CN219516170U - Device for coupling gap between medical hard tube endoscope and optical fiber - Google Patents
Device for coupling gap between medical hard tube endoscope and optical fiber Download PDFInfo
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- CN219516170U CN219516170U CN202222947937.2U CN202222947937U CN219516170U CN 219516170 U CN219516170 U CN 219516170U CN 202222947937 U CN202222947937 U CN 202222947937U CN 219516170 U CN219516170 U CN 219516170U
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- endoscope
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- optical fiber
- hard tube
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Abstract
The utility model provides a device for a coupling gap between a medical hard tube endoscope and an optical fiber, and belongs to the technical field of hard tube endoscopes. The device for coupling the medical hard tube endoscope and the optical fiber comprises a light source assembly and an endoscope assembly. The light source assembly comprises an optical fiber and a light cone A, wherein the optical fiber is fixedly connected with the tail section of the light cone A, a connecting piece is movably connected onto the light cone A, the endoscope assembly comprises a connecting pipe and a light cone B, the light cone B is fixedly connected with the inner wall of the connecting pipe, and the connecting pipe is in threaded connection with the connecting piece. In the utility model, the light cone B in the endoscope assembly is provided with the limiting hole for limiting the head of the light cone A in the light source assembly so as to ensure the coaxiality and the gap between the light cone A and the light cone B, reduce the light source loss during optical coupling, and avoid the problem of scalding hands when a doctor holds a mirror due to illumination and heating of the light cone B.
Description
Technical Field
The utility model relates to the technical field of hard tube endoscopes, in particular to a device for coupling a gap between a medical hard tube endoscope and an optical fiber.
Background
The endoscopes with different purposes are manufactured into different shapes, outer diameters and lengths according to the use requirements so as to meet the use requirements. The illumination transmission system consists of an optical fiber, and transmits the light of the cold light source to the front end of the endoscope through the optical fiber to illuminate the observed object. The hard tube endoscope has various specifications such as laparoscope, otorhinolaryngoscope, hysteroscope, arthroscope and the like of 10mm,5mm,4mm,3.5mm and the like, the optical fiber also has various specifications such as 4.8mm,4mm,3.5mm,2.5mm and the like, the optical fiber is used as a substrate or a platform, and the endoscope with a specific model can be butted on the optical fiber, so that the situation that a doctor needs to assemble the endoscope by himself exists, and assembly errors possibly occur after each assembly.
As shown in fig. 2, since the assembly accuracy of the 10 optical fiber taper and the 20 hard tube endoscope taper is not high, the distance of the coupling gap c may be relatively large, and the irradiation direction 11 of the light irradiates the b, resulting in heat generation at the b;
as shown in fig. 3, also because the assembly accuracy of the 10 optical fiber taper and the 20 hard tube endoscope taper is not high, the coaxiality is poor, namely, the eccentricity problem is caused, the irradiation direction 11 of the light irradiates the a position, the a position heats,
both of these conditions result in heat transfer to the surface of the 20 hard tube endoscope, which can be scalded and lost when the physician grips the surface of the 20 hard tube endoscope during surgery.
Disclosure of Invention
In order to overcome the defects, the utility model provides a device for a coupling gap between a medical hard tube endoscope and an optical fiber, which aims to solve the problems of heat and scalding of the endoscope caused by poor gap and coaxiality between the optical fiber light cone and the hard tube endoscope in the background technology.
The utility model provides a device for coupling a medical hard tube endoscope with a fiber optic coupling gap, which comprises a light source assembly and an endoscope assembly.
The light source assembly comprises an optical fiber and a light cone A, wherein the optical fiber is fixedly connected with the tail section of the light cone A, a connecting piece is movably connected to the light cone A, the endoscope assembly comprises a connecting pipe and a light cone B, the light cone B is fixedly connected with the inner wall of the connecting pipe, the connecting pipe is in threaded connection with the connecting piece, and a limiting hole is formed in the inner wall of the connecting pipe and is matched with the head of the light cone A.
Further, the connecting piece comprises a fixed sleeve and a sleeve, wherein the fixed sleeve is in threaded connection with the light cone A, and the sleeve is movably sleeved on the light cone A.
Further, the light cone A is provided with an end face A, and the inner wall of the sleeve is provided with a clamping ring which is positioned between the end face A and the fixed sleeve.
Further, a notch is formed in the fixing sleeve.
Furthermore, the inner wall of the connecting pipe is provided with an end face B, and the end face of the light cone B is fixedly attached to the end face B.
Further, the limiting hole provides a limiting inner wall and a limiting step, the limiting inner wall is movably sleeved on the outer circle of the light cone A, and the limiting step abuts against the threaded end face of the light cone A.
Further, the sleeve is in threaded connection with the connecting pipe.
Further, the endoscope assembly further comprises a hard tube endoscope body, the connecting tube is fixedly connected with the hard tube endoscope body, and the light cone B is fixedly communicated with the hard tube endoscope body.
Compared with the prior art, the utility model has the beneficial effects that: the light cone B in the endoscope assembly is provided with a limiting hole for limiting the head of the light cone A in the light source assembly so as to ensure coaxiality and gaps between the light cone A and the light cone B, reduce light source loss during optical coupling, and avoid the problem that the light cone B is heated by illumination, and the doctor burns hands when holding the mirror.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a device for providing a coupling gap between a medical hard tube endoscope and an optical fiber according to an embodiment of the present utility model;
FIG. 2 is a schematic view of an endoscope with an excessive light coupling gap in the prior art;
FIG. 3 is a schematic view of an endoscope in prior art optically coupled eccentric conditions;
FIG. 4 is a schematic view of a connection relationship between a fixing sleeve and a casing according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram of a coupling relationship structure between light cone A and light cone B according to an embodiment of the present utility model;
fig. 6 is a schematic view of a partial enlarged structure at a in fig. 5 according to an embodiment of the present utility model.
In the figure: 100-a light source assembly; 110-optical fiber; 120-cone A; 130-a connector; 131-fixing sleeve; 132-a sleeve; 140-end face A; 200-an endoscope assembly; 210-connecting the pipes; 220-cone B; 230-limiting holes; 240-end face B; 250-hard tube endoscope body.
Detailed Description
The technical solutions in the embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Referring to fig. 1, the present utility model provides a device for coupling a hard tube endoscope to a fiber optic coupling gap, which comprises a light source assembly 100 and an endoscope assembly 200.
The light cone B220 in the endoscope assembly 200 provides a limiting hole 230 for limiting the head of the light cone a120 in the light source assembly 100, so as to ensure coaxiality and clearance between the light cone a120 and the light cone B220, reduce light source loss during optical coupling, and avoid the problem that the light cone B220 is heated by illumination, resulting in scalding hands when a doctor holds a mirror.
Referring to fig. 4-6, a light source assembly 100 includes an optical fiber 110 and a light cone a120, the optical fiber 110 is fixedly connected with a tail section of the light cone a120, a connecting member 130 is movably connected to the light cone a120, an endoscope assembly 200 includes a connecting tube 210 and a light cone B220, the light cone B220 is fixedly connected with an inner wall of the connecting tube 210, the connecting tube 210 is screwed with the connecting member 130, and a limiting hole 230 is formed in the inner wall of the connecting tube 210 and adapted to a head of the light cone a120. Here, insert light cone a120 in the spacing hole 230 in light cone B220, spacing hole 230 carries out spacingly to light cone a120, guarantee that light cone a120 and light cone B220's optical coupling state is in reasonable within range, avoid the light coupling clearance too big or light cone a120 and light cone B220 are not coaxial, lead to light that light cone a120 sent to shine on light cone B220 terminal surface, and then lead to light cone B220 terminal surface to generate heat, finally lead to the condition that hard tube endoscope scalds one's hand, in sum, light cone B220 in endoscope assembly 200 provides spacing hole 230, be used for spacing light cone a120 head in light source assembly 100, so as to ensure axiality and clearance between light cone a120 and the light cone B220, the light source loss during the light coupling has been reduced, avoided light cone B220 to be heated by the illumination, lead to the problem of scalding one's hand when doctor holds one's hand.
Referring to fig. 4-6, the connecting member 130 includes a fixing sleeve 131 and a sleeve 132, the fixing sleeve 131 is screwed with the light cone a120, and the sleeve 132 is movably sleeved on the light cone a120. The light cone A120 is provided with an end face A140, and the inner wall of the sleeve 132 is provided with a clamping ring positioned between the end face A140 and the fixed sleeve 131. Here, the sleeve 132 is first sleeved on the light cone a120, and then the fixing sleeve 131 is screwed on the light cone a120, so that the sleeve 132 is limited on the outer circle of the light cone a120, and the sleeve 132 can freely rotate and has a certain axial movement range, so that the sleeve is convenient to be connected with the connecting pipe 210.
Referring to fig. 4 to 5, the fixing sleeve 131 is provided with a notch. Here, since the fixing sleeve 131 is positioned on the inner wall of the sleeve 132, it is inconvenient to screw by hand, and thus, a gap is provided on the fixing sleeve 131, so that an external tool can be conveniently used, inserted into the gap, to rotate the fixing sleeve 131 and screw down for fixing.
Referring to fig. 4-6, an end face B240 is disposed on an inner wall of the connecting tube 210, and an end face of the light cone B220 is fixedly attached to the end face B240. Here, the light cone B220 abuts against the end face B240 of the inner wall of the connecting pipe 210, and after the light cone a120 is limited by the limiting hole 230, a gap between the light cone a120 and the light cone B220 can be ensured to be in a reasonable range, so that the too large gap is avoided, and the light emitted by the light cone a120 diverges and irradiates the end face of the light cone B220.
Referring to fig. 4-6, the limiting hole 230 provides a limiting inner wall movably sleeved on the outer circle of the light cone a120 and a limiting step abutted against the threaded end surface of the light cone a120. The sleeve 132 is screwed with the connection pipe 210. Here, when the light cone a120 is inserted into the limiting hole 230, the limiting inner wall plays a role in guiding the light cone a120, ensuring coaxiality between the light cone a120 and the light cone B220, the limiting step abuts against the threaded end surface of the light cone a120, playing a role in limiting axially, ensuring an optical coupling gap between the light cone a120 and the light cone B220, comprehensively playing a role in ensuring an optical coupling effect, and the sleeve 132 and the connecting pipe 210 have a larger screw-on gap so as to adapt to cooperation of the light cone a120 and the limiting hole 230.
Referring to fig. 1-6, the endoscope assembly 200 further includes a rigid tube endoscope body 250, the connection tube 210 is fixedly connected to the rigid tube endoscope body 250, and the light cone B220 is fixedly connected to the rigid tube endoscope body 250. Here, the hard tube endoscope body 250 is a hard tube endoscope, and the connection tube 210 and the hard tube endoscope body 250 are connected and fixed in advance, and the light source unit 100 may be connected to the connection tube 210 when in use.
The working principle of the device for the coupling gap between the medical hard tube endoscope and the optical fiber is as follows: the sleeve 132 is sleeved on the light cone A120, the fixing sleeve 131 is screwed on the light cone A120, an external tool is used for being inserted into the opening, the fixing sleeve 131 is rotated and screwed down for fixing, the sleeve 132 is limited on the outer circle of the light cone A120, when the light cone A120 is inserted into the limiting hole 230, the limiting inner wall plays a role in guiding the light cone A120, the coaxiality between the light cone A120 and the light cone B220 is ensured, the limiting step is abutted against the threaded end surface of the light cone A120, the axial limiting effect is realized, the optical coupling gap between the light cone A120 and the light cone B220 is ensured, the sleeve 132 and the connecting pipe 210 have larger screw-on gap, so that the self-adapting light cone A120 is matched with the limiting hole 230, finally, the optical coupling state of the light cone A120 and the light cone B220 is ensured to be in a reasonable range, the situation that the optical coupling gap is overlarge or the light cone A120 and the light cone B220 are not coaxial is avoided, light emitted by the light cone A120 irradiates the end face of the light cone B220, the end face of the light cone B220 is further heated, finally, the condition that a hard tube endoscope burns hands is caused, in sum, the light cone B220 in the endoscope assembly 200 is provided with a limiting hole 230 for limiting the head of the light cone A120 in the light source assembly 100, so that coaxiality and gap between the light cone A120 and the light cone B220 are ensured, light source loss during optical coupling is reduced, the problem that the light cone B220 is heated by illumination, and hands are scalded when a doctor holds a mirror is avoided.
It should be noted that, specific model specifications of the optical fiber 110 and the hard tube endoscope body 250 need to be determined by selecting a model according to actual specifications of the device, and a specific model selection calculation method adopts the prior art, so detailed description is omitted.
The power supply to the rigid endoscope body 250 and its principles will be apparent to those skilled in the art and will not be described in detail herein.
The above embodiments of the present utility model are only examples, and are not intended to limit the scope of the present utility model, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (8)
1. A device for coupling a medical hard tube endoscope to a fiber optic coupling gap, comprising
The light source assembly (100), the light source assembly (100) comprises an optical fiber (110) and a light cone A (120), the optical fiber (110) is fixedly connected with the tail section of the light cone A (120), and a connecting piece (130) is movably connected on the light cone A (120);
the endoscope assembly (200), the endoscope assembly (200) is including connecting pipe (210) and light cone B (220), light cone B (220) with connecting pipe (210) inner wall fixed connection, connecting pipe (210) with connecting piece (130) spiro union, connecting pipe (210) inner wall be provided with spacing hole (230) with light cone A (120) head looks adaptation.
2. The device for coupling a hard tube endoscope and an optical fiber according to claim 1, wherein the connecting member (130) comprises a fixing sleeve (131) and a sleeve (132), the fixing sleeve (131) is screwed with the light cone a (120), and the sleeve (132) is movably sleeved on the light cone a (120).
3. A device for coupling a medical hard tube endoscope to a fiber optic according to claim 2, wherein the light cone a (120) is provided with an end face a (140), and the inner wall of the sleeve (132) is provided with a clamping ring between the end face a (140) and the fixing sleeve (131).
4. A device for coupling a medical hard tube endoscope to a fiber optic according to claim 3, wherein said retaining sleeve (131) is provided with a notch.
5. The device for coupling a hard tube endoscope to a fiber optic according to claim 4, wherein an end face B (240) is provided on an inner wall of the connecting tube (210), and the end face of the light cone B (220) is fixedly attached to the end face B (240).
6. The device for coupling a hard tube endoscope and an optical fiber according to claim 5, wherein the limiting hole (230) provides a limiting inner wall and a limiting step, the limiting inner wall is movably sleeved on the outer circle of the light cone A (120), and the limiting step is abutted against the threaded end face of the light cone A (120).
7. The device of claim 6, wherein the sleeve (132) is threaded with the connection tube (210).
8. The device of claim 7, wherein the endoscope assembly (200) further comprises a rigid tube endoscope body (250), the connecting tube (210) is fixedly connected to the rigid tube endoscope body (250), and the light cone B (220) is fixedly connected to the rigid tube endoscope body (250).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222947937.2U CN219516170U (en) | 2022-11-04 | 2022-11-04 | Device for coupling gap between medical hard tube endoscope and optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222947937.2U CN219516170U (en) | 2022-11-04 | 2022-11-04 | Device for coupling gap between medical hard tube endoscope and optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219516170U true CN219516170U (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222947937.2U Active CN219516170U (en) | 2022-11-04 | 2022-11-04 | Device for coupling gap between medical hard tube endoscope and optical fiber |
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| Country | Link |
|---|---|
| CN (1) | CN219516170U (en) |
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- 2022-11-04 CN CN202222947937.2U patent/CN219516170U/en active Active
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