WO2021220779A1 - Illumination device - Google Patents

Illumination device 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
French (fr)
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/en

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Classifications

    • 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.

Abstract

[Problem] To provide an illumination device in which damage to a light emitting element from heat emission is prevented, and which can illuminate an operative part with a high degree of illumination and can be easily assembled. [Solution] An illumination device (1) equipped with an illumination part (3) that lights up a prescribed location, a support part (2) that comprises the illumination part (3) at one end, and a power supply part (4) that is connected to the other end of the support part (2) and supplies power to the illumination part (3), said illumination part (3) comprising a hollow case member (31) that has at least one open end, a condenser lens (33) that is provided so as to seal the open end of the case member (31), a light emitting element (36) that is electrically connected to the power supply part (4) and is enveloped by the case member (31) such that an air gap is interposed between said light emitting element (36) and the condenser lens (33), and a heat radiation body (34) that supports the light emitting element (36), and said light emitting element (36) having a light emitting surface arranged opposite to the condenser lens (33), wherein the illumination device is characterized in that the heat radiation body (34) is inscribed on the case member (31).

Description

照明装置Lighting device
　本発明は、手術箇所となる患部周辺に光を照射し照らす照明装置に関する。 The present invention relates to a lighting device that irradiates and illuminates the area around the affected area, which is the surgical site.
　手術箇所の照度は、１０，０００ルクスから１００，０００ルクスと定められている。このため、手術室の天井には無影灯等の高照度の照明が備えられ、手術箇所を照らしている。しかし、身体の深部に術部がある場合等においては、周辺組織に遮られて無影灯の光が手術箇所に十分届かず、照度が不足することがある。 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. However, when there is a surgical site in the deep part of the body, 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.
　そのため、特許文献１に示すような照明装置が知られている。この照明装置は、被照射対象から離れた位置に設置される光源と、この光源から被照射対象まで延びるライトガイドからなり、光源から発せられた照射光は、ライトガイド内を伝って被照射対象を照射するよう構成されている。このような照明装置は、被照射対象付近設置されるのが細く構成されたライトガイドのみであるため、術者の邪魔にならないという利点がある。しかしながら、この照明装置には、ライトガイドの伝達損失により、高照度の光源が必要となるため、消費電力が大きいという問題および、ライトガイドを許容曲げ半径以上曲げると照射光がライトガイドの先端まで伝達されない等、照射可能範囲に制限があるという問題があった。また、ライトガイドを用いる照明装置においては、ライトガイドの先端部が高温となるため、熱傷等の原因になるという問題も知られている。 Therefore, 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. However, 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.
　また、特許文献２に示されるような照明装置も知られている。この照明装置は、所定の箇所を照明可能な照明ユニットと、この照明ユニットを一端に支持する支持ユニットと、この支持ユニットの他端が接続された電源ユニットとを備えており、照明ユニットを術部付近に設置し、術部を照射するように構成されている。このように照明ユニットが術部を直接照射する照明装置は、ライトガイドによる損失伝達がないため消費電量が小さいという利点および、ライトガイドのように許容曲げ半径がないため設置場所、照射可能範囲の自由度が高いという利点がある。しかしながら、このような照明装置においては、発光素子の発熱量を抑えるために発光素子に大きな電力をかけることができず、結果、照度が不足してしまう等の課題があった。 Further, 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. In this way, 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. However, in such a lighting device, it is not possible to apply a large amount of electric power to the light emitting element in order to suppress the amount of heat generated by the light emitting element, and as a result, there is a problem that the illuminance becomes insufficient.
　そのため、特許文献３に記載の照明装置が創成されている。この照明装置は、所定の箇所を照明可能な照明ユニットと、この照明ユニットを一端に支持する支持ユニットと、この支持ユニットの他端が接続された電源ユニットとを備えており、前記照明ユニットは、貫通孔が形成された中空の殻部材と、この殻部材の開口端を封鎖する主レンズと、前記殻部材内に殻部材および主レンズと空隙を持って配置された発光素子とから構成されており、発光素子は、発光素子より十分大容量に構成された放熱体に支持されている。このような照明装置は、発光素子の発した熱が放熱体に伝達される構造であるため、発光素子に十分大きい電力を負荷できる。これにより、１０，０００ルクス以上照度で照射可能という特徴があった。 Therefore, the lighting device described in Patent Document 3 has been created. 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. Since 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.
特開２０１５－１２３３６６号公報Japanese Unexamined Patent Publication No. 2015-123366 特表２０１８－５２７９５９号公報Special Table 2018-527959 特願２０１９－３７０２７号公報Japanese Patent Application No. 2019-37027
　しかしながら、特許文献３に記載の照明装置は、光源である発光素子を支持する放熱体がレンズを支持する殻部材との間に空隙を持って配されていた。このため、発光素子とレンズとを同軸上に配置するのが容易ではなく、照明装置の組立てに要する工数が増加してしまう等の問題があった。また、放熱体は、半円柱状に形成された２個の主体部を組み合わせて構成された円柱状部材であったため、さらに組立てに要する工数が増加してしまう等の問題があった。 However, in the lighting device described in Patent Document 3, 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.
　本発明は、上記課題に鑑みて創生されたものであり、発熱による発光素子の破損等を防止し、術部を高照度で照明可能かつ、容易に組立可能な照明装置の提供を目的とする。この目的を達成するために本発明は、所定の箇所を照らす照明ユニットと、この照明ユニットを一端に備える支持ユニットと、この支持ユニットの他端を接続し、前記照明ユニットへ電力を供給する電源ユニットとを具備し、前記照明ユニットは、少なくとも一方が開口した中空の殻部材と、前記殻部材の開口端を封鎖して設けられた集光レンズと、この集光レンズとの間に空隙を持つよう前記殻部材に内包され、前記電源ユニットに電気的に接続されている発光素子と、この発光素子を支持する放熱体とを備え、前記発光素子は、その発光面を前記集光レンズに対向して配置されている照明装置において、前記放熱体は、殻部材に内接していることが好ましい。このように放熱体が殻部材に内接しているため、放熱体は、殻部材および集光レンズと同軸上に容易に配置可能となるとともに、発光素子から伝達された熱を殻部材に放熱可能となる。なお、前記発光素子は、放熱体に固定された基板に取り付けられており、前記基板は、発光素子と放熱体を伝熱的に接続可能に構成されていることが好ましい。また、前記放熱体の軸方向には、電線経路が貫通しており、この電線経路には、前記電源ユニットと発光素子とを電気的に接続する電線が通過していることが好ましい。これにより、照明ユニットは、放熱体が殻部材に内接している構造と組立ての容易性を保ったまま省スペースな配線構造を実現可能となる。さらに、前記基板にも、前記放熱体の電線経路に連通する電線経路が貫通していることが好ましく、この結果、放熱体と基板との軸線を容易に一致可能となる。 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. In order to achieve this object, 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. In the lighting devices arranged to face each other, it is preferable that 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. It is preferable that 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. Further, it is preferable that 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. As a result, 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. Further, it is preferable that 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.
　また、前記集光レンズには、前記放熱体または前記基板に当接可能な脚部が設けられていることが好ましい。これにより、集光レンズと、放熱体または基板との距離すなわち集光レンズと発光素子との距離が常時一定に保持可能となる。さらに、前記殻部材の軸線方向には、殻部材の一端側に開口する小径部と、この小径部に連通する大径部とからなる貫通孔が形成されており、前記集光レンズは、小径部と大径部の境界部分に当接する円板部と、この円板部の一端側に形成された球面部とを有していることが好ましい。これにより、集光レンズの円板部を殻部材の段部に当接させて固定可能となる。しかも、前記集光レンズの円板部には、前記球面部を囲むようにバッファが形成されていることが好ましい。また、支持ユニットは、中空の弾性チューブと、この弾性チューブに挿通され、前記電源ユニットと照明ユニットを電気的に接続する電線と、前記弾性チューブに挿通される金属線とを備えており、前記金属線は、人力で湾曲可能かつ、照明ユニットの重さで湾曲しない所定の太さで構成されていることが好ましい。さらに、前記支持ユニットの金属線の端部は、前記放熱体に挿入されていることが好ましい。このため、照明ユニットと、支持ユニットとの接続部分で折れることが防止される。しかも、前記殻部材は、生体適合性を有する金属部材で構成されていることが好ましい。その上、前記集光レンズは、耐ガンマ線グレードのポリカーボネートで構成されていることが好ましい。 Further, it is preferable that the condenser lens is provided with a leg portion that can come into contact with the heat radiating body or the substrate. As a result, 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. Further, in the axial direction of the shell member, 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. As a result, the disk portion of the condenser lens can be brought into contact with the step portion of the shell member and fixed. Moreover, it is preferable that a buffer is formed in the disk portion of the condenser lens so as to surround the spherical surface portion. Further, 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. Therefore, it is prevented from breaking at the connecting portion between the lighting unit and the support unit. Moreover, the shell member is preferably made of a biocompatible metal member. Moreover, the condenser lens is preferably made of gamma ray resistant grade polycarbonate.
　本発明によれば、発光素子を支持する放熱体が殻部材の貫通孔に内接して設けられているため、放熱体から殻部材へ熱が伝達され易く、照明ユニット全体での放熱が可能となる。このため、長時間連続使用した際においても発光素子が高温になることが抑えられ、発光素子の劣化を防止可能等の利点がある。結果、照射面で１０，０００ルクス以上の照度を長期間確保することが可能になる等の利点がある。同時に、放熱体が殻部材に内接しているため、放熱体を殻部材と同軸上に容易に配置可能となる等の利点がある。また、発光素子が基板に支持されていることおよび、その基板と放熱体とに電線経路が貫通しているため、発光素子を集光レンズと同軸上に容易に設置可能となる等の利点がある。さらに、基板は、発光素子と放熱体とを伝熱的に接続するよう構成されているため、発光素子と放熱体の間に基板を取り付けたにもかかわらず上述の放熱性能を維持可能になる等の利点がある。また、放熱体に電線経路が貫通していることによる、省スペースな配線構造により、前述の放熱性能と照明ユニットの省スペース化の両立が可能等の利点がある。これら効果により、照射面で１０，０００ルクス以上の照度を長期間維持可能かつ、術部付近に設置されても術者の邪魔になりにくい省スペースの照明装置が容易に組立可能となる等の利点がある。 According to the present invention, since 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. At the same time, since 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. In addition, since 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. Further, since 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. Further, since the electric wire path penetrates the heat radiating body, 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.
　また、集光レンズの脚部により集光レンズと発光素子との距離が常時一定であるため、所望の照明位置を的確に照らすことが可能となる等の利点がある。また、集光レンズの円板部を殻部材の段部に当接させて固定する構成により、殻部材に対する集光レンズの傾斜が防止されるため、極めて容易に組立が可能となる等の利点がある。さらに、集光レンズに形成されたバッファと殻部材の間にシーリング材を充填することにより、集光レンズと殻部材との間の気密性を向上させることができる等の利点がある。また、支持ユニットが可撓性と形状維持機能とを有するため、照明ユニットを所望の位置に配置し、照射可能となる等の利点がある。さらに、前記支持ユニットの金属線の一端が前記放熱体の他端に挿入されているため、照明ユニットと支持ユニットとの接続部で折れることが防止される等の利点がある。これらにより、照明ユニットの重さで照射範囲が変更されることを防止可能等の利点がある。また、殻部材は、生体適合性を有する金属部材で構成されており、殻部材と人体との接触時、金属アレルギー等を引き起こす危険性がないため、手術室等人体と接触する可能性を有する箇所でも使用可能となる等の利点がある。さらに、集光レンズがガンマ線を照射されても変色しないため、照明装置に対してガンマ線滅菌が可能となる等の利点がある。 Further, since 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. Further, 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. Further, since 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. In addition, 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. There are advantages such as being able to be used in places. Further, since 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.
　また、支持ユニットが可撓性と形状維持機能とを有するため、照明ユニットを所望の位置に配置し、照射可能となる等の利点がある。さらに、前記支持ユニットの金属線の一端が前記放熱体の他端に挿入されているため、照明ユニットと支持ユニットとの接続部で折れることが防止される等の利点がある。これらにより、照明ユニットの重さで照射範囲が変更されることを防止可能等の利点がある。しかも、放熱体に電線経路が貫通していることによる、省スペースな配線構造により、前述の放熱性能と照明ユニットの省スペース化の両立が可能となる。このため、術部付近に照明ユニットを設置可能等の利点がある。また、殻部材は、生体適合性を有する金属部材で構成されており、殻部材と人体との接触時、金属アレルギー等を引き起こす危険性がないため、手術室等人体と接触する可能性を有する箇所でも使用可能となる等の利点がある。さらに、集光レンズがガンマ線を照射されても変色しないため、照明装置に対してガンマ線滅菌が可能となる等の利点がある。 Further, since 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. In addition, 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. There are advantages such as being able to be used in places. Further, since 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.
本発明に係る照明装置の概略説明図Schematic diagram of the lighting device according to the present invention 本発明に係る照明ユニットの構造を示す要部拡大一部切欠断面図Enlarged partial notched cross-sectional view of the main part showing the structure of the lighting unit according to the present invention. 本発明に係る照明ユニットの構造を示す要部拡大一部切欠き断面斜視図Enlarged partial notched cross-sectional perspective view showing the structure of the lighting unit according to the present invention. 本発明に係る照明ユニットの構造を示す図２の要部拡大Ａ－Ａ線断面図Enlarged cross-sectional view of the main part of FIG. 2 showing the structure of the lighting unit according to the present invention. 本発明に係る照明ユニットの構造を示す図２の要部拡大Ｂ－Ｂ線断面図Enlarged BB line cross-sectional view of the main part of FIG. 2 showing the structure of the lighting unit according to the present invention.
　以下、本発明の実施の形態を図面に基づき説明する。図１ないし図４において１は照明装置であり、この照明装置１は、支持ユニット２と、この支持ユニット２の一端に支持され、所定の箇所を照明可能な照明ユニット３と、前記支持ユニット２の他端が接続された電源ユニット４とを備える。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIGS. 1 to 4, 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.
　前記支持ユニット２は、図２に示すように長手方向に延びる中空の弾性チューブ２１を備えており、この弾性チューブ２１には、電線２２，２２および銅線２３が挿通している。この電線２２，２２および銅線２３は、弾性チューブ２１の一端から所定の寸法突出しており、この電線２２，２２および銅線２３の突出部分は、前記照明ユニット３内に挿入されている。また、電線２２，２２は、導体を絶縁性の皮膜で被覆した一般的なものであり、この電線２２，２２の他端には、受電コネクタ２４が接続されている。さらに、銅線２３は、照明ユニット３および支持ユニット２の自重で湾曲せず、なおかつ人力で湾曲させることが可能な太さに設定されている。このため、支持ユニット２は、この銅線２３により外力により変形する可撓性と、外力を除いても任意の形状を維持する形状維持機能を有する。 As shown in FIG. 2, 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. Further, 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. Further, 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.
　前記照明ユニット３は、図３に示すように軸方向に貫通孔３２が形成された中空円筒状の殻部材３１を備えており、この殻部材３１の貫通孔３２は、図示しない被照射対象側（以下、一端側という）に開口する小径部３２ａと、この小径部３２ａに連続し、前記支持ユニット２側（以下、他端側という）に開口する大径部３２ｂとから構成されている。この大径部３２ｂは、その穴径が前記小径部３２ａの穴径より大きく構成されており、これにより、貫通孔３２には小径部３２ａと大径部３２ｂとの境界部分に段部３２ｃが形成されている。この殻部材３１の一端には、殻部材３１の開口部を封鎖する集光レンズ３３が装着されている。この集光レンズ３３は、貫通孔３２の小径部３２ａより小なる直径の球面部３３ａと、この球面部３３ａと一体に形成され、前記小径部３２ａより大なる直径の円板部３３ｂとを一体成形して成る平凸レンズであり、この集光レンズ３３は、球面部３３ａを外方に向け、円板部３３ｂが貫通孔３２の段部３２ｃに当接している。この円板部３３ｂと段部３２ｃとの間は、接着剤等で気密に接着されている。また、前記円板部３３ｂの球面部３３ａが形成される面には、環状凸部３３ｄが一体形成されている。この環状凸部３３ｄは、前記球面部３３ａと円板部３３ｂとの境界部分より大なる直径かつ殻部材３１の貫通孔３２の小径部３２ａより小なる直径に構成されており、この環状凸部３３ｄと小径部３２ａとの隙間には、全周に渡って接着剤やシーリング剤（図示せず）が充填されている。一方、前記円板部３３ｂの他端側の面には、殻部材３１の軸線と平行に延びる２本の脚部３３ｃ，３３ｃが一体に形成されている。この脚部３３ｃ，３３ｃは、後述する発光素子３６と接触しないよう所定の幅を開けて形成されており、その軸方向の寸法（脚部３３ｃ，３３ｃの長さ）は、集光レンズ３３の屈折率等に基づいて決定されている。すなわち、発光素子３６が発する光の照度が有効照射面（少なくとも１０，０００ルクスの照度を確保できる面）において均一になり、かつ当該有効照射面が可能な限り広くなるよう設定してある。これにより、円板部３３ｂと発光素子３６との間には空気層が形成され、両者が接触しないように構成されている。 As shown in FIG. 3, 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. Further, an 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. On the other hand, on the other end side surface of the disk portion 33b, 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.
　前記貫通孔３２の大径部３２ｂには、この大径部３２ｂの穴径と同径に形成された略円柱状の放熱体３４が内接して挿入されている。この放熱体３４の一端には、略円板形状の基板３５が同心上に固定されており、放熱体３４は、この基板３５が前記集光レンズ３３の脚部３３ｃ，３３ｃに当接するよう殻部材３１内に固定されている。基板３５は、その直径が放熱体３４の直径より若干小さく構成された略円板状部材であり、この基板３５の集光レンズ３３と対向する面（以下、表面という）には、光源である発光素子３６が固定されている。このように、脚部３３ｃ，３３ｃと基板３５と当接することにより、発光素子３６と集光レンズ３３の円板部３３ｂとの距離が決定される。また、放熱体３４および基板３５には、その軸方向に溝状の電線経路３４ｂ，３４ｂが貫通形成されており、この電線経路３４ｂ，３４ｂには、前記支持ユニット２の電線２２，２２が挿通されている。この電線経路３４ｂ，３４ｂを通過した前記電線２２，２２の一端は、基板３５に接続されている。さらに、前記放熱体３４の他端部には、図２に示すように前記支持ユニット２の銅線２３とほぼ同径の挿入孔３４ａが形成されており、この挿入孔３４ａには、銅線２３の一端部が挿入されている。しかも、放熱体３４と殻部材３１とは、接着剤により固定されており、殻部材３１と支持ユニット２の弾性チューブ２１とは、収縮チューブ３７により固定されている。この収縮チューブ３７により、支持ユニット２と照明ユニット３との連結部分の気密性が保たれるため、照明ユニット３および支持ユニット２内に血液等が侵入することが防止されている。なお、放熱体３４は、その体積が前記発光素子３６よりも遙かに大きく構成されており、これにより放熱体３４は、発光素子３６の発熱量に対して十分な熱容量を持つように構成されている。 A substantially cylindrical radiator body 34 formed to have the same diameter as the hole diameter of the large diameter portion 32b is inserted inscribed in the large diameter portion 32b of the through hole 32. 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. In this way, 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. Further, 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. 2, 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. Moreover, 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.
　前記基板３５には、導電パターンで成る接続部３５ａ，３５ａがプリントされており、この接続部３５ａ，３５ａには前記発光素子３６がはんだ付け等で接続されている。これにより発光素子３６は、集光レンズ３３の同心上に位置決めされるよう構成されている。この接続部３５ａ，３５ａには、前記電線経路３４ｂ，３４ｂを通過した電線２２，２２がはんだ付け等により接続されており、これにより、発光素子３６は、前記支持ユニット２と電気的に接続される。また、基板３５の裏面には、これも導電パターンで成る放熱部３５ｂ，３５ｂがプリントされており、この放熱部３５ｂ，３５ｂは、基板３５の表面から裏面へ貫通形成された導電性のスルーホール（図示せず）により、前記接続部３５ａ，３５ａと電気的および伝熱的に連続している。この放熱部３５ｂ，３５ｂは、図５に示すように基板３５の裏面ほぼ全体に広がる形態を成す。さらに、基板３５は、放熱部３５ｂ，３５ｂを含む裏面全面に塗布された接着剤により、放熱体３４に接着されている。この接着剤は、絶縁性と熱伝導性を兼ね備えたものであり、この接着剤を介して基板３５と放熱体３４が絶縁されるとともに、後述する発光素子３６の発光時の熱を基板３５から放熱体３４へ放熱することが可能となる。 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. As a result, 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. NS. Further, 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.
　なお、前記殻部材３１は、生態適合性を有する金属材料の一例であるステンレス鋼またはチタン合金等から構成されており、前記放熱体３４は、軽量、安価かつ比較的熱伝導率が高い金属材料の一例であるアルミニウム合金等から構成されている。また、前記集光レンズ３３は、ガンマ線を照射された際に変色や劣化が少ない、耐ガンマ線グレードのポリカーボネート等から構成されている。さらに、前記発光素子３６は、表面実装型のＬＥＤ（発光ダイオード）であり、太陽光に近い光を発する白色発光ＬＥＤである。具体的には、光の色を表す色温度が５０００～６５００Ｋの範囲内で、太陽光の再現率を表す平均演色評価数Ｒａが９５以上のものが好ましく、特に赤色の再現率を表す特殊演色評価数Ｒ９が９０以上のものが好ましい。 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, and 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. Further, 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. Further, 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. Specifically, it is preferable that 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.
　前記電源ユニット４は、直接外部の商用電源（以下、電源という）の電源コンセント（図示せず、以下、コンセントという）に接続可能な電源プラグ（図示せず）を備える電源接続部４１を有しており、この電源接続部４１は、電源から送られてきた交流電流を電圧が一定の直流電流に変換して電気回路４２に送電している。この電気回路４２は、電源接続部４１から送られてきた直流電流の値を所定の値に変換する定流回路４２ａを備えており、この定流回路４２ａには、前記発光素子３６の照度を調節可能な調光回路４２ｂが接続されている。この調光回路４２ｂは、可変抵抗等により発光素子３６に供給される電流値を調節するよう構成された回路であり、可変抵抗の抵抗値を設定したり操作したりするための調光手段４２ｃが接続されていている。このように構成された調光回路４２ｂには、前記支持ユニット２の受電コネクタ２４に接続可能な給電コネクタ４３に接続されている。この給電コネクタ４３は、受電コネクタ２４と着脱可能に構成されており、これらコネクタ４３，２４の接続により、電源ユニット４と支持ユニット２とが電気的に接続される。なお、調光回路４２ｂおよび調光手段４２ｃは、発光素子３６に供給される電流のパルス幅を調節するよう構成された回路および当該パルス幅を操作する手段等、他の構成であっても何ら問題ない。 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.
　次に、上記のように構成された照明装置１の作用を説明する。
　電源に接続された前記電源ユニット４を被施術患者の近傍に設置し、この電源ユニット４の給電コネクタ４３に、支持ユニット２の受電コネクタ２４を接続する。この時、電源から前記電源接続部４１に供給された交流電流は、一定電圧の直流電流に変換されて電気回路４２に伝えられる。この電気回路４２に伝えられた直流電流は、定流回路４２ａにより発光素子３６に適した所定の電流に変換され、支持ユニット２に供給される。この発光素子３６に適するように変換された電気は、支持ユニット２の電線２２，２２から基板３５を通じて発光素子３６まで供給され、これにより発光素子３６が発光する。また、この発光素子３６の発光時において、基板３５と放熱体３４との間が絶縁性を有する接着剤により絶縁されているため、短絡・漏電が防止されている。さらに、電源ユニット４の調光回路４２ｂおよびこの調光回路４２ｂに接続される調光手段４２ｃにより、発光素子３６に供給される電流値を調節することが可能であるため、発光素子３６の照度を任意に変化させることが可能となる。 Next, the operation of the lighting device 1 configured as described above will be described.
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. At this time, 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.
　発光素子３６が発した光は、照明ユニット３の集光レンズ３３を介して所定範囲の照射面を形成する。この時、基板３５は、殻部材３１に固定されている放熱体３４と集光レンズ３３の脚部３３ｃ，３３ｃとに挟設されているため、集光レンズ３３に対して位置ずれを起こしにくい。同様にこの基板３５に接続されている発光素子３６も常時所定の位置に位置決め固定されているため、振動等により発光素子３６が集光レンズ３３に対して位置ずれを起こしたり、振動したりするのを防止可能である。この結果、本照明装置１においては、光の有効照射面、照射範囲および集光レンズ３３による集光精度をいずれも均一に保ち、所望の照明位置を的確に照らすことが可能となっている。 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. At this time, since 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. .. Similarly, since 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. As a result, in the present illuminating device 1, 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.
　照明ユニット３で術部を照明する場合には、照射面の照度が１０，０００ルクスになる光が必要なことから、発光素子３６には比較的大きな電力がかけられる。これにより、患部・術部を良好に照明することができる。この術部の照明時において、発光素子３６は太陽光に近い光を放つ白色発光ＬＥＤであるため、術部周辺の色を鮮明に再現でき、臓器、血液等の色をより正確に再現することが可能であり、患部の識別等を補助することが可能である。 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. When the surgical site is illuminated, 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.
　発光素子３６は、上述のように大きな電力が印加されることにより、その特性上比較的従来よりも大きな熱を帯びることとなるが、この熱は発光素子３６に接続されている基板３５を介して放熱体３４に吸収されるため、発光素子３６付近の過度の発熱が防止される。この時、基板３５は、発光素子３６が接続される接続部３５ａ，３５ａと、放熱体３４に接着剤を介して接続されている放熱部３５ｂ，３５ｂとが伝熱的に連続する構造であるため、発光素子３６と放熱体３４とを伝熱的に接続する。結果、発光素子３６からの熱を円滑に放熱体３４に伝達可能である。また、放熱体３４が発光素子３６に対して十分に大きな容量を持つものとして構成されているため、長時間の使用においても、発光素子３６は、放熱体３４に放熱し続けることが可能となり、発光素子３６が自身の発する熱により、劣化、破損することが防止される。 When a large amount of electric power is applied to the light emitting element 36 as described above, 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. At this time, 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. As a result, the heat from the light emitting element 36 can be smoothly transferred to the heat radiating body 34. Further, since 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.
　上述のように放熱体３４まで伝達された熱は、放熱体３４の一端側から他端側に広がりながら放熱体３４が内接している殻部材３１に伝達され、外部に放散される。このため、照明ユニット３全体で放熱可能となる。この時、基板３５の直径が放熱体３４の直径より小さく構成され、基板３５と殻部材３１との間には隙間（空気層）が存在するため、基板３５から殻部材３１に熱が伝達されにくい。これらにより、発光素子３６からの熱のほとんどが放熱体３４に伝達されるため、照明ユニット３の外表面の何処か一点が局所的に高温化するということが防止される。また、放熱体３４に伝達された熱の一部は、放熱体３４に挿入された銅線２３を介して支持ユニット２にも伝達されるため、照明ユニット３の外表面が高温化しにくい。さらに、集光レンズ３３の脚部３３ｃ，３３ｃが基板３５に当接していることにより、基板３５に伝達された熱の一部は、集光レンズ３３にも伝達されることとなる。しかし、集光レンズ３３の円板部３３ｂと発光素子３６との間に空気層が形成され、発光素子３６から発せられる熱が直接円板部３３ｂに伝達されにくい構造であるため、脚部３３ｃ，３３ｃから伝達される熱量より球面部３３ａが外気に放熱する熱量の方が大きくなる。そのため、集光レンズ３３が高温になることが防止されている。これらにより、照明ユニット３の表面温度は、常時摂氏４２度未満に維持されることが確認されており、これにより、照明ユニット３および支持ユニット２が被施術患者に接触した場合にも、熱傷等を引き起こす危険がない。以上のような放熱効果を有するため、本発明の照明装置１においては、発光素子３６に上記のように大きな電流を長時間印加することが可能となる。この結果、長時間の手術においても、高照度に照明し続けることが可能となる。 As described above, 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. At this time, since 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. As a result, 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. Further, since a part of the heat transferred to the heat radiating body 34 is also transferred to the support unit 2 via the copper wire 23 inserted in the heat radiating body 34, 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. However, since an air layer is formed between the disk portion 33b of the condensing lens 33 and the light emitting element 36, the heat generated from the light emitting element 36 is difficult to be directly transferred to the disk portion 33b, so that the leg portion 33c , The amount of heat dissipated by the spherical portion 33a to the outside air is larger than the amount of heat transferred from 33c. Therefore, it is prevented that the condenser lens 33 becomes hot. As a result, it has been confirmed that the surface temperature of the lighting unit 3 is always maintained at less than 42 degrees Celsius, and as a result, even when the lighting unit 3 and the support unit 2 come into contact with the patient to be treated, burns, etc. There is no danger of causing. 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.
　照明ユニット３で術部を照明する場合には、支持ユニット２を湾曲・屈曲させることにより、所望の位置に照明ユニット３を配置することが可能である。よって、照明すべき術部が転々と変わる場合や、患者の体勢が変更された際などにおいても、その都度術者にとって都合の良い最適な位置、向きに照明ユニット３を自在に配置し、照明したい位置を正確に照らすことが可能となる。このような術部照射時、殻部材３１が生体適合性を有するステンレス鋼等で構成されているため、被施術患者と照明ユニット３の接触時に金属アレルギー等を引き起こすことがない。このため、手術室内でも安全に使用可能となる。また、照明ユニット３の放熱体３４がアルミニウム合金等で構成されているため、放熱体３４全体が銅で構成される場合に比して照明ユニット３を軽量化でき、支持ユニット２を極力小型化することが可能となる。さらに、放熱体３４に支持ユニット２の銅線２３を挿入した構成であるため、照明ユニット３と支持ユニット２との接続部分で折れること等が防止される。よって、照明ユニット３の重さで、支持ユニット２が照明中に湾曲してしまい、照射範囲が変更されることを防止することが可能になるとともに、照明ユニット３を支える支持ユニット２を極力小型化することが可能となる。しかも、前記電線経路３４ｂ，３４ｂに支持ユニット２の電線２２，２２が収容されるため、放熱体３４が殻部材３１に内接し、なおかつ発光素子３６と電源ユニット４とが電気的に接続可能となる。この結果、上述の放熱性能を維持したまま省スペースに配線可能となるため、照明ユニット３を極力小さくできる。この結果、術部付近に設置しても術者の邪魔にならない等の利点がある。 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. Further, since 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. Moreover, since the electric wires 22 and 22 of the support unit 2 are housed in the electric wire paths 34b and 34b, 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. As a result, 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. As a result, there is an advantage that it does not interfere with the operator even if it is installed near the surgical site.
　本照明装置１は、上述のように照明ユニット３が極力小さく構成されているが、放熱体３４および基板３５に形成された電線経路３４ｂ，３４ｂを一致させることにより、基板３５を放熱体３４と同軸上に容易に固定可能となる。また、基板３５の接続部３５ａ，３５ａが発光素子３６を基板３５の中心に配置するよう構成されているため、基板３５と同軸上に発光素子３６を容易に設置可能となる。このため、放熱体３４と基板３５と発光素子３６とが同軸上に固定される。このように基板３５および発光素子３６を同軸上に支持する放熱体３４を殻部材３１の貫通孔３２に内接させて固定することにより、殻部材３１に固定された集光レンズ３３と発光素子３６とが同軸上に容易かつ高精度に設置可能となる。この結果、上述のように優れた集光性能を有する照明ユニット３を容易に組立可能となる。さらに、集光レンズ３３の脚部３３ｃ，３３ｃに基板３５が当接するよう構成されているため、集光レンズ３３と発光素子３６との距離を組立時に改めて調節することなく、照射面が広くかつ照射面内に明暗の差が生じないような絶妙な位置を容易に設定可能となり、組み立て効率が向上する。しかも、貫通孔３２の段部３２ｃに集光レンズ３３の円板部３３ｂを当接させ、固定するよう構成されているため、殻部材３１の軸線に対して集光レンズ３３が傾き難く、より容易に組立可能な構成となる。このように、集光レンズ３３を殻部材３１に固定する際、円板部３３ｂと段部３２ｃとの間に塗布される接着材の一部が球面部３３ａ側に押し出されることとなるが、この押し出された接着剤は、殻部材３１と環状凸部３３ｄとの隙間に蓄積される。このように環状凸部３３ｄが防護壁の役割を果たすため、球面部３３ａに接着剤が付着し、集光レンズ３３の集光性能が低下することが防止される。その上、環状凸部３３ｄと小径部３２ａとの隙間に接着剤等を充填することにより、集光レンズ３３と殻部材３１との間の気密性を確実なものともできる。 In this lighting device 1, 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. In this way, 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. As a result, the lighting unit 3 having excellent light collecting performance as described above can be easily assembled. Further, since 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. It is possible to easily set an exquisite position in the irradiation surface so that there is no difference between light and dark, and the assembly efficiency is improved. Moreover, since the disc portion 33b of 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. Since the 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.
　この照明装置１は、使用後および保管時において、前述のように支持ユニット２と電源ユニット４とが、給電コネクタ４３と受電コネクタ２４とによって着脱可能に構成されているため、術部付近に設置される支持ユニット２および照明ユニット３のみを、手術後に破棄または滅菌処理することができる。これにより、術部付近で用いる照明ユニット３を常に清潔に保ちつつ、比較的構成が複雑で高価な電源ユニット４については再使用が可能となる。また、集光レンズ３３がガンマ線により変色しない耐ガンマ線グレードのポリカーボネートで構成されているため、照明ユニット３および支持ユニット２に対してガンマ線滅菌を行うことが可能となる。さらに、照明時に術部付近に設置される照明ユニット３の殻部材３１は、一端側では集光レンズ３３が気密に接着され、他端側では収縮チューブ３７によって気密性が確保されているため、血液等が支持ユニット２や照明ユニット３の内部に侵入せず、これらによる汚染、短絡等が防止される。 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. Further, 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.
　なお、本発明に係る照明装置１は、前述したものに限定するものではなく、発明の趣旨を逸脱しない範囲で種々の変更が可能である。例えば、殻部材３１は、外周面全体を前記収縮チューブ３７に被覆されていたり、その一端面に絶縁性の樹脂等が塗布されていたり等、外部に露出している面が絶縁性部材で覆われていてもよい。これにより、万一、電線２２，２２の導体と殻部材３１とが接触してもこれによる短絡、漏電等が防止される。また、支持ユニット２の電線２２，２２は、弾性チューブ２１内に内包される太めの電線（図示せず）と、照明ユニット３の電線経路３４ｂ，３４ｂを通過する細めの電線（図示せず）との２本からなるものでもよい。これにより、放熱体３４の電線経路３４ｂ，３４ｂを細くできるため、放熱体３４の体積および放熱体３４と殻部材３１との接触面積等が増加し、より放熱性能が上昇する等の利点がある。さらに、支持ユニット２の銅線２３は、金属線の一例であり、他の金属から構成された金属線であっても良い。しかも、基板３５の代わりとして放熱体３４の一端面に金属箔が貼付されており、この金属箔に発光素子３６および電源ユニット４が接続される構造であってもよい。この場合、前記集光レンズ３３の脚部３３ｃ，３３ｃは、放熱体３４の一端面と当接しており、円板部３３ｂと集光レンズ３３との間隔を最適なものに維持する。もちろんこの場合、銅箔は、前記基板３５と同様の絶縁性の接着剤により放熱体３４に接着されており、漏電等が防止されることが好ましい。また、前記環状凸部３３ｄは、前述のように集光レンズ３３と殻部材３１との間に接着剤等を蓄積するバッファの一例であり、凹部や段差部等他の形状であっても何ら問題無い。 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. For example, 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. Further, 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. As a result, 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. .. Further, 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. Moreover, 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. In this case, 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. Of course, in this case, it is preferable that 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. Further, the 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.
　１　　　照明装置
　２　　　支持ユニット
　２１　　弾性チューブ
　２２　　電線
　２３　　銅線
　３　　　照明ユニット
　３１　　殻部材
　３２　　貫通孔
　３２ａ　小径部
　３２ｂ　大径部
　３２ｃ　段部
　３３　　集光レンズ
　３３ａ　球面部
　３３ｂ　円板部
　３３ｃ　脚部
　３３ｄ　環状凸部
　３４　　放熱体
　３４ｂ　電線経路
　３５　　基板
　３６　　発光素子
　３７　　収縮チューブ
　４　　　電源ユニット　 1 Lighting device 2 Support unit 21 Elastic tube 22 Electric wire 23 Copper wire 3 Lighting unit 31 Shell member 32 Through hole 32a Small diameter part 32b Large diameter part 32c Step part 33 Condensing lens 33a Spherical part 33b Disk part 33c Leg part 33d Circular convex Part 34 Heat radiator 34b Electric wire path 35 Substrate 36 Light emitting element 37 Shrink tube 4 Power supply unit

Claims (11)

  1. 　所定の箇所を照らす照明ユニットと、この照明ユニットを一端に備える支持ユニットと、この支持ユニットの他端を接続し、前記照明ユニットへ電力を供給する電源ユニットとを具備し、
    　前記照明ユニットは、少なくとも一方が開口した中空の殻部材と、前記殻部材の開口端を封鎖して設けられた集光レンズと、この集光レンズとの間に空隙を持つよう前記殻部材に内包され、前記電源ユニットに電気的に接続されている発光素子と、この発光素子を支持する放熱体とを備え、
    　前記発光素子は、その発光面を前記集光レンズに対向して配置されている照明装置において、
    　前記放熱体は、殻部材に内接していることを特徴とする照明装置。     A lighting unit that illuminates a predetermined location, a support unit having the lighting unit at one end, and a power supply unit that connects the other end of the support unit and supplies electric power to the lighting unit are provided.
    The lighting unit is provided in the shell member so as to have a gap between a hollow shell member having at least one opening, a condensing lens provided by blocking the open end of the shell member, and the condensing lens. It includes a light emitting element that is included and electrically connected to the power supply unit, and a radiator that supports the light emitting element.
    The light emitting element is used in a lighting device in which the light emitting surface is arranged so as to face the condensing lens.
    The heat radiating body is a lighting device characterized in that it is inscribed in a shell member.
  2. 　前記発光素子は、放熱体に固定された基板に取り付けられており、
    　前記基板は、発光素子と放熱体を伝熱的に接続可能に構成されていることを特徴とする請求項１に記載の照明装置。     The light emitting element is attached to a substrate fixed to a heat radiating body.
    The lighting device according to claim 1, wherein the substrate is configured so that a light emitting element and a radiator can be heat-transferredly connected.
  3. 　前記放熱体の軸方向には、電線経路が貫通しており、この電線経路には、前記電源ユニットと発光素子とを電気的に接続する電線が通過していることを特徴とする請求項１または請求項２記載の照明装置。 Claim 1 is characterized in that 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. Alternatively, the lighting device according to claim 2.
  4. 　前記基板にも、前記放熱体の電線経路に連通する電線経路が貫通していることを特徴とする請求項３に記載の照明装置。 The lighting device according to claim 3, wherein an electric wire path communicating with the electric wire path of the radiator also penetrates the substrate.
  5. 　前記集光レンズには、前記放熱体または前記基板に当接可能な脚部が設けられていることを特徴とする請求項１ないし請求項４のいずれかに記載の照明装置。 The lighting device according to any one of claims 1 to 4, wherein the condensing lens is provided with a leg portion that can come into contact with the heat radiating body or the substrate.
  6. 　前記殻部材の軸線方向には、殻部材の一端側に開口する小径部と、この小径部に連通する大径部とからなる貫通孔が形成されており、
    　前記集光レンズは、小径部と大径部の境界部分に当接する円板部と、この円板部の一端側に形成された球面部とを有していることを特徴とする請求項１ないし請求項５のいずれかに記載の照明装置。     A through hole is formed in the axial direction of the shell member, which is composed of 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.
    Claim 1 is characterized in that the condenser lens has a disk portion that abuts on a boundary portion between a small diameter portion and a large diameter portion, and a spherical portion formed on one end side of the disk portion. The lighting device according to any one of claims 5.
  7. 　前記集光レンズの円板部には、前記球面部を囲むようにバッファが形成されていることを特徴とする請求項６に記載の照明装置。 The lighting device according to claim 6, wherein a buffer is formed in the disk portion of the condenser lens so as to surround the spherical surface portion.
  8. 　支持ユニットは、中空の弾性チューブと、この弾性チューブに挿通され、前記電源ユニットと照明ユニットを電気的に接続する電線と、前記弾性チューブに挿通される金属線とを備えており、前記金属線は、人力で湾曲可能かつ、照明ユニットの重さで湾曲しない所定の太さで構成されていることを特徴とする請求項１ないし請求項７のいずれかに記載の照明装置。 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 lighting device according to any one of claims 1 to 7, wherein is configured with a predetermined thickness that can be bent by human power and does not bend by the weight of the lighting unit.
  9. 　前記支持ユニットの金属線の端部は、前記放熱体に挿入されていることを特徴とする請求項８に記載の照明装置。 The lighting device according to claim 8, wherein the end of the metal wire of the support unit is inserted into the heat radiating body.
  10. 　前記殻部材は、生体適合性を有する金属部材で構成されていることを特徴とする請求項１ないし請求項９のいずれかに記載の照明装置。 The lighting device according to any one of claims 1 to 9, wherein the shell member is made of a biocompatible metal member.
  11. 　前記集光レンズは、耐ガンマ線グレードのポリカーボネートで構成されていることを特徴とする請求項１ないし請求項１０のいずれかに記載の照明装置。 The lighting device according to any one of claims 1 to 10, wherein the condensing lens is made of gamma-ray resistant grade polycarbonate.
PCT/JP2021/015066 2020-04-30 2021-04-09 Illumination device WO2021220779A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008269938A (en) * 2007-04-19 2008-11-06 Hamamatsu Photonics Kk Light irradiation head and device
JP2015002032A (en) * 2013-06-14 2015-01-05 株式会社朝日ラバー Translucent waterproof cover lens
JP2018527959A (en) * 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 Lighting device
WO2018235436A1 (en) * 2017-06-22 2018-12-27 デンカ株式会社 Laminate comprising thermoplastic engineering plastic layer and method for producing same
JP2019000476A (en) * 2017-06-16 2019-01-10 日東精工株式会社 Luminaire

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008269938A (en) * 2007-04-19 2008-11-06 Hamamatsu Photonics Kk Light irradiation head and device
JP2015002032A (en) * 2013-06-14 2015-01-05 株式会社朝日ラバー Translucent waterproof cover lens
JP2018527959A (en) * 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 Lighting device
JP2019000476A (en) * 2017-06-16 2019-01-10 日東精工株式会社 Luminaire
WO2018235436A1 (en) * 2017-06-22 2018-12-27 デンカ株式会社 Laminate comprising thermoplastic engineering plastic layer and method for producing same

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