CN2448288Y - X ray skull positioning fixator - Google Patents

Abstract

The utility model relates to an X ray skull positioning fixer, which relates to the medical photography. The X ray skull positioning fixer is especially suitable for shooting devices of X ray skull special positions. The utility model is characterized in that the X ray skull positioning fixer is composed of a machine frame, a head supporting frame on the machine frame, an optical positioning instrument, a movable film box frame, etc., wherein, the optical positioning instrument takes the cross beam of light of lamp boxes at both sides of a C-shaped guide rail to project and position; the optical positioning instrument can do circumferential, longitudinal and lifting adjustment; the lamp boxes can do rotary and angle of reflection of beam of light adjustment; the movable film box frame can vertically and horizontally and up and down move; a film box disc can do bidirectional angular adjustment; the head supporting rack can also do upward and downward and longitudinal adjustment. When used, the utility model can accurately position and shoot.

Description

X the end of a thread cranium positioning fixture

This utility model relates to medical camera work, is specially adapted to head X line specific position filming apparatus.

Head complex structure, desire absorb its internal structure X line image when promptly clapping the specific position sheet, need that head is placed in specific locus and throw photograph.This exposure technique is many at present puts the position with range estimation or by simple angle board, chi.Owing to just line or point are positioned, the position of putting is difficult to reach sterically defined specification technique requirement, and photographic image does not also often reach the diagnosis requirement.

The purpose of this utility model is to overcome above-mentioned defective, and a kind of X the end of a thread cranium positioning fixture of optical alignment is provided.

Scheme of the present utility model is: X the end of a thread cranium positioning fixture frame is provided with Head supporting rack, the optical alignment instrument, movable film magazine frame, the optical alignment instrument is made up of " C " type guide rail and the both sides that are installed on it location lamp box and lifting support, the lifting support bottom is a screw rod, screw rod is enclosed within on the nut of frame, two pair rollers are arranged on the lifting support both sides, " C " type guide rail sleeve is combined in two pair rollers of both sides, " C " type guide rail is two parallel semi arch steel pipes, be welded with several short straight tubes between two pipes, vertically slide bar group is being fixed at " C " type guide rail two respectively, the lamp box back seat is enclosed within on vertical slide bar, there is a bolt to pass lamp box rear wall mesopore and lamp box back seat mesopore, reuse nut check is connected lamp box with the lamp box back seat, two lamp boxes are in opposite directions to looking, the lamp box inside front has iodine-tungsten lamp, plane mirror is housed on the central rotational axis, and the lamp box frontal plane is installed with the glass plate that has black cross mark, and there is angle dial in the lamp box outside and the pin that heavily hangs down.

Advantage of the present utility model is to come with the adjustable optical position finder putting position of the measurement and positioning person of taking pictures head, is aided with the correspondence adjustment of movable film magazine frame again, adjusts accurate, the science of the method for putting the pendulum position, film making better effects if than range estimation.

Accompanying drawing 1 is a structure chart of the present utility model.

Accompanying drawing 2 is the right view of Fig. 1.

Accompanying drawing 3 is the lifting support vertical view.

Accompanying drawing 4 is lamp box structure figure.

Accompanying drawing 5 is movable film magazine frame well word pipe support structure chart.

Accompanying drawing 6 is movable film magazine frame upper junction composition.

Accompanying drawing 7 is the left view of Fig. 6.

Accompanying drawing 8 is the Head supporting rack structural representation.

This utility model is to implement like this: X the end of a thread cranium positioning fixture by frame (4) and on Head supporting rack (8), optical alignment instrument (7), movable film magazine frame (2) form.Head supporting rack (8) is to be protruded upward as support bar (18) by the last hollow pipe of frame (4), be with montant (25) in the support bar (18), can be locked on the support bar (18) with nut (19) after montant (25) the oscilaltion fixed-site, montant (25) upper end horizontal welding is connected to two short sleeves (21), be with support tube (22) in the short sleeve (21), opening angle and the longitudinal extension amount of screw (23) in order to analog bracket pipe (22) arranged on the short sleeve (21), support tube (22) front end is welded with vertical rod, the vertical rod other end is welded with horizontal tube (24), be with wooden adjusting rod (26) in the horizontal tube (24), parallel the opening of two horizontal tubes (24), the two ends of entrusting (20) are being fixed in a termination of two wooden adjusting rods (26).

Optical alignment instrument (7) is made up of " C " type guide rail (3) and the both sides that are installed on it location lamp box (1) and lifting support (9), lifting support (9) bottom is a screw rod (10), screw rod (10) upper end socket cap is inserted in lifting support (9) base apertures, side is fastening with bolt (11), screw rod lower end (10) is enclosed within on the nut of frame (4), rotate this nut outer ring rotating disk (5), can make screw rod (10) lifting, just optical alignment instrument (7) can lifting, lifting support (9) has two pair rollers (12) on the both sides, " C " type guide rail (3) is linked in two pair rollers (12) of both sides, owing to pressing " C " type guide rail (3) on this two pair roller (12) subiculum, so " C " type guide rail (3) can be made circumferential slippage thereon, just can adjust the angle of inclination of lamp box (1); " C " type guide rail (3) two fixing vertically slide bar group (6) and is being made up of two pipes; and lamp box back seat (16) has corresponding two corresponding apertures cover thereon; then make lamp box (1) can make straight skidding on slide bar group (6) so that adjustment, single lamp box (1) passes lamp box back seat (16) mesopore by the bolt on the rear wall mesopore (11); Adjusting lamp box (1) tightens with nut (19) after the angle in fore-and-aft plane orientation, iodine-tungsten lamp in the lamp box (1) reflects light beam by plane mirror (14) wherein, light beam is come out by glass (13) irradiation of lamp box (1) front, because there is black target cross in glass (13) plate central authorities, so black cross shadow is then arranged in the light beam, adjust the turning cylinder (17) at lamp box (1) central plane reflecting mirror (14) place, just can adjust the outgoing beam angle.Because lifting support (9) liftable, lamp box (1) but straight skidding and rotation, " C " type guide rail (3) can be made circumferential slippage, so light beam can be done and rotatablely move so that adjust the location.

The composition of movable film magazine frame (2) is by stretching out two pairs of straight-bars on the frame (4), two parallel each other horizontal tubes (27) are installed on two pairs of straight-bars, a well word pipe support (30) is put thereon, two transverse tube kinks of well word pipe support (30) are on two parallel each other horizontal tubes (27), then well word pipe support (30) can be done horizontal slippage thereon, other has a carriage (28), carriage (28) below is the longitudinal tubule (L tubule) of two weak points, two longitudinal tubule (L tubule) kinks are on two longitudinal tubule (L tubule)s of well word pipe support (30), then carriage (28) can be made straight skidding thereon, carriage (28) central authorities are fixed with rotary nut (33), the spiral montant is enclosed within on this nut, spiral montant (34) can be thereon down to moving, and spiral montant (34) upper end is a semicolumn, and there is screw in semicolumn central authorities.Film magazine dish (36) below is a hinge arrangement, one screw (35) is arranged in order to the fixed hinge axle on the hinge, the i.e. fixing angular phase of film magazine dish on hinge axis, hinge central authorities are welded with half cylindrical bar (31), there is circular hole in semicircle mast (31) central authorities, the corresponding plane contact in semicolumn plane of this semicircle mast (31) and spiral montant (34) upper end has a bolt (32) to pass the circular hole of semicircle mast (31), is screwed in the screw of spiral montant (34).If then unclamp bolt (32), the film magazine dish can be done vertical rotation therein.Magazine then is placed on the film magazine dish.In sum, the film magazine dish can be done horizontal slip, longitudinal sliding motion, oscilaltion, vertically rotates, lateral rotation, that is to say that magazine on the film magazine dish can make the free adjustment of optional position and put.And an angle dial is respectively arranged and the pin that heavily hangs down on film magazine dish two right-angle sides, in order to the two-way drift angle degree of indication film magazine dish.

From the locus, the frame top is " C " type guide rail, and the line central authorities of two lamp box light beams entrust, the below of entrusting, the top of circular arc is the film magazine dish in " C " type guide rail, because to entrust be the termination that is positioned at the wooden adjusting rod that stretches out, so from vertically, the Head supporting rack main body does not influence the witness marker projection not in the vertical plane at light beam place.

During use, at first adjust the studdle height of gantry base, make frame be in the horizontal stable state, it then is benchmark with the perpendicular bisector, rotation " C " type guide rail, make two lamp box lines be in level, adjust vertical relative position of two lamp boxes and corner, black cross taeniae is overlapped, adjust two lamp box plane reflection mirror angle, black cross horizontal stripe is overlapped, then two cross projections of the light beam of two lamp boxes projection overlap each other, this can be placed between two light beams with a blank sheet of paper plate, see whether two-sided cross projection is overlapping, " C " type guide rail that slides again after adjusting makes 0 degree of the pin orientation angle graduated disc central authorities of heavily hanging down on two lamp boxes, after the accurate adjustment, then finished the lamp box adjustment like this.

During shooting, white glues cloth is pasted on patient's head standard radial line place, with head place entrust on, by throwing according to the position to head mesion angle requirement sloped position lamp, head standard radial line is matched by the cross projection sign of throwing the projection of as requested and positioning lamp, then again magazine is put into the film magazine dish, adjust the film magazine frame, make it to be in best the throwing, just can expose and take according to the position.

Claims (3)

1, a kind of X the end of a thread cranium positioning fixture, X the end of a thread cranium positioning fixture frame is provided with Head supporting rack, the optical alignment instrument, movable film magazine frame, it is characterized in that the optical alignment instrument is made up of " C " type guide rail and the both sides that are installed on it location lamp box and lifting support, the lifting support bottom is a screw rod, screw rod is enclosed within on the nut of frame, two pair rollers are arranged on the lifting support both sides, " C " type guide rail sleeve is combined in two pair rollers of both sides, " C " type guide rail is two parallel semi arch steel pipes, be welded with several short straight tubes between two pipes, vertically slide bar group is being fixed at " C " type guide rail two respectively, have a bolt to pass lamp box rear wall mesopore and lamp box back seat mesopore, reuse nut check is connected lamp box with the lamp box back seat, the lamp box back seat is enclosed within on vertical slide bar, to looking, the lamp box inside front has iodine-tungsten lamp to two lamp boxes in opposite directions, and central rotational axis is equipped with plane mirror, the lamp box frontal plane is installed with the glass plate that has black cross mark, and there is angle dial in the lamp box outside and the pin that heavily hangs down.

2, a kind of X the end of a thread cranium positioning fixture according to claim 1, the composition that it is characterized in that movable film magazine frame is by stretching out two pairs of straight-bars on the frame, two parallel each other horizontal tubes are installed on two pairs of straight-bars, a well word pipe support is put thereon, two transverse tube kinks of well word pipe support are on two parallel each other horizontal tubes, other has a carriage, the carriage bilateral is the longitudinal tubule (L tubule) of two weak points, this longitudinal tubule (L tubule) kink is on two longitudinal tubule (L tubule)s of well word pipe support, a VERTICAL TUBE is fixed by carriage central authorities, the spiral montant is enclosed within on the nut, and spiral montant upper end is a semicolumn, and there is screw in semicolumn central authorities.Film magazine dish below is a hinge arrangement, one screw is arranged in order to the fixed hinge axle on the hinge, the i.e. fixing angular phase of film magazine dish on hinge axis, hinge central authorities are welded with half cylindrical bar, there is circular hole in semicircle mast central authorities, the corresponding plane contact in semicolumn plane of this semicircle mast and spiral montant upper end has a bolt to pass the circular hole of semicircle mast, is screwed in the screw of spiral montant.Magazine then is placed on the film magazine dish.And an angle dial is respectively arranged and the pin that heavily hangs down on film magazine dish two right-angle sides.

3, a kind of X the end of a thread cranium positioning and fixing instrument according to claim 1, it is characterized in that Head supporting rack is to be protruded upward as support bar by hollow pipe on the frame, be with montant in the support bar, montant oscilaltion position can be fixed on the support bar with nut check, montant upper end horizontal welding is connected to two short sleeves, be with support tube in the short sleeve, screw is arranged in order to open angle of analog bracket pipe and longitudinal extension amount on the short sleeve, the support tube front end is welded with vertical rod, the vertical rod other end is welded with horizontal tube, be with wooden adjusting rod in the horizontal tube, two horizontal tubes are parallel to be opened, and the two ends of entrusting are being fixed in a termination of two wooden adjusting rods.

Images