CN202154700U - Ultrasonic linear scanning device - Google Patents
Ultrasonic linear scanning device Download PDFInfo
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- CN202154700U CN202154700U CN2011202171497U CN201120217149U CN202154700U CN 202154700 U CN202154700 U CN 202154700U CN 2011202171497 U CN2011202171497 U CN 2011202171497U CN 201120217149 U CN201120217149 U CN 201120217149U CN 202154700 U CN202154700 U CN 202154700U
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Abstract
一种超声线性扫描装置，包括超声换能器、位移传感器、旋转驱动机构M、传动齿轮、传动齿条和反馈控制系统，传动齿轮固定在旋转驱动机构M的输出旋转轴上，传动齿轮与一对平行的传动齿条啮合，传动齿条下方设置有一对平行导轨，每个导轨上连接有滑块，每个滑块通过连接件与上方的传动齿条连接；超声换能器通过固定架固定在滑块上与一根传动齿轮连接，位移传感器通过传动杆与另一根传动齿轮连接，位移传感器信息输出端与反馈控制系统连接。本实用新型利用传动齿轮、传动齿条作为旋转运动和直线运动的转换部件，结构简单，体积小巧，输出力大，可精确控制超声换能器的运动，同时扫描范围及图像清晰度满足眼科临床诊断的需求。
An ultrasonic linear scanning device, including an ultrasonic transducer, a displacement sensor, a rotary drive mechanism M, a transmission gear, a transmission rack and a feedback control system, the transmission gear is fixed on the output rotating shaft of the rotary drive mechanism M, and the transmission gear is connected to a For the meshing of parallel transmission racks, a pair of parallel guide rails are arranged under the transmission racks, and a slider is connected to each guide rail, and each slider is connected to the upper transmission rack through a connecting piece; the ultrasonic transducer is fixed by a fixing frame The slider is connected with a transmission gear, the displacement sensor is connected with another transmission gear through a transmission rod, and the information output end of the displacement sensor is connected with a feedback control system. The utility model uses the transmission gear and the transmission rack as the conversion parts of the rotary motion and the linear motion. diagnostic needs.
Description
技术领域 technical field
本实用新型涉及一种超声线性扫描装置，属于医学影像检测设备。The utility model relates to an ultrasonic linear scanning device, which belongs to medical image detection equipment.
背景技术 Background technique
超声生物显微镜(Ultrasound Biomicroscopy，UBM)被广泛应用在眼前节的影像学检查中。目前，应用于UBM探头的扫描装置，扫描方式主要是扇扫和线扫。扇扫结构简单，但是扫描轨迹曲率和眼球表面曲率相反，在进行宽景扫描时，超声入射路径在图像边缘区域严重偏离法线方向，导致灵敏度下降和图像畸变。相比扇扫，线扫轨迹和眼球表面曲率更加接近，所以成像质量较高。但是已有的线扫装置通常结构比较复杂，体积较大，成本较高，所以如何简化线扫结构，减小装置体积，降低成本是UBM探头设计需要解决的一个问题。Ultrasound Biomicroscopy (UBM) is widely used in the imaging examination of the anterior segment. At present, the scanning devices applied to UBM probes mainly use sector scan and line scan. The structure of the sector scan is simple, but the curvature of the scanning trajectory is opposite to the curvature of the eyeball surface. When performing a wide-field scan, the ultrasonic incident path seriously deviates from the normal direction in the edge area of the image, resulting in a decrease in sensitivity and image distortion. Compared with the fan scan, the line scan trajectory is closer to the curvature of the eyeball surface, so the imaging quality is higher. However, the existing line scanning devices usually have complex structure, large volume and high cost, so how to simplify the line scanning structure, reduce the volume of the device, and reduce the cost is a problem that needs to be solved in the design of UBM probes.
实用新型内容 Utility model content
本实用新型公开了一种超声线性扫描装置，可以克服现有技术中采用扇扫灵敏度低、图像畸变，线扫装置结构复杂，体积大，成本高等弊端。本实用新型超声线性扫描装置的动力来自一个旋转驱动机构，该驱动机构在一个反馈控制系统的作用下产生往复旋转运动，旋转运动转化为超声换能器的线性运动。位移传感器将超声换能器的位置信息反馈回反馈控制系统，，从而保证超声换能器位置的正确性。本装置结构简单，体积小巧，成本低，灵敏度高，图象清晰。The utility model discloses an ultrasonic linear scanning device, which can overcome the disadvantages of low sensitivity, image distortion, complex structure, large volume and high cost of the sector scanning used in the prior art. The power of the ultrasonic linear scanning device of the utility model comes from a rotary drive mechanism, which generates reciprocating rotary motion under the action of a feedback control system, and the rotary motion is converted into linear motion of the ultrasonic transducer. The displacement sensor feeds back the position information of the ultrasonic transducer to the feedback control system, thereby ensuring the correctness of the position of the ultrasonic transducer. The device has the advantages of simple structure, small volume, low cost, high sensitivity and clear image.
一种超声线性扫描装置，包括：超声换能器、位移传感器、旋转驱动机构M、传动齿轮、传动齿条和反馈控制系统，其特征在于：传动齿轮固定在旋转驱动机构M的输出旋转轴上，传动齿轮与一对平行的传动齿条啮合，传动齿条下方设置有一对平行导轨，每个导轨上连接有滑块，每个滑块通过连接件与上方的传动齿条连接；超声换能器通过固定架固定在滑块上与一根传动齿轮连接，位移传感器通过传动杆与另一根传动齿轮连接，位移传感器信息输出端与反馈控制系统连接。An ultrasonic linear scanning device, comprising: an ultrasonic transducer, a displacement sensor, a rotary drive mechanism M, a transmission gear, a transmission rack and a feedback control system, characterized in that: the transmission gear is fixed on the output rotating shaft of the rotary drive mechanism M , the transmission gear meshes with a pair of parallel transmission racks, a pair of parallel guide rails are arranged below the transmission racks, and a slider is connected to each guide rail, and each slider is connected to the upper transmission rack through a connecting piece; ultrasonic transducer The actuator is fixed on the slide block through a fixing frame and connected with a transmission gear, the displacement sensor is connected with another transmission gear through a transmission rod, and the information output end of the displacement sensor is connected with a feedback control system.
本实用新型采用电机旋转驱动，以传动齿轮和传动齿条作为运动转换部件，实现超声换能器的线性运动。两根平行的传动齿条在传动齿轮的带动下，向相反方向运动，但其位移的绝对值相等。电机带动传动齿轮，传动齿轮通过传动齿条带动超声换能器作线性往复移动。位移传感器将超声换能器的位置信息反馈回反馈控制系统，反馈控制系统控制旋转驱动机构M运动，并保证超声换能器位置的正确性。The utility model is driven by a motor to rotate, and a transmission gear and a transmission rack are used as motion conversion parts to realize the linear motion of the ultrasonic transducer. Driven by the transmission gear, the two parallel transmission racks move in opposite directions, but the absolute values of their displacements are equal. The motor drives the transmission gear, and the transmission gear drives the ultrasonic transducer to perform linear reciprocating movement through the transmission rack. The displacement sensor feeds back the position information of the ultrasonic transducer to the feedback control system, and the feedback control system controls the movement of the rotary drive mechanism M and ensures the correctness of the position of the ultrasonic transducer.
本实用新型的有益效果在于：在线扫装置中采用旋转驱动机构提供动力，结构简单，体积小巧，输出力大，加工制造容易，利用传动齿轮、传动齿条作为旋转运动和直线运动的转换部件，简单可靠。利用位移传感器信息反馈，反馈控制系统可以精确控制超声换能器的运动，同时扫描范围及图像清晰度都能满足眼科临床诊断的需求。The beneficial effect of the utility model is that: the rotary drive mechanism is used to provide power in the online sweeping device, the structure is simple, the volume is small, the output force is large, the processing and manufacture are easy, and the transmission gear and the transmission rack are used as the conversion parts of the rotary motion and the linear motion. Simple and reliable. Utilizing the information feedback of the displacement sensor, the feedback control system can precisely control the movement of the ultrasonic transducer, and at the same time, the scanning range and image clarity can meet the needs of ophthalmology clinical diagnosis.
附图说明 Description of drawings
图1是本实用新型超声线性扫描装置结构示意图；Fig. 1 is a schematic structural diagram of an ultrasonic linear scanning device of the present invention;
图2是超声换能器与待测眼球的示意图。Fig. 2 is a schematic diagram of an ultrasonic transducer and an eyeball to be tested.
1.超声换能器；2.超声脉冲；3.待测器官(眼球)；4.固定架；5.传动齿条；6.传动齿轮；7.旋转轴；8.旋转驱动机构M；9.位移传感器；10.传动杆；11.滑块；12.导轨；13.连接件。1. Ultrasonic transducer; 2. Ultrasonic pulse; 3. Organ to be measured (eyeball); 4. Fixing frame; 5. Transmission rack; 6. Transmission gear; .Displacement sensor; 10. Transmission rod; 11. Slider; 12. Guide rail; 13. Connector.
具体实施方式 Detailed ways
以下结合附图和实施例对本实用新型加以详细说明。The utility model is described in detail below in conjunction with accompanying drawing and embodiment.
一种超声线性扫描装置，如图1所示，包括：超声换能器1、位移传感器9、旋转驱动机构M8、传动齿轮6、传动齿条5和反馈控制系统，其特征在于：传动齿轮6固定在旋转驱动机构M8的输出旋转轴7上，传动齿轮6与一对平行的传动齿条5啮合，传动齿条5下方设置有一对平行导轨12，每个导轨上连接有滑块11，每个滑块通过连接件13与上方的传动齿条5连接；超声换能器1通过固定架4固定在滑块11上与一根传动齿条5(a)连接，位移传感器9通过传动杆10与另一根传动齿条5(b)连接，位移传感器信息输出端与反馈控制系统连接。A kind of ultrasonic linear scanning device, as shown in Figure 1, comprises: ultrasonic transducer 1,
使用状态如图2所示，首先将超声换能器1对待测器官(眼球)3，发射超声脉冲2，并接受反射回波，如此进行往复线性扫描。The state of use is shown in FIG. 2 . First, the ultrasonic transducer 1 is used to transmit an ultrasonic pulse 2 to the organ to be tested (eyeball) 3 and receive reflected echoes, so as to perform reciprocating linear scanning.
反馈控制系统控制旋转驱动机构旋转，旋转轴7带动传动齿轮6旋转，传动齿轮6通过传动齿条5(a)使超声换能器1作线性运动，同时通过传动齿条5(b)带动传动杆10作反向直线运动，它们的位移绝对值相等。超声换能器1的位置经传动杆10传递给位移传感器9后反馈给反馈控制系统，控制旋转驱动机构M8的旋转，带动超声换能器1如此进行往复线性扫描。The feedback control system controls the rotation of the rotary drive mechanism. The rotating
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011202171497U CN202154700U (en) | 2011-06-23 | 2011-06-23 | Ultrasonic linear scanning device |
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| CN2011202171497U CN202154700U (en) | 2011-06-23 | 2011-06-23 | Ultrasonic linear scanning device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107822661A (en) * | 2017-12-07 | 2018-03-23 | 中国医学科学院生物医学工程研究所 | A kind of ultrasonic skin 3-D scanning probe |
| CN108574394A (en) * | 2017-03-13 | 2018-09-25 | 上海瑞影医疗科技有限公司 | A kind of high frequency ultrasound probe scanning system with novel voice coil motor |
| CN110893106A (en) * | 2019-12-29 | 2020-03-20 | 俞德芳 | High-frequency single-vibration-element linear array scanning two-dimensional imaging B-ultrasonic probe |
-
2011
- 2011-06-23 CN CN2011202171497U patent/CN202154700U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574394A (en) * | 2017-03-13 | 2018-09-25 | 上海瑞影医疗科技有限公司 | A kind of high frequency ultrasound probe scanning system with novel voice coil motor |
| CN108574394B (en) * | 2017-03-13 | 2023-11-24 | 上海瑞影医疗科技有限公司 | High-frequency ultrasonic probe scanning system with novel voice coil motor |
| CN107822661A (en) * | 2017-12-07 | 2018-03-23 | 中国医学科学院生物医学工程研究所 | A kind of ultrasonic skin 3-D scanning probe |
| CN110893106A (en) * | 2019-12-29 | 2020-03-20 | 俞德芳 | High-frequency single-vibration-element linear array scanning two-dimensional imaging B-ultrasonic probe |
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Granted publication date: 20120307 Termination date: 20120623 |