WO2008064536A1 - Dispositif thérapeutique ultrasonore permettant un transmission multipoint - Google Patents

Dispositif thérapeutique ultrasonore permettant un transmission multipoint Download PDF

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Publication number
WO2008064536A1
WO2008064536A1 PCT/CN2007/000511 CN2007000511W WO2008064536A1 WO 2008064536 A1 WO2008064536 A1 WO 2008064536A1 CN 2007000511 W CN2007000511 W CN 2007000511W WO 2008064536 A1 WO2008064536 A1 WO 2008064536A1
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WO
WIPO (PCT)
Prior art keywords
template
ultrasonic
treatment apparatus
ultrasonic treatment
point emission
Prior art date
Application number
PCT/CN2007/000511
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English (en)
French (fr)
Inventor
Chunyan Zhang
Wenzhi Chen
Siyuan Yan
Original Assignee
Chongqing Ronghai Medical Ultrasound Industry Ltd.
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Publication date
Priority to US12/515,830 priority Critical patent/US20100056925A1/en
Application filed by Chongqing Ronghai Medical Ultrasound Industry Ltd. filed Critical Chongqing Ronghai Medical Ultrasound Industry Ltd.
Priority to CA2670923A priority patent/CA2670923C/en
Priority to JP2009537468A priority patent/JP2010510816A/ja
Priority to EP07710936A priority patent/EP2085119A4/en
Publication of WO2008064536A1 publication Critical patent/WO2008064536A1/zh

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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
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A61B2018/00023—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids closed, i.e. without wound contact by the fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N7/00—Ultrasound therapy
    • A61N2007/0004—Applications of ultrasound therapy
    • A61N2007/0013—Fracture healing
    • 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
    • A61N2007/006—Lenses
    • 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
    • A61N7/02—Localised ultrasound hyperthermia
    • A61N2007/027—Localised ultrasound hyperthermia with multiple foci created simultaneously

Definitions

  • the invention belongs to the technical field of medical instruments and relates to a multi-point emission ultrasonic treatment device. Background technique
  • ultrasound has been widely used in medical imaging detection and non-invasive treatment. It has been found through experiments that in addition to the thermal effect, low-energy ultrasonic waves in a certain frequency band have mechanical effects and biochemical effects. In particular, experimental studies in recent years have proved that the biochemical effects of ultrasound can not be ignored, such as affecting the activity of enzymes, accelerating cell metabolism, stimulating the synthesis of human fibroblasts, especially low-intensity pulsed ultrasound and cytokines to promote bone marrow mesenchyme. Stem cells differentiate into articular cartilage and play an important role in the healing of cartilage damage. Therefore, such ultrasound can be used to treat and accelerate the recovery of soft tissue damage, promote bone tissue growth, relieve and cure neuropathic pain. Low-intensity pulsed ultrasound is harmless to the human body as a means of painless and non-invasive treatment, and therefore has broad application prospects.
  • a multi-point emission low-energy ultrasonic treatment device such as the device disclosed in Japanese Patent No. 2004-81645A, has a single treatment unit that does not have a focusing function, and each ultrasonic wave emitted is parallel, which is theoretically possible to make it A certain area of coverage forms "focus", but the divergence of the plane ultrasonic waves and the mutual interference make the "focusing" not proceed according to the preset, and the energy accumulation of different intensities is formed on the acoustic path, not only does not reach To the therapeutic effect, it is possible to damage the disease-free area. At the same time, the energy generated by the device is not able to rapidly promote tissue growth and relieve pain. In order to achieve therapeutic dose during treatment, multiple ultrasonic coverage is required through peripheral devices, which is difficult to operate and is not easy. It is quickly mastered by non-professionals, and there is a danger of over-concentration and burns. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a simple structure, good focusing, and enable ultrasonic energy to be emitted according to a predetermined route, in view of the above-mentioned deficiencies in the prior art. And a low-energy ultrasonic treatment device with multi-point emission with high ultrasonic energy utilization rate.
  • the multi-point transmitting ultrasonic therapeutic apparatus comprises a template having an ultrasonic transducer array on the template, wherein each ultrasonic transducer in the ultrasonic transducer array adopts individual focusing Ultrasonic transducer.
  • each of the ultrasonic transducers preferably includes a piezoelectric wafer and a focusing lens, the focusing lens is fixed in a predetermined hole of the template, and the piezoelectric wafer is connected to the focusing lens through a fixing unit.
  • the focusing lens uses an acoustic lens made of an ultrasonic coupling material to constitute an acoustic path for ultrasonic propagation.
  • the fixing unit may employ a clip that fixes the piezoelectric wafer to a predetermined hole in the template, and the focus lens is also fixed to the template by the clip.
  • the ultrasonic transducer can also take other forms as long as each ultrasonic transducer can be individually focused.
  • the template can adopt an elastic template, and the elastic template can ensure that the predetermined shape can be quickly restored after a large amount of deformation, and it also has a certain rigidity to ensure ultrasonic transduction.
  • the array and its connection are reliable and not easy to fall off. Therefore, the elastic template can better adapt to the change of the treatment site, and can also achieve the concentration of the energy emitted by the plurality of ultrasonic transducers by changing the shape of the elastic template according to the severity of the disease, thereby changing the degree of bending.
  • the purpose of dispersion is used to improve the shape of the elastic template according to the severity of the disease.
  • the ultrasonic wave emitted by each ceramic transducer in the prior art is emitted from the entire ceramic plane, and the sound field is diverged. Since the energy propagated on the surface perpendicular to the surface of the transducer is the strongest and strongest, therefore, Think of it as a parallel sound wave. However, in addition to the sound waves in this direction, the ultrasonic waves also have a certain amount of scattering. The scattered ultrasonic waves emitted by multiple emitters will interfere with other ultrasonic waves when they are transmitted in the medium, affecting the ultrasonic waves according to the preset linear direction. Conduct energy transmission.
  • each single ultrasonic transducer in the ultrasonic treatment device of the present invention adopts a separate focusing mode, and the sound fields formed between the ultrasonic transducers do not interfere with each other, so that the ultrasonic energy can be emitted according to a predetermined route, and therefore, no other is needed. Additional manipulations can achieve therapeutic results.
  • the outer package is also fixed under the template, and the outer package has a heat dissipation unit for helping the ultrasonic transducers to dissipate heat.
  • the outer package has corresponding holes corresponding to the preset holes on the template, and each ultrasonic transducer sequentially passes through the preset holes on the template and the corresponding holes on the outer package.
  • the heat dissipating unit is a flexible bladder closely attached to each ultrasonic transducer, and the flexible bladder has a heat dissipating substance therein.
  • the flexible bladder is soft and tough, and it is well attached to the ultrasonic transducer, so that the heat generated by the ultrasonic transducer is quickly taken away.
  • the template and the outer wrap may be designed in different shapes depending on the treatment of the lesion, such as a ribbon, a cuff, a cap, or the like.
  • the array hole positions pre-set on the template and the outer package may be circular, rectangular, regular polygon, etc., and may be selected according to the structure of the ultrasonic transducer.
  • the two ends of the template or the outer package may be respectively connected with a strap for fixing the elastic template.
  • the two straps can each have a squeezing elastic band with a small number of burrs and a small burr.
  • Embodiment 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Figure 2 is a top view of the elastic template 5 of Figure 1.
  • Figure 3 is a partial enlarged view of the single ultrasonic transducer and clip 6 of Figure 1.
  • Figure 4 is a front view of the structure of the upper part of the outer wrap 1 in Figure 1.
  • Figure 5 is a top view of Figure 4.
  • Embodiment 2 of the present invention is a schematic structural view of Embodiment 2 of the present invention.
  • the multi-point transmitting ultrasonic treatment device of the present embodiment comprises an elastic template 5 with a preset hole 9, and an outer wrapping 1 with a corresponding hole 8 corresponding to the predetermined hole 9 on the elastic template.
  • the outer wrap 1 is in direct contact with the patient's skin, it is made of a non-toxic outer wrap such as silicone rubber.
  • the elastic template 5 is fixed to the outer package 1 by bonding or the like.
  • the shape of the elastic template 5 is a rectangle, and the structure is suitable for the treatment of lesions in the limb site. Accordingly, the shape of the outer wrap 1 is also rectangular (as shown in Fig. 4).
  • the preset holes 9 on the elastic template and the corresponding holes 8 on the outer package can take various shapes, and can be selected according to the structural shape of each ultrasonic transducer in the ultrasonic transducer array.
  • each ultrasonic transducer can be selected as various types of focused ultrasonic transducers as needed. As shown in Fig. 3, in the present embodiment, each ultrasonic transducer is composed of a piezoelectric wafer 3 and a focus acoustic lens 4.
  • the focus acoustic lens 4 is an acoustic lens made of an ultrasonic coupling material, such as a sound-transmitting adhesive.
  • the lens not only functions to focus the piezoelectric wafer to emit ultrasonic waves but also constitutes an acoustic path for ultrasonic propagation.
  • the acoustic lens formed by the acoustic coupling material is made according to the principle of convex lens in which the acoustic propagation coefficient of the ultrasonic material is different from the externally applied acoustic coupling material and the coefficient in the human body, so that the piezoelectric wafer 3 emits parallel
  • the ultrasonic waves form a focus that sets the focal length.
  • the required piezoelectric wafer size is inversely proportional to the degree of focusing, the more intense the focusing, the smaller the size of the desired wafer, so the required wafer is required for the focusing form of the same region.
  • multiple such as: a ceramic wafer for a circle having a radius of 5mm, if the beam radius of whichever 0. lmm, the wafer 25 can be formed isoforms planar focal region wish 0. 5X0 5 2.
  • the piezoelectric wafer 3 is fixed to the predetermined holes 9 of the elastic template 5 and the corresponding holes 8 of the outer package 1 by the fixing unit, that is, the clip 6, and the focus acoustic lens 4 is also fixed to the elastic by the clip 6.
  • the clip 6 On the template 5, the clip 6 not only functions as a fixed ultrasonic transducer but also serves to fix the elastic template 5 to the outer package 1.
  • the heat dissipating unit adopts a flexible capsule 7, and the capsule is provided with a heat dissipating material such as thermal grease.
  • the flexible bladder 7 is soft and tough. As shown in Figs. 4 and 5, the flexible bladder 7 can be well fitted to the piezoelectric wafer 3 in the ultrasonic transducer through the corresponding hole 8 on the outer package, so that the ultrasonic transducer can be exchanged. The heat generated by the energy device was quickly taken away.
  • the strap for fixing the elastic template 5 is a bonded elastic band 2 having less burrs on one side of the bristles, which are respectively connected to both sides of the outer package 1.
  • the outer package has a signal line hole 11 through which the ultrasonic signal line 10 is connected to each piezoelectric wafer 3 (not shown in FIG. 1), and can be used to simultaneously drive all or part of the piezoelectric wafer as needed. 3 emits ultrasonic waves.
  • the entire treatment device is fixed to the lesion of the limb (e.g., the arm) by the elastic band 2 to treat the joint pain disease.
  • an excitation signal is supplied to the piezoelectric wafer 3 by the ultrasonic signal line 10.
  • the piezoelectric wafer 3 emits ultrasonic waves and is focused to a focus by the focus acoustic lens 4. Since a plurality of piezoelectric wafers 3 are simultaneously driven, a plurality of focal points are simultaneously formed.
  • the size of the ultrasonic excitation signal can be adjusted as needed to adjust the intensity of the ultrasonic wave, so that the therapeutic device of the present invention can quickly promote tissue growth. Relieve the purpose of joint pain.
  • the flexible bladder 7 absorbs the heat generated by the ultrasonic transducer and dissipates the heat. In this way, the individual ultrasonic transducers are protected, so that the ultrasonic transducer does not overheat and its performance is degraded or damaged, and on the other hand, the patient is protected from burning the skin due to overheating of the ultrasonic transducer.
  • the treatment device of the present invention is simple in operation and easy to grasp quickly for the operator.
  • the ultrasonic transducer adopts a multi-wafer array method in the shape of a strip or a disc-shaped structure, the focus of all the ultrasonic transducers is not concentrated to one point, so that the energy is not concentrated and appears to be opposite. The risk of tissue burns at the lesion.
  • Example 2
  • the difference between the embodiment and the embodiment 1 is that the elastic template 5 and the outer package 1 are circular in shape, and the ultrasonic treatment device of the structure is suitable for the treatment of the head and the like, and can be used for treatment. Head nerve pain and other diseases.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
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  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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  • Life Sciences & Earth Sciences (AREA)
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Description

一种多点发射的超声治疗装置 技术领域
本发明属于医疗器械技术领域， 涉及一种多点发射的超声治疗 装置。 背景技术
近年来， 超声波被广泛应用于医学成像检测和无创治疗。 通过 实验发现， 一定频段的低能超声波除具有热效应外， 还有机械效应， 生化效应。尤其近年来的实验研究证明， 超声波的生物化学效应是不 容忽视的， 如影响酶的活性， 加速细胞新陈代谢、 刺激人体成纤维细 胞合成等，特别是低强度脉冲超声协同细胞因子促进骨髓间充质干细 胞向关节软骨分化， 对软骨损伤的愈合具有重要作用， 因此这类超声 可应用于治疗和加快恢复软组织损伤、促进骨组织生长、缓解并治愈 神经性疼痛。低强度脉冲超声作为无痛无创治疗的手段对人体是无害 的， 因此有着广阔的应用前景。
目前多点发射的低能超声治疗设备，如日本专利 JP2004- 81645A 所揭露的设备， 其单个治疗单元不具备聚焦功能， 且所发射的每束超 声波都是平行的， 从理论上讲是可以使其覆盖的某一区域形成 "聚 焦" ， 但是平面超声波的发散性和相互之间的干扰， 使其 "聚焦"不 能按照预先设定的进行， 在声通路上形成不同强度的能量聚积， 不但 达不到治疗效果， 反而有可能损伤无病变区域。 同时， 该设备所产生 的能量微小不能起到快速促进组织生长、缓解疼痛的目的， 为了在进 行治疗时为达到治疗剂量， 需要通过外设装置来进行多重超声波覆 盖， 其实际操作困难， 不易于被非专业人员迅速掌握， 且存在覆盖过 于集中而出现烧伤的危险。 发明内容
本发明所要解决的技术问题是针对现有技术中的上述不足， 提 供一种结构简单、 聚焦性好、 能使超声波能量按照预定的途径发射、 且超声波能量利用率高的多点发射的低能超声治疗装置。
解决本发明技术问题所釆用的技术方案是该多点发射的超声治 疗装置包括模板， 模板上有超声换能器阵列， 其中， 超声换能器阵列 中的每个超声换能器采用单独聚焦的超声换能器。
从制作工艺的方便考虑， 所述各超声换能器优选包括有压电晶 片和聚焦透镜， 所述聚焦透镜固定在模板的预设孔内， 压电晶片通过 固定单元与聚焦透镜连接。其中， 聚焦透镜采用超声耦合材料制成的 声透镜， 从而构成超声传播的声途径。 所述固定单元可采用卡子， 卡 子将压电晶片固定到模板上的预设孔中，聚焦透镜也通过卡子固定到 模板上。
当然， 超声换能器也可以采用其他形式， 只要能实现各超声换 能器单独聚焦即可。
本发明中模板可釆用弹性模板， 弹性模板由于具有很好的弹性， 可保证在经过较大量的变形之后能迅速恢复预先设定的形状，同时它 还具有一定的刚性，以保证超声换能器阵列和它的连接可靠且不易脱 落。 因此， 弹性模板可以更好地适应治疗部位的变化， 同时还可以针 对病情的严重程度通过改变弹性模板的形状， 从而比较改变弯曲程 度， 就可以达到使多个超声换能器发射的能量集中或者分散的目的。
而现有技术中的每个陶瓷换能器发射出来的超声波是从整个陶 瓷平面向外进行发射， 声场发散， 由于在垂直于换能器表面的方 上 传播出的能量最大最强， 因此， 可以把它看作是平行声波。 但除了该 方向上的声波外， 超声波还会有一定量的散射， 多个发射器发射的散 射超声波在介质中传旙时会与其他的超声波之间产生干涉现象，影响 超声波按照预设的直线方向进行能量传播。而本发明超声治疗装置中 的各单个超声换能器采用单独聚焦模式，各个超声换能器之间形成的 声场互不干扰， 从而使超声波能量能够按照预定的途径进行发射， 因 此， 不需要其他额外的操作手法就能达到治疗效果。
优选的是， 模板下还可固定有外包裹， 外包裹内有帮助各超声 换能器散热的散热单元。所述外包裹上有与模板上的预设孔对应的对 应孔， 各超声换能器依次穿过模板上的预设孔及外包裹上的对应孔， 所述散热单元为紧贴各超声换能器的柔性囊， 柔性囊内有散热物质。 柔性囊柔软带有韧性， 能很好的贴在超声换能器上， 使超声换能器产 生的热量被迅速带走。
本发明中， 模板和外包裹可以根据治疗病灶的不同， 设计成不 同的形状， 比如设计成带状、 袖带状、 帽状等形状。 同时， 模板和外 包裹上所预先设置的阵列孔位可以是圆形的、 矩形的、 正多边形等， 具体可以根据超声换能器的结构进行选择。
为了方便该超声治疗装置固定于病灶处， 模板或外包裹上的两 端可分别连接一根固定弹性模板用的绑带。两根绑带可分别采用一根 毛刺多， 一根毛刺少的粘结型松紧带。 附图说明
图 1 为本发明实施例 1的结构示意图
图 2 为图 1中弹性模板 5的俯视图
图 3 为图 1中单个超声换能器和卡子 6的局部放大图
图 4 为图 1中外包裹 1上半部分的结构主视图
图 5 为图 4的俯视图
图 6 为本发明实施例 2的结构示意图
图中： 1-外包裹 2—松紧带 3—压电晶片 4一声透镜 5— 弹性模板 6—卡子 7—柔性囊 8—对应孔 9一预设孔 10—超 声信号线 11-信号线孔 具体实施方式
下面结合实施例和附图， 对本发明内容作进一步详细描述。 以下实施例为本发明的非限定性实施例。
实施例 1 :
如图 1 所示， 本实施例的多点发射的超声治疗装置包括带有预 设孔 9的弹性模板 5、带有与弹性模板上的预设孔 9相对应的对应孔 8的外包裹 1、 超声换能器阵列、 提供激励信号给超声换能器阵列的 超声信号线 10、 用于固定整个超声治疗装置到病灶处的松紧带 2。 由于外包裹 1 是和患者皮肤直接接触的， 所以采用无毒外包裹 如硅橡胶制成。 弹性模板 5通过粘结等方法固定在外包裹 1上。
如图 2所示， 本实施例中， 弹性模板 5的形状为长方形， 这种 结构形式适用于肢体部位病灶的治疗。相应地， 外包裹 1的形状也为 长方形（如图 4所示） 。 弹性模板上的预设孔 9以及外包裹上的对应 孔 8可采用各种形状，具体可以根据超声换能器阵列中各超声换能器 的结构形状进行选择。
超声换能器的类型可以根据需要选择各种规格的聚焦型超声换 能器。 如图 3所示， 本实施例中， 各超声换能器由压电晶片 3和聚焦 声透镜 4组成。
为了工艺上的制作方便， 聚焦声透镜 4 是采用超声耦合材料制 成的声透镜， 如透声胶。这样该透镜不但起到聚焦压电晶片发射超声 波的功能而且构成了超声传播的声通路。 声耦合材料所形成的声透 镜，是依据超声在这种材料中的声传播系数和外涂声耦合材料以及人 体中的系数不一样的凸透镜原理制成的，从而使得压电晶片 3发出的 平行超声波形成设定焦距的聚焦。
对压电晶片的选定， 由于所需压电晶片大小与聚焦程度成反比 例， 聚焦越强烈， 所需晶片的尺寸越小， 因此针对于同一个区域的聚 焦形态，所需的晶片也就越多，如：对于半径为 5mm的圆形陶瓷晶片， 若取其聚焦半径为 0. lmm,则 25个同种晶片就可形成 0. 5X0. 5謹 2的面 状聚焦区域。
通过固定单元， 即卡子 6将压电晶片 3固定到弹性模板 5上的 预设孔 9和外包裹 1 上的对应孔 8 的孔位中， 同时， 聚焦声透镜 4 也通过卡子 6固定到弹性模板 5上，所以卡子 6不但有固定超声换能 器的作用且同时起着将弹性模板 5固定到外包裹 1的作用。
在弹性模板 5下方、 外包裹 1 内有散热单元。 本实施例中， 散 热单元采用柔性囊 7， 囊内装有散热物质如导热硅脂。 柔性囊 7柔软 带有韧性， 如图 4、 5所示， 通过外包裹上的对应孔 8， 柔性囊 7能 很好的贴合在超声换能器中的压电晶片 3上，使超声换能器产生的热 量被迅速带走。 本实施例中， 固定弹性模板 5 用的绑带采用一边毛剌多一边毛 刺少的粘结型松紧带 2， 其分别连接在外包裹 1的两侧。
外包裹上有信号线孔 11， 超声信号线 10通过该信号线孔 11连 接到每个压电晶片 3上（图 1中未示出） ， 使用时可以根据需要同时 驱动所有或部分压电晶片 3发射超声波。
使用本实施例的超声治疗装置时， 利用松紧带 2 将整个治疗装 置固定到肢体（比如： 胳膊） 病灶处来治疗关节疼痛疾病。 接着利用 超声信号线 10提供激励信号给压电晶片 3， 压电晶片 3发射超声波， 并利用聚焦声透镜 4聚焦到一焦点， 由于同时驱动多个压电晶片 3， 则同时形成多个焦点， 只要晶片足够小， 就可以在病灶处形成线状、 片状的聚焦， 可以根据需要调节超声波激励信号的大小， 从而调节超 声波的强度， 使得本发明治疗装置能够快速的催进组织生长， 起到缓 解关节疼痛的目的。
在整个治疗过程中， 柔性囊 7 —直在吸收超声换能器所产生的 热量， 并将热量散发出去。 这样一方面保护了各个超声换能器， 使超 声换能器不会出现过热而使其性能降低或损坏，另一方面又保护了病 人， 使其不会因超声换能器过热而灼伤皮肤。
本发明治疗装置操作过程简单， 容易为对于操作人员所快速掌 握。 同时， 因本发明中超声换能器采用多晶片阵列方式， 形状为带状 或圆盘形结构， 所有超声换能器的焦点不会集中到一点上， 故不会出 现能量过于集中从而出现对病灶处组织烧伤的危险。 实施例 2:
如图 6所示， 本实施例与实施例 1 的区别在于弹性模板 5和外 包裹 1是外形采用圆形，这种结构形式的超声治疗装置适用于头部等 病灶的治疗， 可以用于治疗头部神经疼痛等疾病。
本实施例的其它结构及使用方法都与实施例 1相同。

Claims

权利要求书
1. 一种多点发射的超声治疗装置， 包括模板， 模板上有超声换 能器阵列，其特征在于超声换能器阵列中的每个超声换能器采用单独 聚焦的超声换能器。
2. 根据权利要求 1所述的多点发射的超声治疗装置， 其特征在 于每个超声换能器包括有压电晶片和聚焦透镜，所述聚焦透镜固定在 模板上的预设孔内， 压电晶片通过固定单元与聚焦透镜连接。
3. 根据权利要求 2所述的多点发射的超声治疗装置， 其特征在 于聚焦透镜采用超声耦合材料制成的声透镜。
4. 根据权利要求 2所述的多点发射的超声治疗装置， 其特征在 于所述固定单元采用卡子， 卡子将压电晶片固定到模板上的预设孔 中， 聚焦透镜也通过卡子固定到模板上。
5. 根据权利要求 1一 4之一所述的多点发射的超声治疗装置， 其特征在于所述模板采用弹性模板。
6. 根据权利要求 5所述的多点发射的超声治疗装置， 其特征在 于模板下固定有外包裹，外包裹内有帮助各超声换能器散热的散热单 元。
7. 根据权利要求 6所述的多点发射的超声治疗装置， 其特征在 于所述外包裹上有与模板上的预设孔对应的对应孔，各超声换能器依 次穿过模板上的预设孔及外包裹上的对应孔，所述散热单元为紧贴各 超声换能器的柔性囊， 柔性囊内有散热物质。
8. 根据权利要求 7所述的多点发射的超声治疗装置， 其特征在 于散热物质采用导热硅脂。
9. 根据权利要求 6所述的多点发射的超声治疗装置， 其特征在 于模板或外包裹的两端可分别连接一根固定模板用的绑带。
10. 根据权利要求 9所述的多点发射的超声治疗装置， 其特征 在于两绑带可采用一根毛刺多， 一根毛剌少的粘结型松紧带。
PCT/CN2007/000511 2006-11-28 2007-02-13 Dispositif thérapeutique ultrasonore permettant un transmission multipoint WO2008064536A1 (fr)

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CA2670923A CA2670923C (en) 2006-11-28 2007-02-13 An ultrasonic therapeutic device capable of multipoint transmitting
JP2009537468A JP2010510816A (ja) 2006-11-28 2007-02-13 多点に送波可能な超音波治療デバイス
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