KR20170007674A - Microwave Scanning Apparatus of the Microwave Tomography System - Google Patents

Microwave Scanning Apparatus of the Microwave Tomography System Download PDF

Info

Publication number
KR20170007674A
KR20170007674A KR1020150098700A KR20150098700A KR20170007674A KR 20170007674 A KR20170007674 A KR 20170007674A KR 1020150098700 A KR1020150098700 A KR 1020150098700A KR 20150098700 A KR20150098700 A KR 20150098700A KR 20170007674 A KR20170007674 A KR 20170007674A
Authority
KR
South Korea
Prior art keywords
plate
microwave
water tank
array antenna
microwave scanning
Prior art date
Application number
KR1020150098700A
Other languages
Korean (ko)
Inventor
손성호
김장렬
김혁제
이광재
이종문
전순익
최형도
Original Assignee
한국전자통신연구원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국전자통신연구원 filed Critical 한국전자통신연구원
Priority to KR1020150098700A priority Critical patent/KR20170007674A/en
Publication of KR20170007674A publication Critical patent/KR20170007674A/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/0507—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  using microwaves or terahertz waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/502—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of breast, i.e. mammography

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Optics & Photonics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

A microwave scanning apparatus of a microwave tomograph according to an exemplary embodiment of the present invention includes a water tank filled with a matching solution, the microwave scanning apparatus comprising: an array antenna for transmitting and receiving microwaves in the water tank; A rotation driving unit for rotating the water tub; And an up and down driving unit for moving the array antenna up and down.

Description

TECHNICAL FIELD [0001] The present invention relates to a microwave scanning apparatus for microwave tomography,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a microwave scanning apparatus for a microwave tomograph, and more particularly, to a technique for moving an antenna in a water tank up and down or in a rotating direction.

 The most commonly used method of early diagnosis of cancer is to detect heterogeneous tissue through mechanical testing. Despite the advantages of relatively simple testing, such as mechanical examination, the diagnostic success rate is extremely low, And is performed in parallel with the secondary diagnosis method. Therefore, a method for diagnosing cancer through more accurate mechanical examination is needed.

As a technique for accurately diagnosing cancer, an object (breast) is photographed using the propagation characteristic of a radio frequency (RF) electromagnetic signal having a frequency of 500 MHz to 3000 MHz, for example, as an electromagnetic wave, A technique has been proposed in which the user is aware of this.

More specifically, a conventional image output method in a conventional electromagnetic transverse section imaging generates a specific image reconstruction data value, which is a data value for outputting a video output data value through image processing by subjecting electromagnetic waves to signal processing and image reconstruction. Based on the generated specific image reconstruction data, the image is linearly output without change, and the user recognizes the image.

That is, in the conventional micrometer tomograph, a monopole antenna capable of transmitting and receiving a predetermined microwave is disposed in a circular shape in a water tank filled with a microwave matching solution, and the monopole antenna performs a three-dimensional microwave measurement on a subject breast present in a water tank .

However, the microwave scanning apparatus of the conventional microwave tomography apparatus can move up and down in the case of a monopole antenna, but it can not move up or down or rotate in the case of another type of antenna.

Patent Publication No. KR 2010-0072600

An embodiment of the present invention is to provide a microwave scanning apparatus capable of scanning not only vertical but also rotational directions of all antennas in a water tank environment.

It is also intended to provide a new microwave scanning device provided with a space for placing additional necessary accessories at the bottom of the water tank.

The technical problems of the present invention are not limited to the above-mentioned technical problems, and other technical problems which are not mentioned can be understood by those skilled in the art from the following description.

A microwave scanning apparatus of a microwave tomograph according to an exemplary embodiment of the present invention includes a water tank filled with a matching solution, the microwave scanning apparatus comprising: an array antenna for transmitting and receiving microwaves in the water tank; A rotation driving unit for rotating the water tub; And an up and down driving unit for moving the array antenna up and down.

The rotation drive unit includes: a first plate supporting the water tank; A first support rod spaced apart from the lower portion of the first plate and supporting the first plate; A rotary plate connected to the first support rod and rotated; And a rotation driver for rotating the rotation plate.

The first plate may be a donut-shaped circular plate.

An RF cable passage pipe through which an RF cable connected to the array antenna passes; A second support rod connected to the array antenna so as to be spaced apart from the RF cable passage tube by a predetermined distance; A second plate to which the RF cable channel and the second support bar are connected; A third support rod connected to the lower portion to support the second circular plate; A third plate connected to the third support bar; And an up-down driver for controlling up-down driving of the third plate.

In addition, the second plate may be a circular plate having a donut structure.

Also, the RF cable channel and the second support bar may be inserted into the second plate through a circumferential surface thereof.

The third plate may be a rectangular plate, and may be formed to be longer than the first plate and the second plate in the longitudinal direction.

And an RF transmitting and receiving unit connected to the RF cable of the RF cable channel and transmitting and receiving the microwave from the array antenna.

In addition, the RF transceiver may be disposed on both sides of the third plate.

The RF cable passage tube and the second support rod are provided so as to pass through the bottom surface of the water tank, and between the bottom surface of the water tank and the RF cable passage tube, and between the bottom surface of the water tank and the second support rod O-rings. ≪ / RTI >

The first support bar may be formed to pass through the third plate, and the slider may further include a portion where the first support bar and the third plate contact each other.

A subject table including an object insertion port into which an object of the subject can be inserted; And a cover capable of covering the object inserting port.

In addition, an air layer may be formed so as to exist between the subject table and the cover and the matching solution in the water tank.

In addition, the bottom surface of the subject table and the cover may be formed so as to be in contact with the matching solution in the water tank.

In this technique, an array antenna in a matching solution in a microwave mammography system enables three-dimensional microwave measurement in the up and down direction and the rotating direction of the subject's breast.

In addition, since the cables connected to the RF transceiver are not shaken, the present invention can secure the stability of the signal.

1 is a configuration diagram of a microwave scanning apparatus of a microwave tomograph according to an embodiment of the present invention.
2 is a structural cross-sectional view of a microwave scanning apparatus of a microwave tomograph according to an embodiment of the present invention.
3 is a perspective view of a part of a microwave scanning apparatus of a microwave tomograph according to an embodiment of the present invention.
4 is a configuration diagram of a microwave scanning apparatus according to another embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted in an ideal or overly formal sense unless explicitly defined in the present application Do not.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 4. FIG.

 1 is a configuration diagram of a microwave scanning apparatus of a microwave tomograph according to an embodiment of the present invention.

A microwave scanning apparatus of a microwave tomograph according to an embodiment of the present invention includes a water receiving unit 100 including an array antenna 110 for transmitting and receiving microwaves into a water tank 120 filled with a matching solution 140, A rotation driving unit 300, an up and down driving unit 400, and an RF transmitting and receiving unit 500 on which a subject (breast) is placed.

2 and 3, the structure of a microwave scanning apparatus of a microwave tomograph according to an embodiment of the present invention will be described in detail. FIG. 2 is a cross-sectional view of an entire configuration of a microwave scanning apparatus of a microwave tomograph according to an embodiment of the present invention, and FIG. 3 is a perspective view of a part of a microwave scanning apparatus of a microwave tomograph according to an embodiment of the present invention.

2, the receiver unit 100 includes an array antenna 110 for microwave transmission and reception, which is located inside a water tank 120 filled with the matching solution 140, a solution overflow prevention unit 130 for preventing overflow of the matching solution 140, (150). The array antenna 110 is a circular array antenna. When one of the plurality of antennas transmits a microwave, the remaining plurality of antennas simultaneously receive the microwave. 3, an example of a circular array antenna in which sixteen antennas are arranged in a circular shape is disclosed, but the present invention is not limited thereto and may be implemented by various types of array antennas. The solution overflow prevention part 150 is provided above both side walls of the water tank 120 to temporarily store the overflowed matching solution 140 when the solution 140 overflows.

Referring to FIG. 2, the subject table 200 supports a human body such that an object to be measured is inserted into an inlet of the water tub 120. A lid 210 for covering the inlet of the water tub 120 and a predetermined lid 210 coinciding with a surface under the table to be inspected may be provided at the breast insertion port of the inspected table 200. At this time, the lower surface of the subject table 200 and the lid 210 may be formed of a conductor or a microwave absorber.

2 and 3, the rotation drive unit 300 supports and rotates the water tub 120 and includes a first circular plate 310, a first support rod 320, a rotary plate 330, and a rotary actuator 340 do.

The first circular plate 310 supports the water tub 120 and is formed in the form of a donut having a hole and has a predetermined groove 315 on the inner surface of the hole to connect the RF cable passage pipe 410 and the second support rod 315 to the groove 315. [ (420) is inserted and passed through and fixed. A plurality of first support rods 320 are spaced apart from the first circular plate 310 by a predetermined distance to support the first circular plate 310. The rotation plate 330 is provided below the plurality of first support rods 320 and is rotated by the rotation driver 340.

2 and 3, the up and down driving unit 400 drives the array antenna 110 up and down and includes an RF cable passage pipe 410 as a passage of the RF cable 510 connected to the array antenna 110, A slider 470, a power transmission rod 480, and an up-and-down driver 490. The first and second support plates 460, 460, .

The RF cable passage pipe 410 is connected to the second circular plate 440 through the bottom portion of the water tank 120 with 16 pieces. An O-ring 430 is provided on both side walls of the bottom of the water tank 120 through which the RF cable passage pipe 410 is passed so that when the RF cable passage pipe 410 is vertically driven in the water tank 120, So that the matching solution does not leak into the clearance of the water tank 120. The second circular plate 440 is circular with a hole in the form of a donut and inserted into the peripheral surface of the donut that is not a hole so as to pass the RF cable passage pipe 410 and the second support rod 420. The rectangular plate 450 is formed to be wider than the width of the rotating plate 330 and the water tub 120. The first supporting bar 320 is disposed to pass through the rectangular plate 450, The slider 231 is provided so as to be able to move smoothly when the rectangular plate 450 is moved up and down for vertical driving. A plurality of third support rods 460 are connected between the second circular plate 440 and the rectangular plate 450. The power transmission bar 480 shown in FIG. 3 is connected between the upper and lower drivers 490 and the rectangular plate 430 to transmit power. The upper and lower driver 490 drives the rectangular plate 430 up and down.

The RF transmitting and receiving unit 500 is connected to the RF cable 510 to transmit and receive the microwave transmitted and received by the array antenna 110 and measure electromagnetic waves. At this time, the RF transmitting and receiving unit 500 is disposed on the upper side of the rectangular plate 450 and disposed on the outer sides of the first supporting bar 320 to prevent the RF cable 510 connected to the antenna 110 from shaking.

In the microwave scanning apparatus according to the present invention having the above-described structure, the array antenna 110 inside the water tub 120 can be moved up and down by the driving unit 400, The array antenna 110 can be moved up and down while the object is inserted into the water tank 120 when the human body is measured by the microwave or repeated measurement can be performed while the water tank 120 is rotated . In addition, a space can be provided in the lower part of the water tank for arranging additional necessary accessories, such as disposing the RF transceiver unit 500 on both sides of the rectangular plate 450 under the water tank 120.

4 is a configuration diagram of a microwave scanning apparatus of a microwave tomograph according to another embodiment of the present invention.

The microwave scanning apparatus according to another embodiment of the present invention is the same as the structure of the water tub 120 of FIG. 2 and the embodiment of the subject table 600 is different. That is, in the microwave scanning apparatus according to the embodiment of the present invention shown in FIG. 2, an air layer exists between the matching solution 140 in the water tank 120 and the subject table 200, In the scanning apparatus, the matching solution 140 in the water tank 120 is brought into contact with the subject table 600 and the cover 610, or the bottom surface of the subject table 600 and a part of the bottom surface of the cover 610 are matched with the matching solution 140, So that the air layer is removed.

As described above, the micrometer tomography system for breast cancer imaging according to the present invention generally includes a case where the subject (not shown) falls on the micrometer tomographer's subject table 200 or 600 and the breast of the subject is placed in the water bath 120 containing the microwave matching solution And the microwave measurement is performed according to a predetermined procedure. From the data obtained by the microwave measurement, a dielectric constant / conductivity distribution image within the subject's breast is generated.

In the drawings of the present invention, the auxiliary water tank and the pump apparatus for supplying the matching solution to the main water tank, the system power supply and the control apparatus for supplying and controlling power to the respective apparatuses are not disclosed, but may further include such a configuration .

In addition, the microwave scanning apparatus according to the present invention may further include a thermostat to maintain the temperature of the matching solution at a constant level, and a shape measuring device for measuring the shape of the subject's breast under the water tub 120.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

Claims (15)

A microwave scanning apparatus of a microwave tomograph, comprising a water tank filled with a matching solution,
An array antenna for transmitting and receiving microwaves in the water tank;
A rotation driving unit for rotating the water tub; And
The upper and lower driving parts for vertically moving the array antenna
And a microwave scanning unit for microwave scanning. The method according to claim 1,
The rotation drive unit includes:
A first plate supporting the water tank;
A first support rod spaced apart from the lower portion of the first plate and supporting the first plate;
A rotary plate connected to the first support rod and rotated; And
And a rotation driver
And a microwave scanning unit for microwave scanning the microwave. The method of claim 2,
Wherein the first plate is a donut-shaped circular plate. The method of claim 2,
An RF cable passage pipe through which an RF cable connected to the array antenna passes;
A second support rod connected to the array antenna so as to be spaced apart from the RF cable passage tube by a predetermined distance;
A second plate to which the RF cable channel and the second support bar are connected;
A third support rod connected to the lower portion to support the second circular plate;
A third plate connected to the third support bar; And
A vertical driver for controlling the vertical drive of the third plate,
And a microwave scanning unit for microwave scanning the microwave. The method of claim 4,
Wherein the second plate is a circular plate of a donut structure. The method of claim 5,
And the second plate is inserted into the RF cable passage tube and the second support bar through a circumferential surface of the second plate so as to pass therethrough. The method of claim 4,
Wherein the third plate is a rectangular plate, and the length of the third plate is longer than that of the first plate and the second plate. The method of claim 4,
Further comprising an RF transmitting and receiving unit connected to the RF cable of the RF cable passage tube and transmitting and receiving the microwave from the array antenna. The method of claim 8,
And the RF transceiver is disposed on both sides of the third plate. The method of claim 4,
The RF cable passage tube and the second support rod are provided so as to pass through the bottom surface of the water tub, and an O-ring provided between the bottom surface of the water tub and the RF cable passage tube,
And a microwave scanning unit for microwave scanning the microwave. The method of claim 4,
The first support rod is formed to pass through the third plate,
Further comprising a slider at a portion where the first support bar and the third plate contact each other. ≪ RTI ID = 0.0 > 11. < / RTI > The method according to claim 1,
A subject table including an object insertion port into which an object of the subject can be inserted; And
A cover for covering the object insertion port
And a microwave scanning unit for microwave scanning the microwave. The method of claim 12,
Wherein an air layer is formed between the lid of the subject and the cover and the matching solution in the water tank. The method of claim 12,
Wherein the bottom surface of the subject table and the cover are formed to be in contact with the matching solution in the water tank. The method of claim 12,
And the bottom surface of the subject table and the lid are formed of a conductor or a microwave absorber.
KR1020150098700A 2015-07-10 2015-07-10 Microwave Scanning Apparatus of the Microwave Tomography System KR20170007674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150098700A KR20170007674A (en) 2015-07-10 2015-07-10 Microwave Scanning Apparatus of the Microwave Tomography System

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150098700A KR20170007674A (en) 2015-07-10 2015-07-10 Microwave Scanning Apparatus of the Microwave Tomography System

Publications (1)

Publication Number Publication Date
KR20170007674A true KR20170007674A (en) 2017-01-19

Family

ID=57990830

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150098700A KR20170007674A (en) 2015-07-10 2015-07-10 Microwave Scanning Apparatus of the Microwave Tomography System

Country Status (1)

Country Link
KR (1) KR20170007674A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111954806A (en) * 2018-04-17 2020-11-17 Ubt有限责任公司 Apparatus for microwave measurement of dielectric discontinuity of materials

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100072600A (en) 2008-12-22 2010-07-01 한국전자통신연구원 Apparatus and method for diagnosing breast cancer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100072600A (en) 2008-12-22 2010-07-01 한국전자통신연구원 Apparatus and method for diagnosing breast cancer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111954806A (en) * 2018-04-17 2020-11-17 Ubt有限责任公司 Apparatus for microwave measurement of dielectric discontinuity of materials
US20210045652A1 (en) * 2018-04-17 2021-02-18 Ubt S.R.L. Device for microwave measurement of a dielectric discontinuity of a material

Similar Documents

Publication Publication Date Title
Epstein et al. 3D parallel-detection microwave tomography for clinical breast imaging
Meaney et al. Integration of microwave tomography with magnetic resonance for improved breast imaging
JP6314216B2 (en) Medical imaging system for microwave radiation / reception
Li et al. Parallel-detection microwave spectroscopy system for breast imaging
WO1998052464A1 (en) Electromagnetical imaging and therapeutic (emit) systems
US20120086452A1 (en) Rf coil and magnetic resonance imaging apparatus
KR20140092713A (en) RF coil device, magnetic resonance apparatus employing the same, and method of operating the RF coil device
US8427159B2 (en) Quarter wave balun for magnetic resonance imaging systems
US9504404B1 (en) Antipodal vivaldi antenna array for biomedical imaging
JP2014198067A (en) Diagnostic system
Khalesi et al. Free-space operating microwave imaging device for bone lesion detection: A phantom investigation
KR100964728B1 (en) Anntena apparatus and method for operating thereof
SE529553C2 (en) Antenna system for monitoring a target area inside a living body
Dagheyan et al. Preliminary imaging results and SAR analysis of a microwave imaging system for early breast cancer detection
KR20170007674A (en) Microwave Scanning Apparatus of the Microwave Tomography System
CN103091652B (en) For the mammary gland magnetic resonance RF receiving coil of magnetic resonance imaging system
Son et al. Experimental Measurement System for 3? 6 GHz Microwave Breast Tomography
Meaney et al. Addressing multipath signal corruption in microwave tomography and the influence on system design and algorithm development
KR20170007673A (en) Apparatus for microwave tomograph and method thereof
CN104661591B (en) For testing the device of breast tissue integrality
US20140002106A1 (en) Microwave imaging breast phantom, method for testing reliability of breast cancer diagnostic apparatus using the phantom, and breast cancer diagnostic apparatus including the phantom
KR20130010156A (en) Analysis method of microwave inverse scattering using ultrasonic wave
Fallon et al. RF testbed for thermoacoustic tomography
Koutsoupidou et al. Towards a microwave imaging prototype based on the DBIM-TwIST algorithm and a custom-made transceiver system
CN108618759B (en) Mammary gland microwave imaging method and system