CT radiography device for guiding body position of patient in imaging department

Abstract

An imaging department CT radiography device used for guiding the body position of a patient comprises a bedstead base, a scanning bed is connected to the bedstead base, a bed body is slidably connected to the scanning bed, the bed body is hollow, a screw is rotatably arranged in the bed body, a motor is further arranged in the bed body, an output shaft of the motor is connected with the screw, a movable frame is arranged on the screw, and the movable frame is connected with the scanning bed. The two sides of the movable frame are connected with an extrusion frame through supporting arms, the end of the extrusion frame is an inclined plane, a movable groove is formed in the bed body, a handrail is rotationally connected to the position, at the movable groove, of the bed body, the handrail is connected with a corner bracket, and the corner bracket is matched with the extrusion frame in an extrusion mode. Movement of the movable frame is controlled only through the motor, the armrests are rotated and lifted firstly, the placement space of the arms is physically occupied, a patient is forced to place the hands on the headrest in the posture of holding the head, and the effect of completely unfolding the thorax is achieved; a linkage lower belt pulley and a screw rod form a rotating whole, and a linkage rotating piece rotates to assist the patient in breathing.

Description

Technical Field

[0001] The present invention relates to the field of CT angiography guiding devices, and in particular to an imaging CT angiography device for guiding the body position of a patient. Background Art

[0002] CT angiography is a medical imaging device that combines CT scanning technology with contrast agent injection to clearly display vascular structure and blood flow dynamics. Its core principle is to inject an iodinated contrast agent intravenously. Leveraging CT's rapid scanning capabilities, it performs multiple scans as the contrast agent flows through the blood vessels, generating a three-dimensional image of the blood vessels using computer reconstruction technology.

[0003] CT angiography is a crucial tool for thoracic vascular imaging, particularly for the diagnosis of acute conditions such as pulmonary embolism and aortic dissection. The diagnostic process requires patient cooperation, such as breathing exercises, requiring patients to hold their breath to minimize respiratory motion artifacts, and positioning instructions, requiring patients to lie supine on the scanning table, arms raised to support their head, and chest fully extended. However, this currently relies solely on guidance from medical staff, making communication difficult for patients with limited comprehension, particularly those with hearing impairments.

[0004] The present invention provides a CT angiography device for guiding the patient's body position to replace the existing scanning bed. The device can guide the patient to have a comfortable lying position during scanning, and can assist in guiding the patient's breathing, thereby improving the angiography efficiency. Summary of the Invention

[0005] In response to the problems raised in the background art, the present invention provides an imaging CT angiography device for guiding the patient's position to solve the problems. The present invention will be further elaborated below.

[0006] A CT angiography device for guiding the patient's position in an imaging department includes a bed frame base, a scanning bed connected to the bed frame base, a bed body slidably connected to the scanning bed, the interior of the bed body is hollow, a screw is provided inside the bed body for rotation, a motor is also provided in the bed body, the output shaft of the motor is connected to the screw, a movable frame is provided on the screw, both sides of the movable frame are connected to an extrusion frame through support arms, the end of the extrusion frame is an inclined surface, a movable groove is provided on the bed body, an armrest is rotatably connected to the bed body at the movable groove, the armrest is connected to a corner frame, and the corner frame is extruded and matched with the extrusion frame.

[0007] Furthermore, the scanning bed is provided with a first slide groove and a second slide groove, and the bed body is provided with a first slide protrusion and a second slide protrusion, and the first slide protrusion and the second slide protrusion respectively cooperate with the first slide groove and the second slide groove, so that the bed body only needs to be pushed in sideways when installing, and the bed body can be embedded in the scanning bed and can be locked on the scanning bed by fasteners.

[0008] Furthermore, guide rods are connected to both sides of the movable frame, and a guide cylinder is connected to the bottom wall of the bed body. The guide rods cooperate with the guide cylinder to guide the movement of the movable frame through the cooperation between the guide rods and the guide cylinder.

[0009] Furthermore, a push plate is connected to the end of the movable frame, a column is provided through the bed, one end of the column exposed to the bed is connected to a push piece, and one end built into the bed is connected to a pushed plate, a first spring is provided on the outer sleeve of the column, and the two ends of the first spring respectively contact the inner wall of the bed and the pushed plate; a headrest is rotatably connected to the bed, and the bottom of the headrest is connected to the pushed piece.

[0010] Furthermore, the column is provided with a shoulder, and the push plate is connected to the end of the movable frame via a telescopic member, and the telescopic member is covered with a second spring. The shoulder of the pushed plate abuts against the inner wall of the headboard, and the pushed plate and the push plate are then in contact and stationary, and the angle of the headrest is fixed, so that the movable frame can continue to move.

[0011] Furthermore, the bed is provided with a second movable groove, with a jumping board located in the second movable groove, which covers the second movable groove. Parallel beams connect the bed's inner wall at the second movable groove, and a rotating member rotates between the beams, which rotates in a controlled manner. The rotating member continuously and intermittently lifts the jumping board, giving the patient lying flat on the jumping board a tactile sensation, guiding the patient to breathe in response to the intermittent tactile sensation and adjust their breathing rate.

[0012] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The gear train is constructed accordingly, and a way of increasing the size of the meshing rods and of removing the tooth. The purpose is to transmit the rotation of the screw to the rotating part. The rotation of the screw is transmitted to the rotating part through the lower pulley, conveyor belt, upper pulley and rotating shaft, so that the screw and the rotating part rotate in conjunction.

[0013] Beneficial effects: Compared with the prior art, the present invention controls the movement of the mobile frame only through a single power source motor, first causing the armrest to rotate and rise, physically occupying the arm placement space, forcing the patient to place his hands on the headrest in a head-holding posture, achieving the effect of fully expanding the chest; then continuing to move to push the headrest to rotate into place, allowing the patient to lie flat in the correct posture; finally, the lower pulley and the screw are linked to form a rotating whole, and the rotating part is linked to rotate, assisting the patient's breathing, allowing the patient to relax, and reducing the formation of respiratory motion artifacts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 : A schematic structural diagram of the imaging CT angiography device of the present invention;

[0015] Figure 2 : Schematic diagram of the internal structure of the bed;

[0016] Figure 3 : Figure 2 A schematic diagram of the structure at center A;

[0017] Figure 4 : Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0018] In the figure: bed frame base 1, first slide 201, second slide 202, scanning bed 2, bed body 3, first sliding protrusion 301, second sliding protrusion 302, movable groove 303, second movable groove 304, screw 4, necking section 401, friction section 402, motor 5, movable frame 6, spring groove 601, support arm 7, extrusion frame 8, armrest 9, angle frame 10, guide rod 11, guide cylinder 12, push plate 13, column 14, shoulder 1 41. Pushing member 15, pushed plate 16, first spring 17, headrest 18, pushed member 19, telescopic member 20, second spring 21, jumping plate 22, crossbeam 23, rotating member 24, sliding column 25, slide plate 26, third spring 27, rotating shaft 28, upper pulley 29, guide frame 30, second guide rod 31, sliding frame 32, fourth spring 33, positioning frame 34, lower pulley 35, conveyor belt 36, pressure member 37. DETAILED DESCRIPTION

[0019] Next, combine the Figure 1-Figure 4 A specific embodiment of the present invention is described in detail.

[0020] Reference Attachment Figure 1A CT angiography device for guiding a patient's position in an imaging department includes a bed frame base 1 standing on a foundation, a scanning bed 2 being connected to the bed frame base 1, a bed body 3 being slidably connected to the scanning bed 2, the scanning bed 2 being provided with a first slide groove 201 and a second slide groove 202, and the bed body 3 being provided with a first slide protrusion 301 and a second slide protrusion 302, the first slide protrusion 301 and the second slide protrusion 302 respectively cooperating with the first slide groove 201 and the second slide groove 202, so that the bed body 3 only needs to be pushed in sideways when installing, and the bed body 3 can be embedded in the scanning bed 2 and can be locked on the scanning bed by fasteners.

[0021] Reference Attachment Figure 2 The interior of the bed 3 is hollow, and a screw 4 is rotatably mounted within the bed 3. A motor 5 is also mounted within the bed 3. A pulley is keyed to the output shaft of the motor 5 and the screw 4, and the pulleys are connected by a belt. A movable frame 6 is mounted on the screw 4. The movable frame 6 is connected to an extrusion frame 8 on both sides via support arms 7. The extrusion frame 8 has an inclined end. An armrest 9 is rotatably mounted on the inner wall of the bed 3. An angle bracket 10 is attached to the armrest 9. The angle bracket 10 is extruded into engagement with the extrusion frame 8. The bed 3 has a movable slot 303 in the armrest 9, allowing the angle bracket 10 to rotate within this slot.

[0022] Guide rods 11 are connected to both sides of the movable frame 6 , and a guide cylinder 12 is connected to the inner bottom wall of the bed body 3 . The guide rods 11 cooperate with the guide cylinder 12 to guide the movement of the movable frame 6 .

[0023] In the initial state, the armrest 9 is automatically positioned in the movable groove of the bed. After the motor 5 is started, it drives the screw 4 to rotate. The rotating screw 4 controls the movement of the movable frame 6 on it. Under the guidance of the guide cylinder 12, the rotational freedom is suppressed. The movable frame 6 drives the extrusion frame 8 connected to it to move horizontally. When the extrusion frame 8 approaches the armrest 9, the inclined surface of its end pre-contacts the corner frame 10 of the armrest 9. Through the extrusion effect, the armrest 9 is forced to rotate and then lifted from the movable groove. When the inclined surface of the end of the extrusion frame 8 completely passes the corner frame 10, the corner frame 10 abuts the top surface of the extrusion frame 8. Thereafter, when the extrusion frame 8 moves, the armrest remains in the raised state.

[0024] In this embodiment, when the patient needs to lie flat on the scanning bed, the armrests 9 are in a flat and stowed position, allowing the patient to lie on the bed from either side. More importantly, after the patient lies flat, the armrests 9 can be raised to occupy the space where the patient's arms would otherwise be placed. That is, due to the presence of the armrests 10 and their raised position, during the scanning process, the patient's arms cannot be placed flat on the bed 3 or crossed across their chest due to their physical presence. The most comfortable position is to lie flat with their head in their arms. In this case, the patient's chest is fully extended, thereby ensuring the quality of the acquired CT images.

[0025] Reference Attachment Figure 2 The end of the movable frame 6 is connected to a push plate 13, and a column 14 is provided through the bed body 3. The end of the column 14 exposed to the bed body 3 is connected to a push piece 15, and the end built into the bed body 3 is connected to a pushed plate 16. The column 14 is covered with a first spring 17, and the two ends of the first spring 17 respectively contact the inner wall of the bed body 3 and the pushed plate 16; a headrest 18 is rotatably connected to the bed body 3, and a pushed piece 19 is connected to the bottom of the headrest 18, and the pushing piece 15 acts on the pushed piece 19.

[0026] After the patient lies flat, the head elevation angle can be adjusted according to the patient's condition. Specifically, the motor 5 continues to drive the screw 4 to rotate, controlling the movable frame 6 to continue to move forward until the pushing plate 13 contacts the pushed plate 16. The pushing plate 13 continues to move and pushes the pushed plate 16 to move. While compressing the first spring 17, the length of the column 14 exposed outside the head of the bed 3 is extended, and the pushing member 15 pushes the pushed member 19 to move, thereby causing the headrest 18 to rotate, thereby achieving the purpose of adjusting the headrest angle. The headrest is raised, which indicates that CT angiography will be performed immediately.

[0027] Reference Attachment Figure 2 The column 14 is provided with a boss 141. The push plate 13 is connected to the end of the movable frame 6 via a telescopic member 20. The telescopic member 20 is covered with a second spring 21. Under the push of the push plate 13, the pushed plate 16 moves until the boss 141 on it abuts the inner wall of the headboard 3. After that, the pushed plate 16 and the push plate 13 are in contact and stationary, and the headrest angle is fixed. The movable frame 6 will continue to move. At this time, the telescopic member 20 contracts, and the second spring 21 is compressed. The deformation of the second spring 21 corresponds to the forward displacement of the movable frame 6. The elastic coefficient of the second spring 21 is greater than that of the first spring 17. Before the boss 141 abuts the inner wall of the headboard 3, the second spring 21 acts as a rigid member, which can drive the headrest to rotate. After the boss 141 abuts the inner wall of the headboard 3, it acts as an elastic member to absorb the displacement of the movable frame.

[0028] Reference Attachment Figure 2 and Figure 4 The present invention also includes a breathing assistance mechanism to help patients stabilize their emotions, adjust their breathing rate, and reduce artifacts caused by respiratory movement. Specifically, a second movable groove 304 is provided on the bed 3, and a jumping board 22 is installed at the second movable groove 304. The jumping board 22 covers the second movable groove 304. Parallel beams 23 are connected to the inner wall of the bed 3 at the second movable groove 304. Rotating members 24 are installed between the beams 23 for rotation. The rotating members 24 rotate in a controlled manner, thereby continuously and intermittently lifting the jumping board 22, giving the patient lying flat on the jumping board 22 a sense of touch, guiding the patient to breathe according to the intermittent touch and adjust their breathing rate.

[0029] Reference Attachment Figure 2-Figure 4, In this embodiment, the power source for controlling the rotation of the jumping plate 22 also comes from the motor 5. The specific scheme is as follows: spring grooves 601 are symmetrically provided on both sides of the movable frame 6, and a sliding column 25 is provided in the spring groove 601. A slide plate 26 is slidably provided on the slide column 25. The screw rod 4 passes through the slide plate 26 without contacting the slide plate. The slide column 25 is sleeved with a third spring 27. The two ends of the third spring 27 respectively contact the slide plate 26 and the inner wall of the spring groove 601; the rotating member 24 is keyed to a rotating shaft 28, and the rotating shaft 28 passes through the crossbeam 23 and is keyed to the upper pulley 29; the inner wall of the bed body 3 is connected to an H-shaped guide frame 30, and a second guide rod 31 is provided on the guide frame 30, and a sliding frame 32 is slidably provided on the second guide rod 31. A fourth spring 33 is sleeved on the second guide rod 31. The two ends of the four springs 33 contact the guide frame 30 and the sliding frame 32 respectively; the sliding frame 32 is connected to a positioning frame 34, and the upper pulley 29 slides downward to contact the positioning frame 34. At the same time, a necking section 401 is provided on the screw 4 near the guide frame 30, and a lower pulley 35 is coaxially arranged on the necking section 401. The lower pulley 35 is connected through a conveyor belt 36. The tension of the conveyor belt presses the lower pulley 35 tightly against the positioning frame 34, but the upper pulley 29 and the lower pulley 35 retain the freedom of rotation relative to the positioning frame 34. The sliding frame 32 is connected to a pressure piece 37; the necking section 401 on the screw 4 is connected to a friction section 402 with a gradually increasing diameter, and the lower pulley 35 is provided with an extrusion annular surface on the side facing the friction section 402.

[0030] When the headrest is adjusted to the right position, the moving frame 6 is controlled to continue to move until the slide plate 26 contacts the pressure piece 37, and then the slide plate 26 pushes the pressure piece 37 to move, so that the sliding frame 32 slides on the guide frame 30 and compresses the fourth spring 33. While the sliding frame 32 moves forward, the positioning frame 34 drives the upper pulley 29 and the lower pulley 35 to move forward synchronously until the extrusion annular surface of the lower pulley 35 abuts against the friction section 402 on the screw 4; thereafter, the pressure piece 37 is stationary, and the lower pulley 35 and the screw 4 are pressed together by the extrusion structure. The rotating member 24 forms a rotating whole, and the rotation of the screw 4 is transmitted to the rotating member 24 through the lower pulley 35, the conveyor belt 36, the upper pulley 29, and the rotating shaft 28, so that the screw 4 is linked with the rotating member 24 to rotate; the rotating rotating member 24 continuously and intermittently lifts the jumping plate 22 to assist the patient's breathing. During the rotation process, the movable frame 6 is controlled to continue to move a short distance, so that the patient can adapt to adjust the breathing frequency. During this process, the displacement of the movable frame 6 that continues to move is reflected in the compression of the second spring 21 and the fourth spring 33.

[0031] In the present invention, the movement of the mobile frame is controlled by only a single power source, namely the motor, which first rotates and rises the armrests to physically occupy the arm placement space, forcing the patient to place his hands on the headrest in a head-holding posture, thereby achieving the effect of fully expanding the chest; then continues to move to push the headrest to rotate into place, allowing the patient to lie flat in the correct posture; finally, the lower pulley and the screw are linked to form a rotating whole, and the rotating parts are linked to rotate to assist the patient's breathing, relax the patient, and reduce the formation of respiratory motion artifacts.

[0032] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A CT imaging device for guiding a patient's position, comprising a bed frame base (1), a scanning bed (2) being connected to the bed frame base (1), and characterized in that: A bed (3) is slidably connected to the scanning bed (2). The interior of the bed (3) is hollow. A screw (4) is rotatably provided inside the bed (3). A motor (5) is also provided inside the bed (3). The output shaft of the motor (5) is connected to the screw (4). A movable frame (6) is provided on the screw (4). Both sides of the movable frame (6) are connected to an extrusion frame (8) through a support arm (7). The end of the extrusion frame (8) is an inclined surface. A movable groove (303) is provided on the bed (3). An armrest (9) is rotatably connected to the movable groove on the bed (3). The armrest (9) is connected to a corner frame (10). The corner frame (10) is extruded and matched with the extrusion frame (8).

2. The imaging CT angiography device according to claim 1, characterized in that: The scanning bed (2) is provided with a first slide groove (201) and a second slide groove (202), and the bed body (3) is provided with a first sliding protrusion (301) and a second sliding protrusion (302), wherein the first sliding protrusion (301) and the second sliding protrusion (302) respectively cooperate with the first slide groove (201) and the second slide groove (202).

3. The imaging CT angiography device according to claim 1, characterized in that: Guide rods (11) are connected to both sides of the movable frame (6), and a guide cylinder (12) is connected to the inner bottom wall of the bed body (3), and the guide rods (11) cooperate with the guide cylinder (12).

4. The imaging CT angiography device according to claim 3, characterized in that: The end of the movable frame (6) is connected to a push plate (13), a column (14) is provided through the bed body (3), one end of the column (14) exposed from the bed body (3) is connected to a push piece (15), and one end of the column (14) built into the bed body (3) is connected to a push plate (16), a first spring (17) is provided on the outer sleeve of the column (14), and the two ends of the first spring (17) contact the inner wall of the bed body (3) and the push plate (16) respectively; a headrest (18) is rotatably connected to the bed body (3), and a push piece (19) is connected to the bottom of the headrest (18).

5. The imaging CT angiography device according to claim 4, characterized in that: The column rod (14) is provided with a boss (141), and the push plate (13) is connected to the end of the movable frame (6) through a telescopic member (20), and the outer sleeve of the telescopic member (20) is provided with a second spring (21).

6. The imaging CT angiography device according to claim 5, characterized in that: The bed body (3) is provided with a second movable groove (304), a jumping plate (22) is provided at the second movable groove (304), and the jumping plate (22) covers the second movable groove (304); the inner wall of the bed body (3) at the second movable groove (304) is connected with parallel beams (23), and rotating parts (24) are rotatably provided between the beams (23), and the rotating parts (24) rotate in a controlled manner.

7. The imaging CT angiography device according to claim 6, characterized in that: The movable frame (6) is symmetrically provided with spring grooves (601) on both sides, and a slide column (25) is provided in the spring groove (601). A slide plate (26) is slidably provided on the slide column (25). The screw rod (4) passes through the slide plate (26) without contacting the slide plate. The slide column (25) is sleeved with a third spring (27). The two ends of the third spring (27) respectively contact the slide plate (26) and the inner wall of the spring groove (601); the rotating member (24) is key-connected to a rotating shaft (28), and the rotating shaft (28) is key-connected to an upper pulley (29); the inner wall of the bed body (3) is connected to a guide frame (30), a second guide rod (31) is provided on the guide frame (30), a sliding frame (32) is slidably provided on the second guide rod (31), a fourth spring (33) is sleeved on the second guide rod (31), and the fourth spring (33) is sleeved on the second guide rod (31). The two ends of the spring (33) contact the guide frame (30) and the sliding frame (32) respectively; the sliding frame (32) is connected to a positioning frame (34), and the upper pulley (29) slides downward to contact the positioning frame (34). At the same time, a necking section (401) is provided on the screw rod (4) near the guide frame (30), and a lower pulley (35) is coaxially arranged on the necking section (401). The lower pulley (35) is connected through a conveyor belt (36), and the conveyor belt presses the lower pulley (35) against the positioning frame (34). The sliding frame (32) is connected to a pressure piece (37); the necking section (401) on the screw rod (4) is connected to a friction section (402) with a gradually increasing diameter, and the lower pulley (35) is provided with an extrusion annular surface on the side facing the friction section (402).

Images