Bone wax spreading device

Abstract

The invention relates to a bone wax spreading device. The bone wax spreading device includes a grip rod, a first spreading head and a second spreading head, wherein the grip rod is provided with a first end and a second end opposite to the first end, and includes a grip section, the grip section is arranged between the first end and the second end, and is suitable for gripping by a doctor, and thefirst spreading head is of a shape of the frustum of a triangular prism, and includes a first working surface, a second working surface and a first joint surface; and the first joint surface of the first spreading head is connected to the first end of the grip rod, the second spreading head is of a disc shape, and includes a circular third working surface and a second joint surface opposite to the third working surface, and the second joint surface is connected to the second end of the grip rod. The first working surface and second working surface of the first spreading head and the third working surface of the second spreading head correspond to the physiological characteristics of bone which needs spreading of bone wax separately.

Description

technical field [0001] The present application relates to a medical device, in particular a bone wax applicator for hemostasis in posterior cervical surgery. Background technique [0002] In orthopedic surgery, bleeding often occurs on the cancellous bone surface, and the usual practice is to apply bone wax to the bone surface to stop the bleeding. The traditional method is to knead the hard bone wax to a soft state, and then apply it to the bleeding bone surface with fingers, gauze or stripper. However, when the bone surface is uneven, the effect of smearing and hemostasis is often poor, and it is easy to scratch the operator's gloves and fingers, increasing the chance of contamination. In addition, there is another way to use curved forceps to hold a special gauze "peanut ball", spread bone wax on the gauze, and then apply it. But because the gauze is not firmly fixed, it is very easy to fall off, resulting in cumbersome operation and low operating efficiency. Posterior...

AI Technical Summary

Problems solved by technology

However, because the gauze is not firmly fixed, it is easy to fall off, resulting in cumbersome operation and low operation efficiency

Posterior cervical laminoplasty is one of the most common cervical spine operations. During the operation, rongeurs or drills are used to dig out several bone grooves between the cervical lamina and the lateral mass (necessary to expand the spinal canal space). However, because the shape of the bone groove is relatively special (usually V-shaped) and deep, it is difficult to seal the bleeding point by applying bone wax with fingers, gauze or stripper, which not only reduces the operation speed, but also prolongs the operation time. time, increased intraoperative bleeding, and more importantly, the cervical spinal cord is next to the bone groove. Repeated operations of applying bone wax many times may accidentally injure the cervical spinal cord or nerve roots, resulting in irreparable consequences such as nerve damage.

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