CN202154700U - Ultrasonic linear scanning device - Google Patents
Ultrasonic linear scanning device Download PDFInfo
- Publication number
- 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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- ultrasonic
- ultrasonic transducer
- travelling gear
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Abstract
An ultrasonic linear scanning device comprises an ultrasonic transducer, a displacement sensor, a rotary driving mechanism M, a transmission gear, a pair of transmission racks and a feedback control system. The transmission gear is fixed onto an rotary output shaft of the rotary driving mechanism M and meshes with the pair of transmission racks which are parallel to each other, a pair of parallel guide rails is arranged below the transmission racks, each guide rail is connected with a slider, and each slider is connected with the transmission rack above the same through a connector. Besides, the ultrasonic transducer is fixed onto one slider through a fixing frame and is connected with one transmission rack, the displacement sensor is connected with the other transmission rack, and an information output end of the displacement sensor is connected with a feedback control system. The transmission gear and the transmission racks are used as switching components for rotational motion and linear motion. The ultrasonic linear scanning device is simple in structure, small in size and high in output force. Motion of the ultrasonic transducer can be controlled accurately, while the scanning range and image definition meet requirements for ophthalmological clinical diagnosis.
Description
Technical field
This utility model relates to a kind of ultrasonic linear scanning means, belongs to the medical image checkout equipment.
Background technology
(Ultrasound Biomicroscopy UBM) is widely used in the imaging examination of anterior ocular segment ultrasound biomicroscopy UBM.At present, be applied to the scanning means of UBM probe, scan mode mainly is that fan sweeping and line are swept.Fan sweeping is simple in structure, but track while scan curvature is opposite with eyeball surface curvature, and when carrying out the scanning of wide scape, ultrasonic incident path is the substantial deviation normal direction in the zone, image border, causes sensitivity decline and pattern distortion.Compare fan sweeping, track swept by line and eyeball surface curvature is more approaching, so image quality is higher.But the common structure more complicated of existing line sweeping device, volume is bigger, and cost is higher, sweeps structure so how to simplify line, reduces device volume, and reducing cost is the problem that the UBM probe designs need solve.
The utility model content
The utility model discloses a kind of ultrasonic linear scanning means, can overcome low, the pattern distortion of available technology adopting fan sweeping sensitivity, line sweeping device complex structure, volume is big, drawbacks such as cost height.The power of the ultrasonic linear scanning means of this utility model is from a rotary drive mechanism, and this driving mechanism produces crankmotion under the effect of a feedback control system, and rotatablely moving is converted into the linear movement of ultrasonic transducer.Displacement transducer feeds back to feedback control system with the positional information of ultrasonic transducer,, thus the correctness of assurance ultrasonic transducers locations.This apparatus structure is simple, advantages of small volume, and cost is low, and is highly sensitive, clear image.
A kind of ultrasonic linear scanning means; Comprise: ultrasonic transducer, displacement transducer, rotary drive mechanism M, travelling gear, driving rack and feedback control system; It is characterized in that: travelling gear is fixed on the output rotating shaft of rotary drive mechanism M, the engagement of the driving rack of travelling gear and pair of parallel, and the driving rack below is provided with the pair of parallel guide rail; Be connected with slide block on each guide rail, each slide block is connected with the driving rack of top through connector; Ultrasonic transducer is fixed on the slide block through fixed mount and is connected with a travelling gear, and displacement transducer is connected with another root travelling gear through drive link, and the displacement transducer information output is connected with feedback control system.
This utility model adopts the motor rotation to drive, with travelling gear and driving rack as the motion converting member, the linear movement of realization ultrasonic transducer.Two parallel driving racks move under the drive of travelling gear round about, but the absolute value of its displacement equates.The driven by motor travelling gear, travelling gear drives ultrasonic transducer through driving rack and moves back and forth as linearity.Displacement transducer feeds back to feedback control system with the positional information of ultrasonic transducer, feedback control system control rotary drive mechanism M motion, and the correctness of assurance ultrasonic transducers locations.
The beneficial effect of this utility model is: adopt rotary drive mechanism that power is provided in the online sweeping device, and simple in structure, advantages of small volume; Power output is big; Processing and manufacturing is easy, utilizes travelling gear, driving rack as rotatablely moving and straight-line converting member, and is simple and reliable.Utilize the displacement transducer information feedback, feedback control system can accurately be controlled the motion of ultrasonic transducer, and sweep limits and image definition can both satisfy the demand of clinical ophthalmology diagnosis simultaneously.
Description of drawings
Fig. 1 is the ultrasonic linear scanning means structural representation of this utility model;
Fig. 2 is the sketch map of ultrasonic transducer and eyeball to be measured.
1. ultrasonic transducer; 2. ultrasonic pulse; 3. organ to be measured (eyeball); 4. fixed mount; 5. driving rack; 6. travelling gear; 7. rotating shaft; 8. rotary drive mechanism M; 9. displacement transducer; 10. drive link; 11. slide block; 12. guide rail; 13. connector.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment this utility model is specified.
A kind of ultrasonic linear scanning means; As shown in Figure 1; Comprise: ultrasonic transducer 1, displacement transducer 9, rotary drive mechanism M8, travelling gear 6, driving rack 5 and feedback control system; It is characterized in that: travelling gear 6 is fixed on the output rotating shaft 7 of rotary drive mechanism M8, and travelling gear 6 meshes with the driving rack 5 of pair of parallel, and driving rack 5 belows are provided with pair of parallel guide rail 12; Be connected with slide block 11 on each guide rail, each slide block is connected with the driving rack 5 of top through connector 13; Ultrasonic transducer 1 is fixed on the slide block 11 through fixed mount 4 and is connected with a driving rack 5 (a), and displacement transducer 9 is connected with another root driving rack 5 (b) through drive link 10, and the displacement transducer information output is connected with feedback control system.
User mode is as shown in Figure 2, at first with 1 pair of organ to be measured of ultrasonic transducer (eyeball) 3, and emission ultrasonic pulse 2, and accept reflection echo, so carry out reciprocal linear scanning.
The rotation of feedback control system control rotary drive mechanism; Rotating shaft 7 drives travelling gear 6 rotations; Travelling gear 6 makes ultrasonic transducer 1 do linear movement through driving rack 5 (a), drives drive link 10 through driving rack 5 (b) simultaneously and does the reverse linear motion, and their displacement absolute value equates.The position of ultrasonic transducer 1 feeds back to feedback control system after drive link 10 passes to displacement transducer 9, the rotation of control rotary drive mechanism M8 drives ultrasonic transducer 1 and so carries out reciprocal linear scanning.
Claims (1)
1. ultrasonic linear scanning means; Comprise: ultrasonic transducer, displacement transducer, rotary drive mechanism M, travelling gear, driving rack and feedback control system; It is characterized in that: travelling gear is fixed on the output rotating shaft of rotary drive mechanism M, the engagement of the driving rack of travelling gear and pair of parallel, and the driving rack below is provided with the pair of parallel guide rail; Be connected with slide block on each guide rail, each slide block is connected with the driving rack of top through connector; Ultrasonic transducer is fixed on the slide block through fixed mount and is connected with a travelling gear, and displacement transducer is connected with another root travelling gear through drive link, and the displacement transducer information output is connected with feedback control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202171497U CN202154700U (en) | 2011-06-23 | 2011-06-23 | Ultrasonic linear scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202171497U CN202154700U (en) | 2011-06-23 | 2011-06-23 | Ultrasonic linear scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202154700U true CN202154700U (en) | 2012-03-07 |
Family
ID=45762354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202171497U Expired - Fee Related CN202154700U (en) | 2011-06-23 | 2011-06-23 | Ultrasonic linear scanning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202154700U (en) |
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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20120623 |