Line drawing device for craniocerebral operation

Abstract

The invention discloses a line drawing device for a craniocerebral operation. The line drawing device comprises a line drawing device box body and a hand grab device which are integrally connected; arc-shaped grooves are formed in the bottom of the hand grab device, and a plurality of cavities are formed in the line drawing device box body; the cavities comprise the inner ruler cavity, the positioning cavity and the pigment cavity which are separated from each other through baffles; long-strip-shaped openings are formed in the surface of the center of an inner ruler, and tie bars are arrangedbetween the long-strip-shaped openings; a cotton thread is fixed into the positioning cavity through an elastic steel wire; a second opening is formed in the tip, on one side of the pigment cavity, ofthe upper end of the line drawing device box body; the cotton thread is fixed into the positioning cavity through the elastic steel wire; and the head end of the cotton thread is connected with a suction cup. Through the left-side inner ruler, an incision of the craniocerebral body surface operation is measured, according to the measured result, the incision of the body surface operation is positioned through automatic inking of the cotton thread, thus accurate positioning is achieved, and the situation that the operation effect is influenced due to the positioning deviation is avoided.

Description

technical field [0001] The invention relates to a scriber for craniocerebral surgery, which belongs to the technical field of medical instruments. Background technique [0002] In surgery, preoperative intracranial lesion localization is very important, it is related to the design of preoperative surgical incision, intraoperative lesion localization, determination of lesion range, etc. Due to the lack of specialized cranial positioning tools in many grassroots hospitals or the lack of experience of surgeons, there have indeed been cases of deviation between the surface surgical incision and the position of intracranial lesions during craniocerebral surgery, which will inevitably affect the effect of the operation, and even affect the The success or failure of surgery. [0003] Nowadays, doctors generally draw lines with bare hands based on experience, and sometimes use a tape measure or ruler as a marking ruler for craniocerebral surgery. If you have long-term experience, ...

AI Technical Summary

Problems solved by technology

Due to the lack of specialized cranial positioning tools in many grassroots hospitals or the lack of experience of surgeons, there have indeed been cases of deviation between the surface surgical incision and the position of intracranial lesions during craniocerebral surgery, which will inevitably affect the effect of the operation, and even affect the success or failure of surgery

[0003] Nowadays, doctors generally draw lines with bare hands based on experience, and sometimes use a tape measure or ruler as a marking ruler for craniocerebral surgery. Long-term experience, if the lack of experience can cause the line segment to be skewed, the position is inaccurate, and the error is large, which will affect the surgical effect

[0004] For the current patent No. "CN201020111319.9", the patent name is "Craniocerebral Surgery Positioning and Marking Ruler", there is a visible angle bisector between the vertex and the hypotenuse of the right angle of the isosceles right triangle; There is a curved notch on the hypotenuse of the isosceles right-angled triangular plate. The arc of the arc notch is adapted to the arc of the sagittal midline on the surface of the human skull. The angle bisector divides the arc into the front arc and the back arc. , the front arc is adapted to the arc of the sagittal midline on the front surface of the human skull; on the outside of the front arc and back arc of the isosceles right-angled triangle, there are scale lines perpendicular to the arc indicating the length, two-phase The distance between the intersection points of adjacent scale lines and arc lines is 1mm. The front arc line, the back arc line and the scale line constitute the front arc ruler and the rear arc ruler. There are numbers indicating the length at the positions corresponding to the scale lines. These numbers representing the scale line of the arc ruler are measured from the angle bisector. This patent overcomes the distortion of the marked line segment caused by the doctor's visual inspection of the freehand line or the auxiliary use of a tape measure or a ruler. The position is imprecise and the error is large; however, its structure is also relatively independent. Its overall structure is a regular semicircle, and it uses scale markings. For some special cases of irregular shapes of the brain, it cannot be accurately performed. Therefore, there will be deviations between the surface surgical incision and the position of the intracranial lesion in brain surgery. The overall structure is still measured by the traditional measuring ruler in essence, which has certain limitations.

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