CN2276328Y

CN2276328Y - No-frame intracranial focus batter board

Info

Publication number: CN2276328Y
Application number: CN96232494U
Authority: CN
Inventors: 朱成
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-07
Filing date: 1996-08-07
Publication date: 1998-03-18
Anticipated expiration: 2006-08-07

Abstract

The utility model relates to a positioning plate which is used for neurosurgery operations. The utility model is characterized in that a block of rigid or flexible bottom board is adopted; a square net which is plaited by fine copper wires 4 connected with the rigid or flexible bottom board; a marking hole 5, a supporting foot 2 and a fixing strap 3 are arranged on the bottom board 1. When patients wear the utility model to enter a CT machine for scanning or X-ray radiography; the distance relationship of focus target and the copper wire of the positioning plate can be observed from images; when marks are marked, operations can be carried out. Compared with the existing stereotactic apparatus, the utility model has the advantages of easy use, rapidity and low cost and can be used for open direct viewing operations, etc.

Description

Frameless intracranial lesion location-plate

This utility model relates to the assist location apparatus in a kind of medical operating, particularly a kind of location-plate that is used for neurosurgery.

Stereotactic apparatus is a kind of orienting device that emptying, intracranial minimal disease and the foreign body of the biopsy that is used for the intracranial tumor of neurosurgery, intracranial hematoma extractd, and it mainly is that wound is little, precision is high, can reach the forbidden zone of calipers operation.At present both at home and abroad position finder is of a great variety, but nothing more than adopting centre of sphere guiding mechanism and rectangular coordinates mechanism, it all is large-scale instrument, cost an arm and a leg, LEKSELL position finder as the production of Sweden ELEKTA company, the ASA-601 stereotactic apparatus that Shenzhen An Ke company produces, during use earlier with frame fixation in patient's head, carry out the X line again and take the photograph sheet or CT scan, determine the coordinate relation of target position and position finder, by calculating, the three-dimensional coordinate of target spot is transformed on the coordinate of position finder, with guider with biopsy forceps, foreign body forceps or damage device are delivered to target spot by sphenotresia, to reach various diagnosis and therapeutic purposes.Whole process is cumbersome, and the patient will have on position finder always.But carry out gradually for operation under the open direct-view of the small space occupying lesion application of intracranial in recent years, its wound is little, operating time short, and patient's misery is little.Because its target spot is relatively large than the target spot in the functional neurosurgery operation, does not in fact need the very high orienting device of precision.But do not have orienting device not all right again, extensively retrieve, do not find relevant technical solution as yet at this problem.

The purpose of this utility model is designed a kind of easy positioner exactly, uses it and can open the direct-view operation.

To achieve these goals, this utility model has adopted following technical proposals:

Adopt the metal gauze of establishment according to certain rules, it and flexible plate or rigid body base plate are combined as a whole, base plate is provided with and makes it be fixed in the device of patient's head.Described metal gauze can adopt the thin copper wire of 0.3-0.8mm, and optimum diameter is 0.5mm, and metal gauze can be compiled into square net, and the square length of side can be between 4-15mm, and the best length of side is 10mm.Described flexible plate can be used various flexible plastics; make as flexible plastics such as polyethylene, polrvinyl chloride; thickness can be between 0.5-2mm; make base plate have certain flexibility and rigidity, also can be with various rubber, yarn fabric, as adhesive plaster; a gluing; be stained with metal gauze, cover protecting film again, throw off protecting film like this and just can use.Metal gauze can be connected as one with various flexible plastic hot pressing, also can be, be stained with metal gauze at gluing of various flexible plastics, cover protecting film again.Yarn fabric is the same with said structure as flexible plate with rubber, seldom states here.The adhesive that is coated with on flexible plate can be understood as fixture above-mentioned.Described stiff baseplate can be various duroplastss, preferably transparent lucite, certain thickness is arranged, as 2-10mm, with above-mentioned metal gauze hot pressing or prefabricated or be bonded on this base plate, and on the stiff baseplate of the center of wire mesh grid, being provided with mark meter hole, operator can be marked at patient's head by this hole.Four jiaos at stiff baseplate can be provided with four legs, and two ends are provided with fixing band again, base plate can be fixed in patient's head like this.Before the operation, the patient puts on that this utility model enters CT scan or the X line is taken the photograph sheet, determines target position, carries out labelling.The location-plate of stiff baseplate can be reused, the location-plate of flexible plate can directly perform the operation (because copper wire, plastics, rubber, yarn fabric are easy to scratch with scalpel).Its disposable only use.

Owing to adopted this utility model, it have compared with the prior art easy to use rapidly, accurate positioning, advantage such as cheap, when the large-scale position finder inconvenience of operation is used under open direct-view, more can now show its irreplaceable superiority.

For this utility model is described in further detail, following routine accompanying drawing provides two most preferred embodiments of the present utility model, has described its using method simultaneously.

Description of drawings:

Fig. 1 be this utility model (stiff baseplate) three-dimensional because of;

Fig. 2 is this utility model (flexible plate) axonometric chart;

Fig. 3 is to use the sketch map of the location-plate of stiff baseplate;

Fig. 4 is the CT scan pictorial diagram;

The location-plate of stiff baseplate as shown in Figure 1, adopt a block length wide respectively for the transparent plexiglass plate 1 of 100mm, thick 5mm as base plate, be provided with the thick copper wire of 0.5mm 4 and weave into square net on its one side, adopt heat pressing process to be compressed on the surface of base plate 1, the foursquare length of side is 10mm.Copper wire grid center is respectively equipped with mark meter hole 5 on the base plate 1, and the hole can be circular, square.Four jiaos at base plate 1 are respectively equipped with a leg 2, and leg 2 and base plate 1 can be thread connection, and fixing band 3 is fixed by leg 2.Also be provided with two pairs of fixing bands 3 on the base plate 1, it can adopt velcro to connect.

The location-plate of flexible plate as shown in Figure 2, flexible plate 7 adopts the thick polyethylene soft plastics of 1.5mm to make, its length and width are respectively 100mm, one side at flexible plate 7 scribbles non-drying glue layer 8, be stained with copper wire grid 9 on it, the diameter of copper wire is 0.5mm, and the length of side of square net is 10mm.Be stamped layer of polyethylene protecting film 10 topmost again.During use, throw off protecting film 10, the one side that will have adhesive sticker is attached to patient's head (wanting a close shave before the operation), sends to CT scan or the X line is taken the photograph sheet, to determine the focus target position.

The computational methods (location-plate with stiff baseplate is example, and the location-plate of flexible plate in like manner) as shown in Figure 3, Figure 4 of using of the present utility model.

1, location-plate is put in a close shave before the operation, and fixing band fastens, and makes copper wire on one side be parallel to the baseline a of CT scan, and makes the location-plate plane perpendicular to the plane of scanning motion, as shown in Figure 3.

2, when scanning, the CT scan aspect and the location-plate that contain focus such as tumor, foreign body and be target spot intersect vertically, and as shown in Figure 4, the copper wire point-like section A on the location-plate can show on the image or on the CT sheet.

3, calculate, copper wire point-like section A point is directly calculated on the image of display apart from available computers apart from target spot T's, also can calculate at a CT sheet pro rata, removes the distance A b of A point to skull B outside plate joining b, and then the distance of bT is the operation degree of depth.If operation bone window need be selected in A ₁Point then can directly be calculated A equally on display ₁b ₁, b ₁The distance of T.

4, mark meter: lamina externa cranii b point position can be determined in the position and the copper wire position when the inswept target position of location-plate plane CT scan baseline of the copper wire point-like section A point under the meter on the CT image, make the mark meter from the mark meter Kong Zhongxiang scalp of location-plate, remove location-plate and can perform the operation.And flexible location-plate is directly made the mark meter on location-plate, directly scratches location-plate and undergos surgery.

Claims

1, a kind of frameless intracranial lesion location-plate, it is characterized in that it is made up of metal gauze, flexibility or rigidity base plate and fixture, wherein metal gauze is associated on the flexibility or rigidity base plate according to certain rules, and the fixture on the base plate is used for base plate is fixed on patient's head.

2, location-plate according to claim 1, it is characterized in that described flexible plate is to be made of various plastics, yarn fabric or rubber, described metal gauze is made by foursquare rule, the one side of flexible plate scribbles adhesive sticker clinging metal gauze, simultaneously again as the fixture of base plate.

3, location-plate according to claim 1, it is characterized in that described base plate is to make stiff baseplate by various plastics, metal gauze is associated on the stiff baseplate by foursquare rule, stiff baseplate is provided with mark meter hole, it is positioned at each wire mesh grid center, also is provided with four legs and two pairs of fixing bands on the stiff baseplate as fixture.

4, according to claim 1,2 or 3 described location-plates, it is characterized in that described metal gauze is made up of the copper wire of 0.3-0.8mm, the square length of side is between the 4-15mm, and described metal gauze can be bonded in the surface of base plate, also can be in advance on base plate.