CN109106324B - Endoscope and light transmission method - Google Patents
Endoscope and light transmission method Download PDFInfo
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- CN109106324B CN109106324B CN201810887503.3A CN201810887503A CN109106324B CN 109106324 B CN109106324 B CN 109106324B CN 201810887503 A CN201810887503 A CN 201810887503A CN 109106324 B CN109106324 B CN 109106324B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title abstract description 17
- 238000003780 insertion Methods 0.000 claims abstract description 32
- 230000037431 insertion Effects 0.000 claims abstract description 32
- 230000000903 blocking effect Effects 0.000 claims description 45
- 239000013307 optical fiber Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 9
- 239000012780 transparent material Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 230000010365 information processing Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 description 26
- 230000000694 effects Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000001678 irradiating effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- A61B1/06—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 with illuminating arrangements
- A61B1/07—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 with illuminating arrangements using light-conductive means, e.g. optical fibres
-
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00011—Operational features of endoscopes characterised by signal transmission
- A61B1/00013—Operational features of endoscopes characterised by signal transmission using optical means
-
- 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
- A61B1/00112—Connection or coupling means
- A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
- A61B1/00126—Connectors, fasteners and adapters, e.g. on the endoscope handle optical, e.g. for light supply cables
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Abstract
The embodiment of the invention discloses an endoscope and a light transmission method, wherein the endoscope comprises the following components: an endoscope body, a light source device for emitting a light source to the endoscope body; the endoscope body is connected with the light source device through a light guide beam line; wherein the light source device is provided with an insertion connector; the end part of the light guide beam wire is provided with a light guide beam inserter, and the light guide beam inserter is inserted with the insertion connector; the light source device is internally and fixedly provided with a light source emitter and a light restraint device, and the light restraint device is arranged between the light source emitter and the light guide beam inserter; the light beam emitted by the light source emitter is restrained in the light guide beam inserter through the light guide beam restraint device, and propagates to the endoscope body through the light guide beam inserter, and irradiates the observation body to realize observation.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an endoscope and an optical transmission method.
Background
Endoscopes are widely used for observation and treatment in vivo (in a body cavity), etc., or for examination and repair in industrial mechanical equipment.
At present, an endoscope comprises an endoscope body, and an endoscope image processing device and a light source device which are respectively connected with the endoscope body, wherein the endoscope body transmits a light source generated by the light source device to a probe of the endoscope body and the inside of a human body through a light guide beam line so as to realize observation. One end of the light guide beam line is inserted into the light source device, which is called a light guide beam insertion part, and the other end is connected with the endoscope body.
However, since the light source device emits a light source with a high brightness, the irradiation on the light guide beam insertion portion may cause a temperature rise thereof, affecting the life of the optical fiber therein, and even burning out the optical fiber, thereby affecting the performance of the endoscope.
Disclosure of Invention
In order to solve the above technical problems, an embodiment of the present invention is expected to provide an endoscope and an optical transmission method, which can define a light source area emitted by a light source device, avoid irradiation of a light guide beam insertion portion, and enable optical transmission of the endoscope to be stable, thereby ensuring performance stability of the endoscope.
The technical scheme of the invention is realized as follows:
an embodiment of the present invention provides an endoscope including: an endoscope body, a light source device for emitting a light source to the endoscope body; the endoscope body is connected with the light source device through a light guide beam line; wherein,
the light source device is provided with an insertion connector;
the end part of the light guide beam line is provided with a light guide beam inserter, and the light guide beam inserter is inserted with the insertion connector;
the light source device is internally and fixedly provided with a light source emitter and a light restraint device, and the light restraint device is arranged between the light source emitter and the light guide beam inserter;
the light beam emitted by the light source emitter is restrained in the light guide beam inserter through the light restraint device, and propagates to the endoscope body through the light guide beam inserter, and irradiates the observation body to realize observation.
The embodiment of the invention provides an optical transmission method, which is applied to an endoscope, and the endoscope comprises: an endoscope body and a light source device for emitting a light source to the endoscope body; the light source device is internally and fixedly provided with a light source emitter and a light restraint device, the endoscope body is connected with the light source device through a light guide beam line, and the method comprises the following steps:
emitting a first light beam by the light source emitter; wherein, the end part of the light guide beam line is provided with a light guide beam inserter; the light restrictor is disposed between the light source emitter and the light guide beam inserter;
confining the first light beam within the light guide beam inserter by the light confining means;
the first light beam is transmitted to the endoscope body through the light guide beam inserter and irradiates the endoscope body to observe.
The embodiment of the invention provides an endoscope and a light transmission method, wherein the endoscope comprises the following components: an endoscope body, a light source device for emitting a light source to the endoscope body; the endoscope body is connected with the light source device through a light guide beam line; wherein the light source device is provided with an insertion connector; the end part of the light guide beam wire is provided with a light guide beam inserter, and the light guide beam inserter is inserted with the insertion connector; the light source device is internally and fixedly provided with a light source emitter and a light restraint device, and the light restraint device is arranged between the light source emitter and the light guide beam inserter; the light beam emitted by the light source emitter is restrained in the light guide beam inserter through the light guide beam restraint device, and propagates to the endoscope body through the light guide beam inserter, and irradiates the observation body to realize observation. In the embodiment of the invention, the restraint device is arranged in the light source device in the endoscope and is arranged between the light source emitter and the light guide beam inserter, so that under the restraint of the restraint device, the light beam emitted from the light source emitter of the light source device can restrain the light beam transmitted inside the light guide beam inserter, the irradiation of the light source directly to the light guide beam inserter is reduced, the damage of the high-intensity light source to the optical fiber in the light guide beam inserter is avoided, the light transmission of the endoscope is kept stable, and the performance stability of the endoscope is ensured.
Drawings
FIG. 1 is a schematic view of an exemplary endoscope according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second exemplary endoscope according to an embodiment of the present invention;
FIG. 3 is a partial enlarged view of an exemplary light restrictor inside a light source device as a light barrier according to an embodiment of the present invention;
fig. 4 is a schematic plan view of an exemplary light blocking sheet according to an embodiment of the present invention;
FIG. 5 is a schematic plan view of an exemplary light restrictor as a light barrier according to embodiments of the present invention;
FIG. 6 provides a partial enlarged view of an exemplary light source device internal light restrictor as a lens, in accordance with an embodiment of the present invention;
FIG. 7 is a schematic plan view of an exemplary optical confinement lens according to an embodiment of the invention;
fig. 8 is a schematic layout view of a fan disposed inside an exemplary light source device according to an embodiment of the present invention;
FIG. 9 is a schematic plan view of an exemplary fan heat sink provided by an embodiment of the present invention;
fig. 10 is a flowchart of an optical transmission method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Therefore, the invention solves the technical problem by applying the technical means, and the realization process for achieving the technical effect can be fully understood and implemented accordingly. It should be noted that, as long as no conflict is formed, each embodiment of the present invention and each feature of each embodiment may be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.
In the following description, suffixes such as "part", "means" or "body" for representing elements are used only for facilitating the description of the present invention, and are not of specific significance per se. Thus, "part," "device," or "body" may be used in combination.
An embodiment of the present invention provides an endoscope, and, by way of example, fig. 1 is a schematic structural diagram of an endoscope provided in the embodiment of the present invention, as shown in fig. 1, the endoscope 1 includes: an endoscope body 11, a light source device 12 for emitting a light source to the endoscope body 11; the endoscope body 11 is connected to the light source device 12 via a light guide beam line 13.
Wherein the light source device 12 is provided with a plug-in connector 121. The end of the light guide wire 13 is provided with a light guide inserter 14, and the light guide inserter 14 is inserted into the insertion connector 121. The light source device 12 is fixedly provided with a light source emitter 123 and a light restraint 124, and the light restraint 124 is arranged between the light source emitter 123 and the light guide beam inserter 14. The light beam emitted from the light source emitter 123 is confined in the light guide beam inserter 14 by the light confinement 124, and propagates to the endoscope body 11 via the light guide beam inserter 14, and irradiates the observation body to achieve observation.
Specifically, as shown in fig. 1, the first outer side 120 of the light source device 12 is provided with an insertion connector 121. The end of the light guide wire 13 is provided with a light guide inserter 14, the light guide inserter 14 is inserted into the insertion connector 121, and the light guide inserter 14 passes through the first outer side 120 and protrudes from the first inner side 122 of the light source device. A light source emitter 123 and a light restraint 124 are fixedly arranged in the light source device 12, and the light source emitter 123 is opposite to the first inner side surface 122; the light restrictor 124 is disposed between the light source emitter 123 and the light guide beam inserter 14.
In the embodiment of the present invention, the light guide wire 13 may be a light guide wire to ensure practicability, but the embodiment of the present invention does not limit the material of the light guide wire 13, and may be used for optical transmission.
In the embodiment of the present invention, a flexible endoscope is taken as an example, and as shown in fig. 2, the endoscope body 11 may include: a cavity insertion portion 110 and an operation portion 111.
Here, an endoscope for observation is described as an example, but the embodiment of the present invention is not limited to the endoscope for observation. Here, the cavity insertion portion 110 is used for insertion into a body cavity of a patient, and the cavity insertion portion 110 may be a flexible insertion portion or a straight insertion portion as an observation probe, and the embodiment of the present invention is not limited thereto. The operation portion 111 is disposed at a base end portion of the cavity insertion portion 110.
Based on the above-described structure of the endoscope body 11, as shown in fig. 2, in the embodiment of the present invention, the first end 130 of the light guide wire 13 is connected to the light source device 12, and the second end of the light guide wire 13 is disposed on the operation portion 111. Wherein the end of the first end 130 of the light guide wire 13 is provided with a light guide inserter 14.
In some embodiments of the present invention, the light guide beam line 13 is hollow inside and is laid with an optical fiber; one end of the optical fiber is disposed inside the light guide inserter 14; when the light source emitter 123 emits a light beam, the light beam is constrained to the optical fiber of the light guide inserter 14 through the light constraining device 124, propagates to the endoscope body 11 via the optical fiber, and irradiates the observation body to achieve observation.
The light guide beam inserter 14 may be nested at the end of the first end 130 of the light guide beam wire 13, where the light guide beam wire 13 is hollow, and a light guide fiber is built in, and the light guide fiber is used for conducting light of the light source or the light beam.
In the embodiment of the present invention, the first outer side 120 of the light source device 12 is provided with an insertion connector 121, and the light guide beam inserter 14 is inserted into the insertion connector 121, and the light guide beam inserter 14 passes through the first outer side 120 and protrudes from the first inner side 122 of the light source device 12. The light guide beam inserter 14 and the insertion connector 121 are matched insertion and extraction devices, and the specific shape and insertion and extraction mode are not limited in the embodiment of the present invention.
Illustratively, the beam guide inserter 14 may be straight cylindrical with a plug of light guide fiber nested inside beyond the beam guide wire 13; the insertion connector 121 may be a mating straight cylindrical round hole socket.
In the embodiment of the present invention, the light source device 12 is configured to send a light source or a light beam, specifically, the light source emitter 123 and the light restrictor 124 are fixedly disposed on the bottom plate of the light source device 12, where the light source emitter 123 is disposed opposite to the first inner side 122, and is not in contact, and since the light guide beam inserter 14 protrudes from the first inner side 122, the light source emitter 123 may direct the light guide beam inserter 14. In the embodiment of the present invention, the optical confinement 124 is disposed between the light source emitter 123 and the light guide beam inserter 14, and the optical confinement 124, the emission port of the light source emitter 123, and the light guide beam inserter 14 are positioned on the same line and are not in contact with each other. The light restrictor 124 functions to restrict the light source or beam passing through the light restrictor 124 to a beam that may be directed into the lead inserter 14.
The light source emitter 123 and the light restrictor 124 may be fixed to the bottom plate of the light source device 12 by screws, or may be fixed to the bottom plate of the light source device 12 by welding, and the detailed fixing manner is not limited in the embodiment of the present invention.
Referring to fig. 1 and 2, the light beam emitted from the light source emitter 123 is confined in the light guide beam inserter 14 by the light-confining device 124, propagates to the cavity insertion portion 110 of the light guide endoscope body 11 in the light guide beam line 13 via the light guide optical fiber of the light guide beam inserter 14, irradiates the observation body (i.e., cavity) to effect observation, and also moves a specific position of the cavity insertion portion 110 in the observation body through the operation portion 111 so as to observe different portions.
It can be understood that, since the restraint device is arranged in the light source device in the endoscope and is arranged between the light source emitter and the light guide beam inserter, under the restraint of the restraint device, the light beam emitted from the light source emitter of the light source device can restrain the light beam transmitted inside the light guide beam inserter, so that the irradiation of the light source directly to the light guide beam inserter is reduced, the damage of the high-intensity light source to the optical fiber in the light guide beam inserter is avoided, the light transmission of the endoscope is kept stable, and the performance stability of the endoscope is ensured.
In some embodiments of the present invention, as shown in fig. 2, the endoscope 1 further includes: an endoscopic image processing device 15 for processing the observed result, wherein the endoscope body 11 is connected to the endoscopic image processing device 15 through a first connection line 16.
The light beam emitted by the light source emitter 123 is constrained in the light guide beam inserter 14 by the light constraint device 124, propagates to the endoscope body 11 via the light guide beam inserter 14, irradiates an observation body to realize observation, obtains an observation signal, and transmits the observation signal to the endoscope image processing device 15 through the first connection line 16 for information processing, thereby obtaining an endoscope observation image.
It should be noted that, in the embodiment of the present invention, the first connection line 16 may be connected to an interface provided at one side of the beam guide inserter 14, and the connection to the endoscope body 11 is achieved through the beam guide line 13 connected to the beam guide inserter 14, for example, the first connection line 16 may be connected to the beam guide inserter 14 by using an electrical connection point; the connection between the endoscope body 11 and the endoscopic image processing apparatus 15 may be achieved by a conventional connection method, and the embodiment of the present invention is not limited. The endoscope image processing device 15 is configured to receive an observation signal fed back by irradiation from the endoscope body 11, process and image the observation signal, and obtain an observation image, so as to facilitate analysis and viewing by a doctor or observer.
That is, in the embodiment of the present invention, the endoscope includes the endoscope body 11, the light source device 12, and the endoscope image processing device 15, and the endoscope body 11 is provided with a charge coupled device (CCD, charge Coupled Device) that photographs the inside of the body cavity, an image pickup section such as an image sensor, and a first connector (not shown) provided at an end portion of the second end of the light guide beam line, and the endoscope image processing device 15 performs image processing, imaging, and displaying of the observation signal (for example, image data) output from the endoscope body 11. In the endoscope 1, transmission of an image signal and a control signal (observation signal) is performed between the endoscope image processing apparatus 15 and the endoscope main body 11.
In some embodiments of the present invention, the light guide beam inserter 14 is provided with a light guide hole 140 (labeled in the following figures); the center of the light restrictor 124 is opposite the center of the light guide aperture.
In the embodiment of the present invention, the end surface of the light guide beam inserter 14 protruding from the first inner side surface 122 is provided with a light guide hole 140.
Preferably, the center of the light-restricting unit 124 is opposite to the center of the light guide hole and the center of the emission port of the light source emitter 123, respectively. But the present invention is not limited to the embodiment as long as the center of the optical confinement 124 is opposite to the center of the light guide hole.
In the embodiment of the present invention, the correspondence between the optical confinement device 124 and the light guide hole and the emission port of the light source emitter 123 may not be limited, and the respective centers thereof may be slightly offset, which is mainly enough to implement that the optical confinement device 14 can confine the optical beam in the light guide beam inserter for transmission.
In some embodiments of the present invention, as shown in fig. 3, the optical constrainer 124 may include: a light blocking sheet.
The light blocking sheet is used for blocking the light beam emitted by the light source emitter so that the light beam is restrained to propagate inside the light guide beam inserter.
In the embodiment of the present invention, the optical confinement device 124 may be a light blocking sheet, in which a light transmitting portion is provided, and the light beam is confined by using the light transmitting portion of the light blocking sheet. Thus, when the light beam emitted by the light source emitter through the emitting opening passes through the light transmission part of the light blocking sheet, a light transmission light beam which is smaller and converged than the original light beam is formed, the light transmission light beam propagates into the light guide beam inserter, propagates to the endoscope body through the light guide hole of the light guide beam inserter, and irradiates the observation body to realize observation.
In some embodiments of the present invention, a light hole 1240 is provided in the middle of the light blocking sheet; the end surface of the light guide beam inserter 14 protruding from the first inner side surface 122 is provided with a light guide hole 140; the center of the light hole 1240 is opposite to the center of the light guide hole 140; the light beam emitted by the light source emitter 123 through the emission opening penetrates through the light transmission hole 1240 to form a light transmission light beam with the shape consistent with that of the light transmission hole 1240, the light transmission light beam propagates into the light guide beam inserter 14, propagates to the endoscope body 11 through the light guide beam inserter 14, and irradiates the observation body to realize observation.
In the embodiment of the invention, the central part on the light blocking sheet is set as a light transmission area; there is an opaque region on the light blocking sheet surrounding the central portion. In the embodiment of the present invention, the opaque region may be the opaque portion surrounding the rest of the central portion of the light blocking sheet, or may be a portion of the opaque portion surrounding the central portion of the light blocking sheet, which is not limited in the embodiment of the present invention.
Therefore, in the embodiment of the present invention, the material of the light blocking sheet may be divided into transparent material and non-transparent material, so that the light transmitting portions of the light blocking sheet are arranged differently for different materials of the light blocking sheet. The light blocking sheet is a temperature resistant material (including but not limited to metal, ceramic, plastic, glass, etc.) as close as possible to the light guide beam inserter 14.
In some embodiments of the present invention, the light blocking sheet comprises: the non-transparent material of any one of metal, ceramic or plastic, the embodiment of the invention is not limited.
Then, as shown in fig. 4, when the material of the light blocking sheet is a non-transparent material, the light transmitting hole 1240 is formed by punching in the middle of the light blocking sheet; alternatively, the light blocking sheet having the light transmitting holes 1240 is obtained by integral molding.
In some embodiments of the present invention, the material of the light blocking sheet includes: glass or crystal, and embodiments of the present invention are not limited.
Then, the light-transmitting holes are formed by adding a shield to the light-blocking sheet except for the light-transmitting holes.
In the embodiment of the invention, the shielding mode of the light blocking sheet except the light holes can be black coating or plating, and the embodiment of the invention is not limited.
In the embodiment of the present invention, the center of the light hole 1240 is opposite to the center of the light guide hole 140 and the center of the emitting port of the light source emitter 123, so that the light beam emitted by the light source emitter 123 irradiates the light hole 1240 without being completely blocked, and the center of the light hole 1240 and the center of the light guide hole 140 of the light guide beam inserter 14 are in the same straight line, so that the light transmission is realized by irradiating the light beam to the light guide fiber (i.e., the optical fiber) in the light guide beam inserter.
In the embodiment of the present invention, the light source of the light source device 12 may be a xenon lamp, an LED, a laser, or the like, and the embodiment of the present invention is not limited thereto.
In the embodiment of the present invention, it is preferable that the center of the light transmitting hole 1240 is opposite to the center of the light guiding hole 140 and the center of the emitting port of the light source emitter 123, respectively.
As shown in fig. 5, the center of the light hole 1240 is aligned with the center of the light guide hole 140 and the center of the emission port of the light source emitter 123, respectively, when the light beam a emitted from the light source emitter 123 through the emission port passes through the light hole 1240 to form a light-transmitting beam B having the same shape as the light hole 1240, the light-transmitting beam B can propagate into the light guide hole inserter 14 and then propagate to the endoscope body 11 through the light guide hole inserter 14, and illuminate the observation body to achieve the observation.
In some embodiments of the invention, the size of the light-transmitting aperture is less than or equal to the size of the light-guiding aperture.
The light beam passes through the light transmission hole 1240 to form a light transmission light beam with the same size as the light transmission hole 1240, the size of the light transmission light beam is smaller than or equal to the size of the light guide hole 140, and the light transmission light beam is directly transmitted into the optical fiber in the light guide hole 14 through the light guide hole 140 of the light guide hole inserter 14.
Note that, the size of the light beam formed by the light beam passing through the light transmission hole 1240 is identical to the size of the light transmission hole 1240.
It will be appreciated that if the light blocking sheet is opaque (e.g., metal, ceramic, plastic, etc.), 1 aperture (not limited to a circular shape, but in various shapes) is left in the middle of the light blocking sheet, and preferably has a diameter slightly smaller (as well as slightly larger or slightly less effective) than the light guide insert 14, so that most of the light is directly transmitted from the optical fiber, and only a small portion or no light falls on the outer surface of the light guide insert 14. Thus, the temperature of the beam inserter is reduced.
In the embodiment of the present invention, if the material of the light blocking sheet is transparent (such as glass, crystal, etc.), the rest of the light blocking sheet except the light holes is light-tight (such as black coating, plating, etc.), and the diameter of the light holes is preferably slightly smaller (the same or slightly larger, the effect is slightly worse) than the light guide beam insertion portion, but the embodiment of the present invention may not limit the specific size of the light holes, as long as part of the light beams can be blocked from irradiating the surface of the outer layer of the light guide beam inserter 14.
In some embodiments of the present invention, as shown in fig. 6, the optical constrainer 124 includes: a lens; the end surface of the light guide beam inserter 14 protruding from the first inner side surface is provided with a light guide hole; the lens is disposed between the light source emitter 123 and the light guide inserter 14, with the focal center of the lens opposite the center of the light guide hole 140; the light beam emitted by the light source emitter 123 through the emission port is converged into a beam of converging light beam, the converging light beam propagates into the light guide beam inserter 14, propagates to the endoscope body 11 through the light guide hole 140 of the light guide beam inserter 14, and irradiates the observation body to realize observation.
Preferably, the focal center of the lens is opposite to the center of the light guide hole 140 and the center of the emission port of the light source emitter 123, respectively.
In the embodiment of the present invention, the optical limiter 124 may be implemented by a light barrier, and the optical limiter 124 may be implemented by a lens, where the lens is disposed between the emitting port of the light source emitter 123 and the light guide beam inserter 14, and the light beam emitted from the emitting port of the light source emitter 123 is collected into a spot or point (i.e., a collected light beam) by using the lens collecting principle, and because the focal center of the lens is opposite to the center of the light guide hole 140 and the center of the emitting port of the light source emitter 123, respectively, the collected light beam emitted from the lens may fall on all or most of the optical fibers in the light guide beam inserter 14, and no or a small portion of the light falls on the surface of the light guide beam inserter. Thus, the temperature of the beam inserter is reduced.
In an embodiment of the present invention, the lens may be fixed to the bottom plate of the light source device 12 by a mount.
Illustratively, as shown in fig. 7, the focal length center of the lens is aligned with the center of the light guide hole 140 and the center of the emission port of the light source emitter 123, respectively, when the light beam a emitted from the light source emitter 123 through the emission port passes through the lens to form a converging light beam B, the converging light beam B can propagate to the optical fiber in the light guide hole 14 because the focal length center of the lens is aligned with the center of the light guide hole 140 of the light guide hole inserter 14, and then propagates to the endoscope body 11 through the light guide hole inserter 14 to irradiate the observation body to achieve the observation.
In some embodiments of the present invention, as shown in fig. 8, a fan 17 is fixedly disposed in the light source device 12;
preferably, the fan is disposed at a side of the light guide beam inserter 14 and/or at a position opposite to the emitting port of the light source emitter 123; the fan is used for radiating the light guide beam inserter 14, and the embodiment of the invention does not limit the setting position of the fan, so long as the fan can blow to the light guide beam inserter 14.
In some embodiments of the present invention, the fan may be disposed on a side opposite to the light source emitter, and the embodiment of the present invention does not limit the disposition position of the fan.
Illustratively, as shown in fig. 9, when the light beam a emitted from the light source emitter 123 through the emission port propagates to the optical fiber in the light guide beam inserter 14, heat can be dissipated by the wind blown out by the fan, and the temperature of the surface of the light guide beam inserter 14 can be reduced.
It should be noted that the arrangement and the manner of the optical confinement device 124 according to the embodiments of the present invention may be applied to all devices provided with the light source device 12 and the light guide inserter 14 for transmitting light beams with the light source device 12, which are not limited by the embodiments of the present invention.
In the embodiment of the invention, the restraint device is arranged in the light source device in the endoscope and is arranged between the light source emitter and the light guide beam inserter, so that under the restraint of the restraint device, the light beam emitted from the light source emitter of the light source device can restrain the light beam transmitted inside the light guide beam inserter, the irradiation of the light source directly to the light guide beam inserter is reduced, the damage of the high-intensity light source to the optical fiber in the light guide beam inserter is avoided, the light transmission of the endoscope is kept stable, and the performance stability of the endoscope is ensured. The specific light restraint can be realized by a light blocking sheet, a lens or other devices capable of focusing light, the embodiment of the invention is not limited, and the embodiment of the invention can also reduce the light guide beam inserter by arranging a fan.
Then, an embodiment of the present invention provides an optical transmission method, as shown in fig. 10, applied to an endoscope, the endoscope including: an endoscope body and a light source device for emitting a light source to the endoscope body; the light source device is fixedly provided with a light source emitter and a light restraint device, and the endoscope body is connected with the light source device through a light guide beam line, and the method can comprise the following steps:
s101, emitting a first light beam through a light source emitter; wherein, the end part of the light guide beam line is provided with a light guide beam inserter; the light restrictor is disposed between the light source emitter and the light guide beam inserter.
S102, restraining the first light beam in the light guide beam inserter through a light restraint device.
S103, the first light beam is transmitted to the endoscope body through the light guide beam inserter and irradiates the endoscope body to realize observation.
The optical transmission method provided by the embodiment of the invention is realized based on the structure that the optical restraint device is arranged in the endoscope. That is, the endoscope includes: an endoscope body, a light source device for emitting a light source to the endoscope body; the endoscope body is connected with the light source device through a light guide beam line; wherein the first outer side surface of the light source device is provided with an insertion connector; the end part of the light guide beam wire is provided with a light guide beam inserter, the light guide beam inserter is inserted with the insertion connector, and the light guide beam inserter penetrates through the first outer side surface and protrudes out of the first inner side surface of the light source device; the light source device is internally and fixedly provided with a light source emitter and a light restraint device, and the light source emitter is opposite to the first inner side surface; the light restrictor is disposed between the light source emitter and the light guide beam inserter.
In an embodiment of the invention, the light restrictor is disposed between the light source emitter and the light guide beam inserter. The light beam emitted by the light source emitter is restrained in the light guide beam inserter through the light guide beam restraint device, and propagates to the endoscope body through the light guide beam inserter, and irradiates the observation body to realize observation.
In the embodiment of the present invention, the optical limiter may be at least one of a light blocking sheet and a lens, and the embodiment of the present invention is not limited. Detailed description the foregoing embodiments have been described and are not repeated here.
It can be understood that, since the restraint device is arranged in the light source device in the endoscope and is arranged between the light source emitter and the light guide beam inserter, under the restraint of the restraint device, the light beam emitted from the light source emitter of the light source device can restrain the light beam transmitted inside the light guide beam inserter, so that the irradiation of the light source directly to the light guide beam inserter is reduced, the damage of the high-intensity light source to the optical fiber in the light guide beam inserter is avoided, the light transmission of the endoscope is kept stable, and the performance stability of the endoscope is ensured.
In some embodiments of the invention, the fan is activated when the first light beam is constrained within the light guide beam inserter by the light constrainer; the wind blown to the beam inserter is generated by the fan to radiate heat.
Preferably, the fan is arranged at the side of the light guide beam inserter and/or at the position of the opposite emitting ports of the light source emitter; the fan is used for radiating the light guide beam inserter, and the embodiment of the invention does not limit the setting position of the fan, so long as the fan can blow to the light guide beam inserter.
It will be appreciated that heat dissipation may be provided by a fan to reduce the temperature of the surface of the beam interposer.
The endoscope provided by the embodiment of the invention can be realized by combining the light blocking sheet, the lens and the fan, wherein:
according to the first scheme, the optical restrictor in the endoscope can be realized only through the light blocking sheet, when the light beam emitted by the light source emitter through the emission port passes through the light transmission part of the light blocking sheet, a light transmission light beam which is smaller and converged than the original light beam is formed, the light transmission light beam propagates into the light guide beam inserter, propagates to the endoscope body through the light guide beam inserter, and irradiates the observation body to realize observation.
In the second scheme, the optical restraint device in the endoscope can be realized only through the lens, the light beam emitted by the light source emitter through the emission port penetrates through the lens and is gathered into a beam of gathered light beam, the gathered light beam is transmitted into the light guide beam inserter, and is transmitted to the endoscope body through the light guide beam inserter, and the observation body is irradiated to realize observation.
The light restraint device in the endoscope can be realized through the light blocking sheet and the lens, the light blocking sheet and the lens are sequentially arranged between the light source emitter and the light guide beam inserter, the sequence of the light source emitter and the light guide beam inserter is not limited, the light beams emitted by the light source emitter through the emitting port penetrate through the lens and the light blocking sheet and are gathered into one light beam, the one light beam is transmitted into the light guide beam inserter, and is transmitted to the endoscope body through the light guide beam inserter, and the observation body is irradiated to realize observation.
It should be noted that, the above three schemes can be combined with the fan to realize the heat dissipation of the light guide beam inserter, so as to achieve better heat dissipation effect, and the embodiments of the present invention are not limited.
Further, the optical transmission method provided by the embodiment of the invention may further include: S104-S106. The following are provided:
s104, obtaining an observation signal by irradiating the observation body.
S105, transmitting the observation signal to an endoscope image processing device for information processing to obtain an endoscope observation image.
S106, displaying the observation image.
In an embodiment of the present invention, the endoscope further includes: an endoscopic image processing device for processing the observed result. The endoscope image processing device 15 is configured to receive an observation signal fed back by irradiation from the endoscope body 11, process and image the observation signal, and obtain an observation image, so as to facilitate analysis and viewing by a doctor or observer.
In the embodiment of the invention, the light beam emitted by the light source emitter is restrained in the light guide beam inserter through the light guide beam restraint device, is transmitted to the endoscope body through the light guide beam inserter, irradiates the observation body to realize observation, obtains an observation signal, and then transmits the observation signal to the endoscope image processing device through the first connecting wire for information processing, so as to obtain an endoscope observation image.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in an article or apparatus that comprises the element.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but is intended to cover all equivalent structures modifications, direct or indirect application in other related arts, which are included in the scope of the present invention.
Claims (10)
1. An endoscope, comprising: an endoscope body, a light source device for emitting a light source to the endoscope body; the endoscope body is connected with the light source device through a light guide beam line; wherein,
the light source device is provided with an insertion connector;
the end part of the light guide beam line is provided with a light guide beam inserter, and the light guide beam inserter is inserted with the insertion connector; the light guide beam line is hollow and is paved with optical fibers; one end of the optical fiber is arranged inside the light guide inserter;
the light source device is internally and fixedly provided with a light source emitter and a light restraint device, and the light restraint device is arranged between the light source emitter and the light guide beam inserter;
the light beam emitted by the light source emitter is restrained in the light guide beam inserter through the light restraint device, and propagates to the endoscope body through the light guide beam inserter, and irradiates an observation body to realize observation;
wherein, the light guide beam inserter passes the first lateral surface of light source device, and outstanding in the first medial surface of light source device, the terminal surface that the light guide beam inserter outstanding in first medial surface is provided with the leaded light hole, the light restraint includes: a light blocking sheet; the light blocking sheet is used for blocking the light beam emitted by the light source emitter, so that the light beam is restrained to propagate inside the light guide beam inserter, a light transmission hole is formed in the middle of the light blocking sheet, and the size of the light transmission hole is smaller than or equal to that of the light guide hole of the light guide beam inserter.
2. An endoscope as in claim 1 wherein,
the center of the light restraint is opposite to the center of the light guide hole.
3. An endoscope as in claim 1 wherein,
the light source emitter transmits the light beam emitted by the emitting port through the light hole to form a light-transmitting light beam with the same shape as the light hole, the light-transmitting light beam propagates into the light guide beam inserter, propagates to the endoscope body through the light guide hole of the light guide beam inserter, and irradiates the observation body to realize observation.
4. An endoscope as in claim 3 wherein,
the light beam penetrates through the light transmission hole to form a light transmission light beam consistent with the size of the light transmission hole, the size of the light transmission light beam is smaller than or equal to the size of the light guide hole, and the light transmission light beam is directly transmitted onto the optical fiber in the light guide beam inserter through the light guide hole of the light guide beam inserter.
5. An endoscope as claimed in any one of claims 1 to 4 wherein,
the central part of the light blocking sheet is a light transmission area;
the light blocking sheet has an opaque region around a central portion.
6. An endoscope as in claim 5 wherein,
the light blocking sheet comprises the following materials: any one of metal, ceramic or plastic is a non-transparent material;
and forming the light hole by punching the middle of the light blocking sheet, or obtaining the light blocking sheet with the light hole by integral molding.
7. An endoscope as in claim 5 wherein,
the light blocking sheet comprises the following materials: any transparent material of glass or crystal;
and shielding is added to the part, except the light holes, of the light blocking sheet to form the light holes.
8. An endoscope as in claim 1 wherein,
a fan is fixedly arranged in the light source device;
the fan is arranged at the side edge of the light guide beam inserter and/or at the position where the emitting ports of the light source emitters are opposite;
the fan is used for radiating the light guide beam inserter.
9. An endoscope as in claim 1 wherein,
the light source emitter emits a light beam which is restrained on the optical fiber of the light guide inserter through the light restraint device, propagates to the endoscope body through the optical fiber, and irradiates the observation body to realize observation.
10. The endoscope of claim 1, wherein the endoscope further comprises: an endoscope image processing device for processing the observed result, the endoscope body being connected to the endoscope image processing device through a first connection line;
the light beam emitted by the light source emitter is restrained in the light guide beam inserter through the light restraint device, is transmitted to the endoscope body through the light guide beam inserter, irradiates the observation body to realize observation, obtains an observation signal, and transmits the observation signal to the endoscope image processing device through the first connecting wire for information processing, so that an endoscope observation image is obtained.
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| CN201810887503.3A CN109106324B (en) | 2018-08-06 | 2018-08-06 | Endoscope and light transmission method |
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| CN110123249B (en) * | 2019-04-09 | 2022-02-01 | 苏州西能捷科技发展有限公司 | Nasosinusitis detection device and use method thereof |
| CN110123247B (en) * | 2019-04-09 | 2021-12-28 | 苏州西能捷科技发展有限公司 | Nasosinusitis detection system |
| CN113827172A (en) * | 2020-12-30 | 2021-12-24 | 深圳迈瑞生物医疗电子股份有限公司 | Endoscope light source device and endoscope imaging system |
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