WO2017057030A1 - Ventilateur de fumée de type à circulation - Google Patents

Ventilateur de fumée de type à circulation Download PDF

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Publication number
WO2017057030A1
WO2017057030A1 PCT/JP2016/077318 JP2016077318W WO2017057030A1 WO 2017057030 A1 WO2017057030 A1 WO 2017057030A1 JP 2016077318 W JP2016077318 W JP 2016077318W WO 2017057030 A1 WO2017057030 A1 WO 2017057030A1
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WIPO (PCT)
Prior art keywords
filter
smoke
circulation
pump
gas
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PCT/JP2016/077318
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English (en)
Japanese (ja)
Inventor
都敏 平賀
古川　喜之
本間　聡
青野　進
孝則 牛島
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オリンパス株式会社
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Priority to JP2017527947A priority Critical patent/JPWO2017057030A1/ja
Publication of WO2017057030A1 publication Critical patent/WO2017057030A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M13/00—Insufflators for therapeutic or disinfectant purposes, i.e. devices for blowing a gas, powder or vapour into the body

Definitions

  • Embodiments of the present invention relate to a circulation smoke exhaust device, and more particularly, to a circulation smoke exhaust device that controls the output of a circulation pump during circulation smoke treatment.
  • endoscopes have been widely used for diagnosis and treatment of diseases in the medical field.
  • An operator can perform diagnosis and treatment while inserting an endoscope into a patient's body and viewing an image obtained by the endoscope.
  • it is also used for medical procedures in the abdominal cavity where a trocar is punctured.
  • an endoscope is inserted into the abdominal cavity through one of two trocars pierced on the patient's body wall, and a treatment tool is inserted into the patient's abdominal cavity through the other trocar.
  • the treatment tool is operated while viewing the mirror image to treat the affected area in the abdominal cavity.
  • a predetermined gas such as carbon dioxide gas is supplied into the abdominal cavity of the patient by an air supply device, and the affected part is observed and treated in the space formed by the air supply.
  • an electric knife or ultrasonic treatment tool is used, smoke or mist is generated when cauterizing the affected area, and the surgical field by the endoscope is obstructed. End up.
  • a smoke exhausting process in the abdominal cavity is generally performed by a suction device (see, for example, Japanese Patent Laid-Open No. 5-329164).
  • the smoke treatment method described in Japanese Patent Laid-Open No. 5-329164 discloses a method of sucking a gas containing smoke or mist from a body cavity from a body cavity by a suction device, while supplying a carbon dioxide gas of the same amount as the suction amount from the air feeding device. Smoke is exhausted by sending air into the body cavity.
  • it is difficult to control the suction device and the air supply device so that the suction amount from the body cavity and the air supply amount to the body cavity are the same, and the balance between suction and air supply is lost.
  • the body cavity pulsates, causing trouble in observation and treatment. Further, during the flue gas treatment, since it is necessary to continue to feed carbon dioxide from the air feeding device, the consumption of carbon dioxide increases and the cost increases.
  • a circulation-type smoke exhaust device that removes smoke and mist from the carbon dioxide gas sucked from inside the body cavity using a filter, and performs a smoke exhaustion process by sending carbon dioxide gas into the body cavity again.
  • a flue gas treatment with a circulating smoke exhaust device as described in Japanese Special Table 2013-505812, it is easy to control the balance between suction and air supply and prevent the body cavity from pulsating Can do.
  • the carbon dioxide sucked from the body cavity is again fed into the body cavity, the amount of carbon dioxide used can be reduced.
  • the filter is gradually clogged by the removed smoke and mist.
  • the flow rate of the carbon dioxide to be circulated is lowered and the smoke emission efficiency is deteriorated.
  • the circulation is stopped and the procedure must be interrupted.
  • the present invention detects the degree of clogging of the filter sequentially, controls the rotational speed of the pump according to the degree of clogging, and maintains the gas circulation rate, thereby preventing the deterioration of the exhaust efficiency.
  • An object is to provide a smoke device.
  • the circulation smoke exhaust apparatus of one aspect of the present invention is a circulation smoke exhaust apparatus that sends a predetermined gas and sucks the smoke generated in the subject together with the gas in the subject to circulate and exhaust the smoke.
  • a pump for circulating the gas ; an air supply conduit connected to the pump for supplying the gas to the subject; an aspiration conduit connected to the pump for sucking the gas from the subject; and the suction tube
  • the clogging state monitoring unit for monitoring the clogging state of the filter
  • the clogging state display unit for displaying the clogging state of the filter
  • the clogging state monitoring unit And a pump controller for controlling the output of the pump.
  • FIG. 3 is a block diagram illustrating an example of the configuration of the circulation device 2.
  • FIG. 9 is a flowchart for explaining an insufflation and circulation smoke exhausting operation according to the second embodiment. The figure explaining another example of the whole structure of the surgery system containing the circulation smoke exhaust apparatus concerning the 2nd Embodiment of this invention.
  • FIG. 10 is a flowchart for explaining an insufflation and circulation smoke exhaustion operation in the operation system shown in FIG. 9.
  • FIG. 10 is a flowchart for explaining an insufflation and circulation smoke exhaustion operation in the operation system shown in FIG. 9.
  • FIG. 1 is a diagram illustrating an example of the overall configuration of a surgical system including a circulation smoke exhausting apparatus according to the first embodiment of the present invention.
  • the surgical operation system according to the present embodiment uses a treatment instrument such as an electric knife 11 to treat an affected area in the abdominal cavity of a patient expanded by supplying carbon dioxide gas or the like under endoscopic observation. Used in surgery to treat.
  • the abdominal wall of the patient 14 is punctured with an air supply trocar 12a, a treatment instrument insertion trocar 12b, and a suction trocar 12c.
  • the endoscope 10 is inserted into the abdominal cavity through the trocar 12a, and the electric knife 11 is inserted into the abdominal cavity through the trocar 12b.
  • the endoscope 10 is connected with a light source device 4 and a processor 5.
  • the light source device 4 guides the light emitted from the semiconductor light source by the light guide member, converts the color, the light intensity distribution, and the like by the light conversion member provided at the tip of the light guide member, and illuminates the endoscope 10. Supply light.
  • the processor 5 supplies a power supply voltage to the endoscope 10 and processes an image captured by the endoscope 10 to display it on the monitor 6.
  • the electric knife 11 is connected to the electric knife output device 3.
  • the electric knife output device 3 outputs a high-frequency current that generates high-frequency electric energy.
  • the high frequency current output from the electric knife output device 3 flows intensively to the affected tissue to generate Joule heat, and the heat causes the affected area. Incision of the tissue and hemostasis at the bleeding site are performed.
  • a gas cylinder (not shown) filled with carbon dioxide gas (CO 2 gas) is connected to the insufflation apparatus 1 for supplying a predetermined gas.
  • CO 2 gas carbon dioxide gas
  • One end of an insufflation tube 7 is connected to the insufflation apparatus 1.
  • the other end of the pneumoperitoneum tube 7 is connected to a trocar 12a punctured on the abdominal wall of the patient 14.
  • the pneumoperitoneum device 1 is configured to be able to supply carbon dioxide gas into the abdominal cavity of the patient 14 via the pneumoperitoneum tube 7 and the trocar 12a.
  • the circulation device 2 is connected to one end of a suction tube 8.
  • the other end of the suction tube 8 is connected to the trocar 12b.
  • the circulation device 2 is connected to one end of an air supply tube 9 as an air supply line capable of supplying a predetermined gas in the vicinity of the distal end of the endoscope.
  • the other end of the air supply tube 9 is connected to the trocar 12c.
  • FIG. 2 is a block diagram illustrating an example of the configuration of the circulation device 2.
  • the circulation device 2 includes a pump 20 including a pumping member 21 and a motor 22, a pump control unit 24 that controls the operation of the motor 22, a filter color detection unit 25, a pump control unit 24, and a pump control unit 24. And a power supply 23 for supplying a power supply voltage to the motor 22.
  • the pumping member 21 that performs suction and delivery of gas mainly includes a filter 211 for removing smoke from the sucked gas and a diaphragm 212 that performs suction and delivery operations of the gas to the pumping member 21.
  • the One end of the suction tube 8 and one end of the air supply tube 9 are connected to the pumping member 21.
  • the suction tube 8 and the pumping member 21 constitute a suction conduit.
  • the air supply tube 9 is not sucked by a check valve (not shown) disposed in the vicinity of the air supply tube 9 of the pumping member 21.
  • the sucked carbon dioxide gas passes through the filter 211 to remove smoke and mist.
  • the diaphragm 212 moves to the right side and the inside of the pumping member 21 becomes positive pressure, the carbon dioxide gas from which smoke and mist are removed is fed into the body cavity of the patient 14 through the air feeding tube 9.
  • air is not supplied from the suction tube 8 by a check valve (not shown) disposed near the suction tube 8 of the pumping member 21.
  • the circulation device 2 sucks carbon dioxide gas including smoke generated by using the electric knife 11 through the suction tube 8 and the trocar 12b. After the smoke and mist are removed from the carbon dioxide gas in the circulation device 2, the carbon dioxide gas is returned to the body cavity of the patient 14 via the air supply tube 9 and the trocar 12 c.
  • the motor 22 that drives the pumping member 21 is a drive source that reciprocates the diaphragm 212. As the rotational speed of the motor 22 increases, the stroke of the diaphragm 212 increases, so that the flow rate of carbon dioxide gas supplied from the circulation device 2 increases. The rotation speed of the motor 22 is controlled by the pump control unit 24.
  • the filter color detection unit 25 as a clogging state monitoring unit includes a commonly used color sensor or the like, and detects the color of the filter 211.
  • the filter color detection unit 25 irradiates the filter 211 with white light from a light source such as an incandescent lamp, receives reflected light, decomposes it into R, G, and B, and determines the color based on the ratio.
  • the color information of the filter 211 detected by the filter color detection unit 25 is input to the pump control unit 24.
  • the pump control unit 24 controls the rotation speed of the motor 22 based on the color information of the filter 211 input from the filter color detection unit 25.
  • the filter 211 is white in a fresh state before use, but changes from yellow to brown to black as the fine particles such as smoke are adsorbed and captured. That is, the color of the filter 211 changes according to the degree of filter clogging. Therefore, the pump control unit 24 determines the degree of filter clogging based on the color information of the filter 211, and controls the rotation speed of the motor 22 according to the degree of clogging.
  • the degree of clogging of the filter 211 is divided into four stages of “no clogging”, “mild”, “medium”, and “severe”, and the rotation speed of the motor 22 is controlled according to each division.
  • the degree of clogging of the filter 211 becomes very high, the circulation of the pump 20 stops, and the procedure must be interrupted. Therefore, in order to prevent an unexpected circulation stop of the pump 20, the operator is prompted to replace the filter 211 in accordance with the degree of clogging of the filter 211, and the filter can be safely replaced at a timing desired by the operator.
  • the filter 211 replacement instruction is displayed on the display unit 1a of the pneumoperitoneum apparatus 1 as the clogging state display unit.
  • the color of the filter 211 is not changed, “no clogging”, “light” if it is yellow, “medium” if it is brown, and “black”. If the color is changed, it is determined as “severe”.
  • the number of sections and the number of rotations of the motor 22 in each section are set in advance before operation according to the performance of the pump 20 and the like.
  • the rotational speed in the “no clogging” section is 2000 rpm
  • the rotational speed in the “mild” section is 3000 to 4000 rpm
  • the rotational speed in the “medium” section is 6000 rpm
  • the rotation speed in the section is set to 0 rpm (that is, the motor 22 stops rotating).
  • the color of the filter 211 serving as a determination criterion for each section is set in advance before the operation.
  • the circulating smoke exhaust device of the present embodiment controls the rotation speed of the motor 22 according to the degree of clogging of the filter 211, and by increasing the rotation speed of the motor 22 as the clogging degree increases, The circulation amount of carbon dioxide gas can be maintained, and deterioration of smoke emission efficiency can be prevented.
  • FIG. 3 is a flow chart for explaining an insufflation and circulation smoke exhaustion operation.
  • step S1 carbon dioxide gas is intermittently infused until the internal pressure of the body cavity of the patient 14 reaches the set pressure, and the stomach is inhaled.
  • the pneumoperitoneum apparatus 1 discharges carbon dioxide gas supplied from a cylinder (not shown) to the pneumoperitoneum tube 7 and supplies it into the body cavity of the patient 14 (step S1).
  • the pneumoperitoneum device 1 stops discharging carbon dioxide into the body cavity (step S2).
  • step S3 the pressure in the body cavity of the patient 14 is measured during the air supply stop period (step S3). If the measured value does not reach the preset set pressure (step S4, YES), the process returns to step S1 to continue intermittent air supply.
  • step S4 when the body cavity pressure of the patient 14 has reached a preset pressure (step S4, NO), it is determined whether or not the body cavity pressure of the patient 14 is higher than the set pressure.
  • the pneumoperitoneum apparatus 1 opens an electromagnetic relief valve (not shown) provided in the conduit between the cylinder and the pneumoperitoneum tube 7. By controlling, the gas in the cavity is relieved to the atmosphere (step S8). After a certain period of time has elapsed since the electromagnetic relief valve was opened, the insufflation apparatus 1 controls the electromagnetic relief valve to be closed to stop gas relief. Then, returning to step S3, the pressure in the body cavity of the patient 14 is measured again. The gas relief operation from step S3 to step S8 is repeated until the cavity pressure reaches the set pressure.
  • step S6 if the cavity pressure matches the set pressure (step S5, NO), it is determined that the insufflation is sufficiently performed, and the insufflation apparatus 1 outputs a circulation instruction to the circulation apparatus 2 via the communication cable, The operation moves to the circulation smoke exhaustion operation (step S6).
  • step S6 prior to the circulation smoke exhaustion operation, the rotation speed of the motor 22 is determined in order to adjust the carbon dioxide gas supply flow rate to the optimum flow rate according to the flow of FIG.
  • FIG. 4 is a flowchart for explaining the motor speed setting procedure in the circulation smoke exhaustion operation.
  • the filter clogging degree category is set to four levels of “no clogging”, “mild”, “medium”, and “severe”. If the filter 211 is discolored to yellow, it is discolored to “mild” and brown.
  • the procedure for setting the motor rotation speed will be described by using as an example the case of identifying as “medium” if it is, and “severe” if the color is changed to black.
  • the rotational speed of the motor 22 is set to a low speed (step S61).
  • the rotation speed of the motor 22 in low speed rotation is set before operation according to the performance of the pump 20 and the like.
  • the pump control unit 24 determines the degree of filter clogging (step S62).
  • the filter clogging degree corresponds to “no clogging” (step S62, NO)
  • step S62 when the color of the filter 211 is yellow or a color darker than yellow, it is determined that the degree of filter clogging is “light” or more (step S62, YES), and the rotation speed of the motor 22 is set to medium speed rotation. Set (step S63).
  • step S64 based on the color information of the filter 211 detected by the filter color detection unit 25, the pump control unit 24 again determines the degree of filter clogging (step S64).
  • the degree of filter clogging corresponds to “mild” (step S64, NO)
  • step S64 determines that the degree of filter clogging is “medium” or more (step S64, YES), and the rotation speed of the motor 22 is increased to high speed.
  • step S65 the display unit 1a of the pneumoperitoneum apparatus 1 is displayed to prompt the user to replace the filter (step S66).
  • the display for prompting filter replacement is not limited to the display unit 1a of the pneumoperitoneum device 1 and may be output to a display device (for example, the monitor 6) that is easy to touch the surgeon's eyes.
  • step S67 determines again the degree of filter clogging.
  • the degree of filter clogging corresponds to “medium” (step S67, NO)
  • step S67, YES when the color of the filter 211 is black, it is determined that the degree of filter clogging is “severe” (step S67, YES), the rotation of the motor 22 is stopped, and the circulation smoke exhaustion operation is stopped (step S68). .
  • step S6 Measure the body cavity pressure of the patient 14 at predetermined intervals even during the circulation smoke exhaustion operation. That is, when a predetermined time elapses after the motor 22 is driven at the set rotational speed in step S6, the process returns to step S3 to measure the body cavity pressure of the patient 14.
  • the circulation device 2 stops the motor 22 and stops the circulation smoke emission operation (step S9).
  • the circulation device 2 outputs an insufflation instruction to the pneumoperitoneum device 1 via a communication cable.
  • the pneumoperitoneum apparatus 1 performs a series of insufflation / pneumothorax operations from step S1 to step S3 until the cavity pressure reaches a preset set pressure.
  • step S4 when the body cavity pressure of the patient 14 has reached a preset pressure (step S4, NO), it is determined whether or not the body cavity pressure of the patient 14 is higher than the set pressure.
  • the circulation device 2 stops the motor 22 and stops the circulation smoke exhaustion operation (step S7).
  • the circulation device 2 outputs a relief instruction to the pneumoperitoneum device 1 via the communication cable.
  • the pneumoperitoneum apparatus 1 opens an electromagnetic relief valve (not shown) provided in a conduit between the cylinder and the pneumoperitoneal tube 7 to open the relief gas to the atmosphere (step S8). .
  • step S3 the insufflation apparatus 1 controls the electromagnetic relief valve to be closed to stop gas relief. Then, returning to step S3, the pressure in the body cavity of the patient 14 is measured again. The gas relief operation from step S3 to step S8 is repeatedly performed until the cavity pressure reaches the set pressure.
  • the degree of clogging of the filter 211 is determined from the color information of the filter 211, and the rotation speed of the motor 22 is increased as the degree of clogging increases.
  • the circulation amount of carbon dioxide gas can be maintained, and deterioration of smoke emission efficiency can be prevented.
  • the degree of clogging of the filter 211 becomes high and it becomes difficult to control the circulation amount based on the rotation speed, the operator can safely filter at a desired timing by displaying the replacement of the filter 211 and issuing an alarm to the surgeon. Can be replaced, and an unexpected circulation stop of the pump 20 can be prevented.
  • the one end of the air supply tube 9 is connected to the trocar 12c, and the carbon dioxide gas subjected to the flue gas treatment is supplied to the vicinity of the tip of the electric knife 11, but the electric knife is used.
  • 11 is not limited to the above-described configuration as long as carbon dioxide in the body cavity can be sucked from the vicinity of the distal end of 11, for example, one end of the air supply tube 9 is connected to a trocar 12 a into which the endoscope 10 is inserted.
  • the carbon dioxide gas may be supplied from the tip of the trocar 12a.
  • FIG. 5 is a block diagram illustrating another example of the configuration of the circulation device 2 ′.
  • the circulating device 2 ′ shown in FIG. 5 is different from the circulating device 2 shown in FIG. 2 in that a motor rotational speed detector 26 is used instead of the filter color detector 25.
  • the motor rotation number detection unit 26 detects the rotation number of the motor 22.
  • the detected actual rotational speed is input to the pump control unit 24.
  • the pump control unit 24 controls the drive rotation number of the motor 22 based on the actual rotation number of the motor 22 input from the motor rotation number detection unit 26.
  • the pump control unit 24 determines the degree of filter clogging based on the actual rotational speed of the motor 22, and controls the drive rotational speed of the motor 22 according to the degree of clogging.
  • the classification criterion for the degree of clogging for example, the ratio between the actual rotational speed of the motor 22 and the driving rotational speed, the degree of decrease in the actual rotational speed, or the like is used. It should be noted that the setting of the clogging degree and the setting of the driving speed in each section are the same as those of the circulation device 2 shown in FIG. The motor rotation speed setting procedure is also the same as the procedure shown in FIG.
  • FIG. 6 is a block diagram illustrating still another example of the configuration of the circulation device 2 ′′.
  • the pump control unit 24 measures the drive current of the motor 22, and detects the power consumption by calculating the product with the drive voltage of the motor 22.
  • the pump control unit 24 determines the degree of clogging of the filter 211 based on the power consumption of the motor 22 and controls the drive rotation speed of the motor 22 according to the degree of clogging.
  • the apparatus can be reduced in size and simplified.
  • FIG. 7 is a diagram illustrating an example of the overall configuration of a surgical system including a circulation smoke exhausting apparatus according to the second embodiment of the present invention.
  • the configuration of the surgical system shown in FIG. 7 is the same as that of the circulation smoke exhausting apparatus according to the first embodiment described with reference to FIG. 1 except that the processor 5 and the circulation device 2 are connected by a communication cable. It is a configuration.
  • the processor 5 analyzes the image picked up by the endoscope 10 and, when smoke is detected in a predetermined amount or more in the image, transmits a signal (smoke detection signal) indicating that smoke is detected to the circulation device 2.
  • smoke detection by image analysis is performed as follows. First, the endoscope image is binarized with white and black. A normal body cavity shows red to black but smoke shows white. If the ratio of the white area in the image exceeds a predetermined amount, it is determined that smoke has occurred in the body cavity. On the other hand, when the amount of smoke in the image is less than the predetermined amount, a signal indicating that smoke is not detected (smoke not detected signal) is transmitted to the circulation device 2.
  • the smoke detection signal / smoke non-detection signal may be continuously transmitted while the captured image is input from the endoscope 10 or only when a request from the circulation device 2 is received. You may make it do.
  • the circulator 2 When the cavity pressure of the patient 14 is inhaled at the set pressure by the pneumoperitone apparatus 1 and is in a circulatorable state, the circulator 2 receives the smoke detection from the processor 5 and drives the motor 22 to drive the patient 14. Start circulating carbon dioxide in the body cavity.
  • FIG. 8 is a flowchart for explaining an insufflation and circulation smoke exhaustion operation according to the second embodiment.
  • step S10 If the signal received from the processor 5 is a smoke detection signal (step S10, YES), the circulation device 2 proceeds to step S6 and starts a circulation smoke exhausting operation. Note that the rotation speed setting method of the motor 22 in step S6 is the same as that in the first embodiment described with reference to FIG.
  • step S10, NO when the signal received from the processor 5 is a smoke non-detection signal (step S10, NO), the process proceeds to step S11, where the motor 22 is stopped and the circulation smoke exhausting operation is stopped. Then, returning to step S3, the body cavity pressure of the patient 14 is measured to determine whether or not an insufflation operation or a circulation smoke exhaustion operation is necessary, and an insufflation or circulation smoke exhaustion operation is performed as necessary.
  • the processor 5 analyzes the image captured by the endoscope 10, detects the generation of smoke in the body cavity of the patient 14, and notifies the circulation device 2 of the smoke.
  • the circulation smoke exhaustion operation is performed only when smoke is detected in the interior, and the circulation smoke exhaustion operation is not performed when smoke is not detected. That is, it is possible to prevent a useless circulation smoke exhausting operation when there is no smoke in the cavity, and to reduce the power consumption of the circulation smoke exhausting device.
  • FIG. 9 is a diagram illustrating another example of the overall configuration of the surgical system including the circulation smoke exhausting apparatus according to the second embodiment of the present invention.
  • the surgical system shown in FIG. 9 is different from the surgical system shown in FIG. 1 in that a temperature sensor 15 is inserted into the trocar 12c in order to measure the temperature in the vicinity of the affected area where the electric knife 11 performs treatment.
  • the temperature sensor 15 is connected to the circulation device 2 via a communication cable, and the temperature measured by the temperature sensor 15 is input to the circulation device 2.
  • the pump control unit 24 of the circulation device 2 determines that the affected part has been cauterized by the electric knife 11 and drives the motor 22 to drive the patient 14. Start circulating carbon dioxide in the body cavity.
  • the temperature in the body cavity is about 37 degrees, but when the cautery is cauterized by the electric scalpel 11, the temperature in the vicinity of the affected area temporarily rises to about 40 degrees. Accordingly, when the temperature in the vicinity of the affected area exceeds, for example, 39 degrees, it is determined that cauterization has been performed, and the motor 22 is driven to remove smoke generated by the cauterization.
  • FIG. 10 is a flowchart for explaining an insufflation and circulation smoke exhaustion operation in the operation system shown in FIG.
  • steps S1 to S5 of the first embodiment shown in FIG. 3 the same procedure as steps S1 to S5 of the first embodiment shown in FIG. 3 is performed, and the abdominal cavity of the patient 14 is inhaled.
  • the cavity pressure reaches the set pressure (step S5, NO)
  • step S10 ′ YES
  • the circulation device 2 proceeds to step S6 and starts the circulation smoke exhausting operation.
  • the rotation speed setting method of the motor 22 in step S6 is the same as that in the first embodiment described with reference to FIG.
  • step S10 ′, NO the predetermined value
  • step S11 the motor 22 is stopped. Stop circulating smoke exhaustion. The temperature in the vicinity of the affected area immediately returns to the temperature before the cauterization when the cauterization is completed.
  • the motor 22 is not stopped immediately when the temperature input from the temperature sensor 15 falls below a predetermined value, but is stopped after a predetermined time has elapsed from the start of driving.
  • step S3 the body cavity pressure of the patient 14 is measured to determine whether or not an insufflation operation or a circulation smoke exhaustion operation is necessary, and an insufflation or circulation smoke exhaustion operation is performed as necessary. Note that when the stop instruction is input to the insufflation apparatus 1 and the circulation apparatus 2, the insufflation and circulation smoke exhaustion operation illustrated in FIG. 9 ends.
  • the temperature sensor 15 may be disposed at a location where the temperature near the affected area where the treatment is performed by the electric knife 11 can be monitored.
  • the temperature sensor 15 may be installed near the tip of the electric knife 11 so as not to interfere with the procedure. You may arrange
  • each “unit” in this specification is a conceptual one corresponding to each function of the embodiment, and does not necessarily correspond to a specific hardware or software routine on a one-to-one basis. Therefore, in the present specification, the embodiment has been described assuming a virtual circuit block (unit) having each function of the embodiment.
  • each step of each procedure in the present embodiment may be executed in a different order for each execution by changing the execution order and performing a plurality of steps at the same time, as long as it does not contradict its nature.
  • all or part of each step of each procedure in the present embodiment may be realized by hardware.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
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  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un ventilateur de fumée de type à circulation, qui distribue un gaz prédéterminé et aspire la fumée générée dans une cavité d'un patient (14) avec le gaz dans la cavité pour faire circuler et ventiler la fumée. Le ventilateur de fumée de type à circulation comprend : une pompe (20) pour faire circuler le gaz ; un tube de distribution de gaz (9) qui est relié à la pompe (20) et distribue le gaz à la cavité du patient (14) ; un tube d'aspiration (8) et un élément de pompage (21) qui sont reliés à la pompe (20) et aspirent le gaz dans la cavité du patient (14) depuis la cavité du patient (14) ; un filtre (211) qui est installé dans l'élément de pompage (21) et filtre le gaz ; une unité de détection de couleur de filtre (25) pour surveiller un état de colmatage du filtre (211) ; une unité d'affichage (1a) pour afficher l'état de colmatage du filtre (211) ; et une unité de commande de pompe (24) pour commander la sortie de la pompe (20) selon le résultat de surveillance par l'unité de détection de couleur de filtre (25).
PCT/JP2016/077318 2015-10-02 2016-09-15 Ventilateur de fumée de type à circulation WO2017057030A1 (fr)

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JP2017527947A JPWO2017057030A1 (ja) 2015-10-02 2016-09-15 循環排煙装置

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JP2015197008 2015-10-02
JP2015-197008 2015-10-02

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WO2017057030A1 true WO2017057030A1 (fr) 2017-04-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111526831A (zh) * 2017-12-28 2020-08-11 爱惜康有限责任公司 外科排抽感测和显示
WO2020237175A1 (fr) * 2019-05-23 2020-11-26 Northgate Technologies Inc. Système et procédé d'élimination de fumée dans un système de recirculation des gaz
WO2023161193A3 (fr) * 2022-02-22 2023-11-30 Karl Storz Se & Co. Kg Dispositif d'imagerie médicale, système médical, procédé permettant de faire fonctionner un dispositif d'imagerie médicale et procédé d'imagerie médicale

Citations (5)

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