraction using a brain compression plate requires a large bone window for surgical operations, which has a large trauma, is prone to infection, and takes a long time for the patient to recov...

AI Technical Summary

Problems solved by technology

[0004] The use of the pressure sensor in the above-mentioned patent realizes that when the brain compression plate retracts the brain tissue, the retraction pressure of the brain compression plate can be adjusted, but when the brain compression plate retracts the brain tissue, it needs to be retracted with the help of multiple brain compression plates, resulting in time-consuming and troublesome operation , and cannot be retracted 360 degrees, the brain pressure plate may cut the brain tissue and cause damage

In addition, for the existing size-fixed brain tissue retractor, it cannot freely adjust the retraction size of the brain channel according to the surgical requirements; the initial brain channel must be as large as the retractor, which will inevitably result in brain tissue removal or excessive retraction. cause major damage

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