Block non-check point and prevent the light-struck device of medical XTechnical field
The present invention relates to medical instruments field, particularly block non-check point and prevent the light-struck device of medical X.
Technical background
X-ray examination is widely used at home clinically as a kind of common medical diagnosis means, although most of patient knows that radiation has certain harm to health, all thinking that its harm is very little, also getting used to being exposed under x-ray to cure the disease.But practical situation is really not so, X-ray can cause cytogene to make a variation, and increases canceration or sterile risk.A series of radiation health protection standards that China puts into effect at present are in line with international standards, but in practical operation, these standards but usually perform practically no function, and the patient that shielding protection enjoyed by bat rabat is very few.
Summary of the invention
In order to X-ray examination person can be protected to greatest extent, the invention provides a kind of block non-check point prevent that the light-struck device of medical X from comprising the main support of vertically-arranged, the dark slide that can stop X-ray, dark slide suspended and fixed device, dark slide move up and down actuating device, for drive dark slide move up and down actuating device motor and for detecting use time adapted the displacement detecting sensor that moves up and down of medical X-ray irradiation unit; The power end of motor and control module are electrically connected, and the output shaft of motor is connected with actuating device; Dark slide is fixed on actuating device and also can moves up and down with actuating device; The input signal of its displacement detecting sensor is derived from medical X-ray irradiation unit, and its signal output part and control module are electrically connected, for measuring the distance that X-ray machine moves up and down.
Described dark slide comprises upper and lower two pieces of dark slides.
Described upper and lower two pieces of dark slides are adjustably fixed on dark slide each via horizontal lever arm or frame spacing and move up and down on actuating device.
Described dark slide is plumbous curtain.
Describedly block non-check point and prevent the light-struck device of medical X from also including dark slide stop device for up-and-down movement, itself and the dark slide actuating device that moves up and down is connected.
Described dark slide stop device for up-and-down movement comprises position limit device and lower caging device.
Described displacement detecting sensor comprises wind spring, wind spring is arranged in wind spring groove, be connected with grating encoder by connecting axle, connecting axle is provided with line storage wheel, line storage wheel installs cotton rope, the other end of cotton rope is used for being connected with the shooting head of the external X-ray machine of adapted, and move up and down with X-ray machine, the displacement signal outfan of grating encoder is connected with described control module signal input part.
Described motor is motor or servomotor or hydraulic motor.
Described control module is that Single-chip Controlling or PLC control or DSP controls.
Described main support is provided with rising and decline button, described button and control module electrical connection, for rising or the decline of Non-follow control dark slide.
Described main support lower end is provided with base, and base lower end arranges pulley, is convenient to the mobile device of main support and fixes.
Described main support correspond to the side of medical X-ray irradiation unit, be upper and lowerly provided with pair of bearing.
Described main support correspond to the groove that the side of medical X-ray irradiation unit is provided with vertically-arranged, the described dark slide actuating device that moves up and down is arranged in this groove; The upper and lower of groove is respectively arranged with bearing block.
Described actuating device is ball leading screw driving device, and described dark slide is fixed on screw mandrel by nut movable block, moves up and down with screw mandrel.
Described main support left and/or right both sides are provided with the rail plate being parallel to described screw mandrel, described dark slide is arranged on support member by regulating lock, be convenient to upper-lower position regulate, described support member to be arranged on screw mandrel by nut movable block and to be stuck on guide rail by slide block, moves up and down on guide rail with screw mandrel.
Described actuating device is belt drive unit, chain gearing or linear electric motors actuating device.
Beneficial effect of the present invention: the present invention can reduce the harm that X-ray causes human body effectively, this device can automatically be followed X-ray machine and be moved up and down, and decreases the trouble of manual adjustments.
Figure of description
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the structural representation of the embodiment of the present invention 1 displacement detecting sensor.
Detailed description of the invention
Embodiment 1
Below in conjunction with accompanying drawing, the invention will be further described, as shown in Figure 1, one is blocked non-check point and is prevented the light-struck device of medical X, the main support 6 comprising vertically-arranged, the dark slide 5 that can stop X-ray, dark slide suspended and fixed device 4, dark slide move up and down actuating device 3, for drive dark slide move up and down actuating device motor 8 and for detecting use time adapted the displacement detecting sensor that moves up and down of medical X-ray irradiation unit; The power end of motor 8 and control module are electrically connected, and the output shaft of motor 8 is connected with actuating device; Dark slide is fixed on actuating device and also can moves up and down with actuating device; The input signal of its displacement detecting sensor is derived from medical X-ray irradiation unit, and its signal output part and control module are electrically connected, for measuring the distance that X-ray machine moves up and down.
Described dark slide 5 is plumbous curtain.
Described actuating device is screw mandrel 2, and dark slide is fixed on screw mandrel by nut, and can move up and down with screw mandrel.
Described actuating device is screw mandrel, and two pieces of dark slides 5 are arranged on support member 3 by regulating lock 4, and can carry out upper-lower position adjustment, described support member 3 is arranged on screw mandrel 2 can be moved up and down with screw mandrel 2 by nut.
Described main support 6 lower end is provided with base 9, and base lower end arranges pulley 10, for mobile device with fixing.
As shown in Figure 2, the sensor comprises wind spring, wind spring is arranged on wind spring groove 1 li, be connected with connecting axle 4 and grating encoder 5 by bearing 2, connecting axle 4 is provided with line storage wheel 3, line storage wheel 3 installs cotton rope, the other end of cotton rope connects X-ray machine, can move up and down with X-ray machine, grating encoder and control module electrical connection.
Embodiment 2
With embodiment 1 unlike, each side arrange a slide rail at main support, the adjustment lock 4 in Fig. 1 to be installed on screw mandrels 2 two ends simultaneously and be stuck on slide rail, can move up and down with screw mandrel 2, this sampling device is just more stable.
Embodiment 3
The basis of embodiment 1 or embodiment 2 increases manual adjustments button again, namely two buttons that rise and decline is set on main support 6, is electrically connected with main control circuit.When raise button is pressed, Single-chip Controlling motor is rotated counterclockwise with fixing speed, drives plumbous curtain to rise.When upper limit position switch disconnects, Motor disable is rotated counterclockwise, and prevents plumbous curtain from exceeding upper limit.When decline button is pressed, Single-chip Controlling motor turns clockwise with fixing speed, drives plumbous curtain to decline.When lower position switch disconnects, Motor disable turns clockwise, and prevents plumbous curtain from exceeding lower limit.
Embodiment 3
The basis of embodiment 1 or embodiment 2 increases remote control module, namely in control circuit, remote signal receiver is increased, when signal receiver receives the rising signals of remote controller, with manual rising button with mutually or logical operations mode enter single-chip microcomputer, Single-chip Controlling motor is rotated counterclockwise with fixing speed, drives plumbous curtain to rise.When upper limit position switch disconnects, Motor disable is rotated counterclockwise, and prevents plumbous curtain from exceeding upper limit; When signal receiver receives the dropping signal of remote controller, with Manual descending button with mutually or logical operations mode enter single-chip microcomputer, Single-chip Controlling motor turns clockwise with fixing speed, drives plumbous curtain to decline.When lower position switch disconnects, Motor disable turns clockwise, and prevents plumbous curtain from exceeding lower limit.
The present invention is not limited to above-mentioned detailed description of the invention, and the further expansion that those of ordinary skill in the art makes according to the present invention all falls into protection scope of the present invention.