WO2021220779A1 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage Download PDF

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Publication number
WO2021220779A1
WO2021220779A1 PCT/JP2021/015066 JP2021015066W WO2021220779A1 WO 2021220779 A1 WO2021220779 A1 WO 2021220779A1 JP 2021015066 W JP2021015066 W JP 2021015066W WO 2021220779 A1 WO2021220779 A1 WO 2021220779A1
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WO
WIPO (PCT)
Prior art keywords
light emitting
emitting element
lighting device
shell member
unit
Prior art date
Application number
PCT/JP2021/015066
Other languages
English (en)
Japanese (ja)
Inventor
駿 森下
Original Assignee
日東精工株式会社
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Filing date
Publication date
Application filed by 日東精工株式会社 filed Critical 日東精工株式会社
Publication of WO2021220779A1 publication Critical patent/WO2021220779A1/fr

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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
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • 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
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • 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
    • F21V5/00—Refractors for light sources
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a lighting device that irradiates and illuminates the area around the affected area, which is the surgical site.
  • the illuminance at the surgical site is set at 10,000 to 100,000 lux. For this reason, the ceiling of the operating room is provided with high-intensity lighting such as a shadowless lamp to illuminate the surgical site.
  • high-intensity lighting such as a shadowless lamp to illuminate the surgical site.
  • the light of the shadowless lamp may not reach the surgical site sufficiently due to being blocked by the surrounding tissue, and the illuminance may be insufficient.
  • a lighting device as shown in Patent Document 1 is known.
  • This lighting device consists of a light source installed at a position away from the object to be irradiated and a light guide extending from this light source to the object to be irradiated. Is configured to irradiate.
  • Such a lighting device has an advantage that it does not interfere with the operator because only a thinly configured light guide is installed near the object to be irradiated.
  • this lighting device requires a light source with high illuminance due to the transmission loss of the light guide, which causes a problem of high power consumption, and when the light guide is bent beyond the allowable bending radius, the irradiation light reaches the tip of the light guide. There was a problem that the irradiation range was limited, such as not being transmitted. Further, in a lighting device using a light guide, it is known that the tip of the light guide becomes hot, which causes burns and the like.
  • a lighting device as shown in Patent Document 2 is also known.
  • This lighting device includes a lighting unit capable of illuminating a predetermined location, a support unit that supports the lighting unit at one end, and a power supply unit to which the other end of the support unit is connected. It is installed near the part and is configured to irradiate the surgical part.
  • the lighting device that directly irradiates the surgical site with the lighting unit has the advantage of low power consumption because there is no loss transmission by the light guide, and because there is no allowable bending radius like the light guide, the installation location and irradiation range It has the advantage of a high degree of freedom.
  • This lighting device includes a lighting unit capable of illuminating a predetermined location, a support unit that supports the lighting unit at one end, and a power supply unit to which the other end of the support unit is connected. It is composed of a hollow shell member in which a through hole is formed, a main lens that closes the open end of the shell member, and a light emitting element that is arranged with a gap between the shell member and the main lens in the shell member. The light emitting element is supported by a radiator having a capacity sufficiently larger than that of the light emitting element.
  • Such a lighting device has a structure in which the heat generated by the light emitting element is transferred to the radiator, a sufficiently large amount of electric power can be applied to the light emitting element. As a result, it was possible to irradiate with an illuminance of 10,000 lux or more.
  • a heat radiating body that supports a light emitting element that is a light source is arranged with a gap between it and a shell member that supports the lens. Therefore, it is not easy to arrange the light emitting element and the lens coaxially, and there is a problem that the man-hours required for assembling the lighting device increase. Further, since the heat radiating body is a columnar member formed by combining two main bodies formed in a semi-cylindrical shape, there is a problem that the number of man-hours required for assembly is further increased.
  • the present invention has been created in view of the above problems, and an object of the present invention is to provide a lighting device that can prevent damage to the light emitting element due to heat generation, can illuminate the surgical site with high illuminance, and can be easily assembled. do.
  • the present invention connects a lighting unit that illuminates a predetermined portion, a support unit having the lighting unit at one end, and the other end of the support unit, and supplies power to the lighting unit.
  • the lighting unit includes a unit, and the lighting unit has a gap between a hollow shell member having at least one opening, a condensing lens provided by closing the open end of the shell member, and the condensing lens.
  • It includes a light emitting element that is contained in the shell member so as to have and is electrically connected to the power supply unit, and a radiator that supports the light emitting element.
  • the light emitting element has its light emitting surface on the condensing lens.
  • the radiator is inscribed in the shell member. Since the heat radiating body is inscribed in the shell member in this way, the heat radiating body can be easily arranged coaxially with the shell member and the condenser lens, and the heat transferred from the light emitting element can be radiated to the shell member. It becomes.
  • the light emitting element is attached to a substrate fixed to the heat radiating body, and the substrate is configured so that the light emitting element and the heat radiating body can be heat-transferredly connected.
  • an electric wire path penetrates in the axial direction of the radiator, and an electric wire that electrically connects the power supply unit and the light emitting element passes through the electric wire path.
  • the lighting unit can realize a space-saving wiring structure while maintaining a structure in which the radiator is inscribed in the shell member and ease of assembly.
  • the electric wire path communicating with the electric wire path of the radiator penetrates through the substrate, and as a result, the axes of the radiator and the substrate can be easily aligned.
  • the condenser lens is provided with a leg portion that can come into contact with the heat radiating body or the substrate.
  • the distance between the condenser lens and the radiator or the substrate that is, the distance between the condenser lens and the light emitting element can be kept constant at all times.
  • a through hole including a small diameter portion that opens on one end side of the shell member and a large diameter portion that communicates with the small diameter portion is formed, and the condenser lens has a small diameter. It is preferable to have a disk portion that abuts on the boundary portion between the portion and the large diameter portion, and a spherical portion formed on one end side of the disk portion.
  • the disk portion of the condenser lens can be brought into contact with the step portion of the shell member and fixed.
  • a buffer is formed in the disk portion of the condenser lens so as to surround the spherical surface portion.
  • the support unit includes a hollow elastic tube, an electric wire inserted through the elastic tube and electrically connecting the power supply unit and the lighting unit, and a metal wire inserted through the elastic tube.
  • the metal wire is preferably configured to have a predetermined thickness that can be bent manually and does not bend due to the weight of the lighting unit. Further, it is preferable that the end portion of the metal wire of the support unit is inserted into the heat radiating body.
  • the shell member is preferably made of a biocompatible metal member.
  • the condenser lens is preferably made of gamma ray resistant grade polycarbonate.
  • the heat radiating body that supports the light emitting element is provided inscribed in the through hole of the shell member, heat is easily transferred from the heat radiating body to the shell member, and heat can be dissipated in the entire lighting unit. Become. Therefore, it is possible to prevent the light emitting element from becoming hot even when it is used continuously for a long time, and there is an advantage that deterioration of the light emitting element can be prevented. As a result, there are advantages such as being able to secure an illuminance of 10,000 lux or more on the irradiated surface for a long period of time.
  • the heat radiating body is inscribed in the shell member, there is an advantage that the heat radiating body can be easily arranged coaxially with the shell member.
  • the light emitting element is supported by the substrate and the electric wire path penetrates between the substrate and the radiator, there are advantages such that the light emitting element can be easily installed coaxially with the condenser lens. be.
  • the substrate is configured to heat-transferably connect the light emitting element and the heat radiating body, the above-mentioned heat radiating performance can be maintained even though the substrate is attached between the light emitting element and the heat radiating body. There are advantages such as.
  • the space-saving wiring structure has an advantage that both the above-mentioned heat radiating performance and the space saving of the lighting unit can be achieved at the same time. Due to these effects, it is possible to easily assemble a space-saving lighting device that can maintain an illuminance of 10,000 lux or more on the irradiation surface for a long period of time and does not interfere with the operator even if it is installed near the surgical site. There are advantages.
  • the distance between the condenser lens and the light emitting element is always constant due to the legs of the condenser lens, there is an advantage that it is possible to accurately illuminate a desired illumination position.
  • the structure in which the disc portion of the condenser lens is brought into contact with the step portion of the shell member and fixed thereof prevents the condenser lens from tilting with respect to the shell member, so that it can be assembled extremely easily. There is. Further, by filling the sealing material between the buffer formed in the condenser lens and the shell member, there is an advantage that the airtightness between the condenser lens and the shell member can be improved.
  • the support unit has flexibility and a shape maintaining function, there is an advantage that the lighting unit can be arranged at a desired position and irradiation can be performed. Further, since one end of the metal wire of the support unit is inserted into the other end of the heat radiating body, there is an advantage that the connection portion between the lighting unit and the support unit is prevented from being broken. These have advantages such as being able to prevent the irradiation range from being changed by the weight of the lighting unit.
  • the shell member is made of a biocompatible metal member, and there is no risk of causing metal allergy or the like when the shell member comes into contact with the human body, so that there is a possibility of contact with the human body such as an operating room.
  • the support unit has flexibility and a shape maintaining function, there is an advantage that the lighting unit can be arranged at a desired position and irradiation can be performed. Further, since one end of the metal wire of the support unit is inserted into the other end of the heat radiating body, there is an advantage that the connection portion between the lighting unit and the support unit is prevented from being broken. These have advantages such as being able to prevent the irradiation range from being changed by the weight of the lighting unit. Moreover, the space-saving wiring structure due to the electric wire path penetrating the heat radiating body makes it possible to achieve both the above-mentioned heat radiating performance and the space saving of the lighting unit. Therefore, there is an advantage that a lighting unit can be installed near the surgical site.
  • the shell member is made of a biocompatible metal member, and there is no risk of causing metal allergy or the like when the shell member comes into contact with the human body, so that there is a possibility of contact with the human body such as an operating room.
  • the condensing lens does not discolor even when irradiated with gamma rays, there is an advantage that gamma ray sterilization is possible for the illuminating device.
  • reference numeral 1 denotes a lighting device, which is a support unit 2, a lighting unit 3 supported by one end of the support unit 2 and capable of illuminating a predetermined location, and the support unit 2.
  • a power supply unit 4 to which the other end of the above is connected is provided.
  • the support unit 2 includes a hollow elastic tube 21 extending in the longitudinal direction, through which the electric wires 22, 22 and the copper wire 23 are inserted.
  • the electric wires 22, 22 and the copper wire 23 project by a predetermined dimension from one end of the elastic tube 21, and the projecting portions of the electric wires 22, 22 and the copper wire 23 are inserted into the lighting unit 3.
  • the electric wires 22 and 22 are generally those in which a conductor is coated with an insulating film, and a power receiving connector 24 is connected to the other end of the electric wires 22 and 22.
  • the copper wire 23 is set to a thickness that does not bend due to its own weight of the lighting unit 3 and the support unit 2 and can be bent by human power. Therefore, the support unit 2 has a flexibility of being deformed by an external force by the copper wire 23 and a shape maintaining function of maintaining an arbitrary shape even when the external force is removed.
  • the lighting unit 3 includes a hollow cylindrical shell member 31 in which a through hole 32 is formed in the axial direction, and the through hole 32 of the shell member 31 is on the side to be irradiated (not shown). It is composed of a small diameter portion 32a that opens to (hereinafter, referred to as one end side) and a large diameter portion 32b that is continuous with the small diameter portion 32a and opens to the support unit 2 side (hereinafter, referred to as the other end side).
  • the hole diameter of the large diameter portion 32b is larger than the hole diameter of the small diameter portion 32a, so that the through hole 32 has a stepped portion 32c at the boundary portion between the small diameter portion 32a and the large diameter portion 32b. It is formed.
  • a condenser lens 33 that closes the opening of the shell member 31 is attached to one end of the shell member 31.
  • the condenser lens 33 is integrally formed with a spherical portion 33a having a diameter smaller than that of the small diameter portion 32a of the through hole 32 and a disc portion 33b having a diameter larger than that of the small diameter portion 32a. It is a molded plano-convex lens, and in this condenser lens 33, the spherical surface portion 33a is directed outward, and the disc portion 33b is in contact with the stepped portion 32c of the through hole 32.
  • the disk portion 33b and the step portion 32c are airtightly bonded with an adhesive or the like.
  • annular convex portion 33d is integrally formed on the surface of the disk portion 33b on which the spherical portion 33a is formed.
  • the annular convex portion 33d is configured to have a diameter larger than the boundary portion between the spherical portion 33a and the disk portion 33b and a diameter smaller than the small diameter portion 32a of the through hole 32 of the shell member 31.
  • the gap between the 33d and the small diameter portion 32a is filled with an adhesive or a sealing agent (not shown) over the entire circumference.
  • two leg portions 33c and 33c extending in parallel with the axis of the shell member 31 are integrally formed.
  • the legs 33c and 33c are formed with a predetermined width so as not to come into contact with the light emitting element 36 described later, and the axial dimensions (lengths of the legs 33c and 33c) of the condenser lens 33. It is determined based on the refractive index and the like. That is, the illuminance of the light emitted by the light emitting element 36 is set to be uniform on the effective irradiation surface (the surface where the illuminance of at least 10,000 lux can be secured), and the effective irradiation surface is set to be as wide as possible. As a result, an air layer is formed between the disk portion 33b and the light emitting element 36 so that they do not come into contact with each other.
  • a substantially disk-shaped substrate 35 is concentrically fixed to one end of the heat radiating body 34, and the heat radiating body 34 has a shell so that the substrate 35 abuts on the legs 33c and 33c of the condensing lens 33. It is fixed in the member 31.
  • the substrate 35 is a substantially disk-shaped member whose diameter is slightly smaller than the diameter of the radiator 34, and the surface of the substrate 35 facing the condensing lens 33 (hereinafter referred to as the surface) is a light source.
  • the light emitting element 36 is fixed.
  • the distance between the light emitting element 36 and the disc portion 33b of the condensing lens 33 is determined by the contact between the legs 33c and 33c and the substrate 35.
  • the radiator body 34 and the substrate 35 are formed with groove-shaped electric wire paths 34b and 34b penetrating in the axial direction thereof, and the electric wires 22 and 22 of the support unit 2 are inserted into the electric wire paths 34b and 34b. Has been done. One end of the electric wires 22 and 22 that have passed through the electric wire paths 34b and 34b is connected to the substrate 35. Further, as shown in FIG.
  • an insertion hole 34a having substantially the same diameter as the copper wire 23 of the support unit 2 is formed at the other end of the heat radiating body 34, and the copper wire is formed in the insertion hole 34a.
  • One end of 23 is inserted.
  • the heat radiating body 34 and the shell member 31 are fixed by an adhesive, and the shell member 31 and the elastic tube 21 of the support unit 2 are fixed by a shrinkable tube 37. Since the airtightness of the connecting portion between the support unit 2 and the lighting unit 3 is maintained by the shrinkable tube 37, blood or the like is prevented from entering the lighting unit 3 and the support unit 2.
  • the heat radiating body 34 is configured to have a volume much larger than that of the light emitting element 36, whereby the heat radiating body 34 is configured to have a sufficient heat capacity with respect to the heat generation amount of the light emitting element 36. ing.
  • connection portions 35a and 35a made of a conductive pattern are printed on the substrate 35, and the light emitting element 36 is connected to the connection portions 35a and 35a by soldering or the like.
  • the light emitting element 36 is configured to be positioned concentrically with the condenser lens 33.
  • the electric wires 22 and 22 that have passed through the electric wire paths 34b and 34b are connected to the connecting portions 35a and 35a by soldering or the like, whereby the light emitting element 36 is electrically connected to the support unit 2.
  • heat radiating portions 35b and 35b which are also made of a conductive pattern, are printed on the back surface of the substrate 35, and the heat radiating portions 35b and 35b are conductive through holes formed through the front surface of the substrate 35 to the back surface. (Not shown) is electrically and heat-transferredly continuous with the connecting portions 35a and 35a. As shown in FIG. 5, the heat radiating portions 35b and 35b form a form in which the heat radiating portions 35b and 35b spread over substantially the entire back surface of the substrate 35. Further, the substrate 35 is adhered to the heat radiating body 34 by an adhesive applied to the entire back surface including the heat radiating portions 35b and 35b.
  • This adhesive has both insulating properties and thermal conductivity, and the substrate 35 and the heat radiating body 34 are insulated through the adhesive, and the heat generated by the light emitting element 36, which will be described later, is transferred from the substrate 35. It is possible to dissipate heat to the heat radiating body 34.
  • the shell member 31 is made of stainless steel, a titanium alloy, or the like, which is an example of a metal material having ecological compatibility
  • the radiator 34 is a lightweight, inexpensive, and relatively high thermal conductivity metal material. It is composed of an aluminum alloy or the like, which is an example.
  • the condenser lens 33 is made of a gamma ray resistant grade polycarbonate or the like, which is less discolored or deteriorated when irradiated with gamma rays.
  • the light emitting element 36 is a surface mount type LED (light emitting diode), and is a white light emitting LED that emits light close to sunlight.
  • the color temperature representing the color of light is in the range of 5000 to 6500K and the average color rendering index Ra representing the recall rate of sunlight is 95 or more, and in particular, a special color rendering index representing the color rendering index of red.
  • Those having an evaluation number R9 of 90 or more are preferable.
  • the power supply unit 4 has a power supply connection unit 41 having a power plug (not shown) that can be directly connected to a power outlet (not shown, hereinafter referred to as an outlet) of an external commercial power supply (hereinafter referred to as a power supply).
  • the power supply connection unit 41 converts the alternating current sent from the power supply into a DC current having a constant voltage and transmits the alternating current to the electric circuit 42.
  • the electric circuit 42 includes a constant current circuit 42a that converts the value of the direct current sent from the power supply connection portion 41 into a predetermined value, and the constant current circuit 42a is provided with the illuminance of the light emitting element 36.
  • An adjustable dimming circuit 42b is connected.
  • the dimming circuit 42b is a circuit configured to adjust the current value supplied to the light emitting element 36 by a variable resistor or the like, and is a dimming means 42c for setting or manipulating the resistance value of the variable resistor. Is connected.
  • the dimming circuit 42b configured in this way is connected to a power supply connector 43 that can be connected to the power receiving connector 24 of the support unit 2.
  • the power supply connector 43 is detachably configured to be detachable from the power receiving connector 24, and the power supply unit 4 and the support unit 2 are electrically connected by connecting the connectors 43 and 24.
  • the dimming circuit 42b and the dimming means 42c may have other configurations such as a circuit configured to adjust the pulse width of the current supplied to the light emitting element 36 and a means for manipulating the pulse width. no problem.
  • the power supply unit 4 connected to the power supply is installed in the vicinity of the patient to be treated, and the power receiving connector 24 of the support unit 2 is connected to the power supply connector 43 of the power supply unit 4.
  • the alternating current supplied from the power supply to the power supply connection unit 41 is converted into a direct current having a constant voltage and transmitted to the electric circuit 42.
  • the direct current transmitted to the electric circuit 42 is converted into a predetermined current suitable for the light emitting element 36 by the constant current circuit 42a and supplied to the support unit 2.
  • the electricity converted to be suitable for the light emitting element 36 is supplied from the electric wires 22 and 22 of the support unit 2 to the light emitting element 36 through the substrate 35, whereby the light emitting element 36 emits light. Further, when the light emitting element 36 emits light, the substrate 35 and the heat radiating body 34 are insulated from each other by an adhesive having an insulating property, so that short circuits and electric leakage are prevented. Further, since the current value supplied to the light emitting element 36 can be adjusted by the dimming circuit 42b of the power supply unit 4 and the dimming means 42c connected to the dimming circuit 42b, the illuminance of the light emitting element 36 Can be changed arbitrarily.
  • the light emitted by the light emitting element 36 forms an irradiation surface in a predetermined range through the condenser lens 33 of the illumination unit 3.
  • the substrate 35 is sandwiched between the heat radiating body 34 fixed to the shell member 31 and the legs 33c and 33c of the condensing lens 33, the substrate 35 is unlikely to be displaced with respect to the condensing lens 33. ..
  • the light emitting element 36 connected to the substrate 35 is always positioned and fixed at a predetermined position, the light emitting element 36 may be displaced or vibrate with respect to the condenser lens 33 due to vibration or the like. Can be prevented.
  • the effective irradiation surface of light, the irradiation range, and the focusing accuracy by the condensing lens 33 are all kept uniform, and it is possible to accurately illuminate a desired illuminating position.
  • the illuminating unit 3 When the illuminating unit 3 illuminates the surgical site, light having an illuminance of 10,000 lux on the irradiation surface is required, so that a relatively large amount of electric power is applied to the light emitting element 36. This makes it possible to illuminate the affected area / surgical area satisfactorily.
  • the light emitting element 36 is a white light emitting LED that emits light close to sunlight, so that the colors around the surgical site can be clearly reproduced, and the colors of organs, blood, etc. can be reproduced more accurately. It is possible to assist in the identification of the affected area.
  • the light emitting element 36 takes on a relatively larger amount of heat than before due to its characteristics, and this heat passes through the substrate 35 connected to the light emitting element 36. Since it is absorbed by the heat radiating body 34, excessive heat generation in the vicinity of the light emitting element 36 is prevented.
  • the substrate 35 has a structure in which the connecting portions 35a and 35a to which the light emitting element 36 is connected and the heat radiating portions 35b and 35b connected to the heat radiating body 34 via an adhesive are heat-transferredly continuous. Therefore, the light emitting element 36 and the heat radiating body 34 are heat-transferredly connected.
  • the heat from the light emitting element 36 can be smoothly transferred to the heat radiating body 34.
  • the heat radiating body 34 is configured to have a sufficiently large capacity with respect to the light emitting element 36, the light emitting element 36 can continue to dissipate heat to the heat radiating body 34 even when used for a long time.
  • the light emitting element 36 is prevented from being deteriorated or damaged by the heat generated by itself.
  • the heat transferred to the heat radiating body 34 is transmitted to the shell member 31 inscribed with the heat radiating body 34 while spreading from one end side to the other end side of the heat radiating body 34, and is dissipated to the outside. Therefore, heat can be dissipated in the entire lighting unit 3.
  • the diameter of the substrate 35 is smaller than the diameter of the radiator body 34 and there is a gap (air layer) between the substrate 35 and the shell member 31, heat is transferred from the substrate 35 to the shell member 31. Hateful.
  • most of the heat from the light emitting element 36 is transferred to the heat radiating body 34, so that it is possible to prevent a point on the outer surface of the lighting unit 3 from being locally heated.
  • the outer surface of the lighting unit 3 is unlikely to become hot. Further, since the legs 33c and 33c of the condenser lens 33 are in contact with the substrate 35, a part of the heat transferred to the substrate 35 is also transferred to the condenser lens 33.
  • the lighting device 1 of the present invention Since it has the above heat dissipation effect, in the lighting device 1 of the present invention, it is possible to apply a large current to the light emitting element 36 for a long time as described above. As a result, it is possible to continue illuminating with high illuminance even during long-term surgery.
  • the lighting unit 3 When the surgical part is illuminated by the lighting unit 3, the lighting unit 3 can be arranged at a desired position by bending or bending the support unit 2. Therefore, even when the surgical site to be illuminated changes from time to time, or when the patient's posture changes, the lighting unit 3 can be freely arranged and illuminated in the optimum position and orientation that is convenient for the operator each time. It is possible to accurately illuminate the desired position. Since the shell member 31 is made of biocompatible stainless steel or the like at the time of such irradiation of the surgical site, metal allergy or the like does not occur when the patient to be treated and the lighting unit 3 come into contact with each other. Therefore, it can be safely used even in the operating room.
  • the heat radiating body 34 of the lighting unit 3 is made of an aluminum alloy or the like, the lighting unit 3 can be made lighter than the case where the entire heat radiating body 34 is made of copper, and the support unit 2 can be made as small as possible. It becomes possible to do. Further, since the copper wire 23 of the support unit 2 is inserted into the heat radiating body 34, it is possible to prevent the lighting unit 3 and the support unit 2 from being broken at the connecting portion. Therefore, it is possible to prevent the support unit 2 from being curved during lighting due to the weight of the lighting unit 3 and changing the irradiation range, and the support unit 2 that supports the lighting unit 3 is made as small as possible. It becomes possible to change.
  • the heat radiating body 34 is inscribed in the shell member 31, and the light emitting element 36 and the power supply unit 4 can be electrically connected. Become.
  • wiring can be performed in a space-saving manner while maintaining the above-mentioned heat dissipation performance, so that the lighting unit 3 can be made as small as possible.
  • the lighting unit 3 is configured to be as small as possible as described above, but by matching the electric wire paths 34b and 34b formed on the radiator 34 and the substrate 35, the substrate 35 is combined with the radiator 34. It can be easily fixed on the same axis. Further, since the connecting portions 35a and 35a of the substrate 35 are configured to arrange the light emitting element 36 at the center of the substrate 35, the light emitting element 36 can be easily installed coaxially with the substrate 35. Therefore, the heat radiating body 34, the substrate 35, and the light emitting element 36 are coaxially fixed.
  • the condensing lens 33 and the light emitting element fixed to the shell member 31 are fixed by inscribed the heat radiating body 34 that coaxially supports the substrate 35 and the light emitting element 36 into the through hole 32 of the shell member 31.
  • the 36 can be installed coaxially with each other easily and with high accuracy.
  • the lighting unit 3 having excellent light collecting performance as described above can be easily assembled.
  • the substrate 35 is configured to come into contact with the legs 33c and 33c of the condenser lens 33, the irradiation surface is wide and the irradiation surface is wide without adjusting the distance between the condenser lens 33 and the light emitting element 36 again at the time of assembly.
  • the condenser lens 33 is brought into contact with the step portion 32c of the through hole 32 and fixed, the condenser lens 33 is less likely to tilt with respect to the axis of the shell member 31.
  • the configuration can be easily assembled. In this way, when the condenser lens 33 is fixed to the shell member 31, a part of the adhesive material applied between the disc portion 33b and the step portion 32c is extruded toward the spherical portion 33a. The extruded adhesive is accumulated in the gap between the shell member 31 and the annular convex portion 33d.
  • annular convex portion 33d acts as a protective wall in this way, it is possible to prevent the adhesive from adhering to the spherical portion 33a and deteriorating the condensing performance of the condensing lens 33. Further, by filling the gap between the annular convex portion 33d and the small diameter portion 32a with an adhesive or the like, the airtightness between the condenser lens 33 and the shell member 31 can be ensured.
  • the lighting device 1 is installed near the surgical site because the support unit 2 and the power supply unit 4 are detachably configured by the power supply connector 43 and the power receiving connector 24 as described above after use and storage. Only the support unit 2 and the lighting unit 3 to be supported can be discarded or sterilized after the operation. As a result, the lighting unit 3 used in the vicinity of the surgical site can be kept clean at all times, and the power supply unit 4 having a relatively complicated configuration and being expensive can be reused. Further, since the condenser lens 33 is made of gamma-ray resistant grade polycarbonate that is not discolored by gamma rays, gamma-ray sterilization can be performed on the lighting unit 3 and the support unit 2.
  • the shell member 31 of the lighting unit 3 installed near the surgical site at the time of illumination is airtightly adhered to the condensing lens 33 on one end side and airtightness is ensured by the contraction tube 37 on the other end side. Blood or the like does not enter the inside of the support unit 2 or the lighting unit 3, and contamination, short circuit, etc. due to these are prevented.
  • the lighting device 1 according to the present invention is not limited to the above-mentioned one, and various changes can be made without departing from the spirit of the invention.
  • the outer peripheral surface of the shell member 31 is covered with the shrinkable tube 37, or one end surface thereof is coated with an insulating resin or the like, and the surface exposed to the outside is covered with the insulating member. It may be broken. As a result, even if the conductors of the electric wires 22 and 22 come into contact with the shell member 31, short circuits and electric leakages due to the contact are prevented.
  • the electric wires 22 and 22 of the support unit 2 are a thick electric wire (not shown) contained in the elastic tube 21 and a thin electric wire (not shown) passing through the electric wires paths 34b and 34b of the lighting unit 3. It may consist of two wires.
  • the electric wire paths 34b and 34b of the heat radiating body 34 can be thinned, so that the volume of the heat radiating body 34 and the contact area between the heat radiating body 34 and the shell member 31 are increased, and there is an advantage that the heat radiating performance is further improved.
  • the copper wire 23 of the support unit 2 is an example of a metal wire, and may be a metal wire composed of another metal.
  • a metal foil may be attached to one end surface of the heat radiating body 34 instead of the substrate 35, and the light emitting element 36 and the power supply unit 4 may be connected to the metal foil.
  • the legs 33c and 33c of the condensing lens 33 are in contact with one end surface of the heat radiating body 34, and the distance between the disc portion 33b and the condensing lens 33 is maintained at an optimum value.
  • the copper foil is adhered to the heat radiating body 34 with the same insulating adhesive as the substrate 35 to prevent electric leakage and the like.
  • annular convex portion 33d is an example of a buffer for accumulating an adhesive or the like between the condenser lens 33 and the shell member 31 as described above, and the annular convex portion 33d may have any other shape such as a concave portion or a step portion. No problem.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un dispositif d'éclairage dans lequel un endommagement d'un élément électroluminescent à partir d'une émission de chaleur est empêché, et qui peut éclairer une partie fonctionnelle avec un degré élevé d'éclairage et peut être facilement assemblé. La solution selon l'invention porte sur un dispositif d'éclairage (1) comprenant une partie d'éclairage (3) qui éclaire un emplacement prescrit, une partie support (2) qui comprend la partie d'éclairage (3) à une extrémité et une partie d'alimentation électrique (4) qui est connectée à l'autre extrémité de la partie support (2) et fournit de l'énergie à la partie d'éclairage (3), ladite partie d'éclairage (3) comprenant un élément boîtier creux (31) qui présente au moins une extrémité ouverte, une lentille de condenseur (33) qui est disposée de façon à sceller l'extrémité ouverte de l'élément boîtier (31), un élément électroluminescent (36) qui est électriquement connecté à la partie d'alimentation électrique (4) et est enveloppé par l'élément boîtier (31) de telle sorte qu'un entrefer soit interposé entre ledit élément électroluminescent (36) et la lentille de condenseur (33), et un corps de rayonnement de chaleur (34) qui supporte l'élément électroluminescent (36) et ledit élément électroluminescent (36) ayant une surface d'émission de lumière disposée à l'opposé de la lentille de condenseur (33), le dispositif d'éclairage étant caractérisé en ce que le corps de rayonnement de chaleur (34) est inscrit sur l'élément boîtier (31).
PCT/JP2021/015066 2020-04-30 2021-04-09 Dispositif d'éclairage WO2021220779A1 (fr)

Applications Claiming Priority (2)

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JP2020080568A JP7510275B2 (ja) 2020-04-30 2020-04-30 照明装置
JP2020-080568 2020-04-30

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WO2021220779A1 true WO2021220779A1 (fr) 2021-11-04

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008269938A (ja) * 2007-04-19 2008-11-06 Hamamatsu Photonics Kk 光照射ヘッド及び光照射装置
JP2015002032A (ja) * 2013-06-14 2015-01-05 株式会社朝日ラバー 透光防水カバーレンズ
JP2018527959A (ja) * 2015-05-19 2018-09-27 シンガポール ヘルス サービシーズ プライベート リミテッド 照明装置
WO2018235436A1 (fr) * 2017-06-22 2018-12-27 デンカ株式会社 Stratifié comprenant une couche en plastique industriel thermoplastique et procédé de production d'une tel stratifié
JP2019000476A (ja) * 2017-06-16 2019-01-10 日東精工株式会社 照明装置

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Publication number Priority date Publication date Assignee Title
JP2010182486A (ja) 2009-02-04 2010-08-19 Koito Mfg Co Ltd 車両用灯具
JP6148557B2 (ja) * 2013-07-23 2017-06-14 Hoya株式会社 走査型共焦点内視鏡用指標ユニットおよび画像取得方法
JP2015153625A (ja) 2014-02-14 2015-08-24 東芝ライテック株式会社 直管形ランプおよび照明装置
JP5854089B2 (ja) 2014-06-18 2016-02-09 第一精工株式会社 電気部品用ハウジング

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008269938A (ja) * 2007-04-19 2008-11-06 Hamamatsu Photonics Kk 光照射ヘッド及び光照射装置
JP2015002032A (ja) * 2013-06-14 2015-01-05 株式会社朝日ラバー 透光防水カバーレンズ
JP2018527959A (ja) * 2015-05-19 2018-09-27 シンガポール ヘルス サービシーズ プライベート リミテッド 照明装置
JP2019000476A (ja) * 2017-06-16 2019-01-10 日東精工株式会社 照明装置
WO2018235436A1 (fr) * 2017-06-22 2018-12-27 デンカ株式会社 Stratifié comprenant une couche en plastique industriel thermoplastique et procédé de production d'une tel stratifié

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