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公开(公告)号：KR101730226B1
公开(公告)日：2017-04-26
申请号：KR1020140193802
申请日：2014-12-30
Applicant: 동국대학교 산학협력단
Abstract: 본발명의일 실시예로서, 혈관내 초음파 (IVUS) 변환자의제조방법및 그 IVUS 변환자가제공될수 있다. 본발명의일 실시예에따른방법은정합층, 압전소자, 흡음층을적층하여 IVUS 스택을생성하는단계, 절삭기기를이용하여 IVUS 스택중 흡음층의일부를제거하는서브다이싱단계, 서브다이싱을통하여생성된흡음층의치폭에비전도성물질을충전하는단계및 충전된비전도성물질의경화후, 절삭기기를이용하여소정의크기로다이싱하여적어도하나의단일소자 IVUS 스택을생성하는단계를포함할수 있다.
Abstract translation: 作为本发明的一个实施例，可以提供制造血管内超声（IVUS）换能器的方法及其IVUS换能器。 在根据本发明的一个实施例的方法是一个匹配层，压电装置，包括：层压一个声音发生IVUS栈，使用切割机，以除去IVUS堆的吸音层的一部分的副切割工序，子切割 在所得吸音层义齿宽度的步骤，并通过填充非导电材料，非导电材料填充固化后，通过使用外壳的切刀装载机预定尺寸可包括产生至少一个单元素IVUS叠层的步骤 有。
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公开(公告)号：KR1020160114215A
公开(公告)日：2016-10-05
申请号：KR1020150039971
申请日：2015-03-23
Applicant: 동국대학교 산학협력단
CPC classification number: C12N13/00
Abstract: 본발명은 100 내지 2000mT의고강도전자기장과 0.5 내지 2kHz, 80 내지 200dB의음파또는 100 내지 2000mT의고강도전자기장과 10 내지 2000kHz, 0.1 내지 100 mW/cm초음파를중간엽줄기세포또는성체줄기세포에처리하여, 중간엽줄기세포또는성체줄기세포를신경세포로분화시키는방법에관한것이다. 또한본 발명은상기방법으로분화된신경세포를포함하는조성물에관한것이다. 본발명에따른고강도자기장과음파또는초음파를함께이용한신경세포분화방법및 조성물은저주파수의고강도전자기장과음파또는초음파를이용하여성체줄기세포를신경세포로분화유도함으로써, 짧은시간의전자기장과음파또는초음파처리만으로신경세포나신경줄기세포를용이하게분화시키거나손상된신경의회복을향상시킬수 있다.
Abstract translation: 本发明涉及通过用高强度电磁场（100-2000mT）和声波（0.5-2kHz）处理间充质干细胞或成体干细胞来将间充质干细胞或成体干细胞分化成神经细胞的方法 ，80-200dB）或高强度电磁场（100-2000mT）和超声波（10-2000kHz，0.1-100mW / cm 2）。 另外，本发明涉及通过该方法分化的含有神经细胞的组合物。 根据本发明的使用高强度磁场与声波或超声波将神经细胞分化为神经细胞的方法和组成，通过使用低频高强度电磁感应诱导成体干细胞向神经细胞的分化 场和声波或超声波，从而通过仅在短时间内用电磁场和声波或超声波进行治疗便于分化成神经细胞或神经干细胞或改善受损神经的恢复。
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公开(公告)号：KR1020140038211A
公开(公告)日：2014-03-28
申请号：KR1020120104658
申请日：2012-09-20
Applicant: 동국대학교 산학협력단
Inventor： 정종섭
CPC classification number: H04R17/005 , A61B8/4483 , A61B8/461 , B06B1/0607 , B06B1/0688 , G01N29/24 , G10K9/122
Abstract: The present invention relates to an ultrasonic transducer using multiple piezoelectric elements, and the ultrasonic transducer includes a first piezoelectric element having a hollow at the center thereof, and a second piezoelectric element inserted into the hollow of the first piezoelectric element, wherein the first piezoelectric element projects ultrasonic waves to an object and the second piezoelectric element receives the ultrasonic waves reflected by the object, the first piezoelectric element and the second piezoelectric element being integrally formed, wherein the first piezoelectric element is a single crystal piezoelectric element or PZT, and the second piezoelectric element is a PVDF or P(VDF-TrFE) copolymer, and wherein the ultrasonic wave projected surfaces of the first and second piezoelectric elements are concavely formed inwards to have the same ultrasonic wave condensing point. According to the present invention, the ultrasonic transducer is a very useful invention in that a piezoelectric element for transmission of signals and a piezoelectric element for reception of signals are integrally formed such that ultrasonic wave projection surfaces of the integrally formed piezoelectric elements for transmission and reception of signals are concavely formed inwards, so that a deeper area of an object can be observed by increasing both a signal sensitivity and a bandwidth when a signal is transmitted and received, and an ultrasonic image having a high resolution can be provided.
Abstract translation: 本发明涉及使用多个压电元件的超声波换能器，超声波换能器包括在其中心具有中空的第一压电元件和插入第一压电元件的中空部的第二压电元件，其中第一压电元件 将超声波投射到物体，并且第二压电元件接收由物体反射的超声波，第一压电元件和第二压电元件整体形成，其中第一压电元件是单晶压电元件或PZT，第二压电元件是第二 压电元件是PVDF或P（VDF-TrFE）共聚物，并且其中第一和第二压电元件的超声波投影表面向内凹入地形成以具有相同的超声波聚光点。 根据本发明，超声波换能器是非常有用的发明，其特征在于，用于传输信号的压电元件和用于接收信号的压电元件被一体地形成，使得用于发送和接收的一体形成的压电元件的超声波投影表面 的信号向内凹入地形成，从而通过在发送和接收信号时增加信号灵敏度和带宽，可以观察到物体的较深区域，并且可以提供具有高分辨率的超声波图像。
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公开(公告)号：KR101840523B1
公开(公告)日：2018-05-04
申请号：KR1020150170822
申请日：2015-12-02
Applicant: 동국대학교 산학협력단
Abstract: 본발명은압전소자의분극역전을이용하여제조된혈관내 초음파변환자및 그제조방법에관한것으로, 더욱상세하게는제 1 압전소자와제 2 압전소자간의분극역전을통하여생성된역전층, 역전층의일면에접합된정합층및 역전층의타면에접합된흡음층을포함하고, 정합층에는제 1 압전소자와제 2 압전소자로부터발생될초음파빔의전부또는일부의차단을방지하기위하여신호선이소정의영역에부착되어있고, 역전층의위치와두께조절을통해고주파수광대역특성및 다중주파수고조파특성이동시에나타나는초음파변환자를개시한다.
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公开(公告)号：KR101622488B1
公开(公告)日：2016-05-18
申请号：KR1020140183143
申请日：2014-12-18
Applicant: 동국대학교 산학협력단
Abstract: 본발명은다중압전소자의분극역전및 두께비율조절을통한진단용배열형초음파변환자및 그제조방법에관한것으로, 더욱상세하게는다중압전소자의역전및 두께비율조절을통해각각고주파수광대역특성및 다중주파수고조파특성을갖도록제조가가능하며고주파수광대역특성을갖는경우단일압전소자구조대비약 1.5배증가된기본주파수와증가된 -6 dB 대역폭을갖는즉, 광대역폭을가질수 있는배열형초음파변환자및 그제조방법에관한것이다. 따라서이러한특성을통해초음파영상의해상도를향상시키는데유용하게사용될수 있다. 다중주파수고조파특성을갖는경우, 단일압전소자구조대비기본주파수성분이동등하면서도고조파주파수성분이크게향상되어초음파고조파영상구현에유용하며, 기본주파수와고조파주파수간의발생하는밸리를통해고조파주파수만을추출하기위한필터의적용이용이하다. 본발명은전술한특성을갖는각 소자들을순차적으로배열하여하나의배열형초음파변환자에서고주파수광대역및 다중주파수고조파특성과상기두 가지특성을동시에구동하기위한선택적사용이가능하도록제조하여진단목적에부합할수 있는특성을사용자가선택적으로조절할수 있다. 이러한배열형초음파변환자제조시 정밀절삭기의사용을최소화하고기존의일반적인초음파변환자제조방법과유사하게설계하여압전소자의손상및 제조공정에서의시간과비용을절감할수 있다.
Abstract translation: 本发明涉及一种用于通过偏振反转进行诊断并且调整多个压电元件的厚度比的阵列超声波换能器及其制造方法，更具体地，涉及一种阵列超声波换能器，其被制造为具有高的 频率宽带特性和多谐波特性，通过多个压电元件的反演和厚度比调整。 该传感器的基本频率与单个压电元件结构的频率相比提高了1.5倍，当传感器具有高频宽带特性时，传感器的频率提高了-6dB。 因此，由于特性，传感器容易提高超声图像的分辨率。 当具有多次谐波特性时，由于基本频率分量与单个压电元件结构的基本频率分量相同，因此谐振波频率分量大大提高，传感器可用于实现超声波的图像。 通过在基本频率和谐波频率之间产生的谷值，可以容易地应用仅提取谐波频率的滤波器。 制造本发明通过连续地布置具有上述特性的每个元件，选择性地用于在一个阵列超声换能器中具有高频宽带和多频谐波的两个特性，使得用户选择性地调整适于 诊断目的。 制造这样的阵列超声波换能器使得精确切割器的使用最小化，并且与现有的超声换能器的制造方法类似地设计方法，从而防止对压电元件的损坏，并且在制造过程中减少时间和成本。
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Patent Agency Ranking
公开(公告)号：KR101450095B1
公开(公告)日：2014-10-13
申请号：KR1020130091546
申请日：2013-08-01
Applicant: 동국대학교 산학협력단
CPC classification number: H04R1/323 , B06B1/06 , G01S3/801 , G10K9/122 , H04R2201/025 , H04R2430/01 , H04S7/303
Abstract: The present invention relates to an automatic volume control system using a real-time location tracking ultrasonic device, more particularly, to an automatic volume control system using a real-time location tracking ultrasonic device which has a real-time location tracking ultrasonic device which tracks a movement of listener using a phased arrayed ultrasonic sensor in real time, and controls a transmission direction of ultrasound-modulated voice signal by changing direction and angle of an ultrasonic speaker toward the listener. The ultrasonic speaker consists of a single or a plurality of piezoelectric devices, and the phased array ultrasonic sensor in the center, and the angle and direction can be changed by a motor driving unit. The volume of the ultrasonic speaker can be adjusted by a distance, measured by the phased array ultrasonic sensor, between the listener and speaker. According to the present invention, the audible area of voice signal outputted from the speaker can be automatically adjusted according to the location of the listener by tracking the location of the listener in real time, and the optimized audible state for the listener can be maintained by measuring the distance between the listener and speaker, and automatically providing the optimized volume.
Abstract translation: 本发明涉及一种使用实时位置跟踪超声波装置的自动音量控制系统，更具体地说，涉及一种使用实时定位跟踪超声波装置的自动音量控制系统，该实时位置跟踪超声波装置具有跟踪 实时使用相控阵超声波传感器的收听者的移动，并且通过改变超声波扬声器向收听者的方向和角度来控制超声调制语音信号的发送方向。 超声波扬声器由单个或多个压电装置构成，并且相控阵超声波传感器在中心，并且角度和方向可以由电动机驱动单元改变。 超声波扬声器的音量可以通过相控阵超声波传感器在收听者和扬声器之间的距离进行调节。 根据本发明，可以通过跟踪收听者的位置实时地根据收听者的位置自动地调节从扬声器输出的语音信号的可听区域，并且可以通过以下方式来保持听众的优化的可听状态： 测量听众和扬声器之间的距离，并自动提供优化的音量。
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公开(公告)号：KR1020140096642A
公开(公告)日：2014-08-06
申请号：KR1020130009447
申请日：2013-01-28
Applicant: 동국대학교 산학협력단
CPC classification number: H04R1/323 , B06B1/0207 , B06B1/06 , G10K9/122 , H01L41/09 , H04R1/10 , H04R2499/11
Abstract: The present invention relates to a small ultrasound device with acoustic directivity based on a piezoelectric element and, more particularly, to a small ultrasound device with acoustic directivity based on a piezoelectric element which comprises an acoustic signal modulation device to modulate an acoustic signal, which is output from an acoustic signal generator for outputting voice and music signals, to an ultrasound signal and to output the modulated signal; and an earphone having a piezoelectric element connected to the acoustic signal modulation device and focusing the acoustic signal on the inside of a user′s ear, wherein the center of the piezoelectric element of the earphone is recessed inward to have the same focusing point. According to the device of the present invention, high receiving sensitivity can be obtained with a minimum volume increase, and minimization of acoustic signals leaking to the outside, which is an advantage of a kernel type earphone, can be obtained while taking the form of an open earphone. The device of the present invention can be usefully used indoors and outdoors due to hearing loss prevention, high receiving sensitivity, and minimum ambient noise generation can be applied to a hands-free earphone for a mobile phone or a music earphone and a headphone.
Abstract translation: 本发明涉及一种基于压电元件的具有声学方向性的小型超声波装置，更具体地说，涉及一种基于压电元件的具有声学方向性的小型超声波装置，其包括用于调制声学信号的声学信号调制装置， 从用于输出语音和音乐信号的声信号发生器输出到超声信号并输出调制信号; 以及具有连接到声信号调制装置的压电元件并将声信号聚焦在用户耳朵的内部的耳机，其中耳机的压电元件的中心向内凹入以具有相同的聚焦点。 根据本发明的装置，可以以最小的体积增加获得高的接收灵敏度，并且可以获得作为内核型耳机的优点的泄漏到外部的声学信号的最小化，同时采取 开放式耳机 本发明的装置可以在室内和室外使用，由于听力损失的预防，高接收灵敏度和最小的环境噪声产生可以应用于用于移动电话或音乐耳机和耳机的免提耳机。
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公开(公告)号：KR1020130129553A
公开(公告)日：2013-11-29
申请号：KR1020120053524
申请日：2012-05-21
Applicant: 동국대학교 산학협력단
Inventor： 정종섭
CPC classification number: C12M47/04
Abstract: The present invention relates to a apparatus and a method for controlling a cell or a particle using frequency modulated ultrasound, which can prevent a stationary wave from occurring using ultrasound of a frequency modulated chirp signal and thereby effectively controlling a cell or a particle, and which can change or classify various cells and particles without physical and chemcial changes and thereby can be used diverse fields such as natural sicence and engineering. [Reference numerals] (110) Frequency modulation signal generator;(120) Window function generation unit;(130) Transmission beamformer;(140) Amplifier;(AA) Frequency modulator
Abstract translation: 本发明涉及一种使用频率调制超声控制电池或微粒的装置和方法，其可以使用频率调制啁啾信号的超声从而防止发生静止波，从而有效地控制电池或颗粒，以及哪些 可以改变或分类各种细胞和颗粒而没有物理和化学变化，从而可以使用各种领域，如自然界和工程。 （110）频率调制信号发生器;（120）窗函数生成单元;（130）发送波束形成器;（140）放大器;（AA）频率调制器
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