Rapid positioning mark for CT head scanning

Abstract

The utility model discloses a rapid positioning mark for CT head scanning. The rapid positioning mark comprises a base; the CT scanner is fixedly arranged on one side of the top end of the base; the bed body is fixedly arranged on the other side of the top end of the base; the base line rapid positioning mechanism is arranged on one side of the CT scanner; the headrest is fixedly arranged on one side of the top end of the bed body; the head fixing mechanism is arranged at the top end of the headrest. According to the rapid positioning mark for CT head scanning, a base line rapid positioning mechanism is arranged to control up-down and left-right adjustment of a white character plate, so that a base line can be rapidly positioned, the positioning precision is improved, a white paper plate can be conveniently detached and fixed by arranging a clamping column, the position of the base line can be clearly reflected by arranging the white paper plate, and the positioning precision is improved. Therefore, the head position can be quickly and accurately positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of CT image positioning, in particular to a CT head scanning rapid positioning mark. Background Art

[0002] In the modern medical system, CT is an indispensable medical technology. CT images and MRI are high-resolution medical technologies. However, when performing this activity, auxiliary positioning is often required to facilitate positioning and detection of the patient's body.

[0003] Currently, doctors need to adjust the scanning bed multiple times to ensure the correct positioning of the patient's head, but the operation is complicated and the doctor needs to stand next to the equipment to clearly perform the scanning positioning. However, the close contact operation method will greatly increase the risk of infection for medical staff. When scanning the patient's head, the deviation of the patient's head will seriously affect the test results and reduce the accuracy of the scan. Utility Model Content

[0004] The purpose of the utility model is to provide a CT head scanning rapid positioning mark to solve the problem in the prior art that doctors need to stand next to the equipment so as to be able to clearly perform scanning positioning, but the close contact operation mode will greatly increase the risk of infection for medical staff. When scanning the patient's head, the deviation of the patient's head will seriously affect the detection result and reduce the accuracy of the scan.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a CT head scanning rapid positioning mark, comprising:

[0006] Base;

[0007] A CT scanner is fixedly arranged on one side of the top of the base;

[0008] A bed body, fixedly arranged on the other side of the top of the base;

[0009] A baseline rapid positioning mechanism, arranged on one side of the CT scanner;

[0010] A headrest, fixedly arranged on one side of the top end of the bed body;

[0011] The head fixing mechanism is arranged on the top of the headrest.

[0012] Preferably, the baseline rapid positioning mechanism includes: a strip column, which is fixedly arranged on one side of the CT scanner; a shell is fixedly arranged on the rear side of the strip column; a first servo motor is fixedly arranged on one side of the shell; the output end of the first servo motor extends into the inner cavity of the shell and is keyed to a gear; a first guide rod is fixedly arranged in the inner cavity of the strip column along the up and down directions; a rack is adaptively matched with the outer wall of the first guide rod, and the gear is meshed with one side of the rack; a support column is fixedly arranged on the front side of the rack, and the support column extends out of the front side of the strip column; a hydraulic cylinder is fixedly arranged on one side of the support column; a fixed plate, which is fixedly arranged at one end of the hydraulic cylinder, and one end of the hydraulic cylinder extends out of one end of the support column and is fixedly connected to one side of the fixed plate; second guide rods are fixedly arranged at both upper and lower ends of one side of the support column, and one end of the second guide rod is adaptively plugged with one side of the fixed plate; a white paper board is arranged on the front side of the fixed plate.

[0013] Preferably, the fixing plate is in an "L" shape, the number of the white paperboards is two, and the two white paperboards are vertically arranged.

[0014] Preferably, a plurality of card blocks are fixedly provided on the outer side of the fixing plate, a plurality of card columns are fixedly provided on the rear side of the white paperboard, a through hole is opened on the front side of the fixing plate, and the rear side of the card column passes through the inner cavity of the through hole.

[0015] Preferably, the head fixing mechanism includes: a limiting plate, a limiting plate is rotatably provided on both the front and rear sides of the top end of the headrest; a rotating plate is fixedly provided on one end of the limiting plate, and the rotating plate is located in the inner cavity of the headrest; connecting columns are plugged into both the front and rear sides of the bottom end of the inner cavity of the headrest, and one end of the connecting column extends into the inner cavity of the bed; a U-shaped column is fixedly provided on the top of the connecting column; limiting columns are fixedly provided on both the left and right ends of one side of the U-shaped column; a slider is fixedly provided on both the left and right sides of the rotating plate on one side of the limiting column, and the slider is plugged into the inner cavity of the strip hole.

[0016] Preferably, the head fixing mechanism also includes: a second servo motor, which is fixedly arranged at the bottom end of the inner cavity of the headrest; the output end of the second servo motor extends into the inner cavity of the bed and is keyed to a first bevel gear; a lead screw is rotatably arranged in the inner cavity of the bed through a bearing along the front and rear directions; lead screw nuts are threaded on both the front and rear sides of the outer wall of the lead screw, and the bottom end of the connecting column is fixedly connected to the top end of the lead screw nut; a second bevel gear is keyed to the outer wall of the lead screw, and the second bevel gear is meshed with the first bevel gear.

[0017] Preferably, the threads on the front and rear sides of the lead screw are arranged in opposite directions.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the CT head scan rapid positioning mark:

[0019] The baseline quick positioning mechanism can control the white-letter board to adjust up and down and left and right, so as to quickly position the baseline and improve the positioning accuracy. The white-letter board can be easily disassembled and fixed by the clamping column. The baseline position can be clearly reflected by the white-letter board, so as to quickly and accurately position the head.

[0020] 2. The head fixing mechanism can be used to control the limit plate to fold outward until one side of the limit plate contacts both sides of the patient's head, so as to limit and fix the patient's head, prevent the patient from moving his head, and improve the accuracy of scanning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 For this utility model Figure 1 A in the enlarged view;

[0023] Figure 3 It is a right side cross-sectional view of the strip column of the utility model;

[0024] Figure 4 It is a top cross-sectional view of the white paperboard of the utility model;

[0025] Figure 5 It is a right side cross-sectional view of the headrest of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the U-shaped column of the utility model.

[0027] In the figure: 1, base; 2, CT scanner; 3, bed; 4, baseline rapid positioning mechanism; 41, strip column; 42, shell; 43, first servo motor; 44, gear; 45, first guide rod; 46, rack; 47, support column; 48, hydraulic cylinder; 49, fixing plate; 410, second guide rod; 411, white paper board; 412, block; 413, clamping column; 414, through hole; 5, headrest; 6, head fixing mechanism; 61, limit plate; 62, rotating plate; 63, connecting column; 64, U-shaped column; 65, limit column; 66, slider; 67, strip hole; 68, second servo motor; 69, first bevel gear; 610, lead screw; 611, lead screw nut; 612, second bevel gear. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-6 , the utility model provides a technical solution: a CT head scanning rapid positioning mark, comprising: a base 1, a CT scanner 2, a bed 3, a baseline rapid positioning mechanism 4, a headrest 5 and a head fixing mechanism 6;

[0030] The CT scanner 2 is fixedly arranged on one side of the top of the base 1, the bed 3 is fixedly arranged on the other side of the top of the base 1, the baseline quick positioning mechanism 4 is arranged on one side of the CT scanner 2, the headrest 5 is fixedly arranged on one side of the top of the bed 3, and the head fixing mechanism 6 is arranged on the top of the headrest 5.

[0031] As a preferred solution, further, the baseline quick positioning mechanism 4 includes: a bar column 41, a housing 42, a first servo motor 43, a gear 44, a first guide rod 45, a rack 46, a support column 47, a hydraulic cylinder 48, a fixing plate 49, a second guide rod 410, a white paper board 411, a block 412, a clamping column 413 and a through hole 414;

[0032] In order to be able to adjust the position of the white paperboard 411 up and down, the strip column 41 is fixedly arranged on one side of the CT scanner 2, the shell 42 is fixedly arranged on the rear side of the strip column 41, the first servo motor 43 is fixedly arranged on one side of the shell 42, the output end of the first servo motor 43 extends into the inner cavity of the shell 42 and is keyed to a gear 44, the inner cavity of the strip column 41 is fixedly arranged with a first guide rod 45 in the up and down direction, the rack 46 is adaptively matched with the outer wall of the first guide rod 45, and the gear 44 is meshed with one side of the rack 46, and the first servo motor 43 can drive the gear 44 to rotate clockwise around its own axis after being started, so as to move the rack 46 vertically upward under the restriction of the first guide rod 45;

[0033] In order to be able to adjust the positions of the fixed plate 49 and the white paperboard 411 left and right, the support column 47 is fixedly set on the front side of the rack 46, and the support column 47 extends out of the front side of the strip column 41, the support column 47 is adapted and plugged into the strip column 41, and the support column 47 has sufficient space to move up and down, the hydraulic cylinder 48 is fixedly set on one side of the support column 47, the fixed plate 49 is fixedly set at one end of the hydraulic cylinder 48, and one end of the hydraulic cylinder 48 extends out of one end of the support column 47 and is fixedly connected to one side of the fixed plate 49. After the hydraulic cylinder 48 is started, it can push the fixed plate 49 to move to one side under the restriction of the second guide rod 410. The second guide rod 410 is fixedly set at both upper and lower ends of one side of the support column 47, and one end of the second guide rod 410 is adapted and plugged into one side of the fixed plate 49, and the white paperboard 411 is set on the front side of the fixed plate 49.

[0034] As a preferred solution, further, the shape of the fixing plate 49 is "L"-shaped, the number of the white paperboards 411 is two, and the two white paperboards 411 are vertically arranged to facilitate positioning of the scanning baseline.

[0035] In order to facilitate the fixing and disassembly of the white cardboard 411, a plurality of blocks 412 are fixedly provided on the outer side of the fixing plate 49, a plurality of clamping columns 413 are fixedly provided on the rear side of the white cardboard 411, a through hole 414 is opened on the front side of the fixing plate 49, and the rear side of the clamping column 413 passes through the inner cavity of the through hole 414. The clamping column 413 is made of plastic material, and both sides of the clamping column 413 can be pressed and tightened.

[0036] As a preferred solution, further, the head fixing mechanism 6 includes: a limit plate 61, a rotating plate 62, a connecting column 63, a U-shaped column 64, a limit column 65, a slider 66, a bar hole 67, a second servo motor 68, a first bevel gear 69, a lead screw 610, a lead screw nut 611 and a second bevel gear 612;

[0037] In order to limit the head, a limit plate 61 is rotatably provided on both the front and rear sides of the top of the headrest 5, and a rotating plate 62 is fixedly provided at one end of the limit plate 61, and the rotating plate 62 is located in the inner cavity of the headrest 5;

[0038] In order to be able to flip the limit plate 61, connecting columns 63 are inserted on both the front and rear sides of the bottom end of the inner cavity of the headrest 5, and one end of the connecting column 63 extends into the inner cavity of the bed body 3, and the U-shaped column 64 is fixedly set at the top of the connecting column 63, and limiting columns 65 are fixedly set on both the left and right ends of one side of the U-shaped column 64. A strip hole 67 is opened on one side of the limiting column 65, and sliders 66 are fixedly set on the left and right sides of the rotating plate 62, and the sliders 66 are inserted into the inner cavity of the strip hole 67. By moving the limiting column 65, the inner wall of the strip hole 67 can push the slider 66 to make the rotating plate 62 rotate accordingly.

[0039] In order to control the movement of the connecting column 63, the second servo motor 68 is fixedly arranged at the bottom end of the inner cavity of the headrest 5, the output end of the second servo motor 68 extends into the inner cavity of the bed body 3 and is keyed to the first bevel gear 69, the lead screw 610 is rotatably arranged in the inner cavity of the bed body 3 through the bearing along the front and rear directions, the outer wall of the lead screw 610 is screwed with a lead screw nut 611 on both the front and rear sides, and the bottom end of the connecting column 63 is fixedly connected to the top end of the lead screw nut 611;

[0040] In order to drive the lead screw 610 to rotate, the second bevel gear 612 is key-connected to the outer wall of the lead screw 610 , and the second bevel gear 612 is meshed with the first bevel gear 69 .

[0041] As a preferred solution, further, the threads on the front and rear sides of the lead screw 610 are arranged in opposite directions, so that the lead screw nut 611 moves outward or inward at the same time when the lead screw 610 rotates.

[0042] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0043] Step 1: The patient lies on the bed 3 with his head resting on the headrest 5, and the position of the white paperboard 411 is adjusted to quickly locate the baseline. The first servo motor 43 and the hydraulic cylinder 48 are started. After the first servo motor 43 is started, it can drive the gear 44 to rotate clockwise around its own axis, so as to move the rack 46 vertically upward under the restriction of the first guide rod 45, so as to limit the support rod 47 through the bar column 41, so as to move the support rod 47 upward, so as to drive the fixing plate 49 and the white paperboard 411 to move upward, so as to adjust the height of the white paperboard 411 up and down;

[0044] Step 2: After the hydraulic cylinder 48 is started, it can push the fixed plate 49 to move to one side under the restriction of the second guide rod 410, so as to adjust the positions of the fixed plate 49 and the white paper board 411 to the left and right. By adjusting the white paper board 411, it is convenient to quickly locate the scanning baseline;

[0045] Step 3: Press the clamping column 413 inwardly, so that the clamping column 413 can be tightened under the plastic effect and detached from one side of the clamping block 412 through the through hole 414, so as to facilitate the removal and fixation of the white paper board 411;

[0046] Step 4: Start the second servo motor 68. The second servo motor 68 can drive the first bevel gear 69 to rotate clockwise, so that the first bevel gear 69 drives the second bevel gear 612 to rotate counterclockwise, thereby driving the lead screw 610 to rotate counterclockwise. Under the action of the outer wall thread rotation force of the lead screw 610, the lead screw nut 611 moves outward under the restriction of the connecting column 63, so as to drive the U-shaped column 64 and the limiting column 65 to move outward, so that the inner wall of the strip hole 67 pushes the slider 66 to move outward, and through the restriction of the strip hole 67, the slider 66 slides in the strip hole 67 and drives the rotating plate 62 to rotate to one side, so that the limiting plate 61 flips up inward around one end, so that the limiting plate 61 limits and fixes the patient's head, prevents the patient from moving his head, improves the accuracy of scanning, and is conducive to wide promotion.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CT head scan rapid positioning mark, characterized in that: include: Base (1); A CT scanner (2) is fixedly arranged on one side of the top end of the base (1); A bed body (3) is fixedly arranged on the other side of the top end of the base (1); A baseline rapid positioning mechanism (4) is arranged on one side of the CT scanner (2); A headrest (5) fixedly arranged on one side of the top end of the bed body (3); A head fixing mechanism (6) is arranged on the top of the headrest (5).

2. A CT head scanning rapid positioning marker according to claim 1, characterized in that: The baseline rapid positioning mechanism (4) comprises: A strip column (41) fixedly arranged on one side of the CT scanner (2); A housing (42) fixedly disposed on the rear side of the bar-shaped column (41); A first servo motor (43) is fixedly arranged on one side of the housing (42); A gear (44), wherein the output end of the first servo motor (43) extends into the inner cavity of the housing (42) and is keyed to the gear (44); A first guide rod (45), the inner cavity of the strip-shaped column (41) being fixedly provided with the first guide rod (45) in the up-down direction; A rack (46) is adapted to be matched with the outer wall of the first guide rod (45), and the gear (44) is meshed with one side of the rack (46); A support column (47) fixedly disposed on the front side of the rack (46), and the support column (47) extends out of the front side of the strip column (41); A hydraulic cylinder (48) fixedly disposed on one side of the support column (47); A fixing plate (49) is fixedly arranged on one end of the hydraulic cylinder (48), and one end of the hydraulic cylinder (48) extends out of one end of the support column (47) and is fixedly connected to one side of the fixing plate (49); A second guide rod (410), wherein the second guide rod (410) is fixedly provided at both upper and lower ends of one side of the support column (47), and one end of the second guide rod (410) is adapted to be plugged into one side of the fixing plate (49); A white paperboard (411) is arranged on the front side of the fixing plate (49).

3. A CT head scanning rapid positioning marker according to claim 2, characterized in that: The fixing plate (49) is in an "L" shape, the number of the white paperboards (411) is two, and the two white paperboards (411) are arranged vertically.

4. A CT head scanning rapid positioning marker according to claim 3, characterized in that: A plurality of clamping blocks (412) are fixedly arranged on the outer side of the fixing plate (49), a plurality of clamping columns (413) are fixedly arranged on the rear side of the white paperboard (411), a through hole (414) is opened on the front side of the fixing plate (49), and the rear side of the clamping column (413) passes through the inner cavity of the through hole (414).

5. The CT head scanning rapid positioning marker according to claim 1, characterized in that: The head fixing mechanism (6) comprises: A limit plate (61), wherein the limit plates (61) are rotatably provided on both the front and rear sides of the top end of the headrest (5); A rotating plate (62), wherein one end of the limiting plate (61) is fixedly provided with the rotating plate (62), and the rotating plate (62) is located in the inner cavity of the headrest (5); A connecting column (63), wherein the front and rear sides of the inner cavity bottom of the headrest (5) are both plugged with a connecting column (63), and one end of the connecting column (63) extends into the inner cavity of the bed body (3); A U-shaped column (64) fixedly disposed on the top end of the connecting column (63); Limiting posts (65), with limiting posts (65) being fixedly provided at both left and right ends of one side of the U-shaped post (64); A slider (66), a strip-shaped hole (67) is opened on one side of the limiting column (65), and sliders (66) are fixedly arranged on both the left and right sides of the rotating plate (62), and the sliders (66) are plugged into the inner cavity of the strip-shaped hole (67).

6. A CT head scanning rapid positioning marker according to claim 5, characterized in that: The head fixing mechanism (6) further comprises: A second servo motor (68) fixedly disposed at the bottom end of the inner cavity of the headrest (5); A first bevel gear (69), wherein the output end of the second servo motor (68) extends into the inner cavity of the bed (3) and is keyed to the first bevel gear (69); A lead screw (610) is rotatably arranged in the inner cavity of the bed body (3) via a bearing in a front-to-rear direction; A lead screw nut (611), wherein the lead screw nuts (611) are threadedly connected to the front and rear sides of the outer wall of the lead screw (610), and the bottom end of the connecting column (63) is fixedly connected to the top end of the lead screw nut (611); The second bevel gear (612) is key-connected to the outer wall of the lead screw (610), and the second bevel gear (612) is meshed with the first bevel gear (69).

7. A CT head scanning rapid positioning marker according to claim 6, characterized in that: The threads on the front and rear sides of the lead screw (610) are arranged in opposite directions.

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