Retractor assembly and retractor

Abstract

The invention provides a retractor assembly and a retractor. The retractor assembly includes: a catheter extending from a proximal end side toward a distal end side; a retractor which is rolled in thecatheter in a rolled state, is restrained by the inner circumferential surface of the catheter and can slide along the catheter; and a retractor pushing-out component which is partially inserted intothe catheter and can push the retractor to slide from the near end side to the far end side along the catheter, wherein when the retractor is pushed by the retractor pushing-out component to be gradually disengaged from the catheter, the retractor is automatically expanded to gradually expand the tissue. According to the invention, extra surgical risks caused by the difference of retraction operation levels of operators can be avoided; even if the surgical site is deep in the tissue, the tissue can be smoothly retracted at low risk; and the conditions of glare and the like can be avoided.

Description

technical field [0001] The present invention relates to a medical device, and more particularly to a retractor assembly and a retractor, such as those used in brain surgery, for distracting brain tissue to expose the surgical site. Background technique [0002] Brain retractors are often used to remove tumors or blood clots inside the brain. At present, this brain retractor is mostly fixed or non-fixable stainless steel forceps and stainless steel plates. The use of these instruments must rely on the experience of the operator. If the experience is insufficient, the blood vessels, nerves, and cerebral cortex are often damaged due to the rapid expansion of the brain sulcus during the operation, or the insensitive technique of inserting the retractor may result in injury. Contusion of the brain tissue, what's more, complications such as hemorrhagic infarction will occur. [0003] In addition, the use of such instruments requires extensive incisions in the skull, increasing t...

AI Technical Summary

Problems solved by technology

The use of these instruments must rely on the experience of the operator. If the experience is insufficient, the blood vessels, nerves, and cerebral cortex are often damaged due to the rapid expansion of the brain sulcus during the operation, or the insensitive technique of inserting the retractor may result in injury. Contusion of brain tissue, and even complications such as hemorrhagic infarction

[0003] In addition, the use of this instrument requires extensive incisions in the skull, increasing the chance of infection and the patient's recovery time

[0004] Moreover, since these instruments are mostly distributed around the outside of the surgical site, sometimes these stainless steel appliances can also cause glare to the microscope, thereby affecting the operator's field of vision or distracting the operator's attention

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