External light transmitting bundle for medical hard lens and preparation method of external light transmitting bundle

Abstract

The invention belongs to the technical field of medical equipment, and relates to an external light transmitting bundle for a medical hard lens and a preparation method thereof. Optical fiber filaments are arranged in the protection tube, the light inlet part and the light outlet part, and the optical fiber filaments are continuous optical fiber filaments; the light inlet part is arranged at one end of the protection tube, and the light outlet part is arranged at the other end of the protection tube; and one end of the optical fiber is welded with one end of the light inlet part. One end of the optical fiber is welded with one end of the light inlet part, so that the connection between the light inlet part and the optical fiber is more stable, high temperature resistance is realized, and the service life is greatly prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment, and in particular relates to an external light guide beam for a medical hard mirror and a preparation method thereof. Background Art

[0002] At present, the application of light guides in the medical field is particularly prominent, especially in endoscopic surgery, where images are transmitted to the post-stage signal processing system through optical fibers and displayed in real time on a dedicated monitor, so that doctors can perform surgical operations accordingly. Light guides are widely used in endoscopic examinations and treatments in the medical field. For example, in hysteroscopic surgery, light guides are used to deliver light to ensure a clear surgical field of view. In addition, light guides are also used in laparoscopic surgery, which is performed through minimally invasive surgery and has the advantages of less trauma and faster recovery. However, light guides with conventional bonding structures are not resistant to high temperatures, have low light transmittance, and have a service life of about 1-2 years.

[0003] Therefore, in view of the problems of the existing light guide beam being not resistant to high temperatures, having low light transmittance and short service life, it is necessary to provide an external light guide beam for a medical hard mirror and a preparation method thereof. Summary of the invention

[0004] The invention provides an external light guide beam for a medical hard mirror and a preparation method thereof, which are used to solve the problems of the light guide beam being not resistant to high temperatures, having low light transmittance, and having a short service life.

[0005] The present invention is realized by the following technical scheme: comprising a protection tube, a light inlet portion, and a light outlet portion;

[0006] Optical fiber filaments are arranged in the protection tube, the light inlet portion and the light outlet portion, and the optical fiber filaments are continuous optical fiber filaments;

[0007] The light inlet portion is arranged at one end of the protection tube, and the light outlet portion is arranged at the other end of the protection tube;

[0008] One end of the optical fiber is fused to one end of the light input portion.

[0009] In order to better implement the present invention, further optimization is made in the above structure, and the cross section of the optical fiber is hexagonal.

[0010] In order to better realize the present invention, further optimization is made in the above structure, the protection tube includes a metal spiral tube and a glass fiber and silicone integrated tube; a metal spiral tube is arranged inside the glass fiber and silicone integrated tube, and the optical fiber filament is arranged inside the metal spiral tube.

[0011] In order to better realize the present invention, further optimization is made in the above structure. The light inlet part includes a first tube, a conversion head, and a handle. One end of the first tube is threadedly connected to one end of the conversion head, one end of the handle is connected to the other end of the conversion head, and a first hardware coupling is clamped in the other end of the handle. The first hardware coupling is welded to one end of the metal spiral tube.

[0012] In order to better implement the present invention, further optimization is made in the above structure, and the optical fiber filament is fused with the other end of the first tube.

[0013] In order to better realize the present invention, further optimization is made in the above structure, the light emitting part includes a connecting piece and a second tube, a second hardware coupling piece is clamped in one end of the connecting piece, the second hardware coupling piece is welded to the other end of the metal spiral tube, and the other end of the connecting piece is threadedly connected to one end of the second tube.

[0014] In order to better implement the present invention, further optimization is made in the above structure, and the optical fiber filament is fused with the other end of the second tube.

[0015] In order to better implement the present invention, further optimization is made in the above structure, and two clamping platforms of different sizes are provided on the connecting piece.

[0016] A method for preparing an external light guide beam for a medical hard mirror comprises the following steps:

[0017] S1: hot-melting one end of the light-inlet portion and one end of the optical fiber, grinding the light-inlet portion and the optical fiber, and grinding the cross section of the optical fiber into a regular hexagon;

[0018] S2: preparing anti-fluorescence interference liquid, and performing anti-fluorescence treatment on the optical fiber;

[0019] S3: Assembling the protection tube, installing the metal spiral tube into the glass fiber and silicone integrated tube;

[0020] S4: Assembling the light inlet and light outlet.

[0021] In order to better implement the present invention, further optimization is made in the above structure, and S4 also includes welding the first hardware combination to one end of the metal spiral tube, and welding the second hardware combination to the other end of the metal spiral tube.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides an external light guide for a medical hard mirror, comprising a protective tube, a light inlet, and a light outlet; the protective tube, the light inlet, and the light outlet are all provided with optical fibers, and the optical fibers are continuous optical fibers; the light inlet is provided at one end of the protective tube, and the light outlet is provided at the other end of the protective tube; one end of the optical fiber is fused with one end of the light inlet. By fusing one end of the optical fiber with one end of the light inlet, the connection between the light inlet and the optical fiber is more stable and resistant to high temperatures, thereby greatly improving its service life.

[0024] The present invention also provides a method for preparing an external light guide beam for a medical hard mirror, comprising the following steps:

[0025] S1: hot-melting one end of the light-inlet portion and one end of the optical fiber, and grinding the light-inlet portion and the optical fiber;

[0026] S2: preparing anti-fluorescence interference liquid, and performing anti-fluorescence treatment on the optical fiber;

[0027] S3: Assembling the protection tube, installing the metal spiral tube into the glass fiber and silicone integrated tube;

[0028] S4: Assembling the light inlet and light outlet.

[0029] This method is used to heat-melt one end of the light input part and one end of the optical fiber, so that the connection between the light input part and the optical fiber is more stable and can withstand the heat generated by light guidance, thereby improving heat resistance and avoiding separation of the light input part and the optical fiber due to excessive heat, thereby greatly improving its service life; and by grinding the light input part and the optical fiber, the cross-section of the optical fiber is ground into a regular hexagon, which greatly improves the light transmittance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a front view of the external light guide beam of the medical hard mirror in the present invention;

[0032] Figure 2 It is a front view of the glass fiber and silicone integrated tube and the metal spiral tube in the present invention;

[0033] Figure 3 It is a front view of the metal spiral tube and the first hardware combination piece in the present invention.

[0034] In the figure:

[0035] 1-optical fiber; 2-metal spiral tube; 3-glass fiber and silicone integrated tube; 4-first tube; 5-conversion head; 6-handle; 7-connector; 8-second tube; 9-first hardware combination part. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise specified, the meaning of "plurality" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Embodiment 1:

[0040] An external light guide beam for a medical hard mirror, comprising a protection tube, a light inlet portion, and a light outlet portion;

[0041] The protective tube, the light inlet and the light outlet are all provided with optical fiber filaments 1, and the optical fiber filaments 1 are continuous optical fiber filaments 1;

[0042] The light inlet portion is arranged at one end of the protection tube, and the light outlet portion is arranged at the other end of the protection tube;

[0043] One end of the optical fiber 1 is fused to one end of the light input portion.

[0044] The above structure, by fusing one end of the optical fiber 1 with one end of the light inlet, makes the connection between the light inlet and the optical fiber 1 more stable and resistant to high temperatures, thereby greatly improving its service life.

[0045] The cross section of the optical fiber 1 is a hexagon. The cross section of the optical fiber 1 is set to a regular hexagon, so that the light transmittance of the optical fiber 1 is greatly improved.

[0046] The protective tube comprises a metal spiral tube 2 and a glass fiber and silicone integrated tube 3; the metal spiral tube 2 is arranged inside the glass fiber and silicone integrated tube 3, and the optical fiber 1 is arranged inside the metal spiral tube 2. The outer layer of the glass fiber and silicone integrated tube is silicone and the inner lining is a glass fiber mesh, that is, the glass fiber and silicone integrated tube 3 is an outer protective layer, and the metal spiral tube 2 provides elasticity and toughness, further protecting the optical fiber 1 arranged inside.

[0047] The light intake part includes a first tube 4, a conversion head 5, and a handle 6. One end of the first tube 4 is threadedly connected to one end of the conversion head 5, and one end of the handle 6 is connected to the other end of the conversion head 5. A first hardware connector 9 is clamped inside the other end of the handle 6, and the first hardware connector 9 is welded to one end of the metal spiral tube 2. The conversion head 5 can be used to replace different types of first tubes 4 according to actual conditions. The first tube 4 is the light intake end; the handle 6 is an insulator for isolating current and heat; one end of the first tube 4 is threadedly connected to one end of the conversion head 5, and the conversion head 5 can be replaced by threading according to actual conditions. By welding the first hardware connector 9 to one end of the metal spiral tube 2, the optical fiber in the metal spiral tube 2 is prevented from falling off due to dragging, thereby extending the service life of the device.

[0048] The optical fiber 1 is fused with the other end of the first tube 4. That is, the end of the optical fiber 1 is fused with the head of the light-incoming end, and the connection method is more stable and resistant to high temperatures.

[0049] The light emitting part includes a connector 7 and a second tube 8, a second hardware connector is clamped in one end of the connector 7, the second hardware connector is welded to the other end of the metal spiral tube 2, and the other end of the connector 7 is threadedly connected to one end of the second tube 8. The connector 7 can be replaced by threading according to actual conditions.

[0050] The optical fiber 1 is fused to the other end of the second tube 8. By fusing the optical fiber 1 to the other end of the second tube 8, the connection mode of the light output part is more stable and resistant to high temperature, and the service life of the device is further improved.

[0051] The connector 7 is provided with two clamping platforms of different sizes. The light inlet portion can be clamped in machines with different ports by the two clamping platforms of different sizes.

[0052] Embodiment 2:

[0053] A method for preparing an external light guide beam for a medical hard mirror comprises the following steps

[0054] S1: hot-melting one end of the light-inlet portion and one end of the optical fiber, grinding the light-inlet portion and the optical fiber, and grinding the cross section of the optical fiber 1 into a regular hexagon;

[0055] S2: preparing anti-fluorescence interference liquid, and performing anti-fluorescence treatment on the optical fiber;

[0056] S3: Assemble the protection tube and install the metal spiral tube 2 into the glass fiber and silicone integrated tube 3;

[0057] S4: Assembling the light inlet and light outlet.

[0058] By adopting this method, one end of the light inlet part is hot-melted to one end of the optical fiber, so that the connection between the light inlet part and the optical fiber is more stable and can withstand the heat generated during light guidance, thereby improving the heat resistance and avoiding the separation of the light inlet part and the optical fiber due to excessive heat, thereby greatly improving its service life; and by grinding the light inlet part and the optical fiber, the cross section of the optical fiber is ground into a regular hexagon, so that the light transmittance of the device is greatly improved.

[0059] Assembling the light inlet and the light outlet comprises welding the first hardware combination piece 9 to one end of the metal spiral tube 2 , and welding the second hardware combination piece to the other end of the metal spiral tube 2 .

[0060] Specifically, the following steps are also included:

[0061] 1. Insert the optical head: 1. Cut the end of the optical fiber neatly, straighten it, and remove impurities. Fix it with a silicone tube about 150mm behind the end (pay attention to the appropriate tightness, and do not move or loosen);

[0062] 2. The light inlet port is smooth and flat without burrs;

[0063] 3. The optical fiber is still in a straight state after entering the light inlet, and the overall exposure of the sleeve is about 5mm. The optical fiber at the rear end of the sleeve is straight, without obvious crossover, arching or twisting;

[0064] 4. The alcohol used to clean the optical fiber needs to be replaced once a day. If the alcohol becomes turbid during use, it needs to be replaced in time.

[0065] 2. Hot-melt one end of the light inlet portion and one end of the optical fiber: 1. Apply a release agent to both the stamping jig and the tube opening of the first tube 4, but do not apply it to the optical fiber;

[0066] 2. The stamping jig must be positioned properly;

[0067] 3. The optical fiber is fixed in a vertical position, and the optical fiber is exposed about 5mm from the tube mouth.

[0068] 3. Grinding of the light-inlet part: 1. The surface of the first tube 4 and the tube mouth of the optical fiber therein is bright and not yellowish, and there is no obvious color difference compared with the sample, which is OK, and the whole batch is consistent;

[0069] 2. After grinding, the end surface is flat and bright under a 10x magnifying glass, without obvious black spots, pits, cracks, etc., and the broken wire rate is ≤1%. All optical fiber filaments are ground out under a 40x magnifying glass;

[0070] 3. After grinding, use a special measuring instrument to measure the size within the range of (62+0 / -0.3mm).

[0071] 4. Prepare anti-fluorescence interference liquid, and perform anti-fluorescence treatment on the optical fiber: 1. Determine the full length of an optical fiber bundle (including the light-inlet part) and cut it: A. 3000 model is 3150±50mm B. 5000 model is 5150±50mm

[0072] 2. Distinguishing between anti-fluorescence treatment: If the model number ends with "AR", the optical fiber needs anti-fluorescence treatment; if "R" is used, it does not need to be treated;

[0073] 3. Anti-fluorescence interference solution mixing ratio: 3000mL alcohol + 12g black ink + 1.2g talcum powder, stir well;

[0074] 4. Anti-fluorescence treatment of optical fiber bundle: leave about 200mm of the optical fiber bundle at the end of the light inlet head unchanged, and the part about 2.5m behind needs anti-fluorescence treatment, and the treated section of optical fiber needs to be evenly coated;

[0075] 5. Place in a dry room to air dry for more than 12 hours until completely dry.

[0076] V. Assemble the protective tube: 1. Before and after assembling the metal spiral tube and the glass fiber and silicone integrated tube, confirm that the outer skin has no damage, bulging, twisting or other appearance problems;

[0077] 2. Length of glass fiber and silicone integrated tube: A. 2880±5mm for 3000 model B. 4880±5mm for 5000 model, the ports should be flush;

[0078] 3. If the metal spiral tube shrinks inward after cutting, the shrinkage length should be ≤50mm.

[0079] 6. Assemble the light inlet and light outlet parts:

[0080] 1. Pull out the metal spiral tube: A. Pull out the metal spiral tube of model 480 ≤23mm (about 7 springs) B. Pull out the metal spiral tube of model 350 ≤20mm (about 7 springs), trim a small half circle, grind the outer wall of the four circles behind the two circles of the metal spiral tube end, blow it clean with an air gun, check that there is no deformation of the spring end, and rotate the first hardware joint to the bottom for welding;

[0081] 2. The first hardware combination 9 is fixed to one end of the metal spiral tube 2 by welding process without falling off. After welding, the inner hole is checked with a plug gauge to ensure that it can pass through the welding position smoothly: A. 480 model is checked with a φ5.69mm plug gauge, and B. 350 model is checked with a φ3.5mm plug gauge;

[0082] 3. After applying 30CL glue on the metal spiral tube and the glass fiber and silicone integrated tube, insert them into the first hardware combination 9 and the second hardware combination so that the blue tube reaches the first step of the hardware combination and stops (be careful not to push it onto the step). Observe that the blue tube port fits tightly against the step without obvious gaps and glue;

[0083] 4. The threads of the first hardware combination 9 and the second hardware combination are clean and free of glue and grease. After being left to stand for ≥1h, bake at 65±10℃ for ≥1h. After baking, push the silicone sleeve to the second step of the inlet and outlet light combination component;

[0084] 5. Evenly apply snow oil on the inner wall of the first hardware combination part 9 and the second hardware combination part for a length of about 50 mm.

[0085] 7. Insert the second tube and apply glue: 1. Treat the second tube with a treatment agent and let it stand for 1 hour before use;

[0086] 2. Use RT154 glue + 2% copper powder, put it into a blender and mix it, and use it after pre-hardening;

[0087] 3. The threads of the first hardware combination 9 and the second hardware combination must be screwed to the bottom;

[0088] 4. Punch through the end of the optical fiber bundle by about 25mm. After the second tube is pulled into place, the optical fiber is exposed by 12±2mm. Bake immediately: 120±10℃≥1H+150±10℃≥0.5H.

[0089] 8. Grinding of light-emitting part and polishing of both end surfaces: 1. The optical fiber breakage rate is less than 2%;

[0090] 2. The end face of the second tube needs to be ground flat and bright, and the end face and state of the optical fiber must be fully ground out;

[0091] 3. Light head size range: 16+0 / -0.3mm;

[0092] 4. The casing surface should not have scratches or bruises;

[0093] 5. Both end faces of the product are polished and bright.

[0094] Specifically, the external light guide beam for a medical hard mirror provided by the present invention comprises a protective tube, a light inlet portion, and a light outlet portion; the protective tube, the light inlet portion, and the light outlet portion are all provided with an optical fiber 1, and the optical fiber 1 is a continuous optical fiber 1; the light inlet portion is provided at one end of the protective tube, and the light outlet portion is provided at the other end of the protective tube; one end of the optical fiber 1 is fused with one end of the light inlet portion. The cross-section of the optical fiber 1 is a hexagon. On the one hand, the instability and high temperature resistance of glue bonding are abandoned, and on the other hand, the optical fiber 1 is melted into a regular hexagon, so that its light transmittance performance is greatly improved (by 30%-50%), and based on the optimization and stabilization of its structure and process, its service life is also significantly improved.

[0095] The device is used in the thoracic and abdominal endoscope image processor system, and is used in conjunction with an electronic endoscope and a display to process the images collected by the electronic endoscope more clearly and transmit them to the display, providing accurate and effective basis for doctors' diagnosis and treatment.

[0096] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A medical hard mirror with an external light guide, characterized in that: It includes a protection tube, a light inlet part and a light outlet part; The protective tube, the light inlet portion, and the light outlet portion are all provided with optical fiber filaments (1), and the optical fiber filaments (1) are continuous optical fiber filaments (1); The light inlet portion is arranged at one end of the protection tube, and the light outlet portion is arranged at the other end of the protection tube; One end of the optical fiber (1) is fused to one end of the light inlet portion.

2. The external light guide for medical hard mirror according to claim 1, characterized in that: The cross section of the optical fiber (1) is hexagonal.

3. The external light guide for medical hard mirror according to claim 2, characterized in that: The protective tube comprises a metal spiral tube (2) and a glass fiber and silicone integrated tube (3); the metal spiral tube (2) is arranged inside the glass fiber and silicone integrated tube (3), and the optical fiber (1) is arranged inside the metal spiral tube (2).

4. The external light guide for medical hard mirror according to claim 3, characterized in that: The light inlet portion comprises a first tube (4), a conversion head (5), and a handle (6); one end of the first tube (4) is threadedly connected to one end of the conversion head (5); one end of the handle (6) is connected to the other end of the conversion head (5); a first hardware connector (9) is clamped inside the other end of the handle (6); and the first hardware connector (9) is welded to one end of the metal spiral tube (2).

5. The external light guide for medical hard mirror according to claim 4, characterized in that: The optical fiber (1) is fused to the other end of the first tube (4).

6. A medical hard mirror external light guide according to any one of claims 1-5, characterized in that: The light emitting portion comprises a connecting piece (7) and a second tube (8); a second hardware connector is clamped in one end of the connecting piece (7); the second hardware connector is welded to the other end of the metal spiral tube (2); and the other end of the connecting piece (7) is threadedly connected to one end of the second tube (8).

7. The external light guide for medical hard mirror according to claim 6, characterized in that: The optical fiber (1) is fused to the other end of the second tube (8).

8. The external light guide for medical hard mirror according to claim 7, characterized in that: The connecting piece (7) is provided with two clamping platforms of different sizes.

9. A method for preparing an external light guide beam for a medical hard mirror as claimed in claim 6, characterized in that: The following steps are involved: S1: hot-melting one end of the light inlet portion and one end of the optical fiber (1), grinding the light inlet portion and the optical fiber (1), and grinding the cross section of the optical fiber (1) into a regular hexagon; S2: preparing an anti-fluorescence interference liquid, and subjecting the optical fiber (1) to an anti-fluorescence treatment; S3: Assembling the protection tube, installing the metal spiral tube (2) into the glass fiber and silicone integrated tube (3); S4: Assembling the light inlet and light outlet.

10. The method for preparing an external light guide beam for a medical hard mirror according to claim 9, characterized in that: S4 also includes welding the first hardware combination piece (9) to one end of the metal spiral tube (2), and welding the second hardware combination piece to the other end of the metal spiral tube (2).

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