CN104825118B - Balloon catheter applied to OCT (optical coherence tomography) endoscopic scanning imaging, use method and OCT imaging system - Google Patents
Balloon catheter applied to OCT (optical coherence tomography) endoscopic scanning imaging, use method and OCT imaging system Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1006—Balloons formed between concentric tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00147—Holding or positioning arrangements
- A61B1/00148—Holding or positioning arrangements using anchoring means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00131—Accessories for endoscopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00147—Holding or positioning arrangements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/14—Arrangements specially adapted for eye photography
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Abstract
The invention relates to the technical field of medical instruments, and provides a balloon catheter which is matched with an endoscope and an OCT (optical coherence tomography) optical detector for use, an OCT imaging system, and a use method. The balloon catheter comprises a handle, a dual-cavity pipe, a balloon, an inner pipe, a soft head and the like; the use pressure of the balloon catheter is 3 separate atmospheric pressure; damage to a normal gullet is not caused under lower pressure, at the same time concentricity of the inner pipe and the balloon is ensured and optic imaging is facilitated.
Description
Technical field
The present invention relates to a kind of foley's tube, particularly for the foley's tube in optical coherence tomography, its use
Scanning imaging system is peeped in method, and the OCT with the foley's tube.
Background technology
Optical coherence tomography (Optical Coherence Tomography, abbreviation OCT), has been widely used in eye
Section's diagnostic field, on the basis of this technology is built upon optics, electronics and computer technology science, is collection photoelectricity and height
The new imaging technique that the multinomial front subject such as fast data acquisition and image procossing is integrated, OCT have by which high-resolution,
The advantages of high speed imaging and enjoy the concern of people, and biomedicine start to be paid attention to and apply with clinical diagnosises field.
Compared with other imaging modes such as existing CT, ultrasound, MRI, OCT has high resolution, swashs with traditional
Light Laser Scanning Confocal Microscope is compared, and the imaging depth of OCT has obvious advantage.The core technology of traditional optical probe is adopted mostly
Fibre bundle carries out light and conducts and be imaged, or is imaged using CCD technologies, and such interior pry head is only capable of detecting tissue table
The pathological changes in face, but the symptom of early-stage cancer occurs just to spy upon head in the depth of the 1-3 millimeters below epidermis, therefore traditional optical
Seem unable to do what one wishes.Also there is the interior pry head that medical imaging is carried out by ultrasonic principle at present, although biological tissue's table can be obtained
The following deeper organizational information of layer, but resolution is only millimeter magnitude, easily causes to the cancer of early stage and fails to pinpoint a disease in diagnosis.
Inner peeping type OCT technology is the OCT branches skill that last decade develops with OCT technology and is born and flourishes
Art, its core objective are that on the premise of resolution is not reduced OCT optical imaging apparatus are miniaturized, and are inside of human body internal organs pipe
Chamber provides high-resolution OCT image.This technology greatly extends the application of OCT technology so that OCT check objects are
Jing is related to various digestive tract tube chambers, big digestive tract tube chamber (such as esophagus, rectum), little digestive tract tube chamber (such as biliary tract) etc..
Barrett esophaguses refer to that a kind of pathology that the stratified squamous epithelium of distal esophagus is substituted by simple columnar epithelium is existing
As it is closely related with the generation of the esophageal carcinoma, is a kind of precancerous lesion of main adenocarcinoma of esophagus, the main basis of diagnosis of primary disease
Endoscopy, and there is delay in endoscopy, sample and there is a variety of limitations such as error, and optical coherence tomography (OCT) system
System has the advantages that fast image taking speed, high resolution and image are easy to identify, and a critical component in inner peeping type OCT systems is then
OCT miniature probes.It clinically will can be combined using endoscope or less invasive techniques with existing, stretch into inside of human body internal organs, collection
And collection is from the back-scattering light of biological tissue, and sacculus has transparency well while certain expansion can be had to normal oesophageal
Tension force, therefore as the first-selection of OCT optic probes scanning, but common dilating sacculus are guided and supported by seal wires, are filled
Medium is generally markd developing ring on liquid, and inner tube, and when full, inner tube can bend, and optic probe is during scanning
The problems such as imaging is incomplete occurs, therefore there are improved needs.
The content of the invention
It is an object of the invention to provide one kind can be used in Microendoscopic, while and the scanning of OCT optic probes can be met
Foley's tube, the foley's tube includes：Handle, an interface of the handle is HPI, and another interface is ventilation
Interface；Double lumen tube, the double lumen tube can allow OCT optic probes to pass through；Sacculus, in the front end closure of the sacculus and sacculus
There is scale；Inner tube, said inner tube are deviateed less than 200 microns under 3 atmospheric pressure with the concentricity of the sacculus；Soft head, institute
Soft head is stated for solid construction, wherein, described double lumen tube one end be connected with the handle, the other end and said inner tube and the sacculus
Connection, the sacculus are connected with the said inner tube other end with the soft head.
Traditional foley's tube need seal wire support and guide, seal wire diameter be generally 0.018in, 0.035in,
0.014in, 0.038in, the foley's tube of the present invention can pass through the OCT optics miniature probes of 0.055in.There is oil on the sacculus
Ink print scale, line thickness≤0.1mm can distinguish the direction of scanning probe, and the scanning for both not interfered with normal picture is sentenced
Disconnected also to tell scan position simultaneously on a display screen, the sacculus front end closure prevents body fluid into making to optical scanning
Into impact, while and adopt flexible material, patient's esophagus will not be scratched.The use pressure of sacculus is 3 atmospheric pressure, compared with low pressure
Normal esophageal will not be damaged under power, while the heat setting process and welding procedure of sacculus can ensure under 3 atmospheric pressure
Inner tube is deviateed less than 200 microns with the concentricity of sacculus, is easy to optical imagery.The soft head is solid construction, is prevented from
Body fluid is entered.
Preferably, the double lumen tube is connected with the handle by UV viscose glues, and other each parts adopt welding procedure
Connection.
Preferably, length fixed length of the said inner tube length according to the sacculus, and which is shorter in length than the sacculus, the ball
When capsule is welded with the soft head, certain distance will be pushed away under the sacculus so as to weld after concordant with inner tube and fixed so that sacculus
There is an elongation surplus when full, so as to matching the stretching of inner tube and keeping concentric.
Preferably due to the too thick definition that can affect scanogram of inner tube, too thin, can affect the rotation popped one's head in and
Concentricity, therefore said inner tube, exclusively for the design of OCT miniature probes, inner tube diameter is 1.4mm, and external diameter is 1.65mm.
Preferably, at 40 °～45 °, shaping time is 4～5h to the folding coiling temperature of the sacculus, compared to routine
Sacculus folding technology, this technique can keep the memory characteristic of sacculus while concentricity is ensured again.
Preferably, in the present invention, handle material can adopt Merlon, two-chamber tube material adopt block polyetheramides, ball
Capsule and inner tube material can adopt nylon and its polymer-modified, and soft head can adopt block polyetheramides.
Another object of the present invention is to provide a kind of use of the foley's tube for being applied in high-resolution OCT and peeping scanning imagery
Method, step include：Endoscope is entered into human body by human body natural's tract first；Then by the ball with OCT fibre-optical probes
Ductus bursae inserts endoscope channel, and sacculus is pushed to the position that need to be scanned；Again by handle guidewire lumen joint and OCT equipment
On joint tighten, inflatable interface is tightened with automatic inflating pump joint, and the inflation button on pointing device software is inflated, and fills
The scan button clicked on after depressed beam on software carries out image scanning, puts air-breathing button, finally terminate in air-breathing after the end of scan
Foley's tube is recalled into endoscope afterwards.
It is a further object of the present invention to provide scanning imaging system in a kind of OCT, is peeped, including sweeping laser module, interference mould
Block, detector module, data acquisition module, data processing module, image display, actuator, OCT miniature probes, charge and discharge
Gas equipment, the foley's tube, wherein,
The sweeping laser module includes high speed frequency swept laser, fibre optic isolater and fiber coupler, will swash from frequency sweep
The optical signalling of light device output is isolated with subsequent optical path, the normal work of optical signalling interference laser for preventing subsequent optical path from returning
Make；The intervention module can adopt optical fiber type Mach-Zeng Deer interferometers (MZI) or optical fiber type Michelson (Michelson)
Interferometer structure.Wherein Mach-Zeng Deer interferometer structures mainly by two fiber couplers, two optical fiber circulators and
Two optical fiber polarization controller compositions, wherein first fiber coupler typically adopts asymmetric fiber coupler, by big portion
The miniature probe of shunt excitation light output to sample arm；In reference arm with sample arm place an optical fiber circulator to collect from two
Arm reflects or back scattered optical signalling；Second fiber coupler can be using 2 × 2 fiber coupler of symmetrical expression (i.e. splitting ratio
For 50/50), to produce optical interference signal and reduce DC common-mode signal, optical fiber polarization controller is placed symmetrically on reference
In arm and sample arm, for adjusting the polarization state of two arms to obtain optimal optical interference signal.Michelson's interferometer
Structure is then made up of 2 × 2 fiber coupler of symmetrical expression, an optical fiber circulator and two optical Polarized Beam Controllers, is swept
Frequency laser is entering fiber coupler after first passing around optical fiber circulator, from reference arm and sample arm reflection or back scattered optics
Signal is producing interference signal through same fiber coupler, and optical fiber polarization controller is placed symmetrically on reference arm and sample
In product arm, for adjusting the polarization state of two arms to obtain optimal optical interference signal.Mach-Zeng Deer interferometers
(MZI) advantage is that symmetrical configuration, dispersion management be simple, detectivity is high.Michelson (Michelson) interferometer
Advantage is simple structure and will not introduce polarization mode dispersion (PMD), and both have in common that the light path in the middle of two arms
Difference determines the free spectral range (FSR) that optical clock occurs, and also finally determines the maximum imaging depth of OCT image；Detection
Device module can adopt adjustment of balance photodetector, the interferometric optical signal for being mainly used in export from intervention module to be converted into electricity
Learn signal；The data acquisition module is high speed analog-digital conversion capture card, is mainly used in for simulation electrical signal being converted into digital electrical
Signal, and it is supplied to data processing module to carry out Digital Signal Processing digital signal；The data processing module is with number
The chip (such as CPU, GPGPU, DSP, FPGA etc.) of word signal handling capacity, is mainly used in processing primary signal and being converted
For final picture signal；Described image display module is mainly used in display image signals and is responsible for the post processing and survey of image
Amount work；The actuator is made up of fiber rotation connector, motor and motorized precision translation stage, the electric rotating in actuator
Machine drives OCT miniature probes to carry out rotation sweep, while motorized precision translation stage drives actuator to move toward a direction, at this moment software
The rotation sweep data for getting and translation stage mobile data are rebuild, that is, is produced 3D rendering；The OCT miniature probes are main
For the optical signalling into inside of human body internal organs to transmit sweeping laser and gather the backscattering from biological tissue；The ball
Ductus bursae is used to expand inside of human body internal organs pipeline, eliminates gauffer and OCT miniature probes are stable at balloon center；The inflation/deflation
Equipment is mainly used in expansion of balloon catheter.
Preferably, the OCT miniature probes include single-mode fiber, are enclosed within bourdon tube；Lens subassembly, makes by spread fiber
Light be gathered at predetermined operating distance, the lens subassembly includes Glass rod and GRIN Lens, by change Glass rod
The operating distance of OCT miniature probes can be changed with the glued distance of single-mode fiber；By GRIN Lens and the gluing of Glass rod,
The clear aperature of increase GRIN Lens, and then improve the numerical aperture and lateral resolution of OCT probe.The OCT miniature probes
May also include reflecting mirror, support stainless steel tube and fluting stainless steel tube, these optical element end faces are glued with optical glue.
Wherein, described single-mode fiber one end carries sonet standard joint, and this joint can be with the fiber spinning end phase of OCT systems
Connection, the single-mode fiber are enclosed within bourdon tube (be covered with PTFE film), and bourdon tube can reduce spy with effective protection single-mode fiber
Resistance during head rotation, makes the OCT miniature probes entire scan more steady and smooth, and the sonet standard joint is stainless with supporting
Steel pipe, this stainless steel tube play a supportive role when OCT miniature probes are scanned, make entirely to pop one's head in rotation sweep when it is more steady.
The other end of the single-mode fiber is inclined-plane, glued with the Glass rod one end end face equally also for inclined-plane, and the inclination of cemented surface has
Effect reduces interference of the reflected light to flashlight, can change OCT by the glued distance of change Glass rod and single-mode fiber
The operating distance of miniature probe is reaching required expected operating distance.The other end of the Glass rod and the GRIN Lens
With 0 ° of angle end face gluing post package in fluting stainless steel tube, the use of Glass rod not only increases the operating distance of miniature probe,
And the numerical aperture of miniature probe is increased, and the increase of numerical aperture also causes the raising of lateral resolution, while this sets
Meter has also greatly shortened the length of GRIN Lens, it is ensured that the excessively curved property of miniature probe so that whole miniature probe can pass through
Endoscopic forceps channel is directly entered human body esophagus together with conduit.The GRIN Lens are glued with the Glass rod, wherein self-focusing
Lens are coated with anti-reflection film with the face of air contact, it is possible to decrease reflection of the light between optical surface and increase light transmission, so as to
Impact of the reflected light due to optical surface to flashlight is reduced, the sensitivity of OCT miniature probes is improve.The single-mode fiber with
The angle on the glued inclined-plane of Glass rod is 4 °～12 °.The reflecting surface of the reflecting mirror is packaged in not towards stainless steel tube otch
In rust steel pipe, in order to reduce impact of the light source by the astigmatism of cylindrical inner tube to being imaged, reflecting mirror herein can be according to circle
The refractive index of the internal-and external diameter and inner tube material of cylindrical inner tube and design cylindrical mirror, offset inner tube astigmatism affect, correction
The shape of hot spot, reaches the purpose for improving image quality.
Preferably, inflation/deflation equipment application peeps scanning imaging system in the OCT, i.e., including sweeping laser module, do
Relate to module, detector module, data acquisition module, data processing module, image display, actuator, foley's tube,
OCT miniature probes, and inflation/deflation equipment, the inflation/deflation equipment be automatic inflatable/air equipment, the automatic inflatable/air equipment bag
Include：Control and display module, air pump, inflation/deflation electromagnetic valve, pressure transducer, explosion-proof pressure sensor, mechanical pressure switches.Institute
State automatic inflatable/air equipment and realize automatic inflating and air-breathing, and the function with the different pneumatic parameters of setting, can be to different rule
The sacculus of lattice carries out inflation/deflation, and equipment stops inflation after the atmospheric pressure value of setting is reached during to inflated, and has
Pressure defencive function.Its attainable effect is：First, operation of the doctor to the manual inflation/deflation of sacculus is eliminated, doctor is shortened
Time of raw inflation/deflation, and improve safety, it is to avoid sacculus overcharges the risk of blast；Secondly, accurate air pressure control makes
Shape coincidence after inflated is guaranteed, due to optical imagery it is quick for the shape of the scanned object that sacculus is propped up
Sense, preferably, doctor can be for the view data after scanning for the repeatability that this is just taken multiple scan to same scanned object
Compare；Again, when emergency is processed, while being capable of achieving automatic deflation, doctor does other operations.
Preferably, scanning imaging system is peeped in the OCT is included by the intervention module, the detector module and optics
The optical clock module of clock conversion circuit module composition, wherein, interferometer module can be dry using all -fiber formula Mach-Zehnder
Interferometer (MZI) structure, is mainly made up of two fiber couplers, wherein second bonder is 2 × 2 fiber coupling of symmetrical expression
Device, is divided into two-way light first at the first fiber coupler, first optical fiber of the two-way light respectively through two sections of fixed optical path differences
With the second optical fiber, interfere at the second fiber coupler.Detector module can adopt adjustment of balance photodetector, mainly
For the interferometric optical exported from intervention module signal is converted into electrical signal.The optical interference signal produced from MZI is by one
After individual balance photodetector is converted to electrical signal, through optical clock conversion circuit module, that is, 90 degree of wideband is sequentially passed through
Phase shifter, zero-crossing comparator, XOR gate, OR gate and optical clock signal output module and be converted on frequency domain it is uniform,
The optical clock signal of time domain up-conversion rate.Wherein, wideband 90-degree phase shifter is mainly used in the phase shift of MZI electrical signal
90 degree, zero-crossing comparator is mainly used in carrying out Zero-cross comparator to original MZI electrical signal and the MZI electrical signal after phase shift to turn
Digital signal is changed to, and the zero point of MZI signals is uniformly distributed on frequency domain, therefore the digital signal produced after Zero-cross comparator is upper
Rise edge or trailing edge is also uniformly distributed on frequency domain, XOR gate is mainly used in merging two dagital clock signals, to obtain
Obtain and two clock signals are produced in a free spectral range (FSR), OCT is so increased under the premise of FSR is not increased maximum
Imaging depth, reduces the shake (jitter) produced by optical signalling.And as frequency swept laser is in two adjacent scannings
Between be constantly present some free times, optical clock signal also need to by an OR gate blank space insert some it is false when
Clock signal can be with normal work to ensure high speed analog-digital conversion capture card, and OR gate is realized true optical clock signal and false clock
Signal merge function, optical clock signal output module be mainly used in merging after true optical clock signal with vacation when
Clock signal is transported to data acquisition module.By optical clock module described used in scanning imaging system is peeped in OCT, can
Requirement of the reduction to data Collection ＆ Processing System, and the collection of redundancy is reduced, mitigate the burden of storage system, so as to carry
The integrated level of high whole OCT systems, and then system cost is reduced, and the signal to noise ratio of picture signal can also be improved, reduce detection
Sensitivity decays, so as to improve the definition of image.
Preferably, peeped in OCT using general image processor (GPGPU) and process in scanning imaging system OCT signals
Method, the method include (1) data acquisition；(2) data transfer；(3) data processing；(4) it is transferred to image and shows four, storehouse
Step.
Wherein, (1) data acquisition, the present invention obtain FD-OCT initial datas by outside collecting device；
(2) data transfer, the FD-OCT initial datas obtained in data collection steps are placed on computer system or embedding
In embedded system internal memory, these data are deposited in Installed System Memory in units of frame, (such as data accumulation after certain condition is met
Enough frames or multiframe), these data can transmit setting to general image processor by data/address bus (such as PCI Express)
In standby internal memory；As bus transfer speed is relatively slow, while transmission data, general image processor is transmitted last
OCT initial datas into device memory carry out parallel processing.This kind of method has efficient Parallel signal processing ability, can be real
Existing Real-time digital signal processing, greatly improves efficiency of transmission, saves bus resource；
(3) data processing, the Digital Signal Processing carried out in general image processor are divided into three steps：One dimension word is adopted again
Sample, one-dimensional fast fourier transform (FFT) and calculating amplitude normalization.Pass through two in a wherein dimension word resampling steps
Sublinear texture lookups realize quick once one-dimensional cubic interpolation to improve the precision of resampling；
(4) it is transferred to image and shows storehouse, the data handled well are positioned in the internal memory that image shows storehouse, image shows that storehouse can
To directly invoke, by bus transfer, efficiency of transmission is greatly improved, bus resource is saved, with efficient without the need for again
Parallel signal processing ability, realizes Real-time digital signal processing, portable high, due to showing that storehouse can nothing with popular image
Seam is combined, and also improves motility that software shows (for example：Can also locate after being carried out to image by general image processor
Reason), it is capable of achieving relatively low hardware and software development cost.
Description of the drawings
Fig. 1 is the balloon catheter structure schematic diagram of the present invention；
Fig. 2 is to peep scanning imaging system schematic diagram in the OCT with foley's tube of the present invention；
Fig. 3 is the OCT miniature probes material object component diagram of the present invention；
Fig. 4 is the OCT miniature probe key position amplification profiles of the present invention；
Fig. 5 is the inflation/deflation device structure schematic diagram of the present invention；
Fig. 6 is the inflation/deflation equipment workflow diagram of the present invention；
Fig. 7 is the optical clock module diagram of the present invention；
Fig. 8 is the optical clock signal generating process schematic diagram of the present invention；
Fig. 9 is to peep scanning imaging system schematic diagram in the OCT with optical clock module of the present invention；
Figure 10 is the FD-OCT signal processing steps of the present invention；
Figure 11 is that the GPGPU data transfers of the present invention and signal processing occur schematic diagram parallel；
Figure 12 is the whole implementation structural representation of the present invention；
Figure 13 is OCT miniature probe operating distances, glued distance and the lateral resolution curve relation figure of the present invention；
Figure 14 is the healthy animal esophaguses scanning figure of the present invention；
Figure 15 is the healthy animal esophaguses scanning figure partial enlarged drawing of the present invention；
Figure 16 is the healthy animal esophaguses 3D rendering of the present invention.
Drawing reference numeral explanation
1st, single-mode fiber, 2, bourdon tube, 3, Glass rod, 4, GRIN Lens, 5, reflecting mirror, 6, fluting stainless steel tube, 7,
Support stainless steel tube, 8, soft head, 9, inner tube, 10, sacculus, 11, double lumen tube, 12, handle, 13, ventilation interface, 14, HPI,
81st, squamous epithelial layer (SE), 82, lamina propria (LP), 83, muscularis mucosae (MM), 84, tela submucosa (SM), 85, intrinsic
Basic unit (MP),
91st, there is the MZI electrical signal of 90 degree of phase shifts Jing after wideband 90-degree phase shifter, 92, phase shift does not occur
MZI electrical signal, 93, signal 91 carry out the digital signal after Zero-cross comparator, 94, signal 92 carry out the numeral after Zero-cross comparator
Signal, 95, false clock signal, 96, digital signal 93 and 94 Jing XOR gates merge after signal,
101st, air pump, 102, inflation electromagnetic valve, 103, pressure transducer, 104, choke valve, 105, pressure transducer, 106,
Explosion-proof pressure sensor, 107, suction solenoid valve, 108, mechanical pressure switches.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
The invention will be further described with embodiment below in conjunction with the accompanying drawings, but the present invention is not limited to following enforcements
Example.
Embodiment 1
As shown in figure 1, the foley's tube of scanning imaging system is peeped in a kind of OCT, including handle 12, of handle 12 connects
Mouth is HPI 14, and another interface is ventilation interface 13；Double lumen tube 11, can allow OCT optic probes to pass through；Sacculus 10,
There is scale on the front end closure of sacculus 10 and sacculus；Inner tube 9, inner tube 9 are deviateed not under 3 atmospheric pressure with the concentricity of sacculus 10
More than 200 microns；Soft 8, be solid construction, wherein, 11 one end of double lumen tube is connected with handle 12, the other end and inner tube 9 and ball
One end connection of capsule 10, sacculus 10 are connected with soft 8 with the other end of inner tube 9, and double lumen tube 11 passes through UV viscose glues and 12 phase of handle
Even, other each several parts are connected by way of welding.
12 material of handle is Merlon, and double lumen tube 11 and soft 8 materials are block polyetheramides, sacculus 10 and inner tube 9
Material is nylon and its polymer-modified.
There is ink printing scale on sacculus 10, line thickness≤0.1mm can distinguish the direction of scanning probe, both will not
The scanning of normal picture is affected to judge also to tell scan position on a display screen simultaneously.Scale is printed on double lumen tube 11, because
This, doctor can interpolate that the position of scanning.
Traditional foley's tube need seal wire support and guide, seal wire diameter be generally 0.018in, 0.035in,
0.014in, 0.038in, in the present embodiment, the double lumen tube 11 of OCT foley's tubes can pass through 0.055inOCT optic probes.
It is due to the too thick definition that can affect scanogram of inner tube, too thin, rotation and the concentricity popped one's head in, the present embodiment can be affected
9 internal diameter of middle inner tube is 1.4mm, and external diameter is 1.65mm, is designed exclusively for OCT probe.Said inner tube length is according to the sacculus
Length fixed length, and which is shorter in length than the sacculus, when the sacculus is welded with the soft head, will push away a spacing under the sacculus
From so as to weld after concordant with inner tube and fixed so that sacculus has an elongation surplus when full, so as to match the drawing of inner tube
Stretch and keep and be concentric.
Embodiment 2
A kind of using method of foley's tube as described in example 1 above, step include：
1. endoscope enters human body by human body natural's tract.
2. by the insertion endoscope channel of the foley's tube with OCT fibre-optical probes.
3. sacculus is pushed to the position that need to be scanned.
4. handle guidewire lumen joint is tightened with the joint on OCT equipment, inflatable interface is tightened with automatic inflating pump joint.
5. the inflation button on pointing device software is inflated.
6. the scan button clicked on after inflation terminates on software carries out image scanning.
7. air-breathing button is put after the end of scan.
8. foley's tube is recalled into endoscope after air-breathing terminates.
Embodiment 3
As shown in Fig. 2 scanning imaging system in a kind of OCT, is peeped, including sweeping laser module, intervention module, detector mould
Block, data acquisition module, data processing module, image display, actuator, OCT miniature probes, inflation/deflation equipment and
Foley's tube shown in Fig. 1, wherein,
The sweeping laser module includes high speed frequency swept laser, fibre optic isolater and fiber coupler, will swash from frequency sweep
The optical signalling of light device output is isolated with subsequent optical path, the normal work of optical signalling interference laser for preventing subsequent optical path from returning
Make；The intervention module can adopt optical fiber type Mach-Zeng Deer interferometers (MZI) or optical fiber type Michelson (Michelson)
Interferometer structure.Wherein Mach-Zeng Deer interferometer structures mainly by two fiber couplers, two optical fiber circulators and
Two optical fiber polarization controller compositions, wherein first fiber coupler typically adopts asymmetric fiber coupler, by big portion
The miniature probe of shunt excitation light output to sample arm；In reference arm with sample arm place an optical fiber circulator to collect from two
Arm reflects or back scattered optical signalling；Second fiber coupler can be using 2 × 2 fiber coupler of symmetrical expression (i.e. splitting ratio
For 50/50), to produce optical interference signal and reduce DC common-mode signal, optical fiber polarization controller is placed symmetrically on reference
In arm and sample arm, for adjusting the polarization state of two arms to obtain optimal optical interference signal.Michelson's interferometer
Structure is then made up of 2 × 2 fiber coupler of symmetrical expression, an optical fiber circulator and two optical Polarized Beam Controllers, is swept
Frequency laser is entering fiber coupler after first passing around optical fiber circulator, from reference arm and sample arm reflection or back scattered optics
Signal is producing interference signal through same fiber coupler, and optical fiber polarization controller is placed symmetrically on reference arm and sample
In product arm, for adjusting the polarization state of two arms to obtain optimal optical interference signal.Mach-Zeng Deer interferometers
(MZI) advantage is that symmetrical configuration, dispersion management be simple, detectivity is high.Michelson (Michelson) interferometer
Advantage is simple structure and will not introduce polarization mode dispersion (PMD), and both have in common that the light path in the middle of two arms
Difference determines the free spectral range (FSR) that optical clock occurs, and also finally determines the maximum imaging depth of OCT image；Detection
Device module can adopt adjustment of balance photodetector, the interferometric optical signal for being mainly used in export from intervention module to be converted into electricity
Learn signal；The data acquisition module is high speed analog-digital conversion capture card, is mainly used in for simulation electrical signal being converted into digital electrical
Signal, and it is supplied to data processing module to carry out Digital Signal Processing digital signal；The data processing module is with number
The chip (such as CPU, GPGPU, DSP, FPGA etc.) of word signal handling capacity, is mainly used in processing primary signal and being converted
For final picture signal；Described image display module is mainly used in display image signals and is responsible for the post processing and survey of image
Amount work；The actuator is made up of fiber rotation connector, motor and motorized precision translation stage, is mainly used in driving OCT micro-
Probe mechanical spiral scans to obtain OCT image；The OCT miniature probes are mainly used in into inside of human body internal organs to transmit frequency sweep
The optical signalling of the laser collection backscattering from biological tissue；The foley's tube is used to expand inside of human body internal organs pipe
Road, eliminates gauffer and OCT miniature probes is stable at balloon center；The inflation/deflation equipment is mainly used in expansion of balloon catheter.
Embodiment 4
Scanning imaging system is peeped in a kind of OCT, it is similar to Example 3, except that described OCT miniature probes such as Fig. 3
With shown in Fig. 4：Single-mode fiber 1 is enclosed within bourdon tube 2, and bourdon tube 2 reduces probe while effective protection fragile optical fiber
Resistance during rotation；3 one end of Glass rod is glued with 4 zero degree edged surface of GRIN Lens, and the other end inclines gluing with single-mode fiber 1,
The operating distance of OCT probe can be changed to reach by the glued distance of change 1 two end faces of Glass rod 3 and single-mode fiber
Expected required operating distance, and then improve the numerical aperture and lateral resolution of OCT probe；Reflecting mirror 5 is cylindrical surface for reflection
Mirror is simultaneously packaged in fluting stainless steel tube 6, and the reflecting surface of reflecting mirror 5 can reduce light towards the otch of fluting stainless steel tube 6
Impact of the source by the astigmatism of cylindrical inner tube to being imaged.
Such as Fig. 3 and Fig. 4, the OCT miniature probes of scanning imaging system, including single-mode fiber 1 in a kind of OCT, are peeped, bourdon tube 2,
Glass rod 3, GRIN Lens 4, reflecting mirror 5, fluting stainless steel tube 6 and support stainless steel tube 7, these optical element end faces are used
Optical glue is glued.Specifically, reflecting mirror 5 is loaded in fluting stainless steel tube 6, is then placed on point A/B glue in frock, then
Point UV glue under microscope, Glass rod 3 and GRIN Lens 4 are assembled；Single-mode fiber 1 is penetrated in bourdon tube 2, then will be assembled
Glass rod 3 and GRIN Lens 4, single-mode fiber 1 and 2 point of use UV glue of bourdon tube assembling, finally by the bourdon tube after assembling
Assembly is put in fluting stainless steel tube 6, is filled up using A/B glue at edge voids.
Stainless steel spring pipe 2 (being covered with PTFE film) is cased with outside single-mode fiber 1, in the same of the fragile optical fiber of effective protection
When, resistance during probe rotation is reduced, makes miniature probe scan more steady and smooth.Support the Main Function of stainless steel tube 7
To play a supportive role when OCT probe is scanned, make entirely to pop one's head in rotation sweep when more steady, the stainless steel tube 6 of slotting
Notch can be such that light beam is irradiated on sample by this notch.
Anti-reflection film can reduce reflection of the light between optical surface and increase light transmission, so as to reduce due to optical surface
Impact of the reflected light to flashlight, therefore, in the present embodiment, GRIN Lens 4 are coated with anti-reflection film with the face of air contact, together
When 3 one end of Glass rod and 4 zero degree edged surface of GRIN Lens it is glued, improve sensitivity and the resolution of miniature probe.Glass rod 3
The other end has certain angle of inclination with the cemented surface of single-mode fiber 1, and in the present embodiment, the angle of inclination of cemented surface can be herein
8 °, the inclination of cemented surface effectively reduces interference of the reflected light to flashlight, generally, can be by changing this two ends
The glued distance in face is changing the operating distance of OCT probe to reach expected required operating distance.As 45° angle installs anti-
Penetrate mirror 5 so that incident ray is vertical with reflection light so as to cause light to disturb, miniature probe front end installs 40 ° in the present embodiment
Corner reflector 5, reflecting mirror 5 be packaged in fluting stainless steel tube 6 and reflecting surface towards fluting stainless steel tube 6 otch, while
In order to reduce impact of the light source by the astigmatism of cylindrical inner tube to being imaged, the reflecting mirror in the present embodiment herein is according to cylinder
The refractive index of the internal-and external diameter and inner tube material of shape inner tube and design cylindrical mirror.
Embodiment 5
Scanning imaging system is peeped in a kind of OCT, it is similar to embodiment 3 or 4, except that the inflation/deflation equipment is certainly
Dynamic inflation/deflation equipment, as shown in figure 5, the automatic inflatable/air equipment includes：Power pack, control and display portion and air pump and
Its control system part, the air pump and its control system part include：Air pump, inflation/deflation electromagnetic valve, choke valve, pressure sensing
Device, explosion-proof pressure sensor, mechanical pressure switches.As shown in fig. 6, the use process of the automatic inflatable/air equipment includes：
1) gas replenishment process：The parameter such as user's setting 10 air pressure of sacculus, inflationtime, sends inflation order, control system first
System reads the data of pressure transducer 103,105, and if less than the air pressure of user's setting, then booster air pump 101, open inflation electricity
Magnet valve 102, choke valve 104, read the value of feedback of pressure transducer 103,105, in real time until being charged to setting in gas replenishment process
Atmospheric pressure value, closes air pump 101, closes choke valve 104, inflation electromagnetic valve 102；
2) deflation course：User sets the parameters such as 10 air pressure of sacculus, deflation time first, and control system reads pressure sensing
The data of device 105, if greater than the air pressure of user's setting, then booster air pump 101, open suction solenoid valve 107, choke valve 104,
Read the value of feedback of pressure transducer 105 in deflation course in real time, the atmospheric pressure value until being drawn onto setting is closed 101 pump of gas, closed
Choke valve 104, suction solenoid valve 107.
During inflation/deflation, system is monitored to the value of feedback of explosion-proof pressure sensor 106 in real time, if it exceeds user
Air pressure upper limit set value, then carry out software program protection immediately, closes air pump 101, and reports to the police；Mechanical pressure switches 108 are hard
Part is protected, and such as exceedes setting value, then switch is opened, and pressure release is protected.
Embodiment 6
As shown in fig. 7, a kind of optical clock module peeped in OCT used in scanning imaging system, which includes interfering mould
Block, detector module and optical clock conversion circuit module, the optical clock conversion circuit module include 90 degree of phase shifts of wideband
Device, zero-crossing comparator and XOR gate, the circuit of OR gate composition and optical clock signal output module.Wherein, intervention module
Using all -fiber formula Mach-Zender interferometer (MZI) structure, mainly it is made up of two fiber couplers, wherein second coupling
Clutch be 2 × 2 fiber coupler of symmetrical expression, be divided into two-way light at the first fiber coupler first, the two-way light respectively through
First optical fiber and the second optical fiber of two sections of fixed optical path differences, interferes at the second fiber coupler.Detector module is by height
Speed balance photodetector composition, the interferometric optical signal for being mainly used in export from intervention module are converted into electrical signal.Jing
A MZI electrical signal parts after detector module conversion are transferred to wideband 90-degree phase shifter, and another part is transferred to zero passage ratio
Compared with device, 90 degree that the electrical signal of wideband 90-degree phase shifter occurs of phase shift is transferred to, zero-crossing comparator is mainly used in right
The signal for phase shift occurring and phase shift not occurring carries out Zero-cross comparator to be converted to digital signal.XOR gate is mainly used in
Two dagital clock signals are merged, two clock signals is produced in a free spectral range (FSR) to obtain, so
OCT maximum imaging depths are increased under the premise of FSR is not increased, the shake (jitter) of optical signalling generation is reduced.By
Some free times are constantly present between two adjacent scanning in frequency swept laser, optical clock signal is also needed to by one
OR gate insert some false clock signals in blank space with ensure high speed analog-digital conversion capture card can with normal work, OR gate realize by
The function that true optical clock signal is merged with the clock signal of vacation.Optical clock signal output module is mainly used in after merging
True optical clock signal with vacation clock signal be transported to data acquisition module.
As shown in figure 8,91 is the MZI electrical signal that 90 degree of phase shifts occur Jing after wideband 90-degree phase shifter, 92 for not
There is the MZI electrical signal of phase shift, 93 is that the MZI signals 91 that phase shift occurs carry out the numeral letter after Zero-cross comparator
Number, 94 is that the MZI signals 92 that phase shift does not occur carry out the digital signal after Zero-cross comparator, because the zero point of MZI signals is in frequency
It is uniformly distributed on domain, therefore the rising edge or trailing edge of the digital signal produced after Zero-cross comparator is also uniformly distributed on frequency domain,
96 is the signal after the digital signal 93 that is evenly distributed and 94 Jing XOR gates merge on frequency domain, and 95 is false clock signal, 95
The optical clock signal after Jing OR gates merge is collectively constituted with 96.
As shown in figure 9, scanning imaging system is peeped in a kind of OCT, and it is similar to embodiment 3-5, except that including frequency sweep
Laser module, optical clock module, data acquisition module, data processing module, image display, actuator, the micro- spies of OCT
Head and foley's tube and inflation/deflation equipment, wherein：Described optical clock module is as shown in fig. 7, comprises intervention module, detection
Device module and optical clock conversion circuit module, the optical clock conversion circuit module include wideband 90-degree phase shifter, zero passage
Comparator and XOR gate, the circuit of OR gate composition and external timing signal output module, from the optical interference letter that MZI is produced
Number be converted to after electrical signal by a balance photodetector, through one by wideband 90-degree phase shifter, zero-crossing comparator with
And XOR gate composition circuit and be converted on frequency domain it is uniform, in the optical clock signal of time domain up-conversion rate, OR gate will be true
Real optical clock signal is merged with the clock signal of vacation with the normal work of high speed analog-digital conversion capture card.
The sweeping laser module includes high speed frequency swept laser, fibre optic isolater and fiber coupler, will be from frequency sweep
The optical signalling of laser instrument output is isolated with subsequent optical path, the normal work of optical signalling interference laser for preventing subsequent optical path from returning
Make, and the output of sub-fraction sweeping laser is separated to optical clock module, most of laser is continued to output；The optical clock
Module includes intervention module, detector module and optical clock conversion circuit module, be mainly used in obtaining it is uniform on frequency domain,
The optical clock signal of time domain up-conversion rate；The data acquisition module can adopt high speed analog-digital conversion capture card, mainly with light class hour
Original image signal is gathered on the basis of the optical clock signal of clock module output, and is supplied to data processing module to be processed；
The data processing module is the chip with digital signal processing capability (such as CPU, GPGPU, DSP, FPGA etc.), is mainly used in
Final picture signal is processed and is converted into primary signal；Described image display module is mainly used in display image signals
And it is responsible for the post processing and measurement work of image；The actuator is by fiber rotation connector, motor and electric translation
Platform is constituted, and is mainly used in driving OCT miniature probes mechanical spiral to scan to obtain OCT image；The OCT miniature probes be mainly used in into
The optical signalling for entering inside of human body internal organs to transmit sweeping laser and gather the backscattering from biological tissue；The foley's tube
For expanding inside of human body internal organs pipeline, eliminate gauffer and OCT miniature probes are stable at into balloon center；The inflation/deflation equipment master
Expansion of balloon catheter to be used for.
Embodiment 7
Scanning imaging system is peeped in a kind of OCT, it is similar to embodiment 3-6, except that utilizing general image processor
Process the scheme of OCT signals as shown in Figure 10, including (1) data acquisition being sequentially connected；(2) data transfer；(3) data processing
(4) it is transferred to image and shows these steps of storehouse, wherein in data transfer as bus transfer speed is relatively slow, is passing
While transmission of data, the OCT initial datas transmitted into device memory by the general image processor last time carry out parallel processing,
Its parallel transmission is as shown in figure 11 with processing procedure；The process of data processing is divided into three steps：It is one dimension word resampling, one-dimensional quick
Fourier transform (FFT) and calculating amplitude normalization, wherein, pass through two sublinear textures in a dimension word resampling steps
Search and realize quick once one-dimensional cubic interpolation to improve the precision of resampling.
As shown in Figure 10, a kind of scheme of utilization general image processor process OCT signals includes (1) number being sequentially connected
According to collection；(2) data transfer；(3) data processing and (4) are transferred to image and show these steps of storehouse.
Wherein, (1) data acquisition, the present invention obtain FD-OCT initial datas by outside collecting device；
(2) data transfer, the FD-OCT initial datas obtained in data collection steps are placed on computer system or embedding
In embedded system internal memory, these data are deposited in Installed System Memory in units of frame, (such as data accumulation after certain condition is met
Enough frames or multiframe), these data can be transmitted to general image processor by data/address bus (such as PCI Express)
(GPGPU) in device memory；Due to bus transfer speed it is relatively slow, while transmission data, general image processor
The OCT initial datas transmitted into device memory by last time carry out parallel processing.
For example：As shown in Figure 11, when the initial data of n-th frame is transferred to the same of general image processor device internal memory
When, the initial data of the (n-1)th frame is carried out Digital Signal Processing simultaneously in general image processor, and at data transfer and place
Reason carries out frame synchronization after terminating, i.e., the side completed after wait is tied by the side that either data transfer or data processing are completed
Shu Houzai carries out the operation of next frame, and transmitting/process model by this parallel signal effectively can improve at general image
The data processing speed of reason device.
(3) data processing, as shown in Figure 10, the Digital Signal Processing carried out in general image processor is divided into three steps：
One dimension word resampling, one-dimensional fast fourier transform (FFT) and calculating amplitude normalization.Wherein digital resampling can be with
By the built-in texture lookups functional realiey of image processor (GPU), the built-in texture lookups function of image processor is to interpolation
Two-dimensional linear interpolation can be automatically obtained, and the texture lookups module of image processor has to interpolation special hardware excellent
Change, relative to general general image processor interpolation speed faster, insert especially for the non-equidistant in OCT signal processing
Value；By accurately arranging the lookup point in a dimension, the built-in texture lookups functional realiey one of image processor can be passed through
Dimension line style interpolation.On this basis, quick once one-dimensional cubic interpolation is realized by two sublinear texture lookups, so as to raising
The precision of resampling, as texture lookups module has carried out special optimization to non-equidistant interpolation, this method is than direct three times
Interpolation implements on general image processor that amount of calculation is less, computational efficiency is higher；FFT can pass through common commercial base
Realize in the numerical computations storehouse (such as cuFFT storehouses or OpenCL FFT storehouses of nVidia) of image processor；Calculating amplitude normalizing
Change then for example phase can be write using the CUDA storehouses that nVidia is provided by oneself writing the realization of image processor program
The kernel function (kernel function) answered is realized the quick traversal to 2-D data and is calculated with normalization with realizing amplitude.
(4) it is transferred to image and shows storehouse, the data handled well are positioned in the internal memory that image shows storehouse, image shows that storehouse can
To directly invoke, by bus transfer, efficiency of transmission is greatly improved, bus resource is saved, with efficient without the need for again
Parallel signal processing ability, realizes Real-time digital signal processing, portable high, due to showing that storehouse can nothing with popular image
Seam is combined, and also improves motility that software shows (for example：Can also locate after being carried out to image by general image processor
Reason), it is capable of achieving relatively low hardware and software development cost.
Embodiment 8
As shown in figure 12, a kind of miniature probe that OCT image scanning is carried out for human body esophaguses, by miniature probe from balloon proximal
The insertion of handle guidewire lumen is until in sacculus inner tube 9, being connected to automatic inflation pump by sacculus handle ventilation interface 13 and (not showing in figure
Go out), nominal pressure will be inflated in sacculus 10, in order to esophagus is spread, the sacculus 10 and inner tube 9 are all optical clears
Material is made, with fabulous light transmission.The effect of sacculus 10 is extension esophagus reducing esophagus wrinkle and by OCT miniature probes
Within the scope of being fixed on its operating distance.About between 8-10mm, this is also that esophagus is fully deployed to the radius of the extension of sacculus 10
Radius afterwards, therefore, relatively large operating distance (about in 8-10mm) is the spy that OCT miniature probes must have
Property.
Be specifically designed Glass rod 3 in the present embodiment, it is aforementioned in the glue for changing Glass rod 3 and single-mode fiber 1 already mentioned above
The operating distance that distance can change miniature probe is closed, this miniature probe is used for human body esophagus, operating distance is led to about in 8-10mm
The glued distance crossed calculating and test 1 two sides of Glass rod 3 and single-mode fiber should be less than 0.3mm.The design application of Glass rod 3 is not only
OCT miniature probes are enable to be operated in the range of longer operating distance, moreover it is possible to change the numerical aperture and lateral resolution of miniature probe.
Numerical aperture is as follows with the clear aperature relation of optical element：
Wherein, clear aperatures of the D for optical element, W.D is operating distance, and N.A is numerical aperture, when operating distance W.D.
One timing, numerical aperture are directly proportional to the clear aperature (D) of optical element, due to lacking for GRIN Lens processing technique itself
Fall into, clear aperature can only achieve 80% of its diameter or so, and leading portion increases thang-kng plus the effect of expanding is played after Glass rod
Aperture.
The relation of resolution and numerical aperture is as follows：
Wherein, λ is definite value for lambda1-wavelength, and lateral resolution △ X is proportional to numerical aperture (N.A), i.e. numerical aperture
It is bigger, lateral resolution higher (numerical value is less).
In summary, the use of Glass rod 3 not only increases the operating distance of miniature probe, and increases the number of miniature probe
Value aperture, and the increase of numerical aperture also causes the raising of lateral resolution, while this design, has also greatly shortened autohemagglutination
The length of focus lens, it is ensured that the excessively curved property of miniature probe, so whole miniature probe still can be led with sacculus by endoscopic forceps channel
Pipe is directly entered human body esophagus together.This design effectively, makes the lateral resolution of probe be about 10-30 microns, operating distance
Relation such as Figure 13 of the lateral resolution of 8-10 millimeters, operating distance and miniature probe can be reached.The diameter of whole miniature probe is less than
1.5 millimeters, the diameter of 1.0 millimeters of GRIN Lens of diameter, whole miniature probe is such as adopted to be less than 1.3 millimeters；Diameter 0.7 is adopted such as
Millimeter GRIN Lens, the diameter of whole miniature probe are less than 1.0 millimeters；0.5 millimeter of GRIN Lens of diameter are adopted such as, it is whole micro-
The diameter of probe is less than 0.7 millimeter.
Figure 14 is the one section of healthy animal esophaguses image obtained by OCT foley's tubes endoscope, and picture size is 1200
Transversal scanning number × 4096 longitudinal scanning, sweep speed are 0.2cm/3s, and scale is 1mm.Figure 15 is Figure 14 healthy animal esophaguses
The partial enlarged drawing of image, recognizable figure layer include, 81：Squamous epithelial layer (SE), 82：Lamina propria (LP), 83：Muscularis mucosae
(MM)、84：Tela submucosa (SM) and 85：Intrinsic basic unit (MP).Figure 16 is to carry out tube chamber table by scanning imaging system is peeped in OCT
Then scan data is carried out the healthy animal esophaguses 3D rendering that software rebuilds generation by face and depth scan.
Only it is the preferred implementation of the application described in upper, makes skilled artisans appreciate that or realizing the application's
Invention.For various modifications and combination of these embodiments will be apparent for a person skilled in the art, this
General Principle defined in text can be real in other embodiments in the case of without departing from spirit herein or scope
It is existing.Therefore, the application will not be limited in the embodiments shown herein, and be to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (9)
1. a kind of foley's tube for being applied in OCT peep scanning imagery, it is characterised in that the foley's tube includes：
Handle, an interface of the handle is HPI, and another interface is ventilation interface；
Double lumen tube, the double lumen tube allow OCT miniature probes to pass through；
Sacculus, has scale on the front end closure of the sacculus and sacculus；
Inner tube, length fixed length of the said inner tube length according to the sacculus, and inner tube length is shorter than the length of the sacculus, it is described
Inner tube is designed exclusively for OCT miniature probes, and inner tube diameter is 1.4mm, and inner tube external diameter is 1.65mm, said inner tube and the sacculus
Concentricity deviates less than 200 microns under 3 atmospheric pressure；
Soft head, the soft head are solid construction, when the sacculus is welded with the soft head, will push away certain distance under the sacculus,
Make which concordant with inner tube and weld after fixed, wherein,
One end of the double lumen tube is connected with the handle, the other end and said inner tube one end and the sacculus of the double lumen tube
One end connection, the other end of the sacculus other end and said inner tube is connected with the soft head.
2. the foley's tube for being applied in OCT peep scanning imagery according to claim 1, it is characterised in that：The sacculus
Conduit adopts 0.055in OCT miniature probes, it is not necessary to which seal wire is supported and guided.
3. the foley's tube for being applied in OCT peep scanning imagery according to claim 1, it is characterised in that：The two-chamber
Scale is printed on pipe.
4. the foley's tube for being applied in OCT peep scanning imagery according to claim 1, it is characterised in that：The two-chamber
Gutron is crossed UV viscose glues and is connected with the handle, and other each parts are connected using welding procedure.
5. the foley's tube for being applied in OCT peep scanning imagery according to claim 1, it is characterised in that：The handle
Material is Merlon, and the double lumen tube and soft head material are block polyetheramides, and the balloon material is for nylon and its is modified
Polymer, said inner tube material are nylon and its polymer-modified.
6. scanning imaging system is peeped in a kind of OCT, it is characterised in that：Scanning imaging system is peeped in the OCT includes sweeping laser
Module, intervention module, detector module, data acquisition module, data processing module, image display, actuator, OCT
Being applied in OCT described in miniature probe, inflation/deflation equipment and any one of claim 1-5 peeps the foley's tube of scanning imagery.
7. scanning imaging system is peeped in OCT according to claim 6, it is characterised in that the actuator drives OCT micro-
Probe carries out rotation sweep, can produce 3D rendering.
8. scanning imaging system is peeped in OCT according to claim 6, it is characterised in that the inflation/deflation equipment is automatic
Inflation/deflation equipment, the automatic inflatable/air equipment include：Control and display module, air pump, inflation/deflation electromagnetic valve, pressure sensing
Device, mechanical pressure switches.
9. scanning imaging system is peeped in OCT according to claim 6, it is characterised in that：Peep in scanning imaging system in OCT
The method for processing OCT signals includes：A. data acquisition；B. data transfer；C. data processing；D. it is transferred to image and shows storehouse；
While transmission data, being transmitted the OCT initial datas into device memory by the general image processor last time is carried out simultaneously
Row is processed, and the data handled well are positioned in the internal memory that image shows storehouse.
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| PCT/CN2016/081352 WO2016180290A1 (en) | 2015-05-08 | 2016-05-06 | Catheter applied in oct endoscopic image scan, application method and oct imaging system thereof |
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| CN104825118B (en) * | 2015-05-08 | 2017-04-26 | 南京微创医学科技股份有限公司 | Balloon catheter applied to OCT (optical coherence tomography) endoscopic scanning imaging, use method and OCT imaging system |
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| CN204671101U (en) * | 2015-05-08 | 2015-09-30 | 南京微创医学科技有限公司 | Be applied in OCT the foley's tube and OCT imaging system of peeping scanning imagery |
-
2015
- 2015-05-08 CN CN201510234452.0A patent/CN104825118B/en active Active
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2016
- 2016-05-06 WO PCT/CN2016/081352 patent/WO2016180290A1/en active Application Filing
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| CN104825118A (en) | 2015-08-12 |
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