CN212489932U

CN212489932U - CT examination device

Info

Publication number: CN212489932U
Application number: CN202020569989.9U
Authority: CN
Inventors: 戴欣
Original assignee: Chongqing Public Health Medical Center
Current assignee: Chongqing Public Health Medical Center
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-02-09
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a CT inspection device, including CT host computer and inspection bed, the inspection bed includes base, elevating system, lateral shifting mechanism and longitudinal movement mechanism. The height of the bearing plate can be adjusted by the lifting mechanism, the left and right positions of a patient can be adjusted by the transverse moving mechanism, the bearing plate can enter the CT host by the longitudinal moving mechanism to carry out CT examination, and meanwhile, the front and back positions of the patient can be adjusted by the longitudinal moving mechanism. The examining table can be lifted, adjusted front and back, adjusted left and right, and the patient can be positioned at the midpoint of the scanning visual field, so that the increase of the scanning dose and the scanning visual field is avoided, the radiation can be reduced, and the service life of the CT scanning device can be prolonged.

Description

CT examination device

Technical Field

The utility model relates to a CT inspection technical field, concretely relates to CT inspection device.

Background

Computed Tomography (CT) uses a precisely collimated X-ray beam, gamma rays or ultrasonic waves, and a highly sensitive detector to perform cross-section scanning one by one around a certain part of a human body, has the characteristics of fast scanning time, clear images, and the like, and can be used for the examination of various diseases.

In medical diagnosis, a CT scanning device is a common technical means, and the CT scanning device is used to scan a focus of a patient, so as to help a doctor diagnose a disease condition of the patient. At present, the patient is carrying out the in-process of CT inspection, and a lot of patients can make the scanning dose increase like this because the position of lying is inaccurate, need increase the scanning field of vision simultaneously, can reduce the life of bulb when increaseing radiation dose like this, are unfavorable for the health to and influence CT scanning equipment's life-span.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a CT examination apparatus for solving the problem that the radiation dose is increased and the service life of the bulb tube is reduced when the patient is not accurately positioned in the conventional CT scanning apparatus.

A CT examination device comprises a CT host computer and an examination bed, wherein the examination bed comprises:

the base is provided with a cavity, and the side wall of the cavity is provided with a slot;

the lifting mechanism comprises a lifting hydraulic cylinder and a lifting platform, the lifting hydraulic cylinder is arranged in the cavity, a piston rod of the lifting hydraulic cylinder is connected with the lifting platform, the lifting platform is provided with an inserting plate, the inserting plate is slidably inserted into the inserting slot, and an elastic piece is arranged between the end surface of the inserting plate and the bottom wall of the inserting slot;

the transverse moving mechanism comprises a transverse moving plate and a first linear driving assembly, the transverse moving plate is slidably arranged on the lifting platform, the first linear driving assembly is arranged on the lifting platform, and the first linear driving assembly is connected with the transverse moving plate to drive the transverse moving plate to slide; and

the longitudinal moving mechanism comprises a shell, a bearing plate and a second linear driving assembly, wherein the shell is arranged on the transverse moving plate, the bearing plate is arranged on the shell in a sliding mode, the second linear driving assembly is arranged on the shell, the second linear driving assembly is connected with the bearing plate to drive the bearing plate to slide, and the sliding direction of the bearing plate is perpendicular to that of the transverse moving plate.

In one embodiment, the end surface of the insertion plate is provided with a guide post, the elastic member is a spring, the elastic member is sleeved on the guide post, and two ends of the elastic member are respectively abutted against the end surface of the insertion plate and the bottom wall of the slot.

In one embodiment, a positioning column is disposed at the bottom of the insertion slot, the positioning column and the guiding column are disposed opposite to each other, and one end of the elastic member is sleeved on the positioning column.

In one embodiment, the lifting mechanism further comprises a telescopic protective net, and the telescopic protective net is connected between the base and the lifting platform.

In one embodiment, the traverse plate is slidably disposed on the lift platform by a first guide rail slider assembly.

In one embodiment, the carrier plate is slidably disposed on the housing via a second guide rail slider assembly.

In one embodiment, the first linear driving assembly includes a first motor, a first lead screw and a first connecting block, the first motor is disposed on the lifting platform, the first lead screw is rotatably disposed on the lifting platform and is connected to an output shaft of the first motor, the first connecting block is screwed on the first lead screw, and the first connecting block is connected to the traverse plate.

In one embodiment, the second linear driving assembly includes a second motor, a second screw rod, and a second connecting block, the second motor is disposed in the housing, the second screw rod is rotatably disposed on the housing, the second screw rod is connected to an output shaft of the second motor, the second connecting block is screwed on the second screw rod, and the second connecting block is connected to the bearing plate.

In one embodiment, the radiation-proof device further comprises a radiation-proof cover, and the radiation-proof cover is hinged on the bearing plate.

In one embodiment, the carrier plate is hinged to a slide carriage, and the slide carriage is slidably disposed on the carrier plate.

Above-mentioned CT inspection device, the patient lies on the loading board, can adjust the height of loading board through elevating system, can adjust patient's left and right sides position through lateral shifting mechanism, can make the loading board enter into the CT host computer through longitudinal movement mechanism in, carries out the CT inspection, and longitudinal movement mechanism can adjust patient's front and back position simultaneously. The examining table can be lifted, adjusted front and back, adjusted left and right, and the patient can be positioned at the midpoint of the scanning visual field, so that the increase of the scanning dose and the scanning visual field is avoided, the radiation can be reduced, and the service life of the CT scanning device can be prolonged.

Drawings

FIG. 1 is a schematic diagram of a CT examination apparatus according to an embodiment;

FIG. 2 is a side view of the examination couch of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural view of the lateral moving mechanism of fig. 2 disposed on the lifting platform.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be embodied in many other forms than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 and 2, a CT examination apparatus according to an embodiment includes a CT host 10 and an examination couch 20, wherein the examination couch 20 is capable of delivering a patient into the CT host 10 for a CT examination. Specifically, the examination table 20 includes a base 22, a lifting mechanism 24, a lateral movement mechanism 26, and a longitudinal movement mechanism 28.

Referring to fig. 3, the base 22 has a cavity 221, and the sidewall of the cavity 221 has a slot 222. In one embodiment, the slot 222 extends along the circumferential direction of the sidewall of the cavity 221 to form an annular groove. The lifting mechanism 24 includes a lifting hydraulic cylinder 241 and a lifting platform 242, the lifting hydraulic cylinder 241 is installed in the cavity 221, and a piston rod of the lifting hydraulic cylinder 241 is connected to the lifting platform 242, so as to drive the lifting platform 242 to lift. An inserting plate 243 is disposed on the bottom surface of the lifting platform 242, and the inserting plate 243 is slidably inserted into the inserting slot 222, so as to ensure the stability of the lifting platform 242.

An elastic part 244 is arranged between the end surface of the inserting plate 243 and the bottom wall of the inserting groove 222, and the elastic part 244 can play a role in buffering when the lifting platform 242 descends, so that overlarge impact on the lifting hydraulic cylinder 241 is avoided. The number of the elastic members 244 is plural, and the plural elastic members 244 are arranged at intervals along the circumferential direction of the insertion groove 222. In one embodiment, the elastic member 244 is a spring, the end surface of the insertion plate 243 is provided with a guide post 245, the elastic member 244 is sleeved on the guide post 245, and two ends of the elastic member 244 respectively abut against the end surface of the insertion plate 243 and the bottom wall of the slot 222. The guiding post 245 can play a guiding role in the process of spring contraction, and damage caused by bending of the spring in the contraction process is avoided.

Furthermore, the bottom of the insertion slot 222 is provided with a positioning column 246, the positioning column 246 is opposite to the guiding column 245, the positioning column 246 and the guiding column 245 are spaced at a certain distance, one end of the elastic member 244 is sleeved on the positioning column 246, and the positioning column 246 is matched with the guiding column 245 to ensure the stability of the installation and contraction movement of the elastic member 244. In one embodiment, the lifting mechanism 24 further includes a telescopic protection net 247, the telescopic protection net 247 is connected between the base 22 and the lifting platform 242, and the telescopic protection net 247 can cover the inserting plate 243 to prevent external impurities from affecting the movement of the inserting plate 243 in the chute.

Referring to fig. 2 and 4, the traverse mechanism 26 includes a traverse plate 261 and a first linear driving assembly 262, and the traverse plate 261 is slidably disposed on the lifting platform 242. Specifically, the traverse plate 261 is slidably provided on the lifting platform 242 through a first guide rail slider assembly 263. The first guide rail slider assembly 263 includes a first guide rail 2631 and a first slider 2632, the first guide rail 2631 is disposed on the lifting platform 242, the first slider 2632 is slidably disposed on the first guide rail 2631, and the traverse plate 261 is mounted on the first slider 2632, so that the traverse plate 261 is slidably disposed on the lifting platform 242.

The first linear driving assembly 262 is disposed on the lifting platform 242, the first linear driving assembly 262 is connected to the traverse plate 261, and the first linear driving assembly 262 drives the traverse plate 261 to slide. In one embodiment, the first linear driving assembly 262 includes a first motor 2621, a first lead screw 2622 and a first connection block 2623. The first motor 2621 is disposed on the lifting platform 242, and the first lead screw 2622 is rotatably disposed on the lifting platform 242. Specifically, two fixing blocks 264 are arranged on the lifting platform 242 at intervals, and two ends of the first lead screw 2622 are rotatably arranged on the fixing blocks 264. The first lead screw 2622 is connected to an output shaft of the first motor 2621, the first connection block 2623 is screwed onto the first lead screw 2622, and the first connection block 2623 is connected to a bottom surface of the traverse plate 261.

Referring to fig. 1 and fig. 2 again, the longitudinal moving mechanism 28 includes a housing 281, a carrier plate 282, and a second linear driving element 283. The housing 281 is provided on the traverse plate 261. One end of the housing 281 away from the CT mainframe 10 is suspended so that the examining table 20 is balanced when the carrier 282 is inserted into the CT mainframe 10. The carrier plate 282 is slidably disposed on the housing 281, and a sliding direction of the carrier plate 282 is perpendicular to a sliding direction of the traverse plate 261.

In one embodiment, the carrier plate 282 is slidably disposed on the housing 281 via a second guide rail slider assembly 284. The second rail slider assembly 284 includes a second rail 2841 and a second slider 2842. The second guide rail 2841 is disposed on the housing 281, the second slider 2842 is slidably disposed on the second guide rail 2841, and the supporting plate 282 is mounted on the second slider 2842, so that the supporting plate 282 is slidably disposed on the housing 281.

The second linear driving assembly 283 is connected to the carrier plate 282, and the second linear driving assembly 283 drives the carrier plate 282 to slide. In one embodiment, the second linear driving assembly 283 includes a second motor 2831, a second lead screw 2832 and a second connecting block 2833. The second motor 2831 is disposed on the case 281. Specifically, the housing 281 is provided with a receiving cavity 2811, the second motor 2831 is disposed in the receiving cavity 2811, and an output shaft of the second motor 2831 extends out of the receiving cavity 2811. The second screw 2832 is rotatably disposed on the housing 281, and the second screw 2832 is connected to an output shaft of the second motor 2831. Specifically, the housing 281 is provided with two mounting blocks (not shown) at an interval, and two ends of the second screw 2832 are rotatably mounted on the two mounting blocks, respectively. The second connecting block 2833 is screwed on the second screw rod 2832, and the second connecting block 2833 is connected with the bearing plate 282.

Referring to fig. 1, in one embodiment, the examination table 20 further includes a radiation-proof cover 29, the radiation-proof cover 29 is hinged on the supporting plate 282, and the radiation-proof cover 29 can cover the part of the patient that does not need CT detection, so as to avoid excessive radiation caused by excessive exposure of the patient. In one embodiment, to facilitate adjusting the position of the radiation-proof cover 29, the radiation-proof cover 29 is hinged to a sliding base 292, and the sliding base 292 is slidably disposed on the bearing plate 282. By sliding the slide seat 292, the position of the radiation protection cover 29 can be adjusted as required to shield different areas of the patient. Specifically, the edge of the carrier plate 282 is provided with a slide rail 294, and the slide seat 292 is slidably disposed on the slide rail 294.

The working principle of the CT examination device is as follows:

after the patient is rolled on the carrier plate 282, the radiation-proof cover 29 is covered, and the position of the radiation-proof cover 29 is adjusted to shield the patient from the area that does not need the CT examination. Then, the lifting hydraulic cylinder 241 drives the lifting platform 242 to lift and lower to adjust the height of the loading plate 282.

Then the second motor 2831 drives the second lead screw 2832 to rotate, the rotation of the second lead screw 2832 can drive the second connecting block 2833 to move, and then the bearing plate 282 is driven to move, so that the bearing plate 282 enables the patient to enter the CT host 10, and the front and back positions of the patient are adjusted at the same time, so that the patient is ensured to be positioned below the scanning visual field.

Then first motor 2621 drive first lead screw 2622 is rotatory, and the rotation of first lead screw 2622 can drive first link 2623 motion, and then drives sideslip board 261 lateral shifting, adjusts patient's left and right positions, makes the patient be located under the scanning field of vision.

Finally, after the patient CT examination is completed, the second motor 2831 rotates reversely, so that the carrier plate 282 sends the patient out of the CT main machine 10. The elevating hydraulic cylinder 241 then drives the elevating platform 242 down to the proper position, and the radiation protection cover 29 is opened, so that the patient can leave the carrying plate 282.

In the CT examination device, the lifting mechanism 24 can realize the lifting of the patient, the transverse moving mechanism 26 can adjust the left and right positions of the patient, and the longitudinal moving mechanism 28 can adjust the front and back positions of the patient, so that the patient can be ensured to be positioned at the midpoint of the scanning visual field, the increase of the scanning dose and the scanning visual field is avoided, the radiation can be reduced, and the service life of the CT scanning device can be prolonged.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A CT examination apparatus, comprising a CT host computer and an examination couch, the examination couch comprising:

2. The CT inspection apparatus according to claim 1, wherein a guide post is disposed on an end surface of the insertion plate, the elastic member is a spring, the elastic member is sleeved on the guide post, and two ends of the elastic member are respectively abutted against the end surface of the insertion plate and a bottom wall of the insertion slot.

3. The CT inspection apparatus as recited in claim 2, wherein a positioning post is disposed at a bottom of the slot, the positioning post and the guiding post are disposed opposite to each other, and one end of the elastic member is disposed on the positioning post.

4. The CT inspection device of claim 1, wherein the elevating mechanism further comprises a telescoping protective mesh connected between the base and the elevating platform.

5. The CT inspection apparatus of claim 1, wherein the traverse plate is slidably disposed on the lift platform by a first guide rail slider assembly.

6. The CT inspection apparatus of claim 1, wherein the carrier plate is slidably disposed on the housing by a second guide rail slider assembly.

7. The CT inspection apparatus as recited in claim 6, wherein the first linear drive assembly comprises a first motor, a first lead screw and a first connecting block, the first motor is disposed on the lifting platform, the first lead screw is rotatably disposed on the lifting platform, the first lead screw is connected to an output shaft of the first motor, the first connecting block is screwed on the first lead screw, and the first connecting block is connected to the traverse plate.

8. The CT inspection apparatus according to claim 1, wherein the second linear driving assembly comprises a second motor, a second lead screw and a second connecting block, the second motor is disposed in the housing, the second lead screw is rotatably disposed on the housing, the second lead screw is connected to an output shaft of the second motor, the second connecting block is screwed on the second lead screw, and the second connecting block is connected to the bearing plate.

9. The CT inspection device of claim 1, further comprising a radiation-resistant cover hingedly connected to the carrier plate.

10. The CT examination apparatus of claim 9, wherein the carrier plate is hinged to a slide carriage, the slide carriage being slidably disposed on the carrier plate.