WO2019102653A1 - Dispositif d'alimentation en air - Google Patents

Dispositif d'alimentation en air Download PDF

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Publication number
WO2019102653A1
WO2019102653A1 PCT/JP2018/029097 JP2018029097W WO2019102653A1 WO 2019102653 A1 WO2019102653 A1 WO 2019102653A1 JP 2018029097 W JP2018029097 W JP 2018029097W WO 2019102653 A1 WO2019102653 A1 WO 2019102653A1
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WO
WIPO (PCT)
Prior art keywords
air supply
opening
temperature sensor
supply device
temperature
Prior art date
Application number
PCT/JP2018/029097
Other languages
English (en)
Japanese (ja)
Inventor
都敏 平賀
真也 鳥居
弘治 山岡
侑磨 糟谷
敬太 木村
上杉　武文
弘治 下林
Original Assignee
オリンパス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by オリンパス株式会社 filed Critical オリンパス株式会社
Publication of WO2019102653A1 publication Critical patent/WO2019102653A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes

Definitions

  • the present invention relates to an air supply apparatus for supplying an air supply gas such as carbon dioxide gas into a body cavity.
  • an endoscope system including an endoscope for imaging a subject inside a subject, an image processing apparatus for generating an observation image of the subject captured by the endoscope, etc.
  • an endoscope system including an endoscope for imaging a subject inside a subject, an image processing apparatus for generating an observation image of the subject captured by the endoscope, etc.
  • laparoscopic surgery is performed to perform a therapeutic treatment without opening for the purpose of reducing the invasiveness to a patient.
  • an insufflation apparatus that supplies insufflation gas such as carbon dioxide gas into the abdominal cavity is used to secure the field of view of the endoscope and the operation space of the treatment instrument.
  • This air supply device is configured to control the pressure reducing valve and the flow rate adjusting valve, adjust the air supply gas to a safe pressure and flow rate, and supply the gas into the abdominal cavity through the air supply tube (for example, Japan Japanese Patent Laid-Open Publication No. 11-178787).
  • the insufflation gas is supplied to the insufflation tube at the same temperature as the operating room temperature (e.g. 25 [deg.] C), which is about 10 [deg.] C lower than the body temperature (e.g. 37 [deg.] C). Therefore, if the insufflation gas of the same temperature as the temperature of the operating room is supplied into the body cavity through the insufflation tube, the patient under surgery may be burdened and may induce hypothermia.
  • a heater is stored in the air supply tube, and the air supply gas is heated to a constant temperature zone (for example, 35 to 39 ° C.) near the body temperature in the air supply tube and supplied to the body cavity.
  • a temperature sensor is disposed in the insufflation tube, and the insufflation apparatus determines the current value to be supplied to the heater using the measurement result of the temperature in the insufflation tube.
  • the temperature sensor needs to be disposed in the air feeding tube, the cost of the entire air feeding tube is increased.
  • the air supply tube can not be cleaned, so the air supply tube needs to be a disposable type. In this case, a new air supply tube is required for each procedure, and the increase in the cost of the air supply tube is directly linked to the increase in the cost of the procedure.
  • the temperature sensor In order to prevent the increase in the cost of the air supply tube and the cost of the procedure, it is conceivable to place the temperature sensor not on the inside of the air supply tube but on the surface (front side) of the air supply device. Then, the air supply device measures not the temperature of the air supply gas in the air supply tube but the environmental temperature (room temperature) where the air supply tube is placed, and determines the current value to be supplied to the heater using this measurement result Do. As described above, by incorporating the temperature sensor into the air supply device, the cost increase of the disposable type air supply tube can be suppressed, and the cost of the procedure can also be suppressed.
  • various disturbances may change the temperature in the vicinity of the air supply device.
  • the air supply device when the air supply device is disposed directly below the air conditioner, it is conceivable that cold air from cooling may be applied to the device to measure a temperature lower than the actual room temperature.
  • the air supply device erroneously measures the room temperature of 25 ° C. as 20 ° C., raises the current value supplied to the heater, and sends the air gas (eg 40 ° C.) heated (heated) more than necessary into the body cavity. Can inhale and cause burns to the patient.
  • the temperature sensor is disposed on the back side of the surface of the air feeding device and the panel constituting the surface of the air feeding device is close to the temperature sensor. Deploy. Then, it is conceivable that the panel in the vicinity of the temperature sensor is provided with an opening perpendicular to the panel so that the temperature sensor is in contact with the atmosphere through the opening.
  • the temperature sensor may fail.
  • the temperature sensor may not be in contact with the atmosphere, and the room temperature may not be measured correctly.
  • a panel portion disposed adjacent to a temperature sensor for measuring the temperature of the atmosphere disposed inside the housing, and a predetermined angle obliquely upward with respect to the panel portion And has a tapered shape that diverges from the upper side to the lower side and is provided around the opening and an opening provided in the vicinity of the temperature sensor of the panel portion. And a projection-shaped umbrella portion.
  • FIG. 1 is a view for explaining an example of the overall configuration of a surgical system including an air supply device according to an embodiment of the present invention.
  • the surgical system according to the present embodiment treats the affected area in the abdominal cavity of the patient 10 expanded by supplying carbon dioxide gas or the like under observation of the endoscope 7 by treating the electric knife 8 or the like. It is used for the procedure which is treated using the tool.
  • the abdominal wall of the patient 10 is pierced with a first trocar 9 a and a second trocar 9 b.
  • the first trocar 9a is a trocar that guides the endoscope 7 into the abdominal cavity.
  • an air supply tube 6 to be described later is connected to the first trocar 9a, and an air supply gas such as carbon dioxide gas supplied from the air supply device 1 is configured to be guided into the abdominal cavity.
  • the second trocar 9b is a trocar which guides a treatment tool such as an electric knife 8 for excising and treating tissue into the abdominal cavity.
  • the light source device 3 and the processor 4 are connected to the endoscope 7. Further, a monitor 5 is connected to the processor 4.
  • the light source device 3 guides the light emitted from the semiconductor light source by the light guide member, converts the color and light intensity distribution etc. by the light conversion member provided at the tip of the light guide member, and illuminates the endoscope 7 Supply the light.
  • the processor 4 supplies a power supply voltage to the endoscope 7, performs predetermined video signal processing on an image pickup signal picked up by the endoscope 7, and outputs a video signal to the monitor 5. Thereby, the endoscope image (surgical image) obtained by the endoscope 7 is displayed on the monitor 5.
  • An electric knife output device 2 is connected to the electric knife 8.
  • the electric knife output device 2 outputs a high frequency current that generates high frequency electric energy to the electric knife 8.
  • the high frequency current output from the electric knife output device 2 is intensively flowed to the affected area tissue to generate Joule heat. Perform tissue dissection and hemostasis and coagulation at the bleeding site.
  • a gas cylinder (not shown) filled with carbon dioxide gas (CO 2 gas) is connected to the gas supply device 1 for supplying gas. Further, one end of an air supply tube 6 is connected to the air supply device 1. The other end of the air supply tube 6 is connected to a first trocar 9 a punctured in the abdominal wall of the patient 10. That is, the air supply device 1 is configured to be able to supply an air supply gas such as carbon dioxide gas into the abdominal cavity of the patient 10 via the air supply tube 6 and the first trocar 9a.
  • CO 2 gas carbon dioxide gas
  • the air supply device 1, the electric scalpel output device 2, the light source device 3, the processor 4 and the monitor 5 described above are mounted on, for example, a movable trolley device.
  • the configuration of the surgical system is not limited to the configuration of FIG. 1 and may be, for example, a configuration having a circulation exhaust system.
  • the circulating smoke exhausting apparatus sucks carbon dioxide gas including smoke generated by use of the electric knife 8 from the abdominal cavity of the patient 10, removes smoke and mist from the sucked carbon dioxide gas, and then returns the carbon dioxide gas to the abdominal cavity Is configured as.
  • FIG. 2 is a perspective view showing an example of the appearance of the air supply device
  • FIG. 3 is a cross-sectional view showing an example of the detailed configuration of the opening 15a
  • FIG. 4 is an example of the structure of the air supply device. It is a block diagram shown.
  • a panel unit 11 and a display unit 12 are provided on the front surface of the air supply device 1.
  • the panel unit 11 is disposed adjacent to a temperature sensor 21 described later that measures the temperature of the atmosphere disposed inside the air supply device 1 (inside the housing).
  • the panel portion 11 is provided with a pinch valve 13, an air supply connector portion 14, and two openings 15a and 15b.
  • the two openings 15 a and 15 b are provided below the air supply connector portion 14.
  • the air supply apparatus 1 is provided with the two opening parts 15a and 15, and is not limited to this, You may be a structure provided with one opening part.
  • Protruding umbrellas 16a and 16b are provided around the openings 15a and 15b around the openings 15a and 15b in order to make it difficult for the liquids to be applied to the openings 15a and 15b and the temperature sensor 21 described later. It is done. Further, slits 17a and 17b are provided from the lower surface of the openings 15a and 16b toward the umbrellas 16a and 16b disposed around the periphery. The slits 17a and 17b are slits for guiding the liquid film to the outside when the liquid film is formed in the openings 15a and 15b.
  • the opening 15 a is provided obliquely with respect to the panel portion 11 at a predetermined angle. Furthermore, the opening 15a has a tapered shape that diverges from the upper side (the base end side where the temperature sensor 21 is provided) to the lower side (the tip side where the panel portion 11 is provided). Although FIG. 3 illustrates the opening 15a as an example, the opening 15b also has the same configuration.
  • a temperature sensor 21 is provided on the proximal end side of the opening 15a. That is, the temperature sensor 21 is configured to be in contact with the air via the opening 15a and to measure the room temperature. The measurement result measured by the temperature sensor 21 is output to a control unit 22 described later provided in the air supply device 1.
  • the air supply device 1 includes a control unit 22 in addition to the panel unit 11, the air supply connector unit 14, the openings 15 a and 15 b, the temperature sensor 21 and the like described above. ing.
  • An air supply tube connector 6 a is provided at the proximal end of the air supply tube 6.
  • the air supply tube connector 6 a is connected to the air supply connector portion 14 of the air supply device 1.
  • a heater 6 b for heating the air-supplying gas is disposed on the tip side inside the air-supplying tube 6.
  • the heater 6 b is connected to the cable 6 c inserted into the air supply tube 6.
  • the cable 6 c is configured to be connected to the control unit 22 when the air feeding tube 6 is connected to the air feeding device 1.
  • the temperature sensor 21 measures the room temperature through the opening 15 a and outputs the measurement result to the control unit 22.
  • the control unit 22 adjusts the heating amount of the heater 6b, that is, the current value to be supplied to the heater 6b, based on the measurement result (room temperature) measured by the temperature sensor 21.
  • the control unit 22 heats the air-supplying gas flowing in the air-supplying tube 6 by heating the heater 6 b in the air-supplying tube 6, and sends in the abdominal cavity of the patient 10 a temperature substantially the same as the temperature of the patient 10. It is configured to supply air gas.
  • FIG. 5 is a figure for demonstrating an effect
  • the medical device including the air supply device 1 needs to perform maintenance work such as cleaning.
  • the user who performs the maintenance work sprays the liquid such as the cleaning liquid to the air supply device 1 with a spray or the like.
  • the liquid such as the cleaning liquid comes from the obliquely upward direction (arrow 31) or the vertical direction (arrow 32) with respect to the opening 15a of the air supply device 1.
  • a protruding umbrella portion 16 a is provided around the opening 15 a of the panel portion 11.
  • the liquid can be prevented from being applied to the opening 15 a and the temperature sensor 21 by preventing the liquid coming from the obliquely upward direction of the umbrella portion 16 a.
  • the opening 15a is not provided perpendicularly to the panel 11, but the opening 15a is provided obliquely upward at a predetermined angle with respect to the panel 11.
  • the opening 15a is not provided perpendicularly to the panel 11, but the opening 15a is provided obliquely upward at a predetermined angle with respect to the panel 11.
  • the liquid film 33 may be generated in the opening 15a.
  • the temperature sensor 21 may not be in contact with the air, and thus, the room temperature may not be accurately measured.
  • the opening 15a has a tapered shape that is diverged from the upper side to the lower side.
  • the liquid film 33 is lowered to the lower side of the opening 15a as shown by the arrow 34 due to the influence of gravity.
  • the opening 15a is enlarged, so that the surface tension is weakened, the liquid film 33 can not maintain the film state, and the film is broken.
  • the liquid film 33 is further lowered below the opening 15a, so that the liquid film 33 contacts the slit 17a.
  • the liquid constituting the liquid film 33 is discharged to the slit 17a.
  • the surface tension of the liquid film 33 is weakened, the liquid film 33 can not maintain the film state, and the film is broken. That is, even when the liquid film 33 is formed in the opening 15a, the liquid film 33 is immediately removed, and the liquid is discharged in the direction indicated by the arrow 36. As a result, the temperature sensor 21 can always measure the correct room temperature through the opening 15a.
  • the air supply device 1 is provided with the projecting umbrella portion 16 a around the opening 15 a of the panel 11, and the opening 15 a has a predetermined angle obliquely upward with respect to the panel 11. Provided.
  • the projection-shaped umbrella 16a around the opening 15a, it is difficult for liquid to be applied to the opening 15a and the temperature sensor 21, and the opening 15a has a predetermined angle obliquely upward with respect to the panel 11 As a result, even when liquid is applied to the opening 15a, the liquid is not easily applied to the temperature sensor 21.
  • the opening 15a has a tapered shape that widens from the upper side to the lower side.
  • the liquid is not easily applied to the temperature sensor and the opening, and the liquid film can be rapidly removed even when the liquid film is formed on the opening.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Optics & Photonics (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un dispositif d'alimentation en air, comprenant : une partie panneau 11 disposée adjacente à un capteur de température 21 qui est disposé dans un boîtier et mesure la température de l'atmosphère ; une ouverture 15a qui est disposée à un angle prédéterminé de manière oblique au-dessus de la partie panneau 11, est effilée pour s'élargir progressivement du côté supérieur au côté inférieur, et est disposée dans la partie panneau 11 à proximité du capteur de température 21 ; et une partie tête 16a formée en tant que saillie autour de l'ouverture 15a.
PCT/JP2018/029097 2017-11-24 2018-08-02 Dispositif d'alimentation en air WO2019102653A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-225604 2017-11-24
JP2017225604 2017-11-24

Publications (1)

Publication Number Publication Date
WO2019102653A1 true WO2019102653A1 (fr) 2019-05-31

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Application Number Title Priority Date Filing Date
PCT/JP2018/029097 WO2019102653A1 (fr) 2017-11-24 2018-08-02 Dispositif d'alimentation en air

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WO (1) WO2019102653A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11178787A (ja) * 1997-12-18 1999-07-06 Olympus Optical Co Ltd 内視鏡システム
JP2005245772A (ja) * 2004-03-04 2005-09-15 Olympus Corp 気腹システム
JP2016185227A (ja) * 2015-03-27 2016-10-27 オリンパス株式会社 気腹装置、気腹装置の作動方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11178787A (ja) * 1997-12-18 1999-07-06 Olympus Optical Co Ltd 内視鏡システム
JP2005245772A (ja) * 2004-03-04 2005-09-15 Olympus Corp 気腹システム
JP2016185227A (ja) * 2015-03-27 2016-10-27 オリンパス株式会社 気腹装置、気腹装置の作動方法

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