MOBILE CT IMAGING SYSTEM COMPRISING A MOBILE CT IMAGING MACHINE WITH AN ON-BOARD MOTORIZED BED AND/OR AN ON-BOARD ULTRASOUND IMAGER

Abstract

An imaging system for imaging an object, the imaging system comprising: an imaging unit comprising a housing having a center opening for receiving the object to be imaged; and a patient support for supporting the object to be imaged, the patient support being pivotally mounted to the housing, wherein the patient support is configured to pivot between (i) a first, folded configuration in which the patient support is disposed close to the housing, whereby to facilitate transport of the imaging unit, and (ii) a second, unfolded configuration in which the patient support is aligned with the center opening, whereby to facilitate imaging of the object on the patient support.

Claims

1. An imaging system for imaging an object, the imaging system comprising: an imaging unit comprising a housing having a center opening for receiving the object to be imaged; and a patient support for supporting the object to be imaged, the patient support being pivotally mounted to the housing, wherein the patient support is configured to pivot between (i) a first, folded configuration in which the patient support is disposed close to the housing, whereby to facilitate transport of the imaging unit, and (ii) a second, unfolded configuration in which the patient support is aligned with the center opening, whereby to facilitate imaging of the object on the patient support.

2. The imaging system according to claim 1 further comprising a powered system for moving the patient support between its folded configuration and its unfolded configuration.

3. The imaging system according to claim 1 further comprising at least one telescoping arm for moving the patient support between its folded configuration and its unfolded configuration.

4. The imaging system according to claim 3 wherein the at least one telescoping arm is pivotally mounted to the housing.

5. The imaging system according to claim 1 wherein the patient support comprises two portions pivotally connected to one another at a hinge.

6. The imaging system according to claim 1 further comprising a plurality of powered rollers for advancing the patient support into, and out of, the center opening of the housing.

7. The imaging system according to claim 6 further comprising a plurality of roller conveyors for stabilizing the patient support while the patient support is advanced into, and out of, the center opening of the housing.

8. The imaging system according to claim 1 further comprising at least one deployable foot for stabilizing the imaging system.

9. The imaging system according to claim 8 wherein the at least one deployable foot is pivotally mounted to the housing, whereby to be capable of assuming (i) a deployed configuration in which the at least one deployable foot engages a floor surface upon which the imaging system is disposed, and (ii) a storage configuration in which the at least one deployable foot does not engage the floor surface upon which the imaging system is disposed.

10. The imaging system according to claim 1 further comprising a contrast injector mounted to the housing.

11. The imaging system according to claim 10 further comprising a boom arm for movably mounting the contrast injector to the housing.

12. The imaging system according to claim 10 further comprising a cabinet for storing the contrast injector.

13. The imaging system according to claim 1 further comprising an ultrasound imager.

14. The imaging system according to claim 13 wherein the housing comprises a cradle for receiving the ultrasound imager.

15. The imaging system according to claim 13 further comprising a visual display for displaying data obtained by the ultrasound imager.

16. The imaging system according to claim 1 wherein the housing comprises a transport mechanism for moving the imaging unit, wherein the transport mechanism comprises (i) a gross movement mechanism for transporting the imaging unit across room distances, and (ii) a fine movement mechanism for moving the imaging unit precisely, relative to a patient, during scanning.

17. The imaging system according to claim 1 wherein the imaging unit comprises a CT imaging unit.

18. A method for imaging an object, the method comprising: providing an imaging system comprising: an imaging unit comprising a housing having a center opening for receiving the object to be imaged; and a patient support for supporting the object to be imaged, the patient support being pivotally mounted to the housing, wherein the patient support is configured to pivot between (i) a first, folded configuration in which the patient support is disposed close to the housing, whereby to facilitate transport of the imaging unit, and (ii) a second, unfolded configuration in which the patient support is aligned with the center opening, whereby to facilitate imaging of the object on the patient support; positioning the patient support in its second, unfolded configuration; positioning an object on the patient support while the patient support is in its second, unfolded configuration; moving the object into the central opening; and imaging the object in the central opening.

19. The method according to claim 18 further comprising positioning the patient support in its second, unfolded configuration and transporting the imaging system.

20. The method according to claim 18 wherein the imaging system further comprises a plurality of powered rollers for moving the object into, and out of, the center opening of the housing.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0035] These and other objects and features of the present invention will be more fully disclosed or rendered obvious by the following detailed description of the preferred embodiments of the invention, which is to be considered together with the accompanying drawings wherein like numbers refer to like parts and further wherein:

[0036] FIGS. 1 and 2 are schematic views showing the exterior of an exemplary CT imaging machine;

[0037] FIG. 3 is a schematic view showing various components in the torus of the exemplary CT imaging machine shown in FIGS. 1 and 2;

[0038] FIG. 4 is a schematic view showing an exemplary fixed CT imaging machine and a motorized bed;

[0039] FIGS. 5 and 6 are schematic views showing an exemplary transport assembly for an exemplary mobile CT imaging machine;

[0040] FIG. 7 is a schematic view showing another exemplary transport assembly for an exemplary mobile CT imaging machine;

[0041] FIG. 8 is a schematic view showing still another exemplary transport assembly for an exemplary mobile CT imaging machine;

[0042] FIGS. 9-13 are schematic views showing a novel mobile CT imaging system formed in accordance with the present invention, the mobile CT imaging system comprising a mobile CT imaging machine with an on-board motorized bed;

[0043] FIGS. 14-17 are schematic views showing details of the powered rollers used to move the on-board motorized bed of the novel mobile CT imaging system of FIGS. 9-13;

[0044] FIG. 18 is a schematic view showing the on-board motorized bed of novel mobile CT imaging system of the present invention in a scanning configuration;

[0045] FIG. 19 is a schematic view showing how the novel mobile CT imaging system of the present invention may further comprise a contrast injector;

[0046] FIGS. 20-22 are schematic views showing deployable feet for stabilizing a mobile CT imaging system when the patient is on a cantilevered bed; and

[0047] FIG. 23 is a schematic view showing a mobile CT imaging system formed in accordance with the present invention, the mobile CT imaging system comprising a mobile CT imaging machine with an on-board ultrasound imager.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Novel Mobile CT Imaging System Comprising a Mobile CT Imaging Machine with an On-Board Motorized Bed

[0048] Looking first at FIGS. 9-13, there is shown a novel mobile CT imaging system 100 comprising a mobile CT imaging machine 105 comprising an on-board motorized bed 110.

[0049] Novel mobile CT imaging machine 105 may be the aforementioned mobile CT imaging machine 5B (i.e., where free-rolling castors 62 are used to move the system quickly between locations, and centipede belt drives 63 are used to move the machine during scanning); or novel mobile CT imaging machine 105 may be the aforementioned mobile CT imaging machine 5C (i.e., where powered mecanum wheels 70 (also known as “omni” wheels or “ilon” wheels) are used to move the machine quickly between locations, and powered wheels 63C are used to move the machine during scanning); or novel mobile CT imaging machine 105 may be the aforementioned mobile CT imaging machine 5D (i.e., where so-called “Liddiard” wheels 76 are used to move the machine both quickly between locations and during scanning); or novel mobile CT imaging machine 105 may be any other mobile CT imaging machine capable of moving between locations before and/or after scanning.

[0050] On-board motorized bed 110 is movably (e.g., pivotally) mounted to mobile CT imaging machine 105. More particularly, in a preferred form of the invention, on-board motorized bed 110 is pivotally mounted to mobile CT imaging machine 105 such that on-board motorized bed 110 is capable of assuming: (i) a first “folded” configuration (which also may be referred to herein as a “transport” configuration) (see FIGS. 9 and 10) in which on-board motorized bed 110 is folded and sits close to the body of mobile CT imaging machine 105, whereby to facilitate movement of mobile CT imaging system 100 within a healthcare environment, and (ii) a second “unfolded” configuration (which also may be referred to herein as a “scanning” configuration) (see FIGS. 11-13) in which on-board motorized bed 110 is unfolded and aligned with the center opening 20 of the mobile CT imaging machine 105, whereby to facilitate scanning of a patient lying on on-board motorized bed 110. If desired, on-board motorized bed 110 may be locked to mobile CT imaging machine 105 when the on-board motorized bed 110 is in its first, folded configuration.

[0051] Furthermore, if desired, on-board motorized bed 110 may include powered systems for moving on-board motorized bed 110 between its first “folded” configuration and its second “unfolded” configuration, or on-board motorized bed 110 may include manual systems for moving on-board motorized bed 110 between its first “folded” configuration and its second “unfolded” configuration.

[0052] In one preferred form of the invention, on-board motorized bed 110 comprises two patient supports 115 which are pivotally connected to one another at a hinge 120. On-board motorized bed 110 is movably mounted to mobile CT imaging machine 105 by means of telescoping arms 125 which connect patient supports 115 to the base of mobile CT imaging machine 105, as will hereinafter be discussed in further detail. More particularly, telescoping arms 125 comprise a first end 130 pivotally mounted to a mount 135 attached to base 15 of mobile CT imaging machine 105, and a second end 140 which is pivotally mounted to hinge 120. In this way, retracting telescoping arms 125 causes on-board motorized bed 110 to assume its first “folded” configuration, and extending telescoping arms 125 causes on-board motorized bed 110 to assume its second “unfolded” configuration.

[0053] As seen in FIGS. 13-17, mobile CT imaging machine 105 is preferably configured with (i) powered rollers 145 which, when on-board motorized bed 110 is in its second “unfolded” configuration, grip on-board motorized bed 110 and advance on-board motorized bed 110 into, and out of, the center opening 20 of mobile CT imaging machine 105 during scanning of the patient, and (ii) roller conveyors 147 (FIGS. 14-16) which, when on-board motorized bed 110 is in its second “unfolded” configuration, provide a smooth path for on-board motorized bed 110 to move into, and out of, the center opening 20 of mobile CT imaging machine 105 during scanning of the patient. More particularly, powered rollers 145 are configured to rotate in a first direction in order to advance on-board motorized bed 110 into center opening 20 of mobile CT imaging machine 105, whereby to facilitate scanning of a patient (or object) disposed on top of on-board motorized bed 110. As on-board motorized bed 110 is drawn into (and through) center opening 20 of mobile CT imaging machine 105, telescoping arms 125 are configured to pivot relative to on-board motorized bed 110 (e.g., at mount 135) and/or are configured to shorten (i.e., retract) as necessary in order to facilitate movement of on-board motorized bed 110 into center opening 20 while keeping on-board motorized bed 110 level. See FIGS. 17 and 18. Powered rollers 145 are configured to rotate in a second, opposite direction in order to retract on-board motorized bed 110 from center opening 20 of mobile CT imaging machine 105, whereby to facilitate removal of the patient (or object) to be scanned from center opening 20. As on-board motorized bed 110 is retracted out of center opening 20 of mobile CT imaging machine 105, telescoping arms 125 are configured to pivot relative to on-board motorized bed 110 (e.g., at mount 135), and/or are configured to lengthen (i.e., extend) as necessary in order to facilitate movement of on-board motorized bed 110 out of center opening 20 while keeping on-board motorized bed 110 level.

[0054] Note that the two patient supports 115 of on-board motorized bed 110 comprise a material which is radiolucent to X-rays, so that when a patient (or object) is lying on on-board motorized bed 110 and the on-board motorized bed 110 advances the patient into the center opening 20 of mobile CT imaging machine 105 during scanning, on-board motorized bed 110 does not interfere with CT imaging of the patient.

[0055] Thus it will be seen that mobile CT imaging machine 105 differs from the mobile CT imaging systems 5B, 5C and 5D previously discussed, in the sense that with mobile CT imaging machine 105, relative movement between the patient and the CT imaging machine is not effected by movement of the mobile CT imaging machine relative to the patient, but rather, it is effected by movement of on-board motorized bed 110 relative to mobile CT imaging machine 105 (i.e., movement of on-board motorized bed 110 into or out of center opening 20).

[0056] If desired, and looking next at FIG. 19, the mobile CT imaging system 100 may include a contrast injector 150 which is movably mounted to mobile CT imaging machine 105 and which travels with the mobile CT imaging system 100 as a unit. In a preferred form of the invention, contrast injector 150 is movably mounted to mobile CT imaging machine 105 via a boom arm 152 comprising a plurality of joints for permitting contrast injector 150 to be positioned as desired. When contrast injector 150 is not being utilized, contrast injector 150 may be stowed in a cabinet 154 formed in torus 10 of mobile CT imaging machine 105. If desired, cabinet 154 may be disposed behind display screen 41 (when provided) such that display screen 41 forms the door of cabinet 154.

[0057] It will be appreciated that when on-board motorized bed 110 is in its second “unfolded” configuration, on-board motorized bed 110 is cantilevered outwardly from mobile CT imaging machine 105. Where mobile CT imaging machine 105 is relatively light-weight, and where a heavy patient (or object) is positioned on on-board motorized bed 110, instability of mobile CT imaging system 100 might occur. In order to prevent this, and looking next at FIGS. 20-22, mobile CT imaging machine 105 may include deployable feet 155 to help stabilize mobile CT imaging system 100 when a patient (or object) is positioned on the cantilevered on-board motorized bed 110.

[0058] Deployable feet 155 are movable between a first “folded” configuration in which deployable feet 155 sit close to the body of mobile CT imaging machine 105 (FIG. 20), whereby to facilitate movement of mobile CT imaging system 100 within a healthcare environment, and a second “unfolded” configuration (FIGS. 21 and 22) in which deployable feet 155 extend away from mobile CT imaging machine 105, whereby to provide increased stability for mobile CT imaging system 100.

Novel Mobile CT Imaging System Comprising an On-Board Ultrasound Imager

[0059] Looking next at FIG. 23, in another form of the invention, novel mobile CT imaging system 100 may comprise a mobile CT imaging machine 105 with an on-board ultrasound imager 160. More particularly, on-board ultrasound imager 160 generally comprises an ultrasound wand 165 which can be stored on a rack 170 on mobile CT imaging machine 105, and an adjustable viewing screen 175 for displaying the images obtained by ultrasound wand 165. More particularly, ultrasound wand 165 comprises an emitter configured to emit sound waves having a frequency appropriate for imaging, and a probe configured to detect reflected sound waves, as will be apparent to one of skill in the art. Ultrasound wand 165 may be wireless, or ultrasound wand 165 may be connected to CT imaging machine 105 via one or more wires. The supporting electronics for on-board ultrasound imager 160 may be housed in the torus 10 and/or base 15 of mobile CT imaging machine 105.

Application to Other Types of Scanning Systems

[0060] It should be appreciated that the present invention is not limited to use in medical applications or, indeed, to use with CT machines. Thus, for example, the present invention may be used in connection with mobile CT machines used for non-medical applications, e.g., with mobile CT machines used to scan inanimate objects. Furthermore, the present invention may be used with non-CT-type mobile scanning systems. Thus, for example, the present invention may be used in conjunction with mobile SPECT machines, mobile MRI machines, mobile PET machines, mobile X-ray machines, etc., i.e., wherever the mobile scanning machine may require close tracking to a scan path.

Modifications

[0061] It will be appreciated that still further embodiments of the present invention will be apparent to those skilled in the art in view of the present disclosure. It is to be understood that the present invention is by no means limited to the particular constructions herein disclosed and/or shown in the drawings, but also comprises any modifications or equivalents within the scope of the invention.