CN1294881C - 减少相控阵聚焦超声系统中的次热点的系统 - Google Patents
减少相控阵聚焦超声系统中的次热点的系统 Download PDFInfo
- Publication number
- CN1294881C CN1294881C CNB018082653A CN01808265A CN1294881C CN 1294881 C CN1294881 C CN 1294881C CN B018082653 A CNB018082653 A CN B018082653A CN 01808265 A CN01808265 A CN 01808265A CN 1294881 C CN1294881 C CN 1294881C
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- China
- Prior art keywords
- frequency
- transducer
- drive signal
- controller
- respective drive
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000002604 ultrasonography Methods 0.000 title abstract description 11
- 238000002560 therapeutic procedure Methods 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims description 19
- 230000008859 change Effects 0.000 claims description 12
- 230000000737 periodic effect Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000001225 therapeutic effect Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000527 sonication Methods 0.000 abstract 1
- 230000017074 necrotic cell death Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 206010028980 Neoplasm Diseases 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 241000581364 Clinitrachus argentatus Species 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000008232 de-aerated water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- 229920002379 silicone rubber Polymers 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N7/02—Localised ultrasound hyperthermia
-
- 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
- A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
- A61B8/4494—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer characterised by the arrangement of the transducer elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0223—Driving circuits for generating signals continuous in time
- B06B1/0269—Driving circuits for generating signals continuous in time for generating multiple frequencies
- B06B1/0284—Driving circuits for generating signals continuous in time for generating multiple frequencies with consecutive, i.e. sequential generation, e.g. with frequency sweep
-
- 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
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
- G10K11/341—Circuits therefor
- G10K11/346—Circuits therefor using phase variation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N2007/0056—Beam shaping elements
- A61N2007/0065—Concave transducers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N2007/0073—Ultrasound therapy using multiple frequencies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N2007/0078—Ultrasound therapy with multiple treatment transducers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N2007/0086—Beam steering
- A61N2007/0095—Beam steering by modifying an excitation signal
Abstract
Description
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/556,095 US6419648B1 (en) | 2000-04-21 | 2000-04-21 | Systems and methods for reducing secondary hot spots in a phased array focused ultrasound system |
US09/556,095 | 2000-04-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1449261A CN1449261A (zh) | 2003-10-15 |
CN1294881C true CN1294881C (zh) | 2007-01-17 |
Family
ID=24219875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB018082653A Expired - Lifetime CN1294881C (zh) | 2000-04-21 | 2001-04-12 | 减少相控阵聚焦超声系统中的次热点的系统 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6419648B1 (zh) |
EP (1) | EP1274348B8 (zh) |
JP (1) | JP2004511268A (zh) |
CN (1) | CN1294881C (zh) |
AT (1) | ATE373988T1 (zh) |
AU (1) | AU2001250617A1 (zh) |
DE (1) | DE60130642T2 (zh) |
WO (1) | WO2001080708A2 (zh) |
Families Citing this family (244)
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- 2001-04-12 WO PCT/IL2001/000339 patent/WO2001080708A2/en active Search and Examination
- 2001-04-12 AT AT01923937T patent/ATE373988T1/de not_active IP Right Cessation
- 2001-04-12 CN CNB018082653A patent/CN1294881C/zh not_active Expired - Lifetime
- 2001-04-12 EP EP01923937A patent/EP1274348B8/en not_active Expired - Lifetime
- 2001-04-12 AU AU2001250617A patent/AU2001250617A1/en not_active Abandoned
- 2001-04-12 JP JP2001577814A patent/JP2004511268A/ja active Pending
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Also Published As
Publication number | Publication date |
---|---|
EP1274348A4 (en) | 2005-03-23 |
CN1449261A (zh) | 2003-10-15 |
EP1274348B1 (en) | 2007-09-26 |
EP1274348B8 (en) | 2007-11-21 |
US6419648B1 (en) | 2002-07-16 |
DE60130642T2 (de) | 2008-11-06 |
WO2001080708A3 (en) | 2002-03-14 |
DE60130642D1 (de) | 2007-11-08 |
ATE373988T1 (de) | 2007-10-15 |
WO2001080708A2 (en) | 2001-11-01 |
EP1274348A2 (en) | 2003-01-15 |
AU2001250617A1 (en) | 2001-11-07 |
JP2004511268A (ja) | 2004-04-15 |
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