RU179859U1 - DEVICE FOR TRAINING DOCTORS IN THE TECHNIQUE OF EXECUTION OF THE BLOCK OF THE SPINAL NERVES OF THE LUMBAR DEPARTMENT - Google Patents

Abstract

The utility model relates to medicine, in particular, to the field of neurosurgery and can be used to develop manual skills of puncture interventions on the structures of the lumbar spine (blockade of the spinal nerves). The purpose of the utility model is to provide optimal conditions for practicing manual skills and to create the possibility of multiple long the use of the device, the ability to record the fact of getting a puncture needle into the intervertebral foramen. The goal is achieved by the fact that the device for training Physicians perform the art closures lumbar spinal nerves of a human spine comprises the anatomical preparation, which is a block of bone and connective tissue structures of the lumbar spine with the dural sac and spinal nerves, manufactured by polymeric embalming and placed into an opaque silicone shell simulates paravertebral soft tissues. Contact plates are fixed to the ventral surface of the medial part of the transverse processes of the vertebrae in the projection of the exit of the spinal nerves from the intervertebral foramen using screws, which are part of the electric circuit, which also includes a battery, a lamp, a puncture needle, and the puncture needle is made with the possibility of closing the electric circuit when blocking and turning on the lamp to record the fact of getting into the intervertebral foramen. 2 ill.

Description

The utility model relates to the field of medicine, in particular, to the field of neurosurgery and can be used to develop manual skills of puncture interventions on the structures of the lumbar spine (blockade of the spinal nerves).

Known biomechanical simulator case novocaine blockade of limb segments, containing simulators of the tubular bone, muscle tissue and skin of the limb, as well as a syringe with a metal needle, in which the simulators of muscle tissue are filled with elastic porous material and placed in separate muscle cases, to the surfaces of which are attached elastic conductive elements, the simulator of the tubular bone has a shell of conductive material, and the conductive elements of the simulator of the tubular bone and muscle the cases form normally open contact pairs that are closed upon injection of a metal 2

a syringe needle, providing the inclusion of light and (or) sound indication (RF patent for PM No. 115539, G09B 23/28, publ. 04/27/2012).

The purpose of the utility model is to provide optimal conditions for developing manual skills and to create the possibility of multiple long-term use of the device, the ability to record the fact of a puncture needle entering the intervertebral opening.

The goal is achieved in that a device for teaching doctors the technique of performing blockade of the spinal nerves of the lumbar spine of a person contains an anatomical preparation, which is a block of bone and connective tissue structures of the lumbar spine with a dural sac and roots of the spinal nerves, made by polymer embalming and placed in an opaque silicone shell imitating paravertebral soft tissue. Contact plates are fixed to the ventral surface of the medial part of the transverse processes of the vertebrae in the projection of the exit of the spinal nerves from the intervertebral foramen using screws, which are part of the electric circuit, which also includes a battery, a lamp, a puncture needle, and the puncture needle is made with the possibility of closing the electric circuit when blocking and turning on the lamp to record the fact of getting into the intervertebral foramen.

In FIG. 1 shows a General view of the device.

In FIG. 2 circuit electrical circuit.

The device contains: an anatomical preparation, which is a block of bone and connective tissue structures of the lumbar spine (1) with a dural sac and roots of the spinal nerves, placed in an opaque silicone shell that mimics paravertebral soft tissues; contact plates (2) fixed with screws to the ventral surface of the medial part of the transverse processes of the vertebrae (3) and included in parallel or 3

serial electric circuit, the battery (4), lamp (5), and a puncture needle (6) also enter the electric circuit.

The device operates as follows: the spinous processes of the lumbar vertebrae are counted to the intended level of blockade. The puncture point is located 2-3 cm lateral to the spinous process at the level of its cranial margin. This point is projected to the place of exit of the lumbar nerve from under the transverse process of the corresponding vertebra. A needle for spinal anesthesia is inserted perpendicular to the surface of the device to a depth of about 3-6 cm until it stops in the transverse process of the vertebra. The transverse process is bypassed with a needle and it is advanced caudally 1.5-2 cm to the exit site of the spinal nerve, in which there is a contact plate (3) fixed with screws to the ventral surface of the medial part of the transverse process. When the blockade is correctly executed, the electric circuit closes and the lamp (2) turns on.

Claims (1)

A device for training doctors in the technique of performing blockade of the spinal nerves of the lumbar spine of a person, containing an anatomical preparation, which is a block of bone and connective tissue structures of the lumbar spine with a dural sac and roots of the spinal nerves, made by polymer embalming and placed in an opaque silicone shell impervious soft tissue; contact plates are fixed with screws to the ventral surface of the medial part of the transverse processes of the vertebrae in the projection of the exit of the spinal nerves from the intervertebral foramen, which are part of the electric circuit, which also includes a battery, a lamp, and a puncture needle, while the puncture needle is made with the possibility of closing the electric circuit during blockade and turning on the lamp to record the fact of getting into the intervertebral foramen.

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