CN103393437B - Rotating control device, rotating control drawing-back system and ultrasonic imaging system - Google Patents
Rotating control device, rotating control drawing-back system and ultrasonic imaging system Download PDFInfo
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- CN103393437B CN103393437B CN201310339993.0A CN201310339993A CN103393437B CN 103393437 B CN103393437 B CN 103393437B CN 201310339993 A CN201310339993 A CN 201310339993A CN 103393437 B CN103393437 B CN 103393437B
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Abstract
The invention relates to a rotating control device, a rotating control drawing-back system and an ultrasonic imaging system. The rotating control device comprises a transmission shaft, a first transmission device, a second transmission device, a driving device, an angle detection device, a slip ring, a cable and at least two supporting seats. The driving device drives the first transmission device, the transmission shaft, the second transmission device and the angle detection device to rotate synchronously, and the angle detection device is used for detecting the angle of the synchronous rotation. The cable is used for transmitting echo rotation electrical signals converted by an ultrasonic transducer through the slip ring. The rotating control device, the rotating control drawing-back system and the ultrasonic imaging system achieve transmitting from the rotation signals to fixed signals and are simple in overall structure, convenient to assemble and debug, low in cost, stable in transmission, reliable in signal transmission, accurate in angle measurement, low in noise, small in vibration and high in anti-interference capacity.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of rotating control assembly, Spin Control withdraws system and ultrasonic image-forming system.
Background technology
In order to observe endovascular atherosclerosis plaque block message, mainly adopt intravascular ultrasonic imaging.Intravascular ultrasound imaging system generally adopts built-in high frequency miniature ultrasonic probe, connects high speed rotating unit and signal processing circuit and imaging device, imaging in arteries, obtains the ring type B ultrasonic image of ductus arteriosus wall.This intravascular ultrasound imaging has very high resolution, not only can measure blood vessel radial line, lumen of vessels area, and can show the form of atherosclerotic plaque, structure and histologic characteristics.But the rotary apparatus in current ultrasonic image-forming system expensive, cost is higher.
Summary of the invention
Based on this, be necessary, for the higher problem of the cost of existing rotary apparatus, to provide a kind of lower-cost rotating control assembly.
In addition, there is a need to provide a kind of lower-cost Spin Control to withdraw system.
In addition, there is a need to provide a kind of lower-cost ultrasonic image-forming system.
A kind of rotating control assembly, comprise power transmission shaft, the first actuating device, the second actuating device, driving device, angle detection device, slip ring, cable and at least two bearings, described first actuating device and the second actuating device to be enclosed within described power transmission shaft and synchronous rotary; On a bearing of at least two bearings described in described driving device is arranged on described first actuating device and both be connected; On another bearing of at least two bearings described in described second actuating device and described angle detection device are arranged on, and described second actuating device is connected with the output shaft of described angle detection device; Described slip ring is arranged on one end of described power transmission shaft, and coaxial with described power transmission shaft; Described driving device drives described first actuating device, power transmission shaft, the second actuating device and angle detection device synchronous axial system, and described angle detection device is for detecting the angle of synchronous axial system; Described cable is arranged in described power transmission shaft, and is connected with described slip ring, and the echo rotary electric signals that described cable is used for ultrasonic transducer to change is transmitted by described slip ring.
Wherein in an embodiment, described rotating control assembly also comprises the first rolling bearing and the second rolling bearing, described first rolling bearing is arranged between described power transmission shaft and described first actuating device, and described second rolling bearing is arranged between described power transmission shaft and described second actuating device.
Wherein in an embodiment, described first actuating device and the second actuating device are fixed on described power transmission shaft by securing member.
Wherein in an embodiment, described angle detection device is optical rotary encoder or Hall element.
Wherein in an embodiment, described rotating control assembly also comprises base and the 3rd rolling bearing, described at least two bearings are arranged on described base, slip ring on described power transmission shaft one end is fixed on the first end of described base, and the other end of described power transmission shaft is connected by described 3rd rolling bearing with the second end of described base.
Wherein in an embodiment, the teeth groove that described first actuating device and the second actuating device include double wedge and be meshed with described double wedge.
Wherein in an embodiment, described power transmission shaft is contact tube, and described driving device is direct current generator.
A kind of Spin Control withdraws system, and comprise parametric controller and described rotating control assembly, described rotating control assembly is arranged on described parametric controller, and moves by the control constant level of described parametric controller.
A kind of ultrasonic image-forming system, comprise ultrasonic action and receiving system, control and imaging device and the conduit containing ultrasonic transducer, described ultrasonic action is connected with imaging device with described control with receiving system, and described ultrasonic image-forming system also comprises described rotating control assembly, the other end of described power transmission shaft connects the described conduit containing ultrasonic transducer by given joint, described slip ring is connected with receiving system with described ultrasonic action by jointing, described cable is connected with described ultrasonic transducer, described slip ring is used for the pumping signal that described ultrasonic action and receiving system produce to pass to described ultrasonic transducer by described cable, and receive the echo rotary electric signals that described ultrasonic transducer changes, and change described echo rotary electric signals into echo fixed telecommunication number and pass to described ultrasonic action and receiving system, described ultrasonic action and receiving system receive described echo fixed telecommunication number and process, and the described echo fixed telecommunication number after process is sent to described control and imaging device.
Wherein in an embodiment, described ultrasonic action and receiving system comprise pulse generator and signal processing unit, described pulse generator for generation of pumping signal, described signal processing unit is used for amplifying described echo fixed telecommunication number, filtering, envelope detected and digital scan conversion process.
Above-mentioned rotating control assembly, Spin Control withdraw system and ultrasonic image-forming system, the transmission of rotating signal to fixed signal is achieved by driving device, the first actuating device, the second actuating device, power transmission shaft, slip ring, cable and at least two bearings, overall structure is simple, assembly and adjustment is convenient, cost is lower, and stable transmission, transmission of signal is reliable, takes measurement of an angle accurately, noise is low, it is little to vibrate, and capacity of resisting disturbance is strong.
In addition, the first rolling bearing, the second rolling bearing and the 3rd rolling bearing are set, can friction torque be reduced, make rotation smooth and easy; Adopt direct current generator as power source, frame for movement is simple, noise is little, it is little to vibrate, starting torque is large, rotating speed is high and cost is low; Adopt double wedge and teeth groove, can realize the Synchronous Transmission without slippage, obtain accurate gear ratio, transmission efficiency is high, and transmission range is large, and maintaining is convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment rotating control assembly;
Fig. 2 is the structural representation of an embodiment ultrasonic image-forming system;
Fig. 3 is the connection diagram between the internal structure of ultrasonic action and receiving system in Fig. 2 and miscellaneous part.
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing, the structure that rotating control assembly, Spin Control withdraw system and ultrasonic image-forming system is described in detail, to make it clearly.
As shown in Figure 1, be the structural representation of rotating control assembly in an embodiment.This rotating control assembly, comprises base 102, power transmission shaft 104, first actuating device 106, second actuating device 108, driving device 110, angle detection device 112, slip ring 114, cable (not shown) and at least two bearings 118.
Wherein, the first actuating device 106 and the second actuating device 108 to be enclosed within power transmission shaft 104 and synchronous rotary.Driving device 110 and the first actuating device 106 are arranged on a bearing of these at least two bearings 116, and the first driving device 110 is connected with the first actuating device 106; Second actuating device 108 and angle detection device 112 are arranged on another bearing of these at least two bearings 116, and the second actuating device 108 is connected with the output shaft of angle detection device 112; Slip ring 114 is arranged on one end of power transmission shaft 104, and slip ring 114 is coaxial with power transmission shaft 104; Driving device 110 drives the first actuating device 106, power transmission shaft 104, second actuating device 108 and angle detection device 112 synchronous axial system; Angle detection device 112 is for detecting the angle of synchronous axial system; Cable is arranged in power transmission shaft 104, and cable is connected with slip ring 114, and the echo rotary electric signals that cable is used for ultrasonic transducer 130 to change is transmitted by slip ring 114.At least two bearings 116 are fixed on base 102; Slip ring 114 on power transmission shaft 104 one end is fixed on the first end of base 102, and the other end of power transmission shaft 104 is connected with the second end of base 102.In addition, base 102 can omit.
First actuating device 106 and the second actuating device 108 are crossed gap with power transmission shaft 104 and are coordinated.
Slip ring 114 is the electric components being responsible for rotary body connection, carrying the energy and signal, distinguish according to transmission medium, slip ring is divided into electric slip ring, fluid slip ring, smooth ring, usually the center of rotation of equipment is arranged on, form with static two large divisions primarily of rotation, the rotational structure also rotary motion thereupon of rotating part connection device, the energy of the fixed structure of stationary part connection device.In the present embodiment, the rotating part connection for transmission axle 104 of slip ring 114, the stationary part of slip ring 114 connects ultrasonic action and receiving system (i.e. permanent circuit structure division).
The work process of above-mentioned rotating control assembly is: drive the first actuating device 106 to rotate by driving device 110, first actuating device 106 drives power transmission shaft 104 to rotate, power transmission shaft 104 drives the second actuating device 108 to rotate, second actuating device 108 drives angle detection device 112 to rotate, thus detect the angle of rotating, power transmission shaft 104 drives ultrasonic transducer 130 rotary scanning to obtain echo rotary electric signals, by echo rotary electric signals by cable transmission to slip ring 114, echo rotary electric signals is changed into echo fixed telecommunication number and passes to follow-up ultrasonic action and receiving system processes by slip ring 114, thus the echo rotary electric signals completed scanning obtains changes echo fixed telecommunication number into, wherein power transmission shaft 104 is connected with the conduit containing ultrasonic transducer 130 by given joint 120.
Above-mentioned rotating control assembly, the transmission of rotating signal to fixed signal is achieved by driving device 110, first actuating device 106, second actuating device 108, power transmission shaft 104, slip ring 114, cable 116 and at least two bearings 116, overall structure is simple, assembly and adjustment is convenient, cost is lower, and stable transmission, transmission of signal is reliable, takes measurement of an angle accurately, noise is low, it is little to vibrate, and capacity of resisting disturbance is strong.
In one embodiment, above-mentioned rotating control assembly also comprises the first rolling bearing (not shown), the second rolling bearing (not shown) and the 3rd rolling bearing (not shown).This first rolling bearing is arranged between power transmission shaft 104 and the first actuating device 106, and the second rolling bearing is arranged between power transmission shaft 104 and the second actuating device 108; The other end of power transmission shaft 104 is connected by the 3rd rolling bearing with the second end of base 102.Rolling bearing is set between the parts rotated, rotates in order to supporting shaft 104, reduce friction torque, be convenient to it along the smooth and easy rotation of power transmission shaft 104 axis.
First actuating device 106 and the second actuating device 108 are fixed on power transmission shaft 104 by securing member.This securing member can be holding screw, bolt etc.
The teeth groove that first actuating device 106 and the second actuating device 108 include double wedge and be meshed with double wedge.Adopt double wedge to be meshed with teeth groove and carry out synchronous transmitting movement and power, contrast with other transmissions, can realize the Synchronous Transmission without slippage, obtain accurate gear ratio, transmission efficiency is high, and transmission range is large, and maintaining is convenient.
Power transmission shaft 104 can be contact tube.This contact tube can be contact tube, conduction iron pipe etc.
Driving device 110 can be direct current generator.The frame for movement of direct current generator is simple, noise is little, it is little to vibrate, starting torque is large, rotating speed is high and cost is low, is suitable as outputting power source.
Angle detection device 112 can be optical rotary encoder or Hall element.
When this angle detection device 112 is optical rotary encoder, the corresponding hardware circuit of configuration can be adopted to calculate rotational angle.Such as adopt fpga chip, carry out increasing or decreasing counting according to turning to of optical rotary encoder, adopt FPGA to carry out counting, latching and buffer control, use hardware description language to write control sequence and carry out control counting, statistics pulse number, calculates rotational angle according to pulse number.Optical rotary encoder exports two pulse signals (A, B) and a zero signal (Z(L)), A, B pulse signal mutual deviation 90 degree of phase angles, can location aware, angle and the number of turns constantly be increased by step-by-step counting, rotating is known by A, B pulse signal is advanced or delayed, after power failure, counting must be restarted from the benchmark of agreement.Optical rotary encoder exports square-wave signal, and the frequency of square-wave signal is the speed of encoder rotation, and the number of square wave is expressed as the information of current location.CPLD(Complex Programmable LogicDevice can be adopted, CPLD), FPGA(Field Programmable Gate Array, i.e. field programmable gate array), single-chip microcomputer, DSP(digital signal processing, digital signal processor), the chip such as ARM gathers square-wave signal.
When this angle detection device 112 is Hall element, can adopt contactless installation, consumed energy is few, takes up room little, exports the analogue signal of angle signal, can analogue signal be carried out being converted into digital signal by design circuit.
In one embodiment, a kind of Spin Control withdraws system and comprises parametric controller and above-mentioned rotating control assembly, and wherein, this rotating control assembly is arranged on this parametric controller, and moves by the control constant level of this parametric controller.
As shown in Figure 2, in one embodiment, a kind of ultrasonic image-forming system, comprise ultrasonic action and receiving system, control and imaging device, rotating control assembly and the conduit containing ultrasonic transducer 130, this ultrasonic action is connected with imaging device with this control with receiving system, and rotating control assembly connects the conduit and this ultrasonic action and receiving system that contain ultrasonic transducer 130.The other end of the power transmission shaft 104 of rotating control assembly connects the conduit containing ultrasonic transducer 130 by given joint, slip ring 114 is connected with receiving system with ultrasonic action by jointing, and cable is connected with ultrasonic transducer 130.This given joint can be sub-miniature A connector.
Slip ring 114 passes to this ultrasonic transducer 130 for the pumping signal this ultrasonic action and receiving system produced by cable, and receive the echo rotary electric signals that this ultrasonic transducer 130 changes, and change this echo rotary electric signals into echo fixed telecommunication number and pass to this ultrasonic action and receiving system, this ultrasonic action and receiving system receive this echo fixed telecommunication number and process, and this echo fixed telecommunication number after process is sent to this control and imaging device.
As shown in Figure 3, this ultrasonic action and receiving system comprise pulse generator and signal processing unit, this pulse generator for generation of pumping signal, this signal processing unit is used for amplifying described echo fixed telecommunication number, filtering, envelope detected and digital scan conversion process.Wherein, filtering can adopt digital filtering algorithm, carries out bandpass filtering to input radio frequency signal, filter away high frequency noise and low-frequency interference signal; Envelope detection algorithm, adopts Hilbert transform, obtains the amplitude of radiofrequency signal, and removes high frequency carrier composition; Digital scan conversion algorithm, the data of pressing polar coordinate collection and preservation, by spatial recomposition and interpolation arithmetic, is transformed into the data save mode by rectangular coordinate, so that follow-up display.
Above-mentioned ultrasonic image-forming system, the first actuating device 106 is driven by the driving device 110 of rotating control assembly, power transmission shaft 104, second actuating device 108, comprise conduit and angle detection device 112 synchronous rotary of ultrasonic transducer 130, angle detection device 112 detects synchronous axial system angle, namely angle of rotation angle and the position of ultrasonic transducer 130 is detected, control and imaging device sending controling instruction, ultrasonic action and receiving system produce pumping signal according to this control instruction and encourage ultrasonic transducer 130 to carry out ultrasonic scanning by cable transmission to ultrasonic transducer 130, ultrasonic transducer 130 receives echo rotary electric signals, and echo rotary electric signals passes to slip ring 114 by cable, slip ring 114 changes echo rotary electric signals into echo fixed telecommunication number and passes to ultrasonic action and receiving system, ultrasonic action and receiving system amplify after receiving fixed telecommunication number, filtering, the process such as envelope detected and digital scan conversion, and then by process after echo fixed telecommunication number be transferred to control with imaging device carry out imaging.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a rotating control assembly, it is characterized in that, comprise power transmission shaft, the first actuating device, the second actuating device, driving device, angle detection device, slip ring, cable and at least two bearings, described first actuating device and the second actuating device to be enclosed within described power transmission shaft and synchronous rotary; On a bearing of at least two bearings described in described driving device is arranged on described first actuating device and both be connected; On another bearing of at least two bearings described in described second actuating device and described angle detection device are arranged on, and described second actuating device is connected with the output shaft of described angle detection device; Described slip ring is arranged on one end of described power transmission shaft, and coaxial with described power transmission shaft; Described driving device drives described first actuating device, power transmission shaft, the second actuating device and angle detection device synchronous axial system, and described angle detection device is for detecting the angle of synchronous axial system; Described cable is arranged in described power transmission shaft, and is connected with described slip ring, and the echo rotary electric signals that described cable is used for ultrasonic transducer to change is transmitted by described slip ring, and wherein, described ultrasonic transducer is connected with described cable.
2. rotating control assembly according to claim 1, it is characterized in that, described rotating control assembly also comprises the first rolling bearing and the second rolling bearing, described first rolling bearing is arranged between described power transmission shaft and described first actuating device, and described second rolling bearing is arranged between described power transmission shaft and described second actuating device.
3. rotating control assembly according to claim 1, is characterized in that, described first actuating device and the second actuating device are fixed on described power transmission shaft by securing member.
4. rotating control assembly according to claim 1, is characterized in that, described angle detection device is optical rotary encoder or Hall element.
5. rotating control assembly according to claim 1, it is characterized in that, described rotating control assembly also comprises base and the 3rd rolling bearing, described at least two bearings are arranged on described base, slip ring on described power transmission shaft one end is fixed on the first end of described base, and the other end of described power transmission shaft is connected by described 3rd rolling bearing with the second end of described base.
6. rotating control assembly according to claim 1, is characterized in that, the teeth groove that described first actuating device and the second actuating device include double wedge and be meshed with described double wedge.
7. rotating control assembly according to claim 1, is characterized in that, described power transmission shaft is contact tube, and described driving device is direct current generator.
8. a Spin Control withdraws system, it is characterized in that, comprise parametric controller and the rotating control assembly according to any one of claim 1 to 7, described rotating control assembly is arranged on described parametric controller, and moves by the control constant level of described parametric controller.
9. a ultrasonic image-forming system, comprise ultrasonic action and receiving system, control and imaging device and the conduit containing ultrasonic transducer, described ultrasonic action is connected with imaging device with described control with receiving system, it is characterized in that, described ultrasonic image-forming system also comprises the rotating control assembly according to any one of claim 1 to 7, the other end of described power transmission shaft connects the described conduit containing ultrasonic transducer by given joint, described slip ring is connected with receiving system with described ultrasonic action by jointing, described cable is connected with described ultrasonic transducer, described slip ring is used for the pumping signal that described ultrasonic action and receiving system produce to pass to described ultrasonic transducer by described cable, and receive the echo rotary electric signals that described ultrasonic transducer changes, and change described echo rotary electric signals into echo fixed telecommunication number and pass to described ultrasonic action and receiving system, described ultrasonic action and receiving system receive described echo fixed telecommunication number and process, and the described echo fixed telecommunication number after process is sent to described control and imaging device, described specific adaptor is sub-miniature A connector.
10. ultrasonic image-forming system according to claim 9, it is characterized in that, described ultrasonic action and receiving system comprise pulse generator and signal processing unit, described pulse generator for generation of pumping signal, described signal processing unit is used for amplifying described echo fixed telecommunication number, filtering, envelope detected and digital scan conversion process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310339993.0A CN103393437B (en) | 2013-08-06 | 2013-08-06 | Rotating control device, rotating control drawing-back system and ultrasonic imaging system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310339993.0A CN103393437B (en) | 2013-08-06 | 2013-08-06 | Rotating control device, rotating control drawing-back system and ultrasonic imaging system |
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| CN103393437A CN103393437A (en) | 2013-11-20 |
| CN103393437B true CN103393437B (en) | 2015-04-08 |
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| CN105011906B (en) * | 2015-06-11 | 2017-09-19 | 北京大学 | The optoacoustic computed tomography system and its imaging method of a kind of combination slip ring |
| CN107736900A (en) * | 2017-11-09 | 2018-02-27 | 深圳先进技术研究院 | A kind of dual transducers intravascular ultrasound imaging device |
| WO2019119309A1 (en) * | 2017-12-20 | 2019-06-27 | 深圳先进技术研究院 | Test device and test method for ultrasonic transducer echo test |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688956A (en) * | 2011-03-23 | 2012-09-26 | 浙江伟星实业发展股份有限公司 | Square-lock-tooth arranging and pressing machine for metal zip fastener |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5647364A (en) * | 1995-02-15 | 1997-07-15 | Ultra-Scan Corporation | Ultrasonic biometric imaging and identity verification system |
| US8531064B2 (en) * | 2010-02-11 | 2013-09-10 | Ethicon Endo-Surgery, Inc. | Ultrasonically powered surgical instruments with rotating cutting implement |
| CN102537125B (en) * | 2010-12-30 | 2016-05-11 | 洪涛 | Spatial-wedging friction connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102688956A (en) * | 2011-03-23 | 2012-09-26 | 浙江伟星实业发展股份有限公司 | Square-lock-tooth arranging and pressing machine for metal zip fastener |
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Effective date of registration: 20201117 Address after: 300 000 Tianjin Binhai New Area pilot free trade zone (Airport Economic Zone) east area, 3 / F, No. 9, Xiba Road, Tianjin Patentee after: TIANJIN HENGYU MEDICAL TECHNOLOGY Co.,Ltd. Address before: 1068 No. 518055 Guangdong city in Shenzhen Province, Nanshan District City Xili University School Avenue Patentee before: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY |
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