CN116919432B - A medical imaging device based on mobile DR - Google Patents

Abstract

The invention belongs to the field of medical imaging and discloses a medical imaging equipment based on mobile DR, which includes a mobile base, a column, a sliding plate, a flip rod and a lifting bracket; a lifting bracket is installed between the two columns, and the lifting bracket extends from one end of the mobile base Universally connected to the DR machine head; the opposite sides of the two columns are connected to sliding plates that can slide up and down respectively. The two sliding plates are rotatably and slidably connected to the flipping rods through connecting mechanisms. The tops of the two flipping rods are connected to the flat panel detection device, the DR head is located between two flipping rods; compared with the existing technology, the present invention integrates a flat-panel detector on a mobile DR device, which can facilitate X-ray detection of patients and eliminates the need for equipment such as a chest X-ray stand. By adjusting the flipping angle and extension length of the flipping rod, the flat-panel detector can be placed at various angles. With the universal adjustment of the DR head and the height adjustment of the slider, it can adapt to various testing parts and postures of the patient, making testing versatile. Stronger.

Description

A medical imaging device based on mobile DR

Technical field

The invention belongs to the field of medical imaging, and specifically relates to a medical imaging device based on mobile DR.

Background technique

Mobile DR can quickly obtain and confirm photographic images after a few seconds of exposure, eliminating the need for complicated procedures such as traditional film development and IP board information reading. Images can be processed on-site, network transmitted, and printed, which is efficient, fast, and more direct. Today, the perfect combination of digital technology and X-ray photography technology has enabled the wide application of digital X-ray photography. Bedside mobile digital photography technology emerged at the historic moment. Mobile DR has created a new digital era for bedside photography.

Currently, in the use of mobile DR, it is necessary to cooperate with flat-panel detectors to achieve direct digital photography and on-site imaging of various parts in various environments. For example, testing on the imaging table or placing a flat-panel detector on a chest X-ray stand. Since the flat-panel detector is not integrated into the mobile DR device, additional equipment is required to place the flat-panel detector during testing. Moreover, the adjustable angles and positions of the flat-panel detector and the DR head are relatively few, making it impossible to target various parts of the patient. The posture is comprehensively tested, and the patient needs to adjust his position by himself.

Contents of the invention

In order to solve the above technical problems, the present invention provides a medical imaging device based on mobile DR to solve the problems in the existing technology. In order to achieve the above invention objectives, the technical solution adopted by the present invention is:

A medical imaging equipment based on mobile DR, including a movable base, a column, a sliding plate, a flip rod and a lifting bracket; two of the columns are fixedly connected to the mobile base, and the lifting bracket is installed between the two columns. One end of the lifting bracket extends out of the mobile base and is universally connected to the DR machine head; the opposite sides of the two uprights can be connected to the sliding plate by sliding up and down respectively, and the two sliding plates can be connected through a connecting mechanism. The flipping rods are rotatably and slidably connected, the tops of the two flipping rods are connected to flat-panel detectors, and the DR head is located between the two flipping rods; the connecting mechanism is used to lock the flipping of the flipping rods. angle and sliding length, and the height of the sliding plate can be locked, so that detection intervals with different tilt angles are formed between the flat-panel detector and the DR head, which are used to detect different postures and parts of the patient.

Further, T-shaped slots are respectively provided on opposite sides of the two upright columns, and the sliding plate is slidably located in the T-shaped slot; the connecting mechanism includes an insertion rod and a rotating sleeve, and the sides of the sliding plate are rotatably connected. The rotating sleeve passes through the opening of the T-shaped slot. A radial hole is provided on the rotating sleeve. The flipping rod can slide through the radial hole. The length of the flipping rod A limit groove is provided in the direction, and the inner wall surfaces of both sides of the limit groove are provided with a plurality of arc-shaped recesses distributed side by side. The arc-shaped recesses on both sides are concentrically arranged in one-to-one correspondence. The rotating sleeve is set on the On the insertion rod, the insertion rod passes through the limiting groove, and the insertion rod is perpendicular to the flipping rod; the insertion rod is a stepped shaft structure, including a large diameter end and a small diameter end, and the large diameter end is connected to the small diameter end. The arc-shaped recesses on both sides are adapted, and the diameter of the small-diameter end is less than or equal to the width of the limiting groove. When the large-diameter end cooperates with the arc-shaped recesses on both sides, the turning lever is locked. Sliding length; when the large-diameter end slides outward and away from the arc-shaped recess, the small-diameter end is located between the arc-shaped recesses on both sides, unlocking the sliding of the flip lever.

Further, the connection mechanism also includes a fixed sleeve and an angle locking ring. The angle locking ring is rotatably sleeved on the rotating sleeve and circumferentially constrained with the rotating sleeve. The angle locking ring The fixed sleeve is fixedly connected to the latch, and the fixed sleeve is provided with a pin hole for the insertion of the latch. The fixed sleeve is set on the rotating sleeve. The fixed sleeve is fixedly connected to the sliding plate. The rotating sleeve is rotatably connected. The fixed sleeve.

Further, the connection mechanism also includes a limiting block, an extension rod and a connecting rod. A sliding cavity is provided in the sliding plate. The limiting block is slidably located in the sliding cavity. The side of the sliding plate is connected to the sliding cavity. The through hole of the sliding cavity, the extension rod passes through the through hole, one end of the extension rod is fixedly connected to the small diameter end, the other end of the extension rod is rotatably connected to the connecting rod, and the connecting rod is rotatably connected to the limiting block ; A first convex part is provided inside the T-shaped groove, and one end of the limiting block passes through the sliding plate and is provided with a second convex part that matches the first convex part; when the large diameter end and both When the arc-shaped concave portion on the side of the sliding plate cooperates, the first and second convex portions cooperate to lock the height of the slide plate; when the large-diameter end slides outward and escapes from the arc-shaped concave portion, the connecting rod Deflect to drive the limiting block to slide, causing the first and second protrusions to separate, thereby unlocking the up and down sliding of the slide plate.

Further, there are two limit blocks, the sliding cavity is a hollow structure, and the opposite ends of the two limit blocks are rotatably connected to the ends of the connecting rods. The two connecting rods are The opposite end is rotatably connected to the extension rod.

Furthermore, there is a damping fit between the large diameter end and the rotating sleeve.

Further, the tops of the two flipping rods are fixedly connected to a two-axis bracket, and the two-axis bracket is rotatably connected to the flat-panel detector on two axes; the two-axis bracket includes an arc-shaped outer plate, an arc-shaped inner plate, a rotating shaft and Installation frame, the arc-shaped outer plate and the arc-shaped inner plate are coaxially arranged, the center axes of the two circles are parallel to the flip rod, the inner side of the arc-shaped outer plate is rotatably connected to the arc-shaped inner plate, The axis of rotation is the central axis of the two circles. The inner sides of the two ends of the arc-shaped inner plate are rotatably connected to the two ends of the rotating shaft. The rotating shaft is located in the radial direction of the arc-shaped inner plate. The rotating shaft is fixedly connected. The installation frame, the flat panel detector is installed on the installation frame.

Further, an extension part is provided on the inner side of the arc-shaped outer plate, and an arc-shaped cavity is provided in the extension part. The arc-shaped inner plate can rotatably pass through the arc-shaped cavity, and the arc-shaped inner plate has a circumference around it. A plurality of positioning teeth are distributed upward, and locking screws that are adapted to and corresponding to the positioning teeth are provided on the extension portion. The locking screws are used to cooperate with the positioning teeth to constrain the arc. When the inner plate rotates, nuts are connected at both ends of the rotating shaft to constrain the rotation of the rotating shaft.

Further, the lifting bracket includes a lifting platform and a telescopic rod. The lifting platform is located between the two upright columns and is connected to a lifting driving device. The lifting platform is fixedly connected to one end of the telescopic rod. The telescopic rod The other end of the rod is connected to the DR machine head through a ball joint. The connection line between the two upright columns is perpendicular to the telescopic rod, and the telescopic rod extends out of the mobile base.

The present invention has the following beneficial effects: Compared with the existing technology, the present invention integrates the flat-panel detector on the mobile DR equipment, which can facilitate X-ray detection of patients, eliminating the need for equipment such as a chest X-ray frame, and adjusting its flipping through a flipping lever. The angle and extension length allow the flat-panel detector to be placed at various angles. With the universal adjustment of the DR head and the height adjustment of the skateboard, it can be adapted to various detection parts and postures of the patient, making the detection more versatile.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention;

Figure 2 is a schematic diagram of the flipping rod after flipping. (B1) in the figure is a schematic diagram of the flipping rod when it is tilted, and (B2) is a schematic diagram of the flat-panel detector when it is vertical;

Figure 3 is a top view schematic diagram. (C1) is a top view schematic diagram of the two-axis bracket, and (C2) is a schematic diagram when the two-axis bracket is omitted;

Figure 4 is a schematic top view of the connecting mechanism. In the figure (D1) is a schematic diagram when the large diameter end is mated with the arc-shaped recess, and (D2) is a schematic diagram when the large diameter end is separated from the arc-shaped recess;

Figure 5 is a partial enlarged schematic diagram. (A1) in the figure is an enlarged schematic diagram of point A in Figure 1, and (A2) is a sectional schematic diagram of (A1);

In the picture: 1. Mobile base, 2. Column, 3. Slide plate, 4. Flip rod, 5. Connection mechanism, 6. Two-axis bracket, 7. Flat-panel detector, 8. Telescopic rod, 9. Ball joint, 10 , DR machine head, 11. Control cabinet, 12. Terminal, 13. Lifting table;

201. First convex part, 401. Limiting groove, 402. Arc concave part, 501. Insert rod, 5011. Large diameter end, 5012. Small diameter end, 502. Rotating sleeve, 503. Fixed sleeve, 504. Angle locking ring , 505. Latch, 506. Limiting boss, 507. Extension rod, 508. Connecting rod, 509. Limiting block, 601. Support plate, 602. Arc-shaped outer plate, 603. Extension part, 604. Locking Screws, 605, arc-shaped inner plate, 606, positioning tooth, 607, mounting frame, 608, rotating shaft, 609, nut.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to Figures 1 to 5 in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all implementations. For example, unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.

As shown in Figure 1, a medical imaging equipment based on mobile DR includes a mobile base 1, a column 2, a sliding plate 3, a flip rod 4 and a lifting bracket; two of the columns 2 are fixedly connected to the mobile base 1, and the two columns 2 are fixedly connected to the mobile base 1. The lifting bracket is installed between the uprights 2, and one end of the lifting bracket extends out of the mobile base 1 and is universally connected to the DR head 10; the opposite sides of the two uprights 2 are connected to each other by sliding up and down. The two sliding plates 3 are rotatably and slidably connected to the flipping rods 4 through connecting mechanisms 5. The tops of the two flipping rods 4 are connected to the flat-panel detector 7, and the DR head 10 is located on both sides. between the flipping rods 4; the connecting mechanism 5 is used to lock the flipping angle and sliding length of the flipping rod 4, and can lock the height of the sliding plate 3, so that the flat-panel detector 7 and the DR head 10 Detection intervals with different tilt angles are formed between them, which are used to detect different postures and parts of the patient.

The DR head 10 and the flat-panel detector 7 are existing technologies. The DR head 10 and the flat-panel detector 7 are used together to achieve direct digital photography and on-site imaging of various parts in various environments. The column 2 is arranged vertically, and the function of the lifting bracket is to adjust the height of the DR machine head 10 up and down. The flipping rod 4 is parallel to the upright column 2. Figure 1 shows the initial state of the entire equipment. At this time, the flipping rod 4 is set vertically flush with the upright column 2. The rotation axis of the flipping rod 4 is located on the plane where the two upright columns 2 are located. The flipping rod 4 When sliding, the distance between the flat panel detector 7 and the sliding plate 3 can be adjusted. As shown in B1 in Figure 2, the flipping rod 4 can be set at an angle, and the extension length of the flipping rod 4 can be adjusted so that the flat-panel detector 7 is located at the output end of the DR head 10 and faces upward. The flat-panel detector 7 and the DR head 10 Both have adaptive tilt settings, and the gap formed between the two can be used by patients to stand and put them into their legs to detect thighs, calves, knees and other parts. As for B2 in Figure 2, the flat-panel detector 7 is set vertically and the output end of the DR handpiece 10 is facing the horizontal direction. At this time, it can be used to detect the patient's chest. The patient needs to stand between the DR head 10 and the flat-panel detector 7. between. As shown in the initial state in Figure 1, at this time, it can be detected that the user is lying on the photography flat bed, and the flat-panel detector 7 is removed and placed on the photography flat bed. Compared with the existing technology, the present invention integrates the flat-panel detector 7 on the mobile DR equipment, which can facilitate X-ray detection of the patient and eliminates the need for equipment such as a chest X-ray frame. Its flip angle and extension length are adjusted through the flip rod 4. The flat-panel detector 7 can be placed at various angles, and with the universal adjustment of the DR head 10 and the height adjustment of the slide plate 3, it can be adapted to various detection parts and postures of the patient, making the detection more versatile.

In addition, the mobile base 1 is preferably a hand-push mobile platform. The mobile base 1 is also provided with a control cabinet 11 and a terminal 12. The control cabinet 11 integrates various electronic modules that connect the flat-panel detector 7 and the DR head 10. The terminal 12 can It is a computer, the terminal 12 and the control cabinet 11 are all existing technologies.

As shown in Figure 4, T-shaped slots are respectively provided on the opposite sides of the two upright columns 2, and the sliding plate 3 is slidably located in the T-shaped slot; the connecting mechanism 5 includes an insertion rod 501 and a rotating sleeve 502. The side of the sliding plate 3 is rotatably connected to the rotating sleeve 502. The rotating sleeve 502 passes through the opening of the T-shaped slot. A radial hole is provided on the rotating sleeve 502. The flip rod 4 can slide through the opening of the T-shaped slot. The radial hole is provided with a limiting groove 401 in the length direction of the flip rod 4. The inner walls of both sides of the limiting groove 401 are provided with a plurality of arc-shaped recesses 402 distributed side by side. The arc-shaped recesses 402 on both sides are 402 are arranged concentrically in one-to-one correspondence, the rotating sleeve 502 is set on the insertion rod 501, the insertion rod 501 passes through the limiting groove 401, and the insertion rod 501 is perpendicular to the flip rod 4; The insertion rod 501 is a stepped shaft structure, including a large diameter end 5011 and a small diameter end 5012. The large diameter end 5011 is adapted to the arc-shaped recesses 402 on both sides, and the diameter of the small diameter end 5012 is less than or equal to the above. The width of the limiting groove 401 locks the sliding length of the flip rod 4 when the large diameter end 5011 cooperates with the arc-shaped recesses 402 on both sides; when the large diameter end 5011 slides outward and disengages from the When the arc-shaped concave portion 402 is opened, the small-diameter end 5012 is located between the arc-shaped concave portions 402 on both sides to unlock the sliding movement of the flip lever 4 .

Specifically, the width of the opening formed by the T-shaped groove on the side of the column 2 is smaller than the width of the sliding plate 3, thereby constraining the sliding plate 3 so that it can only slide up and down. The insertion rod 501 and the rotating sleeve 502 are coaxially arranged, and the axis of the two is Set horizontally and perpendicular to column 2. When the rotating sleeve 502 rotates, it drives the flipping rod 4 to rotate, and the flipping rod 4 can slide in the radial hole, thereby realizing the purpose of the flipping rod 4 being rotatable and slidable. A plurality of arc-shaped recesses 402 are evenly distributed on both sides of the inner wall surfaces of the limiting groove 401 along the length direction of the flip rod 4 and are equally spaced. When the large diameter end 5011 is inserted into the arc-shaped recesses 402 on both sides, it constrains the sliding direction of the flip rod 4 and locks its extended length. When the large-diameter end 5011 is pulled out so that the small-diameter end 5012 is located between the arc-shaped recesses 402 on both sides, the flipping rod 4 can slide freely along its length direction.

Further, the connection mechanism 5 also includes a fixed sleeve 503 and an angle locking ring 504. The angle locking ring 504 is rotatably sleeved on the rotating sleeve 502 and is circumferentially constrained with the rotating sleeve 502. , the angle locking ring 504 is fixedly connected with the latch 505, the fixed sleeve 503 is provided with a pin hole for the latch 505 to be inserted, the fixed sleeve 503 is set on the rotating sleeve 502, the fixed sleeve 503 The sliding plate 3 is fixedly connected, and the rotating sleeve 502 is rotatably connected to the fixed sleeve 503 .

The circumferential constraint between the angle locking ring 504 and the rotating sleeve 502 can be achieved by a slide key, or a limiting protrusion 506 can be provided on the circumferential surface of the rotating sleeve 502, and a corresponding slot can be provided on the inner side of the angle locking ring 504. Therefore, the angle locking ring 504 can only slide and cannot rotate relative to each other. Sliding the angle locking ring 504 so that the latch 505 is inserted into the pin hole, the angle locking ring 504 is connected to the fixed sleeve 503, and the rotating sleeve 502 is constrained by the fixed sleeve 503, so that the rotating sleeve 502 cannot rotate, thus locking the flip lever At an angle of 4, multiple pins 505 are provided on the circumferential direction of the angle locking ring 504, and multiple pin holes are provided, thereby realizing multi-level angle adjustment of the flip lever 4.

Further, the connecting mechanism 5 also includes a limiting block 509, an extension rod 507 and a connecting rod 508. A sliding cavity is provided in the sliding plate 3, and the limiting block 509 is slidably located in the sliding cavity. A through hole is provided on the side of the slide plate 3 to communicate with the sliding cavity, and the extension rod 507 passes through the through hole. One end of the extension rod 507 is fixedly connected to the small diameter end 5012, and the other end of the extension rod 507 is a rotatable connecting rod 508. The connecting rod 508 is rotatably connected to the limiting block 509 .

As shown in Figure 5, a first protrusion 201 is provided inside the T-shaped groove, one end of the limiting block 509 passes through the slide plate 3 and a second protrusion adapted to the first protrusion 201 is provided; when When the large-diameter end 5011 cooperates with the arc-shaped concave portions 402 on both sides, the first and second convex portions cooperate to lock the height of the sliding plate 3; when the large-diameter end 5011 slides outward and disengages. When the arc-shaped recess 402 is opened, the connecting rod 508 is deflected to drive the limiting block 509 to slide, causing the first and second protrusions to separate, thereby unlocking the up and down sliding of the slide plate 3 .

Specifically, there are two limit blocks 509, the sliding cavity is a hollow structure, and the opposite ends of the two limit blocks 509 are respectively rotatably connected to the ends of the connecting rod 508. The opposite end of the connecting rod 508 is rotatably connected to the extension rod 507 .

The extension rod 507 and the insertion rod 501 are arranged coaxially, and the two connecting rods 508 are arranged symmetrically. The rotation axes at both ends of the connecting rod 508 are in the vertical direction. The limit block 509 is adapted to the size of the sliding cavity. When the insertion rod 501 slides, That is, the extension rod 507 can be used to drive the two connecting rods 508 to deflect, thereby moving the limiting block 509 to disengage and engage the first and second protrusions. The first and second protrusions are preferably teeth, and may also be wavy protrusions, square protrusions and other structures to constrain the sliding plate 3 in the vertical direction.

In the present invention, the vertical locking of the slide plate 3 is achieved by the sliding of the insertion rod 501 in the connecting mechanism 5 and the deflection of the connecting rod 508; the multi-level angle adjustment of the flipping rod 4 is achieved by the angle locking ring in the connecting mechanism 5 504 is realized; the sliding and extension length adjustment of the flip rod 4 is realized by the sliding of the insertion rod 501 in the connecting mechanism 5 and the cooperation between the arc-shaped recess 402 and the large diameter end 5011. In the specific implementation, the connecting mechanisms 5 on both sides are arranged symmetrically, and two workers are required to operate the connecting mechanisms 5 on both sides at the same time, in order to prevent one-sided accidental contact.

Furthermore, the large-diameter end 5011 and the rotating sleeve 502 have a damping fit, which can be achieved by placing a rubber ring on the large-diameter end 5011. The purpose is to achieve a tight fit between the large-diameter end 5011 and the rotating sleeve 502.

As shown in Figure 3, the tops of the two flipping rods 4 are fixedly connected to a two-axis bracket 6, and the two-axis bracket 6 is rotatably connected to the flat-panel detector 7; the two-axis bracket 6 includes an arc-shaped outer plate 602, The arc-shaped inner plate 605, the rotating shaft 608 and the mounting frame 607. The arc-shaped outer plate 602 and the arc-shaped inner plate 605 are coaxially arranged, and their central axes are parallel to the flip rod 4. The arc-shaped outer plate The inner side of 602 is rotatably connected to the arc-shaped inner plate 605, and the rotation axis is the central axis of the two circles. The inner sides of both ends of the arc-shaped inner plate 605 are rotatably connected to the two ends of the rotating shaft 608. 608 is located in the radial direction of the arc-shaped inner plate 605, the rotating shaft 608 is fixedly connected to the installation frame 607, and the flat panel detector 7 is installed on the installation frame 607.

After the flipping rod 4 is flipped over and the extension length of the flipping rod 4 is adjusted, the two-axis rotation of the flat-panel detector 7 can be realized by rotating the arc-shaped inner plate 605 and the mounting frame 607, and the multi-axis rotation of the flat-panel detector 7 can be adjusted. This spatial angle cooperates with the universal adjustment of the DR head 10 to achieve the purpose of multi-angle detection. In the initial state of Figure 1, the top view is as shown in Figure 3. At this time, the axis of the rotating shaft 608 is set horizontally, the rotation axis of the arc-shaped inner plate 605 is set vertically, and the rotation axes of the two intersect perpendicularly.

In addition, after the flipping rod 4 is flipped, the openings of the arc-shaped inner plate 605 and the arc-shaped outer plate 602 both face the general direction of the DR head 10. The advantage of this design is to avoid the need for space between the DR head 10 and the flat-panel detector 7. Create interference and avoid occlusion.

Further, an extension portion 603 is provided inside the arc-shaped outer plate 602, an arc-shaped cavity is provided in the extension portion 603, and the arc-shaped inner plate 605 can rotate through the arc-shaped cavity. The inner plate 605 has a plurality of positioning tooth portions 606 distributed on its circumference. The extension portion 603 is provided with locking screws 604 that are adapted to and corresponding to the positioning tooth portions 606. The locking screws 604 are used to match all the positioning teeth. The positioning tooth portion 606 is used to constrain the rotation of the arc-shaped inner plate 605. Nuts 609 are connected to both ends of the rotating shaft 608 for constraining the rotation of the rotating shaft 608.

Specifically, the arc-shaped cavity is a hollow arc-shaped cavity, and the end of the locking screw 604 is tapered. By tightening the locking screw 604 so that its end is engaged in the tooth groove of the positioning tooth portion 606, it can be locked. Curved inner panel 605. The end of the rotating shaft 608 can rotatably pass through the end of the arc-shaped inner plate 605. Nuts 609 are provided on both the inner and outer ends of the arc-shaped inner plate 605. The nuts 609 are threadedly connected to the rotating shaft 608. Tighten the two nuts 609 to secure the shaft. The rotating shaft 608 is locked.

In addition, the arc-shaped outer plate 602 and the arc-shaped inner plate 605 are spaced apart, that is, the outer diameter of the arc-shaped inner plate 605 is smaller than the inner diameter of the arc-shaped outer plate 602, so that during the rotation of the arc-shaped inner plate 605, the flat plate The detector 7 is separated from the arc-shaped outer plate 602 as much as possible to further avoid interference between the flat-panel detector 7 and the DR head 10 . The two ends of the arc-shaped outer plate 602 are also fixedly connected with support plates 601 respectively, and the two support plates 601 are respectively fixedly connected with the top of the flip rod 4 .

As shown in C2 in Figure 1 and Figure 3, the lifting bracket includes a lifting platform 13 and a telescopic rod 8. The lifting platform 13 is located between the two upright columns 2 and is connected to a lifting driving device. The lifting platform 13 One end of the telescopic rod 8 is fixedly connected, and the other end of the telescopic rod 8 is connected to the DR head 10 through a ball joint 9. The connection line between the two uprights 2 is perpendicular to the telescopic rod 8. The telescopic rod 8 8 extends out of the mobile base 1.

The lifting drive device is an existing technology and can be a pneumatic cylinder, a hydraulic cylinder, etc. It is arranged on the mobile base 1 and is located below the lifting platform 13. Its output end is fixedly connected to the bottom of the lifting platform 13 for adjusting the height of the lifting platform 13. The telescopic rod 8 is an existing technology and can be manual, electric, hydraulic, etc. The ball hinge joint 9 is an existing technology and realizes the universal connection of the DR head 10 .

The above-described embodiments only describe the preferred modes of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, those of ordinary skill in the art can make various modifications to the technical solutions of the present invention. Deformations, modifications, modifications, and replacements shall all fall within the protection scope determined by the claims of the present invention.

Claims (7)

1. A medical imaging device based on mobile DR, characterized in that: comprises a movable base (1), an upright post (2), a sliding plate (3), a turning rod (4) and a lifting bracket;

the movable base (1) is fixedly connected with two upright posts (2), the lifting support is arranged between the two upright posts (2), and one end of the lifting support extending out of the movable base (1) is connected with a DR machine head (10) in a universal mode;

the two opposite sides of the upright posts (2) are respectively connected with the sliding plates (3) in a vertical sliding mode, the two sliding plates (3) are respectively connected with the turnover rods (4) in a rotatable and slidable mode through the connecting mechanisms (5), the tops of the two turnover rods (4) are connected with the flat panel detector (7), and the DR machine head (10) is located between the two turnover rods (4);

the connecting mechanism (5) is used for locking the overturning angle and the sliding length of the overturning rod (4) and locking the height of the sliding plate (3), so that detection intervals with different inclination angles are formed between the flat panel detector (7) and the DR machine head (10) and are used for detecting different postures and parts of a patient;

the tops of the two turnover rods (4) are fixedly connected with a biaxial support (6), and the biaxial support (6) is rotatably connected with a flat panel detector (7) through two shafts;

the two-axis bracket (6) comprises an arc-shaped outer plate (602), an arc-shaped inner plate (605), a rotating shaft (608) and a mounting frame (607), wherein the arc-shaped outer plate (602) and the arc-shaped inner plate (605) are coaxially arranged, the center axes of the arc-shaped outer plate and the arc-shaped inner plate are parallel to the overturning rod (4), the inner sides of the arc-shaped outer plate (602) are rotatably connected with the arc-shaped inner plate (605), the rotating axes are the center axes of the arc-shaped inner plate (605), the inner sides of the two ends of the arc-shaped inner plate (605) are rotatably connected with the two ends of the rotating shaft (608), the rotating shaft (608) is positioned in the radial direction of the arc-shaped inner plate (605), the mounting frame (607) is fixedly connected to the rotating shaft (608), and the flat panel detector (7) is mounted on the mounting frame (607);

the inside of arc planking (602) sets up extension (603), set up the arc chamber in extension (603), arc inner panel (605) rotationally pass the arc chamber, arc inner panel (605) are at its circumference upwards distribution a plurality of location tooth portions (606), set up on extension (603) with location tooth portion (606) adaptation and locking screw (604) that the position corresponds, locking screw (604) are used for the cooperation location tooth portion (606), thereby restraint the rotation of arc inner panel (605), pivot (608) both ends coupling nut (609) are used for the constraint the rotation of pivot (608).

2. The mobile DR-based medical imaging device of claim 1, wherein: t-shaped grooves are respectively formed in one side, opposite to each other, of the two upright posts (2), and the sliding plate (3) is slidably positioned in the T-shaped grooves;

the connecting mechanism (5) comprises a plug rod (501) and a rotating sleeve (502), the side faces of the sliding plate (3) are rotatably connected with the rotating sleeve (502), the rotating sleeve (502) penetrates out of an opening of the T-shaped groove, a radial hole is formed in the rotating sleeve (502), the overturning rod (4) slidably penetrates through the radial hole, a limiting groove (401) is formed in the length direction of the overturning rod (4), a plurality of arc-shaped concave portions (402) which are distributed side by side are formed in the inner wall surfaces of two sides of the limiting groove (401), the arc-shaped concave portions (402) on two sides are concentrically arranged in a one-to-one correspondence mode, the rotating sleeve (502) is sleeved on the plug rod (501), the plug rod (501) penetrates through the limiting groove (401), and the plug rod (501) is perpendicular to the overturning rod (4);

the inserting rod (501) is of a stepped shaft structure and comprises a large-diameter end (5011) and a small-diameter end (5012), the large-diameter end (5011) is matched with the arc-shaped concave parts (402) on two sides, the diameter of the small-diameter end (5012) is smaller than or equal to the width of the limiting groove (401), and when the large-diameter end (5011) is matched with the arc-shaped concave parts (402) on two sides, the sliding length of the overturning rod (4) is locked; when the large-diameter end (5011) slides outwards to be separated from the arc-shaped concave parts (402), the small-diameter end (5012) is positioned between the arc-shaped concave parts (402) on two sides, and the sliding of the turning rod (4) is unlocked.

3. The mobile DR-based medical imaging device of claim 2, wherein: coupling mechanism (5) still include fixed cover (503) and angle locking ring (504), angle locking ring (504) rotationally cover is established on rotating cover (502), and with rotate circumference constraint between cover (502), fixed connection bolt (505) on angle locking ring (504), fixed cover (503) set up and be used for bolt (505) male pinhole, fixed cover (503) cover is established rotate on cover (502), fixed cover (503) fixed connection slide (3), rotate rotatable connection of cover (502) fixed cover (503).

4. The mobile DR-based medical imaging device of claim 2, wherein: the connecting mechanism (5) further comprises a limiting block (509), an extension rod (507) and a connecting rod (508), wherein a sliding cavity is formed in the sliding plate (3), the limiting block (509) is slidably positioned in the sliding cavity, a through hole for communicating the sliding cavity is formed in the side face of the sliding plate (3), the extension rod (507) penetrates through the through hole, one end of the extension rod (507) is fixedly connected with the small-diameter end (5012), the other end of the extension rod is rotatably connected with the connecting rod (508), and the connecting rod (508) is rotatably connected with the limiting block (509);

a first convex part (201) is arranged on the inner side of the T-shaped groove, one end of the limiting block (509) penetrates out of the sliding plate (3) and a second convex part matched with the first convex part (201) is arranged; when the large-diameter end (5011) is matched with the arc-shaped concave parts (402) on two sides, the first convex part and the second convex part are matched, so that the height of the sliding plate (3) is locked; when the large-diameter end (5011) slides outwards to be separated from the arc-shaped concave part (402), the connecting rod (508) deflects to drive the limiting block (509) to slide, so that the first convex part and the second convex part are separated, and the sliding plate (3) is unlocked to slide up and down.

5. The mobile DR-based medical imaging device of claim 4, wherein: the two limiting blocks (509) are arranged, the sliding cavity is of a hollow structure, one ends of the two limiting blocks (509) opposite to each other are respectively and rotatably connected with the end parts of the connecting rods (508), and one ends of the two connecting rods (508) opposite to each other are rotatably connected with the extension rods (507).

6. The mobile DR-based medical imaging device of claim 2, wherein: damping fit is achieved between the large-diameter end (5011) and the rotating sleeve (502).

7. The mobile DR-based medical imaging device of claim 1, wherein: the lifting support comprises a lifting table (13) and a telescopic rod (8), wherein the lifting table (13) is positioned between the two upright posts (2) and is connected with a lifting driving device, the lifting table (13) is fixedly connected with one end of the telescopic rod (8), the other end of the telescopic rod (8) is connected with a DR machine head (10) through a spherical hinge joint, the connecting lines of the upright posts (2) are perpendicular to the telescopic rod (8), and the telescopic rod (8) extends out of the movable base (1).