WO2004084734A1 - 超音波探触子 - Google Patents
超音波探触子 Download PDFInfo
- Publication number
- WO2004084734A1 WO2004084734A1 PCT/JP2004/004045 JP2004004045W WO2004084734A1 WO 2004084734 A1 WO2004084734 A1 WO 2004084734A1 JP 2004004045 W JP2004004045 W JP 2004004045W WO 2004084734 A1 WO2004084734 A1 WO 2004084734A1
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- WO
- WIPO (PCT)
- Prior art keywords
- ground
- substrate
- sensor
- ultrasonic
- board
- Prior art date
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Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
- A61B8/4455—Features of the external shape of the probe, e.g. ergonomic aspects
Definitions
- the present invention relates to an ultrasonic probe used in an ultrasonic diagnostic apparatus that radiates ultrasonic waves into the body of a subject and creates and displays a tomographic image of the inside of the body from ultrasonic waves reflected at boundaries of each body tissue. Things.
- Ultrasound diagnostic devices obtain two-dimensional information in a living body by transmitting and receiving ultrasonic waves to and from the living body, and are used in various medical fields.
- the ultrasonic diagnostic apparatus includes a probe for transmitting an ultrasonic wave into the body of a subject and receiving a reflected wave from the body tissue.
- Such an ultrasonic diagnostic apparatus and a probe constituting the ultrasonic diagnostic apparatus are disclosed in, for example, Japanese Patent No. 1746663.
- FIG. 5 is a schematic cross-sectional view showing an example of a probe constituting a conventional ultrasonic diagnostic apparatus.
- the ultrasonic probe includes a sensor unit 200, a cable unit 201, and a connector unit 202 connected to an ultrasonic diagnostic apparatus main body (not shown).
- the sensor unit 200 includes an ultrasonic element 203 for transmitting and receiving ultrasonic waves, a sensor signal board 204 electrically connected to the ultrasonic element 203, and a sensor ground board 205.
- the sensor unit 200 is connected to the sensor connector 217.
- the sensor connector 210 is connected to the sensor signal board 204 and the sensor ground board 205.
- the connector section 202 has a main body connection connector 215 and pins 216 to which the signal line 209a and the ground line 209b are individually connected. Is contained.
- the connector housing 21 has a conductive layer 214 on its inner wall surface.
- the cable shield 210 is connected to the conductor layer 214 and, when connected to the ultrasonic diagnostic apparatus main body, is connected to a frame ground or a signal ground of the ultrasonic diagnostic apparatus main body.
- the ground electrode of the ultrasonic element 203 is connected to the sensor ground substrate 205, the sensor connector 211 and the cable connector 218, and then to the cable substrate 208. It is connected to the ground line 209b. Therefore, there was a problem that it was difficult to secure a sufficient number of poles for grounding due to restrictions on the number of connector poles. If a sufficient number of poles is not secured for the ground, the resistance between the sensor ground board and the cable board will increase, and if the noise current is exposed to the electromagnetic wave environment and flows through the ground, the ground potential will fluctuate and image noise will occur. Can have occurred. [Disclosure of the Invention]
- an ultrasonic probe of the present invention includes: an ultrasonic element that transmits and receives an ultrasonic signal; and a signal line that transmits an electric signal to or from the ultrasonic element.
- An ultrasonic probe comprising: a ground line for supplying a ground potential to the ultrasonic element;
- the sensor signal board and the sensor ground board, the sensor signal board and the sensor ground board, and the signal line and the ground line, which are electrically connected to the ultrasonic element, are electrically connected to each other.
- the sensor ground substrate and the cable substrate are directly connected or connected via a relay ground substrate. .
- FIG. 1 is a cross-sectional view illustrating an example of the ultrasonic probe according to the first embodiment of the present invention.
- FIG. 2 is a cross-sectional view illustrating an example of an ultrasonic probe according to the second embodiment of the present invention.
- FIG. 3 is a cross-sectional view showing one example of an ultrasonic probe according to the third embodiment of the present invention.
- FIG. 4 is a development view of a sensor ground substrate in the ultrasonic probe according to the third embodiment.
- FIG. 5 is a cross-sectional view showing a conventional ultrasonic probe.
- the ultrasonic probe of the present invention in order to electrically connect the ultrasonic element and the ground line, a sensor ground substrate connected to the ultrasonic element, and a cable substrate connected to the ground line, Connected directly or via a relay ground board. Therefore, unlike when both are connected via a connector, it is possible to avoid an increase in resistance due to the restriction on the number of connector poles, and to reduce the ground resistance between the sensor ground board and the cable board. be able to. By reducing the ground resistance, it is possible to suppress a change in the ground potential caused by a noise current due to an external electromagnetic wave, to reduce the adverse effect on the received signal due to the change in the ground potential, and to prevent the occurrence of image noise.
- the sensor signal substrate is covered by the sensor ground substrate or the relay ground substrate.
- a connection portion between the sensor signal substrate and the cable substrate is covered with the sensor ground substrate or the relay ground substrate.
- the sensor signal substrate, the cable substrate, and at least a part of the connection portion thereof can be shielded by causing the sensor ground substrate or the relay ground substrate to function as a shield, Noise generation due to external electromagnetic waves can be suppressed, Electromagnetic wave durability of the ultrasonic probe can be improved.
- the ultrasonic probe it is preferable that at least a part of the ultrasonic element is covered with the sensor ground substrate or the relay ground substrate. According to this preferred example, the durability of the ultrasonic probe to electromagnetic waves can be increased.
- an ultrasonic transmitting / receiving surface of the ultrasonic element and further, an ultrasonic transmitting / receiving surface and a side peripheral surface are covered with the sensor ground substrate or the relay ground substrate.
- the sensor ground substrate or the relay ground substrate can function as an acoustic matching plate. In this case, it is not necessary to separately provide an acoustic matching plate, so that workability is improved.
- a plurality of grooves are formed in a portion of the sensor ground substrate or the relay ground substrate, which covers an ultrasonic transmission / reception surface of the ultrasonic element. It is also possible that the sound element is electrically divided into a plurality of transducers.
- FIG. 1 is a diagram illustrating an example of an ultrasonic probe according to the first embodiment of the present invention.
- the ultrasonic probe converts an electric signal into an ultrasonic wave, transmits the ultrasonic wave to a living body, receives a reflected wave from the living body, and converts the reflected wave into an electric signal. It has a cable section 101 for transmitting and receiving an electric signal to and from 0, and a connector section 102 for connecting the probe to the ultrasonic diagnostic apparatus main body.
- the sensor section 100 includes an ultrasonic element 103, a sensor signal board 104 electrically connected to the ultrasonic element 103, and a sensor ground board 105. It has. Further, an acoustic matching plate for efficiently transmitting and receiving ultrasonic waves may be provided on the ultrasonic transmitting and receiving surface of the ultrasonic element 103. Furthermore, an acoustic lens 107 for converging the ultrasonic waves and improving the resolution of the region of the living body of interest is provided on the ultrasonic transmitting and receiving surface of the ultrasonic element 103. A backing layer 106 for absorbing ultrasonic waves is disposed on the back surface of the ultrasonic element 103 (the surface opposite to the ultrasonic wave emitting surface).
- the ultrasonic element 103 a material having piezoelectric characteristics is used, and for example, a piezoelectric ceramic such as barium titanate is used.
- a signal electrode and a ground electrode made of a conductive material such as a metal are formed, and these electrodes, the sensor signal substrate 104, and the sensor ground substrate 104 are formed. 5 are electrically connected to each other.
- the arrangement of the two substrates is not particularly limited.For example, as shown in FIG. 1, the sensor signal substrate 104 is disposed so as to cover the entire back surface of the ultrasonic element 103.
- the sensor ground substrate 105 can be arranged so as to cover the entire surface of the ultrasonic transmitting and receiving surface of the ultrasonic element 103.
- a substrate in which a conductive layer is formed on the surface of an insulating substrate is used.
- the insulating substrate for example, a polymer material such as epoxy resin, polyimide, polyethylene terephthalate, polysulfone, polycarbonate, polyester, polystyrene, or polyphenylene sulfite is used.
- the conductive layer for example, a metal such as Ni, Cr, Au, Ag, Al, Cu, or Ti is used.
- the thickness of the conductive layer is not particularly limited, but is, for example, 30 m or less. This conductive layer is patterned into a predetermined shape, and is electrically connected to the signal electrode of the ultrasonic element.
- the acoustic matching function is used as the sensor ground substrate 105. If a material having the following is used, this sensor ground substrate 105 can function as an acoustic matching plate. In this case, the amount of material to be laminated between the ultrasonic element and the acoustic lens can be reduced, or there is no need to separately provide an acoustic matching plate, so that an acoustic material such as an adhesive between the sensor ground substrate and the acoustic matching plate is used. Inconsistency can be suppressed, and the manufacture of the ultrasonic probe becomes easy.
- Materials having such an acoustic matching function include, for example, polymer materials such as epoxy resin, polyimide, polyethylene terephthalate, polysulfone, polycarbonate, polyester, polystyrene, and polyphenylene sulfite; , A u, Ag, A 1, Cu, Ti or other metallic material formed on the surface of a piezoelectric plate with a thickness of, for example, 30 m or less, or a conductive plastic that has a conductive property in the material itself And materials made of graphite.
- polymer materials such as epoxy resin, polyimide, polyethylene terephthalate, polysulfone, polycarbonate, polyester, polystyrene, and polyphenylene sulfite
- materials made of graphite
- the conductive layer 105b (or the substrate when a conductive substrate is used) of the sensor ground substrate 105 is electrically connected to the ground electrode of the ultrasonic element 103.
- This connection can be made, for example, via solder and conductive adhesive, as in the conductive layer of the sensor signal board 104, or by mechanical contact. Is realized.
- the sensor ground substrate 105 is preferably disposed so as to cover at least a part of the sensor signal substrate 104.
- the conductive layer 105 b of the sensor ground substrate 105 functions as a shield plate, and shields at least a part of the sensor signal substrate 104, thereby improving electromagnetic wave durability. I do.
- the sensor signal board 104 and the sensor ground board 105 are pulled out of the ultrasonic element 103 in the same direction (in the example of FIG. 1, the ultrasonic element To the left). In the example shown in FIG.
- the ultrasonic element 103 and the conductive portion 105 a of the sensor ground substrate 105 are directly connected, but a conductive material such as graphite A plate or the like may be provided.
- the sensor ground substrate 105 is connected to the entire surface of the ultrasonic transmitting and receiving surface of the ultrasonic element 103, but is not limited thereto. 3 may be connected only to the end.
- the connection between the ultrasonic element 103 and the sensor signal board 104 may be directly connected or may be connected via a conductive material.
- the cable section 101 a plurality of signal lines 109 are covered with a cable shield 110 and further protected by a sheath 111. Further, the cable section 101 includes a cable board 108 for connecting the signal line 109 to the sensor signal board 104 and the sensor ground board 105.
- the signal line 109 transmits an electric signal transmitted from an ultrasonic diagnostic apparatus main body (not shown) that performs various ultrasonic signal processings to a sensor unit, or converts an ultrasonic wave including biological information into an electric signal.
- the signal line 109 is preferably a signal line having a coaxial structure in which a center copper wire is surrounded by an internal shield member such as a metal braided wire.
- the plurality of signal lines 109 are bundled and protected by a sheath 111.
- the sheath 111 for example, an insulating material such as vinyl chloride and silicone can be used.
- a cable shield 110 made of, for example, a metal braided wire or a metal foil, for the purpose of shielding from external electromagnetic waves and radiating the electromagnetic waves is disposed between the signal line 109 and the sheath 111. Is preferred.
- the signal line 109 is connected to the cable substrate 108.
- the cable substrate 108 similarly to the sensor signal substrate 104, a substrate in which a conductive layer is formed on an insulating substrate surface can be used. Further, an electronic circuit may be mounted on the cable substrate 108.
- the conductive layer of the cable substrate 108 is patterned into a predetermined shape, thereby forming a signal pattern and a dummy pattern.
- the signal pattern of the cable substrate 108 is electrically connected to the signal line of the signal line, and the ground pattern is electrically connected to the ground line.
- the signal pattern of the cable board 108 is electrically connected to the conductive layer of the sensor signal board 104.
- the connection between the cable board 108 and the sensor signal board 104 can be realized by, for example, wire bonding, heat bonding between boards, or a card edge connector or other connectors. .
- the ground pattern of the cable substrate 108 is electrically connected to the conductive layer 105 b of the sensor ground substrate 105.
- the connection between the ground pattern of the cable board 108 and the conductive layer 105 b of the sensor ground board 105 is realized via the relay ground board 112.
- the relay ground substrate 1 1 for example, copper wire, copper
- a conductive substrate such as a metal substrate such as a foil film can be used.
- the dimensions of the relay ground board 112 are not particularly limited. In order to further reduce the ground resistance-.
- the ground pattern of the cable board 108 and the conductive layer 1 of the sensor ground board 105 It is preferable that the cross-sectional area is large and the distance is short between 0 and 5b. If there are a plurality of cable boards 108, the relay ground boards 112 connected to the respective cable boards 108 may be connected to the sensor ground board 105.
- the relay ground substrate 112 is connected to the conductive layer 105b of the sensor ground substrate 105. At this time, it is preferable to bend the drawn-out end of the sensor ground substrate 105 (the portion to be connected to the relay ground substrate 112). Further, it is preferable to bend about 180 °. This is because the conductive layer 105b of the sensor ground substrate 105 can be exposed to the outside, and the connection between the conductive layer 105b and the relay ground substrate 112 is facilitated. In addition, it is preferable that the connection area between the relay ground substrate 112 and the conductive layer 105 b of the sensor ground substrate 105 be as large as possible because the ground resistance is reduced.
- the relay ground substrate 112 is connected to the ground pattern of the cable substrate 108. At this time, as shown in FIG. 1, it is preferable that the connection be made so that the relay ground substrate 112 covers the connection between the sensor signal substrate 104 and the cable substrate 108. With such an arrangement, the relay ground substrate 112 functions as a shield plate, and shields the connection between the sensor signal substrate 104 and the cable substrate 108, thereby improving electromagnetic wave durability. . As a result, no shield plate is required, the manufacture of the ultrasonic probe is facilitated, and the size of the housing can be reduced. In addition, the ground pattern of the relay ground board 1 1 2 and the cable board 108 The connection area is preferably as large as possible because the ground resistance is reduced.
- the connector section 102 includes a main body connection connector 115 and pins 116 to which the signal line 109 a and the ground line 109 b are individually connected. 3 housed.
- the connector housing 113 can be made of, for example, metal, resin, or the like, and has an inner wall provided with a conductive layer 114 of metal or the like.
- the cable shield 110 is connected to the metal part on the outer periphery of the connector for body connection insulated from the pins or the conductor layer 114 on the inner surface of the connector housing 113, and is connected to the main body of the ultrasonic diagnostic apparatus. When connected, it is connected to the frame ground or signal ground of the ultrasonic diagnostic equipment.
- the conductive layer 105 b of 105 and the ground pattern of the cable board 108 are connected via the relay ground board 112. Therefore, unlike the case where both are connected via a connector, it is possible to avoid an increase in resistance due to the restriction on the number of connector poles, so that the distance between the sensor ground substrate 105 and the cable substrate 108 is not increased. Ground resistance can be reduced. Further, since the reduction of the ground resistance can suppress the change in the ground potential caused by the noise current due to the external electromagnetic, the adverse effect on the received signal due to the change in the ground potential can be reduced, and the occurrence of image noise can be reduced. It can prevent and provide a high quality ultrasonic image.
- connection between the cable section 101 and the sensor section 100 is made by the connection section between the cable board 108 and the sensor signal board 104, the cable board 108 and the sensor ground board 105. At least in these two locations. Therefore, the connection strength between the cable section 101 and the sensor section 100 is The effect of improving is also obtained.
- the relay ground substrate 112 since the relay ground substrate 112 is used, even if a tensile stress is applied between the cable substrate 108 and the sensor signal substrate 104, the sensor signal substrate 1 is not affected by the tension of the relay ground substrate 112. Disconnection due to separation of the connection portion of the cable board 108 and the cable board 108 can be prevented.
- the conductive layer of the sensor ground substrate and the ground pattern of the cable substrate were connected via the relay brand substrate.
- the two may be directly connected without the intermediary of the relay dummy substrate. Such an embodiment will be described below.
- FIG. 2 is a schematic cross-sectional view illustrating an example of an ultrasonic probe according to the second embodiment of the present invention.
- This ultrasonic probe has a sensor unit 100, a cable unit 101, and a connector unit 102, as in the first embodiment.
- each member constituting the sensor unit 100 is substantially the same as those in the first embodiment.
- the sensor ground substrate 105 is pulled out from both sides of the ultrasonic element 103, it is possible to reliably cover the entire ultrasonic transmitting / receiving surface. Therefore, the effect obtained by using a material having an acoustic matching function as the sensor ground substrate 105 is large.
- the cable section 101 includes a plurality of signal lines 109 including a signal line 109 a and a ground line 109 b, a series 111, and a signal pattern. And a cable substrate 108 including a ground pattern.
- two cable boards 108 are used, each of which is a sensor signal board 104 and a sensor ground board 1 which are drawn out on both sides of the ultrasonic element 103. 0 5 are connected to both drawers.
- the signal pattern of the cable board 108 is electrically connected to the signal line 109 a of the signal line and the sensor signal board 104 of the sensor section. These connections are the same as in the first embodiment.
- the ground pattern of the cable substrate 108 is electrically connected to the ground line 109 b of the signal line and the sensor ground substrate 105.
- the ground pattern of the cable substrate 108 and the conductive layer 105 b of the sensor ground substrate 105 are directly connected by, for example, solder.
- the cable board 10 5 is so arranged that the sensor ground board 105 covers at least a part of the connection between the sensor signal board 104 and the cable board 108. 8 and the sensor ground substrate 105 are preferably connected.
- the sensor ground substrate 105 serves as a shield plate. It functions and shields the connection between the sensor signal board 104 and the cable board 108, so that the electromagnetic wave durability is improved.
- connection area between the sensor ground substrate 105 and the daland pattern of the cable substrate 108 is preferably as large as possible, since the daland resistance can be further reduced.
- the material and structure of each of the members constituting the cable portion 101 are substantially the same as those in the first embodiment.
- the structure of the connector 102 is substantially the same as that of the first embodiment, and the description thereof is omitted.
- both sides of the ultrasonic element can be covered by the sensor ground substrate, and electromagnetic wave durability is improved.
- the structure is drawn out from both sides, as shown in Fig. 2, the entire connection between the cable substrate 108 and the sensor signal substrate 104 can be covered with the sensor ground substrate 105. Therefore, the connection portion can be shielded by the sensor ground substrate 105, and the electromagnetic wave durability is improved. As a result, a shield plate is not required, and the manufacture of the ultrasonic probe is facilitated, and the size of the housing can be reduced, which is preferable.
- the sensor ground substrate 105 and the cable substrate 108 are directly connected. Therefore, similarly to the first embodiment, unlike the case where both are connected via a connector, it is possible to avoid an increase in resistance due to the restriction on the number of connector poles. To reduce the ground resistance between the It is possible to provide a high-quality ultrasonic image by suppressing a change in durand potential caused by the above.
- the number of connection points by solder or the like can be reduced as compared with the first embodiment using the relay ground substrate. Therefore, the workability of fabrication is good, and thermal damage due to soldering to the cable and sensor can be suppressed.
- connection between the cable section and the sensor section is realized at at least these two places: the connection section between the cable board and the sensor signal board, and the connection section between the cable board and the sensor ground board. Therefore, the effect of improving the connection strength between the cable section and the sensor section can be obtained.
- the sensor land substrate can function as a shield.
- the sensor ground substrate functions as a shield, so that it is not necessary to provide a separate shield plate, and thus the above-described problem can be solved.
- the shielding effect of the sensor ground substrate is particularly enhanced will be described.
- FIG. 3 is a schematic perspective view showing an example of an ultrasonic probe according to the third embodiment of the present invention.
- This ultrasonic probe has a structure substantially similar to that of the second embodiment except that the shape of the sensor ground substrate 105 is different. Therefore, here, the shape of the sensor ground substrate 105 will be described in detail.
- the sensor unit includes an ultrasonic element 103, a sensor signal board 104 connected to the ultrasonic element 103, and a sensor ground board 105.
- Numeral 04 is arranged so as to cover the entire rear surface of the ultrasonic element 103, and is drawn out from both side surfaces of the ultrasonic element 103.
- the sensor ground substrate 105 is disposed so as to cover the entire surface of the ultrasonic transmitting and receiving surface of the ultrasonic element 103, and, like the sensor signal substrate 104, both side surfaces of the ultrasonic element 103. Has been pulled out from the side. Further, as shown in FIG. 3, the sensor ground substrate 105 is provided on a side surface other than the side from which the sensor signal substrate 104 is extended, that is, on the side surface on which the sensor signal substrate 104 is extended. It has a shape that also covers adjacent side surfaces. As a result, the shielding effect of the sensor ground substrate 105 on the ultrasonic element 103 can be further increased.
- the cable portion includes a plurality of signal lines 109 including signal lines and ground lines, a sheath 111, and a cable substrate 108 including signal patterns and ground patterns.
- a cable substrate 108 including signal patterns and ground patterns.
- two cable boards 108 are used, each of which has a sensor signal board 104 and a sensor ground board 1 drawn out on both sides of the ultrasonic element 103. 05 are connected to both drawers.
- the ground pattern of the cable board 108 is electrically connected to the ground line of the signal line 109 and the sensor ground board 105.
- the cable board 108 and the sensor board are arranged so that the sensor ground board 105 covers the entire connection portion between the sensor signal board 104 and the cable board 108.
- FIG. 4 is a development view of the sensor ground substrate 105.
- the sensor ground substrate 105 has a shape in which a surface covering the ultrasonic transmitting / receiving surface of the ultrasonic element is a bottom surface, and side surfaces are connected to four sides of the bottom surface, respectively. I have.
- the hatched portion in FIG. 4 indicates a connection portion with the cable substrate.
- a plurality of grooves 105c are formed in the bottom surface portion of the sensor ground substrate.
- This groove is formed to electrically divide the ultrasonic element into a plurality of transducers.
- This groove weakens the mechanical coupling with the adjacent transducer, or reduces the mechanical vibration of the transducer. By increasing independence, crosstalk can be improved and the directional angle can be increased.
- the groove is usually filled with an insulating material such as epoxy or silicone, and the softer one has a higher effect of increasing the independence of the oscillator.
- the side surface portion of the sensor ground substrate 105 is arranged so as to surround the ultrasonic element 103, the sensor signal substrate 104, and the cable substrate 108 (squares). At this time, of the side surfaces of the sensor ground substrate 105, the side from which the sensor signal substrate 104 of the ultrasonic element 103 is pulled out is located. It is preferable that the portion pulled out to the outer side surface (the side surface of the cable substrate 108) be connected to the cable substrate 108 or another side surface portion of the sensor ground substrate 105 by a solder or the like. . This is because the shape of the sensor ground substrate 105 can be maintained.
- the sensor ground substrate 105 is disposed so as to surround the ultrasonic element 103, the sensor signal substrate 104, and the cable substrate 108, the sensor Since the shielding effect on the ultrasonic element 103, the sensor signal board 104, the cable board 108, and their connection parts by the ground board 105 is enhanced, the electromagnetic wave durability is improved, Noise current due to intrusion of electromagnetic waves can be reduced. As a result, since it is not necessary to separately provide a shield plate, it is easy to manufacture the ultrasonic probe, and the size of the housing can be reduced.
- the ultrasonic probe of the present invention can reduce the ground resistance between the sensor ground substrate and the cable substrate, it suppresses a change in ground potential caused by noise current due to extraneous electromagnetic waves. It is possible to reduce the adverse effect on the received signal due to the potential change and to prevent noise from being generated on the ultrasonic diagnostic image. Therefore, it is effective for application to an ultrasonic diagnostic apparatus used in various medical fields.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/550,835 US7648459B2 (en) | 2003-03-25 | 2004-03-24 | Ultrasonic probe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003083489A JP4376533B2 (ja) | 2003-03-25 | 2003-03-25 | 超音波探触子 |
JP2003-083489 | 2003-03-25 |
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WO2004084734A1 true WO2004084734A1 (ja) | 2004-10-07 |
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PCT/JP2004/004045 WO2004084734A1 (ja) | 2003-03-25 | 2004-03-24 | 超音波探触子 |
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US (1) | US7648459B2 (ja) |
JP (1) | JP4376533B2 (ja) |
CN (1) | CN100484478C (ja) |
WO (1) | WO2004084734A1 (ja) |
Cited By (1)
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US8517949B2 (en) | 2011-05-13 | 2013-08-27 | Olympus Medical Systems Corp. | Ultrasound transducer unit and ultrasound endoscope |
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US7521634B2 (en) * | 2006-05-19 | 2009-04-21 | Tektronix, Inc. | Multi-Channel signal acquisition probe |
JP2008246075A (ja) * | 2007-03-30 | 2008-10-16 | Fujifilm Corp | 超音波プローブ及びその製造方法、並びに、超音波診断装置 |
AU2009257370B2 (en) * | 2008-06-14 | 2015-01-22 | Auris Health, Inc. | System and method for delivering energy to tissue |
JP5540870B2 (ja) | 2010-04-27 | 2014-07-02 | セイコーエプソン株式会社 | 超音波センサー、及び電子機器 |
JP6353768B2 (ja) * | 2014-11-14 | 2018-07-04 | 富士フイルム株式会社 | プローブ及び光音響計測装置 |
JP6590601B2 (ja) * | 2015-09-04 | 2019-10-16 | キヤノン株式会社 | トランスデューサユニット、トランスデューサユニットを備えた音響波用プローブ、音響波用プローブを備えた光音響装置 |
JP6939219B2 (ja) * | 2017-08-03 | 2021-09-22 | セイコーエプソン株式会社 | 超音波装置 |
KR20200120062A (ko) * | 2019-04-11 | 2020-10-21 | 삼성메디슨 주식회사 | 초음파 프로브 및 이를 포함하는 초음파 영상장치 |
JP2021057751A (ja) * | 2019-09-30 | 2021-04-08 | セイコーエプソン株式会社 | 超音波装置、及び超音波装置の製造方法 |
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US8517949B2 (en) | 2011-05-13 | 2013-08-27 | Olympus Medical Systems Corp. | Ultrasound transducer unit and ultrasound endoscope |
Also Published As
Publication number | Publication date |
---|---|
JP2004290273A (ja) | 2004-10-21 |
CN1816305A (zh) | 2006-08-09 |
US20060241467A1 (en) | 2006-10-26 |
CN100484478C (zh) | 2009-05-06 |
US7648459B2 (en) | 2010-01-19 |
JP4376533B2 (ja) | 2009-12-02 |
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