CT Scanner

Abstract

The present invention discloses a CT scanner, comprising an operating table, a lifting platform is fixedly installed at the bottom center position of the operating table, a placing base is fixedly installed at the bottom end of the lifting platform, a placing cavity is opened at the top of the operating table, a relatively arranged positioning support mechanism is fixedly installed at the inner bottom end of the placing cavity, the positioning support mechanism comprises a limit plate, and a relatively arranged limit plate is fixedly installed at the inner bottom end of the placing cavity. In the present invention, a lifting platform is fixedly installed at the bottom center position of the operating table, so that the height of the operating table can be adjusted by the lifting platform, a placing base is fixedly installed at the bottom of the lifting platform, so that the operating table can be placed more stably, a placing cavity is opened at the top of the operating table, so that the fixing plate can be fixed at the inner left end of the placing cavity, and a hard plastic plate is placed on the inner right side of the placing cavity, so that the hard plastic plate can move up and down in the placing cavity.

Description

Technical Field

[0001] The present invention belongs to the technical field of CT scanners, in particular to a CT scanner. Background Art

[0002] A CT scanner is a fully functional disease detection instrument. It is the abbreviation of computerized X-ray tomography technology. The working procedure of CT is usually based on the different absorption and transmittance of X-rays by different tissues of the human body. It uses highly sensitive instruments to measure the human body, and then inputs the measured data into an electronic computer. After the electronic computer processes the data, it can take cross-sectional or three-dimensional images of the examined part of the human body and detect small lesions in any part of the body.

[0003] In medical practice, computed tomography angiography is a commonly used method for non-invasive examination of human vascular diseases. With the development of CT equipment, the medical community has proposed the concept of precision CT imaging, that is, according to the individual differences of different patients, targeted contrast agent injection schemes (including concentration, dose, flow rate) and CT scanning schemes (including tube voltage, current, reconstruction algorithm, etc.) are selected when performing CT angiography. In the past, radiologists had insufficient understanding of the personalized optimization of CTA contrast dose. Even if they had some understanding, it was difficult to carry out effectively in actual work because it was complicated and inconvenient to calculate the amount of medicine required for each patient. It was not possible to quickly and automatically provide radiologists and technicians with targeted CTA contrast dose injection plans based on different patients and different examination sites.

[0004] Therefore, it is necessary to improve the structure of the existing CT scanner. At the same time, the present invention provides a CT scanner to better solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a CT scanner to solve the above-mentioned problems.

[0006] The technical solution adopted in the present invention is as follows:

[0007] The CT scanner includes an operating table, a lifting platform is fixedly installed at the center of the bottom of the operating table, a placement base is fixedly installed at the bottom end of the lifting platform, a placement cavity is defined at the top of the operating table, a positioning support mechanism is fixedly installed at the inner bottom end of the placement cavity, the positioning support mechanism includes a limit plate, a limit plate is fixedly installed at the inner bottom end of the placement cavity, and a linearly arranged limit groove is defined at the top of the limit plate.

[0008] In a preferred embodiment of the invention, a spring is fixedly installed at the inner bottom end of the limit groove, a limit sleeve is movably inserted inside the limit groove, the limit sleeve is sleeved on the spring, and the top end of the spring is fixedly installed at the inner top end of the limit sleeve, and a positioning support plate is fixedly installed on the top of the limit sleeve.

[0009] In a preferred embodiment of the invention, a positioning shaft is fixedly installed in the middle position of the opposite surface of the limit plate, a pressing plate is installed in the middle position of the positioning shaft through a bearing, a pressing column is threadedly connected to the top right side of the pressing plate, and an extrusion column is threadedly connected to the top left side of the pressing plate.

[0010] In a preferred embodiment of the invention, a counterweight is fixedly installed on the left end of the bottom of the positioning shaft, a fixed plate is fixedly installed on the left side of the inner wall of the placement cavity, a small-range spoke-type force sensor is fixedly installed at the middle position of the bottom end of the fixed plate, the bottom of the small-range spoke-type force sensor and the top of the limit plate are located on the same horizontal line, the small-range spoke-type force sensor is arranged opposite to the extrusion column, and a distance is left between the small-range spoke-type force sensor and the fixed plate, and the distance is 5-10 cm.

[0011] In a preferred embodiment of the invention, a hard plastic plate is placed inside the placement cavity, and the hard plastic plate is located on the right side of the fixed plate. The top of the hard plastic plate is fixedly mounted on the positioning support plate. The top of the hard plastic plate and the top of the fixed plate are located on the same horizontal plane. The thickness of the hard plastic plate is less than the thickness of the fixed plate. There is a distance between the hard plastic plate and the pressing column, and the distance is 3-5 cm.

[0012] In a preferred embodiment of the invention, a relatively arranged support foot plate is connected to the top left side of the hard plastic plate through a screw thread, and a relatively arranged positioning pin hole is opened on the top right side of the hard plastic plate. A limiting headrest is placed on the top right side of the hard plastic plate, and the limiting headrest is located on the inner side of the positioning pin hole. A placement groove is opened on the top of the limiting headrest, and the placement groove is a semicircular structure.

[0013] In a preferred embodiment of the invention, an air vent is provided at the center of the placement groove, a positioning plate is welded to a side of the positioning headrest opposite to the positioning pin hole, a pin hole is also provided at a position of the positioning plate opposite to the positioning pin hole, and the pin rod is inserted into the positioning pin hole through the pin hole on the positioning plate. The positioning headrest is made of sponge, and the positioning plate and the pin rod are both made of hard plastic.

[0014] In a preferred embodiment of the invention, a face placement groove and a neck placement groove are provided on the top of the position-limiting headrest, the face placement groove and the neck placement groove are connected structures, and the inner walls of the face placement groove and the neck placement groove are bonded with a rubber layer.

[0015] In a preferred embodiment of the invention, the neck placement groove is a semicircular structure, the length of the spring is greater than the depth of the limiting groove, the length of the limiting sleeve inserted into the limiting groove is 5-8 cm, and a sponge layer is bonded to the placement groove.

[0016] In summary, the above-mentioned technical solutions provide the following beneficial effects: The present invention can quickly and automatically provide radiologists and technicians with targeted CTA contrast injection prescriptions based on individual patients and examination sites. When the patient lies in a fixed position marked on the upper surface, the small-range spoke-type force sensor is compressed and outputs weight data. The calculation algorithm, based primarily on the examination site and patient weight data, generates an injection prescription that ensures reasonable target vessel CT values ​​and excellent CT angiographic images. Furthermore, the patient lies more stably on the hard plastic board, and can be easily turned over for examination, minimizing discomfort.

[0017] 1. In the present invention, a lifting platform is fixedly installed at the center position of the bottom of the operating table, so that the height of the operating table can be adjusted by the lifting platform. A placement base is fixedly installed at the bottom of the lifting platform, so that the operating table can be placed more stably. A placement cavity is provided on the top of the operating table, so that the fixing plate can be fixed to the inner left end of the placement cavity. A hard plastic plate is placed on the inner right side of the placement cavity, so that the hard plastic plate can move up and down in the placement cavity. A limiting groove located on the same horizontal line is provided on the top of the limiting plate, so that the limiting sleeve can move up and down in the limiting groove. A spring is fixedly installed at the inner bottom end of the limiting groove, so that under the action of the spring, the limiting sleeve drives the positioning support plate to perform up and down buffering movement.

[0018] 2. In the present invention, a hard plastic plate is fixedly installed on the top of the positioning support plate, which facilitates the hard plastic plate to move up and down more stably. At the same time, the hard plastic plate returns to its initial position without being affected by external force. A positioning shaft is fixedly installed in the middle position of the opposite surface of the limit plate, which facilitates the pressing plate to flip under the action of the bearing and the positioning shaft. A pressing column is welded on the right side of the top of the pressing plate, which facilitates the hard plastic plate to press the pressing column, so that the pressing plate drives the extrusion column to move upward.

[0019] 3. In the present invention, a counterweight is fixedly installed on the left side of the top of the pressing plate, so that the counterweight at the left end of the pressing plate fits in with the bottom of the placement cavity when the pressing plate is not subjected to external force. A small-range spoke-type force sensor is fixedly installed at the center of the bottom of the fixed plate, so that the extrusion column contacts the small-range spoke-type force sensor. At this time, the small-range spoke-type force sensor outputs weight data. A support foot plate is connected to the left side of the top of the hard plastic plate through a screw thread, so that the patient can place his feet on the support foot plate. A relatively set foot plate is opened on the right side of the top of the hard plastic plate. The positioning pin hole facilitates the cooperation of the limiting headrest with the positioning plate and the pin rod, so that the pin rod is inserted into the positioning pin hole, and the limiting headrest can be limited and fixed. A placement groove is provided on the top of the limiting headrest, which is convenient for placing the patient's head in the placement groove. A face placement groove and a neck placement groove are provided on the top of the limiting headrest, which are convenient for placing the patient's face in the face placement groove and the patient's neck in the neck placement groove, which is convenient for turning the patient over for inspection. An air outlet is provided in the center of the placement groove, which is convenient for the air outlet to be used in conjunction with the face placement groove, making the buffered breathing smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a first structural diagram of the present invention;

[0021] Figure 2 It is a second structural schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the positioning support mechanism structure of the present invention;

[0023] Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle A area;

[0024] Figure 5 This is a schematic diagram of the position-limiting headrest structure of the present invention.

[0025] Markings in the figure: 1-operating table, 2-lifting platform, 3-placing base, 4-placing cavity, 5-positioning support mechanism, 6-limiting plate, 7-limiting slot, 8-spring, 9-limiting sleeve, 10-positioning support plate, 11-positioning shaft, 12-pressing plate, 13-pressing column, 14-extrusion column, 15-counterweight, 16-fixing plate, 17-small-range spoke-type force sensor, 18-hard plastic plate, 19-support foot plate, 20-positioning pin hole, 21-limiting headrest, 22-placing slot, 23-air outlet, 24-positioning plate, 25-pin rod, 26-face placement slot, 27-neck placement slot. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] Reference Figure 1-3 The CT scanner includes an operating table 1, a lifting platform 2 is fixedly installed at the center of the bottom of the operating table 1, so that the height of the operating table 1 can be adjusted by the lifting platform 2, and a placement base 3 is fixedly installed at the bottom end of the lifting platform 2, so that the operating table 1 can be placed more stably. A placement cavity 4 is provided on the top of the operating table 1, so that a fixed plate 16 can be fixed at the inner left end of the placement cavity 4, and a relatively arranged positioning support mechanism 5 is fixedly installed at the inner bottom end of the placement cavity 4. The positioning support mechanism 5 includes a limit plate 6, and a relatively arranged limit plate 6 is fixedly installed at the inner bottom end of the placement cavity 4. The top of the limit plate 6 is provided with a linearly arranged limit groove 7, so that the limit sleeve 9 can move up and down in the limit groove 7.

[0028] Reference Figure 1-3 The bottom end of the limit groove 7 is fixedly installed with a spring 8, which is convenient for the limit sleeve 9 to drive the positioning support plate 10 to move up and down buffering under the action of the spring 8. The length of the spring 8 is greater than the depth of the limit groove 7. The internal movable plug-in of the limit groove 7 is the limit sleeve 9. The length of the limit sleeve 9 inserted in the limit groove 7 is 5-8 cm. The limit sleeve 9 is sleeved on the spring 8, and the top of the spring 8 is fixedly installed on the internal top of the limit sleeve 9. The top of the limit sleeve 9 is fixedly installed with a positioning support plate 10. The middle position of the opposite surface of the limit plate 6 is fixedly installed with a positioning shaft 11, which is convenient for the pressing plate 12 to flip under the action of the bearing and the positioning shaft 11. The middle position of the positioning shaft 11 is provided with a pressing plate 12 through a bearing. The top right side of the pressing plate 12 is threadedly connected with a pressing column 13, which is convenient for the hard plastic plate 18 to press the pressing column 13, so that the pressing plate 12 drives the extrusion column 14 to move upward. An extrusion column 14 is threadedly connected to the left side of the top of the pressure plate 12, and a counterweight 15 is fixedly installed on the left end of the bottom of the positioning shaft 11, so that the left end counterweight 15 of the pressing plate 12 is in contact with the bottom of the placement cavity 4 when the pressing plate 12 is not subjected to external force. A fixing plate 16 is fixedly installed on the left side of the inner wall of the placement cavity 4, and a small-range spoke-type force sensor 17 is fixedly installed at the middle position of the bottom end of the fixing plate 16, so that the extrusion column 14 is in contact with the small-range spoke-type force sensor 17. At this time, the small-range spoke-type force sensor 17 outputs weight data, and the bottom of the small-range spoke-type force sensor 17 is located on the same horizontal line as the top of the limit plate 6. The small-range spoke-type force sensor 17 is arranged opposite to the extrusion column 14, and there is a distance between the small-range spoke-type force sensor 17 and the fixing plate 16, and the distance is 5-10 cm; the spring 8 is a plastic spring made of PC / PB plastic.

[0029] Reference Figure 1-5 , a hard plastic plate 18 is placed inside the placement cavity 4, and the hard plastic plate 18 is located on the right side of the fixed plate 16, so that the hard plastic plate 18 can move up and down in the placement cavity 4, so that the hard plastic plate 18 can move up and down more stably. At the same time, the hard plastic plate 18 returns to its initial position without being affected by external force. The top of the hard plastic plate 18 is fixedly mounted on the positioning support plate 10. The top of the hard plastic plate 18 and the top of the fixed plate 16 are located on the same horizontal plane. The thickness of the hard plastic plate 18 is less than the thickness of the fixed plate 16. There is a gap between the hard plastic plate 18 and the pressing column 13, and the gap is 3-5 cm. The top left side of the hard plastic plate 18 is connected to a relative The supporting footboard 19 is provided to facilitate the patient to place his feet on the supporting footboard 19. A relatively arranged positioning pin hole 20 is provided on the right side of the top of the hard plastic plate 18, so that the limiting headrest 21 can be positioned and fixed by cooperating with the positioning plate 24 and the pin rod 25, so that the pin rod 25 is inserted into the positioning pin hole 20. A limiting headrest 21 is placed on the right side of the top of the hard plastic plate 18, and the limiting headrest 21 is located on the inner side of the positioning pin hole 20. The limiting headrest 21 is made of sponge material, and a placement groove 22 is provided on the top of the limiting headrest 21, and the placement groove 22 is a semicircular structure, which is convenient for placing the patient's head in the placement groove 22, and a sponge layer is bonded to the placement groove 22.

[0030] Reference Figure 1 、 2 , 4 and 5, an air outlet 23 is provided at the center of the placement groove 22, which is convenient for the air outlet 23 to be used in conjunction with the face placement groove 26, making the cushioned breathing smoother. A positioning plate 24 is welded on one side of the limiting headrest 21 relative to the positioning pin hole 20, and a pin hole is also provided on the positioning plate 24 relative to the positioning pin hole 20. The pin rod 25 is inserted into the positioning pin hole 20 through the pin hole on the positioning plate 24. The positioning plate 24 and the pin rod 25 are both made of hard plastic. A face placement groove 26 and a neck placement groove 27 are provided on the top of the limiting headrest 21, which is convenient for placing the patient's face in the face placement groove 26, and the patient's neck is placed in the neck placement groove 27, which is convenient for the patient to turn over and check. The neck placement groove 27 is a semicircular structure, and the face placement groove 26 and the neck placement groove 27 are a connecting structure. The placement groove 22 and the face placement groove 26 are a connecting structure, and the inner walls of the face placement groove 26 and the neck placement groove 27 are bonded with a rubber layer.

[0031] The CT scanner of the present invention consists of three parts: the first part is the input part, which includes a scanning area selection interface and a patient weight meter; the second part is the calculation part, which calculates the comparative dose and flow rate data based on different scanning areas and patient weight data; the third part is the output part, which includes an output display interface that displays the calculated dose and flow rate and can also be connected to a high-pressure injector used in clinical practice to directly output the injection plan to the high-pressure injector.

[0032] The examination site is output, and the patient's weight is measured and the data is transmitted to the computer. The computer selects the contrast agent injection plan, and the injection plan is transmitted to the high-pressure injector and the injection plan is transmitted to the computer. At this time, the computer displays the injection plan.

[0033] Working principle:

[0034] In the present invention, when examining the patient, the patient lies flat on the hard plastic plate 18 with his feet placed on the supporting foot plates 19. At this time, the patient's head is placed inside the placement groove 22. Due to the patient's own weight, the hard plastic plate 18 is pressed downward, causing the hard plastic plate 18 to drive the positioning support plate 10 and the limiting sleeve 9 to move toward the inside of the limiting groove 7. At this time, the hard plastic plate 18 contacts the pressing column 13, and the pressing column 13 moves downward under the action of the hard plastic plate 18. At this time, the pressing plate 12 drives the extrusion column 14 and the counterweight 15 to move upward under the action of the positioning shaft 11 and the bearing. When the extrusion column 14 contacts the small-range spoke-type force sensor 17, the small-range spoke-type force sensor 17 outputs the patient's weight data. After the examination is completed, the patient moves to the ground. At this time, the hard plastic plate 18 is pushed upward by the limiting sleeve 9 and the positioning support plate 10 under the action of the spring 8, so that the hard plastic plate 18 returns to its initial position.

[0035] In the present invention, when the patient needs to turn over for examination, the pin rod 25 is pulled out and the limiting headrest 21 is turned over so that the face placement groove 26 is located directly above the hard plastic plate 18. The pin rod 25 is inserted into the positioning pin hole 20 through the pin hole on the positioning plate 24, and the limiting headrest 21 can be limited and fixed. The cushion lies on the hard plastic plate 18, and the patient's feet are placed in front of the supporting footboard 19. At this time, the patient's face is placed inside the face placement groove 26, and the patient's neck is placed in the neck placement groove 27. At this time, the hard plastic plate 18 moves downward. At this time, the hard plastic plate 18 presses the pressing column 13 downward, so that the pressing plate 12 drives the extrusion column 14 to move upward, so that the extrusion column 14 contacts the small-range spoke-type force sensor 17. At this time, the small-range spoke-type force sensor 17 outputs the patient's weight data.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A CT scanner, comprising an operating table (1) and a pin (25), characterized in that: A lifting platform (2) is fixedly mounted at the center of the bottom of the operating table (1); a placement base (3) is fixedly mounted at the bottom end of the lifting platform (2); a placement cavity (4) is provided at the top of the operating table (1); a positioning support mechanism (5) is fixedly mounted on the bottom end of the placement cavity (4); the positioning support mechanism (5) comprises a limit plate (6); a limit plate (6) is fixedly mounted on the bottom end of the placement cavity (4); and a limit groove (7) arranged linearly is provided on the top of the limit plate (6); A positioning shaft (11) is fixedly mounted at the middle of the opposite surface of the limiting plate (6); a pressing plate (12) is mounted at the middle of the positioning shaft (11) via a bearing; a pressing column (13) is threadedly connected to the right side of the top of the pressing plate (12); and an extrusion column (14) is threadedly connected to the left side of the top of the pressing plate (12); A counterweight (15) is fixedly mounted on the left end of the bottom of the positioning shaft (11), a fixing plate (16) is fixedly mounted on the left side of the inner wall of the placement cavity (4), a small-range spoke-type force sensor (17) is fixedly mounted at the middle position of the bottom end of the fixing plate (16), the bottom of the small-range spoke-type force sensor (17) and the top of the limit plate (6) are located on the same horizontal line, the small-range spoke-type force sensor (17) and the extrusion column (14) are arranged opposite to each other, and a spacing is left between the small-range spoke-type force sensor (17) and the fixing plate (16), and the spacing is 5-10 cm; A hard plastic plate (18) is placed inside the placement cavity (4), and the hard plastic plate (18) is located on the right side of the fixed plate (16). The top of the hard plastic plate (18) is fixedly mounted on the positioning support plate (10). The top of the hard plastic plate (18) and the top of the fixed plate (16) are located on the same horizontal plane. The thickness of the hard plastic plate (18) is less than the thickness of the fixed plate (16). A spacing is left between the hard plastic plate (18) and the pressing column (13), and the spacing is 3-5 cm.

2. The CT scanner according to claim 1, wherein: A spring (8) is fixedly mounted on the inner bottom end of the limiting groove (7), a limiting sleeve (9) is movably inserted inside the limiting groove (7), the limiting sleeve (9) is sleeved on the spring (8), and the top end of the spring (8) is fixedly mounted on the inner top end of the limiting sleeve (9), and a positioning support plate (10) is fixedly mounted on the top of the limiting sleeve (9).

3. The CT scanner according to claim 2, wherein: The left side of the top of the hard plastic plate (18) is connected to a supporting foot plate (19) arranged oppositely via a screw thread, the right side of the top of the hard plastic plate (18) is provided with a positioning pin hole (20) arranged oppositely, a limited headrest (21) is placed on the right side of the top of the hard plastic plate (18), and the limited headrest (21) is located on the inner side of the positioning pin hole (20), and a placement groove (22) is opened on the top of the limited headrest (21), and the placement groove (22) is a semicircular structure.

4. The CT scanner according to claim 3, wherein: An air outlet (23) is provided at the center of the placement groove (22); a positioning plate (24) is welded to a side of the positioning headrest (21) opposite to the positioning pin hole (20); a pin hole is also provided on the positioning plate (24) at a position opposite to the positioning pin hole (20); the pin rod (25) is inserted into the positioning pin hole (20) through the pin hole on the positioning plate (24); the positioning headrest (21) is made of sponge material, and the positioning plate (24) and the pin rod (25) are both made of hard plastic material.

5. The CT scanner according to claim 4, characterized in that: The top of the position-limiting headrest (21) is provided with a face placement groove (26) and a neck placement groove (27); the face placement groove (26) and the neck placement groove (27) are in a communicating structure; the placement groove (22) and the face placement groove (26) are in a communicating structure; and the inner walls of the face placement groove (26) and the neck placement groove (27) are bonded with a rubber layer.

6. The CT scanner according to claim 5, characterized in that: The neck placement groove (27) is a semicircular structure, the length of the spring (8) is greater than the depth of the limiting groove (7), the length of the limiting sleeve (9) inserted into the limiting groove (7) is 5-8 centimeters, and a sponge layer is bonded to the placement groove (22).

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