CN2244379Y

CN2244379Y - Simple locator for body surface of skull

Info

Publication number: CN2244379Y
Application number: CN 95220917
Authority: CN
Inventors: 王�忠; 崔增学; 杨方
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-09-07
Filing date: 1995-09-07
Publication date: 1997-01-08
Anticipated expiration: 2005-09-07

Abstract

The utility model relates to a simple locator for a body surface of a skull. The utility model is composed of a support frame and a measuring scale. The utility model is characterized in that a central shaft of the divider type support frame with two support legs is fixedly connected with an upright screw type head support top cover; the upper end of a screw is provided with a manual rotating handle; the outer part of a nut is sheathed with a disc for measuring angles and the sliding measuring scale provided with an expansion joint; the lower end of the sliding measuring scale is provided with a scribing rod. The utility model has the advantages that the orientation is exact and easy, the utility model is especially suitable for middle and small pathological changes, an exact orientation can be obtained only through a separation angle alpha of a center of the pathological change and a midsagittal plane, and a CT slice number n, the orientation problem of a body surface combined with the pathological changes of a CT skull is solved, and the utility model is suitable for the orientation of the body surface of the skull for the skull pathological changes.

Description

Simple and easy head body surface localizer

This utility model belongs to the medical surgery apparatus, relates to the body surface localizer of a kind of definite cranium cerebral lesion position.

In recent years, use CT the level diagnosis of cranium cerebral lesion is obtained remarkable progress.But the neurosurgical doctor can often run in conjunction with CT in clinical position, accurately locatees the problem of lesion locations in craniocerebral operations.At present, the stereo brain orienting instrument of employing is the applying three-dimensional location, and the instrumentation more complicated is difficult to popularization and application.

The purpose of this utility model is, design and produce a kind of easy head body surface localizer, utilize the angle of the front and back warp of the pathological changes aspect (aspect is counted n) of CT and this aspect and pathological changes centrage to determine the position of pathological changes place head body surface, to instruct the carrying out of next step operation.

Simple and easy head body surface localizer of the present utility model is made up of support and scale, it is characterized in that, the place, axis of centres position of two foot supports of divider formula is fixedly connected with vertical screw head rest top cover, and the screw rod upper end is provided with manual rotating handle; Nut overcoat is equipped with angle measurement scale and walk scale, and walk scale is provided with telescopic joint, and the lower end is provided with scribing rod.

Using method of the present utility model is: during CT examination that cranium cerebral lesion patient carries out, on the CT of pathological changes aspect photo, can mark required front and back warp before operation, and the angle α of warp and pathological changes centrage before and after measuring; Line by paropia and external auditory meatus, mark two-end-point A, the B of the front and back warp of benchmark aspect at patient's head body surface, corresponding fixedly head body surface localizer two legs are at this terminal A, B place, and with support along median sagittal plane fixing head jacking lid, guarantee that promptly the angle measurement scale parallels with the benchmark aspect; Is center of circle rotation with walk scale with angle measurement scale center O, and the scribing rod motion track of its lower end is the body surface projection of benchmark aspect; The height of place, pathological changes center horizontal bedding will be moved on on the walk scale, when rotated, the motion track of scribing rod is the body surface projection of pathological changes aspect, the joining of this projection and OA, OB line is warp two-end-point a, b before and after the pathological changes aspect, stent foot is individually fixed on a, the b, the same oab face that keeps is positioned at median sagittal plane, walk scale identical α angle from the C T photo of one of median sagittal plane rotation and pathological changes aspect, the body surface projection joining of itself and pathological changes aspect is promptly indicated the body surface projection at pathological changes center.In addition, the repeatable operation on some aspects that pathological changes takes place that uses the same method can mark the accurate scope of big pathological changes at body surface.

The utility model has the advantages that: make simple and easy head body surface localizer by oneself, be applicable to the accurate location of cerebral hemisphere occupying lesion, determine accurate body surface position, instruct and determine brain abscess, hypertensive cerebral hemorrhage, cystic tumor site of puncture less than 3 centimetres of minute lesions; Determine the body surface scope of big pathological changes, help location of operation.Solved body surface orientation problem, greatly improved the accuracy and the reliability of operation, avoided opening the skew of otch and diseased region in the cranium art, reduced the pair of cerebral tissue is damaged in conjunction with CT cranium cerebral lesion.By the clinical practice to this localizer, characteristics are: accurate positioning especially is suitable for medium and small pathological changes; Locate easyly, only utilize pathological changes center and median sagittal plane angle α and CT aspect to count two parameters of n, can reach accurate location; Be applicable to the accurate location of cranium cerebral lesion at the head body surface.

Below in conjunction with drawings and Examples, the utility model will be further described:

Fig. 1 is the pathological changes aspect sketch map of CT examination before the cranium cerebral lesion patient art

Fig. 2 is the organigram of simple and easy head body surface localizer

Fig. 3 is the vertical view of simple and easy head body surface localizer

Fig. 4 is the walk scale organigram of simple and easy head body surface localizer

As seen from the figure, simple and easy head body surface localizer of the present utility model is made up of support and scale, it is characterized in that, the place, axis of centres position of two foot supports 1 of divider formula is fixedly connected with vertical screw head rest top cover 2, and screw rod 3 upper ends are provided with manual rotating handle 4; Nut overcoat is equipped with angle measurement scale 5 and walk scale 6, and walk scale is provided with telescopic joint 7, and the lower end is provided with scribing rod 8.Among the figure, A, B are the body surface end points of the front and back warp of benchmark aspect, and a, b are the body surface end points of the front and back warp of pathological changes aspect.

Claims

1, a kind of simple and easy head body surface localizer is made up of support and scale, it is characterized in that, the place, axis of centres position of two foot supports of divider formula is fixedly connected with vertical screw head rest top cover, and the screw rod upper end is provided with manual rotating handle; Nut overcoat is equipped with angle measurement scale and walk scale, and walk scale is provided with telescopic joint, and the lower end is provided with scribing rod.