CN111481226B

CN111481226B - Transverse feeding device and CT equipment

Info

Publication number: CN111481226B
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: 2023-05-02
Anticipated expiration: 2040-04-01
Also published as: CN111481226A

Abstract

The disclosure relates to the field of medical equipment, in particular to an infeed device and CT equipment. An infeed device adapted for use in a CT apparatus, the device comprising: the sliding end of the guide rail assembly is suitable for being fixedly connected with a scanning host of the CT equipment; the power output end 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 host to slide, the sliding direction of the scanning host on the guide rail assembly is horizontal and vertical to the length direction of the scanning bed of the CT equipment. The transverse scanning position adjustment of the tested person is realized through 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 instead of transversely moving the scanning bed, the body shaking brought to the tested person when the scanning bed transversely moves is avoided, and the user experience is improved.

Description

Transverse feeding device and CT equipment

Technical Field

The disclosure relates to the field of medical equipment, in particular to an infeed device and CT equipment.

Background

CT (Computed Tomography) equipment refers to equipment that uses precisely collimated radiation and extremely sensitive detectors to scan a cross-section around a human body. The CT equipment has the advantages of quick scanning time, clear imaging and the like, and is widely applied to medical clinic.

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 is positioned between the equipment, a testee lies on the scanning bed when CT scanning is carried out, and the imaging is carried out on the tested part through the relative movement of the scanning bed and the CT host.

The CT equipment in the related art has the functions of longitudinal feeding, accurate positioning and lifting height adjustment, so as to meet the radiography requirements of all parts of a testee. However, in practical operation, the body of the testee often has a problem of lateral swinging, which causes inaccurate imaging. Because the scanning bed does not have a lateral feed function, in this case, an operator of the control room is required to remind a subject between the devices of readjusting the body position through a speaker or the like, and communication is complicated. And when the testee is difficult to move due to physical reasons, or can not move as much as possible, the human power is added to assist the testee to transversely adjust the body position, so that secondary injury is easily caused to the testee, and meanwhile, the working efficiency of a 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 to a testee and low working efficiency, the disclosure provides an transverse feeding device and the CT equipment with the transverse feeding device.

In a first aspect, embodiments of the present disclosure provide an infeed apparatus adapted for use in a CT device, the apparatus comprising:

the sliding end of the guide rail assembly 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 and is suitable for driving the scanning host to slide back and forth through the guide rail assembly;

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

In some embodiments, the infeed device 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 groups of guide rail assemblies are respectively arranged at corner positions of the rectangular frame structure;

the sliding assembly comprises a sliding block which is in sliding connection with the guide rail and a supporting plate which is 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 assembly is fixedly connected with the output shaft of the motor at one transmission connecting end and is driven to move by the motor; the other transmission connecting end is suitable for being fixedly connected with the scanning host.

In some embodiments, the transmission assembly comprises a screw and a nut matched with the screw, one end of the screw is fixedly connected with the output shaft of the motor, and the nut is fixedly connected with at least one supporting plate.

In some embodiments, one end of the screw rod is fixedly connected with an output shaft of the motor through a coupler, and two axial ends of the screw rod are respectively and fixedly connected to the body through bearings in a rotating manner.

In some embodiments, the infeed device 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 disposed and fixed on the ground, and the infeed device further comprises:

and the height of the heightening piece is the same as that of the guide rail assembly in the vertical direction, and the heightening piece is suitable for being arranged below the scanning bed.

In some embodiments, the infeed device further comprises:

the coaming is circumferentially arranged on the peripheral side walls of the body.

In a second aspect, embodiments of the present disclosure provide a CT apparatus, including:

a scanning host and a scanning bed; and

an infeed device according to any one 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 assembly and a power assembly, wherein the sliding end of the guide rail assembly 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, so that the scanning host is driven to slide back and forth through the guide rail assembly. According to the device of the embodiment of the disclosure, the power assembly drives the scanning host to slide, the sliding direction is the horizontal direction and is perpendicular to the direction of the CT equipment scanning bed, so that the transverse scanning position adjustment of the tested person is realized through 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 of secondary injury to the tested person is effectively reduced. Meanwhile, by moving the transverse position of the scanning host instead of transversely moving the scanning bed, the body shaking of the tested person caused by transverse movement of the scanning bed is avoided, the user experience is effectively improved, the safety of the tested person is ensured, and meanwhile, the scanning imaging is more stable.

The embodiment of the disclosure provides an infeed device, and power pack includes motor and drive assembly, and drive assembly includes lead screw and with lead screw complex nut, the one end and the output shaft fixed connection of motor of lead screw, nut and at least one backup pad fixed connection. Realize power transmission through screw nut for scanning host computer has better self-locking ability when horizontal translation, screw nut transmission simple structure simultaneously, with low costs, small, improves the integrated level of device.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the prior art, the drawings that are required in the detailed description or the prior art will be briefly described, it will be apparent that the drawings in the following description are some embodiments of the present disclosure, and other drawings may be obtained according to the drawings without inventive effort for a person of ordinary skill in the art.

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

Fig. 2 is a schematic structural view of an infeed device in accordance with some embodiments of the present disclosure.

Fig. 3 is a schematic diagram of a front view of an infeed apparatus in accordance with some embodiments of the present disclosure.

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

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

FIG. 6 is a schematic cross-sectional view of the position A-A of FIG. 5

Reference numerals illustrate:

100-infeed device; 110-body; 111-connecting bolts; 112-anchor bolts; 120-a rail assembly; 121-a guide rail; 122-a slider; 123-supporting plates; 130-a power assembly; 131-a motor; 132-screw; 133-nut; 134-coupling; 135-bearing seats; 136-bearings; 140-heightening piece; 150-coaming; 160-fixing rod; 170-a sliding limiting device; 200-scanning a host; 300-scanning bed.

Description of the embodiments

The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure. In addition, technical features related to different embodiments of the present disclosure described below may be combined with each other as long as they do not make a conflict with each other.

The transverse feeding device provided by the embodiment of the disclosure can be suitable for CT equipment, so that the scanning host of the CT equipment is subjected to transverse feeding function.

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

In fig. 1, some embodiments of a CT apparatus having the infeed apparatus of the present disclosure are shown, in which basic operation principles of a scan bed 300 and a scan host 200 are the same as those of the related art, with the main difference that the infeed apparatus is added to the functional structure of the related art, thereby realizing the infeed function of the scan host 200, which will be described in detail below.

As shown in fig. 1, the scanning bed 300 includes a couch board and a drive structure below the couch board, which generally enables lifting and z-direction feeding of the scanning bed 300. The lifting is used for adjusting the height of the bed board, so that a tested person with inconvenient actions can conveniently move from the stretcher to the scanning bed. The z-direction feeding is the main movement mode for completing scanning, the z-direction is the length direction of the scanning bed 300, after the bed board of the tested person is laid down, an operator controls the scanning bed to move along the z-direction through the main control device, so that the part to be detected of the tested 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 realized based on the longitudinal (z-direction) feeding of the scan bed 300, but in actual operation, when the subject lies on the scan bed 300, a lateral (width direction of the scan bed) lying bias condition often occurs, and when the subject body swings laterally, a part of effective information is lost, so that accurate imaging is not performed, and the subsequent focus observation is affected. In some of the circumstances under which it is desirable to have a high degree of freedom,

for example, when a person to be tested who is inconvenient to move is transferred from the stretcher to the scanning bed 300, other personnel are required to assist in moving, and the body of the person to be tested after moving may be laterally swung, however, the person to be tested who is inconvenient to move does not have the ability to adjust the body position, after the operator finds the deviation, the personnel are required to adjust the body position of the person to be tested according to the instruction of the operator, which is very troublesome, and the risk of causing secondary injury to the person to be tested is increased.

For another example, even if the subject does not have the problem of mobility inconvenience, since the subject generally does not have the relevant expertise, when the lateral swing of the body occurs, the body position can be adjusted only according to the instruction of the operator in the operation room, and the operator is required to communicate with the subject frequently, so that the working efficiency is greatly reduced.

As can be seen from the above, in the related art, the CT apparatus has low working efficiency in some scenes because the CT apparatus does not have the function of lateral feeding.

In order to solve the technical problem, the inventor of the present application found that, as shown in the CT apparatus shown in fig. 1, when the lateral body of the subject is offset, the scanning of the lateral position of the subject can be achieved in two ways: firstly, scanning the transverse offset position of a tested person by transversely moving a scanning bed; secondly, the scanning of the transverse offset position of the tested person is realized by transversely moving the scanning host.

However, with respect to the two inventive concepts as above, the present inventors have further studied to find out through a large number of comparative experiments: for the scheme of transversely moving the scanning bed, the stability in the width direction is far less than that in the length direction because the human body has a larger length-width ratio after lying down. In other words, when the scanning bed is moved transversely, the human body above the bed board can shake left and right due to poor stability of the human body in the width direction, so that the experience of a tested person is greatly reduced. In addition, under the condition that the tested person swings and deflects, the tested person is often close to the edge of the bed board, and even the tested person falls off the bed body due to larger swinging, secondary injury is brought to the tested person.

Thus, it can be appreciated that at least one inventive concept of the present disclosure lies in: by designing a lateral feed device, lateral movement of the scanning host is achieved instead of lateral movement of the scanning bed. The function is as follows: through the transverse feed of scanning host computer to under the circumstances that the testee appears the horizontal pendulum of health and is partially, need not to remove the testee health and can realize the effective scanning to offset position, in addition compare in the lateral shifting of scanning bed, can not bring to the testee and rock, thereby improve the testee experience, also avoided the risk of testee secondary injury.

In some embodiments, the present disclosure provides an infeed device that may include: a rail assembly 120 and a power assembly 130. The guide rail assembly 120 serves as a track for the scanning host to move laterally, and the sliding end thereof is adapted to be fixedly connected to the scanning host. The power assembly 130 refers to a power device, such as a motor driving structure, that drives the scanning host to slide laterally on the guide rail 121 provided by the guide rail assembly 120. The power assembly 130 drives the scan carriage to slide in a transverse direction, i.e., the scan carriage slides in a horizontal direction and in a direction perpendicular to the length of the scan bed.

As can be seen from the foregoing, in the transverse feeding device provided in the embodiments of the present disclosure, the power assembly 130 drives the scanning host to slide transversely, so as to adjust the transverse scanning position of the tested person, without moving the body position of the tested person, thereby improving the scanning efficiency and effectively reducing the risk of secondary injury to the tested person. Meanwhile, by moving the transverse position of the scanning host instead of transversely moving the scanning bed, the body shaking of the tested person caused by transverse movement of the scanning bed is avoided, the user experience is effectively improved, the safety of the tested person is ensured, and meanwhile, the scanning imaging is more stable.

Fig. 1-6 illustrate one embodiment of the infeed device 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 may be used as an additional functional component of the CT apparatus, or may be integrally installed and co-tuned with the CT apparatus, or may be separately installed for an existing CT apparatus, without affecting the original layout and functions of the CT apparatus. The present disclosure is not limited in this regard.

The infeed device 100 includes a body 110, the body 110 being disposed below the scanning main unit as an integral support for the scanning main unit and the infeed section. As shown in fig. 2, the body 110 is integrally formed with a rectangular frame structure matching the shape of the bottom surface of the scanning host, and in an exemplary implementation, the body 110 may be formed by welding sections such as angle steel and rectangular cold-formed hollow section steel into an integral structure. Specifically, the front and rear cross beams of the rectangular frame can adopt section steel angles, and the front and rear cross beams are connected and welded by adopting rectangular cold-formed hollow section steel, so that the strength and rigidity of the body structure are ensured. After the welding of the whole frame of the body 110 is completed, machining is performed to machine the connection structure for other parts, thereby ensuring high machining and assembling precision.

When the body 110 is assembled, as shown in fig. 4, the lower surface of the body 110 is fixedly mounted on the ground by anchor bolts 112 at four corners. The fixed structure and the position of the body 110 and the ground can be designed based on the anchor fixed structure of the original scanning host, so that the assembly can be realized by adopting the original mounting structure, repeated punching is avoided, and the mounting operation of the transverse feeding device is facilitated.

In this embodiment, the guide rail assembly 120 includes four groups, which are respectively disposed at four corners of the rectangular frame of the body 110, and correspond to the main supporting position of the gravity of the scanning host, so as to ensure that the whole scanning host is effectively supported. In one example, the rail assembly is self-lubricating, thereby ensuring that the rail assembly is low-speed, non-creeping, low-friction, and maintenance-free.

As shown in fig. 4, the rail assembly 120 includes a rail 121 and a sliding assembly, the rail 121 adopts a linear rail, a sliding direction of which is parallel to a length direction of the body 110, and the rail 121 is fixedly mounted on the body 110 by bolts. The mounting positions of the four sets of linear guides 121 are machined after the body 110 is welded, and accurate mounting references and transverse parallel mounting accuracy are ensured, so that the scanning host smoothly and stably moves.

In the present embodiment, the sliding assembly includes a slider 122 and a support plate 123, and the lower end of the slider 122 is slidably coupled 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 supporting plate 123 by a screw, and the upper surface of the supporting plate 123 is fixedly connected with the scanning host by a connecting bolt 111. In other words, the four support plates 123 provide four support surfaces for the scanning host, and the support plates 123 can be provided with a larger area, so that the pressure intensity of the support structure is reduced, and the service life is prolonged.

In addition, the connection structure and position of the supporting plate 123 and the scanning host machine can be designed according to the structure of the original fixed connection of the scanning host machine and the ground, so that the assembly can be realized by adopting the original mounting structure, repeated clamping control on the scanning host machine is avoided, and the additional mounting operation of the transverse feeding device is facilitated. The four supporting plates 123 are distributed at the four feet of the scanning host, and are identical to the main stress condition of the original scanning host on the ground, so that the supporting stress working condition of the whole scanning host is kept unchanged, and the influence on the scanning host is reduced.

In one exemplary implementation, rail assembly 120 is a relatively high load linear rail assembly that ensures that the entire infeed 100 has sufficient strength and rigidity to prevent the scanner host location from sagging, and to prevent sloshing during sliding, and to avoid artifacts in the scanned image.

In the present embodiment, the power assembly 130 includes a motor 131 and a transmission assembly. As shown in fig. 3, the motor 131 is fixedly installed on the frame of the body 110. In an exemplary implementation, the motor 131 is a stepper 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 comprises a screw rod 132, and one end of the screw rod 132 is fixedly connected with an output shaft of the motor 131 in a transmission manner through a coupler 134. The two ends of the screw rod 132 are rotationally fixed on the body 110 through bearings 136, so that the two ends of the screw rod 132 are axially limited, and the screw rod 132 is prevented from axially moving in a stringing manner.

Further, considering that the screw 132 and the nut 133 have large torque during the matching movement, so that the screw 132 may slightly deform axially in the axial direction, in order to ensure the free clearance in the axial direction of the screw 132, in this embodiment, in the state shown in fig. 6, the left side of the screw 132 is axially fixed with two bearings 136 through a shoulder structure, while the right side of the screw 132 is only supported freely through one bearing 136, that is, the assembly clearance is reserved between the bearing 136 and the shoulder of the screw 132, so that the matching precision of the screw 132 and the nut 133 is ensured, and the assembly of components is also facilitated.

The nut 133 is engaged with the screw 132 to reciprocally slide on the screw 132, thereby converting rotational movement of the screw 132 into linear movement of the nut 133. The nut 133 is fixedly connected with one of the support plates 123, so that the nut 133 drives the support plate 123 to reciprocate on the guide rail 121 in the process of moving on the screw rod 132, and further the scanning host machine realizes transverse line movement.

In an exemplary embodiment, the screw nut is a large-diameter trapezoidal screw nut assembly, so that when the transmission assembly is not transmitted or is powered off, mechanical self-locking is realized between the screw 132 and the nut 133, the transverse rigidity is higher, the scanning host of the CT device is ensured not to shake transversely 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 implement the lateral movement on the rail assembly 120, so the power assembly 130 is not limited to the solution of the foregoing 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 the present embodiment, the power assembly 130 and the guide rail assembly 120 are integrated on the body 110, so that the integration level of the infeed device 100 can be improved, and the additional installation and use are facilitated.

In addition, in the present embodiment, as shown in fig. 3, the power assembly 130 drives the rail assembly 120 located at the lower left, so as to drive the scanning host to move laterally. Those skilled in the art will appreciate that the power assembly 130 may also move other positions or numbers of the rail assemblies 120, or that the power assembly 130 may be configured in a multi-motor drive configuration to simultaneously drive the plurality of rail assemblies 120. The present disclosure is not limited in this regard.

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

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 host is disposed above the rail assembly 120, so that the scanning host is raised by the height of the rail assembly 120. In order not to affect the normal use of the CT apparatus, the scanner bed should be raised as well.

Therefore, in the present embodiment, the infeed apparatus 100 further includes a raising member 140, where the height of the raising member 140 is the same as that of the guide rail assembly 120, and the raising member 140 is disposed below the scan bed, so that the scan bed is raised by the same height, and normal use of the CT apparatus is not affected.

Further, the surrounding board 150 is further arranged around the body 110 of the infeed device 100, and the surrounding board 150 encloses the side walls around the body 110, so that the internal structure is protected, and the aesthetic degree of the device after being additionally arranged is improved. For example, the outer wall surface of the shroud 150 may be painted in a color consistent with the color tone of the scanning main machine, so that the CT apparatus as a whole looks beautiful and integral. Meanwhile, the coaming 150 cannot interfere with the normal operation of the rail assembly 120, so that a corresponding avoidance space can be provided within the range of travel of the rail assembly 120.

In the present embodiment, it is considered that the cable of the motor 131 is connected to the scanning main unit, so that the cable swings when the scanning main unit moves laterally. In order to prevent the motor cable from moving in an out-of-order manner, as shown in fig. 2 to 6, a fixing rod 160 is fixedly disposed on one of the supporting plates 123 in the present embodiment. Therefore, the cable of the motor 131 can be fixed on the fixed rod 160, and when the scanning host moves transversely, the cable on the fixed rod 160 swings left and right along with the cable, so that the cable is not damaged due to the out-of-order serial 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 device is assembled. After the body 110 is integrally welded by the profile, a connection structure of each component is machined. When the guide rail assembly 120 is assembled, the guide rail 121 is fixedly mounted on the body 110 through bolts, then the slider 122 is fixedly connected with the support plate 123 through bolts, and the connected sliding assembly is slidingly assembled on the guide rail 121. The motor 131 is fixedly arranged on the body 110 through bolts, an output shaft of the motor 131 is connected with shaft ends of the lead screw 132 through a coupler 134, and bearing blocks 135 are arranged on the body 110 at two ends of the lead screw 132, so that the lead screw 132 is axially limited and assembled on the bearing blocks 135 at two sides through the bearings 136. The nut 133 is fitted on the screw 132 between the two bearing blocks 135, and the nut 133 is fixedly coupled to one of the support plates 123 by bolts. To this end, the assembly of the infeed device is completed.

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

Finally, when the infeed device 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, and the nut 133 converts the rotation of the lead screw 132 into transverse movement, so that the support plate 123 at the lower left corner of the image 1 is driven to move, and the other three support plates 123 are driven to transversely move along with the scanning host. Scanning imaging of the offset part of the tested person is realized.

According to the transverse feeding device provided by the embodiment of the disclosure, the scanning host can transversely feed and move relative to the scanning bed, so that the transverse scanning position of the tested person is adjusted and positioned, the body position of the tested person does not need to be moved, the scanning efficiency is improved, and the risk of secondary injury to the tested person is effectively reduced. Meanwhile, by moving the transverse position of the scanning host instead of transversely moving the scanning bed, the body shaking of the tested person caused by transverse movement of the scanning bed is avoided, the user experience is effectively improved, the safety of the tested person is ensured, and meanwhile, the scanning imaging is more stable.

The foregoing has described the structure and principles of the infeed apparatus in some embodiments of the present disclosure. However, it should be understood by those skilled in the art that the present disclosure is not limited to the above-described embodiments, and that any other alternative structure and embodiments are possible without departing from the inventive concept of the present disclosure. For example, the number of the cells to be processed,

in some alternative embodiments, the difference between 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 host, and the power assembly 130 is disposed outside the scanning host, which can also drive the scanning host to move laterally, which is not limited in this disclosure. However, integrating the rail assembly 120 and the power assembly 130 on the same body can increase the integration level of the infeed device for ease of use. The location and configuration of the rail assembly 120 may be correspondingly configured in any other configuration suitable for implementation.

In other alternative embodiments, for assembly of the infeed with the CT apparatus, the infeed may be buried in a pre-configured pit such that the upper face of the rail assembly 120 is flush with the ground. Thus, for CT equipment, the whole height is unchanged from the original height, and the scanning bed does not need to be lifted. But the pit needs to be formed on the ground in advance, and accordingly the laying cost is increased.

In still other alternative embodiments, other suitable transmission means for power assembly 130, such as a gear transmission, may be used in addition to the lead screw nut transmission mentioned above; for example, worm and gear transmission, and the like, and a plurality of transmission modes can be realized by combining related knowledge by a person skilled in the art. But adopts screw nut transmission, has better self-locking capability compared with gear transmission, and has smaller transmission volume and better stability compared with worm and gear transmission.

In another aspect, the present disclosure also provides a CT apparatus including a scanning host, a scanning couch, and an infeed device as described in any embodiment. For the specific structure of the CT apparatus, reference may be made to the embodiments shown in fig. 1 to 6, and this disclosure will not be repeated.

It should be apparent that the above embodiments are merely examples for clarity of illustration and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the present disclosure.

Claims

1. An infeed apparatus adapted for use with a CT device, said 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 equipment; and

a body (110) adapted to be disposed below the scanning host (200); and

the power assembly (130) is connected with the scanning host (200) at the power output end and is suitable for driving the scanning host (200) to slide back and forth through the guide rail assembly (120);

wherein, when the power assembly (130) drives the scanning host (200) to slide, the sliding direction of the scanning host (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 equipment;

the power assembly (130) includes:

and the motor (131) is fixedly arranged on the body (110) and used for limiting the transverse movement stroke of the scanning host (200) so as to adjust the transverse scanning position of the scanning bed (300).

2. The infeed device of claim 1, wherein the rail assembly (120) comprises a rail (121) fixedly arranged on the body (110) and a sliding assembly slidably connected to the rail (121), the upper end of the sliding assembly being adapted to be fixedly connected to the scanning host (200).

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

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

4. The infeed device of claim 3, wherein the control system comprises a control system,

the body (110) is of a rectangular frame structure, and four groups of guide rail assemblies (120) are respectively arranged at corner positions of the rectangular frame structure;

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

5. The infeed device of claim 4, wherein the control system comprises a control system,

the transmission assembly comprises a screw rod (132) and a nut (133) matched with the screw rod (132), one end of the screw rod (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, wherein the control system comprises a control system,

one end of the screw rod (132) is fixedly connected with an output shaft of the motor (131) through a coupler (134), and two axial ends of the screw rod (132) are respectively and rotationally fixedly connected to the body (110) through bearings (136).

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

and the sliding limiting device (170) is arranged on the body (110) and is used for limiting the sliding two ends of the sliding assembly respectively.

8. The infeed device of claim 2, wherein the bottom surface of the body (110) is fixed to the ground, the infeed device further comprising:

and the heightening piece (140), wherein the heightening piece (140) and the guide rail assembly (120) are the same in height in the vertical direction, and the heightening piece is suitable for being arranged below the scanning bed (300).

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

and the coaming (150) is circumferentially arranged on the peripheral side wall of the body (110).

10. A CT apparatus, comprising:

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

an infeed device according to any one of claims 1 to 9.