CN101868181A - Firing delay for retrofit digital x-ray detector - Google Patents
Firing delay for retrofit digital x-ray detector Download PDFInfo
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- CN101868181A CN101868181A CN200880117446A CN200880117446A CN101868181A CN 101868181 A CN101868181 A CN 101868181A CN 200880117446 A CN200880117446 A CN 200880117446A CN 200880117446 A CN200880117446 A CN 200880117446A CN 101868181 A CN101868181 A CN 101868181A
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Abstract
A method and apparatus are disclosed for obtaining an x-ray image from an x-ray imaging apparatus using a digital radiography receiver installs a retrofit connection apparatus that adapts the x-ray imaging apparatus for use with the digital radiography receiver by forming a receiver interface channel for communicating signals to and from the digital radiography receiver, forming an operator interface channel for routing at least an input expose signal from an operator control to the connection apparatus and forming a generator interface channel for transmitting at least an output expose signal from the retrofit connection apparatus to an x-ray generator of the x-ray imaging apparatus. An input expose signal over the operator interface channel initiates a reset of the digital radiography receiver over the receiver interface channel before the output expose signal to the x-ray generator is transmitted over the generator interface channel.
Description
Technical field
The present invention relates generally to the digital x-ray imaging and relate more particularly to be used to equipment and the method for improving digital radiography (DR) detector and adjusting routine of using based on time sequencing film and/or computed radiography (CR) x radiation imaging system.
Background technology
DR relies on the photoresists lamella with trapped radiation exposure (radiation exposure) and therefore to produce and the substitute of the x radial imaging technology of the image of the internal physical feature of storage object.Use digital radiography, captive radiant exposure energy is converted into the electronic image data with pursuing pixel on the radiation-sensitive layer of digital x-ray detector, and these electronic image data are stored in subsequently and are used for follow-up reading and the demonstration on suitable electronic image display device in the memory circuitry.One of driving force of digital radiography success is can promptly make stored image visual and through data network described stored image is sent to one or more remote location to analyze for the radiologist and diagnose, and must not be developed and check at film, follow delay packed and that posted or produce when delivering to remote location by the postman.
DR is regarded as having some advantages than routine based on film and early stage computed radiography (CR) system.For instance, DR provides and obtains the radiographic images data and need not move after exposure, operation, handle or scan the ability of the image forming medium of any kind.Directly be used in the scene subsequently or observe and diagnosis at observer's work station of any networking rightly from DR receiver panel data downloaded.
To allow the exploitation of portable DR receiver panel, this portable DR receiver panel be battery powered and can carry out radio communication for control signal and view data in the improvement aspect performance, miniaturization and the encapsulation.Together with other advantages, this provides has the DR receiver panel that can design with the low section (low-profile) that the receiver size that is used to early stage film and CR system adapts.
Though the DR imaging system has advantage than early stage film and CR system, but replacing this early stage x ray system may be that cost is very high, limited the availability of DR system thus because hospital attempt to maximize they in older device investment and prolong its probable life.
In order to satisfy the demand of the improved performance that imaging is provided to DR, provide a plurality of companies of x x-ray apparatus that the improvement configuration that allows DR receiver panel to use with existing x ray parts, replacement film or CR magazine are provided.Yet existing improvement project has one or more restriction, because:
(a) they do not allow to use simultaneously the receiver of early stage type and newer DR panel.Existing hardware is converted to fully that DR uses but it is dissatisfactory stoping the improvement of the use of film or CR receiver, because film and CR medium both have specific strong point and remain preferred in the imaging situation of some types.Keep using the ability of imaging system and allow to use the improvement project of DR receiver will have advantage with film or CR receiver.
(b) they do not make the improved influence to system hardware minimize.The standard (regulatory) of x x-ray apparatus required to make distorts internal circuitry or connection is very undesirable, such as for a plurality of improvement projects desired those.The reshuffling of the invasive (invasive) of x ray control panel may make described device existing check and approve or authenticate invalid or in some cases even may specification violation rule and constraint.
(c) they do not make to the change of workflow and to the influence of patient care and minimize.Suitable improvement project should influence the new capability that increases the DR imaging under the situation that is used for position patient and the existing practice that is used to obtain to expose as small as possible.
Therefore, though various improvement projects are suggested, still there is improved demand to DR, this DR improves less or not have influence, improve invasive minimum with respect to this DR of parts of existing x ray system to existing hardware influence, and does not limit the early stage film of described system use and the ability of CR image forming medium.
Summary of the invention
The objective of the invention is to improve the technology of diagnosing image.The invention provides be used to improve existing based on film or CR x radiation imaging apparatus to use the method and apparatus of DR receiver acquisition x ray image.The improvement connection device is provided, and it is adjusted described x radiation imaging apparatus and uses for the DR receiver.Described equipment be provided for transmitting go to and from the receiver interface channel of the signal of described digital radiography receiver, be used at least one input exposure signal is routed to the operator interface channel of described improvement connection device from operator's control and the G-interface channel that is used at least one output exposure signal is sent to the x ray generator.Described equipment responds input exposure signal on the described operator interface channel by started resetting of described digital radiography receiver on described receiver interface channel before on the described G-interface channel described output exposure signal being sent to described x ray generator.
Another object of the present invention provides the improvement project of Noninvasive substantially, reduces or eliminates and need be checked device or the probability of authentication again by regulator (regulatory authority).
Another object of the present invention provides except newer DR receiver panel and allows x ray system user to use the improvement project of one or more early stage image forming medium type.
These purposes only are presented by the mode of schematic example, and this type of purpose can be the example of one or more embodiment of the present invention.The purpose and the advantage of other expectations that realize naturally by disclosed the present invention can be expected by those skilled in the art or can become it will be apparent to those skilled in the art that.The present invention is defined by the claim of enclosing.
Provide and be used for obtaining the method for image by using the digital radiography receiver at the x of the type that is arranged to film or computed radiography radiation imaging system.Described method comprises: the improvement connection device is provided, and described improvement connection device is adjusted described x radiation imaging system in the following manner and is used for described digital radiography receiver: (a) be formed for transmitting and go to and from the receiver interface channel of the signal of described digital radiography receiver; (b) be formed at least one input exposure signal is controlled the operator interface channel that is routed to described improvement connection device from the operator; And the G-interface channel that (c) is formed at least one output exposure signal is sent to from described improvement connection device the x ray generator of described x radiation imaging system; In response to the input exposure signal that on described operator interface channel, is routed, on described receiver interface channel, start resetting of described digital radiography receiver; And on described G-interface channel, described output exposure signal is sent to described x ray generator.
Be provided for the equipment of x radial imaging.This equipment comprises the interface unit that is mounted as to the improvement of x radiation imaging system.Described interface unit comprises: mode selector, described mode selector are used to be at least the image capturing that uses the digital radiography receiver and select first pattern to set and select second pattern for the image capturing that uses removable film or computed radiography magazine and set; Receiver interface channel, described receiver interface channel are used for and the communicating by letter of this digital radiography receiver; G-interface channel, described G-interface channel are used for and the communicating by letter of the x ray generator of this system; That operator interface channel, described operator interface channel are used for is at least one first to receive from the operator with communicating by letter of operator control, ready signal and one second, exposure signal; And the control logic processor of programming, when described first pattern is set when selected, the control logic processor of described programming responds this second, exposure signal from described operator interface channel by started resetting of this digital radiography receiver on described receiver interface channel before the x ray generator that on the described G-interface channel exposure signal is sent to this system.
Description of drawings
According to following description more specifically in the face of the embodiments of the invention shown in the accompanying drawing, aforementioned and other purposes, feature and advantage of the present invention will be conspicuous.The element of described accompanying drawing must not be oriented relative to one another to ratio.
Figure 1A shows the sketch map of conventional x radiation imaging system.
Figure 1B illustrates the definition status of using the conventional x radiation imaging system with removable film or CR medium.
Fig. 2 illustrates the definition status of using digital radiography detector.
Fig. 3 shows the sketch map of the x radiation imaging system that is modified according to one embodiment of present invention.
Fig. 4 shows the sketch map of the improvement imaging system that wireless embodiment according to the present invention is modified.
Fig. 5 A is routine operation person's control station schematic block diagram of (such as employed in the system of Fig. 1).
Fig. 5 B is to use the schematic block diagram of embodiment of the improvement connection device that is assemblied in switch on the panel or that fasten of existing imaging device.
Fig. 5 C is to use being used in the equipment of external switch independently and forbidding Fig. 5 B to prepare schematic block diagram with the embodiment of the improvement connection device of the existing switch of exposure function.
Fig. 5 D be have to existing with improve to prepare and the schematic block diagram of the alternate embodiments of the improvement connection device that is connected of exposure switch.
Fig. 5 E is the schematic block diagram that switch controller independently is assemblied in the embodiment of the improvement connection device on the described operator's console.
Fig. 5 F is the schematic block diagram that switch controller independently is assemblied in the embodiment of the improvement connection device that is used to control single two formulas (two-position) button on the operator's console.
Fig. 6 shows the sketch map of the configuration, parts and the signal processing that are used for employed in one embodiment of the invention interface and control circuit.
Fig. 7 A shows the axonometric chart of the relative position of preparation/exposure button on the control station of routine.
Fig. 7 B is the axonometric chart that is used to have the operator's console of the improved x radiation imaging system that uses button control equipment in one embodiment of the invention.
Fig. 8 be button control equipment internal part axonometric chart and show them and the relation on the surface of operator's console.
Fig. 9 A is the schematic side elevation of immobilized button control part of appliance position in idle condition.
Fig. 9 B shows the schematic side elevation that is used for the button control part of appliance position of control panel press-button actuated to the first setting.
Fig. 9 C shows the schematic side elevation that is used for the button control part of appliance position of control panel press-button actuated to the second setting.
Figure 10 is the axonometric chart of alternate embodiments of button control equipment that is used to have the control panel of double-button.
The specific embodiment
Be the detailed description of the preferred embodiments of the present invention below, with reference to the drawings, wherein identical reference number identifies the similar elements of the structure in each width of cloth of some figure.
Figure 1A is illustrated in the conventional x radiation imaging system 10 that image is provided on the removable media such as removable film or CR magazine 16.Operator's console 12 is arranged in control room 14, is illustrated below dotted line in Figure 1A and follow-up figure.X ray generator 22 is installed in the radiation chamber 20, is illustrated more than described dotted line.Magazine 16 is placed on patient 18 back and is used to obtain image.By providing exposure energy from x ray generator 22 controlled x ray tubes 24.But be not illustrated the exposure control apparatus that also has that is widely used in conventional equipment, such as automatic exposure control (AEC) device, it is measured exposure levels and stop exposure when the target emanation level has been reached.
With reference to Figure 1A and with reference to the timing diagram of Figure 1B, be operably connected to operator's console 12 and can be in any in three kinds of states, as being controlled by x ray technology person as operator's gauge tap 28 of the part of operator's console 12 operation.Before patient's setting and imaging, described system is in idle condition.Be used for imaging in case patient correctly is placed, magazine 16 is in place simultaneously, and the operator just promotes (push) switch 28 to advance to SBR.This order x ray system is from ready as exposure on the horizon.In most systems, push (press) described preparation switch or input command and make the rotor of x ray tube 24 quicken, as preparation process to enter SBR.For instance, described operator can be provided with and keep described SBR, waits for that simultaneously patient loosens or enters the optimum position that is used for imaging.Under described SBR itself can continue from several seconds to certain situation more than 1 minute.
When described SBR was done, operator one made switch 28 advance to exposure status or position, just can obtain exposure.
With this order, in case condition is suitable for imaging, the operator sets switch 28 and advances to exposure status.Be used for the response of x ray generator control circuit system, have moment delay period D1, typically be no more than about 1 millisecond.Electric current is gone to the anode of x ray tube 24 subsequently, its emission needed ionizing radiation that is used to expose.When end exposure, such as after default time of exposure or by the AEC device or as previously described during other exposure sensing apparatus signallings, rotor and anode current both are de-energized and idle condition is restarted.
As known to the x radial imaging professional, a plurality of additional conditions also must be satisfied to allow anode current to flow to described x ray tube.For instance, this comprises following demand: device interlocking condition is satisfied and the rotor condition is acceptable.
Use different x ray systems, switch 28 is differently implemented one of in many ways.In some systems, switch 28 is two formula buttons that are assemblied on the operator's console 12.In other system, switch 28 be implemented as two buttons of row or on the operator's console 12 or near other controls, perhaps be implemented as the hand switch of fastening with two formula press buttones, it is connected by the rope that allows operator more freely to move.
For the improvement of removable magazine 16 that the conventional system that allows DR receiver panel to replace Figure 1A as the x ray detector is provided, prepare and the timing of exposure status must correspondingly change.Be used to obtain exposure image in order correctly to regulate its sensing part, DR receiver panel requires at least one reset cycle.Reset and remove any residual noise, such as so-called " dark noise ", so that received next exposure signal is correctly read from described DR receiver panel pixels.Only just should provide described exposure energy after being identified resetting.Also advantageously: regularly the exposure integrated (exposure integration) of described panel is so that it is immediately following after resetting, rather than further is delayed.
The timing diagram of Fig. 2 illustrates the order of the preparation that improves embodiment according to DR according to the present invention and exposure signal and relevant operation.As shown, push the switch activated x ray tube of described preparation rotor accelerated spiral (spin-up) for the conventional timing among Figure 1B.In addition, this also can change the power mode of DR receiver panel, especially for wireless, battery powered DR detector.In the embodiment of Fig. 2, push described preparation switch DR receiver panel power and be set to high level from low or stand-by level.During pushing described preparation switch and pushing cycle between the described exposure switch, from about 2-15 second, described operator typically observes patient and keeps static to guarantee described patient between exposure period usually.
Push described exposure switch reset signal is sent to described DR receiver panel.The cost that resets typically of DR detector image sensing Circuits System is no more than about 300 milliseconds time, is illustrated as time cycle D2 in Fig. 2.Optionally confirmation signal is received from described DR receiver panel when being done resetting.In one embodiment, described resetting confirmed to be required so that the x ray is generated and anode current is not provided up to receiving the positive acknowledgment of replying the position from described DR receiver panel.This helps to prevent also not get ready at the DR panel and makes patient be exposed to the x x radiation x when forming image.The anode current that drives the generation of x ray is provided for cycle D3, and this cycle D3 is no more than about 500 milliseconds usually.The integrated cycle of described DR receiver panel typically is about 1 second and just beginning before anode current is provided, and extends beyond the time that anode current is stopped.In Fig. 2, cycle D1 causes and represents to be integrated in that by x ray generator control circuit system time and x ray that DR receiver panel place begins are launched the fixed time interval between time of (anode current conducting) once more.
Should be noted that: the timing diagram of Fig. 2 is exemplary and allows within the scope of the invention a plurality of modifications.For instance, reset signal alternately can be provided from preparing be depressed moment of (depress) of switch, so that exposure and integrated can the beginning more quickly after depressing described exposure switch.Cycle time delay D1, D2 and D3 on the persistent period, can be different from described those.Regularly (timing), rather than reset certainly and confirm to be used to selecting after, will expose the of short duration cycle of delay (that is, with regard to Fig. 2 with the anode current on-delay) so that permission was used for the interval that DR receiver panel resets before continuation by the operator.Yet as previously mentioned, to require the actual affirmation that resets from DR receiver panel itself may be more favourable and can help to prevent to exist the exposure that is wasted at device problem or difficult communication place.
As can by the timing diagram of Fig. 2 is understood with conventional regularly the comparing shown in Figure 1B like that, the improvement task that DR receiver panel is used for existing film or CR medium system has the complexity of increase and measures: change sequential to allow enough delays and be used for resetting of DR receiver panel sensing circuit system and integrated cycle of described DR receiver panel circuit system is regularly overlapped for the cycle that just is generated with x ray therein.Realize that this change also requires and the communicating by letter of DR panel, both in order to starting reset operation, and alternatively, also in order to the reception completed affirmation that resets.Background technology part mentions, preferably is not invasive to the modification of existing apparatus as before, such as the part that requires existing x ray operator control station to have to be replaced or in inside by rewiring.As another complex situations again, followingly be considered to disadvantageous: make existing operation scheme invalid so that in case described improvement be mounted and have only DR receiver panel to be used and make that therefore film or CR medium are unavailable.Even more advantageously: allow arbitrary removable media, i.e. film or CR magazine, the perhaps selectable use of DR receiver panel.
The sketch map of Fig. 3 illustrates the improvement imaging system 50 that replaces magazine 16 and the x x ray exposure x is regularly carried out necessary change with DR receiver panel 40 according to one embodiment of the present of invention of using wired connection.Interface and control circuit 30 are communicated by letter between the miscellaneous part of DR receiver panel 40 and this system.View data itself is gone to imaging processor 32, such as the computer or the work station of communicating by letter with display 34.G-interface channel 70 is connected to operator's console 12 by connection device 38 with interface and control circuit 30 and is used to and prepares and exposure signal provides appropriate timing.Operator's gauge tap 29 is connected to interface by operator interface channel 72 and control circuit 30 is used for operator's control, replaces employed switch 28 in the conventional system of Figure 1A.Switch 29 can be as the switch of fastening among Fig. 3 or can be configured to mechanically control the existing switch that is installed on the control station 12.High speed data transmission link by connection of Ethernet cable or other types provides DR receiver interface channel 42 between DR receiver panel 40 and interface control circuit 30, and DR receiver interface channel 42 can comprise other control signal wires that are used to send and receive repositioning information and order.
That the sketch map of Fig. 4 illustrates is alternative, the improvement imaging system 50 among the non-embodiment that fastens.Herein, wireless communication link is provided for the receiver interface channel 42 between DR receiver panel 40 and interface and the control circuit 30.Transceiver 52 is connected to DR receiver panel 40 or is provided as the part of DR receiver panel 40 and communicates by letter with transceiver 48, and this transceiver 48 is connected to interface and control circuit 30 or is provided as interface and the part of control circuit 30.In one embodiment, battery supply also is provided in DR receiver panel 40, is not used for operation so that require the outside wiring of panel.In another embodiment, have only to connect and need to the power line of DR receiver panel 40; Transmission channel to interface and control circuit 30 is wireless.
Fig. 3 and 4 also shows and is used to detect the optional pick off 56 of indication from the level of the anode current of effective x ray emission of x ray tube 24.Anode current sensing by pick off 56 can be used to indicate integrated should being terminated of signal at DR receiver panel 12 places.What should be observed is that the use of this extra pick off also can be carried out and may be preferred for additive method therefore in the mode of Noninvasive, for instance such as detecting or interrupting termination signal from the AEC device, as previously mentioned.
The schematic block diagram of Fig. 5 A illustrates switch 28 and how to be connected routinely so that preparation and exposure signal to be provided in operator's console 12.Panel 58 in the operator's console 12 is accepted signal from switch 28, the adapter 53 that this adapter 54 closely cooperates and communicates by letter with panel 58 by adapter 54.As already discussed, can provide switch 28 by single two formula switches, one of them position is used for ready signal, and another position is used for exposure signal; Perhaps provide 28, one switch elements of switch to be used for ready signal by a plurality of switch elements, another switch element is used for exposure signal, shown in Fig. 5 A.Switch 28 can be assemblied on the panel or fasten, as previously mentioned.The schematic block diagram of Fig. 5 B, 5C, 5D, 5E and 5F illustrates the routine of operator's console 12 connections subsequently and arrange how to be changed in the different embodiment of connector apparatus 38.
With reference to 62 the embodiment of improving equipment among the figure 5B, the improvement that the switch 28 of primal system is used to connector apparatus 38 connects.On panel 58, adapter 54 is removed and adapter 54 is reconnected to interface and control circuit 30 to form operator interface channel 72 from adapter 53.Interface and control circuit 30 use the timing discussed with respect to Fig. 2 subsequently and needed delay to be provided and to be on the G-interface channel 70 at adapter 55 signal of being regulated are offered panel 58 from the signal of switch 28 in operator interface channel 72 adjusted.Switch 28 in this type of embodiment can be mounted on the panel or fasten.In one embodiment, adapter 53 externally is mounted as jack or the socket that the switch 28 that is used to fasten connects, and the feasible improvement layout of connection device 38 that provides is direct especially.
Still with reference to figure 5B, optionally mode selector 68 is provided for interface control circuit 30 in one embodiment.Mode selector 68 can be used to the operation of the control logic in regulation interface and the control circuit 30, to allow the signal timing of first pattern shown in Figure 1A at removable media (film or CR magazine) when being used or allow the signal timing of second pattern shown in Figure 2 when DR receiver panel is used.The mode selector of other types can be provided, comprise computer instruction programming or operator's input of specifying arbitrary pattern for instance, import described computer instruction from the indicator of touch screen, keyboard, keypad (keypad) or mouse or other type.Use mode selector switch or other model selection mechanisms, identical x radiation imaging apparatus can be provided as picture on the removable media or on DR digital receiver panel, allows the operator to select preferred imaging pattern.
With reference to 62 the alternative embodiment of improving equipment shown in the figure 5C, existing switch or existing a plurality of switch 28 are not used to the improvement of connection device 38 and arrange.At this, adapter 54 separated with panel 58 or with its bypass, and overcover 66 is used on the switch 28, prevent that these switches from being seen and being used.The switch of fastening 29 on operator interface channel 72 replaces will preparing and exposure signal sends to the switch of interface and control circuit 30 as being used for.Connection from interface and control circuit 30 to internal control plate 58 is provided on G-interface channel 70.
The schematic block diagram of Fig. 5 D illustrates 62 the alternative embodiment of improving equipment, and wherein mode selector 68 will be not necessarily, because switch 28 and 29 boths are connected.In this embodiment, G-interface channel 70 is at second adapter 53 ' locate to be connected to panel 58.Overcover 66 is removable or it has the door of access or panel, allows the technician to use switch 28 to obtain image from removable film or CR medium when image is exposed; For the imaging of DR receiver panel, the technical staff uses switch 29.
62 another the alternative embodiment again of improving equipment is illustrated in Fig. 5 E.This embodiment of connector apparatus 38 assembles switch controller 60 on pair of switches 28.Switch controller 60 is mechanically controlled each switch 28 and is used for sending to panel 58 respectively preparing and exposure signal.The operator uses one or two switches 29 to send and prepares and exposure signal.Switch 29 can be mounted or fasten independently, perhaps can be installed on the switch controller 60.Use this embodiment not need inner rewiring; Use this embodiment, switch controller 60 comprises the actuator of appropriate type, and for instance such as one or more solenoid, it optionally is activated with the existing switch 28 of operation under the control of interface and control circuit 30.Therefore G-interface channel 70 is used to control existing press button in this embodiment.In one embodiment, overcover 66 can be removed for when wish to use switch 28 to obtain image on removable film or CR magazine rather than use when using one or two switches 29 to use DR receiver panel to obtain image.
The block diagram of Fig. 5 F illustrates the parts among 62 the embodiment of improving equipment that uses switch controller 60, and switch controller 60 is installed on the operator's console 12 and the operation of control knob switch 28.G-interface channel 70 is connected to switch controller 60, and based on the position of the set switch 29 of operator and the actuator on switch controller 60 provides signal, and described signal impels press button 28 to enter to prepare or exposure position, as previously mentioned.Switch 29 can be mounted or fasten independently, perhaps can be installed on the switch controller 60, makes that operator interface channel 72 and G-interface channel 70 can be along identical elementary paths between switch controller 60 and interface and the control circuit 30.Use this embodiment not need inner rewiring.The back will provide the more details about the configuration and the operation of this device.
The schematic block diagram of Fig. 6 shows 62 the functional part of improving equipment with interface and control circuit 30 with subsidiary details (in additional detail) and is connected with signal, lay special stress on its parts because they are with to improve timing controlled relevant.The improving equipment sketch map of 62 parts substantially draws in the dotted line boundary.Control logic processor 46 can be microprocessor or have other logic processing devices of storage programming instruction or can be implemented in hardware, and it is for preparing and exposure stage is controlled (run) time sequencing, as before with respect to Fig. 2 described.Be directed into control logic processor 46 from the preparation of switch 29 and exposure signal and be used for the periodic delay of exposure signal, as described earlier like that.Ready signal only has among the embodiment of function of excitation x ray rotor (as shown in Figure 2) therein, and ready signal alternately can Bypass Control logic processor 46, as among Fig. 6 with dotted line connect indicated.
Continuation is with reference to figure 6, and communication interface circuit 44 provides required interface, is used to have control and order data on the receiver interface channel 42 of DR receiver panel 40.Communication interface circuit 44 is used to send reset command, receive the affirmation finished resetting and stop integrated in the place that pick off 56 or other devices are used.The additional Circuits System that is not illustrated in Fig. 6 will be used to obtain view data and be used for this view data is continued to be delivered to imaging processor 32 and display 34 from DR receiver panel 40 by interface and control circuit 30, as before shown in Fig. 3 and 4.
As shown in Figure 6, use the connection device 38 of the layout of those parts shown in Fig. 5 B, 5C, 5D, 5E and 5F on G-interface channel 70, will prepare and exposure signal offers operator's console 12 according to the control logic on interface and the control circuit 30.As previously mentioned, the connection between connection device 38 and the operator's console 12 can be any one in the various ways.
The three-dimensional icon of Fig. 7 A goes out to have the conventional control station 12 of single preparation/exposure button control 28.The axonometric chart of Fig. 7 B illustrate subsequently have as be installed to operator's console 12 on the embodiment of the same switch controller 60 of a class button control equipment.Switch controller 60 has overcover 66 and optionally inserts panel (access panel) 74, and it is in the retracted position in Fig. 7 B, and this switch controller 60 allows the selection to alternative timing mode in one embodiment.By-pass switch 78 inserts panel 74 but spendable by sliding backward.Push by-pass switch 78 and allow operator's bypasses to use the operation of the button control equipment of switch controllers 60, this is a kind of selection that is used to specify pattern when CR or film receiver alternately are used to the imaging of x ray system.
Fig. 8 is mounted in some the axonometric chart in the internal part in the protectiveness outer shroud 66 of button control equipment (being the switch controller 60 of Fig. 7 B in this embodiment), and the relation on the surface of they and operator's console 12 is shown.To the use of switch 29 (as for example shown in Fig. 5 F and Fig. 6), the internal mechanism operation of switch controller 60 is to bring in and impel button 28 to one of its operating position by moving one of the rocking arm 84 that is supported at pivot 86 places based on the operator.(against) press button 28 needed power are provided to provide for actuator 80 and 82 cooperations.In one embodiment, actuator 80 and 82 is solenoids. Actuator 80 and 82 alternative type comprise for instance rotor drive shaft, driving screw or cam or magnetically, air effect ground or use air pressure and driven other actuating devices.
The order of Fig. 9 A, 9B and 9C shows the mechanical interaction of switch controller 60 parts in the embodiment of Fig. 8, and similarly overcover 66 is removed.In order to provide the notion that is used for the relative quantity that press button 28 needed switches move, the exemplary value of the position of switch 28 is as follows in a typical embodiment:
| Selecteed state | The scope that switch 28 moves |
| Idle | 0-1.3 millimeter |
| Prepare | 1.5-2.6 millimeter |
| Exposure | 5.5-6.7 millimeter |
Fig. 9 A is illustrated in immobilized button control equipment in the idle condition.Pivot 86 is illustrated in the rectangle of delineate to indicate this point to keep static by overcover 66, is removed for this overcover 66 of Fig. 9 A-C.
Fig. 9 B illustrates to be used for control panel press-button actuated to the first is set, is the schematic side elevation of preparing switch controller 60 component locations of setting for most of x ray system.Shown in arrow by a dotted line like that, actuator 82 is energized, and upwards draws on the counterpart of rocking arm 84.Actuator 80 is de-energized.Axle 88 uses the leverage from pivot 86 to provide support upwards to be used for mobile rocking arm 84.The mechanical interface (mechanical interface) that leans the friction that having of button 28 reduce is provided at the wheel 90 of the end of rocking arm 84.
The sketch map of Fig. 9 C illustrates and is used for control panel press-button actuated to the second is set, is switch controller 60 component locations of exposure settings.At this, actuator 80 is energized, and upwards draws at the end of rocking arm 84.Actuator 82 keeps being energized, but has been in the end of its travel path.In this embodiment, rocking arm 84 lifts axle 88 (lift off) when it is pivoted to this next one position.
In using a solenoidal embodiment, two solenoidal uses are favourable than the use of single actuator.May be difficult to obtain to finish for each signal location the single solenoid of whole travel paths.In addition, each solenoid has shirtsleeve operation in respect to the described embodiment of Fig. 9 A-9C, only have the state that is energized fully or is de-energized.
The embodiment of the alternative switch controller 60 of Figure 10 illustrates the layout of internal part, wherein the button control equipment of switch controller 60 is installed on the panel with independently preparation and exposure switch, as before with reference to figure 5E described, rather than be used for the embodiment of the single button of the device shown in Fig. 7 B-9C.Similarly, switch controller 60 has each that two actuators 80 and 82, are used for controlling described two switches 28.The preparation switch 29 excitation actuators 80 of pushing the left side among the embodiment of Figure 10 are to be used to push the preparation switch 28 on the control station 12.The exposure switch 29 of pushing right side among this embodiment sends signal to the control logic processor 46 (Fig. 5 E) in interface and the control circuit 30.The drive current that excitation actuator 82 is used to push exposure switch is transmitted by control logic processor 46.Exposure signal is then gone to panel 58.
Described the present invention with reference to presently preferred embodiment particularly, but will be appreciated that variation and revise and to be implemented within the spirit and scope of the present invention.For instance, various types of cables connect can be used to form each interface channel, in this case, provides preparation and exposure signal from interface and control circuit 30 on G-interface channel 70.Can on any one interface channel 42,70 and 72, use wired or radio communication from interface and control circuit 30.
List of parts
| 10 | The x |
| 12 | Operator's |
| 14 | The |
| 16 | Based on film or the computed |
| 18 | |
| 20 | Radiation chamber |
| 10 | The x |
| 22 | The |
| 24 | The |
| 28 | Operator's |
| 29 | Operator's |
| 30 | Interface and |
| 32 | |
| 34 | |
| 38 | |
| 40 | |
| 42 | DR |
| 44 | |
| 46 | The |
| 48 | Be connected to the transceiver of interface and |
| 50 | |
| 52 | Be connected to the transceiver of |
| 53，53’，54，55 | |
| 56 | The sensor of the anode current in 24 |
| 58 | |
| 60 | On- |
| 62 | Improve equipment |
| 10 | The x |
| 66 | |
| 68 | |
| 70 | The G- |
| 72 | |
| 74 | |
| 78 | By- |
| 80，82 | |
| 84 | |
| 86 | Pivot |
| 88 | |
| 90 | Wheel |
| D1 | Delay period after 28 the exposure status |
| D2 | The reset cycle of |
| D3 | The cycle that is used for the anode current of |
Claims (18)
1. one kind is used for obtaining the method for image at the x of the type that is arranged to film or computed radiography radiation imaging system by using the digital radiography receiver, and described method comprises:
The improvement connection device is provided, and described improvement connection device is adjusted described x radiation imaging system in the following manner and is used for described digital radiography receiver:
Be formed for transmitting and go to and from the receiver interface channel of the signal of described digital radiography receiver;
Be formed at least one input exposure signal is routed to from operator's control the operator interface channel of described improvement connection device; And
Be formed at least one output exposure signal is sent to from described improvement connection device the G-interface channel of the x ray generator of described x radiation imaging system;
In response to the described input exposure signal that on described operator interface channel, is routed, on described receiver interface channel, start resetting of described digital radiography receiver; And
On described G-interface channel, described output exposure signal is sent to described x ray generator.
2. the method for claim 1 is characterized in that, wherein forms operator interface channel and comprises hand held switch is provided.
3. the method for claim 1 is characterized in that, described method also comprises in response to described input exposure signal, and is integrated in described digital radiography receiver place startup picture signal before transmitting described output exposure signal.
4. the method for claim 1 is characterized in that, described method also comprises provides the mode selector of selecting alternative time sequencing, and wherein said input exposure signal directly is provided as described output exposure signal.
5. the method for claim 1 is characterized in that, described method also comprises sensing x ray anodes levels of current during image exposure at least.
6. method as claimed in claim 5 is characterized in that, described method comprises that also the signal that the x ray anodes levels of current according to described sensing terminates on the described digital radiography receiver is integrated.
7. the method for claim 1 is characterized in that, wherein forms the receiver interface channel and also is included between described improvement connection device and the described digital radiography receiver wireless communication link is provided.
8. the method for claim 1, it is characterized in that, form wherein that operator interface channel comprises that first adapter in making at least one gauge tap and being included in described x radiation imaging system separates and described at least one gauge tap is connected to second adapter that is included in the described improvement connection device.
9. the method for claim 1 is characterized in that, wherein forms operator interface channel and comprises the device that at least one front panel switch in the described x radiation imaging system of covering is installed.
10. the method for claim 1 is characterized in that, described method receives the affirmation that resets from described digital radiography receiver before also being included in and transmitting described output exposure signal.
11. an equipment that is used for the x radial imaging, described equipment comprises:
As to the improvement of x radiation imaging system and the interface unit that is mounted, described interface unit comprises:
Mode selector, described mode selector are used to be at least the image capturing that uses the digital radiography receiver and select first pattern to set and select second pattern for the image capturing that uses removable film or computed radiography magazine and set;
Receiver interface channel, described receiver interface channel are used for and the communicating by letter of this type of digital radiography receiver,
G-interface channel, described G-interface channel are used for the communication of the x ray generator of type systematic therewith;
Operator interface channel, described operator interface channel are used for and the communicating by letter of operator control, be used for from the operator receive at least the first, ready signal and second, exposure signal; And
The control logic processor of programming, when described first pattern is set when selected, the control logic processor of described programming responds this second, exposure signal from described operator interface channel by started resetting of this type of digital radiography receiver on described receiver interface channel before the x ray generator that on the described G-interface channel exposure signal is sent to this type systematic.
12. equipment as claimed in claim 11 is characterized in that, wherein said receiver interface channel comprises wireless communication link, is used between described interface unit and this type of digital radiography receiver.
13. equipment as claimed in claim 11 is characterized in that, wherein said interface unit also comprises the pick off of the x ray anodes levels of current that is used for this type systematic.
14. equipment as claimed in claim 11 is characterized in that, wherein said interface unit also comprises pick off, and being used for provides indication x the signal of ray emission according to the levels of current of sensing.
15. equipment as claimed in claim 11 is characterized in that, wherein said mode selector provides instruction to described control logic processor.
16. equipment as claimed in claim 11, it is characterized in that wherein said G-interface channel also comprises at least the first switch on the control panel that is used to hide this type systematic and the switch controller that is used for controlling according to the setting of second switch by the operator setting of described at least first switch.
17. equipment as claimed in claim 16 is characterized in that, wherein said second switch is installed on the described switch controller.
18. equipment as claimed in claim 16 is characterized in that, wherein said switch controller also comprises at least one actuator, described actuator by on the described G-interface channel from the signal controlling of described interface unit.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
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| US98914407P | 2007-11-20 | 2007-11-20 | |
| US98915107P | 2007-11-20 | 2007-11-20 | |
| US27196207A | 2007-11-20 | 2007-11-20 | |
| US60/989,151 | 2007-11-20 | ||
| US12/271,962 | 2007-11-20 | ||
| US60/989,144 | 2007-11-20 | ||
| PCT/US2008/012872 WO2009067189A1 (en) | 2007-11-20 | 2008-11-18 | Firing delay for retrofit digital x-ray detector |
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| Publication Number | Publication Date |
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| CN101868181A true CN101868181A (en) | 2010-10-20 |
| CN101868181B CN101868181B (en) | 2012-11-07 |
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| CN2008801174465A Active CN101868181B (en) | 2007-11-20 | 2008-11-18 | Firing delay for retrofit digital x-ray detector |
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