JP2015019886A - Head belt lamp type shadowless lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact and lightweight head belt lamp type shadowless lamp capable of suppressing temperature rise of a light emission part and a circuit board.SOLUTION: A head belt lamp type shadowless lamp 1 includes: a light emission part 3; and a mounting part 5 for mounting the light emission part 3 on the head of a doctor A. The light emission part 3 includes: a plurality of light-emitting diodes 31; a circuit board 32 mounted with the light-emitting diodes 31; heat sinks 33 fixed to a face opposite to a face mounted with the light-emitting diodes 31 of the circuit board 32; heat-radiating electric fans 34 disposed in the rear of the heat sinks 33; lenses 35 disposed in front of the light-emitting diodes 31; and a case 36 storing the light-emitting diodes 31, the circuit board 32, the heat sinks 33, the electric fans 34, and the lenses 35. Vent holes 361a, 33f for making air sucked from intake holes 32 of the case 36 pass are formed in the heat sinks 33 and the circuit board 32.

Description

  The present invention relates to a forehead lamp type surgical light that irradiates light to a surgical field, and more particularly to a forehead lamp type surgical light that enables an operation without using a conventional surgical light or auxiliary light.

  DESCRIPTION OF RELATED ART Conventionally, the illuminating device which consists of a light emission part and the fixing | fixed part for fixing a light emission part to an operator's head is known (refer the following patent document 1).

  The light emitting unit includes a plurality of white light emitting diodes, a plurality of white light emitting diode mounting substrates on which a plurality of white light emitting diodes are mounted, a plurality of red light emitting diodes, and a plurality of red light emitting diodes on which a plurality of red light emitting diodes are mounted. A mounting board, a mounting board to which these mounting boards are detachably attached, a board fixing plate to which the mounting board is fixed, a cooling fan disposed on the back side of the board fixing board, the mounting board and the mounting board described above, A case for accommodating the substrate fixing plate and the cooling fan is provided.

  The fixing portion includes a headband that surrounds the periphery of the head and a support band that reaches the other side of the headband from one side of the headband via the top of the head.

WO 2010/007785 gazette (see paragraphs 0043 to 0047, paragraph 0067, paragraph 0068, FIG. 1, FIG. 2, FIG. 3, etc.)

  In the above-described lighting device, air is sent to the light emitting diode or the like by the action of the cooling fan, and the warmed air is discharged from the exhaust hole of the case.

  In addition, since the cooling air vent hole for cooling the light emitting diode is formed in the substrate fixing plate, the cooling air is sent from the cooling fan to the light emitting diode through the air vent hole.

  Furthermore, the use of an aluminum alloy as the case material contributes to the suppression of temperature rise in the case.

  However, in the cooling structure employed in the above-described lighting device, the temperature rise of the mounting substrate on which the light emitting diode is mounted cannot be sufficiently suppressed, and thus the light intensity of the light emitting diode may be reduced.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a frame lamp type surgical light capable of suppressing the temperature rise of the light emitting portion.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a frame lamp type surgical light comprising a light emitting unit and a mounting unit for mounting the light emitting unit on a human head. A plurality of light emitting elements, a circuit board on which the light emitting elements are mounted, a heat sink fixed to a surface of the circuit board opposite to a surface on which the light emitting elements are mounted, and heat dissipation disposed behind the heat sink. A fan, a lens disposed in front of the light emitting element, a case housing the light emitting element, the circuit board, the heat sink, the fan, and the lens, and air outside the case inside the case An air intake hole is formed in the case, and a ventilation hole for allowing air sucked from the air intake hole to pass through is formed in the heat sink and the circuit board. Exhaust hole out that the formed in the casing, the front of the lens, and wherein the exposed to the outside of the case through the front portion in the window formed in the case.

  According to a second aspect of the present invention, in the frame lamp type surgical light according to the first aspect, the lens has a lens portion disposed so as to face the light emitting element, and a tray-like shape that couples the lens portions. A lens unit coupling portion, and the lenses are arranged to face the right side portion and the left side portion of the circuit board, respectively, and from the outer periphery of the tray-shaped lens unit coupling portion to the lens unit coupling portion. A notch for releasing air to the outside is formed in the lens portion coupling portion.

  According to a third aspect of the present invention, in the frame lamp type surgical light according to the first or second aspect, a guide portion for guiding the air discharged from the exhaust hole in a predetermined direction is provided in the case. It is characterized by.

  According to a fourth aspect of the present invention, in the frame lamp type surgical light according to any one of the first to third aspects, the two circuit boards are provided such that a central portion in the left-right direction of the circuit board protrudes backward. The angle between the right half and the left half of the circuit board is about 170 degrees.

  According to a fifth aspect of the present invention, in the frame lamp type surgical light according to the fourth aspect, the fans are disposed so as to be opposed to a right side portion and a left side portion of the circuit board, respectively, and the plurality of light emitting elements Is disposed on the right side of the circuit board, the remaining half of the plurality of light emitting elements is disposed on the left side of the circuit board, the intake holes are disposed on the back surface of the case, and the exhaust holes are provided. It is arrange | positioned from the side part of the said case to the said back part, and many said ventilation holes are arrange | positioned in the center part of the left-right direction of the said circuit board, It is characterized by the above-mentioned.

  According to a sixth aspect of the present invention, in the frame lamp type surgical light according to the fifth aspect, each of the two adjacent fans has a blade and a case for accommodating the blade, and A part of the outer peripheral surface of the case of one of the fans and a part of the outer peripheral surface of the case of the other of the two fans are arranged adjacent to each other with a gap therebetween, and the case of the one fan A notch is formed in a part of the outer peripheral surface of the fan and a part of the outer peripheral surface of the case of the fan to intensively supply the air sucked from the intake holes to the central portion of the circuit board.

  The invention described in claim 7 is the frame lamp type surgical light according to any one of claims 1 to 6, wherein the mounting portion includes a headband surrounding the head and one of the headbands. A support band that reaches the other side of the headband from the side of the head via the top of the head, and an intermediate part of the support band, and is disposed apart from the light emitting part and the light emitting part A first cord holding member that holds a power cord that is electrically connected to the power source unit, and a second cord holding member that is attached to the rear portion of the headband and holds the power cord. To do.

  According to this invention, the temperature rise of the light emitting part can be suppressed.

FIG. 1 is a perspective view of a frame lamp type surgical light according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the frame lamp type surgical light shown in FIG. FIG. 3 is a front view of a circuit board on which the light-emitting diodes of the frame lamp type surgical light shown in FIG. 1 are mounted. FIG. 4 is a plan view of a circuit board on which the light emitting diode shown in FIG. 3 is mounted. FIG. 5 is a front view of the circuit board of the frame lamp type surgical light shown in FIG. FIG. 6 is a front view of a lens of the frame lamp type surgical light shown in FIG. FIG. 7 is a left side view of the lens shown in FIG. FIG. 8 is a rear view of the lens shown in FIG. FIG. 9 is a front view of the case body of the case lamp type surgical light case shown in FIG. 10 is a rear view of the case main body shown in FIG. 11 is a left side view of the case body shown in FIG. 12 is a right side view of the case main body shown in FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. FIG. 14 is a front view of a cover of the case of the frame lamp type surgical light shown in FIG. 15 is a rear view of the cover shown in FIG. FIG. 16 is a bottom view of the cover shown in FIG. FIG. 17 is a front view of a seal member of the forehead lamp type surgical light shown in FIG. 18 is a side view of the seal member shown in FIG. FIG. 19 is a front view of the cord holding member of the frame lamp type surgical light shown in FIG. 20 is a side view of the cord holding member shown in FIG. 21 is a cross-sectional view taken along line XXI-XXI shown in FIG. FIG. 22 is a perspective view of a connecting member of the forehead lamp type surgical light shown in FIG. FIG. 23 is a perspective view showing a state before the connecting member shown in FIG. 22 is fixed to the mounting portion. 24 is a perspective view of a connection reinforcing member of the frame lamp type surgical light shown in FIG. FIG. 25 is a cross-sectional view of a state before the case main body and the connecting member are connected by a bolt, a nut, and a connecting reinforcing member. FIG. 26 is a diagram illustrating the light irradiation range and brightness of the light emitting unit. FIG. 27 is a conceptual diagram for explaining a use state of the frame lamp type surgical light shown in FIG. FIG. 28 is a conceptual diagram of a patient who is operated on using the forehead lamp type surgical light shown in FIG. FIG. 29 is a perspective view of the power supply unit of the frame lamp type surgical light shown in FIG. FIG. 30 is a perspective view of another example of the power supply unit of the frame lamp type surgical light shown in FIG. FIG. 31 is an enlarged view of the battery case of the power supply unit shown in FIG. FIG. 32 is a cross-sectional view of the abdominal cavity of a patient. FIG. 33 is a perspective view of a first modification of the frame lamp type surgical light shown in FIG. 34 is a rear view of the frame lamp type surgical light shown in FIG. FIG. 35 is a perspective view of a second modification of the frame lamp type surgical light shown in FIG. FIG. 36 is a perspective view of the frame lamp type surgical light shown in FIG. 35 when viewed from the rear. FIG. 37 is a perspective view of a third modification of the frame lamp type surgical light shown in FIG. FIG. 38 is a perspective view of the frame lamp type surgical light shown in FIG. 37 when viewed from the rear. FIG. 39 is a perspective view of a fourth modification of the frame lamp type surgical light shown in FIG. FIG. 40 is a perspective view of the frame lamp type surgical light shown in FIG. 39 when viewed from the rear. FIG. 41 is a conceptual diagram illustrating a usage state of the head mounted illumination device shown in FIG. 1 using the power supply unit shown in FIG. 30 as the power supply unit. FIG. 42 is a front view of a case body of a fifth modification of the frame lamp type surgical light shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The forehead lamp type surgical light 1 of this embodiment is an illuminating device that allows a doctor A to perform an operation without using a conventional operating lamp or a conventional forehead lamp. The frame lamp type surgical light 1 includes a light emitting unit 3, a mounting unit 5 for mounting the light emitting unit 3 on the head of the doctor A, and a power supply unit 107 that supplies power to the light emitting unit 3. .

  As shown in FIG. 2, the light emitting unit 3 includes a plurality of light emitting diodes (light emitting elements) 31 (see FIG. 3), a circuit board 32 on which the light emitting diodes 31 are mounted, and the light emitting diodes 31 on the circuit board 32. A heat sink 33 fixed to a surface opposite to the surface to be heated, an electric fan (fan) 34 for heat dissipation disposed behind the heat sink 33, a lens 35 disposed in front of the light emitting diode 31, a light emitting diode 31, The circuit board 32, the heat sink 33, the electric fan 34, and the case 36 (refer FIG. 1) which accommodates the lens 35 are provided. In this embodiment, one circuit board 32, two heat sinks 33, two electric fans 34, and two lenses 35 are used. As a modification, only one electric fan 34 may be used instead of two.

As shown in FIGS. 3 to 5, half of the plurality of light emitting diodes 31 are arranged on the right side portion of the circuit board 32, and the other half of the plurality of light emitting diodes 31 are arranged on the left side portion of the circuit board 32. As the light emitting diode 31, for example, 32 white light emitting diodes are used. In addition, as a light emitting element, instead of a light emitting diode, an organic EL (Electoro)
Luminescence) may be used.

  The circuit board 32 is designed to be bent in two so that the central portion of the circuit board 32 in the left-right direction LR protrudes backward. The angle θ formed by the right half and the left half of the circuit board 32 is about 170 degrees (see FIG. 4).

  As shown in FIG. 5, the circuit board 32 has a conductor pattern 32a. Except for the pad 32b of the conductor pattern 32a, the conductor pattern 32a is covered with a white insulating film 32c. A plurality of through holes 32 d are formed in the circuit board 32. The through hole 32d is a hole through which a screw (not shown) for fixing the heat sink 33 to the circuit board 32 is passed. The circuit board 32 is formed with a plurality of through holes 32e. The through hole 32 e is a hole through which a bolt (not shown) for fixing the lens 35 to the front surface of the circuit board 32 is passed. Further, the circuit board 32 is formed with a plurality of vent holes 32f. The ventilation hole 32f is a hole through which air sucked from an intake hole 361a of the case 36 described later is passed. A large number of vent holes 32f are arranged in the central portion of the circuit board 32 in the left-right direction LR. Attachment pieces 32g are formed at both ends of the circuit board 32 in the left-right direction LR. The attachment piece 32g has a through hole 32h. The vent hole 32f may be a round hole shown in FIG. 5, or may be a long hole (not shown), for example. If the holes are long, the area of the passage is widened, so the number of vent holes 32f can be reduced.

  As shown in FIG. 2, the heat sink 33 is disposed so as to face the right and left portions of the rear surface of the circuit board 32. The heat sink 33 is formed with a female screw 33a and a vent hole 33f. A screw passed through the through hole 32d of the circuit board 32 is screwed into the female screw 33a. Thereby, the heat sink 33 is fixed to the circuit board 32. The vent hole 33f is a hole through which air sucked from the intake hole 361a of the case 36 is passed. The heat sink 33 is made of aluminum, but a heat sink made of a carbon composite material having good thermal conductivity (for example, a heat radiating fin manufactured by Awa Paper Co., Ltd.) may be used. If a heat sink made of a carbon composite material is used, the frame-type surgical light can be further reduced in weight.

  The electric fans 34 are respectively arranged behind the two heat sinks 33. Two electric fans 34 adjacent to each other have a blade and a case for housing the blade. A part of the outer peripheral surface of the case of one electric fan 34 of the two electric fans 34 and a part of the outer peripheral surface of the case of the other electric fan 34 are disposed adjacent to each other via a gap. A notch 34c that intensively supplies the air sucked from the suction holes 361a to the central portion of the circuit board 32 is formed in a part of the outer peripheral surface of the case of both of the electric fans 34 that are adjacently disposed ( (See FIG. 1). However, only one notch 34c is visible in FIG.

  As shown in FIGS. 6 to 8, the lens 35 is disposed so as to face the right and left portions of the front surface of the circuit board 32. The lens 35 includes a plurality of substantially hemispherical lens portions 35a arranged in a matrix so as to face the light emitting diodes 31, and a rectangular tray-like lens portion coupling portion 35b that couples the lens portions 35a. ing. A notch 35c for allowing air to escape from the outer peripheral portion of the tray-shaped lens portion coupling portion 35b to the outside of the lens portion coupling portion 35b is formed in the lens portion coupling portion 35b. A through hole 35d is formed in the corner of the lens unit coupling part 35b. Bolts (not shown) are passed through the through holes 35d from the front of the lens 35, and the bolts passed through the through holes 35d are further passed through the through holes 32e of the circuit board 32 and through the through holes 32e (see FIG. 1). A nut (not shown) is attached to the tip of the bolt. Thereby, each lens 35 is fixed to the front surface of the circuit board 32. The material of the lens 35 is preferably a colorless and transparent chemical-resistant plastic (for example, polycarbonate, PXT (registered trademark)). Further, glass may be used as the material of the lens 35.

  As shown in FIG. 1, the case 36 includes a case main body 361 and a cover 362.

  As shown in FIGS. 9 to 13, an intake hole 361 a is formed on the back surface of the case main body 361. The intake hole 361 a is a hole for sucking air outside the case 36 into the case 36. A plurality of exhaust holes 361b are formed from the side surface of the case body 361 to the back surface. The exhaust hole 361 b is a hole for discharging the air in the case 36 to the outside of the case 36. Instead of the exhaust hole 361b, an exhaust hole 3361b (see FIG. 42) having a shape that does not discharge hot air backward (to the face) may be employed.

  A plurality of positioning pieces 361 c are formed on the inner wall surface of the case body 361. The positioning piece 361c contacts the frame portion 34a of the electric fan 34, and positions and fixes the electric fan 34 in the left-right direction LR and the up-down direction UD of the case 36.

  Support columns 361d are formed on the inner wall surfaces of both ends of the case main body 361 in the left-right direction LR. The column 361d has a female screw 361e. A screw (not shown) passed through the through hole 32h of the mounting piece 32g of the circuit board 32 is screwed into the female screw 361e. As a result, the circuit board 32 is fixed to the case body 361. A recess 361f is formed on the inner wall surface of the central portion of the case body 361 in the left-right direction LR. A hole 361g is formed in the recess 361f. A connector (not shown) is accommodated in the recess 361f. A part of this connector protrudes out of the case 36 through the hole 361g. The connector is connected to an electric wire 32i soldered to the circuit board 32 and an electric wire 34b (see FIG. 2) extending from the electric fan 34. The mating connector 120 is connected to this connector. A power cord 121 connected to a power source 107 described later is connected to the mating connector 120 (see FIG. 29).

  As shown in FIGS. 13 and 25, a pair of connecting pieces 361 j protruding toward the rear of the case 36 are formed on the outer wall surface of the back surface portion of the case main body 361. Concave portions 361k are formed on the outer surfaces of the pair of connecting pieces 361j, respectively. Further, a hole 361m is formed at the tip of the connecting piece 361j. Further, a pair of through holes 361 n are formed on the back surface of the case body 361. The through hole 361n communicates with the recess 361k. In addition, eight concave portions 361p are provided on the inner wall surface of the case main body 361.

  A heat insulating paint (not shown) is applied to the inner peripheral surface of the case body 361. Thereby, the heat of the light emitting diode 31 becomes difficult to be transmitted to the case 36, and the feeling of use of the doctor A is improved.

  In this embodiment, the case main body 361 and the cover 362 are formed of a thermoplastic elastomer having heat dissipation properties. However, the case main body 361 and the cover 362 are formed by drawing a lightweight metal aluminum plate having high thermal conductivity. You may make it form. The case 36 formed by drawing is lightweight and excellent in heat dissipation. The material of the case 36 is not limited to aluminum, but may be any lightweight metal with high thermal conductivity.

  The cover 362 has a shape like glasses and covers the front surface of the case main body 361. Two windows 362 a are formed on the front surface of the cover 362. The front surface of the lens 35 is exposed to the outside of the case 36 through the window 362a. A rectangular annular groove 362 b is formed on the back surface of the cover 362. 17 and 18 is disposed in the annular groove 362b. Eight lock pieces 362 c are formed on the peripheral portion of the back surface portion of the cover 362 and the rear end portion of the cover 362. The lock piece 362c can be elastically deformed in the thickness direction. A claw 362d (see FIG. 16) is formed at the tip of each lock piece 362c. Each claw 362d is caught in the recess 361p (see FIG. 13) of the case body 361. When the cover 362 is attached to the front surface of the case main body 361, the lock piece 362c of the cover 362 is inserted into the concave portion 361p of the case main body 361, and the claw 362d of the lock piece 362c is hooked on the concave portion 361p of the case main body 361. Is fixed to the case body 361.

  As shown in FIG. 1, the mounting portion 5 includes a substantially annular headband 51 and an arcuate support band 52. The front part of the headband 51 is arranged around the forehead of the user A. A leather cushion material 53 is wound around the front and rear portions of the headband 51 in order to improve the user's wearing feeling. The cushion material 53 also has a heat insulating function. The headband 51 is provided with a saw-like or rack-like length adjusting mechanism that adjusts the length of the headband 51 in the circumferential direction, most of which is covered with a cushion material 53, Only the adjustment knob 511a of the length adjustment mechanism is visible. A cord holding member (first cord holding member) 54 is rotatably attached to the adjustment knob 511a.

  The support band 52 is formed integrally with the headband 51. The support band 52 extends from one side of the headband 51, passes through the top of the user A's head, and reaches the other side of the headband 51. A leather cushion material 53 is wound around an intermediate portion of the support band 52. The support band 52 is provided with a length adjustment mechanism for adjusting the length from the center of the support band 52 to the center position of the headband 51 (depth of the mounting portion 5). Is covered with a cushion material 53 on the support band 52, and only the adjustment knob 511a of the length adjustment mechanism is visible. A cord holding member (second cord holding member) 54 is rotatably attached to the adjustment knob 521a.

As shown in FIGS. 19 to 21, the cord holding member 54 has a cap-shaped main body 54a and a pair of holding arms 54b. The cord holding member 54 is made of Teflon (registered trademark) resin. The cap-shaped main body 54a is substantially cap-shaped. A cylindrical portion 54c is formed at the center of the cap-shaped main body 54a. A screw (not shown) is inserted into the cylindrical portion 54c. With this screw, the cord holding member 54 is fixed to the adjustment knob 511a and the adjustment knob 521a, respectively. The pair of holding arms 54b is formed on the upper surface of the cap-shaped main body 54a. The distance between the tips of the pair of holding arms 54 b is smaller than the diameter of the power cord 121. One holding arm 54b has a female screw 54d. As shown in FIG. 21, the screw 55 can be screwed into the female screw 54 d and the power cord 121 can be fixed to the cord holding member 54 with the screw 55. Thereby, the light emission part 3 which prevents rotation of the light emission part 3 in the up-down direction UD can be held at a desired inclination angle. As a result, doctors who are surgeons can concentrate on surgery.
be able to.

  As shown in FIGS. 22 and 23, the connecting member 6 has a fixed portion 61 and a bearing portion 62. The fixing part 61 is substantially plate-shaped. The bearing portion 62 is coupled to one surface of the fixed portion 61. The bearing portion 62 has a hole 62a. The connecting member 6 is fixed to the mounting portion 5 by bonding the fixing portion 61 to the front portion of the headband 51 of the mounting portion 5.

  As shown in FIG. 24, the connection reinforcing member 9 has a pair of protruding pieces 91 and a coupling piece 92. A hole 91 a is formed at the tip of each protruding piece 91. The coupling piece 92 couples the pair of protruding pieces 91. The material of the connection reinforcing member 9 is preferably a metal such as stainless steel.

  Next, assembly work of the light emitting unit 3 will be described.

  First, a screw (not shown) is passed through the through hole 32d from the front of the circuit board 32, the tip of the screw protruding from the through hole 32d is screwed into the female screw 33a of the heat sink 33, and the heat sink 33 is fixed to the circuit board 32 ( (See FIGS. 2 and 3).

  Next, a bolt (not shown) is passed from the front of the lens 35 through the through hole 35d of the lens 35 and the through hole 32e of the circuit board 32, and a nut (not shown) is attached to the tip of the bolt protruding from the through hole 32e. Wear. Thereby, the lens 35 is fixed to the circuit board 32 (see FIGS. 2, 3, and 6).

  Thereafter, the two electric fans 34 are respectively arranged at predetermined positions surrounded by the plurality of positioning pieces 361c. Thereby, the frame part 34a of the electric fan 34 contacts the positioning piece 361c, and the electric fan 34 is positioned with respect to the case 36 (positioning in the vertical direction UD and the horizontal direction LR).

  Next, a screw (not shown) is passed through the through hole 32h from the front of the circuit board 32, and the screw protruding from the through hole 32h is screwed into the female screw 361e of the column 361d of the case body 361. Thereby, the circuit board 32 is fixed to the case main body 361, and the electric fan 34 is sandwiched and fixed between the case main body 361 and the heat sink 33 (see FIGS. 2 and 9).

  Finally, the seal member 37 is disposed in the annular groove 362 b of the cover 362, and the cover 362 is attached to the case main body 361. At this time, the lock piece 362 c of the cover 362 is inserted into the recess 361 p of the case body 361. As a result, the claw 362d of the lock piece 362c is caught in the recess 361p, and the cover 362 is fixed to the case body 361. The assembly of the light emitting unit 3 is completed by the above operation.

  Next, the connecting operation of the light emitting unit 3 to the mounting unit 5 will be described.

  As shown in FIG. 25, the protruding piece 91 of the connection reinforcing member 9 is passed through the through hole 361n of the case main body 361 from the front of the case body 361 in advance, and the protruding piece 91 is disposed in the recess 361k of the connecting piece 361j.

  First, the bearing portion 62 of the connecting member 6 is inserted between the pair of connecting pieces 361j.

  Next, the bolt 7 is inserted from the left side of the case main body 361 with the hole 91a of one protruding piece 91, the hole 361m of one connecting piece 361j, the hole 62a of the connecting member 6, the hole 361m of the other connecting piece 361j, and the other. It is inserted into the hole 91a of the protruding piece 91.

  Finally, the nut 8 is attached to the tip of the bolt 7 protruding from the hole 91a of the protruding piece 91. Through the above operation, the light emitting unit 3 is connected to the mounting unit 5.

  The intensity of light emitted from the light emitting unit 3 can be changed according to the number of the light emitting diodes 31, the type of the light emitting diodes 31, the supply voltage, and the like. Further, the light irradiation range can be arbitrarily set by the design of the lens 35 and the arrangement of the light emitting diode 31. In this embodiment, as shown in FIG. 26, the illuminance in a substantially ellipse having a major axis of 250 mm and a minor axis of 200 mm is set to be 30000 to 60000 lux at a distance of 600 mm forward from the front surface of the light emitting unit 3. Has been. Specifically, as shown in the figure, the illuminance of the area surrounded by the broken line located at the center of the ellipse is 60000 lux. A region surrounded by a broken line is a substantially oval shape having a major axis of about 150 mm and a minor axis of about 100 mm. The illuminance of the area other than the area surrounded by the broken line is 30000 lux at the minimum. Note that the illuminance of the region surrounded by the broken line is preferably 40000 lux or more.

  The substantially elliptical shape having a major axis of 250 mm and a minor axis of 200 mm corresponds to the shape and range of the incision T formed when operating on the chest and abdomen of the patient C shown in FIGS. Therefore, by setting the illuminance of the substantially elliptical region to 30000 to 60000 lux, it is possible to deal with most of chest and abdominal surgery.

  In addition, by setting the illuminance as described above, it is possible to illuminate the range of the surgical field (surgical field) with sufficient brightness even if there is no surgical light at the time of surgery, and it does not hinder the surgery. .

  As shown in FIG. 29, the power supply unit 107 includes a battery case 140 that houses a rechargeable battery (not shown) (for example, a lithium battery, a lithium ion battery, or a lithium ion battery). The battery case 140 is provided with a switch 141 for turning on the light emitting unit 3. In addition, the battery case 140 is provided with a display unit 143 that displays the remaining amount of electricity, and is also provided with a brightness adjustment switch 144. By operating the brightness adjustment switch 144, the intensity of light emitted from the light emitting diode 31 can be adjusted.

  A spare battery 108 is connected to the power supply unit 107, and power is supplied from the spare battery 108 when the battery of the power supply unit 107 is exhausted.

  Next, the use of the forehead lamp type surgical light 1 will be described.

  First, the diameter of the headband 51 and the length of the support band 52 are adjusted to match the head of the doctor A who is a medical worker, and the mounting portion 5 is mounted on the head of the doctor A. At this time, the light emitting unit 3 is arranged on the forehead of the doctor A, and the angle of the light emitting unit 3 is adjusted. Further, the power supply unit 107 and the spare battery 108 are attached to the doctor A's waist using the belt 1100. When the switch 141 is operated to turn on the light emitting diode 31 of the light emitting unit 3 and the doctor A turns his face toward the surgical field, the light from the light emitting unit 3 is irradiated onto the surgical field. At this time, even if it is 600 mm away from the front surface of the light emitting unit 3, the illuminance of the irradiated region is 3000 to 60000 lux, so that surgery can be performed without using a conventional surgical light. Further, the doctor A can make fine adjustments by twisting his neck in the direction he wants to see or bringing his face closer. Further, since the wide range is brightly illuminated as described above, for example, even when a sudden bleeding occurs from a place other than the part where the procedure is performed, the doctor A can immediately respond to the bleeding.

  Depending on the physique of patient C, the subcutaneous fat layer and muscle layer may be thick, and the thoracic cavity and abdominal cavity may be deep (the depth is about 200 mm to 500 mm), but the illuminance at a distance of 600 mm from the light emitting unit 3 is 60000. Since it can be lux, the illuminance of the deep part of the chest cavity or abdominal cavity S can be increased to 30000 lux or more, and the procedure is not hindered.

  Further, when the patient C is obese, for example, and the chest cavity or abdominal cavity S is deep, the brightness adjustment switch 144 is operated to increase the intensity of light emitted from the light emitting diode 31, and the illuminance at the back of the chest cavity or abdominal cavity S May be set to 40000 lux to 60000 lux.

  Next, FIG. 30, FIG. 31, and FIG. 41 show other examples of the power supply unit of the frame lamp type surgical light 1. FIG. The power supply unit 2107 shown in FIGS. 30, 31, and 41 has a battery case 2140 that houses a rechargeable large-capacity lithium battery (not shown).

  The battery case 2140 with a built-in charger includes a charging switch 2140a, a light switch 2140b, a dimming switch 2140c, a tilt switch 2140d, and a display panel 2140e. The charge switch 2140a is operated when charging the lithium battery. It is set so that power is not supplied to the light emitting unit 3 during charging of the lithium battery. The light switch 2140b is operated when the light emitting unit 3 is turned on / off. The dimming switch 2140c is operated when dimming described later is required. The tilt switch 2140d is operated when a tilt sensor (not shown) provided in the light emitting unit 3 is activated / stopped. When the tilt switch is operating, the light emitting unit 3 is turned on when the doctor A faces down, and the light emitting unit 3 is turned off when the doctor A raises his face. Thereby, it can prevent that the light of the light emission part 3 injects directly into the eyes of the doctor B standing in front of the doctor A who takes a scalpel. The display panel 2140e displays the operation state of the switches 2140a to 2140d.

  The dimming switch 2140c can be operated to adjust the dimming of the light emitting unit 3 in three stages. As shown in FIG. 26, the dimming means that a specific light emitting diode 31 (light emitting unit 3) is used in order to make the brightness of light emitted from the light emitting unit 3 on one plane different between the central part and the periphery thereof. The brightness of the eight light emitting diodes 31) located in the center of the light emitting diode 31 and the brightness of the surrounding light emitting diodes 31 are adjusted.

  For example, as shown in FIG. 32, it is assumed that the distance from the light emitting unit 3 to the body surface Ca of the patient C is 450 mm and the affected part (surgical site) Cb is further 150 mm away. In this case, when there is no dimming function and the affected part Cb is illuminated with 30000 lux, the brightness of the body surface Ca is about 60000 lux, and the doctor A is in front of the body surface Ca or the body surface Ca. Is too bright to see. Therefore, by adjusting the brightness and changing the brightness of the central part of the light and the surrounding part, the affected part Cb can be illuminated with 30000 lux, and the body surface can be illuminated with about 30000 lux. Since the distance from the body surface Ca to the affected part Cb varies, in this embodiment, dimming can be performed by the dimming switch 2140c in three stages according to the distance from the body surface Ca to the affected part Cb. The distance from the light emitting unit 3 (strictly speaking, the eyes of the doctor A instead of the light emitting unit 3) to the affected part Cb is 600 mm because the distance that the doctor A generally feels most comfortable to work is This is because. In order to maintain this distance, the bed portion on which the patient C of the operating table B is placed can be moved in the vertical direction UD. Note that if the face of the doctor A is too close to the patient C, it is difficult to perform an operation, but the dimming function can eliminate this inconvenience.

  Although the power supply unit 2107 is portable, it is not mounted on the doctor A's waist like the power supply unit 107 shown in FIG. Therefore, a large battery and a charger can be accommodated in the battery case 2140. The voltage of the lithium battery of the power supply unit 2107 is 12V, and the charging time of the lithium battery is about 10 hours. It can be used for about 7 hours on a single charge.

  According to this embodiment, air from the electric fan 34 passes through the circuit board 32 and the heat sink 33 by forming the vent holes 32f and 33f in the circuit board 32 and the heat sink 33, respectively. 31 can be efficiently cooled.

As a result, compared to the case without the vent holes 32f and 33f (except that the vent holes 32f and 33f are not provided, the other parts are the same as in this embodiment, and the voltage value and current value of the power supply unit are also the same). The illuminance at a distance of 600 mm from the light emitting diode 31 was increased by about 10 to 20 percent.
This illuminance width is caused by the number of vent holes 32f and 33f and the difference in opening area.

  Moreover, in this embodiment, since the notch 35c is formed in the outer peripheral part of the lens part coupling | bond part 35b of the lens 35, the air from the electric fan 34 which reached | attained the lens 35 is released outside the lens part coupling | bond part 35b. And the fogging of the lens 35 can be suppressed.

  Furthermore, since the lens 35 includes the lens portion 35a and the tray-shaped lens portion coupling portion 35b, for example, even if blood adheres to the lens 35, the blood can be easily wiped off.

  Further, the circuit board 32 is bent in two so that the central portion of the circuit board 32 in the left-right direction LR protrudes backward, and the angle θ formed by the right half and the left half of the circuit board 32 is about 170 degrees. The light emitted from the diode 31 can be concentrated in an appropriate range at a distance of about 600 mm, and the portion can be illuminated brightly.

  Thus, if the circuit board 32 is bent in two so that the center part of the circuit board 32 in the left-right direction LR protrudes backward, the center part of the circuit board 32 in the left-right direction LR becomes hotter than the other parts. Since many vent holes 32f are arranged in the center portion of the circuit board 32 in the left-right direction LR, the center portion of the circuit board 32 in the left-right direction LR can be efficiently cooled.

  Further, the electric fan 34 is positioned by positioning the frame 34 a of the electric fan 34 in the vertical and horizontal directions with the positioning piece 361 c of the case main body 361 and sandwiching the electric fan 34 between the case main body 361 and the heat sink 33. It is not necessary to fix the electric fan 34 to the case 36 with bolts and nuts (not shown), and the bolts and nuts are not corroded by washing with physiological saline. It is possible to reduce the weight of the light emitting unit 3 and simplify the assembly without using a nut. In addition, there is no risk of the bolts and nuts coming off and falling into the surgical field.

  Further, since the frame lamp type surgical light 1 of this embodiment includes the connection reinforcing member 9 (see FIG. 24), the strength of the connecting portion between the light emitting unit 3 and the connecting member 6 is high, and the light emitting unit 3 Even if an external force is applied, the connecting portion between the light emitting portion 3 and the connecting member 6 is not easily broken.

  Further, in this embodiment, since one circuit board 32 is used, the number of harnesses can be reduced and the light emitting unit 3 can be reduced in weight and cost compared to the conventional example using a plurality of circuit boards. Can also be reduced. In addition, this frame light type surgical light 1 is portable, but can secure the light necessary for surgery for a long time, so surgery and treatment can be performed in situations where the surgical light and auxiliary light cannot be used due to a power failure or disaster. Made possible.

  Next, a first modification of the embodiment shown in FIG. 1 of the present invention will be described with reference to FIGS.

  Portions common to the embodiment shown in FIG. 1 are denoted by the same reference numerals and description thereof is omitted. Only the main differences from the embodiment shown in FIG. 1 will be described below.

  As shown in FIGS. 33 and 34, in the frame lamp type surgical light 1 of this modification, hoods (guide portions) 11 are provided on both sides of the case main body 361. Since the hood 11 guides the air discharged from the exhaust hole 361b to the front of the case 36, hot air can be prevented from being blown to the face side of the doctor A. The hood 11 covers a portion from the back surface to the side surface of the case main body 361.

  In the first modification, the air discharged from the exhaust hole 361b is guided forward by the hood 11, so that the air discharged from the exhaust hole 361b can be prevented from directly hitting the head of the doctor A. It is possible to prevent the air discharged from the exhaust hole 361b from directly hitting the staff standing beside the doctor A.

  Next, a second modification of the embodiment shown in FIG. 1 of the present invention will be described with reference to FIGS.

  Portions common to the embodiment shown in FIG. 1 are denoted by the same reference numerals and description thereof is omitted. Only the main differences from the embodiment shown in FIG. 1 will be described below.

  As shown in FIGS. 35 and 36, in the frame lamp type surgical light 1 of this modification, hoods (guide portions) 12 are provided on both sides of the case main body 361. The hood 12 guides the air discharged from the exhaust hole 361 b to the rear of the case 36. The hood 12 has a curved plate shape and covers the side surface of the case main body 361.

  In the second modification, the air discharged from the exhaust hole 361b is guided backward by the hood 12, so that the air discharged from the exhaust hole 361b does not directly hit the staff standing beside the doctor A. be able to.

  Next, a third modification of the embodiment shown in FIG. 1 of the present invention will be described with reference to FIGS.

  Portions common to the embodiment shown in FIG. 1 are denoted by the same reference numerals and description thereof is omitted. Only the main differences from the embodiment shown in FIG. 1 will be described below.

  As shown in FIGS. 37 and 38, in the frame lamp type surgical light 1 of this modification, hoods (guide portions) 13 are provided on both sides of the case main body 361. The hood 13 includes a curved plate-shaped hood main body 131 and a shielding plate 132 coupled to the lower end of the hood main body 131. The hood main body 131 has a curved plate shape and covers the side surface of the case main body 361. The shielding plate 132 is coupled to the lower end of the hood main body 131 and blocks the air that is exhausted from the exhaust hole 361b and is directed downward so that the air exhausted from the exhaust hole 361b does not go downward (toward the face of the doctor A).

  In the third modified example, since the air discharged from the exhaust hole 361b is guided backward by the hood 12, the air discharged from the exhaust hole 361b is not directly applied to the staff standing beside the doctor A. In addition, the air discharged from the exhaust hole 361b can be prevented from going toward the face.

  Next, a fourth modification of the embodiment shown in FIG. 1 of the present invention will be described with reference to FIGS.

  Portions common to the embodiment shown in FIG. 1 are denoted by the same reference numerals and description thereof is omitted. Only the main differences from the embodiment shown in FIG. 1 will be described below.

  As shown in FIGS. 39 and 40, in the frame lamp type surgical light 401 of this modification, an exhaust hole 361q is formed on the upper surface of the case main body 4361, and two hoods (guide portions) are formed on the upper surface of the case main body 4361. 14 is provided. The hood 14 has a substantially dust-like shape, and guides the air discharged from the exhaust hole 361q to the front of the case 436.

  In the fourth modification, a part of the air discharged from the case 436 is guided forward by the hood 14, so that the amount of air discharged from the case 436 and directly hitting the doctor A's head can be reduced.

  1: frame lamp type surgical light, 3: light emitting part, 31: light emitting diode (light emitting element), 32: circuit board, 32a: conductor pattern, 32b: pad, 32c: insulating film, 32d: through hole, 32e: Through hole, 32f: Vent hole, 32g: Mounting piece, 32h: Through hole, 32i: Electric wire, 33: Heat sink, 33a: Female screw, 33f: Vent hole, 34: Electric fan (fan), 34a: Frame part, 34b: Electric wire, 35: lens, 35a: lens portion, 35b: lens portion coupling portion, 35c: notch, 35d: through hole, 36: case, 361: case main body, 361a: intake hole, 361b: exhaust hole, 361c: positioning Piece, 361d: support, 361e: female screw, 361f: recessed portion, 361g: hole, 361j: connecting piece, 361k: recessed portion, 361m: hole, 361n: through hole, 361p: recessed , 361q: exhaust hole, 362: cover, 362a: window, 362b: annular groove, 362c: lock piece, 362d: claw, 37: seal member, 5: mounting portion, 51: headband, 511a: adjustment knob, 52: Support band, 521a: adjustment knob, 53: cushion material, 54: cord holding member, 54a: cap-shaped main body, 54b: holding arm, 54c: cylindrical portion, 54d: female screw, 6: connecting member, 61: fixing portion 62: bearing part, 62a: hole, 7: bolt, 8: nut, 9: connection reinforcing member, 91: protruding piece, 91a: hole, 92: coupling piece, 11, 12, 13, 14: hood (guide part) ), 107: power supply unit, 2107: power supply unit, 108: spare battery, 121: power cord, 140: battery case, 2140: battery case, 2140a: power switch, 2140 : Light switch, 2140c: dimming switch, 2140d: tilt switch, 2140e: display panel, 141: switch, 1100: belt, A: doctor, B: operating table, C: patient, Ca: body surface, Cb: affected area, S: Abdominal cavity, LR: Left-right direction, UD: Up-down direction.

Claims (7)

In a frame lamp type surgical light comprising a light emitting unit and a mounting unit for mounting the light emitting unit on a human head,
The light emitting unit
A plurality of light emitting elements;
A circuit board on which the light emitting element is mounted;
A heat sink fixed to a surface of the circuit board opposite to the surface on which the light emitting element is mounted;
A heat dissipating fan disposed behind the heat sink;
A lens disposed in front of the light emitting element;
A case for housing the light emitting element, the circuit board, the heat sink, the fan, and the lens;
An intake hole for sucking air outside the case into the case is formed in the case,
A vent hole for passing air sucked from the intake hole is formed in the heat sink and the circuit board,
An exhaust hole for discharging the air in the case to the outside of the case is formed in the case,
The front light of the lens is exposed to the outside of the case through a window formed in the front portion of the case. The lens includes a lens portion disposed so as to face the light emitting element, and a tray-like lens portion coupling portion that couples the lens portions,
The lens is disposed to face the right side portion and the left side portion of the circuit board, respectively.
The frame according to claim 1, wherein a notch for allowing air to escape from the outer peripheral portion of the tray-shaped lens portion coupling portion to the outside of the lens portion coupling portion is formed in the lens portion coupling portion. Band-type surgical light. The forehead lamp type surgical light according to claim 1 or 2, wherein a guide portion for guiding the air discharged from the exhaust hole in a predetermined direction is provided in the case. The circuit board is bent in two so that a central portion in the left-right direction of the circuit board protrudes backward, and an angle formed by a right half and a left half of the circuit board is about 170 degrees. The forehead lamp type surgical light according to any one of 1 to 3. The fan is disposed to face the right side portion and the left side portion of the circuit board, respectively.
A half of the plurality of light emitting elements is disposed on a right side portion of the circuit board, and a remaining half of the plurality of light emitting elements is disposed on a left side portion of the circuit board,
The air intake hole is disposed on the back surface of the case;
The exhaust hole is disposed from the side of the case to the back surface,
The frame lamp type surgical light according to claim 4, wherein a large number of the vent holes are arranged in a central portion of the circuit board in the left-right direction. Each of the two adjacent fans has a blade and a case for housing the blade,
A part of the outer peripheral surface of the case of one fan of the two fans and a part of the outer peripheral surface of the case of the other fan of the two fans are disposed adjacent to each other via a gap,
In a part of the outer peripheral surface of the case of the one fan and a part of the outer peripheral surface of the case of the fan,
The frame lamp type surgical light according to claim 5, wherein a notch is formed to intensively supply air sucked from the air intake hole to a central portion of the circuit board. The mounting part is
A headband surrounding the head;
A support band reaching from one side of the headband to the other side of the headband via the top of the head;
A first cord holding member that is attached to an intermediate portion of the support band and holds a power cord that electrically connects the light emitting portion and a power source portion disposed away from the light emitting portion;
The frame lamp type surgical light according to any one of claims 1 to 6, further comprising a second cord holding member that is attached to a rear portion of the headband and holds the power cord.