技术领域technical field
本实用新型涉及介入超声技术领域，特别是涉及一种互背向发射多声束超声组件。The utility model relates to the technical field of interventional ultrasound, in particular to an ultrasonic component emitting multiple sound beams in opposite directions.
背景技术Background technique
导管组织消融技术已广泛应用于临床，如心律失常、顽固性高血压等交感过度激活相关疾病的器械治疗中。射频消融导管在实现消融时，其原理是通过热传递的方式将射频能量产生大量热能，通过血管内膜逐步传递至血管外膜周围的组织，引起血管外面及外膜周围组织内的神经变性，这种方式不可避免地会对消融区域血管内皮产生损伤，并且已有研究发现，在长期随访中有患者出现血管狭窄的并发症。Catheter tissue ablation technology has been widely used clinically, such as arrhythmia, intractable hypertension and other diseases related to sympathetic hyperactivation. When the radiofrequency ablation catheter achieves ablation, the principle is to generate a large amount of heat energy through radiofrequency energy through heat transfer, and gradually transmit it to the tissue around the adventitia through the intima of the blood vessel, causing nerve degeneration outside the blood vessel and in the tissue around the adventitia. This method will inevitably cause damage to the vascular endothelium in the ablation area, and studies have found that some patients have complications of vascular stenosis during long-term follow-up.
超声能量具有良好的方向性和穿透性，与射频能量相比，超声消融使用的能量更低，能量传递不依赖于组织的传导，在治疗过程中可避免对血管内膜组织造成损伤，因此，超声能量可能是临床消融治疗领域理想的能量来源。Ultrasonic energy has good directionality and penetration. Compared with radiofrequency energy, ultrasonic ablation uses lower energy, energy transmission does not depend on tissue conduction, and can avoid damage to vascular intima tissue during treatment. , ultrasound energy may be an ideal energy source in the field of clinical ablation therapy.
目前超声换能器基本构造包括压电片、电极、背衬和匹配层，超声换能器通过背衬控制超声换能器频率和脉冲响应，同时控制超声换能器能量传播的单向性，由于超声换能器背衬多采用高阻尼、高衰减材料，入射到背衬的超声能量部分转换成热能造成能量损耗，这不但降低了超声换能器的电声转换效率，转化生成的热量在人体组织中还可造成不良的后果，如在血管中，过热的换能器表面可能对治疗区域的血管内膜造成损伤，将导致治疗对象发生远期血管狭窄甚至闭塞。又如在血液中，表面温度升高的超声元件将诱发血液凝固并凝聚于换能器表面，导致声能释放受阻，进一步降低了超声换能器的电声转化效率，甚至导致换能器损坏，同时表面血栓的形成增加了发生血栓栓塞的风险。专利WO 2011/130531A2、CN 102596320A中所使用超声换能器为采用背衬、单向发射超声，两专利对于产热的处理采用球囊包裹、盐水灌注冲洗等方法。US20130090578、US2013123670A1采用单片双向发射的方法增加超声发射的方向，但是存在换能器带宽窄、能量低、增加驱动电压时产热增加危及安全等缺点。WO2006/034000A1公开一种双压电片叠加的多向超声发射装置，但是单纯的多压电片叠加存在着中间层厚度不同时超声能量损失、压电片声学特性改变的可能，从而不能保证组合后的压电单元的声学稳定性。At present, the basic structure of an ultrasonic transducer includes a piezoelectric sheet, an electrode, a backing and a matching layer. The ultrasonic transducer controls the frequency and impulse response of the ultrasonic transducer through the backing, and at the same time controls the unidirectionality of the energy propagation of the ultrasonic transducer. Since the backing of the ultrasonic transducer is mostly made of high damping and high attenuation materials, part of the ultrasonic energy incident on the backing is converted into heat energy, resulting in energy loss, which not only reduces the electroacoustic conversion efficiency of the ultrasonic transducer, but also converts the generated heat in the Adverse consequences can also be caused in human tissues. For example, in blood vessels, the overheated transducer surface may cause damage to the intima of the blood vessels in the treatment area, which will lead to long-term vascular stenosis or even occlusion of the treated subjects. Another example is in the blood, the ultrasonic element whose surface temperature rises will induce blood coagulation and condense on the surface of the transducer, resulting in the obstruction of the release of acoustic energy, further reducing the electro-acoustic conversion efficiency of the ultrasonic transducer, and even causing damage to the transducer , while the formation of superficial thrombus increases the risk of thromboembolism. The ultrasonic transducers used in patents WO 2011/130531A2 and CN 102596320A are backed and unidirectionally emit ultrasound. The two patents use methods such as balloon wrapping and saline irrigation for heat production. US20130090578 and US2013123670A1 use a single-chip two-way emission method to increase the direction of ultrasonic emission, but there are disadvantages such as narrow bandwidth of the transducer, low energy, and increased heat generation when the driving voltage is increased, which endangers safety. WO2006/034000A1 discloses a multi-directional ultrasonic emission device with double piezoelectric sheets stacked, but the simple stacking of multiple piezoelectric sheets may cause loss of ultrasonic energy and changes in the acoustic properties of the piezoelectric sheets when the thickness of the intermediate layer is different, so that the combination cannot be guaranteed. Acoustic stability of the piezoelectric unit after.
实用新型内容Utility model content
(一)要解决的技术问题(1) Technical problems to be solved
本实用新型要解决的技术问题是如何减少声能损耗、提高电声转换率、节省安装空间和提高工作效率。The technical problem to be solved by the utility model is how to reduce sound energy loss, improve electroacoustic conversion rate, save installation space and improve work efficiency.
(二)技术方案(2) Technical solution
为了解决上述技术问题，本实用新型提供一种互背向发射多声束超声组件，其包括第一超声换能器和第二超声换能器，所述第一超声换能器的下表面和所述第二超声换能器的上表面均镀有金属镀层，所述第一超声换能器的上表面与所述第二超声换能器的下表面之间镀有一层共有的金属镀层；或者所述第一超声换能器和第二超声换能器的上下表面均镀有金属镀层，所述第一超声换能器的上表面的金属镀层与所述第二超声换能器的下表面的金属镀层之间设有背衬层；每层所述金属镀层的同一侧连接有金属带，每个所述金属带的尾端分别连接有与其同轴的电极线。In order to solve the above-mentioned technical problems, the utility model provides a multi-sound beam ultrasonic assembly that transmits back to each other, which includes a first ultrasonic transducer and a second ultrasonic transducer, the lower surface of the first ultrasonic transducer and the The upper surface of the second ultrasonic transducer is coated with a metal coating, and a common metal coating is coated between the upper surface of the first ultrasonic transducer and the lower surface of the second ultrasonic transducer; Or both the upper and lower surfaces of the first ultrasonic transducer and the second ultrasonic transducer are coated with a metal coating, and the metal coating on the upper surface of the first ultrasonic transducer is the same as the lower surface of the second ultrasonic transducer. A backing layer is provided between the metal plating layers on the surface; metal strips are connected to the same side of each layer of the metal plating layers, and the tail ends of each metal strip are respectively connected to coaxial electrode wires.
其中，所述金属带沿所述金属镀层的长度方向设置。Wherein, the metal strip is arranged along the length direction of the metal coating.
其中，所述金属镀层与所述金属带通过键合连接在一起。Wherein, the metal plating layer and the metal strip are connected together by bonding.
其中，所述第一超声换能器和第二超声换能器均为压电晶片。Wherein, both the first ultrasonic transducer and the second ultrasonic transducer are piezoelectric wafers.
其中，所述金属带的外表面和所述电极线的外表面均设有屏蔽层。Wherein, the outer surface of the metal strip and the outer surface of the electrode wire are both provided with a shielding layer.
其中，所述金属镀层优选为黄金镀层，所述金属带优选为黄金带。Wherein, the metal coating is preferably a gold coating, and the metal strip is preferably a gold strip.
其中，所述背衬层由吸声材料制成。Wherein, the backing layer is made of sound-absorbing material.
(三)有益效果(3) Beneficial effects
与现有技术相比，本实用新型具有以下优点：Compared with the prior art, the utility model has the following advantages:
本实用新型提供的一种互背向发射多声束超声组件，采用在第一超声换能器的下表面和第二超声换能器的上表面均镀有金属镀层，所述第一超声换能器的上表面与所述第二超声换能器的下表面之间镀有共有的金属镀层；或者所述第一超声换能器和第二超声换能器的上下表面均镀有金属镀层，所述第一超声换能器的上表面的金属镀层与所述第二超声换能器的下表面的金属镀层之间设有背衬层；从而可以实现第一超声换能器和第二超声换能器分别向两侧背向发射等强度超声束，达到减少声能损耗、提高电声转换率、节省安装空间和提高工作效率的效果。The utility model provides a multi-sound-beam ultrasonic assembly that transmits back to each other. The lower surface of the first ultrasonic transducer and the upper surface of the second ultrasonic transducer are coated with a metal coating, and the first ultrasonic transducer The upper surface of the transducer and the lower surface of the second ultrasonic transducer are coated with a common metal coating; or the upper and lower surfaces of the first ultrasonic transducer and the second ultrasonic transducer are coated with a metal coating , a backing layer is provided between the metal coating on the upper surface of the first ultrasonic transducer and the metal coating on the lower surface of the second ultrasonic transducer; thus the first ultrasonic transducer and the second The ultrasonic transducer emits equal-intensity ultrasonic beams back to both sides to achieve the effects of reducing sound energy loss, improving electro-acoustic conversion rate, saving installation space and improving work efficiency.
附图说明Description of drawings
图1为本实用新型一种实施例的结构示意图；Fig. 1 is the structural representation of a kind of embodiment of the utility model;
图2为本实用新型另一种实施例的结构示意图。Fig. 2 is a schematic structural view of another embodiment of the utility model.
图中：1：第一超声换能器；2：第二超声换能器；3：共有的金属镀层；4：金属带；5：电极线；6：背衬层；101：第一超声换能器下表面的金属镀层；102：第一超声换能器上表面的金属镀层；201：第二超声换能器上表面的金属镀层；202：第二超声换能器下表面的金属镀层。In the figure: 1: first ultrasonic transducer; 2: second ultrasonic transducer; 3: common metal plating; 4: metal strip; 5: electrode wire; 6: backing layer; 101: first ultrasonic transducer 102: the metal coating on the upper surface of the first ultrasonic transducer; 201: the metal coating on the upper surface of the second ultrasonic transducer; 202: the metal coating on the lower surface of the second ultrasonic transducer.
具体实施方式Detailed ways
下面结合附图和实施例，对本实用新型的具体实施方式作进一步详细描述。以下实例用于说明本实用新型，但不用来限制本实用新型的范围。Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.
在本实用新型的描述中，需要说明的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplified descriptions, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
在本实用新型的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本实用新型中的具体含义。In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.
实施例一Embodiment one
如图1所示，为本实用新型提供的一种互背向发射多声束超声组件，其包括第一超声换能器1和第二超声换能器2，所述第一超声换能器1和第二超声换能器2均为压电晶片，所述第一超声换能器1的下表面和所述第二超声换能器2的上表面均镀有金属镀层，所述第一超声换能器1的上表面与所述第二超声换能器2的下表面之间镀有一层共有的金属镀层3，构成背衬；每层所述金属镀层的同一侧连接有金属带4，每个所述金属带4的尾端分别连接有与其同轴的电极线5。当发射能量时，所述第一超声换能器1的上表面和第二超声换能器2的下表面能量互相抵消，从而可以保证所述第一超声换能器1的下表面与所述第二超声换能器2的上表面发射能量的一致性，提高能量转换效率，具有更少的能量损失，在发射能量时能更少地产生热量，减少热量积累带来的危险性。As shown in Figure 1, a kind of mutual back-to-back emission multi-beam ultrasonic assembly provided by the utility model includes a first ultrasonic transducer 1 and a second ultrasonic transducer 2, and the first ultrasonic transducer 1 and the second ultrasonic transducer 2 are piezoelectric wafers, the lower surface of the first ultrasonic transducer 1 and the upper surface of the second ultrasonic transducer 2 are coated with metal coating, the first A common metal coating 3 is plated between the upper surface of the ultrasonic transducer 1 and the lower surface of the second ultrasonic transducer 2 to form a backing; the same side of each layer of the metal coating is connected with a metal strip 4 Each tail end of the metal strip 4 is respectively connected with an electrode wire 5 coaxial therewith. When emitting energy, the energy of the upper surface of the first ultrasonic transducer 1 and the lower surface of the second ultrasonic transducer 2 cancel each other out, thereby ensuring that the lower surface of the first ultrasonic transducer 1 and the The consistency of the energy emitted from the upper surface of the second ultrasonic transducer 2 improves the energy conversion efficiency, has less energy loss, generates less heat when emitting energy, and reduces the danger caused by heat accumulation.
具体地，为了安装的方便，所述金属带4沿所述金属镀层的长度方向设置。Specifically, for the convenience of installation, the metal strip 4 is arranged along the length direction of the metal coating.
为了连接的可靠性，所述金属镀层与所述金属带4通过键合连接在一起。For connection reliability, the metal plating layer and the metal strip 4 are connected together by bonding.
所述金属带4的外表面和所述电极线5的外表面均设有屏蔽层，以保证相邻所述金属带4之间相互绝缘，以及相邻的所述电极线5之间相互绝缘。Both the outer surface of the metal strip 4 and the outer surface of the electrode wire 5 are provided with a shielding layer to ensure that the adjacent metal strips 4 are insulated from each other, and the adjacent electrode wires 5 are insulated from each other. .
为了达到更好的效果，所述金属镀层优选为黄金镀层，所述金属带4优选为黄金带。In order to achieve a better effect, the metal coating is preferably a gold coating, and the metal strip 4 is preferably a gold strip.
具体地，当需要同时发射能量时，可以将所述第一超声换能器下表面的金属镀层101与所述第二超声换能器上表面的金属镀层201通过与各自连接的电极线5连接到超声波发生设备的正极上，将位于两者之间的所述金属镀层3通过与其连接的电极线5连接到超声波发生设备的负极上，这样第一超声换能器下表面的金属镀层101和第二超声换能器上表面的金属镀层201共用一个电极，而且当超声波发生设备发射能量时所述第一超声换能器下表面的金属镀层101和第二超声换能器上表面的金属镀层201表面就会同时发射两束一样的超声能量，从而能够提高消融效率。Specifically, when energy needs to be emitted at the same time, the metal coating 101 on the lower surface of the first ultrasonic transducer can be connected to the metal coating 201 on the upper surface of the second ultrasonic transducer through the electrode wires 5 connected to each other. On the positive pole of the ultrasonic generating device, the metal coating 3 between the two is connected to the negative pole of the ultrasonic generating device by the electrode wire 5 connected thereto, so that the metal coating 101 on the lower surface of the first ultrasonic transducer and The metal coating 201 on the upper surface of the second ultrasonic transducer shares an electrode, and when the ultrasonic generating device emits energy, the metal coating 101 on the lower surface of the first ultrasonic transducer and the metal coating on the upper surface of the second ultrasonic transducer The surface of the 201 emits two beams of the same ultrasonic energy at the same time, thereby improving the ablation efficiency.
当需要独立发射能量时，将所述第一超声换能器下表面的金属镀层101与所述第二超声换能器上表面的金属镀层201通过与各自连接的电极线5分别连接到超声波发生设备的两个正极，将位于两者之间的所述金属镀层3通过与其连接的电极线5连接到超声波发生设备的负极，当超声波发生设备发射能量时，所述第一超声换能器1的下表面与第二超声换能器2的上表面可以选择性的发射能量；即第一超声换能器下表面的金属镀层101和所述第二超声换能器上表面的金属镀层201可以选择性的发射能量。When it is necessary to transmit energy independently, the metal coating 101 on the lower surface of the first ultrasonic transducer and the metal coating 201 on the upper surface of the second ultrasonic transducer are respectively connected to the ultrasonic generator through the electrode wires 5 connected respectively. The two positive poles of the device, the metal coating 3 between the two is connected to the negative pole of the ultrasonic generating device through the electrode wire 5 connected thereto, when the ultrasonic generating device emits energy, the first ultrasonic transducer 1 The lower surface and the upper surface of the second ultrasonic transducer 2 can selectively emit energy; that is, the metal coating 101 on the lower surface of the first ultrasonic transducer and the metal coating 201 on the upper surface of the second ultrasonic transducer can be Selective emission of energy.
实施例二Embodiment two
本实施例与实施例一的区别在于：如图2所示，所述第一超声换能器1和第二超声换能器2的上下表面均镀有金属镀层，所述第一超声换能器1的上表面的金属镀层与所述第二超声换能器2的下表面的金属镀层之间设有共用的背衬层6；所述背衬层6可以由RTV硅橡胶材料制成或者由具有多孔结构的吸声材料制成，设置所述背衬层6，超声转换效率会极大的提高，第一超声换能器下表面的金属镀层101和所述第二超声换能器上表面的金属镀层201均能发射超声转换效率较高的能量，既提高了超声转换效率，又提高了消融效率。The difference between this embodiment and Embodiment 1 is that: as shown in Figure 2, the upper and lower surfaces of the first ultrasonic transducer 1 and the second ultrasonic transducer 2 are coated with metal coating, and the first ultrasonic transducer A common backing layer 6 is provided between the metal coating on the upper surface of the device 1 and the metal coating on the lower surface of the second ultrasonic transducer 2; the backing layer 6 can be made of RTV silicone rubber material or Made of a sound-absorbing material with a porous structure, the ultrasonic conversion efficiency will be greatly improved by setting the backing layer 6, and the metal plating layer 101 on the lower surface of the first ultrasonic transducer and the second ultrasonic transducer The metal coating 201 on the surface can emit energy with high ultrasonic conversion efficiency, which not only improves the ultrasonic conversion efficiency, but also improves the ablation efficiency.
当需要同时发射能量时，所述第一超声换能器下表面的金属镀层101和所述第二超声换能器上表面的金属镀层201共同连接到超声波发生设备的正极，第一超声换能器上表面的金属镀层102和第二超声换能器下表面的金属镀层202共同连接到超声波发生设备的负极，当超声波发生设备发射能量时，所述第一超声换能器下表面的金属镀层101和所述第二超声换能器上表面的金属镀层201表面就会同时发射两束一样的超声能量，能够提高消融效率。When energy needs to be emitted at the same time, the metal coating 101 on the lower surface of the first ultrasonic transducer and the metal coating 201 on the upper surface of the second ultrasonic transducer are jointly connected to the positive pole of the ultrasonic generating device, and the first ultrasonic transducer The metal coating 102 on the upper surface of the ultrasonic transducer and the metal coating 202 on the lower surface of the second ultrasonic transducer are jointly connected to the negative pole of the ultrasonic generating device, and when the ultrasonic generating device emits energy, the metal coating on the lower surface of the first ultrasonic transducer 101 and the surface of the metal coating 201 on the upper surface of the second ultrasonic transducer emit two beams of the same ultrasonic energy at the same time, which can improve the ablation efficiency.
当需要独立发射能量时，所述第一超声换能器下表面的金属镀层101和所述第二超声换能器上表面的金属镀层201分别连接到超声波发生设备的两个正极，第一超声换能器上表面的金属镀层102和第二超声换能器下表面的金属镀层202共同连接到超声波发生设备的负极，当超声波发生设备发射能量时，第一超声换能器下表面的金属镀层101和所述第二超声换能器上表面的金属镀层201可以选择性的发射能量。When independent emission of energy is required, the metal coating 101 on the lower surface of the first ultrasonic transducer and the metal coating 201 on the upper surface of the second ultrasonic transducer are respectively connected to the two positive poles of the ultrasonic generating device. The metal coating 102 on the upper surface of the transducer and the metal coating 202 on the lower surface of the second ultrasonic transducer are jointly connected to the negative pole of the ultrasonic generating device, and when the ultrasonic generating device emits energy, the metal coating on the lower surface of the first ultrasonic transducer 101 and the metal coating 201 on the upper surface of the second ultrasonic transducer can selectively emit energy.
由以上实施例可以看出，本实用新型能够提高超声换能器的工作效率，减少热量的产生，并提高超声消融治疗的安全性。It can be seen from the above embodiments that the utility model can improve the working efficiency of the ultrasonic transducer, reduce heat generation, and improve the safety of ultrasonic ablation treatment.
以上所述仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871649.6UCN204411522U (en) | 2014-12-31 | 2014-12-31 | One launches many acoustic beams ultrasonic assembly mutually dorsad |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871649.6UCN204411522U (en) | 2014-12-31 | 2014-12-31 | One launches many acoustic beams ultrasonic assembly mutually dorsad |
| Publication Number | Publication Date |
|---|---|
| CN204411522Utrue CN204411522U (en) | 2015-06-24 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420871649.6UExpired - LifetimeCN204411522U (en) | 2014-12-31 | 2014-12-31 | One launches many acoustic beams ultrasonic assembly mutually dorsad |
| Country | Link |
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| CN (1) | CN204411522U (en) |
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|---|---|---|---|---|
| CN105797286A (en)* | 2014-12-31 | 2016-07-27 | 上海形状记忆合金材料有限公司 | Ultrasonic assembly for mutually backward emission of multiple acoustic beams |
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105797286A (en)* | 2014-12-31 | 2016-07-27 | 上海形状记忆合金材料有限公司 | Ultrasonic assembly for mutually backward emission of multiple acoustic beams |
| CN105797286B (en)* | 2014-12-31 | 2019-02-22 | 上海形状记忆合金材料有限公司 | A multi-beam ultrasonic component with back-to-back emission |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | Granted publication date:20150624 Effective date of abandoning:20190222 |