CN2562165Y

CN2562165Y - Focus measuring device under X-ray

Info

Publication number: CN2562165Y
Application number: CN 01261298
Authority: CN
Inventors: 张光明; 郝立群
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-23
Filing date: 2001-08-23
Publication date: 2003-07-23
Anticipated expiration: 2011-08-23

Abstract

The utility model relates to a focus measuring device under X-ray, consisting of a supporting frame and a measuring ruler. The device is mainly used for the measurement of radiation treatment and radiation. As the measuring ruler and a cross rod in the supporting frame are made of carbon fiber, the device is characterized by highly sound transmission X-ray and has the advantages of non-stop focus and non-artifact. Lead is inlaid in the lower edge of the measuring ruler and can stop the X-ray; the comparison between the part of the lower edge inlaid with the lead and the part passed through with the X-ray is obvious, and data is demonstrated clearly. The measuring ruler is positioned close to the focus, and the size and mobility of the focus is directly measured by the measuring ruler. The measuring ruler can be also used for X-ray photograph to mark amplification and the actual size of the focus. The measuring ruler can be used as a common ruler and be used for measuring the up-and-down motion, side-to-side motion and seesaw motion of the focus or an organ, the depth of the focus and the body thickness of the patient. In the stereotactic radiation treatments such as the matching with X-knife and the positioning of the r-knife, etc., the utility model is used for actually measuring the motion conditions of the focus or the organ, providing accurate data and drawing up the accurate and reasonable stereotactic radiation treatment plan. The utility model has the advantages of relatively high clinical and practical value and economic benefit.

Description

Focus measurement mechanism under the X-light

One, technical field

The utility model relates to the measurement of radiotherapy of patient's focus and radiation, and is specifically a kind of to patient's focus measurement mechanism under X-light.

Two, background technology

When the doctor of radiotherapy section locatees to the patient, need to understand the wild distance with borderline tumor of size, scope of activities, the radiation of focus etc. under X-ray.The radiologist also needs to understand the size, mobility of pathology etc. when diagnosing the illness, to help to make correct diagnosis.But also be not directly used at present dip stick easy, practical under the X-ray, can not be accurately, under X-ray, measure focus easily, the X-ray sheet of taking because magnification ratio is non-constant, also has error during measurement.As the judge length of the cancer of the esophagus of perspective, can only estimate by rule of thumb, certain error is arranged, during radiotherapy localization, require to establish wild upper and lower 3cm in focus edge or the 5cm of surpassing, also be to estimate by rule of thumb.And for example, when the X-cutter of the lung cancer of being expert at or the treatment of r-cutter, the correct measurement tumour is at three-dimensional range of movement, and it is crucial that science is formulated radiotherapy planning, but three-dimensional dip stick does not appear in the newspapers under the present X-light.

Three, the purpose of this utility model, technical scheme and beneficial effect

It is clear that the purpose of this utility model just provides the bigger scale of a kind of value for clinical application, do not block focus, do not have pseudo-shadow, focus measurement mechanism under the X-light simple in structure, easy to use.

The wood utility model is achieved in that it is configured to by propping up of forming of base, support bar, fastening block, cross bar, also include dip stick, clamping plate, its main points are: support bar is fixed on the base, support bar is provided with scale (scribing by common ruler), cross bar is fixed by fastening block and support bar, the dip stick of band scale is housed by clamping plate on the cross bar, it is plumbous to press the scale edge on the dip stick, be provided with the sprue of band galvanized wire at an end of cross bar, sprue lower edge and fastening block lower edge are at same horizontal line, with the accuracy that guarantees to measure.

Focus measurement mechanism under the X-light of the present utility model, said dip stick and the horizontal fixed vertical that has scale with cross bar.

Focus measurement mechanism under the X-light of the present utility model, the said dip stick that has scale is " cross ", and horizontal fixed vertical with cross bar.

Focus measurement mechanism under the X-light of the present utility model, the said dip stick that has scale is " cross ", and vertical fixing vertical with cross bar.

Two kinds of dip sticks under the X-light of the present utility model in the focus measurement mechanism can be placed on patient's topical application.

Four, description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the horizontal structure synoptic diagram of a kind of " cross " of the present utility model gage;

Fig. 3 is the vertical stratification synoptic diagram of a kind of " cross " gage of wooden utility model;

Fig. 4 is the utility model dip stick synoptic diagram;

Fig. 5 is the utility model " cross " dip stick synoptic diagram.

Five, embodiment and effect

Dip stick is made by carbon fibre and lead.Dip stick as shown in Figure 4 is similar to common ruler, long 21cm, and thick 0.1cm, wide 1.8cm, the positive top of ruler makes by common ruler, and scale 20cm can be used as common ruler and uses, and following edge is plumbous, is used for measuring under the X-light.Preceding 10cm scribes by common ruler, and every 1mm inlays at the place one of the plumbous point of 0.4mm, and every 5mm inlays at the place two plumbous points, and every 10mm inlays at the place three plumbous points, and the latter two plumbous putting become 0.6mm simultaneously.Back 10cm inlays the plumbous point of two 0.6mm by every 5mm, and every 10mm inlays the plumbous point of three 0.6mm and scribes (be used for bigness scale, and reduce manufacture craft, reduce cost).Wherein corresponding font is inlayed at 5cm, 10cm, 15cm, 20cm place.As the dip stick among Fig. 5 is " cross ", and two chis are vertical mutually, and level, miter square length are 12cm, wide 1cm, thick 0.1cm, and 1cm scribes from the edge, inlays plumbous point, and the 10cm point of crossing is at the 5cm place before the same Fig. 4 of methods, ruler.

As Fig. 1, Fig. 2, shown in Figure 3, during use, by distance about the nut scalable cross bar 4 on the fastening block 3 and height.Be placed on support on the analog machine location bed during use or on the x-ray fluoroscopy bed, the body that can measure the patient is thick, the degree of depth of midplane thickness, focus (when measuring, need to adjust position, the direction of support under X-ray, finish by the galvanized wire in the sprue 6 7).By regulating clamping plate 5 dip stick is fixed on the cross bar 4, regulates fastening block 3, determine dip stick about, position, the left and right sides near focus, can under perspective, measure focus size, mobility, or the moving situation of internal organs (as lung etc.).Also can be used for taking mark magnification ratio in the X-mating plate, marked lesion size.Length (shown in Figure 1) dip stick as the oesophagus that judges in perspective is placed on patient's wall of the chest center, or with immobilization with adhesive tape in pleurobranch wall oesophagus level, or be placed on side oesophagus level with support, can measure length of lesion under the perspective more exactly, wild size and and the distance of borderline tumor etc. are established in measurements during in the simulation location.And for example, when doing body X-cutter or r-cutter, require error less than 4mm, the degree of accuracy height needs accurately to measure, some tumour such as lung cancer are also with respiratory movement, must consider it in three-dimensional motion when doing above-mentioned treatment, utilize Fig. 2, dip stick shown in Figure 3, can measure focus at three-dimensional range of movement, thereby the acquisition authentic data is made accurate, rational three-dimensional radiotherapy planning.During radiation therapy,, need to understand the distance (degree of depth) of focus for another example, utilize that support can measure more accurately that focus is thick apart from the distance of body surface, patient's body, midplane thickness etc. apart from body surface for the percentage depth dose in calculating foci district.

Adopt the utility model,, have good Transmission X line characteristics, do not block pathology in the practical application, do not have pseudo-shadow because the cross bar in dip stick and the support is made with carbon fibre.Lead has the very strong X-line characteristics that stop, the two contrast is obvious, and numerical value is clear.This dip stick can be placed near the focus, under X-light pathology size, mobility is directly measured, and also can be used for being placed near the focus mark magnification and marked lesion actual size in the film making.The top to bottom, left and right, front and rear motion that not only can make common ruler usefulness but also can measure focus or internal organs simultaneously.In three-dimensional radiotherapy, as cooperating X-cutter or r-cutter location, the motion conditions of actual measurement pathology or internal organs provides precise information, formulates accurate, rational three-dimensional radiotherapy planning.Have bigger value for clinical application and economic benefit.

Claims

1, focus measurement mechanism under a kind of X-light, include base (1), support bar (2), cross bar (4), the support that sprue (6) is formed, also include fastening block (3), dip stick (8), (9) and clamping plate (5) constitute, it is characterized in that: support bar (2) is fixing with base (1), support bar (2) is provided with scale, cross bar (4) is connected with support bar (2) by fastening block (3), go up dip stick (8) or the dip stick (9) that the band scale is housed by clamping plate (5) at cross bar (4), dip stick (8), (9) upward inlay corresponding plumbous point, be provided with the sprue (6) of band galvanized wire (7) at an end of cross bar (4) by scale.

2,, it is characterized in that said dip stick (8) and the horizontal fixed vertical that has scale with cross bar (4) according to focus measurement mechanism under the said X-light of claim 1.

3,, it is characterized in that the said dip stick (9) that has scale is " cross ", and horizontal fixed vertical with cross bar (4) according to focus measurement mechanism under the said X-light of claim 1.

4,, it is characterized in that the said dip stick (9) that has scale is " cross ", and vertical fixing vertical with cross bar (4) according to focus measurement mechanism under the said X-light of claim 1.