CN2882539Y - Ultrasonic hardness imager for coelom - Google Patents
Ultrasonic hardness imager for coelom Download PDFInfo
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- CN2882539Y CN2882539Y CN 200620110027 CN200620110027U CN2882539Y CN 2882539 Y CN2882539 Y CN 2882539Y CN 200620110027 CN200620110027 CN 200620110027 CN 200620110027 U CN200620110027 U CN 200620110027U CN 2882539 Y CN2882539 Y CN 2882539Y
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- hardness
- conduit
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Abstract
The utility model relates to a coelom ultrasonic hardness imaging device which comprises an inner ultrasonic hardness imaging catheter and a host and is characterized in that the front end of the catheter is provided with a cylindrical pressing water sac, the catheter in the center of the pressing water sac is provided with a high-frequency ultrasonic transducer; the high-frequency ultrasonic transducer is connected with one end of a moveable adjustment and control steel wire, and moves along the shaft direction of the catheter under the control of the moveable adjustment and control steel wire; the cylindrical pressing water sac is communicated with the water inlet and outlet pipelines of the external connection. The utility model can simultaneously gain the accurate information of the pressure and the deformation of the coelom wall; the pressing water sac is conducive to evenly and accurately transmitting the pressure exerted on the structure and visually displaying the hardness of the coelom wall. The utility model provides the direct and convenient method for the scientific research and the clinical structure hardness and the hardness analysis.
Description
Technical field
This utility model relates to the body cavity internal information and obtains technology, is specifically related to be used for body lumen wall and organizes the body cavity ultrasonic hardness imager that hardness information is obtained and imaging shows.
Background technology:
Body cavity such as digestive tract, reproductive tract and urinary tract, all various pathological changes can appear, as tumor, the damage cicatrix, burn, inflammation etc., especially at digestive tract, tumor is the most common, as esophageal carcinoma, various intestinal cancer or the like, adopt gastroscope or intestinal mirror to detect at present mostly, and because failing to pinpoint a disease in diagnosis with mistaken diagnosis of producing of gastroscope or enteroscopy happens occasionally, thereby people begin to select new detection means or equipment, for example the use by ultrasonic endoscope (EUS), tumor under the energy auxiliary diagnosis mucosa, differentiate good malignant ulcer, and judge that more accurately pathological changes is soaked into and the contiguous degree that shifts, now by using miniature ultrasonic probe, can enter esophagus from the gastroscopic biopsy passage, solved pathological changes and caused esophageal stricture, and entered difficult problem, but above-mentioned ultrasonic endoscope adopts gray scale imaging usually, its principle mainly is to carry out imaging according to acoustic impedance difference between the tissue, but the acoustic impedance difference of early esophageal cancer (tumor microinvasion) pathological changes is little, is difficult to differentiate its difference by gray scale imaging, fails to pinpoint a disease in diagnosis thereby cause.
Discover that multiple pathological changes can cause organizes stiffness changing, and lesion degree and organize hardness that certain relation is arranged.As the burn (chemicals or physical factor) of esophagus, thereby can cause that the esophageal wall hardening has a strong impact on its function; Esophagus is performed the operation and postinflammatory cicatrix, also can make the stiffness changing of esophageal tissue; During esophageal tissue generation canceration, because the pathological changes of tissue causes the increase of hardness.Research also shows, adopts the method for elastogram in the diagnosis of mammary gland and prostate canceration, can obviously improve diagnosis and differentiate false negative than common Type B is ultrasonic.Yet, for realizing described elastograph imaging method, must apply certain pressure to tested position, prior art is only succeedd aspect the exerting pressure of cavity superficial place realizing, and, do not see the report that pertinent literature is arranged at present by at exert pressure than the position, the deep method and the instrument of the elastogram finished.
Summary of the invention
The purpose of this utility model provides a kind of ultrasonic hardness imager of realizing described endo-luminal ultrasound hardness imaging method.
For realizing that the technical scheme that above-mentioned purpose of the present utility model adopts is such, it is a kind of body cavity ultrasonic hardness imager, comprise endo-luminal ultrasound hardness imaging catheter and main frame, wherein, endo-luminal ultrasound hardness imaging catheter comprises conduit and is installed in the high-frequency transducer of catheter proximal end that described ultrasonic transducer cable, supply lines and holding wire are passed with main frame by catheter tip and be connected; It is characterized in that: the front end of conduit is installed the cylindrical water pocket of exerting pressure, and on the conduit at water pocket center of exerting pressure high-frequency transducer is installed; Described high-frequency transducer is connected with an end that moves the regulation and control steel wire, under it is handled, moves axially along conduit; The described cylindrical water pocket of exerting pressure is communicated with external inlet and outlet pipe.
In the described cylindrical water pocket of exerting pressure, pressure transducer is installed.
The high-frequency transducer that is installed in catheter proximal end is made of monocrystalline battle array piezoelectric ceramics, or by the polycrystalline battle array piezoelectric ceramics that can work alone separately, in the front end looping test surface formation of conduit.Described ultrasonic transducer cable, supply lines, holding wire and mobile regulation and control steel wire were passed by conduit, and were passed by catheter tip, and wherein ultrasonic transducer cable, supply lines, holding wire leading portion cable branch mouth place pass with main frame and be connected.Described mobile regulation and control chain mark is connected with the drive end of motor in an end of conduit.
Described main frame comprises ultrasonic amplifier, optical fiber pressure signal conditioner, supersonic signal generator, A/D conversion, motor, stepper motor driver, step motor control plate, the control CPU of central authorities, control panel, display.
The operation principle of said apparatus is such: described supersonic signal generator is excitation ultrasonic transducer emission ultrasonic signal under the control CPU of central authorities control, the ultrasonic signal that the ring-type ultrasonic transducer receives is controlled the cpu data input with central authorities and is connected, the signal that ultrasonic transducer receives is sent into the control CPU of central authorities after amplification and A/D conversion, the variation of pressure when interior injection of pressure transducer measurement column capsule or extraction liquid, send into the control CPU of central authorities after being transferred to A/D conversion by the fiber-optic signal conditioner, it is obtained the changing value of detected body lumen wall thickness and force value by calculating Young's modulus, and should value be reconstructed into two-dimentional colored hardness figure with the lookup table mode coloud coding by computer.Directly show with the different of color and chroma-luminance by display.
Central authorities control CPU give the step motor control plate according to instruction, and the step motor control plate sends pulse and exports to stepper motor driver, and drive motors rotates, and drives the ring-type ultrasonic transducer and retreat.Thereby obtain a series of from the body cavity lower end to body cavity the two-dimentional esophageal wall hardness figure of upper end, utilize the algorithm stack of linear interpolation method and grid smoothing to be reconstructed into three-dimensional body lumen wall hardness figure in a series of two-dimentional body lumen wall hardness figure that obtains.
Compare with prior art, the good effect that this utility model produces is:
(1), microminiaturization: the accurate data that can directly obtain pressure and body lumen wall deformation simultaneously
Press the technical standard design of miniature probe ultrasonic endoscope, also can be easy to enter inspection by the endoscopic technic platform by narrow body cavity.The mobile detectable different aspects body lumen wall of sonac is organized hardness on extension by conduit and the conduit.
(2), the column type of the catheter proximal end water pocket of exerting pressure: design helps protective tissue, detects accurately and conducting pressure.Help evenly conducting exactly to organizing applied pressure, be full of no gas-liquid in the post capsule, prevent Ultrasonic attenuation, help ultrasonicly to organizing the accurate detection of the coining degree of depth, and avoid damage detected tissue.
(3), intuitively show body lumen wall hardness: the software that utilizes this programme to provide, and can directly calculate the Young's modulus of this tangent plane body lumen wall, with the hardness number coding and with the difference of color and chroma-luminance intuitively form show body lumen wall hardness and hardness distribution in the fluorescent screen.For scientific research and clinical tissue hardness and hardness analysis provides directly, method easily.
Description of drawings:
The above-mentioned technology contents of this utility model can be by accompanying drawing the embodiment of the indefiniteness of enumerating further specify.
Fig. 1 is an apparatus structure sketch map of the present utility model;
Fig. 2 is the section enlarged diagram of catheter proximal end
Fig. 3 is the structure principle chart of device of the present utility model.
Referring to accompanying drawing: 1-conductor housing, 2-catheter body, 3-cable and fiber-optic sub-line mouth, 4-water filling port, 5-ultrasonic transducer cable, 6-pressure optical fiber, the cylindrical water pocket of exerting pressure of 7-, 8-water inlet pipe and water outlet pipe, 9-matching layer, 10-piezoelectric ceramics catheter wall, 11-ultrasonic transducer backing, 12-fibre optic compression sensor, 13-move regulation and control steel wire, 14-pressure sensing mouth, 15-conduit hollow pipeline, the flexible head end of 16-among the figure.
The specific embodiment
Among the embodiment, the overall dimensions of endo-luminal ultrasound hardness imaging catheter is similar to the miniature probe ultrasonic endoscope.Conduit external diameter 14F or bigger sends into endo-luminal ultrasound hardness imaging catheter in the body cavity.Obtain the hardness parameter of its corresponding aspect body lumen wall by the different depth that its tested body cavity is arrived.
Described catheter proximal end is installed by high frequency, the annular ultrasonic transducer that can each polycrystalline battle array piezoelectric ceramics that directly works alone constitutes or the ultrasonic transducer of monocrystalline battle array rotation and is constituted.At head end the water pocket of exerting pressure is installed, its high-frequency transducer that is installed in water pocket central authorities can move axially, and in water pocket the setting pressure pick off.With the esophagus inspection is example, as using in adult's esophagus detects, can use than the major diameter conduit, and as 16F, post bag pressure power can be pressurized to 50mmmHg, and when using in the child, uses diameter than ductule, can use less post intraluminal pressure 30mmmHg as 12F.
(1), the function of the structure of instrument and critical piece
Referring to accompanying drawing 1,2: described instrument comprises endo-luminal ultrasound hardness imaging catheter and main frame, endo-luminal ultrasound hardness imaging catheter comprises conduit and is installed in the high-frequency transducer of catheter proximal end that described ultrasonic transducer cable, supply lines and holding wire are passed with main frame by catheter tip and be connected; Feature is: the front end of conduit is installed the cylindrical water pocket of exerting pressure, and cyclic high-frequency transducer is installed on the conduit at water pocket center of exerting pressure; Described high-frequency transducer is connected with an end that moves the regulation and control steel wire, under it is handled, moves axially along conduit; The described cylindrical water pocket of exerting pressure is communicated with external inlet and outlet pipe; In the cylindrical water pocket of exerting pressure, pressure transducer is installed.
Above-mentioned cyclic high-frequency transducer can be installed in the cannelure of catheter proximal end, and a through hole or groove are vertically arranged on the cannelure, and an end that moves the regulation and control steel wire connects in the cyclic high-frequency transducer of overlapping again on the conduit cannelure.
Referring to accompanying drawing 2, among the embodiment, the front end of conduit has flexible termination 16, when guaranteeing to use to the safety at detected position.
By above-mentioned described ultrasonic hardness imaging catheter structure, its main frame comprises ultrasonic amplifier, fiber-optic signal conditioner, supersonic signal generator, A/D conversion, motor, stepper motor driver, step motor control plate, the control CPU of central authorities, control panel, monitor referring to accompanying drawing 3; Wherein said supersonic signal generator is excitation ultrasonic transducer emission ultrasonic signal under the control CPU of central authorities control, the ultrasonic signal that the ring-type ultrasonic transducer receives is controlled the cpu data input with central authorities and is connected, the signal that transducer receives is sent into the control CPU of central authorities after amplification and A/D conversion, the variation of pressure when interior injection of pressure transducer measurement column capsule or extraction liquid, send into the control CPU of central authorities after being defeated by A/D conversion by fiber-optic signal conditioner repeated transmission, by calculating hardness number, and with the different directly demonstration esophageal wall hardness of color and chroma-luminance.Central authorities control CPU can provide instruction to the step motor control plate, and the step motor control plate sends pulse and exports to stepper motor driver, and drive motors rotates, and drives the interior ring-type ultrasonic transducer of post capsule and retreats, thereby obtain a series of two-dimentional esophageal wall hardness figures.The control CPU of central authorities is the main frame core, control ultrasound transmit signal, analyze echo signal and show the esophagus inside and outside wall and the esophageal wall deformation quantity, automatically calculate hardness number according to obtaining force value, its value is encoded and show, rebuild esophageal wall hardness figure by a series of two-dimentional esophageal wall hardness figures with color and chroma-luminance mode.Control panel improves on common diasonograph, is connected with central authorities control CPU, is used for control instrument state, input data and data, measures etc.Press this programme directly with the data such as multi-form display organization hardness of color and chroma-luminance.
It is YP101 that described in an embodiment ultrasonic amplifier, supersonic signal generator, fiber-optic signal conditioner, motor, stepper motor driver, step motor control plate can adopt model respectively, 42BYG250B, SH-20403,6030 integrated circuit boards.Wherein ultrasonic transducer, amplifier and supersonic signal generator are bought by Shantou ultrasonic investigation.Fiber-optic signal conditioner (FTI-10) is provided by Canadian FISO company.Motor, stepper motor driver, step motor control plate are provided by the Beijing Helishi Electrical Machinery Technology Co., Ltd.
When instrument was worked, in ultrasonic hardness imaging catheter body cavity, ultrasonic transducer and pressure transducer synchronous working detected when being organized in different post bag pressure power simultaneously, organizes the variation of wall thickness.Each brilliant battle array ultrasonic transducer is along the emission of conduit peripheral direction and receive monophone bundle high frequency ultrasound (as 20MHz); The pressure transducer synchronized sampling detects the pressure variation that the esophageal wall tissue bears.Be transferred to the usefulness of main frame during information of same that the ultrasonic hardness imaging catheter changes pressure and tissue thickness for analysis and research.
Main frame is handled back identification esophagus inwall and esophagus outer wall and esophageal wall tissue thickness changing value automatically with ultrasonic signal, esophageal wall tissue thickness changing value and force value are calculated the detected Young's modulus of organizing by formula, its value is encoded and between esophagus inwall and esophagus outer wall, show, be reconstructed into by the lookup table mode coloud coding and obtain two dimensional surface esophageal wall hardness figure with color and chroma-luminance mode.After conduit arrives the esophagus bottom, the motor of installing by catheter tail equidistantly retreats ring-type ultrasonic transducer in the post capsule gradually again, form a series of X-Y scheme, utilize the algorithm of interpolation method and grid smoothing that a series of the stack from lower esophagus to esophagus top different aspects X-Y scheme is reconstructed into 3-D graphic by computer from lower esophagus to esophagus top different aspects.Show esophageal wall hardness with intuitive manner.
Claims (5)
1, a kind of body cavity ultrasonic hardness imager, comprise endo-luminal ultrasound hardness imaging catheter and main frame, wherein, endo-luminal ultrasound hardness imaging catheter comprises conduit and is installed in the high-frequency transducer of catheter proximal end that the cable of described ultrasonic transducer, supply lines and holding wire are passed with main frame by catheter tip and be connected; Feature is: the front end of conduit is installed the cylindrical water pocket of exerting pressure, and on the conduit at water pocket center of exerting pressure high-frequency transducer is installed; Described high-frequency transducer is connected with an end that moves the regulation and control steel wire, under it is handled, moves axially along conduit; The described cylindrical water pocket of exerting pressure is communicated with external inlet and outlet pipe.
2, body cavity ultrasonic hardness imager according to claim 1 is characterized in that: in the described cylindrical water pocket of exerting pressure pressure transducer is installed.
3, body cavity ultrasonic hardness imager according to claim 1 and 2, it is characterized in that: described high-frequency transducer is made of monocrystalline battle array piezoelectric ceramics; Or by the polycrystalline battle array piezoelectric ceramics that can work alone separately, looping test surface.
4, body cavity ultrasonic hardness imager according to claim 1 and 2 is characterized in that: described mobile regulation and control chain mark is connected with the drive end of motor in an end of conduit.
5, according to claim 1,2 described body cavity ultrasonic hardness imagers, it is characterized in that: described conduit has flexible head end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110027 CN2882539Y (en) | 2006-02-27 | 2006-02-27 | Ultrasonic hardness imager for coelom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110027 CN2882539Y (en) | 2006-02-27 | 2006-02-27 | Ultrasonic hardness imager for coelom |
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| Publication Number | Publication Date |
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| CN2882539Y true CN2882539Y (en) | 2007-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620110027 Expired - Fee Related CN2882539Y (en) | 2006-02-27 | 2006-02-27 | Ultrasonic hardness imager for coelom |
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| CN (1) | CN2882539Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384380C (en) * | 2006-02-27 | 2008-04-30 | 黄晶 | Intracavity ultrasonic hardness colour imaging method and its coelom ultrasonic hardness imaging instrument |
| CN108918675A (en) * | 2018-08-31 | 2018-11-30 | 华能国际电力股份有限公司上海石洞口第二电厂 | A kind of scene step-by-step movement hardness measurement method and measuring system |
| CN111419285A (en) * | 2020-04-28 | 2020-07-17 | 深圳英美达医疗技术有限公司 | Ultrasonic three-dimensional imaging catheter and three-dimensional scanning method thereof |
-
2006
- 2006-02-27 CN CN 200620110027 patent/CN2882539Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384380C (en) * | 2006-02-27 | 2008-04-30 | 黄晶 | Intracavity ultrasonic hardness colour imaging method and its coelom ultrasonic hardness imaging instrument |
| CN108918675A (en) * | 2018-08-31 | 2018-11-30 | 华能国际电力股份有限公司上海石洞口第二电厂 | A kind of scene step-by-step movement hardness measurement method and measuring system |
| CN111419285A (en) * | 2020-04-28 | 2020-07-17 | 深圳英美达医疗技术有限公司 | Ultrasonic three-dimensional imaging catheter and three-dimensional scanning method thereof |
| CN111419285B (en) * | 2020-04-28 | 2023-07-28 | 深圳英美达医疗技术有限公司 | Ultrasonic three-dimensional imaging catheter and three-dimensional scanning method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070328 Termination date: 20140227 |