CN218515744U

CN218515744U - Photoacoustic imaging system driving device based on ultrasonic motor

Info

Publication number: CN218515744U
Application number: CN202221952458.3U
Authority: CN
Inventors: 石狄; 黄浪; 王文欢; 方博闻
Original assignee: Wuhu Chuanglian Aviation Equipment Industry Research Institute Co ltd
Current assignee: Wuhu Chuanglian Aviation Equipment Industry Research Institute Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-02-24
Anticipated expiration: 2032-07-27

Abstract

The utility model provides a photoacoustic imaging system drive arrangement based on ultrasonic motor, including placing basin, the imitative body of tungsten filament, ultrasonic transducer, optic fibre and fixed station, the top of fixed station has set firmly mount table and locating lever respectively, the right side of mount table has set firmly the board, the inboard joint of board has ultrasonic motor, ultrasonic motor's the drive is sufficient and the outside of ceramic strip, and ultrasonic motor replaces electromagnetic motor as drive arrangement, has eliminated the electromagnetic interference that electromagnetic motor caused for scanning probe can obtain comparatively pure photoacoustic signal when acquireing the signal, has improved the imaging quality greatly, has improved the signal-to-noise ratio and the resolution ratio of image, and has brought advantages such as high positioning accuracy, outage auto-lock that ultrasonic motor itself had for photoacoustic imaging system, and these advantages are very suitable for in medical imaging field, and the problem that electromagnetic condition is complicated in the operational environment that current equipment exists is solved in the design of this device.

Description

Photoacoustic imaging system driving device based on ultrasonic motor

Technical Field

The utility model relates to a medical imaging technical field, concretely relates to optoacoustic imaging system drive arrangement based on supersound motor.

Background

Photoacoustic imaging is a new nondestructive biomedical imaging technology, and the technology has been primarily applied to a plurality of biomedical fields such as brain function and disease imaging, cardiovascular research, tumor microenvironment research and the like.

The existing photoacoustic imaging system integrated with the ultrasonic linear array probe usually depends on a linear electromagnetic motor to carry the probe for scanning when acquiring target three-dimensional structure information, when the electromagnetic motor drives the probe for scanning, the probe cannot acquire clear signals due to electromagnetic interference to influence imaging, and the defects of electromagnetic interference, insufficient precision and the like exist, the system is difficult to acquire photoacoustic images with high signal-to-noise ratio and high scanning precision, and the medical imaging quality is finally influenced.

The utility model discloses an eliminate the electromagnetic interference among the optoacoustic imaging technique, improve formation of image signal to noise ratio and resolution ratio, provide an optoacoustic imaging system drive arrangement based on ultrasonic motor, this drive arrangement is in except utilizing ultrasonic motor precision drive, the non-electromagnetic interference characteristics in, compact structure, miniaturization, quick response, advantages such as outage auto-lock that it has are applicable to medical imaging system very much.

SUMMERY OF THE UTILITY MODEL

Technical problem solved by utility model

The utility model provides a photoacoustic imaging system drive arrangement based on ultrasonic motor has solved the problem that the electromagnetic condition is complicated in the operational environment that current device exists.

Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does: the utility model provides a photoacoustic imaging system drive arrangement based on supersound motor, is including placing basin, the imitative body of tungsten filament, ultrasonic transducer, optic fibre and fixed station, the top of fixed station has set firmly mount table and locating lever respectively, the left side of mount table has set firmly the slip table, the top rear side fixedly connected with ceramic strip of this slip table.

The right side of mount table has set firmly the board, the inboard joint of board has the supersound motor, the drive foot of supersound motor and the upper surface of ceramic strip.

Further, the outside of locating lever has cup jointed first regulation seat, and the equal threaded connection in front and back end of this first regulation seat has first alignment bolt, the horizontal pole has been cup jointed, two to the rear end inboard of first regulation seat the bottom of first alignment bolt is contradicted respectively in the outside of locating lever and horizontal pole, the seat is adjusted to the one end of horizontal pole has been cup jointed the second, the top and the equal threaded connection in bottom of seat have the second alignment bolt to be adjusted to the second, the bottom inboard of seat is adjusted to the second has cup jointed the round bar, and the front end of this round bar has cup jointed the limiting plate, the middle part threaded connection of limiting plate has the third alignment bolt, the rear end of this third alignment bolt and the inboard threaded connection in front end of round bar.

Furthermore, the inner side of the limiting plate is clamped with a clamping seat, the outer side of the clamping seat is abutted against the outer side of the second adjusting seat, and the inner side of the clamping seat is fixedly connected with the ultrasonic transducer and the optical fiber respectively.

Furthermore, the top front side of slip table sets firmly the bed hedgehopping piece, the top of this bed hedgehopping piece with place the bottom fixed connection of basin.

Further, the bottom of board has set firmly the backing plate, and the bottom of this backing plate is contradicted at the top of mount table.

Further, the left and right sides and the equal threaded connection in top of board have spacing bolt, the bottom of spacing bolt is contradicted in the outside of supersound motor, the middle part joint of board has the gasket.

Furthermore, the bottom of spacing bolt sets firmly soft buffer head, and the outside of this soft buffer head is contradicted in the outside of supersound motor.

Further, the spacer is made of sponge or paper, and the top surface of the spacer is abutted against the bottom surface of the ultrasonic motor.

Furthermore, the outer side surface of the stator of the ultrasonic motor is provided with a piezoelectric ceramic piece, and the driving feet at the two ends of the ultrasonic motor are cylindrical.

Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

the utility model provides a photoacoustic imaging system drive arrangement based on ultrasonic motor realizes ultrasonic transducer through the device, ultrasonic motor replaces electromagnetic motor as drive arrangement, the electromagnetic interference that electromagnetic motor caused has been eliminated, make scanning probe can obtain comparatively pure photoacoustic signal when acquireing the signal, the formation of image quality has been improved greatly, the signal-to-noise ratio and the resolution ratio of image have been improved, and brought the advantages such as high positioning accuracy, outage auto-lock that ultrasonic motor itself has among the photoacoustic imaging system, these advantages are very suitable for in medical imaging field;

the parts of the device not involved are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a front sectional view of the structure of the present invention;

fig. 2 is a perspective view of the structure of the ultrasonic motor of the present invention;

fig. 3 is a perspective view of the structure of the machine platform of the present invention;

FIG. 4 is a perspective view of the positioning rod structure of the present invention;

fig. 5 is a photoacoustic image obtained under the ultrasound motor-driven scanning of the present invention;

fig. 6 is a photoacoustic image acquired under the electromagnetic motor drive scanning of the present invention.

Reference numerals

1-placing a water tank; 2-tungsten filament imitation; 3-an ultrasonic transducer; 4-an optical fiber; 5-a fixed table; 6, mounting a table; 7-positioning the rod; 701-a first adjusting seat; 702-a first positioning peg; 703-a cross bar; 704-a second adjustment seat; 705-a second locating peg; 706-round bar; 707-a limiting plate; 708-a third positioning peg; 709-a holder; 8-a sliding table; 801-a padding block; 9-ceramic strips; 10-a machine platform; 1001-backing plate; 1002-a limit bolt; 1003-spacer; 11-ultrasonic motor.

Detailed Description

In order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but on the contrary are provided for the purpose of making the disclosure more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to the attached drawings 1-6, the utility model provides an optoacoustic imaging system drive arrangement based on supersound motor, including placing basin 1, the imitative body 2 of tungsten filament, ultrasonic transducer 3, optic fibre 4 and fixed station 5, the top of fixed station 5 has set firmly mount table 6 and locating lever 7 respectively, and the left side of mount table 6 has set firmly slip table 8, the top rear side fixedly connected with ceramic strip 9 of this slip table 8.

A machine table 10 is fixedly arranged on the right side of the mounting table 6, an ultrasonic motor 11 is clamped on the inner side of the machine table 10, and driving feet of the ultrasonic motor 11 are connected with the upper surface of the ceramic strip 9.

In this embodiment, as shown in fig. 1 and fig. 4, the outer side of the positioning rod 7 is sleeved with a first adjusting seat 701, the front and rear ends of the first adjusting seat 701 are all connected with a first positioning bolt 702 through a screw thread, the inner side of the rear end of the first adjusting seat 701 is sleeved with a cross rod 703, the bottom ends of the two first positioning bolts 702 respectively abut against the outer sides of the positioning rod 7 and the cross rod 703, one end of the cross rod 703 is sleeved with a second adjusting seat 704, the top end and the bottom end of the second adjusting seat 704 are all connected with a second positioning bolt 705 through a screw thread, the inner side of the bottom end of the second adjusting seat 704 is sleeved with a round rod 706, the front end of the round rod 706 is sleeved with a limiting plate 707, the middle part of the limiting plate 707 is connected with a third positioning bolt 708 through a screw thread, and the rear end of the third positioning bolt 708 is connected with the inner side of the front end of the round rod 706 through a screw thread.

The working positions of the first adjusting seat 701 on the positioning rod 7 and the working position of the cross rod 703 on the first adjusting seat 701 are changed respectively through the two first positioning bolts 702, the working position adjustment of the second adjusting seat 704 on the cross rod 703 and the working position adjustment of the round rod 706 on the second adjusting seat 704 are completed through the second positioning bolt 705, the working position adjustment of the limiting plate 707 on the round rod 706 is changed through the third positioning bolt 708, the quick assembly of the clamp base 709 is realized, the whole structure is simple, reasonable and convenient to operate and use.

In this embodiment, as shown in fig. 1, the inner side of the limiting plate 707 is clamped with a holder 709, an outer side of the holder 709 abuts against an outer side of the second adjusting seat 704, and an inner side of the holder 709 is fixedly connected to the ultrasound transducer 3 and the optical fiber 4, respectively.

The holder 709 provides mounting support for the ultrasonic transducer 3 and the optical fiber 4, and the tungsten filament imitation 2 placed in the water tank 1 is detected.

In this embodiment, as shown in fig. 1, a padding block 801 is fixedly disposed on the front side of the top end of the sliding table 8, and the top end of the padding block 801 is fixedly connected to the bottom end of the water tank 1.

The cooperation of bed hedgehopping piece 801 and slip table 8 reduces and places and appear interfering between basin 1 and the supersound motor 11, and convenience of customers adjusts equipment fixing space on mount table 6.

In this embodiment, as shown in fig. 1 and 3, a pad 1001 is fixedly disposed at the bottom end of the machine station 10, and the bottom of the pad 1001 abuts against the top of the installation station 6.

The machine 10 is matched with the backing plate 1001 to finish coarse adjustment of the installation position of the ultrasonic motor 11.

In this embodiment, as shown in fig. 1 and fig. 3, the left side, the right side, and the top of the machine table 10 are both connected with a limiting bolt 1002 through threads, the bottom end of the limiting bolt 1002 abuts against the outer side of the ultrasonic motor 11, and a gasket 1003 is clamped in the middle of the machine table 10.

The machine table 10 is matched with the limit bolt 1002 to complete the rapid locking of the ultrasonic motor 11 on the machine table 10, wherein the limit bolt 1002 at the top of the machine table 10 completes the locking and vertical pre-pressure adjustment of the ultrasonic motor 11.

In this embodiment, as shown in fig. 1 and fig. 3, a soft buffer head is fixedly disposed at the bottom end of the limiting bolt 1002, and the outer side of the soft buffer head abuts against the outer side of the ultrasonic motor 11.

The limit bolts 1002 on the left and right sides of the machine table 10 complete the locking and the transverse pre-pressure adjustment of the ultrasonic motor 11, and the vibration generated by the work of the ultrasonic motor 11 is reduced to be transmitted to the machine table 10 through the use of the soft buffer head.

In this embodiment, as shown in fig. 1 and 3, the spacer 1003 is made of sponge or paper, and the top surface of the spacer 1003 abuts against the bottom surface of the ultrasonic motor 11.

Through the cooperation of gasket 1003 and board 10, reduce the work vibrations of supersound motor 11 and transmit to board 10 on.

In this embodiment, as shown in fig. 1 and fig. 2, a piezoelectric ceramic plate is disposed on an outer side surface of a stator of the ultrasonic motor 11, and driving feet at two ends of the ultrasonic motor 11 are cylindrical.

The specific operation flow is as follows:

the driving foot on one side of the ultrasonic motor 11 is in contact with the fixed ceramic strip 9, the ultrasonic motor 11 is fixed by the machine table 10, the pre-pressure can be adjusted by matching with the limiting bolt 1002 and the gasket 1003, the water tank is heightened by the heightening block 801 on the sliding table 8, and the ultrasonic motor 11 drives the sliding table 8 to reciprocate through the ceramic strip 9 to adjust the position of the scanned object.

The optical fiber 4 and the ultrasonic transducer 3 are connected together through the clamping seat 709 to form the photoacoustic probe, laser irradiates the tungsten filament imitation body 2 placed in the water tank 1 through the transmission of the optical fiber 4, and therefore photoacoustic signals are generated, and the photoacoustic signals are acquired by the ultrasonic transducer 3.

Because the ultrasonic motor 11 is used as a driving device to replace an electromagnetic motor, the electromagnetic interference caused by the electromagnetic motor is eliminated, so that a scanning probe can obtain a relatively pure photoacoustic signal when acquiring the signal, the imaging quality is greatly improved, and the signal-to-noise ratio and the resolution of the image are improved.

The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention; therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a photoacoustic imaging system drive arrangement based on supersound motor, is including placing basin (1), imitative body of tungsten filament (2), ultrasonic transducer (3), optic fibre (4) and fixed station (5), its characterized in that: the top of the fixed table (5) is fixedly provided with an installation table (6) and a positioning rod (7) respectively, the left side of the installation table (6) is fixedly provided with a sliding table (8), and the rear side of the top end of the sliding table (8) is fixedly connected with a ceramic strip (9);

a machine table (10) is fixedly arranged on the right side of the mounting table (6), an ultrasonic motor (11) is clamped on the inner side of the machine table (10), and driving feet of the ultrasonic motor (11) are connected with the upper surface of the ceramic strip (9).

2. The driving apparatus of photoacoustic imaging system based on ultrasonic motor according to claim 1, wherein: the outside of locating lever (7) has cup jointed first regulation seat (701), and the equal threaded connection in front and back end of this first regulation seat (701) has first locating bolt (702), horizontal pole (703) have been cup jointed to the rear end inboard of first regulation seat (701), two the bottom of first locating bolt (702) is contradicted respectively in the outside of locating lever (7) and horizontal pole (703), the one end of horizontal pole (703) has cup jointed second regulation seat (704), the top and the equal threaded connection in bottom of second regulation seat (704) have second locating bolt (705), the bottom inboard of second regulation seat (704) has cup jointed round bar (706), and the front end of this round bar (706) has cup jointed limiting plate (707), the middle part threaded connection of limiting plate (707) has third locating bolt (708), and the inboard threaded connection in front end of this third locating bolt (708) and round bar (706).

3. The driving apparatus of photoacoustic imaging system based on ultrasonic motor according to claim 2, characterized in that: the inner side of the limiting plate (707) is clamped with a clamping seat (709), the outer side of the clamping seat (709) is abutted against the outer side of the second adjusting seat (704), and the inner side of the clamping seat (709) is fixedly connected with the ultrasonic transducer (3) and the optical fiber (4) respectively.

4. The driving apparatus of photoacoustic imaging system based on ultrasonic motor according to claim 1, wherein: the front side of the top end of the sliding table (8) is fixedly provided with a padding block (801), and the top end of the padding block (801) is fixedly connected with the bottom end of the water tank (1).

5. The driving apparatus of photoacoustic imaging system based on ultrasonic motor according to claim 1, characterized in that: the bottom of board (10) sets firmly backing plate (1001), and the bottom of this backing plate (1001) is contradicted at the top of mount table (6).

6. The driving apparatus of photoacoustic imaging system based on ultrasonic motor according to claim 1, characterized in that: the left and right sides and the equal threaded connection in top of board (10) have stop bolt (1002), the bottom of stop bolt (1002) is contradicted in the outside of supersound motor (11), the middle part joint of board (10) has gasket (1003).

7. The driving apparatus of photoacoustic imaging system based on ultrasonic motor according to claim 6, characterized in that: the bottom of spacing bolt (1002) sets firmly soft buffer head, and this soft buffer head's the outside is contradicted in the outside of supersound motor (11).

8. The driving apparatus of photoacoustic imaging system based on ultrasonic motor according to claim 6, characterized in that: the gasket (1003) is made of sponge or paper, and the top surface of the gasket (1003) is abutted against the bottom surface of the ultrasonic motor (11).

9. The driving apparatus of photoacoustic imaging system based on ultrasonic motor according to claim 1, wherein: the outer side surface of the stator of the ultrasonic motor (11) is provided with a piezoelectric ceramic piece, and the driving feet at the two ends of the ultrasonic motor (11) are cylindrical.