JP2006223605A - Light source cooling system and endoscopic system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light source cooling system and an endoscopic system capable of saving the space. <P>SOLUTION: The light source cooling system 101 comprises a light source 103, a high-pressure gas pressure-reducing means for reducing the pressure of high-pressure gas and a heat transfer means with a heat insulating means for transferring the cooling effect generated by the high-pressure gas pressure-reducing means to the light source 103. The light source cooling system 101 is used for the light source for the endoscopic system as the high-pressure gas pressure-reducing means is pressure-reducing valves 111 and 112 for reducing the pressure of the high-pressure feeding gas in a gas feeding device for the endoscope. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a light source cooling system and an endoscope system that can save space.

An endoscope system, which is a medical system composed of a plurality of medical devices, is generally mounted on a carriage called a medical trolley or on a ceiling suspension device.
A medical device having a heat generating portion such as a light source device or a high-frequency treatment device of an endoscope system is provided with a fan for cooling the heat generating portion. Further, in order to improve the heat dissipation effect, a space is provided inside the medical device casing, and an opening for heat dissipation is provided on the side face and the back face of the casing. The cooling fan of a medical device provided with such a heat generating part automatically rotates and performs a cooling process when the power of each device is turned on.

On the other hand, in order to secure the field of view of the endoscope, CO ₂ gas (carbon dioxide) or the like is supplied into the abdominal cavity of a patient using an air supply device represented by an insufflator. The CO ₂ gas is generally filled in a high-pressure cylinder, and the high-pressure CO ₂ gas is depressurized by a primary pressure reducing valve during insufflation. For this reason, the CO ₂ gas pressure reducing valve is cooled by the physical laws of gas, and may freeze during long-time continuous operation. In order to prevent the pressure reducing valve from freezing, conventionally, a spacer is provided on the floor of the pressure reducing valve to prevent the freezing.

Since the endoscope system as described above is large and compresses a limited surgical space, downsizing of the endoscope system is a potential need.
Further, the temperature of the halogen lamp portion of the light source device is a high temperature around 400 ° C., and this temperature greatly affects the life of the halogen lamp. For this reason, various light source cooling methods are disclosed in Patent Documents 1 to 3. All of these technologies are based on an air cooling system in which a cooling fan is always operated. In the case of the air cooling method, it is necessary to provide a space inside the light source device housing so that air circulation is good, which has been an obstacle to miniaturization of the light source device. Further, in order to improve the cooling efficiency, it is necessary to provide a large cooling fan, leading to an increase in the size of the light source device. When the cooling fan is used for a long time, dust accumulates in the air outlet hole portion of the light source device cooling fan when the outside air is sucked, so that periodic cleaning maintenance is required.

On the other hand, in the air supply device, there is a problem that a dry ice-like solidified body adheres to the inside of the pipe due to the heat of vaporization when the CO ₂ gas is depressurized to cause an air supply failure. In order to solve this problem, as disclosed in Patent Document 4, the pressure reducing valve and the heat sink of the light source device are connected by a heat conduction conduit, and the heat generation amount of the light source unit is diverted to the heating of the pressure reducing valve. There is. According to this method, the problem of CO ₂ gas coagulation in the air supply pipe can be solved, but the cooling of the light source device is performed by the cooling fan provided in the light source device, which satisfies the space saving of the light source device. I couldn't.

Each of the light source device and the cooling device is packaged in an independent housing and mounted on a medical trolley or a ceiling suspension system. Therefore, in an endoscope system equipped with a system controller, each device is connected by a communication cable. The cable connection is a troublesome work, and the cable length needs to be set long in advance to satisfy various layouts, and the extra wiring has led to an increase in the size of the endoscope system.
JP-A-7-194515 JP 2004-180947 A JP-A-7-303603 Japanese Patent Laid-Open No. 11-188005

  The subject of this invention is made | formed in view of the said conventional situation, and provides the light source cooling system and endoscope system which enabled space saving.

  The first light source cooling system of the present invention includes a light source, a high-pressure gas decompression unit that decompresses the high-pressure gas, and a heat insulation unit, and a heat transfer unit that transmits the cooling action generated by the high-pressure gas decompression unit to the light source. , Provided.

  The second light source cooling system of the present invention is the first light source cooling system, wherein the heat transfer means includes a first conductor for supplying electricity to the first electrode of the light source, and a second And a second conductor for supplying electricity to the electrode, wherein the first conductor and the second conductor are arranged with a predetermined clearance. .

The third light source cooling system of the present invention is the first or second light source cooling system, wherein the heat transfer means is made of an insulator.
The fourth light source cooling system of the present invention is the first light source cooling system, wherein the heat transfer means is a heat conductor.

The fifth light source cooling system of the present invention is the first light source cooling system, wherein the heat transfer means is based on circulation of fluid.
A first endoscope system according to the present invention is an endoscope system using any one of the first to fifth light source cooling systems, wherein the high-pressure gas decompression means includes an endoscope. The mirror air supply device is a pressure reducing valve for reducing the pressure of the high-pressure air supply gas.

  The second endoscope system of the present invention is the first endoscope system described above, wherein the relief for adjusting the pressure of the air supply device based on the temperature detection means of the light source and the detection result of the temperature detection means. Relief valve opening / closing control means for controlling opening / closing of the valve is provided.

A third endoscope system according to the present invention is the first or second endoscope system, wherein the light source cooling system is an integral casing.
A fourth endoscope system according to the present invention is any one of the first to third endoscope systems, wherein the light source cooling system is formed by integrating a medical trolley.

  A fifth endoscope system according to the present invention is any one of the first to fourth endoscope systems described above, and includes various devices mounted on relay connectors provided at a plurality of locations of a medical trolley. It is characterized by connecting a cable.

A sixth endoscope system according to the present invention is any one of the first to third endoscope systems, wherein the light source cooling system is integrated with a ceiling suspension system.
A seventh endoscope system according to the present invention is any one of the first to third or sixth endoscope systems described above, and is mounted on relay connectors provided at a plurality of locations of the ceiling suspension system. It is characterized by connecting cables of various devices.

  According to the present invention, it is possible to suppress the heat generation of the light source without operating the cooling fan by providing the heat transfer means for transmitting the cooling action generated by the high pressure gas decompression means to the light source. Therefore, no cooling fan is required, and the space for the light source cooling system can be saved.

  The heat transfer means includes a first conductor for supplying electricity to the first electrode of the light source and a second conductor for supplying electricity to the second electrode. By arranging the conductor and the second conductor with a predetermined clearance, danger such as a short circuit is prevented and safety is ensured.

Further, by using the light source cooling system described above for the endoscope system, it is possible to save the space of the endoscope system.
Further, since the relief valve opening / closing control means for controlling the opening / closing of the relief valve based on the detection result of the temperature detection means is provided, the light source can be cooled without being affected by the operating state of the high-pressure gas decompression means.

In addition, by integrating the medical trolley or the ceiling suspension system with the light source cooling system, it is not necessary to individually provide a housing frame, and space can be saved.
Further, by connecting the cables to the relay connectors provided at a plurality of locations in the medical trolley or the ceiling suspension system, the required length of the cable is shortened, no extra cable is generated, and the space can be saved.

First, the light source cooling system and the endoscope system will be described with reference to FIGS. 1 to 3.
FIG. 1 is a schematic perspective view of an endoscope system. As shown in the figure, a patient bed 19 on which a patient 30 lies, a first endoscope system 2 and the like are arranged in the endoscopic operating room 1. The first endoscope system 2 has a first medical trolley 12. Further, depending on the procedure, the second endoscope system 3 may be provided.

  In the first medical trolley 12, for example, a high-frequency treatment device 13, an air supply device 14, a light source device 15, an endoscope video processor 16, a VTR (video tape recorder) 17, and the like as medical devices that are controlled devices. An apparatus and a gas cylinder 18 filled with carbon dioxide or the like are placed. The light source device 15 and the endoscope video processor 16 are connected to the first camera head 31.

  In addition, an endoscope display panel 11, a first central display device 21, and the like are also placed on the first medical trolley 12. The endoscope display panel 11 is, for example, a TV monitor that displays an endoscope image or the like. The first centralized display device 21 is a display means capable of selectively displaying all data during the operation. The operation panel 33 is composed of a display unit such as a liquid crystal display and a touch sensor integrally provided on the display unit, for example, and is a centralized operation device operated by a nurse or the like in a non-sterile area. Yes. The separate endoscope display panel 20 is a means for displaying all information related to the procedure such as CT scan data, vital signs, or past case information, in addition to the data during the operation. The separate endoscope display panel 20 is easy to move and can be deployed at a position desired by the operator.

  Furthermore, a system controller 22 as a control device is placed on the first medical trolley 12. The system controller 22 is connected to controlled devices such as the high-frequency treatment device 13, the air supply device 14, the light source device 15, the endoscope video processor 16, and the VTR 17 via a communication line (not shown).

  On the other hand, the second medical trolley 25 deployed by the procedure includes a light source device 26 that is a controlled device, an endoscopic video processor 27, an ultrasonic coagulation / incision treatment device 34, an endoscope display panel 35, Two centralized display panels 36 are placed. The light source device 26 and the endoscope video processor 27 are connected to the second camera head 32. The endoscope display panel 35 displays an endoscope image and the like captured by the endoscope video processor 27. The second centralized display device 36 can selectively display any data during the operation. Medical devices placed on the second medical trolley 25 such as the light source device 26 and the endoscope video processor 27 are connected to the relay unit 28 by an interface cable (not shown). Further, the relay unit 28 is connected to a system controller 22 mounted on the first medical trolley 12 by a relay cable 29.

  Therefore, the system controller 22 includes the light source device 26, the endoscope video processor 27, and the ultrasonic coagulation / incision treatment device 34 mounted on the second medical trolley 25, and the first medical trolley 12. The high-frequency treatment device 13, the air supply device 14, the light source device 15, the camera device 16, and the VTR 17 that are mounted on the vehicle can be centrally controlled. For this reason, the system controller 22 can display the setting screen of the connected device and the setting screen of the operation switch on the display of the operation panel 33 described above. Further, the system controller 22 can perform an operation input such as a change of a set value by touching a desired operation switch and operating a touch sensor in a predetermined area.

  The wired remote controller 23 is a second centralized operation device operated by a surgeon or the like in the sterilization area, and can operate other devices with which communication is established via the system controller 22. Yes. In addition, it is possible to operate another device with which communication is established via the system controller 22 by the wireless remote controller 24 typified by infrared rays, which is the third centralized operation device. A reception port (not shown) of the wireless remote controller 24 is provided at a position where reception is easy, such as in the vicinity of the first centralized display device 21, and is connected to the system controller 22 by a cable.

  The peripheral device is mounted on a trolley shelf 40 or a trolley shelf 42 provided in the medical trolley. Depending on the case, it is mounted on the trolley top plate 41 or the trolley top plate 43.

  The peripheral device layout as described above is merely an example. The layout can be changed flexibly according to the external shape of the equipment to be installed and the demands of the surgeon. Further, not only those specialized in the endoscope system described below in the embodiment, but also an example in which an air supply device and a light source device are mounted on a medical trolley, that is, a case where a system controller is not mounted Is also applicable.

FIG. 2 is a schematic diagram showing the internal configuration of the air supply device. In laparoscopic endoscopic surgery, a trocar for guiding an endoscope for observation into a body cavity and a trocar for guiding a treatment tool to a treatment site are inserted into the abdomen of a patient 50, and the treatment tool and the treatment site are endoscopeed. The treatment is performed while observing. In this method, for example, CO ₂ gas is supplied into the abdominal cavity of the patient 50 by using an air supply device 51 typified by an insufflator to secure the field of view of the endoscope. The high-pressure CO ₂ gas stored in the gas supply gas cylinder 60 passes through the primary pressure reducing valve 53 and the secondary pressure reducing valve 54 in the air supply line 52 via the high pressure hose 61, and the manifold 55 is turned ON / OFF. It is controlled by the air supply valve 56. In the air supply line 52, the pressure is controlled by a supply pressure gauge 58 and an air supply pressure gauge 57, and the air supply flow rate is controlled by a flow meter 59. In addition, a relief valve (not shown) is provided for pressure release. The internal air gas cylinder 60 that CO ₂ gas is filled is a high pressure, for example under reduced pressure bomb pressure of about 134kgf / cm ² in a primary pressure reducing valve to 4 kgf / cm ^2. At this time, heat of vaporization is generated according to the physical laws of gas, and the decompressor is cooled. The primary pressure reducing valve 53, the secondary pressure reducing valve 54, and the air supply valve 56 used in the above description are driven by the drive base 62, and the control of the air supply pressure gauge 57, the supply pressure gauge 58, and the flow meter is controlled. It is assumed that it is performed by the base 63.

  On the other hand, light source devices and high-frequency ablation devices used in laparoscopic endoscopic surgery are equipped with multiple control boards, and air cooling is performed with cooling fans to reduce the amount of heat generated by each control board. . In particular, the light source device has a heat generation temperature close to 400 degrees in the xenon lamp section, and various methods are used for cooling the light source device.

  FIG. 3 is a schematic diagram illustrating an internal configuration of the light source device. The light source device 71 has a detachable structure by a light guide connector 72a provided on a light guide cable 72 extending from an endoscope (not shown), and is represented by a xenon lamp provided in the light source device 71. The illumination light generated by the lamp 73 is condensed on the end surface 72 b of the light guide cable 72 by the illumination lens 74. The illumination light collected on the end surface 72b of the light guide cable 72 is transmitted to the distal end of the endoscope through a light guide fiber bundle (not shown) that is inserted through the light guide cable 72, and illuminates the subject. It has become. In addition, a heat sink 75, its base 76, a power supply unit 77, and the like are provided.

Based on the above, embodiments of the present invention will be described with reference to the drawings.
[Embodiment 1]

  FIG. 4 is an explanatory diagram showing the light source cooling system in the first embodiment. First, the light source device mechanism of the light source cooling system 101 that is an integrated housing of the air supply device and the light source device shown in FIG. A light guide 102a is connected to the light guide connector 102, and an endoscope camera head (not shown) is connected via the light guide 102a. In the light source device mechanism, a lamp 103 typified by a xenon lamp, a rotation filter (not shown) that transmits illumination light, an illumination lens 104, and a diaphragm mechanism 105 are arranged substantially linearly. Light is applied to the light guide end face 102b. The front panel 106 of the light source mechanism is provided with a display screen 106a for displaying each device setting value and current value, a switch 106b for setting the setting value, and the like. In addition, it includes a drive circuit for driving the rotary filter, a light control circuit for adjusting the amount of illumination light, and a control board 107 for controlling each part. The lamp 103 and the heat sink 108 including the heat radiating portion are thermally coupled, and the amount of heat generated in the lamp 103 is radiated from the heat sink 108.

Next, the air supply mechanism will be described. The air supply mechanism is provided with a gas input port 109, and receives the supplied gas with a high-pressure base (not shown). The supplied high-pressure gas is sent to the primary pressure reducing valve 111 and the secondary pressure reducing valve 112 through the metal piping tube 110. The piping tube 110 is provided with a gas supply detection sensor 113 for detecting the supplied high-pressure gas, and monitors the supply state of the supplied gas. Insufflated high pressure gas from the pressure of the primary pressure reducing valve 111 for example cylinder pressure of about 134kgf / cm ^2, up to about 4 kgf / cm ^2, is evacuated to further secondary pressure-reducing valve 112, for example, about 80 mmHg, sent to manifold 114 It is done. The manifold 114 includes an air supply pressure gauge (not shown) that measures the abdominal pressure. In addition, an air supply valve 116 that opens and closes according to the measured abdominal pressure and set pressure to adjust the intra-abdominal pressure is provided. The gas supplied is connected to the patient's abdominal cavity through an air supply tube 118 connected to an air supply base 117 provided on the apparatus front panel. Also provided is a relief valve 119 that reduces the intra-abdominal pressure when the intra-abdominal pressure is higher than the set pressure. Here, it is assumed that valves such as an air supply pressure gauge and an air supply valve 116 are electrically connected to the control board 107 by wiring.

  In addition, a power cord (not shown) extends to the light source cooling system 101, which is an integrated housing of the light source device and the air supply device, and commercial AC power is supplied via this power cord to each control board. The power is supplied. One power switch 120 is provided in common on the front panel 106, for example.

Next, the configuration of the main part of the light source cooling system according to Embodiment 1 will be described with reference to FIGS.
FIG. 5 is an explanatory diagram showing a main part of the light source cooling system in the first embodiment. FIG. 1A is a perspective view, and FIG.

FIG. 6 is a cross-sectional view showing a heat sink and a lamp of the light source cooling system in the first embodiment.
As shown in FIG. 6, when a lamp 103 typified by a xenon lamp is used, lamp electrodes 103 a and 103 b exist in the lamp 103, and power is supplied through a metal heat sink 108. The lamp electrodes 103a and 103b are metal members having an extremely low electric resistance, and in order to secure a contact area with the heat sink 108 and improve adhesion, for example, a conductive resin having a high thermal conductivity such as silicon is used. They are connected by the conductive connection part 121. The lamp 103 is preferably protected by a ceramic casing.

  FIG. 7 is a cross-sectional view showing the heat conducting plate in the first embodiment. The broken line is for explaining the position of the heat sink. One of the pair of heat sinks 108 is connected to the heat conduction plate 123 and the other is connected to the heat conduction plate 124. When the heat sink 108 is a power supply component for the lamp, the clearance between the heat conducting plates 123 and 124 is sufficiently large to ensure safety as a medical device in order to prevent a short circuit of the heat sink 108. . The heat conducting plates 123 and 124 are thermally coupled to the pressure reducing valves, and the pressure reducing valves are arranged so that the heat quantity can be evenly distributed to the heat conducting plates 123 and 124. In the case where a resin or ceramic having a high thermal conductivity is used for the heat conductive plates 123 and 124, it is not necessary to separate them.

Hereinafter, the operation in the first embodiment will be described.
As shown in FIG. 5, the heat generated by the lamp 103 is conducted to the heat sink 108 via the conductive connection portion 121.

  That is, heat is conducted to the heat conduction plate 123 and the heat conduction plate 124 by the electrically insulating heat conduction plate 122, but is electrically insulated. A method for supplying power to the lamp 103 is supplied from a power source (not shown) to the lamp 103 through the heat sink 108, the conductive connection part 121 shown in FIG. 6, and the lamp electrodes 103a and 103b.

  The primary pressure reducing valve 111 and the secondary pressure reducing valve 112 for reducing the pressure of the gas supplied from the gas cylinder are connected by a piping tube 110. The pressure reduction drop is higher for the primary pressure reducing valve than the secondary pressure reducing valve, and the heat for vaporization cooling is low, but in order to effectively use the heat for vaporization cooling generated during the secondary pressure reduction, the interval between both pressure reducing valves should be as short as possible, or It is good also as an integral structure. The primary pressure reducing valve 111 and the secondary pressure reducing valve 112 are installed on a base 125 attached to the light source cooling system 101. The evaporative cooling heat generated when the gas supplied from the gas cylinder is reduced in pressure is conducted to the heat sink 108 via, for example, a metal heat conduction plate 123 and a heat conduction plate 124 having high thermal conductivity.

  Here, in order to conduct the heat of vaporization generated in the pressure reducing valve to the heat conducting plates 123 and 124 without loss, the outside of the pressure reducing valves 111 and 112 is covered with a heat conductor 126 as shown in FIG. Touch the plate. At this time, since the outer shape of the pressure reducing valves 111 and 112 is generally a stepped structure, for example, the pressure reducing valves 111 and 112 are made of heat by a resin heat conductor 126 typified by silicone having high shape followability. By covering, the adhesion between the pressure reducing valves 111 and 112 and the heat conductor 126 is improved, and the heat of vaporization can be transmitted efficiently.

  Further, as shown in FIG. 5, the primary pressure reducing valve 111 and the secondary pressure reducing valve 112 are made of heat insulating material so that heat treatment is performed on the primary pressure reducing valve 111 and the secondary pressure reducing valve 112 in order to prevent heat loss of the heat sink cooling. The heat insulating cover 127 is used to prevent the waste of generated heat of vaporization. The heat insulating cover 127 also has a structure that covers the side surfaces of the heat conductors 123 and 124 described above, and prevents heat loss during heat conduction to the heat sink 108. The heat insulating cover 127 is attached to the base 125.

FIG. 8 is a flowchart showing a flow of cooling the heat sink in the first embodiment. The flowchart shown in FIG.
(1) Start supplying CO ₂ gas to the light source cooling system.
(2) Evaporative cooling heat is generated by the primary pressure reducing valve.
(3) Similarly, evaporative cooling heat is generated by the secondary pressure reducing valve.
(4) The vaporization cooling heat is conducted to the heat conducting plate.
(5) Furthermore, cooling heat is conducted to the heat sink, and the heat sink is cooled.

  In the present embodiment, the xenon lamp has been described. However, the present technology can be applied not only to a specific lamp but also to all light source devices performing a cooling process. In addition, the primary pressure reducing valve and the secondary pressure reducing valve are thermally coupled to the heat sink. However, when there is a restriction on the space of the apparatus housing, only the primary pressure reducing valve may be thermally coupled to the heat sink.

  In this embodiment, it is assumed that the lamp cannot be cooled when there is no high-pressure gas in which the air-feeding gas is sealed. For this reason, the gas supply status is monitored by the gas supply detection sensor 113 shown in FIG. The gas supply sensor 113 is electrically connected to the control board 107. When the gas runs out, the operator is notified by a buzzer or a signal. Alternatively, control for temporarily stopping the operation of the light source cooling system 101 is performed. Alternatively, it may be automatically switched to a spare gas cylinder (not shown) by a switching valve or the like.

  According to the first embodiment, the heat conduction plate is cooled by the evaporative cooling heat generated by reducing the pressure of the supplied high-pressure gas, and the lamp of the light source device heating unit to which the heat conduction plate is connected is cooled. The heat sink is cooled, and the heat generation of the light source device can be suppressed without operating the cooling fan.

Therefore, a cooling fan for the light source device is not necessary, and the light source device can be downsized.
Further, since the cooling fan is not required, the cooling fan ventilation hole is also unnecessary, so that the problem of dust collecting in the cooling fan ventilation hole is solved, and the maintainability is improved.
[Embodiment 2]

The present embodiment is an application example of the first embodiment.
In the first embodiment, the light source device can be cooled during operation of the air supply device in laparoscopic surgery, but the air supply processing is not always performed during the operation. Therefore, the temperature of the heat sink is monitored, and depending on the amount of heat generated, that is, depending on the usage status of the air supply device, the air supply gas leaks and the pressure reducing valve is activated to generate vaporization cooling heat. Is intended.

  FIG. 9 is a schematic diagram showing a light source cooling system in the second embodiment. The light source cooling system 201 of the present embodiment includes a temperature detection sensor 203 that constantly monitors the temperature of the heat sink 202 compared to the light source cooling system of the first embodiment described above. The temperature detection sensor 203 is electrically connected to the control board 221. The piping tube 204 is branched into a main system 207 and a cooling system 208 for cooling that are supplied to the patient when the primary pressure reducing valve 205 and the secondary pressure reducing valve 206 are exceeded. The main system 207 includes an air supply valve 209, a relief valve 210, an air supply pressure gauge 211 that measures the abdominal pressure of the patient, and the like. On the other hand, the cooling system 208 is provided with a cooling valve 212.

  The temperature detection sensor 203 detects the heating state of the heat sink 202, and the cooling valve 212 is opened when the temperature of the heat sink 202 rises above the set temperature. A threshold value for opening the cooling valve 212 is set in advance on the control board 204 side. Or it can be set on the front panel. A nozzle (not shown) is attached to the end 208a of the cooling system 208, and when the cooling valve 212 is opened, the released gas is blown onto the heat sink 202, so that a cooling effect by gas blowing is achieved.

  FIG. 10 is a perspective view showing a light source cooling system in the second embodiment. The lamp of the light source cooling system 201 generally has a lamp life of about 300 hours. When replacing the lamp, it is desirable to have a structure in which the heat sink 202 in which the lamp is assembled can be removed from the light source cooling system 201 together with the unit. Therefore, by fixing the fixing block 214 and the base 215 of the light source cooling system 201 by the heat sink fixing stay 213, The sliding heat sink unit 216 is fixed.

  11A and 11B are explanatory views showing the heat sink unit according to the second embodiment. FIG. 11A is an explanatory view showing before the slide, and FIG. 11B is an explanatory view showing after the slide. The heat sink unit 216 is fixed by a heat sink unit fixing mechanism 217 including a heat sink fixing stay 213 and a fixing block 214. The heat sink unit fixing mechanism 217 is provided on the side surface on which the heat sink unit 216 can be easily removed.

The heat sink unit fixing method described with reference to FIGS. 10 and 11 is an example, and is not specific to the configuration described in the present invention.
Since the second embodiment is configured in substantially the same manner as the first embodiment as described above, the operation thereof will be described while omitted.

  FIG. 12 is a schematic diagram illustrating an example of a heat sink unit fixing mechanism according to the second embodiment. Since the positional relationship between the heat sink unit lamp and the illumination lens affects the amount of light during observation, it is necessary to fix the heat sink unit 216 with high accuracy. The depth direction of the heat sink unit 216 is fixed by the positioning block 218. Although not shown, it is preferable that the same positioning block is provided in the depth direction with respect to the front panel. In order to fix the heat sink unit 216, for example, a heat sink press 219 made of a resin material having high heat resistance is fixed to the heat sink press stay 220. The heat sink holding stay 220 is tightened with a heat sink holding screw 221 such as a thumbscrew, and the heat sink 216 and the heat sink holding stay 220 are fixed. At this time, the heat sink retainer 219 is elastically deformed, so that the heat sink unit 216 is prevented from rattling and the heat sink unit 216 can be fixed.

FIG. 13 is a flowchart showing the flow of cooling the heat sink in the second embodiment, and is a characteristic diagram showing the relationship between the time and the monitoring temperature of the heat sink. The flowchart shown in FIG.
(1) The heat sink temperature t is constantly monitored.
(2) If the heat sink temperature t is lower than the cooling valve “open” operating temperature T1 (point (b) in the figure), the monitoring state returns to (1), and if it is above, the process proceeds to (3).
(3) By opening the cooling valve, the cooling valve base is cooled by the heat of vaporization and the heat sink is cooled. On the other hand, the cooling efficiency is improved by CO ₂ blow.
(4) Therefore, if the heat sink temperature t being monitored is gradually lowered and the heat sink temperature t is equal to or lower than the cooling valve “closed” operating temperature T2 (point B in FIG. 5B), the process proceeds to (5).
(5) Set the cooling valve to “closed” and return to the monitoring state of (1).

  Two driving temperatures for opening and closing the cooling valve are provided for starting and stopping driving in order to prevent chattering operation of the cooling valve (operation in which the signal repeats ON / OFF) due to a minute change in temperature.

  As described above, in order to control the opening and closing of the cooling valve, the relationship between the time history and the monitoring temperature t of the heat sink is as shown in FIG. Here, when the heat sink temperature t does not fall below T2 for a certain period or longer, the power is turned off to protect the light source.

  Basically, in laparoscopic endoscopic surgery, the insufflation device is always operating and heat of vaporization and cooling is generated by the pressure reducing valve, but depending on the progress of the operation, insufflation gas leaks in the abdominal cavity may occur. In some cases, the gas is not supplied and the heat of vaporization cooling is insufficient.

  In addition, there may be a case where the air supply device such as an endoscopy is not operated at all times. When this embodiment is applied, there may be a case where the air supply gas is released only for cooling. However, the carbon dioxide gas generally used as the air supply gas is about 5000 yen per 2 kg, and can be continuously operated for about 10 hours. The time required for the endoscopy is 15 to 30 minutes, and the air supply device may be operated by a procedure such as inflating the digestive organ during the endoscopy. For this reason, it is considered that the air supply gas released only for cooling is small, and the influence of the running cost increase is also small.

  According to the second embodiment, as in the first embodiment, the heat conduction plate is cooled by the vaporization cooling heat generated by reducing the pressure of the supplied high-pressure gas, and the heat conduction plate is connected. The heat sink that cools the lamp of the light source device heat generating unit is cooled, and heat generation of the light source device can be suppressed without operating the cooling fan. Therefore, a cooling fan for the light source device is not necessary, and the light source device can be downsized. In addition, it is difficult for dust to collect in the cooling fan ventilation hole, and maintenance is improved.

Also, by monitoring the temperature of the heat sink and depending on the amount of heat generated, that is, the usage status of the air supply device, the air supply gas leaks and the pressure reducing valve is operated to generate vaporization cooling heat. The heat sink can be cooled without being affected by the operating conditions.
[Embodiment 3]

  This embodiment is used in the prior art, assuming that the cooling effect of the heat sink is insufficient or the space of the light source device main body is sufficient in the first and second embodiments. This is an example of installing a cooling fan. Therefore, the description of the configuration is omitted.

When the cooling effect is insufficient, the cooling fan is operated to measure temporary lamp cooling. Alternatively, the cooling fan may be operated at all times. Since the cooling heat of the supplied gas is used for cooling the heat sink, the size of the cooling fan can be selected to be smaller than the conventional size. The operation of the cooling fan is controlled by a temperature sensor provided in the heat sink. This control method is the same as the flowchart showing the flow of cooling the heat sink sink of FIG. 13 described in the second embodiment. A description will be given step by step with reference to the flowchart shown in FIG.
(1) The heat sink temperature t is constantly monitored.
(2) The cooling fan is rotated at a temperature equal to or higher than the heat sink temperature t3 (corresponding to the point A in FIG. 13B).
(3) By rotating the cooling fan, the heat sink is cooled, and the heat sink temperature t gradually decreases.
(4) Accordingly, the heat sink temperature t being monitored gradually decreases, and the cooling fan is stopped when the heat sink temperature t is lower than the cooling fan stop operating temperature T4 (point B in FIG. 4B).

Here, if the heat sink temperature t does not decrease even when the cooling fan is operated for a certain time or longer, the power source of the light source device is turned off to protect the light source.
According to the third embodiment, by providing a small cooling fan, it is possible to assist cooling when the air supply gas is exhausted. In addition, the operating life of the lamp is extended by increasing the cooling effect.

Since the evaporative cooling heat is also used for cooling the heat sink, the cooling fan does not always operate, so that the frequency of dust collecting in the blowout holes is reduced and the maintainability is improved.
[Embodiment 4]

In the first embodiment and the second embodiment, the heat sink is cooled by the heat conductive plate, but in this embodiment, a heat exchanger is used.
FIG. 14 is a schematic diagram showing a light source cooling system in the fourth embodiment. The light source cooling system 401 includes a heat exchanger 405 in a mounting base portion 404 of the primary pressure reducing valve 402 and the secondary pressure reducing valve 403, circulates the refrigerant in the circulation pipe 407 using a small circulation pump 406 as a drive source, and heat sink Cool 408a and 408b. The circulation pump 406 is connected to the control board 409 by an electric signal line (not shown). The circulation pump 406 performs control to operate when a heat sink temperature detected by a temperature detection sensor (not shown) provided in the heat sinks 408a and 408b is higher than a preset temperature.

Other configurations are the same as those in the first and second embodiments, and thus description thereof is omitted.
The operation will be described below with reference to FIGS.

  As shown in FIG. 14, the heat exchange flow of the light source cooling system 401 is a flow in which the primary pressure reducing valve 402 and the secondary pressure reducing valve 403 are cooled by the heat of vaporization and the heat exchanger 405 is cooled. The circulation pump 406 is operated, and the refrigerant in the circulation pipe 407 is circulated. Starting from the heat exchanger 405, the refrigerant circulated from the heat exchanger 405 is branched into two just before the heat sinks 408a and 408b, and sent to the heat sinks 408a and 408b, respectively. The refrigerant heated in the heat sinks 408a and 408b and the refrigerant cooled via the circulation pipe 407 in the heat sinks 408a and 408b take the heat amount of the heat sinks 408a and 408b and cool it. The warmed refrigerant exits the heat sinks 408a and 408b, and is recombined and sent to the heat exchanger 405. On the other hand, the warmed refrigerant is cooled again via the heat exchanger 405. The above flow is circulated.

FIGS. 15A and 15B are explanatory diagrams of the light source cooling system in the fourth embodiment. FIG. 15A is a perspective view of the light source cooling system, and FIG. 15B is a cross-sectional view showing the primary pressure reducing valve and the secondary pressure reducing valve. is there.
As shown in FIG. 4B, the primary pressure reducing valve 402 and the secondary pressure reducing valve 403 are covered with a heat insulating cover 409 and fixed to the base 410. The inside of the heat insulating cover 409 covers the primary pressure reducing valve 402 and the secondary pressure reducing valve 403 with the heat conductor 411, and the heat of vaporization generated in the casings of the pressure reducing valves 402 and 403 is transferred to the lower part of the primary pressure reducing valve 402 and the secondary pressure reducing valve 403. Conduction is performed by the heat conductor 411 to the heat exchanger 405 provided. Here, the circulation pipe 407 in which the refrigerant is sealed is preferably a pipe having high electrical insulation. The circulation pipe 407 is heat-insulated, and it is preferable to reduce heat loss during circulation as much as possible. If the evaporative cooling heat can be efficiently conducted to the heat sink 408, the heat sink 408 can be cooled without operating the circulation pump.

  FIG. 16 is an explanatory view showing a heat exchanger according to Embodiment 4, in which FIG. 16 (a) is a partial perspective view showing the heat exchanger, and FIG. 16 (b) is a cross-sectional view showing the heat exchanger. As shown in the figure, the shape of the heat exchanger 405 integrated with the pressure reducing valve is formed of, for example, a member such as aluminum or a cylinder having high thermal conductivity, and the distance in the heat exchanger 405 is increased as the refrigerant pipe 412. The structure allows efficient heat exchange. In particular, heat loss can be suppressed by making the casing portions of the pressure reducing valves 402 and 403 and the heat exchanger 405 the same casing. As the shape of the heat exchanger 405, a bellows shape, a spiral pipe, or the like may be used. A refrigerant is injected into the refrigerant pipe 412 of the heat exchanger 405, and the refrigerant is circulated by a circulation pump. The heat exchanger 405 is provided with a pump side pipe connection port 413 and a lamp side pipe connection port 414 on the circulation pump side and the lamp side, respectively.

  FIGS. 17A and 17B are explanatory views showing a heat sink according to the fourth embodiment. FIG. 17A is a schematic perspective view showing the heat sink, and FIG. 17B is a cross-sectional view showing the heat sink. The heat sink 408 is provided with a heat exchange pipe 415 so that the distance in the heat sink 408 is long so that the cooling process can be performed efficiently. In particular, since the lamp housing 416 of the heat sink 408 becomes hot, the heat exchange pipe 415 is preferably provided in the vicinity of the lamp housing 416 as much as possible. The heat sink 408 is provided with a temperature detection sensor (not shown), and this temperature detection sensor is electrically connected to the control board, and the temperature of any one of the heat sinks 408 exceeds a preset threshold temperature. In some cases, the circulation pump is operated.

FIG. 18 is a flowchart showing a flow of cooling the heat sink in the fourth embodiment, and a characteristic diagram showing a relationship between time and heat sink monitoring temperature. The flowchart shown in FIG.
(1) The heat sink temperature t is constantly monitored.
(2) When the heat sink temperature t reaches the circulating pump “ON” temperature operating temperature T5 (point (b) in the figure), the process proceeds to (3).
(3) By turning the circulation pump “ON”, the heat sink is cooled, and the heat sink temperature t being monitored gradually decreases.
(4) When the heat sink temperature t falls to the circulating pump “OFF” operating temperature T6 (point B in FIG. 4B), the process proceeds to (5).
(5) Turn off the circulation pump and return to the monitoring state of (1).

  Here, the reason why two circulation pump drive temperatures are provided, namely, drive start and drive stop, is to prevent chattering operation (operation in which the signal repeats ON / OFF) of the circulation pump operation due to a minute change in temperature. It is.

  As described above, the heat of the heat sink of the light source device can be taken away and the heat sink of the light source device can be cooled by circulating the heat of cooling the pressure reducing valve of the air supply device through the heat exchanger.

According to the fourth embodiment, similarly to the first and second embodiments, the cooling fan of the light source device is not necessary, and the space of the device can be saved.
In addition, by operating the circulation pump, reliable lamp cooling is possible, and the lamp life is improved.
[Embodiment 5]

  In the first to fourth embodiments, the light source cooling system as an integrated structure of the air supply device and the light source device has been described. Generally, devices used during surgery or examination such as the air supply device and the light source device are as follows. Many cases are installed in medical trolleys and ceiling suspension systems. A system controller that centrally controls and controls each device is also mounted in the medical trolley or ceiling suspension system.

In the present embodiment, an endoscope system in which a light source cooling system, a medical trolley, and a system controller are integrated will be described.
In general, when a peripheral device is mounted on a medical trolley, the system controller is mounted at the lowest level. This is because the operation screen and display screen of the system controller are arranged at a position different from the system controller main body as shown in FIG. 1 to improve the workability of the operator and the visibility of display contents. This is because the mounting position relationship of the system controller body is not regarded as important. On the other hand, the air supply device is often arranged on the top plate to prevent the backflow of blood and physiological saline from the abdominal cavity. In sub-abdominal surgery, since the abdominal pressure is an important parameter for securing the visual field during the procedure, the air supply device is generally arranged on the top plate so that the set value can be easily grasped.

  Further, the light source device and the video processor are generally set to a height of about 1000 mm from the floor surface according to the height of the doctor's arm because of the wiring length with the camera head. The mounting position of other peripheral devices varies depending on the device and environment to be used, and needs to be able to be changed flexibly according to the needs of doctors and assistants. For this reason, when each peripheral device is controlled by the system controller, it is necessary to set a long communication cable for electrically connecting the system controller and each peripheral device in advance. The wiring of the medical trolley is extremely complicated because the surplus wiring is arranged. In addition, a space for housing the cable is required, which leads to an increase in the size of the medical trolley and presses the surgical environment.

  FIG. 19 is a front view showing an endoscope system according to the fifth embodiment. The medical trolley casing 502 of the endoscope system 501 is provided with a caster 503 that can freely operate, and can freely move in an operating room or an examination room. Further, an endoscope display panel 504 can be mounted, and a panel fixing arm (not shown) is attached. A display panel 506, a concentrated power source 507, and the like are provided as a front panel 505 at the upper front of the medical trolley casing 502. Further, a touch panel or the like may be provided. In actual use, the front panel 505 of each peripheral device is generally arranged facing the patient bed.

  A plurality of trolley shelves 508 are provided in the medical trolley casing 502 and can be fixed at a desired position. A peripheral device 509 is mounted on the trolley shelf 508. A power transformer 510 that supplies power to each device to be mounted is provided at the bottom of the medical trolley casing 502. The power transformer 510 includes a central power switch (not shown) that can turn on / off the central power source 507.

  The light guide connector 511 is provided on the front panel 505. The position of the light guide connector 511 may be arranged, for example, at a position with a floor height of 1000 mm so that a scope (not shown) used in endoscopy can be easily operated.

  The air supply device is provided with an abdominal pressure display and an air supply flow rate setting value display on the front panel 505 so that the pressure in the abdominal cavity can be easily grasped during the operation. An insufflation gas inlet port 512 and an insufflation gas outlet port 513 of the insufflation device are provided in front of the front panel 505 so as to be on the patient bed side. The positions of the gas supply gas ports 512 and 513 are provided on the upper portion of the medical trolley casing 502 so that blood in the abdominal cavity and physiological saline used for washing do not flow back via an air supply tube (not shown). The air supply gas cylinder 514 is installed on a cylinder holder 515 attached to the medical trolley casing 502, and is attached to the medical trolley casing 502 by a fixing belt (not shown). It is preferable that the fixing belt can be easily tightened and released, and can be replaced quickly when the air supply gas is exhausted during the examination or operation. The air supply gas cylinder 514 is connected to an air supply gas inlet port 512 provided in the medical trolley housing 502 via a high-pressure hose 516. Although not shown, the gas supply gas inlet port 512 is provided with a gas supply gas switching valve, and when the gas supply gas cylinder 514 is exhausted, it can be switched to another gas supply gas cylinder mounted on the medical trolley housing 502. It is preferable that it is such.

  Further, by providing a trolley shelf 508 capable of freely changing the mounting position between the upper and lower mounting portions of the medical trolley casing 502, peripheral devices such as a video processor and a VTR can be mounted according to the doctor's request. It becomes possible.

FIG. 20 is a schematic diagram illustrating an endoscope system according to the fifth embodiment. The configuration of the endoscope system 501 is roughly divided into an upper mounting portion 517 and a lower mounting portion 518.
The upper mounting portion 517 is provided with a heat sink unit 519 such as a light source lamp. In addition, a primary pressure reducing valve 520 and a secondary pressure reducing valve 521 are provided as air supply devices, and the high pressure air supply gas supplied from the air supply gas cylinder 514 is decompressed. In addition, an air supply pressure gauge 540 that measures intra-abdominal pressure and an air supply valve 522 that opens and closes according to the intra-abdominal pressure are provided. A relief valve 523 is provided when it is desired to reduce the intra-abdominal pressure.

  The lower mounting portion 518 is provided with an endoscope system control base 524. The endoscope system control board 524 also includes a system controller control board that performs centralized control by electrically connecting peripheral devices including an air supply device and a light source device.

The base layout of the endoscope system such as the system controller, the air supply device, and the light source device is an example, and the base may be distributed as necessary, and the configuration is not limited.
FIG. 21 is a perspective view perspectively showing the endoscope system according to the fifth embodiment. The shelf-integrated system controller housing 525 of the endoscope system 501 has a structure also used as a medical trolley, and a peripheral device such as a VTR can be mounted thereon. Therefore, shelf reinforcing ribs 526 serving as a shelf structure are provided on the upper surface of the shelf-integrated system controller housing 525. In addition, a shelf guard 527 is provided in the square so that the shock can be absorbed even if the endoscope system 501 collides with a facility wall or the like during transportation. In addition to the centralized power supply 507 described in the explanation of FIG. 19, the system controller main switch 528 of the shelf-integrated system controller housing 525 is provided, and the power can be turned on / off by the shelf-integrated system controller housing 525 alone. . The system controller main switch 528 is provided with a system controller main switch guard 529 for protecting the switch.

  The system controller control board 530 is provided inside the shelf-integrated system controller housing 525. Each device communication connector 531 is provided on the back surface of the system controller control board 530 so as to communicate with each peripheral device. Communication with each peripheral device is performed by, for example, an RS-232C cable. The shelf-integrated system controller housing 525 is also provided with an air supply device control board 531 and a light source device control board 532 between the system controller control board 530 and a board connecting the board, for example, a BtoB connector. It is possible to connect with the connector 533, or you may connect between board | substrates using the flat cable which is not shown in figure.

  The display panel 534 and the operation button 535 provided in the system controller board 530 and the upper mounting portion 517 are connected by a wiring (not shown) and can be controlled via the system controller control board 530. The upper mounting portion 517 is provided with a heat exhaust slit 536 for exhaust heat. The thermal exhaust slit 536 has a shape as shown in the sectional view, and enhances the cooling effect inside the upper mounting portion 517.

  Power is supplied to the system controller control board 530 by a power connector 537 provided on the back surface. For mounting peripheral devices, the medical trolley column 538 is provided with a plurality of shelf fixing screw holes 539, and the peripheral device mounting position can be freely set.

  Since the operation in the fifth embodiment is the same as that in the first to fourth embodiments, a description thereof will be omitted. As shown in FIG. 20, the casings of the primary pressure reducing valve and the secondary pressure reducing valve are in thermal contact with the heat conducting plate, and the vaporization cooling heat generated during the cooling of the high-pressure air supply gas is conducted to the heat sink unit. To cool down. The heat sink unit is provided with a temperature detection sensor, and when the heat sink is not sufficiently cooled during normal operation, the relief valve is operated. If the cooling is not sufficiently performed, the temperature detection sensor detects an abnormal temperature rise of the heat sink, and displays a warning of the heat sink temperature rise and temporarily stops the operation of the light source device.

  According to the fifth embodiment, in addition to the effects of the first to fourth embodiments, the air supply device and the light source device are integrated and the medical trolley is incorporated, so that the housing frame that is provided individually is not necessary. Thus, space saving is possible.

In addition, by mounting the control base on the lower part of the medical trolley, the weight distribution of the upper mounting part can be distributed to the lower mounting part to lower the center of gravity, which stabilizes the weight balance of the medical trolley.
[Embodiment 6]

The present embodiment is an application of the fifth embodiment and improves the increase in size of the medical trolley due to the surplus cable inside the medical trolley.
FIG. 22 is a schematic diagram illustrating a back surface portion of the system controller according to the sixth embodiment. On the rear surface of the system controller housing 602, a power supply connector 603 for supplying power and a communication port 604 for realizing communication with each peripheral device are provided. Communication with each peripheral device includes, for example, a communication method based on the RS-232C method.

  The communication port 604 and a communication port of each peripheral device (not shown) are connected by a communication cable. As described above, since the layout of each peripheral device varies depending on the needs of the doctor and the surgical environment, the communication cable has to be set longer in advance. For this reason, surplus wiring has accumulated in the medical cart, and the medical trolley has been enlarged due to the complexity of the wire-laying work and the need for a space for storing the wiring.

  FIG. 23 is a rear view showing the endoscope system according to the sixth embodiment. A system controller housing 602 is provided at the bottom of the medical trolley housing 605, and a light source cooling system 616 integrated with the air supply device and the light source device is provided at the top. Each housing is firmly fixed by a trolley column 606. Further, a trolley shelf 607 is provided in the middle of the trolley column 606, and for example, a video processor 608 is mounted. In addition, peripheral devices such as a VTR 609 and a printer 610 are mounted on the system controller housing 602.

  For the medical trolley post 606, an aluminum drawing material is generally used. For this reason, the drawing material has a hollow structure. The drawing material is provided with openings at the cable inlet / outlet portions, and the signal cable is passed through the inside. The cable entrance is provided inside the system controller housing 602. The cable outlet is provided near the position where the trolley shelf 607 is frequently attached, and a remote communication connector 611 is provided. A remote communication connector 611 and a peripheral device to be mounted are connected by a short communication cable 612.

  Further, a system controller communication connector 613 is also provided on the back surface of the system controller housing 602, and the distance between the communication connector 614 on the back of the mounted peripheral device and the system controller communication connector 613 is set to the system with respect to the remote communication connector 611. If the distance to the controller communication connector 613 is shorter, the controller communication connector 613 is connected. In addition, although the support | pillar of the medical trolley was used as the drawing | extracting material, when wiring cannot be penetrated inside a support | pillar, you may carry out with the bundle band etc. which bundle a communication cable on the support | pillar side surface. By setting the wiring length to the relay connector as a required length, no surplus cable is generated, and even if the wiring is fixed to the medical trolley column, the space occupation amount inside the medical trolley is small.

The sixth embodiment is configured as described above, and the operation will be described below while omitting it.
A typical signal cable is 1500 mm to 2000 mm. By relaying the remote communication connector 611 with the medical trolley housing 605, the short communication cable length can be set to about 500 mm, for example. The position of the remote communication connector 611 is, for example, an intermediate height of the medical trolley post 606. Since the position from the system controller housing 602 to the remote communication connector 611 is fixed, the length of the relay cable 615 only needs to be prepared and there is no extra wiring.

Further, the heat sink cooling of the light source device can apply the techniques of the first to fourth embodiments, and a description thereof will be omitted.
According to the sixth embodiment, in addition to the same effects as those of the first to fourth embodiments, the medical trolley post is provided with the relay connector, so that the redundant cable of the communication cable becomes unnecessary, and the medical trolley The back is organized and the setup time can be reduced. Moreover, the cost of cables can be reduced by eliminating the need for redundant cables.

In the embodiment, the medical trolley has been described, but the same technique can be applied to the ceiling suspension system.
Further, in the embodiment, in order to reduce the height direction, a structure using a heat conductive plate is used. However, when there is no restriction in the height direction, the primary pressure reducing valve and the secondary pressure reducing valve are electrically insulated. You may provide in the upper part or lower part of a heat sink directly via the heat conductor which has. Or you may arrange | position directly on the side surface of a heat sink.
(Appendix 1)
In the endoscope light source device, there is a mechanism for cooling the light source lamp,
In the endoscope air supply device, there is a pressure reducing valve for reducing the pressure of the high pressure air supply gas,
The light source lamp cooling mechanism has means for conducting heat of vaporization cooling generated when the high-pressure air-supplying gas is depressurized,
The heat conducting means is a heat conducting plate having at least a high thermal conductivity,
Alternatively, a circulation mechanism for circulating the refrigerant, wherein the heat conducting means has a heat insulating means,
An endoscope system characterized in that the light source device and the air supply device are integrated into a single casing.
(Appendix 2)
The endoscope system according to appendix 1, wherein
There is a detecting means for detecting the temperature of the light source lamp cooling mechanism,
According to the detection result by the detection means, there is a control means for controlling opening and closing of the air supply device relief valve connected to the pressure reducing valve of the air supply device,
The endoscope system according to claim 1, wherein the relief bulb has means that can blow to the light source lamp cooling mechanism, and the light source device and the air supply device are integrated into a single housing.
(Appendix 3)
The endoscope system according to appendix 1 or appendix 2,
A system controller that communicates and controls medical devices used in endoscopy or endoscopic surgery;
In a medical cart or ceiling suspension device equipped with the above system controller,
An endoscope system, wherein a housing of the light source device, the air supply device, and the system controller is integrated with a medical cart or a ceiling suspension device.
(Appendix 4)
In the endoscope system according to appendix 1 to appendix 3,
In the system in which the communication connector of the system controller is provided in advance in the column of the medical cart or the ceiling suspension system,
Means for communicating between the communication connector and a peripheral device mounted thereon;
An endoscope system having means for communicating with a system controller via the communication connector.

It is a schematic perspective view of an endoscope system. It is the schematic which shows the internal structure of an air_supply apparatus. It is the schematic which shows the internal structure of a light source device. 2 is an explanatory diagram illustrating a light source cooling system in Embodiment 1. FIG. FIG. 3 is an explanatory diagram showing a main part of the light source cooling system in the first embodiment. FIG. 1A is a perspective view, and FIG. FIG. 3 is a cross-sectional view showing a heat sink and a lamp of the light source cooling system in the first embodiment. FIG. 3 is a cross-sectional view showing a heat conductive plate in the first embodiment. 4 is a flowchart showing a flow of cooling the heat sink in the first embodiment. FIG. 10 is a schematic diagram showing a light source cooling system in a second embodiment. FIG. 10 is a perspective view showing a light source cooling system in a second embodiment. It is explanatory drawing which shows the heat sink unit in Embodiment 2, The figure (a) is explanatory drawing which shows before a slide, The figure (b) is explanatory drawing which shows after a slide. 10 is a schematic diagram illustrating an example of a heat sink unit fixing mechanism in Embodiment 2. FIG. FIG. 6 is a flowchart showing a flow of cooling a heat sink in Embodiment 2, and a characteristic diagram showing a relationship between a time course and a monitoring temperature of the heat sink. FIG. 10 is a schematic diagram showing a light source cooling system in a fourth embodiment. It is explanatory drawing of the light source cooling system in Embodiment 4, The figure (a) is a perspective view of a light source cooling system, The figure (b) is sectional drawing which shows the attachment base part of a primary pressure-reduction valve and a secondary pressure-reduction valve. is there. It is explanatory drawing which shows the heat exchanger in Embodiment 4, The figure (a) is a partial perspective view which shows a heat exchanger, The figure (b) is sectional drawing which shows a heat exchanger. It is explanatory drawing which shows the heat sink in Embodiment 4, The figure (a) is a schematic perspective view which shows a heat sink, The figure (b) is sectional drawing which shows a heat sink. It is a flowchart which shows the flow which cools the heat sink in Embodiment 4, and the characteristic view which shows the relationship between the time course and the monitoring temperature of a heat sink. It is a front view which shows the endoscope system in Embodiment 5. FIG. 10 is a schematic diagram illustrating an endoscope system according to a fifth embodiment. It is a perspective view which shows the light source cooling system in Embodiment 5 transparently. FIG. 20 is a schematic diagram showing a back surface portion of a system controller in a sixth embodiment. It is a rear view which shows the endoscope system in Embodiment 6.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Endoscopic operating room 2 1st endoscope system 3 2nd endoscope system 11 Endoscope display panel 12 1st medical trolley 13 High frequency treatment apparatus 14 Air supply apparatus 15 Light source apparatus 16 Endoscope Video processor 17 VTR (video tape recorder)
18 Gas cylinder 19 Patient bed 20 Separate endoscope display panel 21 First centralized display device 22 System controller 23 Wired remote controller 24 Wireless remote controller 25 Second medical trolley 26 Light source device 27 Endoscopic video processor 28 Relay unit 29 Relay cable 30 Patient 31 First camera head 32 Second camera head 33 Operation panel 34 Ultrasonic coagulation incision treatment device 35 Endoscope display panel 36 Second centralized display device 40 Trolley shelf 41 Trolley top plate 42 Trolley shelf 43 Trolley top plate 50 Patient 51 Air supply device 52 Air supply line 53 Primary pressure reducing valve 54 Secondary pressure reducing valve 55 Manifold 56 Air supply valve 57 Air supply pressure gauge 58 Supply pressure gauge 59 Flow meter 60 Air supply gas cylinder 61 High Hose 62 Drive base 63 Control base 71 Light source device 72 Light guide cable 72a Light guide connector 72b End face 73 Lamp 74 Illumination lens 75 Heat sink 76 Base 77 Power supply unit 101 Light source cooling system 102 Light guide connector 102a Light guide 102b End face 103 Lamp 103a Lamp electrode 103b Lamp electrode 104 Illuminating lens 105 Diaphragm mechanism 106 Front panel 106a Display screen 106b Operation switch 107 Control board 108 Heat sink 109 Gas input port 110 Piping tube 111 Primary pressure reducing valve 112 Secondary pressure reducing valve 113 Gas supply detection sensor 114 Manifold 116 Air supply valve 117 Air supply cap 118 Air supply tube 119 Relief valve 120 Power switch 121 Conductive connection 122 Electrical insulating thermal conductor 123 Thermal conductive plate 124 Thermal conductive plate 125 Base 126 Thermal conductor 127 Heat insulation cover 201 Light source cooling system 202 Heat sink 203 Temperature detection sensor 204 Piping tube 205 Primary pressure reducing valve 206 Secondary pressure reducing valve 207 Main system 208 Cooling system 208a End 209 Air supply valve 210 Relief valve 211 Air supply pressure gauge 212 Cooling valve 213 Heat sink fixing stay 214 Fixing block 215 Base 216 Heat sink unit 217 Heat sink unit fixing mechanism 218 Positioning block 219 Heat sink press 220 Heat sink press stay 221 Control base 401 Light source cooling system 402 Primary pressure reducing valve 403 Secondary pressure reducing valve 404 Mounting base 405 Heat exchange 406 Circulating pump 407 Circulating piping 408 Heat sink 408a Heat sink 408b Heat sink 409 Control base 410 Base 411 Thermal conductor 412 Refrigerant piping 413 Pump side piping connection port 414 Lamp side piping connection port 415 Heat exchange piping 416 Lamp housing 501 Endoscope system 502 Medical trolley housing 503 Caster 504 Endoscope display panel 505 Front panel 506 Display panel 507 Centralized power supply 508 Trolley shelf 509 Peripheral device 510 Power transformer 511 Light guide connector 512 Air supply gas inlet port 513 Air supply gas outlet port 514 Air supply Gas cylinder 515 Cylinder holder 516 High pressure hose 517 Upper mounting part 518 Lower mounting part 519 Heat sink unit 520 Primary pressure reducing valve 21 Secondary pressure reducing valve 522 Air supply valve 523 Relief valve 524 Endoscope system control base 525 Shelf integrated system controller housing 526 Shelf reinforcement rib 527 Shelf guard 528 System controller main switch 529 System controller switch guard 530 System controller control base 531 Air supply device control base 532 Light source device control base 533 Connector between bases 534 Display panel 535 Operation button 536 Heat exhaust slit 537 Power supply connector 538 Medical trolley post 539 Shelf fixing screw hole 540 Air supply pressure gauge 601 Endoscope system 602 System Controller housing 603 Power connector 604 Communication port 605 Medical trolley housing 606 Medical trolley post 607 Trolley shelf 608 Video processor 609 TR
610 Printer 611 Remote communication connector 612 Short communication cable 613 System controller communication connector 614 Peripheral device communication connector 615 Relay cable 616 Light source cooling system

Claims (12)

A light source;
High pressure gas decompression means for decompressing the high pressure gas;
A heat transfer means having heat insulation means for transmitting the cooling action generated by the high pressure gas decompression means to the light source;
A light source cooling system comprising:   2. The light source cooling system according to claim 1, wherein the heat transfer means supplies a first conductor for supplying electricity to the first electrode of the light source and electricity to the second electrode. A light source cooling system comprising a second conductor, wherein the first conductor and the second conductor are arranged with a predetermined clearance.   3. The light source cooling system according to claim 1, wherein the heat transfer means is made of an insulator.   The light source cooling system according to claim 1, wherein the heat transfer means is a heat conductor.   2. The light source cooling system according to claim 1, wherein the heat transfer means is a fluid circulation. An endoscope system using the light source cooling system according to any one of claims 1 to 5,
The endoscope system according to claim 1, wherein the high-pressure gas decompression means is a decompression valve for decompressing the high-pressure gas in the endoscope air-feed device. The endoscope system according to claim 6,
Temperature detection means of the light source;
A relief valve opening / closing control means for controlling the opening / closing of a relief valve for adjusting the pressure of the air supply device according to the detection result of the temperature detection means;
An endoscope system characterized by comprising:   The endoscope system according to claim 6 or 7, wherein the light source cooling system is an integral casing.   The endoscope system according to any one of claims 6 to 8, wherein the light source cooling system is an integrated medical trolley.   The endoscope system according to any one of claims 6 to 9, wherein cables of various devices to be mounted are connected to relay connectors provided at a plurality of locations of the medical trolley. Endoscope system.   The endoscope system according to any one of claims 6 to 8, wherein the light source cooling system is integrated with a ceiling suspension system.   The endoscope system according to any one of claims 6 to 8 and claim 11, wherein cables of various devices to be mounted on relay connectors provided at a plurality of locations of the ceiling suspension system. An endoscope system characterized by being connected.

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