CN87207131U - Probe of scanning ultrasonic diagnostic apparatus - Google Patents
Probe of scanning ultrasonic diagnostic apparatus Download PDFInfo
- Publication number
- CN87207131U CN87207131U CN 87207131 CN87207131U CN87207131U CN 87207131 U CN87207131 U CN 87207131U CN 87207131 CN87207131 CN 87207131 CN 87207131 U CN87207131 U CN 87207131U CN 87207131 U CN87207131 U CN 87207131U
- Authority
- CN
- China
- Prior art keywords
- acoustic
- acoustic mirror
- ultrasonic
- sap cavity
- coupling
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Images
Landscapes
- Ultra Sonic Daignosis Equipment (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to a probe of a mechanical scanning ultrasonic diagnostic apparatus, which belongs to the technical field of medical diagnosing apparatus. The probe adopts the work mode of a rotary acoustic mirror to form a new ultrasonic scanner. Only one acoustic mirror is arranged in an acoustic coupling liquid cavity, and the rotation of the acoustic mirror makes use of a non-contact type magnetic coupler to transmit dynamic force, thus, the utility model eradicates the shortages of dynamic sealing, dynamic lead wires, an ultrasonic transducer which can not be replaced, etc. in the traditional mode. The design proposals of an ultrasonic endoscope and a sector scanning ultrasonic diagnosing apparatus are greatly improved. The utility model has the advantages of small size, low cost, high cost performance, etc.
Description
The utility model relates to the probe of a kind of ultrasonic endoscope or sector display diagnostic equipment, belongs to ultrasonic diagnosis instrument technical field.
Ultrasonic transducer must be sealed in the acoustic coupling sap cavity that does not have an air in mechanical scanning ultrasonic diagnosis instrument probe in the past, because there is not acoustic coupling liquid, ultrasonic beam will be completely cut off by air, can't enter human body.When scanning, ultrasonic transducer will come back rotation.For a long time, the dynamic seal (packing) of ultrasonic transducer rotating shaft is an insoluble problem always.In addition, ultrasonic transducer is worked under resonant condition, a ultrasonic transducer can only be launched a kind of ultrasound wave of frequency, also has only a focal length, and in operating process, ultrasonic transducer can not take out from the sealing sap cavity, therefore, change ultrasonic frequency or focal length and just must change whole probe.Jap.P. " disclosing practical 61-57908 " discloses a kind of ultrasonic endoscope, this endoscope is exactly that ultrasonic transducer is installed in the sealing sap cavity of probe, sap cavity is stretched out in its rotating shaft, at the logical ultrasonic transducer lead in the center of rotating shaft, rotating shaft and sap cavity stop the leakage of coupling liquid by an O-ring seal.The shortcoming of this structure is exactly that a rotating shaft is stretched out in annular seal space, has a dynamic seal (packing) problem, and the leakage that thoroughly stop coupling liquid is very difficult, especially after O-ring seal is worn, just inevitably leakage phenomenon can take place.In addition, the ultrasonic transducer of this endoscope also can not be changed, an a kind of frequency of probe and a focal length.And this endoscope needs come indicate ultrasound ripple scanning angle with angular transducer, and volume is big, cost is high.
The purpose of this utility model is to overcome above-mentioned shortcoming, thoroughly solves the sealing problem of sap cavity; Also to change ultrasonic transducer at an easy rate simultaneously, make a probe can launch the focused sound beam of different frequency or emission different focal, the performance of improving price ratio; Save the angular transducer of beacon scanning angle, to reduce production costs, the volume that reduces to pop one's head in.
Formation of the present utility model is, an acoustic coupling sap cavity is arranged in the ultrasonic diagnosis instrument probe, has only an acoustic mirror in the chamber, acoustic mirror normal and shaft axis angle at 45.At the acoustic mirror front end is a ultrasonic transducer, and the transducers transmit ultrasonic waves bundle enters human body at an angle of 90 with axis after the acoustic mirror reflection, and the echo of human body is received by transducer again through catoptron.The acoustic mirror rear end is connected with the part of contactless transmission of torque device by rotating shaft, another part is outside sap cavity, by contactless moment coupling, acoustic mirror is rotated in the coupling sap cavity of sealing, simultaneously, through the ultrasound wave of acoustic mirror reflection with the plane interscan of axis normal.On the shell in the acoustic mirror outside, have sound transmitting window, can allow ultrasound wave appear, on sound transmitting window, be embedded with anti-sound strip target, with respect to echo very big signal to noise ratio (S/N ratio) is arranged from the echo of target reflection from the sound transmitting window reflection, after signal Processing, the echoed signal of target just can be used to refer to the scanning angle position at ultrasonic beam place.
Accompanying drawing 1 is a ultrasonic endoscope probe embodiments structural representation of the present utility model;
Accompanying drawing 2 is acoustic beam scanning theory figure;
Accompanying drawing 3 is mechanical sector scan supersonic diagnostic set probe embodiments structural representations of the present utility model.
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
As shown in Figure 2, ultrasonic beam 21 is transmitted on the acoustic mirror 23 of an energy reflection supersonic wave along axis direction, 25 one-tenth θ angles of the normal 24 and the rotating shaft of this catoptron, according to the wave reflection principle, incident angle equals reflection angle, if the θ angle equals 45 °, then the angle between the ultrasonic beam 22 of the ultrasonic beam 21 of incident and reflection just in time is 90 °, that is to say, ultrasonic beam 22 after the reflection just in time with axis normal, along with the rotation of rotating shaft 25, ultrasonic beam 22 just with the plane interscan of axis normal, and the corner of the angle of scanning and rotating shaft 25 is synchronous.Ultrasonic beam 22 is after running into object, and one one is absorbed by object, and one one is reflected, and the ultrasound wave that reflects is got back to ultrasonic transducer again by the approach of reflex time, and is received by transducer.Just can differentiate the structure and properties of testee according to the power of received signal.If ultrasonic beam is run into objects such as metal, then ultrasound wave almost all is reflected, and sort signal is the strong reflection signal, and this signal is easy to a strong reflection Signal Separation by signal Processing and comes out than strong several times of regular reflection signal.If an anti-sound strip target with parallel axes is set in the acoustic mirror periphery, when ultrasonic beam begins to scan, be the circular scan starting point, when the strong reflection signal occurring for the second time the strong reflection signal to occur for the first time, just illustrate that ultrasonic beam has scanned a week, PPI scanning that Here it is.If two anti-sound strip target with parallel axes are set in the acoustic mirror periphery, with first noise signal is sweep starting point, with second noise signal is sweep stopping point, then acoustic mirror rotating shaft counter-rotating, ultrasonic beam is toward flyback retrace, ultrasonic beam is come flyback retrace between two anti-sound strip target, ultrasonic beam forms a fan-shaped plan, so-called sector display that Here it is.No matter be PPI scanning or sector display, in scanning process, have only acoustic mirror rotating, and that ultrasonic transducer maintain static is moving, ultimate principle of the present utility model that Here it is.
First embodiment of the present utility model is a ultrasonic endoscope probe, as shown in Figure 1.There is a ultrasonic transducer 1 termination at the ultrasonic endoscope probe, and transducer 1 is fixed on the housing 5, and ultrasonic transducer 1 is by sound passing membrane 2 and 4 couplings of acoustic coupling sap cavity.An effect of sound passing membrane 2 is that acoustic coupling sap cavity 4 is hedged off from the outer world, and another effect is to allow ultrasonic beam enter sap cavity and be mapped on the acoustic mirror 3.When transposing ultrasonic transducer 1, the coupling liquid in the sap cavity is unaffected.Acoustic mirror 3 its normals and pivot center 13 angles at 45 in the sap cavity, an end of rotating shaft 7 links to each other with acoustic mirror 3, and the other end is equipped with a permanent-magnet steel 8, and acoustic mirror 3 and permanent-magnet steel 8 all are sealed in the acoustic coupling sap cavity 4 of degasification.The rotation of acoustic mirror 3 in the acoustic coupling sap cavity comes transferring power by contactless magnetic coupling, this magnetic coupling is to be realized by the permanent-magnet steel 10 that mechanical force moment rotates by rotating shaft 12, also can realize transmission by the rotating magnetic field that a solenoid constitutes.According to the principle of electromagnetic force, when permanent-magnet steel 10 rotates or rotating magnetic field when producing, permanent-magnet steel 8 also can and then rotate, and rotates thereby drive acoustic mirror 3, and ultrasonic beam is planar scanned.9 is metacnemes of acoustic coupling sap cavity 4 among the figure.Bearing 6 is bearings of acoustic mirror rotating shaft 7, because do not consider sealing, so bearing 6 is generally selected the less bearing of friction factor for use.Bearing 11 is bearings of the rotating shaft 12 of permanent-magnet steel 10, also will consider to have less friction factor.On the cylinder blanket 5 in acoustic mirror 3 outsides, have sound transmitting window, make ultrasonic beam can pass sound transmitting window and enter human body.On sound transmitting window, be embedded with an anti-sound strip target parallel with shaft axis 13, anti-the function of sound strip target is the indication scanning angle, the signal that this anti-sound strip target is again simultaneously a ultrasonic transducer 1 connects lead, as ultrasonic endoscope, the scan mode of its ultrasonic beam is circular scan, i.e. PPI scanning is owing to saved angular transducer, make the volume of probe to dwindle, cost also can reduce simultaneously.If the change frequency of ultrasonic, or focal length only need change ultrasonic transducer 1, because transducer is outside sap cavity, so change very convenient.The acoustic coupling sap cavity of this ultrasonic endoscope probe is fully closed, has therefore fundamentally solved the problem that coupling liquid is leaked.On probe, also be furnished with optical fiber 14 and object lens 26, make this endoscope possess the performance of endoscope optical simultaneously again.
Second embodiment of the present utility model is a sector display ultrasonic diagnosis instrument probe, as shown in Figure 3.Structure and first embodiment of its ultrasonic scanning part are basic identical, and just the angle and the power system of scanning are different.Power system is made of stepper motor 15, bevel type gear 16, bevel type gear 18, bearing 17, bearing 19 and driving-belt 20.Have sound transmitting window on the shell 5 in acoustic mirror 3 outsides, be embedded with 2 anti-sound strip target parallel with pivot center 13 on sound transmitting window, this anti-sound strip target connects lead as the signal of ultrasonic transducer 1 simultaneously.The strong anti-acoustical signal of gained is as the initial position of scanning when ultrasonic beam scans the anti-sound of article one strip target, signal when scanning the anti-sound of second strip target resulting strong anti-acoustical signal as the final position signal of scanning, rotating with these signals come control step motor 15 makes ultrasonic beam toward flyback retrace by power system.Article two, the relative position of anti-sound strip target has determined the fan-shaped angle of scanning.This sector display diagnostic equipment probe belongs to same basic design of the present utility model, so it also possesses the various advantages of first embodiment.
The utility model has been eradicated the always necessary dynamic seal (packing) of ultrasonic diagnosis instrument probe, the drawbacks such as dynamic lead-in wire and non-exchange ultrasonic transducer, solved people and called on for a long time the technical barrier of hoping solution, so that substantial progress takes place the design of ultrasonic endoscope and sectoring supersonic diagnostic set. Have that volume is little, cost is low, cost performance ratio.
Claims (7)
1, a kind of mechanical scanning ultrasonic diagnosis instrument probe, by ultrasonic transducer, mechanical driving device and housing constitute, it is characterized in that, ultrasonic transducer 1 is installed in outside the acoustic coupling sap cavity 4, one acoustic mirror 3 that can rotate around axis is arranged in acoustic coupling sap cavity 4, the rotation of acoustic mirror 3 comes transferring power by contactless transmission of torque device, on the shell 5 in acoustic mirror 3 outsides, have sound transmitting window, on sound transmitting window, be embedded with anti-sound strip target with the beacon scanning angle of acoustic mirror 3 shaft parallels.
2, ultrasonic diagnosis instrument probe as claimed in claim 1 is characterized in that ultrasonic transducer 1 by sound passing membrane 2 and 4 couplings of acoustic coupling sap cavity, and ultrasonic transducer 1 does not rotate during work.
3, ultrasonic diagnosis instrument probe as claimed in claim 1, normal and 1 ° of angle at 45 of pivot center of it is characterized in that the acoustic mirror 3 in the acoustic coupling sap cavity, one end of rotating shaft 7 links to each other with acoustic mirror 3, the other end is equipped with a permanent-magnet steel 8, and acoustic mirror 3 and permanent-magnet steel 8 all are sealed in the acoustic coupling sap cavity 4 of degasification.
4, ultrasonic diagnosis instrument probe as claimed in claim 1 or 2, the normal and pivot center 13 angles at 45 that it is characterized in that the acoustic mirror 3 in the acoustic coupling sap cavity, one end of rotating shaft 7 links to each other with acoustic mirror 3, the other end is equipped with a permanent-magnet steel 8, and acoustic mirror 3, rotating shaft 7 and permanent-magnet steel 8 all are sealed in the acoustic coupling sap cavity 4 of degasification.
5, ultrasonic diagnosis instrument probe as claimed in claim 1, it is characterized in that the rotation of acoustic mirror 3 in the acoustic coupling sap cavity comes transferring power by contactless magnetic coupling, this magnetic coupling is the permanent-magnet steel 10 or the rotating magnetic field of being rotated by mechanical force moment.
6, as claim 1 or 2 or 3 described ultrasonic diagnosis instrument probes, it is characterized in that the rotation of acoustic mirror 3 in the acoustic coupling sap cavity comes transferring power by contactless magnetic coupling, this magnetic coupling is the permanent-magnet steel 10 or the rotating magnetic field of being rotated by mechanical force moment.
As claim 1 or 2 or 3 or 5 described ultrasonic diagnosis instrument probes, it is characterized in that 7, be embedded with 1～2 with metal anti-sound strip target on sound transmitting window, the signal that this anti-sound strip target can be used as ultrasonic transducer again connects lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207131 CN87207131U (en) | 1987-06-03 | 1987-06-03 | Probe of scanning ultrasonic diagnostic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207131 CN87207131U (en) | 1987-06-03 | 1987-06-03 | Probe of scanning ultrasonic diagnostic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87207131U true CN87207131U (en) | 1988-02-03 |
Family
ID=4822607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87207131 Withdrawn CN87207131U (en) | 1987-06-03 | 1987-06-03 | Probe of scanning ultrasonic diagnostic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87207131U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301686C (en) * | 2002-06-10 | 2007-02-28 | 西门子公司 | Bellows for coupling sound wave source to bios |
| CN1322839C (en) * | 2004-06-28 | 2007-06-27 | 天津大学 | Medical mini supersonic -OCT probe via endoscope |
| CN102854142A (en) * | 2012-08-28 | 2013-01-02 | 曾吕明 | Optical resolution type photoacoustic microscope based on optical beam scanning |
| CN102854144A (en) * | 2012-08-28 | 2013-01-02 | 曾吕明 | Portable backward photoacoustic microscope based on laser diode |
| CN104374833A (en) * | 2014-11-28 | 2015-02-25 | 南通友联数码技术开发有限公司 | Ultrasonic probe sector-scanning device |
| CN107773270A (en) * | 2016-08-31 | 2018-03-09 | 马雪琳 | A kind of removable endoscope-use ultrasonic probe |
| CN110403562A (en) * | 2019-07-24 | 2019-11-05 | 朱禹华 | A kind of rigid pipe endoscope at the unlimited visual angle of the inseparable formula of straight-bar |
-
1987
- 1987-06-03 CN CN 87207131 patent/CN87207131U/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301686C (en) * | 2002-06-10 | 2007-02-28 | 西门子公司 | Bellows for coupling sound wave source to bios |
| CN1322839C (en) * | 2004-06-28 | 2007-06-27 | 天津大学 | Medical mini supersonic -OCT probe via endoscope |
| CN102854142A (en) * | 2012-08-28 | 2013-01-02 | 曾吕明 | Optical resolution type photoacoustic microscope based on optical beam scanning |
| CN102854144A (en) * | 2012-08-28 | 2013-01-02 | 曾吕明 | Portable backward photoacoustic microscope based on laser diode |
| CN104374833A (en) * | 2014-11-28 | 2015-02-25 | 南通友联数码技术开发有限公司 | Ultrasonic probe sector-scanning device |
| CN107773270A (en) * | 2016-08-31 | 2018-03-09 | 马雪琳 | A kind of removable endoscope-use ultrasonic probe |
| CN107773270B (en) * | 2016-08-31 | 2024-06-07 | 马雪琳 | Detachable ultrasonic probe for endoscope |
| CN110403562A (en) * | 2019-07-24 | 2019-11-05 | 朱禹华 | A kind of rigid pipe endoscope at the unlimited visual angle of the inseparable formula of straight-bar |
| CN110403562B (en) * | 2019-07-24 | 2021-10-12 | 青岛大学附属医院 | Straight-bar inseparable hard tube endoscope with infinite visual angle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1085040A (en) | Ultrasonic transducer system and method | |
| CA1101980A (en) | Ultrasonic transducer probe | |
| CN102743191B (en) | Focusing rotary scanning photoacoustic ultrasonic blood vessel endoscope imaging device and focusing rotary scanning photoacoustic ultrasonic blood vessel endoscope imaging method | |
| US4507582A (en) | Matching region for damped piezoelectric ultrasonic apparatus | |
| US4274421A (en) | Echo sound apparatus including an oscillating mirror for use in medical diagnosis | |
| EP1255124A3 (en) | Ultrasonic diagnostic scanning for three dimensional display | |
| JPH0638962A (en) | Ultrasonic probe for picking up three-dimensional data | |
| EP0142832A3 (en) | Oscillating ultrasound scanhead | |
| EP0095383A2 (en) | Ultrasonic imaging device | |
| JP2000139917A (en) | Ultrasonograph | |
| US5357963A (en) | Sealed magnetic drive means without a passage through a wall and ultrasound probe comprising an application thereof | |
| CN87207131U (en) | Probe of scanning ultrasonic diagnostic apparatus | |
| CN100500102C (en) | B-type ultrasonic position feedback type mechanical fan probe apparatus | |
| EP0293803A3 (en) | Fan-shape scanning ultrasonic flaw detecting apparatus | |
| JPS6321045A (en) | Mechanical scanning type ultrasonic probe | |
| Haumesser et al. | Behavior of first guided wave on finite cylindrical shells of various lengths: Experimental investigation | |
| CN211583235U (en) | Couplant applicator for ultrasound department | |
| US4677853A (en) | Ultrasonic probe | |
| CN201088595Y (en) | B-type ultrasound position feedback type mechanical fan probe device | |
| US4884246A (en) | Method and apparatus for reflection mode imaging | |
| JPH0265852A (en) | Intracoelomic ultrasonic probe | |
| JPH06154220A (en) | Mechanical scanning type ultrasonic probe | |
| CN219810892U (en) | Ultrasonic sensor and ultrasonic flaw detection device for detecting defects of inner wall of central hole | |
| CN217638866U (en) | Double-crystal surface wave probe for detecting cracks of gear teeth of in-service fan bearing | |
| JPH0223177B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Designer after: Shou Wende Designer after: Wang Lin Designer after: Ji Shusen Designer before: Shou Wende |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: SHOU WENEE TO: SHOU WENEE; WANG LIN; JI SHUSEN |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |