SU1360705A1 - Arrangement for making subarachnoid hemorrhage - Google Patents

Abstract

The invention relates to medical technology. The purpose of the invention is to improve the accuracy of modeling. The device contains a surgical needle 2 with a thread 1 and a circular plate 3. The thread 1 passes through irobku 4, facing the tip of the needle 2, and the base to the plate 3. The device ensures the preservation of a closed space inside the skull. 4 il. (L

Description

The invention relates to medicine, in particular, to experimental neurosurgery, and can be used in an experiment on an animal to obtain subarachnoid hemorrhage in a closed borehole skull and develop treatment methods for it.

The purpose of the invention is to prevent the outflow of fluid from the cranial cavity and the associated decrease in the cerebrospinal fluid pressure when the cerebral blood vessel 10 ruptures.

FIG. 1 shows a device, side view; in fig. 2 - the same, view from the side of the needle; in fig. 3 - device inserted into the cranial cavity; in fig. 4 — device after a rupture of a blood vessel.

The device contains a thread 1 having at one end a curved surgical needle 2, at the other end - a circular flat plate 3 attached to the thread in the center

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primary intracranial hemorrhage. For this, thread 1 is passed through tube 11. In one hand, take tube 11 and press its end tightly along the thread 1 to the skin, with the other hand take the outer end of thread 1 and quickly pull the thread 1 to the stop. 1 breaks the blood vessel 9, causing direct intracranial bleeding into the cerebrospinal fluid from the damaged vessel. Together with the filament 1, the stopper 4 rushes through the oTBepctHe in the meninges, which passes through the opening in the tissues of the integument 5 and blocks them, and the plate 3 presses against the sheath 7 from the inside, preventing the passage of the stopper 5 to the outside and strengthening the sealing of the sheath 7 and cavity of the skull.

When the thread is pulled, the thread breaks the blood vessel and primary hemorrhage is achieved directly in the spinal cord, between needle 2 and lamina 3, the thread is pierced. 20 The fluid of the closed subarachnoid walks through the cone-shaped stopper 4 of the circulating space. Cone tube

pinnacle to needle 2 and base to plate 3. The distance between the tip

plugs 4 and lamina 3 are less than the soft tissue 5 covers of the skull 6, and the distance

the apex rushes behind the thread into soft tissues and clogs the hole in them, preventing the passage of fluid from both the cranial cavity to the outside and leaking into it

thirty

from the base of cork 4 to plate 3 of less than 25 of soft tissues. In addition, it has more than the radius of plate 3. Under the bone of the skull 6 are the brain membrane 7 and the brain 8 with a blood vessel 9 and a collection of blood 10 from an injured vessel 9. Position 11 indicated by the floor of the pipe, and 12 - a node on the vessel.

The device works in the following way.

Preliminary surgical incision of the soft integuments 5, trepanning of the cranial bone 6, dissection of the dura mater 7, insertion of needle 9 under the cerebral blood vessel 9 of the thread 1, tying of the thread between the needle 2 and the stopper 4 of the node 12 without dressing without tension or narrowing the lumen of the vessel 9, placing the sealing cone tube 4 and plate 3 under the brain membrane 7. In this case, plate 40 3 is placed to exclude pressure on the brain with the plate upwards connecting it with the thread 1, and plug 4 in the brain sulcus. The length of the thread 1 between samples35

a wide base, the stopper holds the plate in the working position, which tightly presses against the soft and dura mater and seals the opening in them. The space with the thread section between the stopper and the plate is filled with soft tissues, increasing the tightness of the cranial cavity. As a result, during the rupture of the vessel, the fluid in the cranial cavity is preserved, its outflow and liquor pressure drop are prevented, i.e., the conditions of the enclosed space inside the skull are close to natural with closed hemorrhages into the cranial cavity.

Claims (1)

Invention Formula A device for producing subarachnoid hemorrhage, comprising an elastic thread with a curved surgical needle at its end, characterized in that, in order to improve the accuracy of modeling A device for producing subarachnoid hemorrhage, comprising an elastic thread with a curved surgical needle at its end, characterized in that, in order to improve the accuracy of modeling 4 and the plate 3 are smaller than the radius of the plate 3, which makes it possible to place 8 45 on the brain by eliminating the decrease in the CSF pressure parts 3 and 4 separately. With a needle 2, the end of the filament of the ileum at the rupture of the cerebral circulatory is carried out through the puncture of the dura mater, the thread has attached at the end, and through the puncture of the soft tissue covers 5, the central plate closed in the center and the cone-boundaries of the cranial cavity outward. The wound is a visible cork, the top of which is directionally sewn up tightly. After healing along the thread to the needle and staying on the wounds in the planned terms, they get standing from the plate. primary intracranial hemorrhage. For this, thread 1 is passed through tube 11. In one hand, take tube 11 and press its end tightly along the thread 1 to the skin, with the other hand take the outer end of thread 1 and quickly pull the thread 1 to the stop. 1 breaks the blood vessel 9, causing direct intracranial bleeding into the cerebrospinal fluid from the damaged vessel. Together with the filament 1, the stopper 4 rushes through the oTBepctHe in the meninges, which passes through the opening in the tissues of the integument 5 and blocks them, and the plate 3 presses against the sheath 7 from the inside, preventing the passage of the stopper 5 to the outside and strengthening the sealing of the sheath 7 and cavity of the skull. When the thread is pulled, the thread breaks the blood vessel and primary hemorrhage is achieved, directly in the spinal cord, rushes after the thread into soft tissues and clogs the hole in them, preventing the passage of fluid from the cranial cavity to the outside and leaking into it. soft tissue besides having more soft tissue besides having more a wide base, the stopper holds the plate in the working position, which tightly presses against the soft and dura mater and seals the opening in them. The space with the thread section between the stopper and the plate is filled with soft tissues, increasing the tightness of the cranial cavity. As a result, during the rupture of the vessel, the fluid in the cranial cavity is preserved, its outflow and liquor pressure drop are prevented, i.e., the conditions of the enclosed space inside the skull are close to natural with closed hemorrhages into the cranial cavity. Invention Formula A device for producing subarachnoid hemorrhage, comprising an elastic thread with a curved surgical needle at its end, characterized in that, in order to improve the accuracy of modeling By eliminating the decrease in the cerebrospinal blood vessel when the cerebral blood vessel is ruptured, the thread has a circular plate attached at the end and a tapered stopper, the apex of which is directed along the thread to the needle and located at a distance from the plate.  r (fc ig2 9 P