CN2384584Y

CN2384584Y - Stereoscopic directional intracerebral focus puncture outfit

Info

Publication number: CN2384584Y
Application number: CN 99222083
Authority: CN
Inventors: 刘伯晨; 李洪善; 兰小磊; 宁铁英; 王同伦
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-22
Filing date: 1999-08-22
Publication date: 2000-06-28
Anticipated expiration: 2009-08-22

Abstract

The utility model relates to a medical appliance used for intracerebral focus puncture-a stereoscopic positioning intracerebral focus puncture outfit. The stereoscopic directional intracerebral focus puncture outfit is composed of a bow-shaped positioning puncture frame (2) and a measuring plate (7). Two fixing bars (1), an auxiliary fixing needle (3) and a puncture outfit (4) are arranged on the puncture frame; the bars and the needle is fixed by screw caps (5) through a positioning device (6). According to the CT film of patient, X, Y and beta values from an intracerebral focus point to the inner circular arc of the puncture frame can be figured out via the measuring plate (7); the inner extension distance of the bars and the needle can be determined; then the stereoscopic directional intracerebral focus puncture outfit is fixed to the plane of the skull CT film and punctures., the utility model has the advantage is simplicity and easy application, low cost and short preoperative preparation time, and is suitable for diagnosing and treating intracerebral space-occupying pathological changes and especially suitable for salvaging intracerebral serious patients.

Description

Stereotaxis intracerebral lesion perforator

This utility model relates to the medical apparatus and instruments of intracerebral lesion puncture usefulness.

At present, be applied to high-precision CT stereo brain orienting instrument of modern times clinical both at home and abroad, but the complex operation of application process, time is long before the art, patient need wear the headstock and set up reference frame, carries out head CT scanning again, and this is to the critical patient, the short patient's of haziness patient and cervical region rescue causes difficulty, moreover the costing an arm and a leg of this instrument.

The purpose of this utility model provides a kind of apparatus simple in structure, marks the intracerebral lesion coordinate position from the CT sheet, is located at this CT plate plane puncture of head by this instrument rack then, treats.

The purpose of this utility model realizes by following measure, it is made up of arc localised puncture frame (2) and measurement plate (7) two parts, arc localised puncture frame is 90 degree arc and two ends tangent line extensions, the middle part of its width is provided with corresponding groove, there is groove the inboard of groove, three localizers (6) are housed in the groove, on, the hold-down bars (1) of packing in the localizer of below, the auxiliary locking pin (3) of packing in the localizer at middle 45 degree places, localizer is fixed in arc localised puncture frame by nut (5) with hold-down bars and auxiliary locking pin, perforator (4) in groove by a certain angular position of fixed by nut in arc localised puncture frame.Measure plate (7) and be made of semicircle and rectangle, semi-circular portions has the angle groove, and the length and width direction of rectangle part all has the length groove.

90 degree arcs of arc localised puncture frame (2) also can change 180 degree semi arch and two ends tangent line extensions into.

The version of arc localised puncture frame (2) and localizer (6), can not establish groove at the middle part of arc localised puncture frame width, and change its width both sides and inboard, localizer below into version that dovetail groove matches, perhaps change its width both sides into right-angle side, the version that the localizer below trench bottom of correspondence is established rib.Also can establish groove at the thickness direction of arc localised puncture frame middle part, then can be without localizer, but with hold-down bars (1), the cylindrical of auxiliary locking pin (2) and perforator (4) is provided with screw thread, and by nut they is fixed in arc localizer.

Measure the groove of the semi arch part of plate (7), also can increase the semi arch groove of radius value.

Measuring plate (7) is made by transparent thin board.In addition, a rubber plug can be set up in the cranium shell hole of puncture needle and head contact position.

The utility model has the advantages that simple in structure, cost is low, easy and simple to handle, little to patient trauma, art weak point of preceding time, positioning accuracy is low than the CT stereo brain orienting instrument, but can satisfy the required precision of the stereotactic surgery of big intracerebral lesion, be suitable for disconnected and treatment, be particularly suitable for the super early stage removing of intracerebral hematoma the treasure of occupying lesion in the brain.

Description of drawings is as follows:

Fig. 1 is the structural representation of the arc localised puncture frame of stereotaxis intracerebral lesion perforator.

Fig. 2 is the F-F profile of Fig. 1.

Fig. 3 is the measurement plate of stereotaxis intracerebral lesion perforator.

Fig. 4 is that head CT sheet lesions position calculates sketch map.

This utility model will be further described in conjunction with the accompanying drawings, go up the focus target spot O that occurs according to unenhanced of patient's head CT, the corresponding A that marks, B, C, the D point, and scalp point of puncture P, AD is the head anteroposterior diameter, C is the mid point of AD, CB is the perpendicular bisector of AD, meet at O ' to AD as vertical line from the O point, meet at C ' to CB as vertical line, will measure plate and overlay on the CT sheet, the semi arch center is overlapped with focus target spot O, X-axis and CB line parallel, Y-axis and AD line parallel record the angle β of puncture needlework OP and X-axis line, reach C ' B, O ' A apart from size, intracerebral lesion target spot then: X-direction B point is X=R-C ' B * K to the distance of the interior circular arc of arc localised puncture frame (2), Y direction A point distance of circular arc in the arc localised puncture frame is Y=R-O ' A * K, and R is an inner arc radius, and K is the ratio value coefficient of CT sheet and actual head.According to the numerical value that calculates, the upper fixed rod is pressed Y value and OO ' * K value, the below hold-down bars is pressed X value and OC ' * K value, perforator is fixed on the arc localised puncture frame by the β value, be the plan-position line of the corresponding CT sheet of patient's head and A, B, D, P point sphenotresia to point of puncture P, arc localised puncture frame secured in alignment is reached auxiliary locking pin on the AD line in A, B, then puncture to intracerebral lesion target spot O in the lancet puncture device, and treat.

Claims

1, a kind of stereotaxis intracerebral lesion perforator has perforator (4), it is characterized in that:

A, arc localised puncture frame (2) are 90 degree arc and two ends tangent line extensions, the middle part of its width is provided with corresponding groove, there is groove the groove inboard, three localizers (6) are housed in the groove, the hold-down bars (1) of packing in the localizer of upper and lower, the auxiliary locking pin (3) of packing in the localizer at middle 45 degree places, localizer is fixed in arc localised puncture frame by nut (5) with hold-down bars and auxiliary locking pin, perforator (4) in groove by a certain angular position of fixed by nut in arc localised puncture frame;

B, measurement plate (7) are made of semicircle and rectangle, and semi-circular portion has the angle groove, and the length and width direction of rectangle part all has the length groove.

2, stereotaxis intracerebral lesion perforator according to claim 1 is characterized in that said arc localised puncture frame is 90 degree arcs, also can be 180 degree semi arch and two ends tangent line extensions.

3, stereotaxis intracerebral lesion thorn device according to claim 1 and 2, the version that it is characterized in that said arc localised puncture frame (2) and localizer (6), can not establish groove at the middle part of arc localised puncture frame width, and change its width both sides and inboard, localizer below into version that dovetail groove matches, or change its width both sides into right-angle side, the version that trench bottom is established rib in the localizer below of correspondence.

4, stereotaxis intracerebral lesion perforator according to claim 1 and 2, it is characterized in that said arc localised puncture frame (2), also can establish groove at the middle part of thickness direction, do not need localizer, just with hold-down bars (1), the cylindrical of auxiliary locking pin (3) and perforator (4) is provided with screw thread, and by nut they is fixed in arc localised puncture frame.

5, stereotaxis intracerebral lesion perforator according to claim 1 is characterized in that the groove of said measurement plate, and the semi arch part also can increase radius semi arch groove.

6, stereotaxis intracerebral lesion perforator according to claim 1 is characterized in that said measurement plate made by transparent thin board.

7, stereotaxis intracerebral lesion perforator according to claim 1, it is characterized in that said puncture needle contact with head into cranium shell hole, can set up a rubber plug.