A multi-dimensional optical fiber illumination system and method for surgery
By designing a multi-dimensional optical fiber lighting system in surgical lighting equipment, using single-sided side optical fiber and red light cold light source, the problems of insufficient light penetration and fixed light source of existing surgical lighting equipment are solved, achieving more efficient The lighting effect and safety are suitable for a variety of human surgery.
Patent Information
- Application Number
- CN202410456184.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2044-04-16
AI Technical Summary
The existing surgical lighting equipment has insufficient light penetration, low lighting effect, fixed light source, inability to move freely, and the lighting effects in different parts vary greatly during the operation, which increases the risk of surgery.
A fiber lighting system for surgery that includes optical fiber connector module, optical fiber module and protection module is designed. By setting a single side optical fiber in the optical fiber and defining the cutting angle of the cutout, the red light cold light source and Strobe function improves light concentration and penetration and achieves better surgical assisted lighting.
It improves the light concentration and penetration of surgical lighting, enhances the safety of lighting, reduces the risk of surgery, and is suitable for various human surgeries.
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Figure CN118236178B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical devices for assisting human surgery, and in particular to a multi-dimensional optical fiber lighting system and method for surgery. Background Art
[0002] The surgical lighting lamps in current surgical instruments are mainly divided into shadowless lamps and surgical auxiliary lighting lamps (see the "Medical Equipment Classification Catalog"). In addition, there are endoscopes and corresponding cold light sources for endoscopes, which also have certain lighting effects.
[0003] Shadowless lamps are currently the main surgical lighting tools. Generally, during surgery, light is transmitted to the irradiated area in a non-contact manner. This lighting method mainly allows doctors to observe the surgical site through light reflected by body tissues. However, because body tissues absorb light, the light reflected from the surface is much stronger than the light reflected from the inside of the tissues. Doctors can only observe the surface during surgery. As for the situation inside the body tissues, they can only judge based on experience. It is difficult to observe before the tissues are cut open by a scalpel. This undoubtedly increases the risk of surgery. If the doctor makes a misjudgment during surgery and damages normal tissues, a medical accident will occur, which will not only cause damage to the patient and endanger the patient's life safety, but also put pressure on the patient's family and the national finances for subsequent treatment.
[0004] At the same time, current surgeries are increasingly tending to use endoscopes. Generally, minimally invasive surgeries are performed from human cavities or minimally invasive openings, using multiple endoscopic surgical instruments to collaborate. Endoscopic surgery has the advantages of less trauma, faster recovery, and fewer surgical complications. However, in actual surgery, the lighting effect of endoscopic surgery is lower than that of conventional surgery. Because the lighting source of the endoscope is generally a single light source, it does not have the shadowless effect of a shadowless lamp; and the endoscope can only penetrate the human body from a specific part, the position of the light source and the direction of the light are limited. Generally, there is only one or more fixed light sources for one operation, and it cannot move freely; in addition, the intensity of the light source needs to be precisely controlled. When the intensity of the light source is too strong, it will generate heat and cause tissue burns. The lighting effects of different parts and angles vary greatly, and there will be more serious color differences when imaging. These deficiencies in lighting will lead to increased surgical risks. Summary of the invention
[0005] In view of this, the purpose of the present invention is to provide a multi-dimensional fiber optic lighting system and method for surgery, so as to improve the light concentration and light penetration of surgical lighting equipment, so that doctors can play a good auxiliary lighting role when performing surgery, and improve the safety of lighting, and are widely used in various human surgeries.
[0006] The first aspect of the present invention discloses a multi-dimensional fiber optic lighting system for surgical use, which includes a fiber optic connector module, a fiber optic module, and a protection module;
[0007] Among them, the fiber optic connector module is used to connect the fiber optic module and the protection module;
[0008] The fiber optic module includes a light guiding fiber and a single-sided side-emitting fiber. Among them, the light guiding fiber is arranged close to the fiber optic connector module and is used to conduct light energy;
[0009] The single-sided side-emitting fiber is arranged far from the fiber optic connector module. The single-sided side-emitting fiber is also provided with a fiber optic incision, and the fiber optic incision is used to make the axial light totally reflected. The included angle a between the section plane of the fiber optic incision and the fiber optic axis satisfies 0.5*arcsin(1 / n) < a < arcsin(1 / n), where n is the refractive index of the single-sided side-emitting fiber;
[0010] The protection module is used to wrap the fiber optic module.
[0011] Further, the fiber optic module further includes a light source output fiber, and the light source output fiber is used to conduct the light energy of the light source to the light guiding fiber.
[0012] Further, the number of incisions of the single-sided side-emitting fiber ≥ 3, and the incision depth of the single-sided side-emitting fiber farther from the light guiding fiber is greater.
[0013] Further, the diameter of the light guiding fiber is not greater than the diameter of the single-sided side-emitting fiber, and the refractive index of the light guiding fiber is not greater than the refractive index of the single-sided side-emitting fiber.
[0014] Further, the protection module includes a protective sleeve, and the protective sleeve is made of a transparent material that complies with the series of standards of GB / T 16886 "Biological Evaluation of Medical Devices".
[0015] Further, the protection module further includes a light shielding sub-module. The protection module wrapping the fiber optic module specifically includes:
[0016] The light shielding sub-module is used to wrap the light guiding fiber. After the light shielding sub-module wraps the light guiding fiber, the protective sleeve completely wraps the single-sided side-emitting fiber and partially wraps the light guiding fiber;
[0017] The fiber optic connector module connecting the fiber optic module and the protection module specifically is:
[0018] The fiber optic connector module connects the light source output fiber and the protective sleeve;
[0019] The diameter of the optical fiber connector module end used for connecting the protective cover matches the diameter of the protective cover and is larger than the diameter of the optical fiber connector module end used for connecting the light emitting optical fiber of the light source.
[0020] Furthermore, the light source of the light-emitting optical fiber includes a red cold light source.
[0021] Furthermore, the optical fiber lighting system further comprises a strobe module, wherein the strobe module comprises a strobe switch, and the strobe switch is used to make the light source emit strobe light.
[0022] The second aspect of the present invention discloses a multi-dimensional optical fiber illumination method for surgery, which is implemented based on the optical fiber illumination system disclosed in the first aspect of the present invention, wherein the method comprises:
[0023] Turn on the lighting switch and strobe switch of the fiber optic lighting system to determine whether the lighting function and strobe function of the fiber optic lighting system are normal. When it is determined that the lighting function and strobe function of the fiber optic lighting system are normal, place the unilateral side light-emitting optical fiber together with the protective cover into the surgical object, with the light-emitting surface facing the surgical site.
[0024] Compared with the prior art, the present invention has the following beneficial effects:
[0025] The present invention designs a multi-dimensional fiber optic lighting system for surgery including a fiber optic connector module, a fiber optic module and a protection module. By setting a single-sided side light-emitting fiber including an incision in the fiber optic module and limiting the cut angle of the incision, the light energy passes through the light source light-emitting fiber, is transferred to the light-guiding fiber through the fiber optic connector, and then transferred to the single-sided side light-emitting fiber. Most of the light energy can be retained and concentrated on the single side and end face of the single-sided side light-emitting fiber for emission, playing a good role in surgical auxiliary lighting. The fiber optic lighting system designed by the present invention is generally placed in the vagina, large intestine, internal organs or lower part of the tissue that is invisible to the naked eye. The light source can penetrate the body tissue and mark the position and structure of the body tissue. By using a cold light source with a strobe function, it can help doctors observe and identify body tissues, prevent accidental injury to normal tissues during surgery, and play a role in lighting and warning. The present invention has concentrated light, strong penetration, good lighting effect, and high safety, and can be widely used in various human surgeries. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:
[0027] Figure 1 It is a schematic structural diagram of a multi-dimensional optical fiber illumination system for surgery disclosed in an embodiment of the present invention;
[0028] Figure 2 Schematic diagram of the light path of a multi-dimensional fiber optic lighting system for surgery disclosed in an embodiment of the present invention;
[0029] Figure 3 Schematic diagram of the structure of the fiber optic connector module of a multi-dimensional fiber optic lighting system for surgery disclosed in an embodiment of the present invention;
[0030] Figure 4 Schematic diagram of the simulated light output situation of a multi-dimensional fiber optic lighting system for surgery disclosed in another embodiment of the present invention;
[0031] Figure 5 Schematic diagram of the product assembly effect of a multi-dimensional fiber optic lighting system for surgery disclosed in another embodiment of the present invention;
[0032] Figure 6 Schematic diagram of the product light output effect of a multi-dimensional fiber optic lighting system for surgery disclosed in another embodiment of the present invention;
[0033] Figure 7 Schematic diagram of the light output effect of a multi-dimensional fiber optic lighting system for surgery disclosed in another embodiment of the present invention when placed on the pig intestine part. Detailed implementation manners
[0034] In order to enable those skilled in the art to better understand the solution of the present invention, 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0035] Embodiment 1
[0036] An embodiment of the present invention discloses a multi-dimensional fiber optic lighting system for surgery, which includes a fiber optic connector module, a fiber optic module, and a protection module.
[0037] Among them, the fiber optic connector module is used to connect the fiber optic module and the protection module.
[0038] The fiber optic module includes a light guiding fiber and a single-sided side-emitting fiber. Among them, the light guiding fiber is arranged close to the fiber optic connector module and is used for conducting light energy.
[0039] The single-sided side-emitting fiber is arranged far from the fiber optic connector module. The single-sided side-emitting fiber is also provided with a fiber optic incision, and the fiber optic incision is used to make total internal reflection with the light in the fiber axis. The included angle a between the section plane of the fiber optic incision and the fiber axis satisfies 0.5*arcsin(1 / n) < a < arcsin(1 / n), where n is the refractive index of the single-sided side-emitting fiber.
[0040] The optical fiber module also includes an optical fiber for emitting light from the light source, which is used to transmit the light energy of the light source to the light-guiding optical fiber.
[0041] Specifically, the single-side side-emitting optical fiber in the embodiment of the present invention is an optical fiber that emits light from only one side. Its essence is to set a cut that causes the axial light to be totally reflected on the basis of an ordinary light-guiding optical fiber, and the set cut is located on the same side of the single-side side-emitting optical fiber. The single-side side-emitting optical fiber in this embodiment has a single layer or multiple layers of optical fiber layers, and the material includes soft or hard.
[0042] Furthermore, in the embodiment of the present invention, the protection module of the light illumination system is used to wrap the optical fiber module, wherein the protection module includes a protective cover. Since the protective cover in the embodiment of the present invention is in direct contact with human tissue, the optical fiber illumination system can be buried deep inside the human tissue, allowing light to be transmitted from the inside of the tissue, providing doctors with unique visual perception and lighting effects. Therefore, in order to ensure safety, the protective cover is made of transparent materials that comply with the GB / T 16886 "Biological Evaluation of Medical Devices" series of standards.
[0043] Figure 1 FIG. 1 is a schematic diagram of the structure of a fiber optic lighting system according to a preferred embodiment of the present invention. Figure 1 As shown, in this embodiment, the light illumination system of the present invention includes a light connector module, a light guide fiber, a protective cover, and a single-side side light emitting fiber. One end of the fiber connector module is connected to the protective cover, and the protective cover covers part of the light guide fiber and covers all of the single-side side light emitting fibers.
[0044] The single-sided side light-emitting optical fiber in the embodiment of the present invention is provided with an incision, and one incision will form two facets. The facet close to the light-guiding optical fiber side will reflect the light from the source (in the embodiment of the present invention, the facets referred to below all refer to the facets close to the light-guiding optical fiber side). In order to ensure that as much light as possible is emitted from the light-emitting side of the single-sided side light-emitting optical fiber, it is necessary for the light to be totally reflected when passing through the intersection with the facet close to the light-guiding optical fiber side, and not totally reflected when passing through the intersection with the light-emitting side of the single-sided side light-emitting optical fiber. The incident angle of the light when it is transmitted from the light-guiding optical fiber to the facet of the incision of the single-sided side light-emitting optical fiber has an angle relationship with the angle between the facet and the axis of the optical fiber, which adds up to 90°. Based on this, the embodiment of the present invention achieves the above-mentioned effect by limiting the size of the angle between the facet and the axis of the optical fiber.
[0045] Figure 2 This is a schematic diagram of the light direction of an embodiment of the present invention, referring to Figure 2 As shown, specifically, the specific reasoning process of the angle that the cut surface and the optical fiber axis need to satisfy is as follows:
[0046] Let the angle between the cutting plane and the optical fiber axis be \(a\). When the axial light is reflected on the cutting plane, the incident angle \(b = 90^{\circ}-a\), the angle \(c\) between the reflected light and the axis is \(c = 180 - 2b=2a\), and the incident angle \(d\) between the reflected light and the optical fiber surface is \(d = 90^{\circ}-c = 90 - 2a\). Let the refractive index of the optical fiber be \(n\). According to the total reflection condition in geometric optics, total reflection of the axial light occurs at point \(M\), then \(\sin(b)>1 / n\), \(\cos(a)>1 / n\), \(a < \arccos(1 / n)\); after total reflection at point \(M\), total reflection does not occur at point \(N\), then \(\sin(d)<1 / n\), \(\cos(2a)<1 / n\), \(a>0.5\arccos(1 / n)\). Combining the two conditions, then \(0.5\arcsin(1 / n)<a<\arcsin(1 / n)\).
[0047] In the embodiment of the present invention, by setting the angle \(a\) between the cutting plane and the optical fiber axis to satisfy the angular relationship of \(0.5\arcsin(1 / n)<a<\arcsin(1 / n)\), most of the light energy of the axial light originally along the optical fiber axis is emitted from the light-emitting side of the single-side side-emitting optical fiber, so as to improve the concentration and penetration of the light at the light-emitting part of the optical fiber illumination system of the present invention.
[0048] Furthermore, in the embodiment of the present invention, the diameter of the light guide optical fiber is set not to be greater than the diameter of the single-side side-emitting optical fiber, and the refractive index of the light guide optical fiber is not greater than the refractive index of the single-side side-emitting optical fiber.
[0049] Figure 3 It is a schematic structural diagram of an optical fiber connector module according to another preferred embodiment of the embodiment of the present invention. Refer to Figure 3 As shown, in this embodiment, the other end of the optical fiber connector module is connected to the light source output optical fiber. The light source output optical fiber is linearly butted with the light guide optical fiber. The light source output optical fiber, the light guide optical fiber, and the protective sleeve are fixed through the optical fiber connector module. That is to say, the optical fiber connector module is a structure connecting the light source output optical fiber and the light guide optical fiber, and at the same time, it also has the function of fixing the light guide optical fiber and the protective sleeve.
[0050] Furthermore, the diameter of the end of the optical fiber connector module for connecting the protective sleeve matches the diameter of the protective sleeve, the diameter of the end of the optical fiber connector module for connecting the light source output optical fiber matches the diameter of the light source output optical fiber, and the diameter of the end of the optical fiber connector module for connecting the protective sleeve is greater than the diameter of the end of the optical fiber connector module for connecting the light source output optical fiber.
[0051] Furthermore, as a preferred embodiment of the present invention, the number of cuts of the single-side side light-emitting optical fiber is set to be ≥ 3, and the cut depth of the single-side side light-emitting optical fiber farther away from the light-guiding optical fiber is greater. Cuts of different depths will reflect light from different parts of the optical fiber, thereby achieving a consistent lighting effect at the light-emitting part of the optical fiber side.
[0052] Furthermore, the protection module in the embodiment of the present invention is also provided with a light-shielding submodule, which is used to wrap the light-guiding optical fiber. After the light-shielding submodule wraps the light-guiding optical fiber, the protective cover is used to completely wrap the single-side side light-emitting optical fiber and partially wrap the light-guiding optical fiber.
[0053] In an embodiment of the present invention, based on the light source being transmitted from the light source light emitting fiber to the light guiding fiber, and then transmitted to the single-sided side light emitting fiber through the light guiding fiber, in order to ensure the concentration of the light emitting point of the single-sided side light emitting fiber and avoid the loss and interference of light energy at other positions, an embodiment of the present invention arranges a light-shielding sub-module at the light guiding fiber, and effectively shields the light passing through the light guiding fiber through the light-shielding sub-module, and transmits as much light energy as possible to the single-sided side light emitting fiber for light output. At the same time, this arrangement can also improve the light concentration at the light output point, thereby reducing the loss of light energy and avoiding the interference of light output at other positions on the target irradiation object.
[0054] In addition, in the prior art, light energy is usually accompanied by heat energy. When performing auxiliary irradiation on internal tissues of the human body, it is necessary to additionally control the heat energy emitted by the auxiliary lighting equipment to avoid burns to the human tissues.
[0055] In the embodiment of the present invention, the light source of the light emitting optical fiber includes a red cold light source. Furthermore, the optical fiber lighting system also includes a strobe module, the strobe module includes a strobe switch, and the strobe switch is used to make the light source emit strobe light.
[0056] Specifically, cold light sources are generally designed with LED light sources. LED is an incoherent light source with a narrow spectral bandwidth and less light in the ultraviolet and infrared bands. It is not easy to generate heat and cause burns when lighting. The strobe function and strobe switch can make the light emitted by the fiber optic lighting system during surgery in the human body different from the lighting effects of other surgical lighting lamps, making it easier for doctors to identify the illuminated area.
[0057] Embodiment 2
[0058] This embodiment is an experimental embodiment using the fiber optic lighting system of the present invention.
[0059] In this embodiment, the single-sided side-emitting optical fiber and the light guiding optical fiber are integrated. The light guiding optical fiber uses a flexible polymethyl methacrylate optical fiber with a fiber diameter of 10 mm. A series of incisions with gradually decreasing depths are processed at the fiber end to serve as the single-sided side-emitting optical fiber. The angle between the cut surface and the optical axis is 45° (when the refractive index of the optical fiber is about 1.49, the condition that a needs to satisfy is 23.9° < a < 47.8°). The incision depths are 2.25 mm, 3.00 mm, 3.75 mm, 4.10 mm, and 5.00 mm respectively. After processing, the length of the single-sided side-emitting optical fiber part is 80 mm, and the length of the light guiding optical fiber part is 200 mm.
[0060] The light emission situation of the single-sided side-emitting optical fiber is simulated, and a simulation program is written using MATLAB. The results are as Figure 4 shown. Figure 4 -a is the simulation result. The middle part is the single-sided side-emitting optical fiber, the dot particles are moving light particles, and the circles are the light particles falling on the light screen. It can be seen that after passing through the single-sided side-emitting optical fiber, the light particles mainly fall on the bottom and the end face. The designed landing point of this embodiment is the bottom, and the light particles at the bottom are observed and counted. As Figure 4 shown in -b, in the simulation result, the proportion of the light particles at the bottom in the total light particles is about 52.8%, and the distribution is relatively concentrated. The number of light particles is counted, and the results are as Figure 4 shown in -c. Observing the statistical chart in the lower right, the light intensity distribution is relatively uniform; through calculation, under the current incision depth, the coefficient of variation of brightness CV = standard deviation / average value = 8.4% at different parts of the bottom.
[0061] To ensure the firm connection of the fiber optic connector, in this embodiment, the fiber optic connector is made of ABS plastic and is matched with the diameters of the light guiding optical fiber and the protective sleeve, and is fastened with an M4 bolt. The fiber optic connector is used to directly fix the three parts of the light source output optical fiber, the light guiding optical fiber, and the protective sleeve, and the light guiding optical fiber and the light source output optical fiber are linearly butted.
[0062] In this embodiment, the protective sleeve is made of medical PVC material and is integrally formed by mold opening; the outer diameter is 13 mm and the inner diameter is 12 mm.
[0063] The cold light source used is an LED red light source with a central wavelength of about 620 nm and an output light energy of about 0.5 W. The light source output optical fiber matched with the cold light source is a medical endoscope cold light source optical fiber with a length of 3 m.
[0064] During assembly, a layer of shading material is wrapped around the outer surface of the light-guiding optical fiber to prevent light leakage from the light-guiding optical fiber and affect the doctor's surgery. When in use, the unilateral side light-emitting optical fiber will be placed in the internal tissue of the human body. After penetrating the tissue part of the human body for surgery, the brightness is limited. The light-guiding optical fiber is outside the human body, and its leaked light will directly irradiate the doctor. In addition, since the light source has a stroboscopic function, after the stroboscopic function is turned on, the light of the light-guiding optical fiber part may cause light pollution to the doctor due to stroboscopic. Therefore, shading material is used here for isolation.
[0065] The above structure is assembled, and the effect after assembly is as follows Figure 5 shown.
[0066] The results of this embodiment were tested in vitro, and the lighting effect was as follows Figure 6 As shown. By observing the experimental data, the lighting effect of this embodiment is close to the simulation result. The red light is mainly emitted from the side of the single-side side light-emitting optical fiber, and the light leakage from other sides is less, and the light leakage from the top is more, which is in line with the simulation expectation. At the same time, the side lighting effect is close to uniform, and the lighting intensity distribution is close to the simulation result.
[0067] The intended use scenario of this embodiment is to be placed in the human rectum for auxiliary lighting. During the test, considering that the human rectum is difficult to test directly, a double-layer pig colon was used for testing to observe the lighting effect and measure relevant parameters to determine the performance of this embodiment. Figure 7 As shown. Through observation, in this embodiment, the illumination can penetrate two layers of pig large intestine, the illumination effect is obvious, less light leaks outside the illumination area, the light energy is concentrated and evenly distributed, and it has a single-sided illumination effect. To test the illumination burn problem, at maximum power, the illumination is continuously performed for 1 hour, and the temperature is tested using a thermal imager. The temperature of the illuminated part is about 4 degrees Celsius higher than that of other parts, and there is no burn problem.
[0068] Embodiment 3
[0069] The second aspect of the present invention discloses a multi-dimensional optical fiber illumination method for surgery, which is implemented based on the optical fiber illumination system disclosed in the first aspect of the present invention, wherein the method comprises:
[0070] Turn on the lighting switch and strobe switch of the fiber optic lighting system to determine whether the lighting function and strobe function of the fiber optic lighting system are normal. When it is determined that the lighting function and strobe function of the fiber optic lighting system are normal, place the unilateral side light-emitting optical fiber together with the protective cover into the surgical object, with the light-emitting surface facing the surgical site.
[0071] Specifically, the optical fiber lighting system of the present invention is provided with an illumination switch and a strobe switch. Before use, the functions of the illumination switch and the strobe switch can be tested as needed. For example, when the strobe function is not required in this operation, only the functionality of the illumination switch can be tested. After testing that the optical fiber lighting system for surgery is functioning normally, it is placed inside the corresponding human tissue according to the needs of the operation to realize the illumination function.
[0072] When in use, the unilateral side light-emitting optical fiber together with the protective cover is placed inside the human body, with the light-emitting surface facing the surgical site. The light energy is transferred from the light source through the light-emitting optical fiber of the light source and the optical fiber connector to the light-guiding optical fiber, and then transferred to the unilateral side light-emitting optical fiber. It is emitted from the side and end faces of the unilateral side light-emitting optical fiber, passes through the protective cover, and the protective cover contacts the human tissue. The light is transmitted through the human tissue, illuminating the internal situation of the human tissue and being recognized by the doctor, thereby serving the purpose of surgical auxiliary lighting and surgical early warning.
[0073] For example, when a doctor is performing surgery on the rectum, a single-sided side-emitting optical fiber together with a protective cover is placed in the human rectum, with the light-emitting surface facing the front of the human body, illuminating the area between the rectum and the human urinary and reproductive systems, marking the rectum for the doctor, assisting in observing the conditions of the urinary and reproductive systems, and assisting in the surgery; providing a warning for the rectum through lighting to prevent injury to the rectum during surgery, resulting in surgical accidents such as intestinal fistulas.
[0074] Finally, it should be noted that the multi-dimensional fiber optic lighting system and method for surgery disclosed in the embodiments of the present invention only disclose the preferred embodiments of the present invention, which are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A multi-dimensional optical fiber illumination system for surgery, characterized in that: The fiber optic lighting system includes a fiber optic connector module, a fiber optic module, and a protection module; among them, the fiber optic connector module is used to connect the fiber optic module and the protection module; the fiber optic module includes a light guiding fiber and a single-sided side-emitting fiber. Among them, the light guiding fiber is arranged near the fiber optic connector module and is used to conduct light energy; the single-sided side-emitting fiber is arranged away from the fiber optic connector module. The single-sided side-emitting fiber is also provided with a fiber notch. The fiber notch is used to make the axial light totally reflect. The included angle a between the section plane of the fiber notch and the fiber axis satisfies 0.5*arcsin(1 / n) < a < arcsin(1 / n), where n is the refractive index of the single-sided side-emitting fiber; the protection module is used to wrap the fiber optic module; the number of notches of the single-sided side-emitting fiber is ≥ 3, and the notch depth of the single-sided side-emitting fiber farther away from the light guiding fiber is greater; the fiber optic module further includes a light source output fiber, and the light source output fiber is used to conduct the light energy of the light source to the light guiding fiber; the protection module includes a protective sleeve; the connection of the fiber optic connector module to the fiber optic module and the protection module is specifically as follows: The other end of the fiber optic connector module is connected to the light source output fiber. The light source output fiber is linearly butted with the light guiding fiber. The light source output fiber, the light guiding fiber, and the protective sleeve are fixed through the fiber optic connector module; among them, the diameter of the end of the fiber optic connector module for connecting the protective sleeve matches the diameter of the protective sleeve and is larger than the diameter of the end of the fiber optic connector module for connecting the light source output fiber; the protection module further includes a light shielding sub-module; the wrapping of the fiber optic module by the protection module specifically includes: the light shielding sub-module is used to wrap the light guiding fiber. After the light shielding sub-module wraps the light guiding fiber, the protective sleeve completely wraps the single-sided side-emitting fiber and partially wraps the light guiding fiber.
2. The multi-dimensional optical fiber illumination system for surgery according to claim 1, characterized in that: the diameter of the light guiding fiber is not greater than the diameter of the single-sided side-emitting fiber, and the refractive index of the light guiding fiber is not greater than the refractive index of the single-sided side-emitting fiber.
3. The multi-dimensional optical fiber illumination system for surgery according to claim 2, characterized in that: The protective sleeve is made of a transparent material that complies with the GB / T 16886 "Biological Evaluation of Medical Devices" series of standards.
4. The multi-dimensional optical fiber illumination system for surgery according to claim 3, characterized in that: The light source of the light source output fiber includes a red light cold light source.
5. The multi-dimensional optical fiber illumination system for surgery according to any one of claims 1 to 4, characterized in that: The fiber optic lighting system further includes a stroboscopic module. The stroboscopic module includes a stroboscopic switch, and the stroboscopic switch is used to make the light source emit stroboscopic light.
Citation Information
Patent Citations
Auxiliary illumination early warning optical fiber for operation in human body
CN222068341U
Optical fiber conduit structure
TWM565802U
Side lighting optical conduit
US5987199A
