CN109875512A - A kind of intravascular double-mode imaging device - Google Patents
A kind of intravascular double-mode imaging device Download PDFInfo
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- 238000003384 imaging method Methods 0.000 title claims abstract description 119
- 238000002608 intravascular ultrasound Methods 0.000 claims abstract description 88
- 239000000523 sample Substances 0.000 claims abstract description 88
- 230000005622 photoelectricity Effects 0.000 claims abstract description 19
- 230000033001 locomotion Effects 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims description 36
- 238000012360 testing method Methods 0.000 claims description 7
- 238000002604 ultrasonography Methods 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000012014 optical coherence tomography Methods 0.000 description 91
- 230000001360 synchronised effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008054 signal transmission Effects 0.000 description 6
- 230000005284 excitation Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
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- 230000003902 lesion Effects 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
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- 238000002560 therapeutic procedure Methods 0.000 description 1
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- 230000002485 urinary effect Effects 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
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Abstract
The present invention provides a kind of intravascular double-mode imaging devices comprising imaging probe, probe driving and imaging controller, OCT unit, imaging host；OCT unit includes OCT image module, OCT acquisition module；It includes computer and host side bus interface module that host, which is imaged,；Probe driving and imaging controller include photoelectricity slip ring, IVUS transmitting and receiving module, IVUS acquisition module, probe movement control unit, the end DIC bus interface module；IVUS acquisition module, probe movement control unit are connect with the end DIC bus interface module, and the end DIC bus interface module, OCT acquisition module are connect by host side bus interface module with computer.Using technical solution of the present invention, signal decaying and interference are effectively reduced, the transmission speed and transmission range of signal are improved；Preferably it is integrated with the advantage of ultrasound and optical image technology.
Description
Technical field
The invention belongs to the field of medical instrument technology more particularly to a kind of intravascular double-mode imaging devices.
Background technique
Based endoscopic imaging technology has been widely used in cardiovascular and cerebrovascular system, alimentary canal, urinary system and respiratory tract at present
Etc. multiple fields diagnostic imaging and image guided therapy, be greatly promoted the inspection precision of disease.Intravascular imaging technique,
Optics or ultrasonic imaging element are integrated in conduit and put in internal blood vessel expansion imaging, the geometry of available vascular tissue
Structural form has become " goldstandard " of the assessment of vessel inner lesion diagnosing and treating.Common intravascular imaging technique includes
Intravascular ultrasound imaging (IVUS) and optical coherence tomography (OCT).Wherein, due to organizing scattering and decaying pole to ultrasound
It is small, there is fabulous penetration capacity to biological tissue, IVUS can be realized several millimeters to several centimetres of super large Depth Imaging, obtain
The overall structure image information of biological tissue or organ.But the image resolution ratio of ultrasonic imaging technique is lower, can not obtain group
The fine structure knitted, for the fine variation diagnostic scarce capacity of tissue early lesion.And optical image technology, especially OCT
Etc. technologies, 10~100 times of image resolution ratio higher than ultrasonic technique can be obtained using optical focus means, tissue can be obtained
Fine structure, can clearly find the early changes of tissue, but 1-2 can only be realized by the imaging method of optical focus
The imaging depth of millimeter, can not obtain the integral structure characteristic of pathological tissues.Therefore, ultrasonic technique and optical image technology have
The double-mode imaging technology of apparent the characteristics of having complementary advantages, development ultrasound and optical bond becomes a kind of trend.But it because relates to
And bimodulus probe, signal interference is easy to appear during double-mode imaging using the prior art, cannot remote high-speed transfer etc.
Problem.
Summary of the invention
Against the above technical problems, the invention discloses a kind of intravascular double-mode imaging device, the signal being effectively reduced declines
Subtract and interfere, improves the transmission speed and transmission range of signal.
In this regard, the technical solution adopted by the present invention are as follows:
A kind of intravascular double-mode imaging device comprising imaging probe, probe driving and imaging controller, OCT unit, imaging master
Machine, display, input equipment；
The OCT unit includes OCT image module, OCT acquisition module, and the OCT image module is connect with OCT acquisition module；
The imaging host includes computer, host side bus interface module and energy supply control module；
The energy supply control module connect offer with computer, OCT unit, probe driving and imaging controller, display respectively
Power supply.
The probe driving and imaging controller include photoelectricity slip ring, IVUS transmitting and receiving module, IVUS acquisition module, visit
Head motion control unit, DIC(Drive and imaging controllers, driving and imaging controller) end bus interface
Module；
The imaging probe is connect with photoelectricity slip ring, the photoelectricity slip ring respectively with OCT image module, IVUS transmitting and receiving module
Connection, the IVUS transmitting and receiving module are connect with IVUS acquisition module, the IVUS acquisition module, probe movement control unit
It is connect respectively with the end DIC bus interface module, the end DIC bus interface module, OCT acquisition module and host side bus interface
Module connection, the host side bus interface module, display, input equipment are connect with computer respectively；
The imaging probe includes the bimodulus probe, single mode OCT probe and single mode IVUS spy of integrated IVUS and OCT image element
Head；
The display is Biscreen display or the display that can carry out split screen display available.
Wherein, energy supply control module provides power supply of the whole machine and the control of each modular power source state.Display is used for operation interface
With the display of intravascular bimodulus/single mode image.Computer is for operating system software, processing imaging data and storage number
According to.OCT image module is used to issue infrared light and collects the infrared light returned, and carries out processing to the infrared light of return and be converted into
Electric signal is exported to OCT acquisition module.OCT acquisition module is used to acquire the OCT signal of OCT image module output, by electric signal
It is converted into digital signal and is transmitted to computer through host side bus interface module.Host side bus interface module is for receiving and transmitting
Control instruction and imaging data.Photoelectricity slip ring is integrated with the signal of light and electric signal between moving component and stationary parts simultaneously and passes
It is defeated.IVUS transmitting and receiving module is for emitting ultrasonic excitation signal and receiving ultrasonic echo electric signal, and by ultrasonic echo telecommunications
Number output is to IVUS acquisition module.IVUS acquisition module acquires the IVUS signal of IVUS transmitting and receiving module output, by electric signal
It is converted into digital signal and passes to host side bus interface module through the end DIC bus interface module, be finally uploaded to computer.Host
End bus interface module is for receiving and transmitting synchronously control instruction, logic control instruction and double-mode imaging data.The probe
Motion control unit can use the probe movement control device of the prior art.
It adopts this technical solution, IVUS transmitting and receiving module and IVUS acquisition module are placed in probe driving and imaging control
In device processed, reduce the transmission range of IVUS signal, the decaying of IVUS signal is effectively reduced；IVUS acquisition module is electric by IVUS simultaneously
Signal is transmitted again after being converted into digital signal, the signal interference of transmission process is effectively reduced, and support more remote
Signal transmission.And by the way of host side bus interface module and the docking of the end DIC bus interface module, realize control instruction
With the high speeds of the big datas such as signal data, at a distance transmit.
As a further improvement of the present invention, the intravascular double-mode imaging device includes data synchronization processing and logic control
Molding block, the data synchronization processing and Logic control module are connect with host side bus interface module；
The probe driving and imaging controller include imaging control panel and probe identification module；The probe movement control is single
Member includes three-dimensional motor control module and 3-D scanning telecontrol equipment interconnected, the three-dimensional motor control module respectively with
The end DIC bus interface module, imaging control panel connection；The probe identification module is connect with the end DIC bus interface module.
Wherein, imaging control panel provides the operation of fast imaging control button and status indicator lamp.Identification module of popping one's head in is used
In the type and built-in factory parameter of automatic identification access probe.Data synchronization processing and Logic control module handle dual mode data
Synchronous acquisition, processing, transmission and the control of each module status, control IVUS transmitting and receiving module letter synchronous with OCT image device
Number transmitting with receive, the synchronous data sampling of IVUS acquisition module and OCT acquisition module and be uploaded to computer.At data are synchronous
Reason and Logic control module can use the data synchronization processing and Logic control module of the prior art.Three-dimensional motor control module
Operation for drive control 3-D scanning telecontrol equipment.3-D scanning telecontrol equipment is used to drive the high speed rotation of imaging probe
And quickly retract movement.The three-dimensional motor control module, 3-D scanning telecontrol equipment can use the three-dimensional motor of the prior art
Control module and 3-D scanning telecontrol equipment.
As a further improvement of the present invention, the OCT unit is located in imaging host.Further, the data are same
Step processing and Logic control module are located in imaging host.
As a further improvement of the present invention, the OCT unit is located in probe driving and imaging controller；Further
, the OCT acquisition module is connect by the end DIC bus interface module with host side bus interface module.Further, described
Data synchronization processing and Logic control module are located in imaging host.
As a further improvement of the present invention, the OCT unit is located in probe driving and imaging controller, and data are synchronous
Processing and Logic control module also be located at probe driving and imaging controller in, the OCT acquisition module, data synchronization processing and
Logic control module passes through the end DIC bus interface module respectively and connect with host side bus interface module.
As a further improvement of the present invention, the IVUS acquisition module and OCT acquisition module are an acquisition module
Different channels or two different acquisition modules.
As a further improvement of the present invention, the OCT image module include for generate the OCT light source of infrared light, by
The infrared light that the infrared light and reference arm that object under test returns return forms the interferometer of interference signal, referring back to arm infrared light
Reference arm and convert optical signals into electric signal photodetector.
As a further improvement of the present invention, the input equipment include keyboard, mouse/trace ball, in touch screen extremely
Few one kind.
Compared with prior art, the invention has the benefit that
Compared with prior art, the invention has the benefit that
Using technical solution of the present invention, signal decaying and interference are effectively reduced, the transmission speed and biography of signal are improved
Defeated distance；The device can be compatible with the use of three kinds of modalities probe, preferably be integrated with ultrasonic technique and optical imagery skill
The advantage of art can obtain the fine and overall structure of clearer image and tissue, clearly find the early changes of tissue,
So that more accurate to the inspection of disease and reliable.
Detailed description of the invention
Fig. 1 is the module connection structure schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the appearance schematic diagram of the imaging host of the embodiment of the present invention 1.
Fig. 3 is the structural schematic diagram that the imaging probe of the embodiment of the present invention 1 is connect with probe driving and imaging controller.
Fig. 4 is the module connection structure schematic diagram of the embodiment of the present invention 2.
Fig. 5 is the module connection structure schematic diagram of the embodiment of the present invention 3.
Fig. 6 is the module connection structure schematic diagram of the embodiment of the present invention 4.
Appended drawing reference includes:
Host, 2- display is imaged in 1-, and control panel is imaged in the driving of 3- probe and imaging controller, 4- imaging probe, 5-.
Specific embodiment
Preferably embodiment of the invention is described in further detail below.
Embodiment 1
As shown in Fig. 1 ~ Fig. 3, a kind of intravascular double-mode imaging device comprising imaging probe 4, probe driving and imaging controller
3, OCT unit, imaging host 1, display 2 and input equipment.The OCT unit includes OCT image module, OCT acquisition module,
The OCT image module is connect with OCT acquisition module.The imaging host 1 include computer, host side bus interface module and
Energy supply control module.The energy supply control module respectively with computer, OCT unit, probe driving and imaging controller 3, display
The connection of device 2 provides power supply.The probe driving and imaging controller 3 are adopted including photoelectricity slip ring, IVUS transmitting and receiving module, IVUS
Collect module, probe movement control unit, the end DIC bus interface module.
The imaging probe 4 is connect with photoelectricity slip ring, and the photoelectricity slip ring connects with OCT image module, IVUS transmitting respectively
Module connection is received, the IVUS transmitting and receiving module is connect with IVUS acquisition module, the IVUS acquisition module, probe movement control
Unit processed is connect with the end DIC bus interface module respectively, and the end DIC bus interface module, OCT acquisition module and host side are total
Line Interface Module connection, the host side bus interface module, display 2, input equipment are connect with computer respectively.
The imaging probe 4 includes bimodulus probe, single mode OCT probe and the single mode of integrated IVUS and OCT image element
IVUS probe.The front end of bimodulus probe (IVUS+OCT) is integrated with IVUS and OCT image element, at the same provide IVUS and
OCT signal.The display 2 is Biscreen display.
Further, the probe driving and imaging controller 3 include imaging control panel 5, the imaging control panel 5
It is connect with probe movement control unit.
It adopts this technical solution, IVUS transmitting and receiving module and IVUS acquisition module are placed in probe driving and imaging control
In device 3 processed, the transmission range of IVUS signal is greatly reduced, effectively reduces the decaying of IVUS signal；IVUS acquisition module simultaneously
IVUS electric signal is converted into transmitting by bus module again after digital signal, the signal that transmission process is effectively reduced is dry
It disturbs, and supports more remote signal transmission.It is docked using host side bus interface module and the end DIC bus interface module
Mode realizes the high speed of the big datas such as control instruction and signal data, transmits at a distance.
The signal stream of the present embodiment are as follows:
Computer passes through to send instructions under host side bus interface module, is delivered separately to OCT by host side bus interface module
Unit and probe driving and imaging controller 3, the synchronizing ultrasound for controlling IVUS transmitting and receiving module and/or OCT image module swash
It encourages and/or infrared light emission, ultrasonic action and/or infrared light are sent to imaging probe 4 through photoelectricity slip ring, and imaging probe 4 will be believed
It number projects object under test and receives the signal of object under test return, the ultrasound echo signal and/or infrared light of return are through photoelectricity
Slip ring sends back IVUS transmitting and receiving module and/or OCT image module, and IVUS transmitting and receiving module and/or OCT image module connect
It receives return signal and converts the signal into electric signal transmission to IVUS acquisition module and/or OCT acquisition module, IVUS acquires mould
Block and/or OCT acquisition module synchronous acquisition IVUS signal and/or OCT signal, and digital signal is converted analog signals into,
IVUS digital signal is sent to computer through the end DIC bus interface module and host side bus interface module, OCT digital signal by
The output of OCT acquisition module is sent to computer through host side bus interface module, computer by after signal processing by display 2 into
Row display.
Embodiment 2
On the basis of embodiment 1, as shown in figure 4, a kind of intravascular double-mode imaging device, the OCT unit are located at imaging master
In machine, i.e., OCT image module and OCT acquisition module are located in imaging host.Data synchronization processing is equipped in the imaging host
And Logic control module, the data synchronization processing and Logic control module are connect with host side bus interface module.
The probe driving and imaging controller include imaging control panel and probe identification module.The probe movement control
Unit processed includes three-dimensional motor control module and 3-D scanning telecontrol equipment interconnected, the three-dimensional motor control module point
It is not connect with the end DIC bus interface module, imaging control panel；The probe identification module and the end DIC bus interface module connect
It connects.
The signal stream of the present embodiment are as follows:
Computer, which passes through, to send instructions under host side bus interface module to data synchronization processing and Logic control module, data synchronization
Processing and Logic control module control IVUS transmitting and receiving module and/or OCT image module synchronizing ultrasound excitation and/or it is infrared
Light emitting, ultrasonic action and/or infrared light are sent to imaging probe through photoelectricity slip ring, and signal is projected determinand by imaging probe
Body and the signal for receiving object under test return, the ultrasound echo signal and/or infrared light of return send back IVUS through photoelectricity slip ring
Transmitting and receiving module and/or OCT image module, IVUS transmitting and receiving module and/or OCT image module receive return signal simultaneously
Electric signal transmission is converted the signal into IVUS acquisition module and/or OCT acquisition module, IVUS acquisition module and/or OCT acquisition
Module synchronization acquires IVUS signal and/or OCT signal, and converts analog signals into digital signal, and IVUS digital signal is through DIC
End bus interface module and host side bus interface module are sent to data synchronization processing and Logic control module, OCT number letter
It number is exported by OCT acquisition module and through host side bus interface module to be sent to data synchronization processing and Logic control module, data
Synchronization process and Logic control module are uniformly uploaded to calculating after handling IVUS digital signal and/or OCT digital signal packing
Machine, computer will be shown simultaneously after signal algorithm processing and image reconstruction by Biscreen display.
In the present embodiment, IVUS acquisition module and OCT acquisition module are different two acquisition modules.
Embodiment 3
On the basis of embodiment 1, as shown in figure 5, a kind of intravascular double-mode imaging device, the OCT unit are located at probe and drive
In dynamic and imaging controller, i.e., OCT image module and OCT acquisition module are located in probe driving and imaging controller, the OCT
Acquisition module is connect by the end DIC bus interface module with host side bus interface module.Data are equipped in the imaging host
Synchronization process and Logic control module, the data synchronization processing and Logic control module and host side bus interface module connect
It connects.
The probe driving and imaging controller include imaging control panel and probe identification module.The probe movement control
Unit processed includes three-dimensional motor control module and 3-D scanning telecontrol equipment interconnected, the three-dimensional motor control module point
It is not connect with the end DIC bus interface module, imaging control panel；The probe identification module and the end DIC bus interface module connect
It connects.
The signal stream of the present embodiment are as follows:
Computer, which passes through, to send instructions under host side bus interface module to data synchronization processing and Logic control module, data synchronization
Processing and Logic control module control IVUS transmitting and receiving module and/or OCT image module synchronizing ultrasound excitation and/or it is infrared
Light emitting, ultrasonic action and/or infrared light are sent to imaging probe through photoelectricity slip ring, and signal is projected determinand by imaging probe
Body and the signal for receiving object under test return, the ultrasound echo signal and/or infrared light of return send back IVUS through photoelectricity slip ring
Transmitting and receiving module and/or OCT image module, IVUS transmitting and receiving module and/or OCT image module receive return signal simultaneously
Electric signal transmission is converted the signal into IVUS acquisition module and/or OCT acquisition module, IVUS acquisition module and/or OCT acquisition
Module synchronization acquires IVUS signal and/or OCT signal, and converts analog signals into digital signal, IVUS digital signal and/or
OCT digital signal is sent to data synchronization processing and logic control through the end DIC bus interface module and host side bus interface module
Molding block, data synchronization processing and Logic control module by IVUS digital signal and/or OCT digital signal packing processing after through master
Generator terminal bus interface module is uniformly uploaded to computer, computer by after signal algorithm processing and image reconstruction by Biscreen display
It shows simultaneously.
IVUS acquisition module and OCT acquisition module can be the different channels of same acquisition module in the present embodiment, can also
To be different two acquisition modules.
Embodiment 4
On the basis of embodiment 1, as shown in fig. 6, a kind of intravascular double-mode imaging device, the OCT unit are located at probe and drive
In dynamic and imaging controller, i.e., OCT image module and OCT acquisition module are located in probe driving and imaging controller, the spy
Data synchronization processing and Logic control module are equipped in head driving and imaging controller, at the OCT acquisition module, data are synchronous
Reason and Logic control module pass through the end DIC bus interface module respectively and connect with host side bus interface module.
The probe driving and imaging controller include imaging control panel and probe identification module.The probe movement control
Unit processed includes three-dimensional motor control module and 3-D scanning telecontrol equipment interconnected, the three-dimensional motor control module point
It is not connect with the end DIC bus interface module, imaging control panel；The probe identification module and the end DIC bus interface module connect
It connects.
The signal stream of the present embodiment are as follows:
Computer, which passes through, to send instructions under host side bus interface module to data synchronization processing and Logic control module, data synchronization
Processing and Logic control module control IVUS transmitting and receiving module and/or OCT image module synchronizing ultrasound excitation and/or it is infrared
Light emitting, ultrasonic action and/or infrared light are sent to imaging probe through photoelectricity slip ring, and signal is projected determinand by imaging probe
Body and the signal for receiving object under test return, the ultrasound echo signal and/or infrared light of return send back IVUS through photoelectricity slip ring
Transmitting and receiving module and/or OCT image module, IVUS transmitting and receiving module and/or OCT image module receive return signal simultaneously
Electric signal transmission is converted the signal into IVUS acquisition module and/or OCT acquisition module, IVUS acquisition module and/or OCT acquisition
Module synchronization acquires IVUS signal and/or OCT signal, and converts analog signals into digital signal, IVUS digital signal and/or
OCT digital signal is sent to data synchronization processing and logic control through the end DIC bus interface module and host side bus interface module
Molding block, data synchronization processing and Logic control module by IVUS digital signal and/or OCT digital signal packing processing after through master
Generator terminal bus interface module is uniformly uploaded to computer, computer by after signal algorithm processing and image reconstruction by Biscreen display
It shows simultaneously.
IVUS acquisition module and OCT acquisition module can be the different channels of same acquisition module in the present embodiment, can also
To be different two acquisition modules.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (8)
1. a kind of intravascular double-mode imaging device, it is characterised in that: it include imaging probe, probe driving and imaging controller,
OCT unit, imaging host, display and input equipment；
The OCT unit includes OCT image module, OCT acquisition module, and the OCT image module is connect with OCT acquisition module；
The imaging host includes computer, host side bus interface module and energy supply control module；
The energy supply control module is connect with computer, OCT unit, probe driving and imaging controller, display respectively；
The probe driving and imaging controller include photoelectricity slip ring, IVUS transmitting and receiving module, IVUS acquisition module, probe fortune
Dynamic control unit, the end DIC bus interface module；
The imaging probe is connect with photoelectricity slip ring, the photoelectricity slip ring respectively with OCT image module, IVUS transmitting and receiving module
Connection, the IVUS transmitting and receiving module are connect with IVUS acquisition module, the IVUS acquisition module, probe movement control unit
It is connect respectively with the end DIC bus interface module, the end DIC bus interface module, OCT acquisition module and host side bus interface
Module connection, the host side bus interface module, display, input equipment are connect with computer respectively；
The imaging probe includes the bimodulus probe, single mode OCT probe and single mode IVUS spy of integrated IVUS and OCT image element
Head；
The display is Biscreen display or the display that can carry out split screen display available.
2. intravascular double-mode imaging device according to claim 1, it is characterised in that: it includes data synchronization processing and patrols
Control module is collected, the data synchronization processing and Logic control module are connect with host side bus interface module；
The probe driving and imaging controller include imaging control panel and probe identification module；The probe movement control is single
Member includes three-dimensional motor control module and 3-D scanning telecontrol equipment interconnected, the three-dimensional motor control module respectively with
The end DIC bus interface module, imaging control panel connection；The probe identification module is connect with the end DIC bus interface module.
3. intravascular double-mode imaging device according to claim 1, it is characterised in that: the OCT unit is located at imaging master
In machine.
4. intravascular double-mode imaging device according to claim 1, it is characterised in that: the OCT unit is located at probe and drives
In dynamic and imaging controller, the OCT acquisition module is connected by the end DIC bus interface module and host side bus interface module
It connects.
5. intravascular double-mode imaging device according to claim 2, it is characterised in that: the OCT unit is located at probe and drives
In dynamic and imaging controller, the OCT acquisition module, data synchronization processing and Logic control module pass through the end DIC bus respectively
Interface module is connect with host side bus interface module.
6. intravascular double-mode imaging device according to claim 4 or 5, it is characterised in that: the IVUS acquisition module and
OCT acquisition module be acquisition module different channels or two different acquisition modules.
7. intravascular double-mode imaging device described in any one according to claim 1 ~ 5, it is characterised in that: the OCT image
Module includes the infrared light shape for generating the OCT light source of infrared light, the infrared light returned by object under test and reference arm return
At the interferometer of interference signal, referring back to arm infrared light reference arm and convert optical signals into electric signal photodetector.
8. intravascular double-mode imaging device described in any one according to claim 1 ~ 5, it is characterised in that: the input equipment
Including at least one of keyboard, mouse/trace ball, touch screen.
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