WO2019241996A1 - Lampe chirurgicale - Google Patents

Lampe chirurgicale Download PDF

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Publication number
WO2019241996A1
WO2019241996A1 PCT/CN2018/092381 CN2018092381W WO2019241996A1 WO 2019241996 A1 WO2019241996 A1 WO 2019241996A1 CN 2018092381 W CN2018092381 W CN 2018092381W WO 2019241996 A1 WO2019241996 A1 WO 2019241996A1
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WO
WIPO (PCT)
Prior art keywords
light source
brightness
spot
surgical
lighting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/092381
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English (en)
Chinese (zh)
Inventor
王磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Mindray Bio Medical Electronics Co Ltd
Original Assignee
Nanjing Mindray Bio Medical Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Mindray Bio Medical Electronics Co Ltd filed Critical Nanjing Mindray Bio Medical Electronics Co Ltd
Priority to PCT/CN2018/092381 priority Critical patent/WO2019241996A1/fr
Priority to CN201880001698.5A priority patent/CN109073177B/zh
Priority to EP18923662.3A priority patent/EP3812649A4/fr
Publication of WO2019241996A1 publication Critical patent/WO2019241996A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0435—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by remote control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/20—Lighting for medical use
    • F21W2131/205—Lighting for medical use for operating theatres

Definitions

  • the invention relates to the technical field of medical equipment, and more particularly, to a surgical lamp.
  • Surgical shadowless lamp (surgical lamp for short) is an indispensable and commonly used equipment in the operating room. Doctors usually work under the surgical lamp for several hours or more during surgery. In order to get sufficient lighting to illuminate the area where the surgical field is located, the surgical lamp usually converges its light on the surgical field, and a single surgical lamp produces a high-illuminance light spot with a diameter of about 13-25 cm in the center of the light spot. The center of the light spot Illumination is as high as 40,000 lux to 160,000 lux.
  • LED surgical light sources Due to the high luminous efficiency and directivity of LED light sources, most LED surgical light products tend to achieve a central illuminance close to 160,000 lux. Since the higher the illumination, the better the user can perform the fine operation. Therefore, the LED surgical light is beneficial to the user's fine operation.
  • users Due to the high illuminance of the LED surgical lamp, users have poor viewing comfort during use, and prolonged use can easily cause eye fatigue.
  • An embodiment of the present invention provides a surgical lamp.
  • the surgical lamp can simultaneously ensure the illuminance required during surgery and user comfort.
  • a surgical lamp includes a lamp body, and at least one lighting unit is installed in the lamp body.
  • the lighting unit includes a light source and an optical system matched with the light source, and the lighting unit can form an illumination spot in an operation field area.
  • an auxiliary lighting area is formed in a range at least adjacent to the illumination light spot, and the illumination of the auxiliary lighting area is lower than that of the illumination light spot.
  • the illumination unit can not only form an illumination spot in the surgical field area, but also form an auxiliary illumination area in a range adjacent to the illumination spot to increase the illuminance of the adjacent area of the illumination spot, thereby reducing the surgical field illumination spot.
  • the contrast of illuminance inside and outside the area improves the uniformity of the illumination in the entire field of view, changes the average brightness or illuminance of the illumination in the field of view of the human eye, reduces glare, and improves the long-term observation comfort of the doctor.
  • FIG. 1 is a schematic structural diagram of a specific embodiment of a surgical lamp provided by the present invention.
  • FIG. 2 is a curve of illuminance of an illumination light spot with the first light source turned on separately;
  • FIG. 3 is a field illumination curve of the second light source being turned on separately;
  • FIG. 5 is a schematic structural diagram of another embodiment of a surgical lamp provided by the present invention.
  • Lamp body 1 suspension system 1-1, lamp head 1-2, handle 1-3, lighting unit 2, first lighting unit 2-1, second lighting unit 2-2, light 3, patient body 4, surgical field Area 5, lighting spot 6, opening angle 7 of the lighting spot relative to the eye, normal viewing angle opening angle 8, auxiliary lighting area 9, user 10.
  • the embodiment of the invention discloses a surgical lamp to reduce the contrast of illuminance within and outside the field of illumination spot of the surgical field, change the average brightness or illuminance of the illumination in the field of vision of the human eye, reduce glare, and thereby improve the long-term observation of doctors. Comfort.
  • Glare is a phenomenon of discomfort or reduced visual function due to uneven brightness distribution or excessive brightness in the field of vision of the human eye.
  • the generation of glare is mostly related to the brightness of the light source.
  • the brightness of the light source is too high, and the lower the brightness of the surrounding environment, the more significant the glare.
  • the method of judging the generation and discomfort of uncomfortable glare is generally calculated by formula.
  • the British glare index system adopted by CIBSE for a single glare source, can be calculated by the following formula:
  • G is the glare feeling
  • L S is the brightness of the glare light source in cd / m 2
  • ⁇ is the solid angle of the glare light source relative to the eye
  • L b is the average brightness of the visual field in cd / m 2
  • the Guth position index the position of the light source relative to the line of sight.
  • the G value is between 10-30, 10 means no glare is felt, and 30 means very uncomfortable glare.
  • the calculation and evaluation methods of subsequent research results are similar to the above formula in basic form.
  • the general concern is the glare of light that is directly irradiated to the human eye by the source of the surgical lamp. Therefore, when manufacturing a surgical lamp, the light should be focused on the field as much as possible, rather than scattered to the human eye to reduce glare. .
  • the illuminance of the spot light spot area is generally between 40,000 lux and 160,000 lux.
  • the illuminance of the area outside the surgical field light spot is generally several hundred lux to several thousand lux, and the illuminance decreases rapidly as it moves away from the light spot.
  • the surgical lamp provided in the present application can not only form an illumination spot in the surgical field area, but also form an auxiliary illumination area in a range adjacent to the illumination spot, thereby reducing the illuminance contrast within and outside the surgical field illumination spot area. , To improve the uniformity of lighting throughout the field of vision, thereby improving the long-term observation comfort of the doctor.
  • the surgical lamp provided in the present application includes a lamp body 1. Inside the lamp body 1, at least one lighting unit 2 is generally installed inside the lamp cap.
  • the lighting unit 2 includes a light source and an optical system.
  • the lamp body 1 is the main supporting structure of the surgical lamp. As shown in FIG. 1, the lamp body 1 includes a suspension system 1-1, a lamp head 1-2, and a handle 1-3. One end of the suspension system 1-1 is installed on the ceiling of the operating room, and the lamp head 1-2 is suspended on the other end.
  • the lamp head 1-2 generally includes a lamp head shell, a sterile handle 1-3 for a doctor to control, a control circuit for controlling the operating state of the surgical lamp, and a control interface for interacting with the doctor.
  • One or more lighting units 2 including a light source and an optical system thereof may be specifically installed in the base 1-2.
  • the light source of the lighting unit 2 cooperates with the optical system, and the light 3 emitted by the light source is collected, refracted, or reflected by the optical system to form a certain spatially distributed light beam, which specifically includes forming an illumination spot 6 in the surgical field area 5 and at least with the illumination spot 6
  • the auxiliary lighting area 9 is formed in the adjacent range, and the illuminance of the auxiliary lighting area 9 is lower than that of the illumination spot 6.
  • the illumination spot 6 refers to the ray 3 emitted by the light source after being collected, refracted, or reflected by the optical system to form a directional beam with a certain spatial distribution.
  • these directional beams generally have a small divergence angle and point below the surgical lamp.
  • the light 3 emerges from the lamp head of the surgical lamp and is focused on the surgical field area 5 on the surface of the patient's body 4 to form a higher-illumination illumination spot 6 to facilitate the operation of the doctor.
  • the boundary of the illumination spot 6 is clear, which is very advantageous when the doctor operates the surgical light to accurately position the illumination spot 6 on the surgical incision in the field.
  • the doctor can quickly overlap the illumination spot 6 with the surgical incision and illuminate the high-illuminance area when needed. Precisely operated parts, but because of the huge difference in illumination between the inside and outside of the illumination spot 6, it is easy to cause uncomfortable glare or an uncomfortable feeling during long-term observation.
  • the auxiliary lighting area 9 refers to the light emitted by the light source 3 after being collected, refracted, or reflected by the optical system to form a certain spatially distributed beam.
  • the beam has a large divergence angle and a more uniform spatial intensity distribution and is directed below the surgical lamp, thereby enabling surgery.
  • the lamp has the function of wide range lighting.
  • the average illuminance in the field of vision of the doctor is increased, and the difference in illuminance contrast between the illuminating spot 6 and the illuminating spot 6 in the surgical field area 5 is reduced.
  • Formula 1 under the condition that other conditions remain unchanged, increasing the average illuminance in the doctor's field of vision can improve the glare feeling, thereby improving the user 10 experience of the surgical lamp.
  • the auxiliary lighting area 9 is formed in a range at least adjacent to the illumination light spot 6, that is, the auxiliary lighting area 9 includes an area at least adjacent to the illumination light spot 6, and the adjacent here and below refers to the auxiliary lighting
  • the area 9 and the lighting spot 6 need only be adjacent to each other. Taking the lighting spot 6 as a circular spot, for example, the auxiliary lighting area 9 can be tangent to the lighting spot 6 and the illumination contrast on both sides of the cut point is reduced to reduce human eyes. Observe the induced visual fatigue in both areas.
  • the auxiliary lighting area 9 is adjacent to a predetermined length along the circumference of the lighting spot 6. When the preset length is the perimeter, the auxiliary lighting area 9 surrounds the lighting spot 6.
  • the auxiliary lighting area 9 includes at least an area adjacent to the lighting spot 6.
  • the above description has described the case where the auxiliary lighting area 9 is only adjacent to the lighting spot 6. It also includes that the auxiliary lighting area 9 and the lighting spot 6 intersect, that is, the auxiliary lighting area 9 includes both the area adjacent to the illumination spot 6 and the area overlapping the illumination spot 6 and the arrangement of the light source and the optical system is convenient.
  • the auxiliary lighting area 9 includes at least an area adjacent to the illumination light spot 6, and also includes a case where the illumination light spot 6 is included in the auxiliary lighting area 9 to avoid a doctor's visual fatigue to the greatest extent.
  • the auxiliary lighting area 9 is not smaller than the visual field range of the user 10 during the surgical operation.
  • the doctor needs to perform the operation in a comfortable posture, and the handle under the center of the surgical lamp can be touched to adjust the surgical lamp.
  • the distance between the lower surface of the surgical lamp and the surgical field area 5 is about 100cm
  • the distance between the doctor's head and the surgical field area 5 is about 40cm-60cm
  • the diameter of the lighting spot 6 depends on the type of surgery.
  • the change is generally 13cm-30cm.
  • the illumination spot 6 is about 12-36 degrees with respect to the opening angle 7 of the eye. Because the normal viewing angle of the human eye is about 50-60 degrees, the area of the doctor's field of view during surgery is much larger than the area 6 of the field of illumination light spot. Therefore, the auxiliary lighting area 9 is set to be not less than the visual field range of the user 10 during the surgical operation, that is, the auxiliary lighting area 9 is set to be greater than or equal to the visual field range of the user 10 during the surgical operation. The difference in internal and external illumination is small, thereby improving the long-term observation comfort of the doctor.
  • the lighting unit 2 can not only form an illumination spot 6 in the surgical field area 5, but also form an auxiliary illumination area 9 in a range adjacent to the illumination spot 6, so as to improve the adjacent area of the illumination spot 6.
  • the illuminance of the operative field illumination spot 6 and outside of the area is reduced, the uniformity of the illumination in the entire field of view is improved, the average brightness or illuminance of the illumination in the field of vision of the human eye is reduced, and the glare is reduced, thereby improving the long-term doctor Observation comfort.
  • the light source may be an LED light source.
  • LED is a semiconductor device, which has the characteristics of small light-emitting area, high brightness, and high light-emitting efficiency.
  • the LED light source has high luminous efficiency and high total power, and the LED surgical lamp usually has a high illuminance in the field. Because LED is a light source with a small light emitting area, high brightness, and close to a point light source, through the optimized design of the optical system, its supporting optical system can easily control the spatial distribution of its directional beam, so that more energy is concentrated in the center of the directional beam and the surrounding area is reduced. Stray light, and the surgical field area 5 is illuminated with a clear lighting boundary. Less stray light and clear-bounded lighting spots 6 are beneficial to improve the optical energy utilization of the optical system, reduce the overall power of the machine, and improve the effect of the spot display.
  • the lighting unit 2 includes a first lighting unit 2-1 and a second lighting unit 2-2.
  • the first lighting unit 2-1 includes a first light source and a corresponding first optical system for forming a lighting spot 6 .
  • the second lighting unit 2-2 includes a second light source and a corresponding second optical system for forming the auxiliary lighting area 9. That is, the surgical lamp includes at least one first lighting unit 2-1 and at least one second lighting unit 2-2.
  • the first light source of the first lighting unit 2-1 cooperates with the first optical system to form an illumination spot 6.
  • the second light source of the second lighting unit 2-2 cooperates with the second optical system to form an auxiliary lighting area 9.
  • the auxiliary lighting area 9 is provided by adding a second lighting unit 2-2 in the lamp body 1.
  • a plurality of second lighting units 2-2 are included, and the plurality of second lighting units 2-2 are evenly distributed in the lamp body 1.
  • a plurality of second lighting units 2-2 work together to provide auxiliary lighting.
  • a second lighting unit 2-2 is added to the lamp body 1 to provide an auxiliary lighting area 9.
  • the light source includes a first light source and a second light source, and the first light source cooperates with the optical system to form Illumination spot 6; the second light source cooperates with the optical system to form an auxiliary illumination area 9. That is, in one lighting unit 2-1, the first light source and the second light source share the same optical system, and the illumination light spot 6 and the auxiliary lighting area 9 are formed by different cooperation of the first light source and the second light source and the optical system, respectively.
  • a second light source can be added to the existing surgical lamp that only forms the illumination spot 6 by using only the first light source and the matching optical system. The second light source uses the original optical system matched with the first light source for Form an auxiliary lighting area 9.
  • the first light source is located at a focal point or a virtual focus of the optical system
  • the second light source is located outside the focal point and the virtual focus.
  • the first light source is located at the focal point or virtual focus of the optical system
  • the light beam formed by the first light source has a small divergence angle to form the illumination spot 6.
  • the second light source is placed outside the focal point or virtual focus of the optical system. Because it is not in focus, the light emitted by the second light source is collected by the optical system and emitted at a large divergence angle, thereby forming a background illumination, that is, an auxiliary lighting area 9.
  • the uniformity of the auxiliary lighting area 9 generated by this method is slightly worse than the above-mentioned methods of setting the first lighting unit 2-1 and the second lighting unit 2-2 respectively.
  • the optical system includes a first optical portion and a second optical portion.
  • the part cooperates with the first light source to form the illumination spot 6, and the second optical part cooperates with the second light source to form the auxiliary lighting area 9. That is, by adding a light source or a type or classification of the light source, and adding an optical feature in the optical system, that is, a second optical section, the newly added light source, that is, the second light source and the new optical feature are provided with the second lighting unit 2-2. Lighting effect, thereby forming auxiliary lighting area 9.
  • the first light source cooperates with the first optical part to form an illumination spot 6.
  • the first light source and the second light source are respectively electrically connected with switches for controlling the opening and closing of the first light source and the second light source, respectively. That is, both the first light source and the second light source can be turned on and off independently to meet and improve the light demand at different stages in the surgical process. For example, before the incision of the surgical incision, the patient's body 4 needs to be disinfected on a large area. At this time, if the illumination spot 6 is used to illuminate the skin 3 and the disinfectant solution, the reflection of the light 3 is strong, and the intensity of the illumination spot 6 is high. The light spot is small and it is easy to cause uncomfortable glare.
  • the second light source can be turned on separately, and the second light source can be used to illuminate the patient's body 4 in a large area with uniform and wide-range illumination.
  • a second light source may be turned on during the finishing of the patient or the operating table, as a supplement to the daily lighting of the operating room.
  • the second light source can be turned on and off during surgery to meet different needs and preferences of the user 10. For example, when the doctor needs to accurately position the surgical light illumination spot 6 in the early stage of the operation, the doctor can turn off the second light source so that the edge of the spot looks sharper to facilitate the illumination spot 6 and the surgical incision to fully overlap; When performing a long surgery later, the doctor can turn on the second light source. As another example, the second light source may also be turned off when the doctor performs certain precision operations and thinks that he can concentrate more when the surrounding environment is dark.
  • FIG. 2 is an illumination curve of the illumination spot 6 when the first light source is turned on separately.
  • the diameter of the surgical light spot 6D10 is about 14cm, and the D50 is about 8.5cm, which meets the requirements of YY0627-2008 for the distribution of surgical light spots.
  • the illuminance of the illumination spot 6 in the range outside D10 decreases very quickly.
  • the illuminance at a diameter of 18 cm is only 2% of the central illuminance, and less than 1% when it is larger than 20 cm. Therefore, when observing the light spot shown in the example in FIG.
  • FIG. 3 is a field illumination curve of the second light source turned on separately. Provides a uniform, wide-range, low-illumination illumination curve in the field of view on the field plane.
  • FIG. 4 is a composite illuminance curve of the first light source and the second light source being turned on simultaneously.
  • An illuminance curve is formed on the plane of the surgical field, that is, there is a high illuminance at the center to meet the needs of the operation, the diameter of the D10 spot remains unchanged, and the area outside the diameter of the illumination spot 6 is uniform and the brightness is reasonable.
  • a switch control unit electrically connected to each switch, and is configured to automatically control each switch action according to a pre-stored control instruction to control the opening and closing of the first light source and the second light source.
  • the specific switch control unit may be a control chip in the overall controller of the surgical lamp, or may be a separate switch controller.
  • a control instruction is pre-stored in the switch control unit, and the switches respectively connected to the first light source and the second light source are automatically controlled according to the control instruction to automatically control the first light source and the second light source to be turned on or off, respectively.
  • the specific pre-stored control instruction may be manually input by the user 10, or may be directly built-in during the preparation of the surgical lamp.
  • the second light source is connected with a second controller for adjusting its brightness.
  • the second controller can adjust the power of the second light source through the control of the voltage or current to achieve the purpose of adjusting its brightness, so as to meet the usage habits of different users 10 or the brightness of the second light source at different stages of the operation of the user 10. Different needs.
  • the method further includes a brightness obtaining device for obtaining a brightness instruction input by the user 10, and the second controller is electrically connected to the brightness obtaining device to adjust the brightness of the second light source according to the brightness instruction obtained by the brightness obtaining device. That is, the second controller can adjust the brightness according to the needs and preferences of the user 10.
  • the brightness obtaining device may specifically be an input device such as a touch screen, a keyboard, a knob, etc.
  • the user 10 inputs a required brightness instruction, and the brightness obtaining device obtains the corresponding brightness. And sends the instruction to the second controller, and the second controller adjusts the brightness of the second light source correspondingly according to the received brightness instruction. In this way, the user 10 can freely adjust the brightness of the second light source during the surgery, so that the use of the surgical light is more humane.
  • the first light source is connected with a first controller for adjusting its brightness; the second controller is electrically connected with the first controller for synchronously adjusting the brightness of the second light source according to the adjustment of the brightness of the first light source by the first controller.
  • brightness The first controller is used to adjust the brightness of the second light source.
  • the first controller can adjust the power of the first light source by controlling the magnitude of voltage or current, thereby achieving the purpose of adjusting its brightness. That is, the brightness of the first light source and the second light source can be adjusted by the first controller and the second controller, respectively.
  • the second controller is electrically connected to the first controller, so that the brightness of the first light source is controlled by the first controller. When adjusting, the second controller automatically adjusts the brightness of the second light source accordingly.
  • the second controller when the doctor increases the brightness of the first light source through the first controller, the second controller also simultaneously increases the brightness of the second light source.
  • the controller reduces the degree of the first light source, the second controller also synchronously reduces the brightness of the second light source.
  • the change range of the brightness of the second light source and the change range of the brightness of the first light source may be proportionally changed, and may also be increased or decreased simultaneously according to other calculation logic.
  • a diameter control device for adjusting the spot diameter of the illumination spot 6 is further included.
  • the second controller is electrically connected to the diameter control device, and is used for synchronously adjusting the spot size of the illumination spot 6 according to the diameter control device.
  • the diameter control device may be an operation handle of a surgical light, and the user 10 controls the light spot diameter of the illumination spot 6 by operating the handle.
  • the second controller is electrically connected to the diameter control device, and when the diameter control device adjusts the spot diameter of the illumination spot 6, the brightness of the second light source is adjusted accordingly. For example, when the spot diameter is increased, the second light source is increased. Brightness.
  • the brightness of the second light source is reduced.
  • the correspondence between the change in the specific spot diameter and the change in the brightness of the second light source can be set as required, and is not specifically limited here. That is, the brightness of the second light source may be changed according to the adjustment of the diameter of the illumination spot 6. It can be known from Formula 1 that when the solid angle of the glare light source with respect to the human eye is increased, the glare feeling is increased. At this time, the background brightness may be increased for compensation. Therefore, when the doctor increases the diameter of the surgical light illumination spot 6 through the diameter control device, the second controller controls the second light source to simultaneously increase the brightness. When the doctor controls the diameter of the surgical light illumination spot 6 to reduce the diameter, the second controller controls The second light source also reduces brightness simultaneously.
  • the above describes the formation of the auxiliary lighting area by adding the first lighting unit 2-1 or the second light source.
  • the second lighting unit 2-2 or the light source may not be added, and only the surgical lamp is changed.
  • the illumination distribution of the illumination spot in the surgical field area to improve glare.
  • FIG. 5 it is a schematic structural diagram of another specific embodiment of a surgical lamp provided by the present invention.
  • the lighting unit 2 includes a plurality of light sources, and the optical system cooperates with the plurality of light sources to form an illumination distribution including an illumination spot and an auxiliary illumination area.
  • the original illumination spot of the surgical lamp is allocated more energy outside, thereby increasing the average illuminance in the entire field of vision of the doctor and reducing glare discomfort.
  • the flexibility of part of the control is sacrificed and the user cannot be 100% satisfied, the comfort can be improved to a certain extent, and the cost is also low.
  • the light 3 emitted by the surgical lamp lighting unit 2 has a larger divergence angle, but most of its energy is in the range of 3-1. This part of the energy forms a small range of high-brightness illumination spots in the surgical field. .
  • a small part of the energy is in the peripheral 3-2 range, which is roughly the same size or larger than the field of vision of the doctor.
  • the background illumination of the entire surgical field is formed in the surgical field area, that is, the auxiliary lighting area.
  • the ratio between the illuminance value of the auxiliary lighting area and the highest illuminance value at the center of the illumination spot is in the range of 1: 20-1: 80.
  • the above formula 1 is mainly for the evaluation of the light source system.
  • the doctor observes the lighting spot of the surgical field and the area outside the lighting spot.
  • the lighting spot is generally human tissue and surgical instruments, and the area outside the lighting spot. Generally it is sterile cloth, doctor arm gloves and surgical instruments. The light reflectance of these items is different, and the brightness displayed in the human eye is also different. Therefore, the illuminance value of the large-scale illumination in the present invention is not simply calculated according to Formula 1.
  • the ratio of the illuminance value of the auxiliary lighting area to the highest illuminance value of the center of the surgical light spot is in the range of 1: 20-1: 80, which can meet the illuminance requirements of the surgery, and the doctor has better long-term observation comfort.
  • the uniformity of the auxiliary lighting area greatly helps to improve comfort.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention concerne une lampe chirurgicale comprenant un corps lumineux (1), au moins une unité d'éclairage (2) montée dans le corps lumineux (1), l'unité d'éclairage (2) comprenant une source de lumière et un système optique coopérant avec la source de lumière, l'unité d'éclairage (2) pouvant former un point lumineux d'éclairage (6) dans une zone de champ opératoire (5) et former une zone d'éclairage auxiliaire (9) au moins dans une plage adjacente au point lumineux d'éclairage, la luminosité de la zone d'éclairage auxiliaire (9) étant inférieure à la luminosité du point lumineux d'éclairage (6). Lorsque l'unité d'éclairage (2) forme non seulement un point lumineux d'éclairage (6) dans la zone de champ opératoire (5), mais forme également une zone d'éclairage auxiliaire (9) dans une plage proche du point lumineux d'éclairage, afin d'augmenter la luminosité de la zone adjacente au point lumineux d'éclairage, la diminution du contraste entre la luminosité à l'intérieur et à l'extérieur de la zone du point lumineux d'éclairage de champ opératoire (6) augmente l'uniformité d'éclairage dans l'ensemble du champ de vision, modifie la luminosité moyenne ou la luminance de l'éclairage dans le champ de vision de l'œil humain, et réduit l'éblouissement, ce qui permet d'augmenter le confort d'observation à long terme par les médecins.
PCT/CN2018/092381 2018-06-22 2018-06-22 Lampe chirurgicale Ceased WO2019241996A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/CN2018/092381 WO2019241996A1 (fr) 2018-06-22 2018-06-22 Lampe chirurgicale
CN201880001698.5A CN109073177B (zh) 2018-06-22 2018-06-22 一种手术灯
EP18923662.3A EP3812649A4 (fr) 2018-06-22 2018-06-22 Lampe chirurgicale

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Application Number Priority Date Filing Date Title
PCT/CN2018/092381 WO2019241996A1 (fr) 2018-06-22 2018-06-22 Lampe chirurgicale

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WO2019241996A1 true WO2019241996A1 (fr) 2019-12-26

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PCT/CN2018/092381 Ceased WO2019241996A1 (fr) 2018-06-22 2018-06-22 Lampe chirurgicale

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EP (1) EP3812649A4 (fr)
CN (1) CN109073177B (fr)
WO (1) WO2019241996A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113473678A (zh) * 2020-03-30 2021-10-01 通快医疗系统两合公司 手术灯系统和用于操作手术灯系统的方法

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