CN2341581Y

CN2341581Y - Simple dril skull positioner

Info

Publication number: CN2341581Y
Application number: CN98233126U
Authority: CN
Inventors: 李雪航; 杨晔; 李彦琴; 王凤云; 高贵民
Original assignee: SHAANXI ELECTRONIC CENTRAL HOSPITAL
Current assignee: SHAANXI ELECTRONIC CENTRAL HOSPITAL
Priority date: 1998-10-30
Filing date: 1998-10-30
Publication date: 1999-10-06
Anticipated expiration: 2008-10-30

Abstract

The utility model relates to a simple drill skull positioner for selecting a position of a drill hole before a drill skull hematoma suction operation. A protractor and a ruler form one end of a ruler, and one end of the ruler is fixed on the center of circle of the protractor and can rotate. The utility model is designed according to a simple geometric principle. The utility model has the advantages of simple structure, easy fabrication, convenient operation, and accurate and quick positioning. The utility model is suitable for being used in an acute cerebral hemorrhage drill skull suction operation. The utility model can also be used for the positioning of a brain surgery operation, the positioning of radiotherapy for a tumor in a brain, etc.

Description

Simple and easy brill cranium localizer

This utility model relates to a kind of measuring device that is used for diagnostic purpose, specifically, is a kind of preceding simple and easy brill cranium localizer of selecting the boring position of cranium intracerebral hematoma suction that bores.

Boring cranium intracerebral hematoma suction has been one of important method of acute cerebral hemorrhage, and the key of operation is to select boring position, i.e. location.Previously roughly there are two kinds of methods the location: a kind of is direct location under CT, though the accuracy height, time-consuming, effort, expense height; The 2nd, on the CT sheet, measure each value of maximum hemorrhage aspect by CT sheet and human body fixed proportion, in head part's indirect addressing, this method accurate positioning is relatively poor.

Simultaneously, according to retrieval, also find a kind of cranium brain puncture positioning rule (CN2183161Y), it has an angle square and vernier, a slide rule is arranged on the vernier, and the slide rule lower end also has the positioning rule that can slide relatively with it of a level, and the positioning rule face is provided with positioning through hole, structure is complicated, the manufacturing process trouble.

This utility model purpose provides a kind of easy location formality.Reach the brill cranium localizer of quick, accurate purpose.

This utility model design principle: head CT is to be baseline (following simple radical line) with OM line (being the line of earhole upper limb to paropia).The cerebral hemorrhage common site is the highest to be basal ganglia region.With the baseline is bottom line, and then on the CT lateral projection, the projection of basal ganglia region is fixed.Therefore, if be the center of circle, with the baseline diameter with the earhole, then the hemorrhagic focus at any position of cerebral hemisphere is projected on the CT lateral projection all that the available angle kilsyth basalt shows that the distance of hemorrhagic focus and earhole also can directly measurement on the line of earhole and hemorrhagic focus.

Baseline is on the CT sheet and be the same line on the human body, and length and human body physical length on same CT machine CT sheet often have fixed proportion.Maximum hemorrhage aspect hematoma center is converted into the human body physical length with this solid proportionate relationship then to the air line distance in the skull outside on the CT sheet so measure, and can draw the insertion depth that bores cranium rear sleeve pin.On dip stick, directly read the actual range of hematoma and earhole.

According to above theory, this utility model structure is:

A kind of cranium intracerebral hematoma that bores draws the preceding simple and easy brill cranium localizer of selecting the boring position of art.Constitute by a protractor (1) and a ruler (2), ruler (2) one ends are fixed on protractor (1) center of circle and can rotate, there is a translot in ruler (2) centre, and lower limb all is carved with scale on the translot, also is carved with one on the ruler (2) by the fixing center of circle and be parallel to the centrage of translot.

This utility model advantage is: it is by the simple geometry principle design, and is simple in structure, is easy to make; Easy and simple to handle, accurate positioning, rapid; Be suitable for the use that acute cerebral hemorrhage bores the cranium suction, also can be used for the location of tumour radiotherapy in brain outer operation location and the brain etc.

Accompanying drawing is this utility model structural representation.

Embodiment:

A kind of preceding simple and easy brill cranium localizer of selecting the boring position of cranium intracerebral hematoma suction that bores.Constitute by a protractor (1) and a ruler (2), ruler (2) one ends are fixed on protractor (1) center of circle and can rotate, there is a translot in ruler (2) centre, and lower limb all is carved with scale on the translot, also is carved with one on the ruler (2) by the fixing center of circle and be parallel to the centrage of translot.

Operational approach: on the CT lateral projection, the localizer center of circle is placed on the earhole shadow, the bottom is overlapping with baseline, rotating dip stick makes its centrage overlapping with the line that earhole arrives the hematoma center, observing its hematoma place angle will directly read the CT sheet from edge, dip stick hollow part left side and measure length, record also is scaled the human body physical length, place patient need bore cranium side temples localizer, the center of circle is over against earhole, the bottom is overlapping with baseline, and the pulling dip stick makes its angle identical with angle on the CT sheet, and want dip stick hollow part margo dexter to find out the actual human body length place labelling of sign, be herein and bore the cranium point.Bore cranium and attract trocar insertion depth, the maximum aspect hematoma of hematoma center is to the distance in the skull outside on the CT sheet from recording, and relation is calculated in proportion.

Claims

A kind of preceding simple and easy brill cranium localizer of selecting the boring position of cranium intracerebral hematoma suction that bores, it is characterized in that constituting by a protractor (1) and a ruler (2), ruler (2) one ends are fixed on protractor (1) center of circle and can rotate, there is a translot in ruler (2) centre, lower limb all is carved with scale on the translot, also is carved with one on the ruler (2) by the fixing center of circle and be parallel to the centrage of translot.