CN2426724Y

CN2426724Y - Multifunction cerebral three-dimensional direction-finder matched with x-y

Info

Publication number: CN2426724Y
Application number: CN 00226397
Authority: CN
Inventors: 张剑宁; 章翔; 梁景文
Original assignee: NO 1 HOSPITAL ATTACHED TO NO 4
Current assignee: NO 1 HOSPITAL ATTACHED TO NO 4
Priority date: 2000-05-11
Filing date: 2000-05-11
Publication date: 2001-04-18
Anticipated expiration: 2010-05-11

Abstract

The utility model relates to a multifunction cerebral three-dimensional direction finder matched with X-rays, which relates to the cerebral three-dimensional direction finder used in surgical operations. The multifunction cerebral three-dimensional direction finder is composed of a head ring, an X-ray correcting device, X, Y and Z axes, an X-ray bottom board, a small X-ray head ring supporting block, an X-ray amplification coefficient bradawl, etc. The multifunction cerebral three-dimensional direction finder is characterized in that the X-ray correcting device, fixing screws and the X-ray amplification coefficient bradawl can be respectively inserted onto the head ring; a guide arm is fixed on the X axis, and is connected to the head ring through a slide block; a holding device is positioned on the guide arm; a rotary cutting movable detecting needle or a magnetic needle is arranged in the holding device. The high-precision multifunction cerebral three-dimensional direction finder can be simultaneously matched with a CT and an MRI. The utility model has yare and flexible structure, and is capable of satisfying various oriented surgical body positions.

Description

The multifunctional three dimensional direction finder for brain adaptive with the X line

This utility model relates to stereo brain orienting instrument used in the surgical operation.

Horseley-Clarke technique is one of important development direction of modern neurosurgery.Advantages such as this technology has the location accurately, and additional injury is little, and is safe and reliable are the treatment parkinson disease, functional neurosurgery surgical diseases and brain critical function district and deep pathological changes such as torsion spasm, psychosis.Requisite important tool such as intracranial foreign body.In order to improve the accuracy of horseley-Clarke technique, thereby the economization systematic error improves operative effect, reduce the incidence rate of complication, do not economize the scholar all in the development of being devoted to stereotactic apparatus and improvement both at home and abroad, Leksell position finder series, BRW and the CRW series of developing as states such as Sweden, the U.S., Germany and Japan, Fisher position finder series etc. have all adopted framework or hexahedron, semicircle leading arm structure.The position finder of domestic development mainly is imitated external position finder, the common issue with that these stereo brain orienting instruments exist is: 1. big, the complex structure of volume, 2. to the demonstration and the computational methods more complicated of the invisible target spot of intracranial, nothing is than positive system, error more greatly, 3. frame structure is numerous and diverse, the head exposure range is little, is unsuitable for the open direct-view operation of stereotaxis; 4. adaptive X line, CT, MRI locate simultaneously, and function is more single; 5. after position finder was fixed in patient head, patient was difficult to take lateral position or ventricumbent position, was unsuitable for multiple position operation.

Lens such as the adaptive peculiar zero corrector of multifunctional three dimensional direction finder for brain of this utility model and X line, X, Z axle, X line central ray corrector, make it the time with the adaptive location of X line machine, degree of accuracy significantly improves, and design science, simple in structure, easy operating have very strong practicality.

This utility model is realized in the following manner:

The multifunctional three dimensional direction finder for brain adaptive with the X line is made up of headring, X line corrector, X, Y, Z axle, X line base plate, X the end of a thread ring ramuscule piece, X line amplification coefficient conelet, machine center origin correction device, slide block, side position switching head rest, headring firm banking, leading arm, holder, magnetic needle, rotary-cut biopsy needle, hold-down screw.

The drawing of accompanying drawing is described as follows:

Fig. 1 is a front view of the present utility model.

Fig. 2 is a vertical view of the present utility model.

Fig. 3 is a side view of the present utility model.

Fig. 4 is corrector side-looking of X line and cross plate front elevational schematic.

Fig. 5 is the holder sketch map.

Fig. 6 is the needle guard sketch map.

Fig. 7 is a rotary-cut biopsy needle sketch map.

Fig. 8 is the magnetic needle sketch map.

Fig. 9 faces (1), side-looking (2) sketch map for side position switching head rest.

Figure 10 faces (1), side-looking (2) sketch map for base plate.

Figure 11 machine center origin correction device sketch map.

Figure 12 is that machine center origin correction device is at the locational sketch map of position finder.

Be described in detail embodiment of the present utility model in conjunction with the accompanying drawings:

Among Fig. 1, Fig. 2, Fig. 3,1 be X line corrector, 2 for hold-down screw, 3 for headring, 4 for X line amplification coefficient conelet, scale is arranged, for Y-

axis

5,1,2,4 can be inserted respectively on the headring 3 in the aperture on two side planes of headring 3 respectively; 6 is that the Z axle 13 of X-axis and fore-and-aft direction is one, X, the Z axle snaps in the groove of slide block 7, the groove of slide block 7 another side vertical direction is stuck on the Y-axis 5, X can be slided on 5, the Z axle also can slide the annulus of leading arm 8 ends by fore-and-aft direction on slide block 7, can be enclosed within outside the X-axis 6, have screw to fix on the annulus, X-axis 6 is cylindric, and leading arm 8 can rotate thereon, holder 9 is arranged on the leading

arm

8,9 can slide at 8 upper edges, 1/4 arc, and needle guard 14 is arranged in the holder 9, and headring ramuscule piece 15 can be fixed on the headring 3 with screw, aperture is arranged on 15, can insert hold-down

screw

2,10 is the headring firm banking, and 11 is base plate, 11 and 10 usefulness spiral shell pins are fixed, 10 and headring 3 be screwed, 12 is X line base plate, 12 and 10 are screwed.

Among Fig. 4,16 be little crosshead, 17 for little axle, 18 for cross plate, 19 for coupling block, 20 is the spindle nose axle, be carved with three and 16 on 18 and be wholeheartedly concentric circular together, can be used for the film making of X line, 20 can insert headring 3 center, and 20 also can unload, with 19 and slide block connect and be used for side X line and make film.

Among Fig. 5,21 be nut, 22 determine for indication is sliding, 23 for holder, 8 is leading arm, 23 is that 4 1/4 arc part screws are formed a hollow circle 22 with top, can insert needle sleeve 24 on the hollow circle.

Among Fig. 6,24 is that needle guard letter, 25 is that sleeve, 26 is that guide pin bushing, 27 is little guide pin bushing.Rotary-cut biopsy needle or magnetic needle insert in the needle guard, and needle guard inserts holder, holder can slide on leading arm, so that operation.

Among Fig. 7,28 is that syringe needle, 29 is that coupling head, 30 is that trocar sheath, 31 is that interior Pipe Cutting, 32 is that plug, 33 is that spacing ring, 34 is a screw, and 31 is rotatable with the lesion tissue cutting-out, and rotate 30 recesses are sealed, and the biopsy thing is taken out.

Among Fig. 8,35 be magnetic head, 36 for coupling sleeve, 37 is pipe, 35 pack in 36, utilize spinning or splicing, 36 pack into 37 adopts welding.

Among Fig. 9,38 be adaptor, 39 for support, 39 and headring firm banking 10 be screwed, 38 and 39 are screwed, fluted on 38, the sidepiece of headring 3 can be snapped in, headring 3 is sidelong on side position switching head rest, uses during for the bit manipulation of patient head side.

Among Figure 10,11 is base plate, and there are three small sircle holes 11 centers, and respectively there are 4 screw holes both sides, is used for fixing to also have 4 little round platforms on the

headring firm banking

10,11, can be used to put X line base plate.

Among Figure 11,40 be correcting plate, 41 for coning correction, there are two pins 42 at two ends on 40, can insert on two holes, both sides, headring 3 center, as shown in figure 12.

During use:

With 4 X lines fixedly the ramuscule piece be installed on the head circle, and the head circle is fixed on the head by a fixing piece;

2. X line central ray corrector is installed on the head circle and goes up (just, respectively there is corresponding installation method the side position), X line machine bulb is pulled to one meter distant place of position finder, and the cross hairs on the X line machine is overlapped with cross hairs on the corrector, and make end on projection and corrector surrounding carve the territory apart from matching, take the photograph sheet;

3. measure the target spot D coordinates value, computational methods are as follows:

The normotopia amplification coefficient

Side position amplification coefficient

According to the selected target spot requirement of operation, determine its coordinate figure;

4. according to the target spot D coordinates value, slide block and X, Z axial adjustment Y, Z coordinate figure and fixing are installed, leading arm are installed are then adjusted the X coordinate figure, make guider aim at sphenotresia and fixing;

5. when performing the operation, X line base plate, X line corrector, X line amplification coefficient conelet are removed, with handled easily.

Advantage of the present utility model:

1. designed detachable machine center origin correction device, x-ray adjuster and x-ray headring ramuscule piece, X-ray amplification coefficient conelets etc. make it with the adaptive location of x-ray the time, and accuracy significantly improves.

2. design operation fixedly the X the end of a thread ring ramuscule piece and the side position switching head rest of usefulness, be applicable to various operation positions.

3. designed magnetic needle remanent magnetism 3700 Gausses, suction 530 grams, to extracing intracranial ferromagnetism foreign body, particularly multiple shell fragment is more suitable.

4. adaptive X line, CT and MRI locate simultaneously, and range of application enlarges.

Claims

1. the multifunctional three dimensional direction finder for brain adaptive with the X line, by headring, X line corrector, X, Y, the Z axle, X line base plate, X the end of a thread ring ramuscule piece, X line amplification coefficient conelet, machine center origin correction device, slide block, side position switching head rest, the headring firm banking, base plate, leading arm, holder, magnetic needle, the rotary-cut biopsy needle, hold-down screw is formed, it is characterized in that: X line corrector (1), hold-down screw (2), X line amplification coefficient conelet (4) can insert respectively in the aperture on the headring (3), headring (3) is gone up has X the end of a thread ring ramuscule piece (15) with screw attachment, on two side planes of headring (3) scale is arranged respectively, Y-axis (5) is arranged, the Z axle (13) of X-axis (6) and fore-and-aft direction is an one, X, the Z axle snaps in the groove of slide block (7), the groove of slide block (7) another side vertical direction is stuck on the Y-axis 5, X-axis 6 is cylindric, the terminal annulus of leading arm (8) can be enclosed within outside the X-axis (6), there is screw to fix on the annulus, holder (9) is arranged on the leading arm (8), rotary-cut biopsy needle or magnetic needle (14) are arranged in the holder (9), headring (3) and headring firm banking (10) are used screw attachment, headring firm banking (10) and base plate (11) are used screw attachment, and screw attachment is used in X line base plate (12) and (10); Switching head rest in side position snaps in the sidepiece on the headring (3) with the groove that screw and (10) join, transfer on the head rest in the side position, and headring (3) is sidelong.

2. according to claim 1 and the adaptive multi-functional brain stereotactic of X line is characterized in that: X line corrector (1) can insert headring (3) center, also can be fixed on the slide block (7), is used for the side and claps X-ray film.

3. according to claim 1 and 2 and the adaptive multifunctional three dimensional direction finder for brain of X line, it is characterized in that: X line corrector (1), X line base plate (12), X the end of a thread ring ramuscule piece (15), X line amplification coefficient conelet (4) are taken off, use during operation technique with CT, MRI.