Method of manufacturing device for demonstration of surgical accesses to posterior cranial fossa formations

FIELD: medicine.

SUBSTANCE: invention relates to medical models. Method includes visualisation of anatomic structures. For its realisation natural anatomical object is used, in which with latex mass, dyed to imitate blood colour, injection of artery and venous systems of brain vessel system is performed separately. Successively, skin flap, muscle-fascial structures and aponeurosis are moved apart above trepanation site. Mill hole of occipital and temporal bones is formed from which squama is resected. By means of semicircular cut is opened and drawn aside. Sections of cerebellum hemispheres substance are made detachable.

EFFECT: obtaining possibility to model close to real situation aimed at development of manual skills of neurosurgeons.

 

The invention relates to medicine, in particular to neurosurgery, normal and topographical anatomy, and can be used for training medical students and physicians surgical approaches for intracranial objects.

Known devices made of various materials, such as plastics, paper mache, or in the form of posters used in the learning process during the training of neurosurgeons. (The patent for useful model RU 45547. Published: 10.05.2005).

A disadvantage of the known devices is the inability of the simulation environment for the learner, close to real.

The purpose of the invention is to create a device that enables the development of the necessary manual skills neurosurgeons.

The objective is achieved by the fact that made the device for demonstration of surgical approaches to formation of the posterior cranial fossa by visualizing its anatomical structures, and as materials devices use natural anatomical object on which the latex by weight, dyed by the dye in the colour of blood, separately perform the injection of the arterial and venous systems vasculature, brain, consistently pushing the flap of skin, muscle and fascial structures and aponeurosis over the site trephination, form Presevo hole SATELEC is Oh and the temporal bones, from which resetinput scales, open semicircular cut and taken off to the side of the Dura, and the parts of the substance of the hemispheres of the cerebellum performs removable.

The method is implemented as follows.

As materials of the device use natural anatomical object on which the latex by weight, dyed by the dye in the colour of blood, separately perform the injection of the arterial and venous systems vasculature, brain, consistently pushing the flap of skin, muscle and fascial structures, the aponeurosis over the site trephination, form Presevo hole in the occipital and temporal bones from which resetinput scales, open semicircular cut and taken off to the side of the Dura, and the parts of the substance of the hemispheres of the cerebellum performs removable.

For training neurosurgeons practical skills of surgical interventions on the structures of the posterior cranial fossa is extremely important knowledge of anatomy and topography of this region. In particular, when retrosigmoid access to the structures of the posterior cranial fossa after skin incision, the aponeurosis is rendered scales occipital and temporal bones. Overlay prezioso holes and resection scales allow you to visualize the intracranial structures such as the hemisphere of the cerebellum, its vessels, the fourth geldose is. Further actions of the surgeon contribute to the inspection region of the cerebellopontine angle, internal auditory canal, etc.

Study and understand the techniques of the surgical approach, the assessment of its capabilities, the study of topographic-anatomic relationships of the structures of the posterior cranial fossa in the implementation of the relevant access is possible either with the direct presence at the time of surgical intervention in this area, either through natural anatomical preparation. The latter creates a real image of the surgical access with visualization of soft tissue structures, designated overlay prezioso holes, structures of the brain, blood vessels and cranial nerves.

We propose a device made by the method of polymeric embalming of natural anatomical object. Visualization of the structures of the posterior cranial fossa is achieved in stages. Pre-injection is performed latex by weight, dyed dye in the colour of blood, separate arterial and venous systems vasculature of the brain. A flap of skin, muscle and fascial structures, the aponeurosis over the site trephination apart. Formed Presevo hole, which is resection of the scale of the occipital and temporal bones in the required amount. Dura is opened by polyresinresin and aside. After discharge flap of Dura visualized intracranial structures of the posterior cranial fossa. If necessary, removed parts of the substance of the hemispheres of the cerebellum or the needle is injected to suboccipital lymphadenopathy puncture. The result is the demonstration of the place of formation of trepanation holes, structures of the posterior cranial fossa, open" when it is run, and their topographic-anatomical relationships.

A method of manufacturing a device for demonstrating surgical approaches to formation of the posterior cranial fossa, including its visualization of the anatomical structures, characterized in that use natural anatomical object on which the latex by weight, dyed by the dye in the colour of blood, separately perform the injection of the arterial and venous systems vasculature, brain, consistently pushing the flap of skin, muscle and fascial structures and aponeurosis over the site trephination, form Presevo hole in the occipital and temporal bones from which resetinput scales reveal poluokrugli cut and taken off to the side of the Dura, and the parts of the substance of the hemispheres of the cerebellum performs removable.



 

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