CN212630752U - OCT optical probe capable of simultaneously realizing forward and lateral 360-degree scanning - Google Patents
OCT optical probe capable of simultaneously realizing forward and lateral 360-degree scanning Download PDFInfo
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- CN212630752U CN212630752U CN202021885332.XU CN202021885332U CN212630752U CN 212630752 U CN212630752 U CN 212630752U CN 202021885332 U CN202021885332 U CN 202021885332U CN 212630752 U CN212630752 U CN 212630752U
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Abstract
The utility model provides a can realize simultaneously preceding OCT optical probe with 360 scans of side direction, the one end and the lens subassembly of optic fibre are connected, the one end and the tubular metal resonator of metal seal wire are connected, the outside of optic fibre is located to metal seal wire cover, the lens subassembly is fixed in the tubular metal resonator, the outside of metal seal wire and tubular metal resonator is located to outer protection tube cover, the other end of optic fibre, the other end of metal seal wire, the one end and the optic fibre adapting unit of outer protection tube are connected, optic fibre adapting unit is connected with the OCT host computer, the other end of outer protection tube is sealed, reflection element is located the outside of lens subassembly, and fix in outer protection. The utility model discloses a lens subassembly is assembled, only increases a reflection element and can realize that side 360 and preceding scanning, and application scope is wide, can be used to the scanning diagnosis of tissues such as oral cavity, otolaryngology, also can be used to peep the formation of image detection in pipe chamber way, peritoneoscope etc. and simple, the size is little, and is with low costs, easily production and processing.
Description
Technical Field
The utility model relates to an optical probe especially relates to a can realize simultaneously to the OCT optical probe of 360 scans of side direction and the preceding direction.
Background
The Optical Coherence Tomography (OCT) is a high-resolution, non-invasive imaging technique, has been developed since its introduction in 1991, and has been developed by b.e. bouma and g.j.tearney of the medical college of harvard university, which have designed a standard OCT catheter-type endoscope, which broadens the imaging range of OCT and enables high-resolution imaging of tubular biological tissues such as cardiovascular, gastrointestinal, urinary and respiratory tracts.
The optical imaging probe is a key component of the endoscopic imaging catheter. The catheter type endoscopic imaging probe technology used in the current market mainly comprises the following two types, the first type is that a host drives a probe to radially rotate 360 degrees, 360-degree scanning of the side surface can be realized, multi-section pipeline type three-dimensional imaging is realized by controlling the forward and backward movement of a catheter, but forward scanning cannot be realized; another method is to combine the scanning micro-mirror of the micro-electromechanical system technology with the optical coherence tomography technology, and use the MEMS micro-mirror to achieve scanning in different directions, for example, the patent with application number CN201210397955.6 uses two lens assemblies to achieve simultaneous scanning in the forward and lateral directions; the patent application No. CN201410067366.0 utilizes a lens assembly and two MEMS micromirrors to achieve the forward and lateral scanning. This approach has certain advantages, but it also has certain limitations, using a dual-lens assembly and MEMS micro-mirrors, with a corresponding increase in probe size and cost; in addition, the MEMS micro-mirror can only scan partial areas of the side surface, and cannot scan the whole cross section of the side surface by 360 degrees.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's not enough, the utility model aims to provide a can realize simultaneously to the OCT optical probe with 360 scans of side direction, adopt the lens subassembly to assemble, only increase a reflection element and can realize the side and preceding scanning, product application scope is wide, can be used to the scanning diagnosis of tissues such as oral cavity, otolaryngology, also can be used to endoscopic imaging detection such as pipe cavity way, peritoneoscope, the structure is formed simply, and the size is little, and is with low costs, easily production and processing.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an OCT optical probe capable of simultaneously realizing forward and lateral 360-degree scanning comprises an optical fiber connecting part, an optical fiber, a lens component, a metal tube, a metal guide wire, an outer protection tube and a reflecting element, wherein one end of the optical fiber is connected with the lens component, one end of the metal guide wire is connected with the metal tube, the metal guide wire is sleeved outside the optical fiber, the lens component is fixed in the metal tube, the outer protection tube is sleeved outside the metal guide wire and the metal tube, the other end of the optical fiber, the other end of the metal guide wire and one end of the outer protection tube are connected with the optical fiber connecting part, the optical fiber connecting part is connected with an OCT host, the other end of the outer protection tube is sealed, and the reflecting element is located outside the lens component and fixed in the outer protection tube.
Further, the light emitting direction of the lens assembly is side surface radial light emitting.
Further, the reflective element is a conical mirror.
Further, the radial direction of the conical reflector is a plane or a curved surface.
Furthermore, an included angle between the conical reflector and the axial direction of the optical probe is 0-90 degrees.
Further, the outer protection tube is a protection tube made of a transparent material.
Further, the other end of the outer protection tube is a plane or a curved surface.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model provides a can realize simultaneously to OCT optical probe to 360 scans of preceding and side direction, including optic fibre adapting unit, optic fibre, the lens subassembly, the tubular metal resonator, the metal seal wire, the outer protection tube, reflection element, the one end and the lens subassembly of optic fibre are connected, the one end and the tubular metal resonator of metal seal wire are connected, the outside of optic fibre is located to metal seal wire cover, the lens subassembly is fixed in the tubular metal resonator, the outside of metal seal wire and tubular metal resonator is located to the outer protection tube cover, the other end of optic fibre, the other end of metal seal wire, the one end and the optic fibre adapting unit of outer protection tube are connected, optic fibre adapting unit is connected with the OCT host computer, the other end of outer protection tube is sealed, reflection. The utility model discloses a lens subassembly is assembled, only increases a reflection element and can realize that side 360 and preceding scanning, and product application scope is wide, can be used to the scanning diagnosis of tissues such as oral cavity, otolaryngology, also can be used to peep the formation of image detection in pipe chamber way, peritoneoscope etc. and the structure is formed simply, and the size is little, and is with low costs, easily production and processing.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic diagram of an OCT optical probe according to the present invention, which can simultaneously realize forward and lateral 360 ° scanning;
fig. 2 is a schematic view of a light-emitting end of an OCT optical probe according to the present invention, which can simultaneously implement forward and lateral 360 ° scanning;
fig. 3 is a schematic diagram of a light-emitting end of an OCT optical probe according to the present invention, which can simultaneously implement forward and lateral 360 ° scanning;
fig. 4 is a schematic diagram of a light-emitting end of an OCT optical probe according to the present invention, which can simultaneously implement forward and lateral 360 ° scanning;
fig. 5 is a flowchart of an OCT optical probe implementation method of the present invention, which can simultaneously implement forward and lateral 360 ° scanning.
In the figure: 1. an optical fiber connecting member; 2. an optical fiber; 3. a metal guide wire; 4. an outer protection tube; 5. a reflective element; 6. a metal tube.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
The utility model provides a can realize forward and 360 OCT optical probe of scanning of side direction simultaneously, as shown in figure 1, including optic fibre adapting unit 1, optic fibre 2, the lens subassembly, tubular metal resonator 6, metal seal wire 3, outer protection tube 4, reflection element 5, the one end and the lens subassembly of optic fibre 2 are connected, the one end and the tubular metal resonator 6 of metal seal wire 3 are connected, the outside of optic fibre 2 is located to metal seal wire 3 cover, the lens subassembly is fixed in tubular metal resonator 6, the outside of metal seal wire 3 and tubular metal resonator 6 is located to outer protection tube 4 cover, the other end of optic fibre 2, the other end of metal seal wire 3, the one end and the optic fibre adapting unit 1 of outer protection tube 4 are connected, optic fibre adapting unit 1 is connected with the OCT host computer, the other end of outer protection tube 4 is sealed, reflection element 5 is. Preferably, the reflecting element 5 is a conical mirror, preferably, the conical mirror has a flat or curved surface in the radial direction. Preferably, the light emitting direction of the lens assembly is side radial light emitting. Preferably, the outer protection tube 4 is a protection tube made of a transparent material, the laser can transmit with high efficiency, and is kept still together with the conical reflector during the test, and the other end of the outer protection tube 4 is a plane or a curved surface.
The OCT host machine drives the metal guide wire 3 in the optical fiber scanning probe to rotate and simultaneously perform stretching and retracting motions. The light is output from the tail end of the optical fiber scanning probe through the lens component and is reflected to the front end through the conical reflector, and the light strikes different positions of the conical reflector in the forward operation process of the lens component and is reflected to different positions of the front end, so that the front end is scanned. The scanning range of the front end can be realized by the design of the conical reflecting mirror. After the front end scan is completed, the light passes through the outer protective tube 4 through the lens assembly, scans the side surface, and then returns to the initial position to wait for a second scan.
As shown in fig. 3, the output light of the lens assembly is in the horizontal direction, and the included angle between the conical reflector and the axial direction of the optical probe is 0-90 °. In this embodiment, in order to avoid the top end of the lens assembly from shielding the light reflected by the conical reflector, the included angle between the conical reflector and the axial direction of the optical probe is designed to be 43.17 ° according to the distance from the light emitting position to the top end of the lens assembly and the distance from the light emitting point to the top end of the outer protection tube 4. When scanning starts, light output by the lens component is reflected by the conical reflecting mirror and then enters the front end of the optical fiber scanning probe, and along with the downward movement of the lens component, the light entering the front end of the optical fiber scanning probe is scanned outwards in a spiral shape, so that the scanning of the front end is realized. After the front end scan is completed, the light passes through the outer protective tube 4 through the lens assembly, scans the side surface, and then returns to the initial position to wait for a second scan.
As shown in fig. 4, the output light of the lens assembly is in the horizontal direction, and in order to enlarge the scanning area of the front end of the optical fiber scanning probe, the side surface of the conical reflector is designed to be a convex surface, so that the scanning area of the front end is larger than the cross section of the optical fiber scanning probe.
It should be understood that, in addition to the above embodiments, other designs of the conical mirror may be adopted, and the scanning of the front end may be realized by changing the light emitting direction of the lens assembly, etc., all of which are within the protection scope of the present invention.
On the basis of ordinary side direction scanning fiber scanning probe, through increasing the toper speculum, once reflect the light of output, enlarge the scanning range to the probe front end, realize that a probe realizes side direction and preceding scanning simultaneously, through the rational design to the toper mirror, can realize the scanning to different areas in the preceding direction.
An implementation method of an OCT optical probe capable of simultaneously implementing forward and lateral 360 ° scanning, as shown in fig. 2 and 5, includes the following steps:
step 1: the initial position of the light emitting point of the lens component is O point, the lens component outputs light at 0 point, the metal guide wire 3 drives the lens component to rotate in 360 degrees in the radial direction and move forwards along the axial direction, the light is reflected by the conical reflector 5 and then enters the front end of the optical probe, and the light entering the front end of the optical probe scans outwards in a spiral shape along with the downward movement of the lens component;
step 2: after the lens assembly reaches a point A at a preset position, light passes through the lens assembly and passes through the outer protection tube, 4 imaging is carried out on the side surface multi-section, and pipeline type three-dimensional imaging is realized through three-dimensional recombination;
and step 3: the lens assembly returns to point O and waits for the next test.
The utility model provides a can realize simultaneously to OCT optical probe to 360 scans of preceding and side direction, including optic fibre adapting unit, optic fibre, the lens subassembly, the tubular metal resonator, the metal seal wire, the outer protection tube, reflection element, the one end and the lens subassembly of optic fibre are connected, the one end and the tubular metal resonator of metal seal wire are connected, the outside of optic fibre is located to metal seal wire cover, the lens subassembly is fixed in the tubular metal resonator, the outside of metal seal wire and tubular metal resonator is located to the outer protection tube cover, the other end of optic fibre, the other end of metal seal wire, the one end and the optic fibre adapting unit of outer protection tube are connected, optic fibre adapting unit is connected with the OCT host computer, the other end of outer protection tube is sealed, reflection. The utility model discloses a lens subassembly is assembled, only increases a reflection element and can realize that side 360 and preceding scanning, and product application scope is wide, can be used to the scanning diagnosis of tissues such as oral cavity, otolaryngology, also can be used to peep the formation of image detection in pipe chamber way, peritoneoscope etc. and the structure is formed simply, and the size is little, and is with low costs, easily production and processing.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the utility model can be smoothly implemented by the ordinary technicians in the industry according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. An OCT optical probe capable of simultaneously realizing forward and lateral 360-degree scanning is characterized in that: the optical fiber protection device comprises an optical fiber connecting part, an optical fiber, a lens component, a metal tube, a metal guide wire, an outer protection tube and a reflecting element, wherein one end of the optical fiber is connected with the lens component, one end of the metal guide wire is connected with the metal tube, the metal guide wire is sleeved outside the optical fiber, the lens component is fixed in the metal tube, the outer protection tube is sleeved outside the metal guide wire and the metal tube, the other end of the optical fiber, the other end of the metal guide wire and one end of the outer protection tube are connected with the optical fiber connecting part, the optical fiber connecting part is connected with an OCT host, the other end of the outer protection tube is sealed, and the reflecting element is located outside the lens component and fixed in the outer protection tube.
2. An OCT optical probe that can simultaneously achieve both forward and lateral 360 ° scans, as claimed in claim 1, wherein: the light emitting direction of the lens component is side surface radial light emitting.
3. An OCT optical probe that can simultaneously achieve both forward and lateral 360 ° scans, as claimed in claim 1, wherein: the reflective element is a conical mirror.
4. An OCT optical probe that can simultaneously achieve both forward and lateral 360 ° scans, as claimed in claim 3, wherein: the radial direction of the conical reflector is a plane or a curved surface.
5. An OCT optical probe that can simultaneously achieve both forward and lateral 360 ° scans, as claimed in claim 3, wherein: the included angle between the conical reflector and the axial direction of the optical probe is 0-90 degrees.
6. An OCT optical probe that can simultaneously achieve both forward and lateral 360 ° scans, as claimed in claim 1, wherein: the outer protection tube is made of transparent materials.
7. An OCT optical probe that can simultaneously achieve both forward and lateral 360 ° scans, as claimed in claim 1, wherein: the other end of the outer protection tube is a plane or a curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021885332.XU CN212630752U (en) | 2020-09-01 | 2020-09-01 | OCT optical probe capable of simultaneously realizing forward and lateral 360-degree scanning |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021885332.XU CN212630752U (en) | 2020-09-01 | 2020-09-01 | OCT optical probe capable of simultaneously realizing forward and lateral 360-degree scanning |
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| CN212630752U true CN212630752U (en) | 2021-03-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237850A (en) * | 2021-04-29 | 2021-08-10 | 广州永士达医疗科技有限责任公司 | Optical fiber collimator for OCT (optical coherence tomography), manufacturing method and OCT equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237850A (en) * | 2021-04-29 | 2021-08-10 | 广州永士达医疗科技有限责任公司 | Optical fiber collimator for OCT (optical coherence tomography), manufacturing method and OCT equipment |
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Effective date of registration: 20240428 Address after: 518000, No. 33, Guimiao New Village, Yuegui Community, Yuehai Street, Nanshan District, Shenzhen, Guangdong Province 104 Patentee after: Shenzhen Aositian Medical Technology Co.,Ltd. Country or region after: China Address before: 510663 No. B205, zone B, Guangzhou International Business Incubator, No. 3, Juquan Road, Science City, Guangzhou hi tech Industrial Development Zone, Guangdong Province Patentee before: GUANGZHOU WINSTAR MEDICAL TECHNOLOGY Co.,Ltd. Country or region before: China |