Wire retractor for endoscopic skull base surgery and method

Abstract

The invention discloses a wire retractor for endoscopic skull base surgery and a method. The wire retractor comprises a retractor body, a handle is fixed to one end of the retractor body, the other end of the retractor body is bent to a hooking part which forms an acute angle or a right angle with the retractor body so as to achieve traction zone organization, the portion, close to the handle, of the retractor body is bent at a set angle, and the handle and the the hooking part are located on the same side or the two sides of the retractor body; due to the fact that the portion, close to the handle, of the retractor body is bent at the set angle, limited operating channel space in the surgery is given to an endoscope and surgical instruments of a surgeon as far as possible while the exposed surgery field is fully pulled, and the problem that an assistant and the instrument held by the chief surgeon interfere with each other is solved; the length of the retractor body is limited, the wire retractor can easily reach the deep of the middle and posterior skull base and the lateral skull base, the holding hand of the assistant can keep a certain distance with the mouth and nose of a patient while the exposed surgery field is fully pulled, and the situation that operation of the chief surgeon is influenced is avoided.

Description

technical field [0001] The invention relates to endoscopic skull base surgery, in particular to a retractor and method for endoscopic skull base surgery. Background technique [0002] In recent years, in addition to traditional microscopic surgery, endoscopic skull base surgery has gradually been recognized and is considered to be the development trend of skull base surgery. The emergence of this situation is mainly due to the rapid development of endoscopic technology and equipment, the popular concept of minimally invasive surgery, and the rapid development of skull base anatomy and imaging. Although small, the endoscope provides physicians with a clear view of different anatomical regions of the skull base. Nowadays, the scope of the skull base that can be reached through the nasal cavity, oral cavity, etc. under the endoscope is increasing, and half of the skull base tumors can be resected endoscopically. Such as endoscopic transnasal or transoral resection of skull ba...

AI Technical Summary

Problems solved by technology

[0005] 1) They are all straight retractors with no angle, so it is not easy to fully pull the tissue to both sides, and it is easy to "press" instead of "pull". The compression of important tissues at the bottom may lead to adverse consequences such as edema, injury, and bleeding, and the straight hook is easy to fall out during the operation. Once it falls out, it needs to be pulled again, prolonging the operation time

At the same time, during the operation, it is easy to cause the assistant and the operator's instruments and endoscopes to interfere with each other, and "instrument fights" occur, which affects the smooth progress of the operation;

[0006] 2) The length is short, which is not suitable for the depth of the skull base, especially for endoscopic surgery in deep anatomical areas and thick tissues, which is laborious and easy to slip, such as endoscopic peroral skull base / cranial neck junction lesion resection

[0007] 3) The end of the hook is thin and narrow, and holding it for a long time will easily lead to the overload of the assistant's fingers, which will make the assistant's hands overtired and increase the labor intensity

[0008] 4) The existing straight retractor is easy to delay the operation process

In general, patients undergoing skull base surgery are operated under general anesthesia. The use of straight retractors prolongs the operation time, which not only causes the patient to lie down for a long time and damage the patient's body, but also the amount of anesthesia determined according to the operation time. increase, which is not conducive to the postoperative recovery of patients

Images