Minimally invasive brain surgery cannula and/or endoscope fixer

Abstract

The invention relates to a minimally invasive brain surgery cannula and / or endoscope fixer. The fixer comprises a base fixedly connected with a skull and a hollow cylinder, wherein the bottom of the cylinder is rotationally connected with the base; the top of the hollow cylinder is provided with an arc plate, the arc plate is one part of the surrounding wall of the other hollow cylinder, the axisof the arc plate is parallel to the horizontal plane, and two sides of the top surface of the hollow cylinder are provided with arc surfaces matched with two sides of the arc plate; and the arc plateand the base are provided with an arc plate through hole and a base through hole for allowing an minimally invasive brain surgery cannula and / or an endoscope to pass. During surgery, the fixer can stably and accurately fix the position of the minimally invasive brain surgery cannula or the endoscope for long time in each direction, each angle and different depths in the three-dimensional space inthe brain; and the fixer can slightly adjust the endoscope at the same time of fixing the minimally invasive brain surgery cannula, and can meet the minimally invasive brain surgery cannulas of different diameters and shapes and different surgery requirements.

Description

technical field [0001] The present invention relates to sleeves and / or endoscopic fixators for minimally invasive brain surgery. Background technique [0002] At present, during the use of cannula in minimally invasive brain surgery such as neurosurgery, the cannula is generally held by an assistant, but due to the instability and error of the human hand itself, it is not only easy to cause the cannula to swing during the operation, and it is easy to damage, Cutting important structures such as brain tissue will aggravate the damage of brain tissue; and it is difficult for the operator to directly control and fine-tune the position of the minimally invasive brain surgery cannula, which affects the efficiency and effect of the operation; therefore, the operation is highly dependent on the operator and assistant. The degree of cooperation makes it difficult for the operator to quickly and directly control the minimally invasive brain surgery cannula and expose the required sur...

AI Technical Summary

Problems solved by technology

[0002] At present, during the use of cannula in minimally invasive brain surgery such as neurosurgery, the cannula is generally held by an assistant, but due to the instability and error of the human hand itself, it is not only easy to cause the cannula to swing during the operation, and it is easy to damage, Cutting important structures such as brain tissue will aggravate the damage of brain tissue; and it is difficult for the operator to directly control and fine-tune the position of the minimally invasive brain surgery cannula, which affects the efficiency and effect of the operation; therefore, the operation is highly dependent on the operator and assistant. The degree of cooperation makes it difficult for the operator to quickly and directly control the minimally invasive brain surgery cannula and the required surgical field according to the actual needs of the operation.

[0003] Because there is no cannula fixing device in the prior art, the position of the minimally invasive brain surgery cannula cannot be fixed stably, accurately and for a long time in all directions and different depths of the three-dimensional space in the brain, so it is difficult to stabilize the minimally invasive brain surgery cannula, Accurate, long-term fixed on the required surgical site, can not accurately control the working depth and working direction of the cannula, can not maintain a stable minimally invasive surgical field during the operation, which brings certain practical difficulties to the operation and affects the operation Accuracy and Surgical Efficiency

At present, there is no device that can fix the cannula and endoscope (such as ventriculoscope, neuroendoscope, etc.) at the same time. When the endoscope is operated in the cannula, it needs to be held by the operator and / or assistants. The instability of the cannula (the assistant fixing the cannula is unstable, and the operator is not stable holding the endoscope), the endoscope and the minimally invasive brain surgery cannula are easy to shake during the operation, and it is difficult for the two to achieve unified and coordinated movements, so they cannot be used in Maintaining a stable surgical operation field during the operation brings certain practical difficulties to the operation, making it difficult to perform fine endoscopic brain surgery

[0004] Although there is currently a device that can fix the endoscope alone, it cannot fix the cannula for minimally invasive brain surgery at the same time, and the existing endoscope fixation device is large in size, complex in structure, and expensive. Or on the base, it is inconvenient in actual use and the operation is not flexible

At present, there is no device that can fix the cannula, endoscope and neurosurgery navigation positioning frame at the same time. If a neurosurgery navigation system is used, an additional navigation and positioning head frame is required, resulting in large surgical errors and long preparation time

Images