CN205306957U - OCT formation of image probe in machinery rotation type blood vessel - Google Patents
OCT formation of image probe in machinery rotation type blood vessel Download PDFInfo
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- CN205306957U CN205306957U CN201520951774.2U CN201520951774U CN205306957U CN 205306957 U CN205306957 U CN 205306957U CN 201520951774 U CN201520951774 U CN 201520951774U CN 205306957 U CN205306957 U CN 205306957U
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Abstract
The utility model provides a OCT formation of image probe in machinery rotation type blood vessel, relates to in the minor mechanical rotation type blood vessel of size the optics of OCT formation of image and sweeps and look into the probe. The problem of because the pipe is through high narrow pathological change or crooked blood vessel section, the instability of drive external force and the frictional force of pipe inner wall, the rotational speed of the probe that leads to is unstable, the rotatory distortion's of formation of image figure technique is solved, including the probe pipe, the printing opacity shell that cup joints with probe pipe tip, the printing opacity shell in still be equipped with the electromagnetism motor, the electromagnetism motor including motor stator and motor rotor, the motor stator is fixed with printing opacity shell inner wall, and the motor stator cup joints with the activity of motor rotor, the motor rotor is the cylinder type magnet that a top was equipped with the reflection of light inclined plane that corresponds with the green lens. It is built -in with the electromagnetism motor, can enough accomplish the accurate control to the motor, can avoid traditional outboard motor to connect seal wire drive probe again and rotate the drawback of bringing, have advantages such as small, that image resolution is high, formation of image stability is good.
Description
Technical field
The utility model relates to Ink vessel transfusing imaging intervention diagnosis and therapeutic system technical field, in particular to the optics scanning probe of the small mechanical rotation formula Ink vessel transfusing OCT image of a kind of size.
Background technology
Optical coherence tomography (Opticalcoherencetomography, OCT) it is the one of optical fault scanning technique, which utilizes the interference principle of light, usually near infrared light is adopted to take pictures, optical scattering medium such as biological tissue etc. can be scanned, obtain the high-resolution optical section image of three dimensional micron level. The time lag in the different reflecting layer of sample is measured by OCT technology by time of flight method, its core is the inferior low coherence interferometer of Michael, it utilizes the interference between the signal pulse sequence of reference light and tissue, detect different depths layer tissue structure, then realize scanning in transverse section by probe, and by the signal that obtains through computer disposal, thus obtain the faultage image of sample. Commercial optical coherence tomography system has multiple application, especially can obtain the detail pictures of retina in ophthalmology. Recently, this kind of technology also for the research of Cardiology, such as Ink vessel transfusing OCT, it is possible to coronary artery disease is diagnosed. Current Ink vessel transfusing OCT conduit is the same with single array element IVUS intravascular ultrasound catheter, it is also desirable to mechanical rotation. Usually, the rotation of probe is driven through leading silk connection by external motor. Mechanical rotation probe utilizes external motor and drive shaft to rotate the plane mirror being installed on catheter tip, and speed of rotation is generally 1800 revs/min, it is possible to the velocity imaging of every second 100 frames. Conduit used at present all adopts single track form, sends into the joint section needing imaging through the guiding wire of 0.014 inch. Because it is bigger to lead a hardness, the single track part of catheter proximal end is shorter, conduit is also more soft, therefore relative with the ability of serious stenotic lesion poor by distortion, also can affect, because of the decline of moment of torsion transmission and anchorage force, the manipulation leading silk even if scraping, now can produce the distortion of image because of the uneven rotation of conduit.
Summary of the invention
In sum, the purpose of this utility model is to solve due to conduit by high degree stenosis pathology or curved blood vessel section, drive the unstable of external force and the frictional force of pipe inner wall, the rotary speed unstabilization of the probe caused is fixed, the technical problem of imaging figure rotation twist distortion, and a kind of mechanical rotation formula Ink vessel transfusing OCT image probe is proposed.
For solving the technical problem that the utility model proposes, the technical scheme adopted is: a kind of mechanical rotation formula Ink vessel transfusing OCT image probe, include probe catheter, with the light transmitting shell of probe catheter end socket, the optical fiber being placed in light transmitting shell through probe catheter, and it is located at Green's lens corresponding with optical fiber in light transmitting shell; It is characterized in that: in described light transmitting shell, be also provided with electromagnetic motor; Described electromagnetic motor includes motor stator and motor rotor; Motor stator and light transmitting shell inwall are fixed, motor stator and motor rotor activity socket; Motor rotor is the cylindrical magnets that a top is provided with the reflective inclined-plane corresponding with Green's lens.
Described motor stator includes the two-phase winding coil that one group of angle is 90 degree.
The reflective inclined-plane on described motor rotor top is the plane reflecting medium film being plated in cylindrical magnets.
The reflective inclined-plane on described motor rotor top and the axial angle of motor rotor are 45 degree.
Described probe catheter diameter is at 1.5 ~ 2mm.
Between described probe catheter and Green's lens, polyfluortetraethylene pipe by being placed on optical fiber socket-connects fixing.
Described optical fiber is single-mode fiber.
The beneficial effects of the utility model are: sample light is from single-mode fiber injection and through Green's lens focus, finally by the reflective slant reflection in motor rotor top, impinge perpendicularly on vessel wall, make incident light realize 360 degree of rotation sweeps to vessel wall under the driving of electromagnetic motor. A closed loop control system can be built into, introduce the lower end of miniature tachogenerator implantable miniature rotor, measure turned position and the rotating speed of rotor in real time, in conjunction with closed loop control system, it is achieved to the accurate control of rotor speed, and realize synchronous with imaging system. The utility model is built-in by electromagnetic motor, can either complete the accurate control to motor, tradition outboard motor can be avoided again to connect the drawback led silk and drive probe rotation to bring, have the advantages such as volume is little, image resolution rate height, Iimaging Stability are good.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model;
Fig. 2 is the three-dimensional structure for amplifying schematic diagram of electromagnetic motor of the present utility model;
Fig. 3 is electromagnetic motor cross section structure for amplifying schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and the utility model preferred specific embodiment, the structure of invention is further described.
Shown in Fig. 3, the utility model mechanical rotation formula Ink vessel transfusing OCT image probe includes probe catheter 1, with the light transmitting shell 2 of probe catheter 1 end socket, the single-mode fiber 3 being inserted in light transmitting shell 2 through probe catheter 1, it is located at Green's lens 4 corresponding with single-mode fiber in light transmitting shell 2, and the electromagnetic motor 5 being located in light transmitting shell 2.
Between probe catheter 1 and Green's lens 4, polyfluortetraethylene pipe 6 by being placed on single-mode fiber 3 socket-connects fixing. Described electromagnetic motor 5 includes motor stator 51 and motor rotor 52; Motor stator 51 and light transmitting shell 2 inwall are fixed, motor stator 51 and motor rotor 52 activity socket;Motor rotor 52 is the cylindrical magnets that a top is provided with the reflective inclined-plane 53 corresponding with Green's lens 4, and the reflective inclined-plane 53 on motor rotor 52 top can be the plane reflecting medium film being plated in cylindrical magnets; The reflective inclined-plane 53 on motor rotor 52 top is preferably 45 degree with the axial angle of motor rotor; Motor stator 51 includes the two-phase winding coil 511,512 that one group of angle is 90 degree. The two-phase sinusoidal ac signal being 90 ° when a phase differential is carried on two-phase winding coil 511,512, two coils 511,512 produce rotatingfield under the effect of sinusoidal ac signal, motor rotor 52 under the effect of rotatingfield along with exchange signal frequency carry out synchronous axial system, sample light penetrates from single-mode fiber 3 and focuses on through Green's lens 4, finally reflected by reflective inclined-plane 53, motor rotor 52 top, impinge perpendicularly on vessel wall, carrying out in 360 degree of rotary courses at motor rotor 52, incident light realizes 360 degree of rotation sweeps to vessel wall.
The utility model drives built-in plane mirror to rotate without the need to external motor through leading silk connection, can either complete the accurate control to motor, tradition outboard motor connection can be avoided again to lead silk and drive the drawback popped one's head in and rotate and bring. Probe catheter diameter is at 1.5 ~ 2mm, the electromagnetic motor 5 of the utility model OCT image probe distal end is thin neck micromotor, motor stator 51 by superfine wire by necessarily arranging around one-tenth, if technology and processing condition allow, volume will be accomplished less, it may be achieved is swept by vessel wall side-looking 360 degree of OCT and looks into imaging; Introduce the leading section that motor rotor 52 implanted by miniature tachogenerator, measure turned position and the rotating speed of motor rotor 52 in real time, in conjunction with closed loop control system, it is achieved to the accurate control of rotor speed, and realize synchronous with imaging system.
Claims (7)
1. a mechanical rotation formula Ink vessel transfusing OCT image probe, includes probe catheter, with the light transmitting shell of probe catheter end socket, the optical fiber being placed in light transmitting shell through probe catheter, and is located at Green's lens corresponding with optical fiber in light transmitting shell; It is characterized in that: in described light transmitting shell, be also provided with electromagnetic motor; Described electromagnetic motor includes motor stator and motor rotor; Motor stator and light transmitting shell inwall are fixed, motor stator and motor rotor activity socket; Motor rotor is the cylindrical magnets that a top is provided with the reflective inclined-plane corresponding with Green's lens.
2. a kind of mechanical rotation formula Ink vessel transfusing OCT image probe according to claim 1, it is characterised in that: described motor stator includes the two-phase winding coil that one group of angle is 90 degree.
3. a kind of mechanical rotation formula Ink vessel transfusing OCT image probe according to claim 1, it is characterised in that: the reflective inclined-plane on described motor rotor top is the plane reflecting medium film being plated in cylindrical magnets.
4. a kind of mechanical rotation formula Ink vessel transfusing OCT image probe according to claim 1 or 3, it is characterised in that: the reflective inclined-plane on described motor rotor top and motor rotor axis angle is 45 degree.
5. a kind of mechanical rotation formula Ink vessel transfusing OCT image probe according to claim 1, it is characterised in that: described probe catheter diameter is at 1.5 ~ 2mm.
6. a kind of mechanical rotation formula Ink vessel transfusing OCT image probe according to claim 1, it is characterised in that: between described probe catheter and Green's lens, polyfluortetraethylene pipe by being placed on optical fiber socket-connects fixing.
7. a kind of mechanical rotation formula Ink vessel transfusing OCT image probe according to claim 1, it is characterised in that: described optical fiber is single-mode fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951774.2U CN205306957U (en) | 2015-11-25 | 2015-11-25 | OCT formation of image probe in machinery rotation type blood vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951774.2U CN205306957U (en) | 2015-11-25 | 2015-11-25 | OCT formation of image probe in machinery rotation type blood vessel |
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| CN205306957U true CN205306957U (en) | 2016-06-15 |
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| CN201520951774.2U Active CN205306957U (en) | 2015-11-25 | 2015-11-25 | OCT formation of image probe in machinery rotation type blood vessel |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105286800A (en) * | 2015-11-25 | 2016-02-03 | 深圳大学 | Mechanically rotating intravascular OCT (optical coherence tomography) imaging probe |
| CN106419853A (en) * | 2016-11-30 | 2017-02-22 | 苏州阿格斯医疗技术有限公司 | Method and device for automatically withdrawing closed-loop OCT catheter |
| CN107713986A (en) * | 2017-09-11 | 2018-02-23 | 天津大学 | A kind of angioscopy ultrasound OCT probe system |
| CN108853760A (en) * | 2018-06-11 | 2018-11-23 | 苏州佳世达电通有限公司 | Ultrasound scanner head |
| WO2019080158A1 (en) * | 2017-10-26 | 2019-05-02 | 广州永士达医疗科技有限责任公司 | Uterine oct catheter and uterine oct device having withdrawal function |
| WO2022048062A1 (en) * | 2020-09-01 | 2022-03-10 | 广州永士达医疗科技有限责任公司 | Oct optical probe capable of simultaneously implementing forward and 360° lateral scanning, and implementation method therefor |
-
2015
- 2015-11-25 CN CN201520951774.2U patent/CN205306957U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105286800A (en) * | 2015-11-25 | 2016-02-03 | 深圳大学 | Mechanically rotating intravascular OCT (optical coherence tomography) imaging probe |
| CN106419853A (en) * | 2016-11-30 | 2017-02-22 | 苏州阿格斯医疗技术有限公司 | Method and device for automatically withdrawing closed-loop OCT catheter |
| CN106419853B (en) * | 2016-11-30 | 2018-03-30 | 苏州阿格斯医疗技术有限公司 | Closed loop OCT conduit automatic returning methods and its device |
| CN107713986A (en) * | 2017-09-11 | 2018-02-23 | 天津大学 | A kind of angioscopy ultrasound OCT probe system |
| WO2019080158A1 (en) * | 2017-10-26 | 2019-05-02 | 广州永士达医疗科技有限责任公司 | Uterine oct catheter and uterine oct device having withdrawal function |
| US11766211B2 (en) | 2017-10-26 | 2023-09-26 | Guangzhou Winstar Medical Technology Company Limited | Uterus OCT catheter and uterus OCT equipment with pull-back function |
| CN108853760A (en) * | 2018-06-11 | 2018-11-23 | 苏州佳世达电通有限公司 | Ultrasound scanner head |
| WO2022048062A1 (en) * | 2020-09-01 | 2022-03-10 | 广州永士达医疗科技有限责任公司 | Oct optical probe capable of simultaneously implementing forward and 360° lateral scanning, and implementation method therefor |
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| C14 | Grant of patent or utility model | ||
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