CN112603369A

CN112603369A - Curved surface ultrasonic imaging device and method

Info

Publication number: CN112603369A
Application number: CN202011596276.2A
Authority: CN
Inventors: 陈建军; 孙冬冬
Original assignee: Wuxi Chison Medical Technologies Co Ltd
Current assignee: Wuxi Chison Medical Technologies Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-04-06

Abstract

The invention provides a curved surface ultrasonic imaging device, comprising: the first base is provided with an arc-shaped curved surface, and the arc-shaped curved surface is arranged according to the circumferential profile of the target to be detected; the first rail comprises a plurality of segmented rails, the segmented rails are hinged to the first base, and the segmented rails can rotate relative to the first base to adjust the curvature of the first rail, so that the curvature of the adjusted first rail is matched with the curvature of the circumferential profile of the target to be detected; the second base is connected with the first rail in a sliding mode and moves circumferentially relative to the target to be detected along the first rail; the second base is provided with a second rail, and the second rail extends along the radial direction of the first rail; and the probe moving mechanism is in sliding connection with the second track and radially moves relative to the target to be detected along the second track.

Description

Curved surface ultrasonic imaging device and method

Technical Field

The invention belongs to the technical field of ultrasonic equipment, and particularly relates to a curved surface ultrasonic imaging device and method.

Background

In recent years, with the improvement of living standard, the incidence of diseases related to carotid artery, thyroid gland and the like has been increasing year by year and the trend is toward the younger. Carotid atherosclerosis can cause carotid stenosis and even occlusion, resulting in a disturbance of blood supply to the brain. The thyroid disease has important significance in reducing and preventing the occurrence of cerebrovascular events if the thyroid disease can be diagnosed and treated early. The current noninvasive imaging methods for neck examination are mainly ultrasound, magnetic resonance angiography and CT angiography. The ultrasonic examination is simple and easy to implement, and real-time imaging is adopted, so that the ultrasonic examination method becomes a preferred examination method for related diseases such as carotid artery, thyroid gland and the like.

The method adopted in the industry at present mainly comprises manual scanning by doctors, and has high requirements on the doctors, high working strength of the doctors and poor repeatability. There are also some automatic neck image device, but current product can't adjust according to the neck camber of the different object of waiting to detect, and the laminating nature is poor, has certain influence to ultrasonic image quality.

Disclosure of Invention

The invention aims to provide a curved surface ultrasonic imaging device and a curved surface ultrasonic imaging method, which can automatically scan the parts of the neck, the abdomen and the like with curved surfaces with different curvatures, can adjust according to the curvatures of different detection parts of a to-be-detected opposite side, and can automatically scan.

In order to achieve the purpose, the invention provides the following technical scheme: the detection device comprises a first base, a second base and a detection device, wherein the first base is provided with an arc-shaped curved surface which is arranged according to the circumferential profile of a target to be detected;

the first rail comprises a plurality of segmented rails, the segmented rails are hinged to the first base, and the segmented rails can rotate relative to the first base to adjust the curvature of the first rail, so that the curvature of the adjusted first rail is matched with the curvature of the circumferential profile of the target to be detected;

the second base is connected with the first rail in a sliding mode and moves circumferentially relative to the target to be detected along the first rail; the second base is provided with a second rail, and the second rail extends along the radial direction of the first rail;

the probe moving mechanism is connected with the second track in a sliding mode and moves radially relative to the target to be detected along the second track, and the probe moving mechanism is used for enabling the probe to move radially relative to the target to be detected. In the embodiment, the curved surface ultrasonic imaging device has a simple structure and occupies a small space; the first rail is used as an arc-shaped guide rail, so that the problem of scanning of left and right transposition of the curved surface is solved. And the track curvature can be adjusted according to the curvature of the opposite side to be detected, and the parts of the neck, the abdomen and the like with curved surfaces with different curvatures can be automatically scanned.

In an embodiment, the first base comprises at least 2 segmented bases hinged to a detection station; the segmented base can rotate relative to the detection station, so that the curvature of the arc-shaped curved surface is matched with the curvature of the circumferential profile of the target to be detected.

In an embodiment, the first track comprises a first segmented track region; the first segmented track region comprises at least 3 segmented tracks; the segmented tracks are arranged at equal intervals with a first interval.

In an embodiment, the first track further comprises a second segmented track region; the second segmented track region comprises at least 2 segmented tracks; the segmented tracks are arranged at a second interval.

In one embodiment, the first pitch is smaller than the second pitch setting.

In an embodiment, the second base is provided with a circumferential moving mechanism by which the second base is caused to perform circumferential movement with respect to the first rail.

In one embodiment, the circumferential moving mechanism comprises a driving wheel shaft and a driving wheel; the driving wheel shaft is installed on the second base; the driving wheel shaft is connected with a driving wheel;

the driving wheel shaft is meshed and connected with a circumferential moving motor;

the number of the driving wheels is at least 2, and the driving wheels are positioned on two sides of the first track.

In an embodiment, the probe moving mechanism further comprises a moving end, the moving end is provided with a probe clamp for mounting the probe, and the moving end moves relative to the vertical direction of the second track.

In one embodiment, the probe moving mechanism further comprises:

the moving frame is connected with the second rail in a sliding mode;

the moving frame is provided with a screw rod perpendicular to the second rail;

at least one moving end penetrates through the screw rod, the moving end is a sliding table,

and the screw rod motor is arranged on the probe moving mechanism and drives the screw rod to rotate. The lead screw driven by the lead screw motor rotates to drive the sliding table to move, so that the stable scanning of the probe can be realized.

In one embodiment, a spring is arranged between the probe moving mechanism and the second base, one end of the spring is connected with the probe moving mechanism, and the other end of the spring is connected with the second base. The second rail is matched with the spring to provide real-time pressure in the scanning process, so that the pressure in the scanning process can be ensured to be proper, and the probe can not be too high when being tightly attached to the skin.

In a second aspect, an embodiment of the present invention provides a curved surface ultrasonic imaging method, including the following steps:

the probe is driven to move at one side of an object to be detected by a moving end of the probe moving mechanism, the probe transmits and receives ultrasonic signals, and ultrasonic images of at least 2 frames of one side of the object to be detected are obtained;

if the curvature of the circumferential profile of the object to be detected is larger than or smaller than the preset curvature range, rotating the segmented track of the first track to adjust the curvature of the first track, so that the adjusted curvature of the first track is matched with the curvature of the circumferential profile of the object to be detected;

the probe is driven to move from one side of the object to be detected to the other side of the object to be detected by the circumferential movement of the second base relative to the object to be detected along the first track;

the moving end of the probe moving mechanism drives the probe to move on the other side of the object to be detected, and the probe transmits and receives ultrasonic signals to obtain at least 2 frames of ultrasonic images on the other side of the object to be detected;

and obtaining an ultrasonic two-dimensional or three-dimensional image of the object to be detected according to at least 2 frames of ultrasonic images at one side of the object to be detected and at least 2 frames of ultrasonic images at the other side of the object to be detected. In the embodiment, the curved surface ultrasonic imaging method is simple; the problem of scanning of left and right transposition of the curved surface is solved; the track curvature can be adjusted according to the curvatures of different detection parts of a to-be-detected opposite side, parts of the neck, the abdomen and the like with curved surfaces with different curvatures can be automatically scanned, and the curved surface ultrasonic imaging method is high in repeatability.

Drawings

Fig. 1 is a schematic structural diagram of a curved-surface ultrasonic imaging device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a curved ultrasonic imaging device including an installation station according to an embodiment of the present invention.

Fig. 3 is a top view of a curved ultrasonic imaging device according to an embodiment of the invention.

Fig. 4 is a schematic structural diagram of a first rail of a curved-surface ultrasonic imaging device according to an embodiment of the invention.

Fig. 5 is a schematic structural diagram of a first base according to an embodiment of the invention.

FIG. 6 is a schematic structural diagram of different pitches of the segment tracks according to an embodiment of the present invention.

FIG. 7 is a side view of a curved ultrasound imaging device in accordance with an embodiment of the present invention.

Fig. 8 is a schematic diagram illustrating the position of the probe moving relative to the object to be detected in the embodiment of the present invention.

FIG. 9 is a schematic view of a probe mounting frame of the present invention.

Detailed Description

The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

For ease of understanding, as shown in fig. 8, the C direction is a circumferential direction of the neck or other curved surface, the R direction is a radial direction of the neck or other curved surface, and H is a vertical direction of the neck or other curved surface.

The invention generally relates to a curved surface ultrasonic imaging device, as shown in fig. 1 and 5, a first base 100 comprises a first rail 200 mounted on the first base 100, the first rail 200 comprises a plurality of segmented rails 210, through holes 220 are arranged on the segmented rails 210, a through hole shaft 230 is arranged on the first base 100, and the first base 100 is hinged with the through holes 220 on the first rail 200 through the through hole shaft 230.

The first base 100 has an arc-shaped curved surface 120, and the arc-shaped curved surface 120 is arranged according to a circumferential profile of an object to be detected. The segmented rail 210 can rotate relative to the first base 100 to adjust the curvature of the first rail 100, so that the curvature of the adjusted first rail 200 matches the curvature of the circumferential profile of the object to be detected. Specifically, the segmented rail 210 rotates with respect to the first base 100 through the through hole 220 and the through hole shaft 230. The second base 300 is slidably mounted on the first rail 200, and the second base 300 moves circumferentially along the first rail 200 relative to the object to be detected; the second base 300 is provided with a second rail 400, and the second rail 400 is extended along the radial direction of the first rail 200; the probe moving mechanism 800 is slidably connected with the second track 400, and the probe moving mechanism 800 radially moves relative to the target to be detected along the second track 400, so that the probe can radially move relative to the target to be detected. The probe moving mechanism 800 is provided with a moving end to which the probe 600 is connected. Because the first track 200 is an arc-shaped guide rail, the problem of scanning the curved surface of the detection object by changing positions left and right and back and front and back is solved, track curvature adjustment can be performed according to different curvatures, and parts such as the neck, the abdomen and the like with curved surfaces with different curvatures can be automatically scanned and automatically scanned.

In one embodiment, as shown in fig. 5 and 8, the first base 100 includes at least 2 segmented bases 110 and hinge holes 130, and the segmented bases 110 are hinged to the detection station 150 through the hinge holes 130; each segmented base 110 is rotatable relative to the inspection station 150 such that the curvature of the curved arcuate surface 120 matches the curvature of the circumferential profile of the object to be inspected. The first base 100 includes a flexible layer 140 to facilitate greater comfort when an object to be detected is in close proximity to the first base 100.

In one embodiment, as shown in fig. 4 and 6, the first track 200 includes a first segmented track region 250, a second segmented track region 260; the first segmented track area 250 includes at least 3 segmented tracks 210; the sectional rails 210 are equally spaced apart from each other at the first spacing 240, so that the second base 300 can be more smoothly slid on the first rail 200 as the number of the sectional rails 210 increases. The second segmented track area 260 includes at least 2 segmented tracks; the two segmented tracks are arranged at a second pitch 270; the first pitch 240 is smaller than the second pitch 270. The second sectional track area 260 is in the middle area of the first track 200, and the first sectional track area 250 is near both end areas of the first track 200. The second pitch 270 is greater than the first pitch 240, which facilitates adjusting the curvature of the second segmented track region 260 such that the range of curvature variation of the first track 200 is increased.

In one embodiment, as shown in fig. 1, 2 and 8, the second base 300 is slidably mounted on the first rail 200 by a first slider, and the first slider is disposed at the bottom of the second base 300.

In an embodiment, as shown in fig. 9, the first track 200 is a single-curvature arc shape that fits the circumferential contour curved surface of the object to be detected, and the first track 200 is made of an elastic memory material and can change curvature through elastic deformation. The first base 100 is located below the first rail 200, and the curvature of the curved surface 120 of the first base 100 is close to that of the first rail 200.

In one embodiment, as shown in fig. 1 and 9, the second base 300 is L-shaped, and the second rail 400 is horizontally installed on a side plate of the second base 300. The probe moving mechanism 800 is slidably disposed on the second rail 400 via a second slider. Probe moving mechanism 800 is connected with the second slider including removing frame 810, removes frame 810, and through the vertical rotation installation lead screw 830 of bearing in removing frame 810, it is equipped with slip table 820 to slide in removing frame 810, and slip table 820 is for removing the end, and the periphery of lead screw 830 is located to slip table 820 thread bush, and lead screw 830 is driven by the lead screw motor. The screw motor drives the screw rod 830 to rotate, the screw rod 830 drives the sliding table 820 to move on the screw rod 830 in a direction parallel to the curved surface of the object to be detected when rotating, when the part to be detected of the object to be detected is in an upright state, the sliding table 820 approximately moves in a vertical direction, and when the part to be detected of the object to be detected is in a horizontal state, the sliding table 820 approximately moves in a horizontal direction.

In one embodiment, the probe moving mechanism 800 is a moving cylinder, the cylinder body of the moving cylinder is connected with the second slide block, the piston end of the moving cylinder is vertically upward, and the probe 600 is installed. When the second sliding block is not adopted, the sliding groove matched with the second track 400 is only needed to be arranged on the moving frame 810 or the moving cylinder body.

In one embodiment, as shown in FIG. 9, in order to allow the probe 600 to be adaptively adjusted within a certain angular range during scanning, the probe 600 is ensured to be well fitted to the carotid artery during scanning. The probe holder 500 is attached to the stage 820 of the probe moving mechanism 800, and the probe 600 is attached through the probe holder 500. The probe clamp 500 includes a probe mounting frame 510, and the probe mounting frame 510 is pivotally connected to the probe 600 by a pin. The probe mounting frame 510 is a rectangular hollow structure, and the middle cavity is a probe mounting cavity. The probe mounting frame 510 provides a hinge pivot for the probe 600 and limits the probe's amplitude of oscillation. The periphery of probe 600 is equipped with probe protective sheath 610, and probe protective sheath 610 upper portion centre is articulated with probe installation frame 510. The probe protection sleeve 610 is made of elastic materials, not only can prevent collision, but also can play a role in water prevention. The probe sheath 610 is sized slightly smaller than the probe mounting frame 510. Further, the lower part of the probe sheath 610 is hinged to the probe mounting frame 510.

In one embodiment, as shown in FIG. 3, in order to ensure that the probe 600 is not pressed too much while the probe 600 is in close contact with the skin during the scanning of the object to be detected. A spring 700 is provided between the probe moving mechanism 800 and the second base 300, and one end of the spring 700 is connected to the fixed end of the probe moving mechanism 800 and the other end is connected to the second base 300. The spring 700 may be a compression spring or an extension spring, and when the spring 700 is an extension spring, the spring 700 is located inside the probe moving mechanism 800, i.e., on a side close to the object to be detected. When the spring 700 is a compression spring, the spring 700 is located outside the probe moving mechanism 800, i.e., on the side away from the object to be detected.

In one embodiment, when the probe moving mechanism 800 is slidably disposed on the second rail 400 by the second slider, a spring 700 is disposed between the second slider and the second base 300. One end of the spring 700 is connected to the second slider, and the other end is connected to the second base 300.

In one embodiment, as shown in fig. 9, in order to move the probe 600 in the left and right positions on the first rail 200, a handle 900 is installed at a side of the moving frame 810. The handle 900 may be shaped in any manner, such as U-shaped or T-shaped, depending on the user's preference.

In other embodiments, the handle 900 is mounted on the probe mounting frame 510.

In one embodiment, as shown in fig. 7, a circumferential moving mechanism 1000 is provided between the second base 300 and the first rail 200, so that the circumferential movement of the second base 300 in the first rail 200 is realized. The circumferential movement mechanism 1000 includes a guide wheel shaft 1010 and an active wheel shaft 1020, the guide wheel shaft 1010 is installed in the second base 300, the second base 300 is exposed at the bottom, and the guide wheel 1030 is installed to rotate horizontally. The driving wheel shaft 1020 is rotatably installed in the second base 300, and the bottom of the driving wheel shaft is exposed out of the second base 300 and horizontally and fixedly connected with the driving wheel 1040. The driving wheel axle 1020 is driven by a circumferential moving motor, and the circumferential moving motor is connected with the driving wheel axle 1020 by adopting a direct connection or gear structure. The guide wheel 1030 and the driving wheel 1040 are respectively located at both sides of the first track 200. The circumferential moving motor drives the driving wheel shaft 1020 to rotate, and the second base 300 moves along the first rail 200 by friction force, so that the position conversion of the probe 600 is realized.

In other embodiments, the circumferential moving mechanism 1000 includes a gear and a driving gear shaft, and the gear is disposed on the side of the first rail 200. The driving gear shaft is rotatably installed in the second base 300, and the bottom of the driving gear shaft is exposed out of the second base 300 and is horizontally and fixedly connected with the driving gear. The driving wheel shaft 1020 is driven by a circumferential moving motor, and the circumferential moving motor is connected with a driving gear by adopting a direct connection or a chain wheel structure. The driving gear is meshed with the transmission gear. The circumferential movement motor drives the driving gear to rotate, and the second base 300 is caused to perform circumferential movement along the first rail 200 through the gear transmission structure, so that the position of the probe 600 moves in the circumferential direction of the object to be detected.

In one embodiment, as shown in fig. 9, a support plate 1100 is disposed above the first rail 200 for supporting and fixing the object to be detected, so as to ensure that the position of the object to be detected is stable during the scanning process, which is convenient for scanning.

In one embodiment, the probe 600 is driven by the moving end of the probe moving mechanism 800 to move on one side of the object to be detected, the probe 600 transmits and receives ultrasonic signals, and at least 2 frames of ultrasonic images of one side of the object to be detected are obtained;

if the curvature of the circumferential profile of the object to be detected is larger than or smaller than the preset curvature range, rotating the segmented track 210 of the first track to adjust the curvature of the first track, so that the adjusted curvature of the first track is matched with the curvature of the circumferential profile of the object to be detected; the preset curvature range can be set according to the detection requirement of a doctor;

the second base 400 moves along the first track 200 in the circumferential direction relative to the object to be detected, so as to drive the probe 600 to move from one side of the object to be detected to the other side of the object to be detected;

the probe 600 is driven to move on the other side of the object to be detected by the moving end of the probe moving mechanism 800, the probe 600 transmits and receives ultrasonic signals, and at least 2 frames of ultrasonic images on the other side of the object to be detected are obtained;

The invention has been described above with a certain degree of particularity. It will be understood by those of ordinary skill in the art that the description of the embodiments is merely exemplary and that all changes that come within the true spirit and scope of the invention are desired to be protected. The scope of the invention is defined by the appended claims rather than by the foregoing description of the embodiments.

Claims

1. Curved surface ultrasonic imaging apparatus, characterized in that the apparatus comprises:

the detection device comprises a first base, a second base and a detection device, wherein the first base is provided with an arc-shaped curved surface which is arranged according to the circumferential profile of a target to be detected;

the first rail comprises a plurality of segmented rails, each segmented rail is hinged to the first base, and each segmented rail can rotate relative to the first base to adjust the curvature of the first rail, so that the curvature of the adjusted first rail is matched with the curvature of the circumferential profile of the target to be detected;

the second base is connected with the first rail in a sliding mode and moves along the first rail in the circumferential direction relative to the target to be detected; the second base is provided with a second rail, and the second rail extends along the radial direction of the first rail;

the probe moving mechanism is connected with the second track in a sliding mode and moves radially relative to the target to be detected along the second track and is used for moving the probe radially relative to the target to be detected.

2. The curved ultrasonic imaging apparatus of claim 1, wherein: the first base comprises at least 2 segmented bases, and each segmented base is hinged to the detection station; each segmented base can rotate relative to the detection station, so that the curvature of the arc-shaped curved surface is matched with the curvature of the circumferential profile of the target to be detected.

3. The curved ultrasonic imaging apparatus of claim 1, wherein: the first track comprises a first segmented track region; the first segmented track region comprises at least 3 segmented tracks; each of the segmented tracks is equally spaced apart from each other at a first spacing.

4. The curved ultrasonic imaging apparatus of claim 3, wherein: the first track further comprises a second segmented track region; the second segmented track region comprises at least 2 segmented tracks; each of the segmented tracks is arranged at a second pitch.

5. The curved ultrasonic imaging apparatus of claim 4, wherein: the first pitch is smaller than the second pitch setting.

6. The curved ultrasonic imaging apparatus of any one of claims 1 to 5, wherein: the second base is provided with a circumferential movement mechanism by which the second base is caused to perform circumferential movement relative to the first rail.

7. The curved ultrasonic imaging apparatus of claim 6, wherein: the circumferential moving mechanism comprises a driving wheel shaft and a driving wheel; the driving wheel shaft is arranged on the second base; the driving wheel shaft is connected with the driving wheel;

8. The curved ultrasonic imaging apparatus of any one of claims 1 to 5 or 7, wherein: the probe moving mechanism further comprises a moving end, the moving end is provided with a probe clamp used for mounting the probe, and the moving end moves relative to the vertical direction of the second track.

9. The curved ultrasonic imaging apparatus of claim 8, wherein: the probe moving mechanism further includes:

the moving frame is connected with the second rail in a sliding mode;

the moving frame is provided with a screw rod perpendicular to the second rail;

and the screw rod motor is arranged on the probe moving mechanism and drives the screw rod to rotate.

10. The curved ultrasonic imaging device of any one of claims 1-3 or 5 or 7 or 9, wherein: a spring is arranged between the probe moving mechanism and the second base, one end of the spring is connected with the probe moving mechanism, and the other end of the spring is connected with the second base.

11. A curved surface ultrasonic imaging method, characterized in that the method comprises the steps of:

and obtaining an ultrasonic two-dimensional or three-dimensional image of the object to be detected according to at least 2 frames of ultrasonic images at one side of the object to be detected and at least 2 frames of ultrasonic images at the other side of the object to be detected.