CN111481226A

CN111481226A - Transverse feeding device and CT (computed tomography) equipment

Info

Publication number: CN111481226A
Application number: CN202010251332.2A
Authority: CN
Inventors: 于军; 杨永文
Original assignee: Neusoft Medical Systems Co Ltd
Current assignee: Neusoft Medical Systems Co Ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-08-04
Anticipated expiration: 2040-04-01
Also published as: CN111481226B

Abstract

The disclosure relates to the field of medical equipment, in particular to a transverse feeding device and CT equipment. An infeed apparatus adapted for use with a CT device, the apparatus comprising: the sliding end of the guide rail component is suitable for being fixedly connected with a scanning host of the CT equipment; the power output end of the power assembly is connected with the scanning host machine and is suitable for driving the scanning host machine to slide back and forth through the guide rail assembly; when the power assembly drives the scanning main machine to slide, the sliding direction of the scanning main machine on the guide rail assembly is the horizontal direction and is perpendicular to the length direction of a scanning bed of the CT device. The transverse scanning position of the tested person is adjusted by the transverse movement of the scanning host, and the body position of the tested person does not need to be moved. And by moving the transverse position of the scanning host machine instead of the transverse movement of the scanning bed, the body shaking of the tested person caused by the transverse movement of the scanning bed is avoided, and the user experience is improved.

Description

Transverse feeding device and CT (computed tomography) equipment

Technical Field

The disclosure relates to the field of medical equipment, in particular to a transverse feeding device and CT equipment.

Background

A CT (Computed Tomography) apparatus refers to an apparatus for performing a cross-sectional scan around a human body using a precisely collimated ray and a detector having an extremely high sensitivity. The CT apparatus has advantages of fast scanning time and clear imaging, and is more and more widely applied in medical clinics.

The CT equipment mainly comprises a main control device positioned in a control room, a CT host and a scanning bed, wherein the CT host and the scanning bed are positioned between the equipment, and a tested person lies above the scanning bed when carrying out CT scanning, and carries out contrast imaging on a tested part through the relative motion of the scanning bed and the CT host.

In the related art, the scanning bed of the CT apparatus has the functions of longitudinal feeding, precise positioning, and height adjustment for raising and lowering, so as to meet the requirement of radiography of each part of the subject. However, in actual practice, the body of the subject often has a problem of lateral deflection, which results in inaccurate imaging. Since the scanning bed does not have the transverse feeding function, in this case, the operator in the control room needs to remind the testee in the room to adjust the position again through a loudspeaker and the like, and the communication is complicated. And when the testee is difficult to move or cannot move due to physical reasons or the movement is reduced as much as possible, the manual assistance of the testee is needed to be added to transversely adjust the position, so that the secondary injury to the testee is easy to occur, and the working efficiency of the hospital is greatly reduced.

Disclosure of Invention

In order to solve the technical problems that the CT equipment in the related art has poor experience on a testee and low working efficiency, the disclosure provides a transverse feeding device and the CT equipment with the same.

In a first aspect, the disclosed embodiments provide an infeed apparatus suitable for a CT apparatus, the apparatus including:

the sliding end of the guide rail component is suitable for being fixedly connected with a scanning host of the CT equipment; and

the power output end of the power assembly is connected with the scanning host machine and is suitable for driving the scanning host machine to slide in a reciprocating manner through the guide rail assembly;

when the power assembly drives the scanning main machine to slide, the sliding direction of the scanning main machine on the guide rail assembly is the horizontal direction and is perpendicular to the length direction of a scanning bed of the CT equipment.

In some embodiments, the infeed apparatus further comprises:

the body is suitable for being arranged below the scanning host, the guide rail assembly comprises a guide rail fixedly arranged on the body and a sliding assembly in sliding connection with the guide rail, and the upper end of the sliding assembly is suitable for being fixedly connected with the scanning host.

In some embodiments, the body is a rectangular frame structure, and four sets of the guide rail assemblies are respectively arranged at corner positions of the rectangular frame structure;

the sliding assembly comprises a sliding block connected with the guide rail in a sliding mode and a supporting plate fixedly arranged above the sliding block, and the upper end face of the supporting plate is suitable for being fixedly connected with the scanning host.

In some embodiments, the power assembly comprises:

the motor is fixedly arranged on the body; and

the transmission connecting end is fixedly connected with the output shaft of the motor and is driven by the motor to move; the other transmission connecting end is suitable for being fixedly connected with the scanning host.

In some embodiments, the transmission assembly includes a screw rod and a nut engaged with the screw rod, one end of the screw rod is fixedly connected with the output shaft of the motor, and the nut is fixedly connected with at least one of the support plates.

In some embodiments, the one end of the lead screw is fixedly connected to the output shaft of the motor through a coupler, and the two axial ends of the lead screw are respectively and rotationally fixed to the body through bearings.

In some embodiments, the infeed apparatus further comprises:

and the sliding limiting device is arranged on the body and is used for limiting the sliding two ends of the sliding assembly respectively.

In some embodiments, the bottom surface of the body is fixed on the ground, and the transverse feeding device further comprises:

a padding member having the same height in a vertical direction as the rail assembly, adapted to be disposed under the scanning bed.

In some embodiments, the infeed apparatus further comprises:

and the coaming surrounds the side wall around the body.

In a second aspect, the present disclosure provides a CT apparatus, including:

a scanning host and a scanning bed; and

the infeed apparatus as described in any of the embodiments of the first aspect.

The transverse feeding device provided by the embodiment of the disclosure is suitable for CT equipment, and comprises a guide rail component and a power component, wherein the sliding end of the guide rail component is suitable for being fixedly connected with a scanning host of the CT equipment, and the power output end of the power component is connected with the scanning host, so that the scanning host is driven to slide back and forth through the guide rail component. The device of the embodiment of the disclosure drives the scanning host to slide by the power component, and the sliding direction is the horizontal direction and is perpendicular to the direction of the scanning bed of the CT device, so that the transverse scanning position of the tested person can be adjusted by the transverse movement of the scanning host, the body position of the tested person does not need to be moved, the scanning efficiency is improved, and the risk that the tested person is subjected to secondary injury is effectively reduced. Meanwhile, the transverse position of the scanning host is moved instead of the transverse movement of the scanning bed, so that the body shaking of the tested person during the transverse movement of the scanning bed is avoided, the user experience is effectively improved, the safety of the tested person is guaranteed, and meanwhile, the scanning imaging is more stable.

The transverse feeding device provided by the embodiment of the disclosure comprises a power assembly and a transmission assembly, wherein the transmission assembly comprises a lead screw and a nut matched with the lead screw, one end of the lead screw is fixedly connected with an output shaft of the motor, and the nut is fixedly connected with at least one supporting plate. The power transmission is realized through the screw nut, so that the scanning host has better self-locking capability when transversely translating, meanwhile, the screw nut has a simple transmission structure, is low in cost and small in size, and the integration level of the device is improved.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a CT apparatus according to some embodiments of the present disclosure.

FIG. 2 is a schematic diagram of an infeed apparatus according to some embodiments of the present disclosure.

Fig. 3 is a front view schematic of an infeed apparatus according to some embodiments of the present disclosure.

Fig. 4 is a schematic cross-sectional view at the position B-B in fig. 3.

FIG. 5 is a schematic structural diagram of a power assembly according to some embodiments of the present disclosure.

FIG. 6 is a schematic cross-sectional view taken at the position A-A in FIG. 5

Description of reference numerals:

100-infeed means; 110-a body; 111-connecting bolts; 112-anchor bolts; 120-a rail assembly; 121-a guide rail; 122-a slider; 123-a support plate; 130-a power assembly; 131-a motor; 132-a lead screw; 133-a nut; 134-a coupling; 135-bearing seat; 136-a bearing; 140-a padding member; 150-enclosing plates; 160-a fixed bar; 170-sliding limiting device; 200-scanning the host computer; 300-scanning the bed.

Detailed Description

The technical solutions of the present disclosure will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure. In addition, technical features involved in different embodiments of the present disclosure described below may be combined with each other as long as they do not conflict with each other.

The transverse feeding device provided by the embodiment of the disclosure can be applied to the CT equipment, so that the transverse feeding function is performed on the scanning host of the CT equipment.

The CT apparatus in the related art may generally include a main control device located in a control room, and a scan mainframe 200 and a scan bed 300 located between the apparatuses, and an operator may control the functions of the scan mainframe 200 and the scan bed 300 through the main control device, so as to realize scanning and imaging of a portion to be measured of a subject on the scan bed 300.

Some embodiments of the CT apparatus with the infeed of the present disclosure are shown in fig. 1, in which the basic operation principle and function of the scanning bed 300 and the scanning main machine 200 are the same as those of the related art, and the main difference is that the infeed is added to the functional structure of the related art, so as to realize the infeed function of the scanning main machine 200, which will be described in detail below.

As shown in fig. 1, the scanning bed 300 includes a table and a driving mechanism under the table, and the driving mechanism can generally realize the lifting and lowering of the scanning bed 300 and the z-direction feeding. The lifting is used for adjusting the height of the bed board, thereby facilitating the transfer of the testee with inconvenient movement from the stretcher vehicle to the scanning bed. The z-direction feeding is a main motion mode for completing scanning, the z-direction is the length direction of the scanning bed 300, after the bed board is laid, an operator controls the scanning bed to move along the z-direction through the main control device, so that a part to be detected of the detected person enters the position of the radio frequency pulse of the scanning host, then the scanning host 200 controls the bulb tube to radiate X-rays, and the detector realizes radiography imaging according to the received attenuation signal.

It can be seen that the main function of the CT apparatus is implemented based on the longitudinal (z direction) feeding of the scanning bed 300, but in actual operation, when the subject lies on the scanning bed 300, the situation of lateral (width direction of the scanning bed) lying is often generated, and when the body of the subject horizontally swings, part of the effective information is lost, and accurate imaging cannot be performed, which affects subsequent focus observation. In some of the situations in which the user is present,

for example, when a subject with mobility disability moves from a stretcher to the scanning bed 300, other persons are required to assist in moving, the body of the moved subject may swing laterally, however, the subject with mobility disability does not have the capability of adjusting the body position, and after the operator finds the deviation, the operator is required to adjust the body position of the subject according to the instruction of the operator, which is very troublesome, and the risk of causing secondary injury to the subject is increased.

For another example, even if the subject does not have the problem of inconvenient movement, since the subject generally does not have the related professional knowledge, when the body is swung and deflected, the body position can be adjusted only according to the indication of the operator in the operating room, and the operator and the subject need to communicate frequently, thereby greatly reducing the working efficiency.

Therefore, in the related art, the CT apparatus does not have the function of infeed, so that the CT apparatus has low working efficiency in some scenes.

In view of the above technical problem, the inventors of the present invention have found that, when a lateral body shift occurs in a subject, the CT apparatus shown in fig. 1 can scan the lateral position of the subject in the following two ways: firstly, scanning of the lateral offset position of a tested person is realized by moving a scanning bed laterally; and secondly, the scanning of the lateral offset position of the tested person is realized by moving the scanning host computer laterally.

However, with respect to the above two inventive concepts, the inventors of the present invention further research and find out through a large number of comparative experiments: for the solution of moving the scanning bed laterally, the human body has a larger length-width ratio after lying down, so the stability in the width direction is far inferior to that in the length direction. In other words, when the scanning bed is moved transversely, the stability of the human body in the width direction is poor, so that the human body above the bed plate shakes left and right, and the experience of a tested person is greatly reduced. And often can be more near the bed board edge under considering to be surveyed the condition of pendulum partially, great rocking can lead to being surveyed the person and falling the bed body even, brings the secondary damage for being surveyed.

It can thus be seen that at least one inventive concept of the present disclosure resides in: by designing the transverse feeding device, the transverse movement of the scanning main machine is realized, but not the transverse movement of the scanning bed. This has the effect of: through the transverse feeding of scanning host computer to under the circumstances that the lateral pendulum of measuring the person appears partially, need not to remove and to measure the person's health and can realize the effective scanning to the skew position, compare in the lateral shifting of scanning bed in addition, can not bring the rocking to measuring the person, thereby improve and to measure the person and experience, also avoided the risk of measuring the person's secondary injury.

In some embodiments, the infeed device provided by the present disclosure may include: a track assembly 120 and a power assembly 130. The rail assembly 120 serves as a rail for the transverse movement of the scanning host, and the sliding end of the rail assembly is adapted to be fixedly connected with the scanning host. The power assembly 130 refers to a power device, such as a motor driving structure, for driving the scanning host to slide laterally on the guide rail 121 provided by the guide rail assembly 120. When the power assembly 130 drives the scanning main machine to slide, the sliding direction of the scanning main machine is transverse reciprocating sliding, that is, the scanning main machine slides in a reciprocating manner in the horizontal direction along the length direction perpendicular to the scanning bed.

Through the above, the transverse feeding device provided in the embodiment of the present disclosure drives the scanning host to transversely slide by the power assembly 130, so as to adjust the transverse scanning position of the measured person, without moving the body position of the measured person, thereby improving the scanning efficiency and effectively reducing the risk of secondary injury to the measured person. Meanwhile, the transverse position of the scanning host is moved instead of the transverse movement of the scanning bed, so that the body shaking of the tested person during the transverse movement of the scanning bed is avoided, the user experience is effectively improved, the safety of the tested person is guaranteed, and meanwhile, the scanning imaging is more stable.

Fig. 1-6 illustrate one embodiment of an infeed of the present disclosure.

As shown in fig. 1 to 6, in the present embodiment, the infeed device 100 is disposed below the CT apparatus, and the infeed device can be used as an additional functional component of the CT apparatus, and can be used after being integrally installed and adjusted with the CT apparatus, or can be separately added to an existing CT apparatus, without affecting the original layout and functions of the CT apparatus. The present disclosure is not so limited.

The infeed device 100 includes a body 110, the body 110 being disposed below the scanning main body to serve as an integral support for the scanning main body and the infeed. As shown in fig. 2, the body 110 is a rectangular frame structure matching with the shape of the bottom surface of the scanning main body, and in an exemplary implementation, the body 110 may be a welded structure using angle steel and rectangular cold-formed hollow section steel. Particularly, the front and rear cross beams of the rectangular frame can be made of section steel angles, and the front and rear cross beams are connected and welded by rectangular cold-formed hollow section steel, so that the strength and rigidity of the body structure are ensured. And machining is carried out after the whole frame of the body 110 is welded, and a connecting structure is machined for other parts, so that higher machining and assembling precision is ensured.

When the body 110 is assembled, as shown in fig. 4, the lower surface of the body 110 is fixedly installed on the ground by means of anchor bolts 112 at four corners. The fixed knot on body 110 and ground constructs and the position, can design based on the lower margin fixed knot of original scanning host computer to adopt original mounting structure can realize the assembly, avoid repeated punching, the operation of installing additional of the transverse feeding device of being convenient for.

In this embodiment, the four sets of rail assemblies 120 are respectively disposed at four corners of the rectangular frame of the main body 110, and correspond to the main supporting positions of the gravity of the main scanning unit, so as to ensure that the main scanning unit is effectively supported. In one example, the guide rail assembly is self-lubricating, thereby ensuring that the guide rail assembly has no creep at low speed, low friction and no maintenance.

As shown in fig. 4, the guide rail assembly 120 includes a guide rail 121 and a sliding assembly, the guide rail 121 is a linear guide rail, the sliding direction of which is parallel to the length direction of the body 110, and the guide rail 121 is fixedly mounted on the body 110 by bolts. The four sets of linear guide rails 121 are machined after the welding of the body 110 is completed, so that accurate installation reference and transverse parallel installation accuracy are ensured, and the scanning main machine can move smoothly and stably.

In the present embodiment, the sliding assembly includes a slider 122 and a support plate 123, and a lower end of the slider 122 is slidably connected to the guide rail 121 so as to be reciprocally slidable on the guide rail 121. The upper end of the slider 122 is fixedly mounted with the support plate 123 through a screw, and the upper surface of the support plate 123 is fixedly connected with the scanning host through a connecting bolt 111. In other words, the four supporting plates 123 provide four supporting surfaces for the scanning host, and the supporting plates 123 can be arranged in a larger area, so that the pressure of the supporting structure is reduced, and the service life is prolonged.

In addition, the connecting structure and the position of the supporting plate 123 and the scanning host can be designed according to the original structure fixedly connected with the ground of the scanning host, so that the original mounting structure can be adopted to realize assembly, repeated clamping control on the scanning host is avoided, and the additional assembly operation of the transverse feeding device is facilitated. The four supporting plates 123 are distributed at four anchor feet of the scanning host machine, and are the same as the main stress condition of the original scanning host machine on the ground, so that the supporting stress working condition of the whole scanning host machine is kept unchanged, and the influence on the scanning host machine is reduced.

In an exemplary implementation, the guide rail assembly 120 is a linear guide rail assembly with a large load, so that the entire transverse feeding device 100 has sufficient strength and rigidity, the foundation of the scanning host is prevented from being soft, the sliding process generates shaking, and artifacts generated in the scanned image are avoided.

In this embodiment, the power assembly 130 includes a motor 131 and a transmission assembly. As shown in fig. 3, the motor 131 is fixedly mounted on the frame of the body 110. In an exemplary implementation, the motor 131 is a stepping motor with an encoder, and the rotation speed and the stroke of the motor 131 are controlled by encoding parameters of the motor 131, so that the transverse movement stroke of the scanning host can be limited.

As shown in fig. 5 and 6, in the present embodiment, the transmission assembly is a screw nut transmission. Specifically, the transmission assembly includes a lead screw 132, and one end of the lead screw 132 is fixedly connected with the output shaft of the motor 131 through a coupling 134. The two ends of the screw 132 are rotatably fixed on the body 110 through the bearings 136, so that the two ends of the screw 132 are axially limited, and the screw 132 is prevented from axially moving.

Further, considering that the torque of the screw 132 and the nut 133 is large during the matching movement, so that the screw 132 may slightly deform axially in the axial direction, in order to ensure the free gap in the axial direction of the screw 132, in the present embodiment, as shown in fig. 6, the left side of the screw 132 is axially fixed with the two bearings 136 through the shoulder structure, and the right side of the screw 132 is freely supported through only one bearing 136, that is, an assembly gap is reserved between the bearing 136 and the shoulder of the screw 132, which both ensures the matching accuracy of the screw 132 and the nut 133 and facilitates the installation of the components.

The nut 133 is engaged with the lead screw 132 to slide reciprocally on the lead screw 132, thereby converting the rotational motion of the lead screw 132 into the linear motion of the nut 133. The nut 133 is fixedly connected to one of the support plates 123, so that the nut 133 drives the support plate 123 to reciprocate on the guide rail 121 during the movement of the lead screw 132, thereby enabling the scanning host to realize the transverse movement.

In an exemplary embodiment, the lead screw nut adopts a large-diameter trapezoidal lead screw nut assembly, so that when the transmission assembly is not in transmission or is powered off, mechanical self-locking is realized between the lead screw 132 and the nut 133, the transverse rigidity is higher, the scanning host of the CT device is ensured not to generate transverse shaking during scanning, and scanning artifacts are avoided.

It should be noted that, in the present disclosure, the power assembly 130 is used to drive the scanning host to move transversely on the rail assembly 120, and therefore, the power assembly 130 is not limited to the above-mentioned embodiment. For example, the power assembly 130 may also be independently disposed outside the scanning host, so as to drive the scanning host to move laterally. In this embodiment, the power assembly 130 and the guide rail assembly 120 are integrated with the body 110, so that the integration of the transverse feeding device 100 can be improved, and the transverse feeding device can be conveniently installed and used.

In addition, in the present embodiment, as shown in fig. 3, the power assembly 130 drives the guide rail assembly 120 located at the lower left, so as to drive the scanning main body to move laterally. It should be understood by those skilled in the art that the power assembly 130 may also drive other positions or numbers of the track assemblies 120 to move, or the power assembly 130 may also be configured as a plurality of motor-driven structures to drive a plurality of the track assemblies 120 to move simultaneously. The present disclosure is not so limited.

With continued reference to fig. 3, in the embodiment of the present disclosure, the body 110 is further provided with a sliding limiting device 170, and the sliding limiting device 170 can detect the moving stroke of the lead screw 132 or the supporting plate 123, so as to limit the sliding end limit positions of the sliding assembly, and prevent the scanning host from exceeding the moving stroke range.

It should be noted that, as shown in fig. 1 to 4, in the present embodiment, the bottom surface of the main body 110 is fixed on the ground, and the scanning main machine is disposed above the guide rail assembly 120, so that the scanning main machine is raised by the height of the guide rail assembly 120. In order not to affect the normal use of the CT apparatus, the scanning bed should be raised as well.

Therefore, in the present embodiment, the transverse feeding device 100 further includes a padding member 140, the height of the padding member 140 is the same as that of the guide rail assembly 120, and the padding member 140 is disposed below the scanning bed, so as to pad the scanning bed at the same height, and thus, the normal use of the CT apparatus is not affected.

Furthermore, enclosing plates 150 are further arranged around the body 110 of the transverse feeding device 100, and the enclosing plates 150 enclose and block the peripheral side walls of the body 110, so that the internal structure is protected, and the attractiveness of the device after installation is improved. For example, the outer wall surface of the enclosing plate 150 may be painted with a color consistent with the color tone of the scanning main machine, so that the whole CT apparatus looks beautiful and integrated. Meanwhile, the coaming 150 cannot interfere with the normal operation of the guide rail assembly 120, so that a corresponding avoidance space can be provided within the stroke range of the guide rail assembly 120.

In the present embodiment, it is considered that the cable of the motor 131 is connected to the scanner main body, and the cable swings with the scanner main body when the scanner main body moves in the lateral direction. In order to prevent the motor cable from disorderly moving, as shown in fig. 2 to 6, in the present embodiment, a fixing rod 160 is fixedly provided on one of the supporting plates 123. Therefore, the cable of the motor 131 can be fixed on the fixing rod 160, and when the scanning host moves transversely, the cable on the fixing rod 160 swings left and right along with the fixing rod, and the cable is not damaged due to disorder movement of the cable.

The structure of the infeed device in the embodiments of the present disclosure is described above, and the assembly and principle of the infeed device are described below.

First, when the infeed is assembled. The body 110 is integrally welded by a profile, and then a connection structure of each component is machined. When the guide rail assembly 120 is assembled, the guide rail 121 is fixedly installed on the body 110 through a bolt, then the slider 122 is fixedly connected with the support plate 123 through a bolt, and the connected sliding assembly is slidably assembled on the guide rail 121. The motor 131 is fixedly installed on the body 110 through bolts, an output shaft of the motor 131 is connected with a shaft end of the screw 132 through a coupling 134, and bearing seats 135 are arranged on the body 110 at two end positions of the screw 132, so that the screw 132 is axially and limitedly assembled on the bearing seats 135 at two sides through bearings 136. A nut 133 is fitted on the lead screw 132 between the two bearing blocks 135, and the nut 133 is fixedly coupled with one of the support plates 123 by a bolt. To this end, the assembly of the infeed is completed.

Secondly, when the infeed is assembled with the CT apparatus. The transverse feeding device is fixedly installed on the ground by means of four anchor bolts 112 located at corners of the bottom surface of the body 110. The scanning main body is then fixedly mounted on the four support plates 123 by means of the four attachment bolts 111 located on the support plates 123. For the electrical connection part, the motor 131 is connected to the scanner main body through a cable, and the motor cable is restrained by the fixing lever 160. For the scanning bed portion, the elevation member 140 is fixedly installed below the scanning bed. Thus, the assembly of the infeed with the CT apparatus is completed.

Finally, when the infeed is in operation. The motor 131 is controlled to rotate through the main control device, the output shaft of the motor 131 drives the lead screw 132 to rotate, the nut 133 converts the rotation of the lead screw 132 into transverse movement, so that the supporting plate 123 at the lower left corner of fig. 1 is driven to move, and the other three supporting plates 123 are driven to transversely move along with the scanning host. Realize the scanning imaging of the deviation part of the tested person.

The transverse feeding device provided by the embodiment of the disclosure can enable the scanning host to move relative to the scanning bed in a transverse feeding manner, so that the transverse scanning position of the detected person can be adjusted and positioned, the body position of the detected person does not need to be moved, the scanning efficiency is improved, and the risk that the detected person is subjected to secondary injury is effectively reduced. Meanwhile, the transverse position of the scanning host is moved instead of the transverse movement of the scanning bed, so that the body shaking of the tested person during the transverse movement of the scanning bed is avoided, the user experience is effectively improved, the safety of the tested person is guaranteed, and meanwhile, the scanning imaging is more stable.

The foregoing has described the structure and principles of the infeed device in some embodiments of the present disclosure. However, it is to be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above and that many other alternative constructions and embodiments are possible without departing from the inventive concepts of the present disclosure. For example,

in some alternative embodiments, the difference from the above embodiments is that the rail assembly 120 and the power assembly 130 are separate structures, for example, the rail assembly 120 is disposed below the scanning main machine, and the power assembly 130 is disposed outside the scanning main machine, and can also drive the scanning main machine to move laterally, which is not limited by the present disclosure. However, the integration of the rail assembly 120 and the power assembly 130 into the same body can improve the integration of the infeed apparatus for ease of use. The location and configuration of the rail assembly 120 may be configured accordingly in any other configuration suitable for implementation.

In other alternative embodiments, for assembly of the infeed to the CT apparatus, the infeed may be buried in a pre-set pit so that the upper face of the rail assembly 120 is flush with the ground. Thus, for the CT device, the whole height is not changed from the original height, and the scanning bed does not need to be heightened. But requires a pit to be pre-established on the ground, with a corresponding increase in laying costs.

In still other alternative embodiments, the power assembly 130 may be any other transmission suitable for implementation, such as a gear transmission, besides the above-mentioned lead screw nut transmission; further for example, a worm gear, a worm drive, etc., and those skilled in the art can implement various drive forms in combination with the related knowledge. But adopt screw nut transmission, it has better self-locking ability to compare gear drive to it is littleer, stability is better to compare worm gear drive volume.

In another aspect, the present disclosure also provides a CT apparatus, which includes a scan host, a scan bed, and the infeed device described in any of the embodiments. For the specific structure of the CT apparatus, reference may be made to the embodiments shown in fig. 1 to 6, which are not described in detail in this disclosure.

It should be understood that the above embodiments are only examples for clearly illustrating the present invention, and are not intended to limit the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the present disclosure may be made without departing from the scope of the present disclosure.

Claims

1. An infeed apparatus adapted for use with a CT device, the apparatus comprising:

a guide rail assembly (120), the sliding end of which is suitable for being fixedly connected with a scanning host (200) of the CT device; and

the power assembly (130), the power take-off connects the scanning host (200), is suitable for driving the scanning host (200) to slide reciprocally through the guide rail assembly (120);

when the power assembly (130) drives the scanning main machine (200) to slide, the sliding direction of the scanning main machine (200) on the guide rail assembly (120) is a horizontal direction and is perpendicular to the length direction of a scanning bed (300) of the CT device.

2. The infeed apparatus of claim 1, further comprising:

the body (110) is suitable for being arranged below the scanning host (200), the guide rail assembly (120) comprises a guide rail (121) fixedly arranged on the body (100) and a sliding assembly in sliding connection with the guide rail (121), and the upper end of the sliding assembly is suitable for being fixedly connected with the scanning host (200).

3. The infeed device of claim 2, wherein said power assembly (130) comprises:

the motor (131) is fixedly arranged on the body (100); and

the transmission connecting end of the transmission component is fixedly connected with the output shaft of the motor (131) and is driven by the motor (131) to move; the other transmission connecting end is suitable for being fixedly connected with the scanning host (200).

4. The infeed device of claim 3,

the body (100) is of a rectangular frame structure, and the four groups of guide rail assemblies (120) are respectively arranged at the corner positions of the rectangular frame structure;

the sliding assembly comprises a sliding block (122) connected with the guide rail (121) in a sliding mode and a supporting plate (123) fixedly arranged above the sliding block (122), and the upper end face of the supporting plate (123) is suitable for being fixedly connected with the scanning host (200).

5. The infeed device of claim 4,

the transmission assembly comprises a lead screw (132) and a nut (133) matched with the lead screw (132), one end of the lead screw (132) is fixedly connected with an output shaft of the motor (131), and the nut (133) is fixedly connected with at least one supporting plate (123).

6. The infeed device of claim 5,

one end of the lead screw (132) is fixedly connected with an output shaft of the motor (131) through a coupler (134), and two axial ends of the lead screw (132) are fixedly connected to the body (100) through bearings (136) in a rotating mode.

7. The infeed device of claim 2, further comprising:

and the sliding limiting devices (170) are arranged on the body (100) and respectively limit the sliding two ends of the sliding assembly.

8. The infeed device of claim 2, wherein the bottom surface of said body (100) is fixed to the ground, said infeed device further comprising:

a padding member (140), the padding member (140) having the same height in the vertical direction as the rail assembly (120), adapted to be disposed under the scanning bed (300).

9. The infeed device of claim 8, further comprising:

and the surrounding plate (150) surrounds and surrounds the peripheral side wall of the body (100).

10. A CT apparatus, comprising:

a scanning host (200) and a scanning bed (300); and

the infeed apparatus of any of claims 1 to 9.