CN113456102A

CN113456102A - Scanning lifting mechanism, CT scanning device and CT scanning system

Info

Publication number: CN113456102A
Application number: CN202110853652.XA
Authority: CN
Inventors: 张宁
Original assignee: Sinovision Technology Beijing Co ltd
Current assignee: Sinovision Technology Beijing Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-10-01

Abstract

The application discloses scanning elevating system, CT scanning device and CT scanning system. The scanning elevating system includes: the device comprises a cabin bracket, a scanning frame, a lifting mechanism and a driving mechanism; the lifting mechanism comprises a balancing weight, a steel wire rope, a fixed pulley and a vertical guide rail, the vertical guide rail is installed on the cabin support, the scanning frame is movably connected to the vertical guide rail, the upper end of the balancing weight is connected with the first end of the steel wire rope, the second end of the steel wire rope penetrates through the fixed pulley to be connected with the scanning frame, the fixed pulley is fixed on the cabin support, and the horizontal position of the fixed pulley is higher than that of the balancing weight, so that a balance couple is formed between the scanning frame and the balancing weight; the driving mechanism is connected with the scanning frame so as to drive the scanning frame to move on the vertical guide rail. The technical problem that a scanning frame of a CT scanning system in the related art moves slowly in the vertical direction is solved.

Description

Scanning lifting mechanism, CT scanning device and CT scanning system

Technical Field

The application relates to the technical field of medical instruments, in particular to a scanning lifting mechanism, a CT scanning device and a CT scanning system.

Background

A conventional CT (computed tomography) scanning system comprises a gantry (including a rotatable X-ray source and an X-ray detector inside), a patient support (including a horizontally movable table for supporting a patient to be scanned), an operation console (providing a user operation interface, receiving and storing scan data, reconstructing and displaying CT tomographic images), and some auxiliary systems for power distribution. In the scanning process, a patient to be scanned horizontally lies on a bed plate of a patient support, an X-ray source in the scanning frame and an X-ray detector at a relative position rotate continuously for 360 degrees, and the bed plate of the patient support supports the patient to move horizontally, so that the part of the patient to be scanned can be covered by a scanning plane.

In the related art, there is also a vertical CT scanning system, and in many clinical applications, a patient needs to adopt a standing posture, CT scanning is performed in a vertical direction, and in some fever outpatient service or physical examination facilities, the number of patients needing scanning every day is large, scanning preparation time needs to be reduced, and the average scanning speed is increased.

Aiming at the problem that the scanning frame of the CT scanning system in the related art moves slowly in the vertical direction, an effective solution is not provided at present.

Disclosure of Invention

The present disclosure is directed to a scanning lifting mechanism to solve the problem of slow movement of a scanning frame of a CT scanning system in a vertical direction in the related art.

To achieve the above object, in a first aspect, the present application provides a scanning elevating mechanism.

The scanning elevating system according to the application includes: the device comprises a cabin bracket, a scanning frame, a lifting mechanism and a driving mechanism;

the lifting mechanism comprises a balancing weight, a steel wire rope, a fixed pulley and a vertical guide rail, the vertical guide rail is installed on the cabin support, the scanning frame is movably connected to the vertical guide rail, the upper end of the balancing weight is connected with the first end of the steel wire rope, the second end of the steel wire rope penetrates through the fixed pulley to be connected with the scanning frame, the fixed pulley is fixed on the cabin support, and the horizontal position of the fixed pulley is higher than that of the balancing weight, so that a balance couple is formed between the scanning frame and the balancing weight;

the driving mechanism is connected with the scanning frame so as to drive the scanning frame to move on the vertical guide rail.

Optionally, the lifting mechanism further comprises a fixing plate, one end of the fixing plate is connected to the vertical guide rail, and the other end of the fixing plate is connected to the scanning frame.

Optionally, the second end of the wire rope is connected to the fixing plate.

Optionally, the driving mechanism includes a motor, a ball screw and a nut support seat, and an output end of the motor is connected to a first end of the ball screw, so that the motor drives the ball screw to rotate;

the second end of the ball screw is movably connected to the cabin support, the nut supporting seat is in threaded connection with the ball screw, and the nut supporting seat is fixed to the fixing plate.

Optionally, the driving mechanism further comprises a synchronous belt, the first end of the synchronous belt is connected with the output end of the motor, and the other end of the synchronous belt is connected with the ball screw.

Optionally, the lifting mechanism further comprises a sliding block, one end of the sliding block is clamped on the vertical guide rail, and the other end of the sliding block is fixed on the fixing plate.

Optionally, the number of the lifting mechanisms is two, and the two lifting mechanisms are symmetrically arranged on two sides of the scanning frame.

Optionally, the lifting mechanism further comprises a counterweight guide rail, the counterweight guide rail is vertically arranged, the counterweight guide rail is fixed on the cabin support, and the counterweight block is slidably connected to the counterweight guide rail.

In a second aspect, the present application further provides a CT scanning apparatus, including the scanning lifting mechanism.

In a third aspect, the present application further provides a CT scanning system including the CT scanning apparatus.

In the embodiment of the present application, a scanning lifting mechanism is provided, which comprises: the device comprises a cabin bracket, a scanning frame, a lifting mechanism and a driving mechanism; the lifting mechanism comprises a balancing weight, a steel wire rope, a fixed pulley and a vertical guide rail, the vertical guide rail is installed on the cabin support, the scanning frame is movably connected to the vertical guide rail, the upper end of the balancing weight is connected with the first end of the steel wire rope, the second end of the steel wire rope penetrates through the fixed pulley to be connected with the scanning frame, the fixed pulley is fixed on the cabin support, and the horizontal position of the fixed pulley is higher than that of the balancing weight, so that a balance couple is formed between the scanning frame and the balancing weight; the driving mechanism is connected with the scanning frame so as to drive the scanning frame to move on the vertical guide rail. Like this, through setting up and forming the balanced couple between balancing weight, wire rope, fixed pulley and the scan frame, can reduce the load that actuating mechanism drive scan frame moved on vertical guide rail, realize improving the purpose of the scan frame of CT scanning system removal efficiency and the degree of accuracy on vertical direction. Therefore, the technical problem that the scanning frame of the CT scanning system in the related art moves slowly in the vertical direction is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

fig. 1 is a schematic structural diagram of a patient standing table provided in an embodiment of the present application;

FIG. 2 is a front view of a patient stand provided by an embodiment of the present application;

FIG. 3 is a partial schematic view of a patient stand provided in accordance with an embodiment of the present application;

FIG. 4 is a partial schematic view from another perspective of the patient stand of FIG. 3;

fig. 5 is a front view of a CT scanner according to an embodiment of the present application;

FIG. 6 is a top view of a CT scanning device according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a vertical cabin provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of a CT scanning apparatus according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a scanning lifting mechanism according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a scanning elevating mechanism according to an embodiment of the present application;

FIG. 11 is a schematic structural diagram of another view angle of a scanning elevating mechanism according to an embodiment of the present disclosure;

wherein, 11, the base bracket; 12. a track; 13. a mobile platform; 14. a patient securing plate; 15. a slider; 16. a motor; 17. a lead screw; 18. binding bands; 21. a cabin bracket; 22. a shielding plate; 23. a shield door; 24. a base; 31. a scanning frame; 32. a balancing weight; 33. a wire rope; 34. a fixed pulley; 35. a vertical guide rail; 36. a fixing plate; 37. a slider; 381. a motor; 382. a ball screw; 383. a nut supporting seat; 384. and (4) a synchronous belt.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted", "disposed", "provided", "connected", "slidably connected", "fixed", should be understood in a broad sense. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 11, an embodiment of the present application provides a scanning lifting mechanism, which includes a cabin bracket 21, a scanning frame 31, a lifting mechanism, and a driving mechanism;

the lifting mechanism comprises a counterweight 32, a steel wire rope 33, a fixed pulley 34 and a vertical guide rail 35, the vertical guide rail 35 is mounted on the cabin support 21, the scanning frame 31 is movably connected on the vertical guide rail 35, the upper end of the counterweight 32 is connected with the first end of the steel wire rope 33, the second end of the steel wire rope 33 passes through the fixed pulley 34 to be connected with the scanning frame 31, the fixed pulley 34 is fixed on the cabin support 21, and the horizontal position of the fixed pulley 34 is higher than that of the counterweight 32, so that a balance couple is formed between the scanning frame 31 and the counterweight 32;

the driving mechanism is connected with the scanning frame 31, so that the driving mechanism drives the scanning frame 31 to move on the vertical guide rail 35.

Specifically, the cabin bracket 21 can support the scanning frame 31, the lifting mechanism and the driving mechanism, and a balance couple is formed between the counterweight 32, the steel wire rope 33, the fixed pulley and the scanning frame 31, so that the load of the driving mechanism for driving the scanning frame 31 to move on the vertical guide rail 35 can be reduced, and the purposes of improving the moving efficiency and accuracy of the scanning frame 31 of the CT scanning system in the vertical direction are achieved. Thereby solving the technical problem that the scanning frame 31 of the CT scanning system in the related art moves slowly in the vertical direction.

Optionally, the lifting mechanism further includes a fixing plate 36, one end of the fixing plate 36 is connected to the vertical guide rail 35, and the other end of the fixing plate 36 is connected to the scanning frame 31.

Specifically, the scanning frame 31 included in the CT scanning device is connected to the vertical guide rail 35 through the fixing plate 36, so that the outer wall structure of the scanning frame 31 is prevented from being greatly modified.

Optionally, the second end of the cable 33 is connected to the fixing plate 36.

Specifically, the cable 33 may not be directly connected to the gantry 31, but may be indirectly connected to the gantry 31 by connecting the fixing plate 36.

Optionally, the driving mechanism includes a motor 381, a ball screw 382 and a nut support 383, and an output end of the motor 381 is connected to a first end of the ball screw 382, so that the motor 381 drives the ball screw 382 to rotate;

the second end of the ball screw 382 is movably connected to the cabin bracket 21, the nut support seat 383 is in threaded connection with the ball screw 382, and the nut support seat 383 is fixed on the fixing plate 36.

Specifically, the motor 381 drives the ball screw 382 to rotate, so that the nut support seat 383 in threaded connection with the ball screw 382 moves, and the fixing plate 36 is driven to move on the vertical guide rail 35.

Optionally, the driving mechanism further includes a timing belt 384, and a first end of the timing belt 384 is connected to the output end of the motor 381, and the other end of the timing belt 384 is connected to the ball screw 382.

Specifically, the arrangement layout of the drive mechanism can be changed by the timing belt 384, and the torque supplied from the motor 381 to the ball screw 382 can be increased by the timing belt 384.

Optionally, the lifting mechanism further includes a sliding block 37, one end of the sliding block 37 is clamped on the vertical guide rail 35, and the other end of the sliding block 37 is fixed on the fixing plate 36.

Specifically, the fixing plate 36 may be connected to the vertical guide rail 35 by a separately provided slider 37, and the fixing plate 36 slides on the vertical guide rail 35 by the slider 37.

Optionally, for balancing, two lifting mechanisms are provided, and the two lifting mechanisms are symmetrically arranged on two sides of the scanning frame 31.

Optionally, the lifting mechanism further includes a counterweight guide rail, the counterweight guide rail is vertically disposed, the counterweight guide rail is fixed on the cabin bracket 21, and the counterweight 32 is slidably connected to the counterweight guide rail.

Specifically, through setting up the counter weight guide rail for balancing weight 32 removes in the counter weight guide rail, has improved balancing weight 32 stability and the security of operation.

Based on the same technical concept, the application also provides a CT scanning device, which comprises the scanning lifting mechanism.

The CT scanning device also comprises a vertical cabin, wherein the vertical cabin comprises a cabin bracket 21, a shielding plate 22, a shielding door 23, a base 24 and a vertical guide rail 35;

the cabin support 21 is fixed on the base 24, the shielding plate 22 covers the cabin support 21, so that the shielding plate 22 surrounds a cabin space with an opening on the cabin support 21, the shielding door 23 is installed on the opening of the cabin space, and the vertical guide rail 35 is installed on the cabin support 21, so that the scanning frame 31 included in the CT scanning device is installed on the vertical guide rail 35.

Specifically, the integral support is carried out on the vertical cabin by arranging the cabin support 21, the shielding plate 22 is covered on the cabin support 21, the shielding plate 22 is arranged on the cabin support 21 in a surrounding mode to form a cabin space with an opening, and the scanning frame 31 is arranged in the cabin space through the vertical guide rail 35, so that the scanning frame 31 can be independently positioned in a closed cabin space, the scanning frame 31 is prevented from being exposed in a deployment space, and the applicability of the arrangement scene and the arrangement space of the CT scanning system is improved. Therefore, the technical problem that the arrangement scene and the arrangement space of the vertical CT scanning system in the related technology are not high in applicability is solved.

In addition, in order to avoid the overlarge volume of the vertical cabin, the length and the width of the vertical cabin are not more than 1.2 times of the height.

Optionally, the upright cabinet further comprises a patient standing table fixed on the base 24 and aligned with the gantry 31.

Optionally, the patient standing table comprises a base support 11, a rail 12, a moving platform 13, a patient fixing plate 14 and a driving mechanism; the movable platform 13 is located under a scanning frame 31 included in the CT scanning device, the patient fixing plate 14 is vertically fixed on the movable platform 13, the lower end of the movable platform 13 is slidably connected to the rail 12, the rail 12 is fixed on the base support 11, and the driving mechanism is connected with the movable platform 13 so as to drive the movable platform 13 to horizontally move on the rail 12.

Specifically, by setting: a base support 11, a rail 12, a mobile platform 13, a patient fixing plate 14 and a driving mechanism; the movable platform 13 is located under a scanning frame 31 included in the CT scanning device, the patient fixing plate 14 is vertically fixed on the movable platform 13, the lower end of the movable platform 13 is slidably connected to the rail 12, the rail 12 is fixed on the base support 11, and the driving mechanism is connected with the movable platform 13 so as to drive the movable platform 13 to horizontally move on the rail 12. Therefore, the base support 11 supports the track 12, the moving platform 13, the patient fixing plate 14 and the driving mechanism, and the driving mechanism drives the moving platform 13 to horizontally move on the track 12, so that the purpose of accurately adjusting the standing position of the patient is achieved. Therefore, the technical problem that the CT scanning system in the related art cannot accurately adjust the standing position of the patient is solved.

Wherein the patient securing plate 14 protrudes into the gantry 31.

Optionally, the material of the shielding plate 22 and the material of the shielding door 23 both comprise lead plates.

Optionally, the track 12 includes two parallel linear guide rails, and two ends of the moving platform 13 are respectively connected to the two linear guide rails in a sliding manner. In this way, the moving platform 13 can be made to move on two parallel linear guides.

Optionally, this patient standing table still includes slider 15, linear guide is the I-shaped guide, the lower extreme joint of slider 15 is in on the linear guide, the upper end of slider 15 is fixed on moving platform 13, so that moving platform 13 passes through slider 15 slides on the linear guide.

Specifically, the lower end of the sliding block 15 is clamped on the linear guide rail, so that the mobile platform 13 can slide on the linear guide rail through the sliding block 15.

Optionally, the driving mechanism includes a motor 16 and a lead screw 17, the motor 16 is fixed on the base support 11, one end of the lead screw 17 is connected to an output end of the motor 16, the other end of the lead screw 17 is movably connected to the base support 11, the middle of the lead screw 17 is in threaded connection with the moving platform 13, and the lead screw 17 is located in the middle of the two linear guide rails.

Specifically, a motor 16 drives a lead screw 17 to rotate, so that the lead screw 17 drives a moving platform 13 in threaded connection with the lead screw to move; wherein the screw 17 is arranged parallel to the linear guide.

Optionally, the device further comprises an adapter fixed at the lower end of the moving platform 13, and the adapter is in threaded connection with the middle of the screw 17.

The adapter is sleeved on the screw 17 and in threaded connection with the screw 17, so that when the screw 17 rotates, the screw 17 drives the moving platform 13 to move through the adapter.

Optionally, the patient standing table further comprises a pressure detection piece, and the pressure detection piece is in communication connection with the control end of the CT scanning system, so that the pressure detection piece sends the collected weight information of the patient to the control end of the CT scanning system.

Specifically, the acquired weight of the patient can be transmitted to the control end of the CT scanning system by a pressure detection element (e.g., a weight scale or a pressure sensor, etc.) in a manner of sending information.

Specifically, the material of the patient fixing plate 14 includes a carbon fiber sheet.

Optionally, at least two straps 18 for securing the patient are provided on the patient securing plate 14.

In particular, the patient can be fixed on the patient fixing plate 14 by the strap 18, and the patient is prevented from falling down when the moving platform 13 moves.

Optionally, at least one of the straps 18 is spaced from the movable platform 13 by a distance of more than 0.85 meters in order to ensure the stability of the patient on the patient securing plate 14 and to prevent the patient from falling down when the movable platform 13 is moved.

Based on the same technical concept, the application also provides a CT scanning system which comprises the CT scanning device.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A scanning lift mechanism, comprising: the device comprises a cabin bracket, a scanning frame, a lifting mechanism and a driving mechanism;

2. The scanning lift mechanism of claim 1, further comprising a fixed plate, wherein one end of the fixed plate is connected to the vertical rail and the other end is connected to the gantry.

3. The scanning lift mechanism of claim 2, wherein the second end of the wire rope is connected to the fixed plate.

4. The scanning lifting mechanism of claim 2, wherein the driving mechanism comprises a motor, a ball screw and a nut support base, and an output end of the motor is connected with a first end of the ball screw, so that the motor drives the ball screw to rotate;

5. The elevating mechanism for scanning as claimed in claim 4, wherein the driving mechanism further comprises a synchronous belt, a first end of the synchronous belt is connected to the output end of the motor, and the other end of the synchronous belt is connected to the ball screw.

6. The lifting mechanism as claimed in claim 2, wherein the lifting mechanism further comprises a slider, one end of the slider is clamped on the vertical guide rail, and the other end of the slider is fixed on the fixing plate.

7. The scanning lifting mechanism according to claim 1, wherein the lifting mechanism is provided in two, and the two lifting mechanisms are symmetrically arranged on two sides of the scanning frame.

8. The scanning lift mechanism of claim 1, further comprising a counterweight guide rail, wherein the counterweight guide rail is vertically disposed and is fixed to the cabin bracket, and wherein the counterweight block is slidably coupled to the counterweight guide rail.

9. A CT scanner comprising the scanning elevator mechanism of any of claims 1-8.

10. A CT scanning system comprising a CT scanning device according to claim 9.