CN109567728B - Optical coupling heat treatment device for electronic endoscope - Google Patents

Abstract

The invention discloses an optical coupling heat treatment device for an electronic endoscope, which comprises an endoscope body and an illumination module, wherein the endoscope body comprises a metal rod, a light receiving end is arranged in the metal rod, an installation cavity is arranged at the end part of the metal rod, which is close to the illumination module, a lens is arranged in the installation cavity, a light shielding plate is connected to one end, which is close to the illumination module, of the metal rod, a conical light through hole is arranged in the middle of the light shielding plate, and the diameter of a light inlet surface of the conical light through hole is larger than that of a light outlet surface. The invention improves the transmission efficiency of the system light source by arranging the light screen and arranging the conical light through hole on the light screen, and the arrangement of the reflector avoids the direct irradiation of light rays which are not absorbed by the light receiving end on the metal rod, thereby effectively avoiding the generation of high temperature phenomenon and ensuring the safety of operators.

Description

Optical coupling heat treatment device for electronic endoscope

Technical Field

The invention relates to the technical field of electronic endoscopes, in particular to an optical coupling heat treatment device for an electronic endoscope.

Background

Electronic endoscope systems are increasingly used in medical examinations and surgeries, and light sources provide the systems with continuous illumination and air pressure during the examination or surgery. The illumination system provides illumination for image acquisition at the front end of the endoscope body, so that the utilization efficiency of a light source of the endoscope body needs to be provided as far as possible under a limited illumination light source to ensure the illumination brightness of the head end of the endoscope body. At the same time, the system provides a high-brightness light source, and simultaneously generates larger heat at the light coupling part to form high temperature, so as to prevent the risk of injury to operators caused by the high temperature, the following invention proposal is provided.

At present, the existing structural scheme is as shown in fig. 1, a part of light coming out through the lens group I enters the optical fiber receiving end III through the end glass window of the light guide rod II, and a part of light irradiates on the outer wall of the light guide rod II, wherein the light absorbed by the optical fiber receiving end III is needed by the system, and the light irradiating on the outer wall of the light guide rod II can generate a large amount of heat, so that the light guide rod can have a higher temperature when the system works, and when the operation is finished, the light guide rod II as a part of the endoscope body can be pulled out of the light source and exposed in the external space which can be contacted by an operator, and the risk of injury to the operator exists.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a heat treatment apparatus for optical coupling of an electronic endoscope, which can prevent heat at the optical coupling of the endoscope from causing injury to an operator.

The technical scheme of the invention is as follows:

the utility model provides an optical coupling heat treatment device for electronic endoscope, includes the endoscope mirror body and illumination module, the endoscope mirror body includes the metal pole, installs the light receiving terminal in this metal pole, the metal pole is close to the one end tip of illumination module is provided with an installation cavity, installs the lens in this installation cavity be close to on the metal pole the one end of illumination module is connected with the light screen, and the middle part of this light screen is provided with the logical unthreaded hole of toper, just the diameter that the income plain noodles of unthreaded hole of toper is greater than the diameter on play plain noodles.

Preferably, a groove is arranged on one side of the light shielding plate close to the metal rod, and the end part of the metal rod is embedded into the groove.

Preferably, a reflector is installed between the bottom of the installation cavity and the lens, and the reflector is sleeved on the light receiving end. By the arrangement, the phenomenon that the light which cannot be absorbed by the light receiving end directly irradiates on the metal rod to generate high temperature is avoided.

Preferably, the reflector is a ceramic sheet, a PET reflective film or a reflective lens.

Preferably, a groove is formed in the mounting cavity near the outer end thereof, and glue is injected into the groove to connect the metal rod and the lens. So set up, guaranteed the reliability that metal pole and lens are connected.

Has the advantages that: the invention improves the transmission efficiency of the system light source by arranging the light screen and arranging the conical light through hole on the light screen, and the arrangement of the reflector avoids the direct irradiation of light rays which are not absorbed by the light receiving end on the metal rod, thereby effectively avoiding the generation of high temperature phenomenon and ensuring the safety of operators.

Drawings

FIG. 1 is a schematic diagram of a prior art configuration;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at I;

FIG. 4 is a schematic view of a light simulation according to the present invention.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

the optical coupling heat treatment device for the electronic endoscope as shown in the attacheddrawings 2 to 4 comprises anendoscope body 1 and anillumination module 2, wherein theendoscope body 1 comprises acylindrical metal rod 11, alight receiving end 14 is installed in themetal rod 11, aninstallation cavity 15 is arranged at one end part, close to theillumination module 2, of themetal rod 11, alens 12 is installed in theinstallation cavity 15, areflector 13 is further installed between the bottom of theinstallation cavity 15 and thelens 12, thereflector 13 is sleeved on thelight receiving end 14, and thereflector 1 is made of a ceramic sheet, a PET (polyethylene terephthalate) reflective film, a reflective lens or other materials with reflective performance. A groove 16 is arranged in themounting cavity 15 near the outer end thereof, and glue is injected into the groove 16 to connect themetal rod 11 and thelens 12, so that the connection reliability is improved. One end of themetal rod 11 close to thelighting module 2 is connected with alight screen 3, and the middle part of thelight screen 3 is provided with a conical light throughhole 30.

As can be seen from fig. 3, agroove 31 is provided on a side of thelight shielding plate 3 close to themetal rod 11, and an end of themetal rod 11 is embedded in thegroove 31.

Referring to fig. 4, the light emitted from theillumination module 2 passes through thelight shielding plate 3 and enters thelight receiving end 14 of theendoscope body 1. As shown in the figure, the light rays b, d, f pass through the tapered light-transmittinghole 30 and are absorbed by the light-receivingend 14 of theendoscope body 1. The light ray a and the light ray g are shielded by theshading plate 3, the generated heat cannot be absorbed by the metal rod of theendoscope body 1, so that high temperature cannot be generated, and when the system is in operation, themetal rod 11 is exposed in a space which can be contacted by an operator, the operator cannot be injured. And the light rays c and e cannot directly irradiate themetal rod 11 due to the addition of thereflector 13, and no high temperature phenomenon occurs, so that when the metal rod is exposed in a space which can be contacted by an operator after the system works, the operator cannot be injured.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (3)

1. The utility model provides an optical coupling heat treatment device for electron endoscope, includes endoscope mirror body (1) and illumination module (2), endoscope mirror body (1) includes metal pole (11), installs light receiving end (14) in this metal pole (11), metal pole (11) are close to the one end tip of illumination module (2) is provided with a installation cavity (15), installs lens (12), its characterized in that in this installation cavity (15): one end of the metal rod (11) close to the lighting module (2) is connected with a light screen (3), a conical light through hole (30) is formed in the middle of the light screen (3), and the diameter of a light incoming surface of the conical light through hole (30) is larger than that of a light outgoing surface;

a reflective sheet (13) is arranged between the bottom of the mounting cavity (15) and the lens (12), and the reflective sheet (13) is sleeved on the light receiving end (14).

2. The optical coupling heat treatment apparatus for an electronic endoscope according to claim 1, characterized in that: the reflector (13) is a ceramic piece, a PET reflective film or a reflective lens.

3. The optical coupling heat treatment apparatus for an electronic endoscope according to any of claims 1-2, characterized in that: a groove (16) is arranged in the mounting cavity (15) and close to the outer end part of the mounting cavity, and glue is injected into the groove (16) to connect the metal rod (11) and the lens (12).

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