DE2462133C3 - Device for determining the layer plane in an X-ray examination device - Google Patents

Description

also the correct layers of interest vorzufin- a sliding sleeve 64 out, which is coupled torsionally secure with "m boom 7, ^b x-ray tube bine

In the X-ray leaves (XIIl. Year, issue 4, April further coupled with the cassette trolley 3 1960, page 97 and following) an article has appeared, sliding sleeve 65 is at the lower end of the Sch.chtstange in which gefunrt from one in the X-ray path obliquely to 50 longitudinally displaceable. Under ™

Admission level placed ladder with a rung- In the Fg2, which an ^Au J ^ L ^ _n J """* ^

is distance of 4 mm reported by means of the ^eht chungst.sch 1 with the P ^ em ^^ layer height to the x-ray film shots into P ^latte2 ™ ^ "™ ^{on. denla} ^^^ can be identified. The sprout trolleys3, which are located at the height of the cassette level of the set slice level, which can be displaced on the examination table, with the transverse to the displacement edge, are sharply imaged in the X-ray slice recording on the cassette trolley with the x-ray film. One can in this inserted cassette tray 4. In the ^Kass e ^{'e e} nlad way to the fully developed Röntgenschichtauf- is an x-ray cassette 13 between the> Sp "nnbak took identify which layer height they represent. ken 14,15 16,17 clamped. The clamping jaws ndm A statement before the creation of the layer recordings 60 in a manner not shown here, however, this device does not allow the bottom of the cassette drawer 4 is a plastic rod 58i lengthways

^g The present invention addresses the problem of the diagonal into the center of the cassette tray 4 based out the operation of Röntgenschichtaufnah- and there like a finger by 90! ^ simplify equipment. In particular, a path should be bent. At the end of the bent over, it is shown how to set the correct fingers. A lead ball 59 is attached, which can be checked and corrected at the slice height before the slice images are swiveled around its longitudinal axis. Level of the m of a ring film cassette inserted

In the case of an X-ray examination device, the film sheet can be swiveled up at the beginning.

If X-ray slice recordings are to be made, the correct setting of the slice height can be carried out Insertion of the cassette drawer 4 without the X-ray film cassette 13 in the cassette trolley 3 and controlled by rotating the rod 58 about its longitudinal axis will. The end of the finger with the lead ball 59 is swiveled up into the film area. Man Now only needs the slice plane during the fluoroscopy by turning the spindle 62 for that long to adjust until the object of interest is at Pivoting of the X-ray tube 8 with the Schidit rod 61 coupled no longer relative to the likewise The lead ball 59 shown moves. The right setting is very easy to find because at Adjusting the layer height in the correct direction the relative movement between the lead ball and the examination

research object when pivoting the X-ray tube on the fluorescent screen of the image intensifier television device is getting smaller. Once the correct layer height has been found, an X-ray film cassette can 13 are placed in the cassette tray 4 and the x-ray layer recording can be triggered. It is then ensures that the correct slice height with the object of interest on the X-ray slice image is shown.

The lead ball visible during the adjustment of the layer level can also be used as a mark for the Serve centering of the cassette trolley to the examination subject. This centering is done entirely unconsciously when setting the correct layer height. It is particularly useful for smaller film formats of Importance.

For this purpose 2 sheets of drawings

Claims (1)

¹ mentioned type is therefore according to the invention at the bottom of the Cassette drawer a stick with a not inserted Claim: Rftrteenfilmkassette in the plane of the film in the βλ! Ι »^ film cassette swiveling finger with Device for determining the layer plane. ^g ''_'nem swing-mounted end in an X-ray examination device with a 5 one is stored on. It is thereby achieved that Layer device, an X-ray diaphragm,)? · ^ 'Ssende layer height already during the an examination table with a directly set the internal _diameter or the be controlled under the patient support plate of the investi yorausg ^e "^ _e ,, _{te Scn} i _c hthöhe chung table along the examination table comparable jewens e ^B _{it üet} the lead ball hochzuschwenken sliding cassette trolley and with an in io ^ka "ⁿ; ^ ^U8 | _hre ' _{when the} shift bar is coupled the cassette loading trolley retractable Kassel - _^and move r ™. The in each ten drawer with clamping jaws for holding one in bcn cnu. , | _objects located on the X-ray film cassette, characterized ge ISIN ^ei "S ^{e. S} ^ ^FILLED," _{non h} respect to the light in the image ζ calibrate η e t. that at the bottom of the cassette drawer (4) rubs sKhm β β ^^^ _{the lead} a rod (58) having a ^slcht when not engaged, ₅ ^ ⁿ ^ ^e 'g _e inserted ^U _s ^g _chwen kt, the cassette and X-ray film cassette (13) to be triggered in the plane of the Fnms m «^ S ^ e, the X-ray film cassette hoc!, pivotable finger ⁰¹ ^ JjSSe _{n of} the invention are based on with a swing-up at its end ™ ^r _{sführungsbeis} Piel the basis of the attached lead ball (59) is rotatably mounted. S _n ^ _6n fluttered. Show it: 1 shows an X-ray examination apparatus with a layer device in a side view and F i g. 2 is a plan view of the cassette loading cart The invention relates to a device for mhdngesch, above cassette ^ ^^ determining the layer plane in an X-ray 25 ° '' ^h '*' ™ _{it% INEM} X-ray examination table first examination apparatus comprising a layer means, chunf gerat ^^^ ™ _u ^B _{latte 2 of Rön} tgen x-ray visor, an examination table with under the ^{Patient ient} f ^{; nia} _i ! ^eru . ^ ^μ · _Tisc hlängsrichtune a directly under the patient support plate ^^ ^c ^ ^sUSC ^ " 'f _en | _aden dagen 3 T of the examination table along the examination table slidable ^ S ^ T ^ sches movable cassette drawer trolley and with 30 f ^
a deirι that can be pushed into the cassette trolley is J ^ _h "^^^^ Cassette drawer with clamping jaws for holding the ^^^^^ t ^^ addition ⁹⁰ SSSSSSSb 92 2B3 is a cassette.adenwa- ^ cooking table 5 * £ £ genes with a sliding cassette drawer became known- 35 movable stand column6, d, e, moreover the one in which also subdivided X-rays ^ »^. ^ SÄ can be made. With X-ray film recording tube 8 ^^ Ι ^^^^^ ξ, ^ The X-ray diaphragm must be used in such a cassette trolley, st with e ⁿ "^" ^ ¹ » Layer height more or less empirically determined! ^{Control (not because ^ 8} each) arranged ^^ d by estimating the height at which the 40 an electrical cable 10 at area of interest in the body of the connected. Besides, st arn,