CN2220237Y

CN2220237Y - Cranium occupy set rule

Info

Publication number: CN2220237Y
Application number: CN 95210556
Authority: CN
Inventors: 黄正华; 刘长文; 方先业
Original assignee: 黄正华
Priority date: 1995-05-09
Filing date: 1995-05-09
Publication date: 1996-02-21
Anticipated expiration: 2005-05-09

Abstract

The utility model relates to an auxiliary positioning ruler in an operation according to a CT diagnosis images, which is characterized in that the utility model comprises a measuring ruler, a support rod, a support arm and a clamping plate. The support rod and the support arm are fixed together and form a 'T' shape, one side of the measuring ruler forms a circular arc shape, and the measuring ruler is connected with the support rod and can move along the support rod; one section of two L'-shaped clamping plates is embedded in the sliding groove of the support arm, and the clamping plate can make an occupying position ruler fixed on the head. Both sides of the measuring ruler and the support rod are marked with scales, the occupying positioning ruler can determine the position relation between focus and cranial surface according to the CT images to make the operation accurate, and the cerebral tissue damage is reduced.

Description

The intracranial mass lesion positioning rule

This utility model relates to a kind of assist location chi during according to the operation of CT diagnosis picture.

When utilizing the CT sheet, need utilization CT sheet determine focus and the corresponding locus of cranium table to the patient diagnosis of cranium disease of brain and operation.Useful stereotaxy of present locate mode and employing sieve plate positioning rule location.Stereotaxy location is more accurate, but the structure of stereotaxis device is complicated, operates more loaded down with trivial detailsly, and patient's misery is bigger.Sieve-board type positioning rule structure is single between, uses more generally at present, but it can't be fixed at head during sieve plate positioning rule location, and artificial error is so just arranged, and makes the location inaccurate, especially hour in hematoma or abscess, and the difficult intracavity that accurately penetrates.

The purpose of this utility model is to provide a kind of can fix, locate intracranial mass lesion positioning rule more accurately at head.

This utility model is realized by following technical scheme:

This intracranial mass lesion positioning rule by gage 10, cradling piece 4, support arm 2, and clamp clip 1 form, 2 of cradling piece 4 and support arms are affixed and be " T " font, one side of gage 10 is circular-arc, one groove 11 is arranged on the cradling piece 4, a gage 10 and a connecting rod 6 join, connecting rod 6 stretches in the groove 11 fixing by the screw 7 that is through on the cradling piece 4, support arm 2 is provided with chute 12, two clamp clips 1 are " L " shape, fixing in one section embedding chute 12 of clamp clip 1 by the screw 3 that is through on the support arm 2, be printed on size scale on the two sides of gage 10 and the cradling piece 4.

During use, 0 scale on the cradling piece 4 is aimed at 0-M line (adjoining) of head part outward to the external auditory meatus line, be close to the forehead and the occipitalia of the number of people by clamp clip 1, make this positioning rule be fixed on people's head, after determining the height of gage 10 according to the CT picture by the scale on the cradling piece 4, the circular arc limit of gage 10 is leaned against people's head, make two summits on circular arc limit aim at the sagittal line of head, can determine position between focus and cranium table by the size scale on the gage 10.

This utility model is simple in structure, accurate positioning, easy to operate.

Description of drawings:

Fig. 1 is the front view of this utility model one embodiment;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the right view of Fig. 1.

Below in conjunction with drawings and Examples this utility model is advanced an explanation.

This positioning rule can adopt materials such as aluminium alloy, rustless steel or rigid plastics to make.Connecting rod 6 is connected with one " U " shape card 9 with the end that gage joins, and gage embeds in " U " shape card 9 and fixed by the screw that is through on " U " shape card 9.Vary in size according to each human head, or the vertical footpath of the head of CT sheet different aspects is different with transverse diameter, can be equipped with the different gage of a plurality of circular arcs limit diameter, selects for using.Clamp clip 1 unclamps screw 8 after this occupy-place positioning rule is clamped in people's head, and gage 10 is removable, is convenient to make the most close head in circular arc limit.

According to the characteristics of CT picture, on cradling piece 4, be drilled with the screwed hole 5 that communicates with groove 11 from the every interval 1cm of 0 scale, screw 7 is spun on the screwed hole 5, and each screwed hole 5 can be determined a height and position of gage.Connecting rod 6 can vertically move in groove 11, to regulate the position of gage 10 and human head.As shown in Figure 2, on the two sides of gage 10, be printed on size scale.0 scale of this size scale is from a summit A (or B) on circular arc limit, and promptly 0 graduation mark overlaps with a summit A (or B) on circular arc limit along long line.During measurement, make that line overlaps with the sagittal line of head between the two summit AB on circular arc limit, and make a summit A (or B) on circular arc limit be close to head,, can determine position between focus and cranium table by the scale on the gage 10 according to picture.

Claims

1, the intracranial mass lesion positioning rule, it is characterized in that: by gage (10), cradling piece (4), support arm (2), and clamp clip (1) is formed, affixed and be " T " font between cradling piece (4) and support arm (2), one side of gage (10) is circular-arc, one groove (11) is arranged on the cradling piece (4), gage (10) joins with a connecting rod (6), connecting rod (6) stretches in the groove (11) fixing by the screw (7) that is through on the cradling piece (4), support arm (2) is provided with chute (12), two clamp clips (1) are " L " shape, fixing in one section embedding chute (12) of clamp clip (1) by the screw (3) that is through on the support arm (2), be printed on size scale on the two sides of gage (10) and the cradling piece (4).

2, according to the described intracranial mass lesion positioning rule of claim 1, it is characterized in that: connecting rod (6) is connected with one " U " shape card (9) with the end that gage (10) joins, and gage (10) embeds in " U " shape card (9) and fixes 7 by the screw (8) that is through on " U " shape card (9).

3, according to the described intracranial mass lesion positioning rule of claim 1, it is characterized in that: go up at cradling piece (4) and be drilled with the screwed hole (5) that communicates with groove (11) from the every interval 1cm of 0 scale, screw (7) is spun on the screwed hole (5).