CN1307945C - Medical mini supersonic probe via endoscope - Google Patents
Medical mini supersonic probe via endoscope Download PDFInfo
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- CN1307945C CN1307945C CNB2004100197459A CN200410019745A CN1307945C CN 1307945 C CN1307945 C CN 1307945C CN B2004100197459 A CNB2004100197459 A CN B2004100197459A CN 200410019745 A CN200410019745 A CN 200410019745A CN 1307945 C CN1307945 C CN 1307945C
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Abstract
The present invention relates to a miniature ultrasonic probe of a medical endoscope. The present invention comprises an ultrasonic transducer and an ultrasonic motor. The stator of the ultrasonic motor is fixed on the inner wall of a packaging outer shell. The ultrasonic transducer in the packaging outer shell can be directly fixed on the rotor of the ultrasonic motor, and can also be fixed at the top end in the packaging outer shell. An acoustic reflector is fixedly arranged on the rotor of the ultrasonic motor. The present invention can directly observe the pathologic morphology of mucosa surfaces through the endoscope, and can carry out ultrasonic scanning in order to obtain the histological characteristics of each dislocation of the pipe walls of digestive organs. The present invention enlarges the diagnosis range of the endoscope, and enhances the diagnosis ability of the endoscope. The present invention is directly driven by the ultrasonic motor, does not need soft connection, and greatly prolongs service life. A driving part has no electromagnetic interference. The present invention can be used for the ultrasonic examination of any endoscope system with standard biopsy channels, so the present invention has the advantages of wide application foreground, simple operation, flexibility, convenience and easy control.
Description
[technical field]: the present invention relates to a kind of Medical Instruments, particularly a kind of medical through endoscope's miniature ultrasonic scanning imaging system adnexa.
[background technology]: in the middle of diagnosis, infer the method for pathological changes situation merely according to the metamorphosis of tissue surface, have certain subjectivity and limitation to the body cavity pathological changes.Endoscope's ultrasonic image-forming system can be by ultrasonic scanning, obtains comparatively clear, the faultage image of histoorgan accurately, and controlling for executing to the ill of doctor provides objective foundation.
Simultaneously, after endoscope's ultrasonic scanning system is with the biopsy forceps road insertion body cavity organ of miniature ultrasonic probe by alimentary tract endoscope, both can be by the pathological change form of endoscope's direct observation mucomembranous surface, can carry out ultrasonic scanning again, obtain the histologic characteristics of each tomography of organ tube wall, therefore enlarged the diagnostic area of endoscope, improved the diagnosis capability of endoscope, its diagnosis and treatment advantage is known together by medical circle.
Because be subjected to the restriction of endoscopic biopsy pincers road size, the design of probe faces many difficult problems.As:
1. prior art " the mechanical scanning ultrasonic diagnosis instrument probe " .-1988.02.03.-10 of CN87207131/ Shanghai Communications University (Shou Wenee) page or leaf discloses a kind of mechanical scanning ultrasonic diagnosis instrument probe.This probe adopts the working method of whir reflecting mirror, and an acoustic mirror is arranged in the acoustical coupling sap cavity, and the rotation of reflecting mirror comes transferring power by contactless magnetic coupler.Ultrasonic transducer is installed in outside the acoustical coupling sap cavity, and ultrasonic transducer does not rotate during work.The normal of acoustic mirror and pivot center angle at 45, an end of rotating shaft links to each other with acoustic mirror, and the other end is equipped with a permanent-magnet steel, and acoustic mirror and permanent-magnet steel all are sealed in the acoustical coupling sap cavity of degasification.On probe, also be furnished with optical fiber and object lens, make this endoscope possess the performance of endoscope optical simultaneously again.
Its deficiency is, this probe places the side of shank with endoscope optical, limited the scope of optical imagery greatly; Simultaneously, because electromagnetic motor and transducer distance are very near, the electromagnetic interference that causes thus will produce noise in echo channel, cause the reduction of picture quality.
2.Ultrasonic probe assembly US5255684/Interspec, (Rello, MichaelJ.) .-1993.10.26 disclose a kind of ultrasonic probe combination set device to Inc..This device comprises isolated two parts, and ultrasonic transducer is loaded on first, and CD-ROM drive motor is loaded on second portion, and soft connection the between two parts, drive motors drives ultrasonic transducer and carries out mechanical scanning.
When ultrasonic transducer was positioned at body cavity, it is external that CD-ROM drive motor is stayed the patient.Can reduce to enter the size of endoceliac probe unit like this.Its deficiency is, when softness is connected transmission loss bigger, cause whole device lifetime shorter.
3.Ultrasonic endoscope apparatus US4,880,011/Olympus Optical Co., Ltd. (Imade, Shinichi et al) .-1989.11.14 discloses a kind of invention of ultrasonic endoscopic device.Be equipped with on the top of this endoscope apparatus input block can rotating supersonic vibration unit, and this unit sends ultrasound wave to obtain to be detected the image of object, and the angle of revolution sensing mechanism is also contained on the top.Among the 4th embodiment of this invention (Fig 8), the unitary rotating shaft of supersonic vibration connects the rotating shaft of motor, motor be used to drive the supersonic vibration unit rotary and with the supersonic vibration unit with the top that is loaded on input block.
Though this invention directly links to each other motor with transducer, be installed on the front end of endoscope, because probe size is excessive, endoscope distal end can't be installed electronics or optical imaging device and biopsy forceps road, has limited the practicality of this device greatly.
[summary of the invention]: the objective of the invention is to solve the deficiency that exists in the above-mentioned technology, provide a kind of and can not produce noise jamming in echo channel, improve picture quality, and power transmission loss is little, it is medical through endoscope's miniature ultrasonic probe that the life-span is grown.
Provided by the invention medical through endoscope's miniature ultrasonic probe, comprise miniature ultrasonic transducer, micro supersonic motor (having authorized patent of invention), the stator of ultrasonic motor and package casing inwall are fixed together, the package casing of front end that is positioned at the rotor of stator front end is provided with the miniature ultrasonic transducer, and the tail end of micro supersonic motor connects power control line.
The miniature ultrasonic transducer can directly be fixed on the rotor of ultrasonic motor; Also can be fixed on the top in the package casing, and on the rotor of ultrasonic motor, fixedly mount an acoustic mirror.
Advantage of the present invention and good effect:
(1) dual diagnosis.Both can carry out ultrasonic scanning again, obtain the histologic characteristics of each tomography of digestive organs tube wall by the pathological change form of endoscope's direct observation mucomembranous surface.Therefore enlarge the diagnostic area of endoscope, improved the diagnosis capability of endoscope.
(2) life-span is long.Endoscope of the present invention ultrasonic probe is driven by the micro supersonic motor that directly is installed on the probe front end, need not soft the connection, and compared with prior art, extend service life greatly.
(3) highly versatile.Because the ultrasonic endoscopic imaging system matches with conventional endoscope, does not need special endoscope's carrier.Native system can be used for any ultrasonic indagation that possesses the endoscopic system in standard biopsy pincers road, so application prospect is extensive.
(4) simple to operate, flexible, convenient.During disease, operator and assistant and other staff can both carry out various operations under the direct-view of monitor in diagnosis and treatment in endoscope, make the operator of each side can both tacit cooperation and safety.Therefore operate flexibly, conveniently, be easy to grasp.
(5) drive part does not have electromagnetic interference.
[description of drawings]:
Fig. 1 is that miniature ultrasonic probe of the present invention scans sketch map through endoscope;
Fig. 2 is the miniature probe structural representation of the embodiment of the invention 1;
Fig. 3 is the miniature probe structural representation of the embodiment of the invention 2;
Fig. 4 is alimentary tract endoscope handle of the present invention and biopsy forceps road sketch map;
Fig. 5 is the structure chart of alimentary tract endoscope of the present invention in conjunction with miniature ultrasonic probe.
[specific embodiment]:
Embodiment 1:
As shown in Figure 2, this miniature ultrasonic probe comprises a miniature ultrasonic transducer 11, a micro supersonic motor, the stator 13 and package casing 14 inwalls of ultrasonic motor are fixed together, the rotor 12 and the miniature ultrasonic transducer 11 of ultrasonic motor are fixed together, ultrasonic transducer 11 is immersed in the middle of the acoustic couplant 19, rotor banding actuating miniature ultrasonic transducer is around the axis rotation sweep, and the tail end of micro supersonic motor connects power control line.
Embodiment 2:
As shown in Figure 3, the stator 13 of micro supersonic motor, miniature ultrasonic transducer 11 are fixed together with package casing 14, the rotor 12 and the acoustic mirror 15 of micro supersonic motor are fixed together, ultrasonic transducer 11 and acoustic mirror 15 are immersed in the middle of the acoustic couplant 19, rotor drives acoustic mirror and rotates around axis, and ultrasound wave is realized sector scanning after the acoustic mirror reflection.
Practical application:
Example 1, as shown in Figure 1, through endoscope's ultrasonic image-forming system based on endoscopic system, miniature ultrasonic probe 1 (comprising miniature ultrasonic transducer and ultrasonic motor) from endoscope 2 be positioned on the handle 5 biopsy mouth 4 via biopsy forceps road 3 insert body cavitys, near Target organ, drive ultrasonic probe by micro supersonic motor and realize the sector scan imaging, its object of observation is the section of organ tomography structure.
Example 2, alimentary tract endoscope are used for gastral splanchnoscopy, and endoscope's ultrasonic probe is that the biopsy forceps road by alimentary tract endoscope enters intravital.Fig. 4 is seen in the biopsy forceps road 3 of endoscope 2, is generally the teflon hose of internal diameter 2.8mm.Because there is one section 90 hard tube sweep of spending in the biopsy forceps road at inlet below 4, so the diameter of ultrasonic probe and ultrasonic motor and coupling part thereof must be less than or equal to 2 millimeters, inflexibility length could guarantee that less than 12 millimeters probe segment passes through smoothly.
Fig. 5 is the front-end view of alimentary tract endoscope, and endoscope distal end has four holes, and biopsy outlet 6 is used for biopsy apparatus and miniature ultrasonic probe scanning; CCD imaging device 7 is used for the color video frequency image on record organization surface.Illumination channel 8 is used for background illumination.Endoscope 2 is the flexible pipe mirror.
Miniature ultrasonic transducer 11 adopts the version in piezoelectric ceramics-polymer mixed material sphere list source, and its basic structure and imaging parameters made estimation: probe maximum gauge 2mm, mid frequency 12MHz, bandwidth is more than 60%, horizontal stroke/longitudinal resolution is 0.385mm, and the depth of field is 8.3mm.Motor 13 adopts the flexural vibration mode micro supersonic motor.
Claims (1)
1, a kind of medical through endoscope's miniature ultrasonic probe, comprise ultrasonic transducer, ultrasonic motor, it is characterized in that described ultrasonic motor is the flexural vibration mode micro supersonic motor, its stator and package casing inwall are fixed together, the miniature ultrasonic transducer is fixed on the top in the package casing, on the rotor of ultrasonic motor, be installed with an acoustic mirror, the tail end of micro supersonic motor connects power control line, wherein the miniature ultrasonic transducer adopts the version in piezoelectric ceramics-polymer mixed material sphere list source, the diameter of ultrasonic probe and ultrasonic motor and coupling part thereof is less than or equal to 2 millimeters, and inflexibility length is less than 12 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100197459A CN1307945C (en) | 2004-06-28 | 2004-06-28 | Medical mini supersonic probe via endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100197459A CN1307945C (en) | 2004-06-28 | 2004-06-28 | Medical mini supersonic probe via endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1593350A CN1593350A (en) | 2005-03-16 |
| CN1307945C true CN1307945C (en) | 2007-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100197459A Expired - Fee Related CN1307945C (en) | 2004-06-28 | 2004-06-28 | Medical mini supersonic probe via endoscope |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9000653B2 (en) * | 2005-08-08 | 2015-04-07 | Koninklijke Philips N.V. | Ultrasound transducer arrays |
| JP2007260381A (en) * | 2006-03-03 | 2007-10-11 | Olympus Medical Systems Corp | Ultrasonic endoscope |
| EP2114004B1 (en) * | 2006-09-25 | 2014-12-17 | National University Corporation Tokyo University of Agriculture and Technology | Ultrasonic operation device and microtube inside system |
| JP5248147B2 (en) * | 2008-03-10 | 2013-07-31 | 株式会社東芝 | Ultrasonic probe |
| CN102085105A (en) * | 2011-03-10 | 2011-06-08 | 苏州中加医疗科技有限公司 | Electronic gastroscope and ultrasonic combined probe |
| US10265046B2 (en) * | 2014-11-26 | 2019-04-23 | Visura Technologies, Inc. | Apparatus, system and methods for proper transesophageal echocardiography probe positioning by using camera for ultrasound imaging |
| CN105559736B (en) * | 2015-12-15 | 2019-01-25 | 深圳先进技术研究院 | A kind of ultrasound capsule endoscope |
| CN106264618B (en) * | 2016-08-30 | 2024-04-16 | 上海益超医疗器械有限公司 | Uterine ultrasonic endoscope system |
| CN106872586A (en) * | 2017-03-31 | 2017-06-20 | 天津大学 | A kind of multi-frequency digital echo signal processing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4880011A (en) * | 1987-04-30 | 1989-11-14 | Olympus Optical Co., Ltd. | Ultrasonic endoscope apparatus |
| US5255684A (en) * | 1991-10-25 | 1993-10-26 | Interspec, Inc. | Ultrasonic probe assembly |
| CN1353970A (en) * | 2000-11-17 | 2002-06-19 | 松下电器产业株式会社 | Ultrasonic probe and manufacturing mehtod thereof |
| CN1359659A (en) * | 2000-11-17 | 2002-07-24 | 松下电器产业株式会社 | Ultrasonic probe |
-
2004
- 2004-06-28 CN CNB2004100197459A patent/CN1307945C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4880011A (en) * | 1987-04-30 | 1989-11-14 | Olympus Optical Co., Ltd. | Ultrasonic endoscope apparatus |
| US5255684A (en) * | 1991-10-25 | 1993-10-26 | Interspec, Inc. | Ultrasonic probe assembly |
| CN1353970A (en) * | 2000-11-17 | 2002-06-19 | 松下电器产业株式会社 | Ultrasonic probe and manufacturing mehtod thereof |
| CN1359659A (en) * | 2000-11-17 | 2002-07-24 | 松下电器产业株式会社 | Ultrasonic probe |
Non-Patent Citations (3)
| Title |
|---|
| 基于微型马达的医用内窥监视***研究 曹长江，张琛，张凯宾，仪表技术与传感器，第4卷 2001 * |
| 超声电机在内镜驱动及控制技术方面的应用研究 刘辛国，周铁英，陈宇，中国医学影像技术，第19卷第11期 2003 * |
| 超声电机在内镜驱动及控制技术方面的应用研究 刘辛国，周铁英，陈宇，中国医学影像技术，第19卷第11期 2003;基于微型马达的医用内窥监视***研究 曹长江，张琛，张凯宾，仪表技术与传感器，第4卷 2001 * |
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| Publication number | Publication date |
|---|---|
| CN1593350A (en) | 2005-03-16 |
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