Intracranial hematoma smash puncture needle limit device

Abstract

The invention discloses an intracranial hematoma smash puncture needle limit device which comprises an inner core and an outer sleeve. The outer sleeve wraps the periphery of the inner core, the upper portion of the inner core is of a columnar structure, an opening is formed in the side wall of the columnar structure, the side edge of the outer sleeve is provided with a positioning button and a positioning groove, a platform is arranged on the lower portion of the inner core, the inner diameter of the inner core close to the platform is slightly larger than that of a drill bit, reserved parts are spaces for discharging bone dregs and chips, a plurality of equally spaced grooves are formed in the outer surface of the inner core, and a plurality of projections corresponding to the grooves are arranged on the inner surface of the outer sleeve. According to the intracranial hematoma smash puncture needle limit device, drilling deviation can be decreased, peripheral tissues such as scalp and muscle can be effectively prevented from being dragged, the bone dregs are reserved in the limit device and cannot be scattered in a surgical area, visible interference in the surgical area is reduced, the outer sleeve is fixed onto the inner core through fasteners, the fasteners of the outer sleeve needs to being opened when the inner core is taken down, the inner core can be taken out from side surface without other tools, and the device is convenient and rapid to operate.

Description

technical field [0001] The invention relates to the technical field of surgical instruments, in particular to a limiting device for comminuting and puncturing needles for intracranial hematoma. Background technique [0002] The puncture needle for intracranial hematoma is a special medical device for minimally invasive removal of intracranial hematoma. During the operation, the operator holds an electric drill to drive the puncture needle for internal hematoma into the cranial cavity, and delivers it to the hematoma center for drainage and flushing until the hematoma is cleared. It is required that the crushed puncture needle for intracranial hematoma should not go directly to the center of the hematoma after penetrating the skull and dura mater, but stop the needle insertion deep under the dura mater, replace the electric drill and cover needle with a blunt-tip plastic needle core, and then slowly insert the needle At the hematoma, layer and distribute into the hematoma to ...

AI Technical Summary

Problems solved by technology

Its disadvantages are: when the crushed puncture needle for intracranial hematoma penetrates the skull, the breakthrough impact force is relatively large, which increases the possibility of brain tissue damage; Injuries that prevent wounds from healing

[0004] Defects of the rubber pad: 1. The drill bit cannot be positioned on the skull, and the high-speed rotating drill bit is prone to displacement deviation when it just touches the skull, causing unnecessary damage to the patient; 2. During the drilling operation, the drill bit is easy to drag the surrounding epidermis, muscles, etc. tissue, heat damage occurs, eventually leading to scalp tissue necrosis, and the wound cannot heal; 3. Bone residue is easy to scatter; 4. It is difficult to remove the rubber pad, which delays the operation time

[0005] Lock form defects: 1. The drill bit cannot be positioned on the skull, and the high-speed rotating drill bit is prone to displacement deviation when it just touches the skull, causing unnecessary damage to the patient; 2. During the drilling operation, the drill bit is easy to drag the surrounding epidermis, muscles, etc. 3. The bone residue is easy to scatter; 4. The structure of the limit device is complicated, and the stability of the limit is not good. When removing it, two locks need to be cut with scissors. button, the operation is cumbersome, and the operation time is delayed

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