CN111265748B - Anesthetic gas conveying device - Google Patents
Anesthetic gas conveying device Download PDFInfo
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- CN111265748B CN111265748B CN202010112417.2A CN202010112417A CN111265748B CN 111265748 B CN111265748 B CN 111265748B CN 202010112417 A CN202010112417 A CN 202010112417A CN 111265748 B CN111265748 B CN 111265748B
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- gas
- pressure equalizing
- equalizing tank
- oxygen
- anesthesia
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- 239000003994 anesthetic gas Substances 0.000 title claims abstract description 47
- 239000007789 gas Substances 0.000 claims abstract description 204
- 239000001301 oxygen Substances 0.000 claims abstract description 103
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 103
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 102
- 206010002091 Anaesthesia Diseases 0.000 claims abstract description 76
- 230000037005 anaesthesia Effects 0.000 claims abstract description 75
- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 34
- 230000003444 anaesthetic effect Effects 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 24
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 229910001882 dioxygen Inorganic materials 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 230000035565 breathing frequency Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000003983 inhalation anesthetic agent Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- PIWKPBJCKXDKJR-UHFFFAOYSA-N Isoflurane Chemical compound FC(F)OC(Cl)C(F)(F)F PIWKPBJCKXDKJR-UHFFFAOYSA-N 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000008499 blood brain barrier function Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000001218 blood-brain barrier Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 238000010205 computational analysis Methods 0.000 description 1
- 239000003193 general anesthetic agent Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229960002725 isoflurane Drugs 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 230000036391 respiratory frequency Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/01—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes specially adapted for anaesthetising
-
- 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
-
- 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/104—Preparation of respiratory gases or vapours specially adapted for anaesthetics
-
- 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
-
- 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
-
- 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
- A61M16/201—Controlled valves
-
- 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
- A61M2016/102—Measuring a parameter of the content of the delivered gas
-
- 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
- A61M2230/00—Measuring parameters of the user
- A61M2230/40—Respiratory characteristics
-
- 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
- A61M2230/00—Measuring parameters of the user
- A61M2230/50—Temperature
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- Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses an anesthetic gas delivery device, which mainly comprises a device main body, an oxygen pressure equalizing tank, an anesthetic pressure equalizing tank, a controller and a breathing mask; the device main part is cylindrically, and upper portion is equipped with cylindrical recess, from the top down is equipped with mixing chamber and heating chamber in proper order in the device main part of cylindrical recess below, oxygen pressure-equalizing jar and anesthesia pressure-equalizing jar equidistant crisscross paste and lean on cylindrical recess circumference wall department at the device main part, the cylindrical recess upper end of device main part is equipped with the fixed plate, the left and right ends of top surface is equipped with oxygen connecting valve and anesthesia gas connecting valve respectively on the fixed plate, the fixed plate below is equipped with two gas distributors, oxygen connecting valve and anesthesia gas connecting valve are respectively through pipeline and two upper and lower gas distributor's connector intercommunication. In a word, the device has better mixed delivery effect, can adjust the concentration and the temperature of the anesthetic gas according to the breathing temperature and the breathing frequency of the patient, and is intelligent and accurate in adjustment.
Description
Technical Field
The invention relates to the technical field of medical instruments in anesthesia departments, in particular to an anesthetic gas conveying device.
Background
The inhalation anesthetic drug enters a human body from a respiratory tract in a volatile gas form to form an anesthetic effect, the drug comprises ether, isoflurane, nitrous oxide and the like, enters blood through alveolar artery, penetrates through a blood brain barrier along with blood circulation, finally reaches the brain, enters a central nervous system, and can block the function of nerve transmission to play the anesthetic effect.
General anesthetic gas inhales and all needs to use anesthetic gas delivery mechanism to carry out anesthetic gas inhalation to the patient, but current anesthetic gas delivery mechanism still has certain problem on anesthetic gas mixes conveying efficiency, for example, it is difficult automatically regulated to mix the equilibrium of atmospheric pressure in the use, and then influence the mixing efficiency of anesthetic gas and oxygen, influence the concentration and the dose that the patient inhales anesthetic gas, the mode that current device does not generally have gaseous heating or control temperature is more traditional simultaneously, the heating is slow, the response is poor, the result of use is relatively poor etc..
Therefore, a novel anesthetic gas delivery device is needed to solve the problems, so that the use experience of anesthesia of a patient using anesthetic gas is improved, and the anesthetic gas delivery device is more humanized and intelligent.
Disclosure of Invention
In order to solve the technical problem, the invention provides an anesthetic gas delivery device.
The technical scheme of the invention is that the anesthetic gas delivery device mainly comprises a device main body, an oxygen pressure equalizing tank, an anesthetic pressure equalizing tank, a controller and a breathing mask;
the device main body is cylindrical, a cylindrical groove is formed in the center of the upper portion of the device main body, and a mixing chamber and a heating chamber are sequentially arranged in the device main body below the cylindrical groove from top to bottom;
the circumferential wall of the mixing chamber is provided with an annular oxygen outlet ring, the oxygen outlet ring is respectively connected with an air outlet interface a of the oxygen pressure equalizing tank through 3 gas ring connecting pipes, the bottom surface of a cylindrical groove of the device main body above the mixing chamber is provided with 3 connecting pipes, the connecting pipes correspond to the angular positions of the anesthesia pressure equalizing tank one by one and are connected with an air outlet interface b of the anesthesia pressure equalizing tank, the top surface of the mixing chamber right below each connecting pipe is provided with a rotating motor, the lower end of the rotating motor is connected with an anesthesia rotating drum, the anesthesia rotating drum is communicated with the connecting pipes, the center of the bottom surface in the mixing chamber is provided with a mixed gas outlet, the mixed gas outlet is communicated with the heating chamber, the center of the bottom surface in the heating chamber is provided with a gas outlet communicated with the outside, a temperature sensor and a gas concentration sensor are respectively arranged above the gas outlet and the mixed gas outlet, and the temperature sensor, The gas concentration sensor is respectively fixed with the heating chamber and the bottom surface of the mixing chamber through a bracket b and a bracket a;
the oxygen pressure equalizing tank and the anesthesia pressure equalizing tank are respectively provided with 3 oxygen pressure equalizing tanks and are alternatively attached to the circumferential wall of the cylindrical groove of the device main body at equal intervals, the oxygen pressure equalizing tanks and the anesthesia pressure equalizing tanks are fixed on the bottom surface of the cylindrical groove, the upper end of the cylindrical groove of the device main body is provided with a fixing plate, the fixing plate is used for limiting and fixing the upper ends of the oxygen pressure equalizing tank and the anesthesia pressure equalizing tank, the fixing plate is fixed with the circumferential wall of the cylindrical groove, the left end and the right end of the upper top surface of the fixing plate are respectively provided with an oxygen connecting valve and an anesthesia gas connecting valve, two gas distributing pipes are arranged below the fixing plate from top to bottom, the centers of the upper top surfaces of the two gas distribution pipes are respectively provided with a connecting port, the oxygen connecting valve is communicated with the connecting port of the upper gas distribution pipe through a pipeline, the anesthesia gas connecting valve is communicated with a connecting port of a gas distributing pipe on the lower side through a pipeline, and the upper and lower gas distributing pipes are respectively connected and fixed with the oxygen pressure equalizing tank and the anesthesia pressure equalizing tank through a gas inlet interface a and a gas inlet interface b;
the air outlet is connected with the breathing mask through a mask connecting pipe, and a breathing temperature sensor and a breathing humidity sensor are arranged in the breathing mask;
the controller is located device main part right flank, is equipped with the block terminal on the device main part right flank of controller below, controller and block terminal respectively with oxygen connecting valve, anesthesia gas connecting valve, gas concentration sensor, temperature sensor, breathing temperature sensor and breathing humidity transducer are connected, the block terminal is connected with the rotation motor. The controller is a commercial Siemens PLC programmable controller 6ES7277-0AA22-0XA 0.
Furthermore, a gas bin a is arranged in the oxygen pressure equalizing tank, the gas bin a and the upper part and the inner lower part in the oxygen pressure equalizing tank respectively form an upper gas chamber a and a lower gas chamber a, the upper top surface and the lower bottom surface in the gas bin a and the oxygen pressure equalizing tank are connected through a spring a, the upper end of the right side of the gas bin a is provided with a gas bin inlet a, the lower end of the left side of the gas bin a is provided with a gas bin outlet a, the center of the bottom surface of the gas bin a is provided with a pressure equalizing port a, the positions of the oxygen pressure equalizing tank corresponding to the gas bin inlet a and the gas bin outlet a are respectively provided with an air inlet interface a and an air outlet interface a, and the oxygen pressure equalizing tanks at the upper gas chamber a and the lower gas chamber a are respectively provided with an upper gas chamber interface a and a lower gas chamber interface a; the anesthesia pressure equalizing tank is internally provided with a gas bin b, the gas bin b and the upper part and the lower part in the anesthesia pressure equalizing tank respectively form an upper gas chamber b and a lower gas chamber b, the upper top surface and the lower bottom surface in the anesthesia pressure equalizing tank are connected through a spring b, the upper end of the left side of the gas bin b is provided with a gas bin inlet b, the lower end of the left side of the gas bin b is provided with a gas bin outlet b, the center of the bottom surface of the gas bin b is provided with a pressure equalizing port b, the positions of the anesthesia pressure equalizing tank corresponding to the gas bin inlet b and the gas bin outlet b are respectively provided with a gas inlet interface b and a gas outlet interface b, and the anesthesia pressure equalizing tanks at the upper gas chamber b and the lower gas chamber b are respectively provided with an upper gas chamber interface b and a lower gas chamber interface b; the upper air chamber interface a of the adjacent oxygen pressure equalizing tank and the lower air chamber interface b of the anesthesia pressure equalizing tank are connected through a tank body connecting pipe, and the lower air chamber interface a of the adjacent oxygen pressure equalizing tank and the upper air chamber interface b of the anesthesia pressure equalizing tank are connected through a tank body connecting pipe. Through the design of last air chamber and lower air chamber and the cooperation jar body is taken over and is made two kinds of pressure-sharing jar communicate each other, utilizes the pressure of two kinds of pressure-sharing jar of pressure and the effect automatically regulated of spring, makes the gas storehouse up-and-down motion, produces the dislocation through the gas storehouse import of gas storehouse and advances between the interface and carry out the regulation of pressure, simple structure is effective, and is with low costs, and economic nature is good. The pressure of the oxygen pressure equalizing tank and the pressure of the anesthesia pressure equalizing tank are kept the same through mutual communication, and then two gases are mixed more efficiently and uniformly in the mixing chamber.
Furthermore, the middle parts of the oxygen pressure equalizing tank and the anesthesia pressure equalizing tank are respectively provided with a sealing ring a and a sealing ring b, and the positions of the gas bin a and the gas bin b corresponding to the sealing ring a and the sealing ring b are respectively provided with a sealing strip a and a sealing strip b. Can improve the sealing performance of the oxygen pressure equalizing tank and the anesthesia pressure equalizing tank, so that the device has better pressure equalizing effect and is more stable.
Furthermore, the gas distribution pipe is internally provided with three clapboards along the radial direction thereof and is used for equally dividing the gas distribution pipe into three gas flow passages. The gas distributing pipe is divided into three gas flow passages by the partition board, so that the gas can uniformly flow into the three oxygen pressure equalizing tanks or the anesthesia pressure equalizing tank.
Furthermore, the anesthesia rotary drum is uniformly provided with air holes, the inner side surface of the oxygen outlet ring is uniformly provided with inclined holes, and the inclined holes are all in the clockwise direction or the anticlockwise direction. The design of inclined hole can make the oxygen that lets in the mixing chamber produce clockwise or anticlockwise flow, mixes in the rotation of cooperation anesthesia rotary drum, mixes more evenly high-efficient.
Further, the device main part leading flank is equipped with the display screen, the display screen respectively with controller and block terminal are connected. The display screen is arranged, so that information such as concentration, temperature and the like of anesthetic gas can be more intuitively known, and specific anesthetic dosage can be more effectively adjusted.
Furthermore, 3 heating plates are arranged in the heating chamber at equal intervals from top to bottom, two through holes are formed in the two ends of each heating plate, and the 3 heating plates are staggered and fixed on the inner wall of the heating chamber at 90 degrees. Misplace through 3 hot plates two by two, through the stroke grow of through-hole for the heating effect is fast high-efficient more, and then makes the heating response of heating chamber faster.
The working method of the invention is as follows:
an oxygen tank and an anesthetic gas tank are respectively inserted into an oxygen connecting valve and an anesthetic gas connecting valve, the working principle of the oxygen pressure equalizing tank is described by taking the oxygen pressure equalizing tank as an example, gas enters a gas bin of the oxygen pressure equalizing tank through a gas distribution pipe, after the gas enters the gas bin a, most of the gas enters a gas annular connecting pipe from an outlet a and a gas outlet interface a of the gas bin, then enters an oxygen outlet ring, and a small part of the gas enters a lower gas chamber a from a pressure equalizing port a, because the lower gas chamber a of the adjacent oxygen pressure equalizing tank is communicated with an upper gas chamber b of the anesthetic pressure equalizing tank, the gas pressure balance is formed between the lower gas chamber a and the upper gas chamber b, when the oxygen injection amount is small, the gas entering the gas bin a is reduced, the pressure in the lower gas chamber a is reduced, and then the gas pressure in the upper gas chamber b of the adjacent anesthetic pressure equalizing tank is reduced, so that the gas chamber b moves upwards, the gas inlet b and the gas inlet interface b move in a staggered manner, the sizes of the gas chambers are reduced, and the purposes of mutual balance are achieved, the air pressure in each tank is the same, and the anesthesia pressure equalizing tank and the oxygen pressure equalizing tank have the same principle in the same way;
when oxygen is discharged through the clockwise inclined holes of the oxygen discharge ring, the oxygen flows clockwise, meanwhile, anesthetic gas is uniformly discharged through the rotation of the rotating motor and the rotation of the anesthetic rotary drum, so that the anesthetic gas and the oxygen are rapidly and uniformly mixed in the mixing chamber, then flow into the heating chamber through the mixed gas outlet, enter the heating chamber and then are rapidly heated through the three heating plates in sequence;
during this period gas concentration sensor and temperature sensor monitor anesthetic gas concentration and temperature in to the mist to adjust through the controller, the patient carries out anesthetic gas through respirator and inhales, carries out patient breathing temperature and respiratory frequency's monitoring through breathing temperature sensor and breathing humidity transducer, and carries out computational analysis through the controller, and then carries out the dynamic adjustment of concentration and temperature.
The invention has the beneficial effects that:
(1) according to the invention, through the design of the three groups of oxygen pressure equalizing tanks and the anesthesia pressure equalizing tank, the mixed gas can meet higher mixing requirements, and the mixed delivery effect is better and the fault tolerance rate is higher due to the multi-group design.
(2) According to the invention, through the design of the oxygen pressure equalizing tank and the anesthesia pressure equalizing tank, the two pressure equalizing tanks are communicated with each other through the design of the upper air chamber and the lower air chamber and the matching of the tank body connecting pipes, the pressure of the two pressure equalizing tanks is automatically adjusted by utilizing the pressure and the action of the spring, the air bin moves up and down, and the pressure is adjusted through the dislocation between the air bin inlet and the air inlet interface of the air bin, so that the structure is simple and effective, the cost is low, and the economical efficiency is good.
(3) The mixing chamber designed by the invention utilizes the self-flowing of oxygen and the rotation mixing of anesthetic gas, and the mixing is fast and efficient; the heating chamber designed by the invention can improve the heating contact area with the mixed gas and prolong the gas flow path through the heating plates arranged in a multi-layer staggered manner, so that the heating efficiency is improved, and the conveying response efficiency of the device is improved by matching the heating plate and the heating plate.
(4) The design of the breathing temperature sensor, the breathing humidity sensor, the temperature sensor, the gas concentration sensor, the controller, the oxygen connecting valve and the anesthetic gas connecting valve can adjust the concentration and the temperature of anesthetic gas according to the breathing temperature and frequency of a patient, the adjustment is intelligent and accurate, and the anesthesia is more humanized.
Drawings
Fig. 1 is an appearance view of the overall structure of the present invention.
Fig. 2 is a top view of the overall structure of the present invention.
Fig. 3 is a schematic view of the overall internal structure of the present invention.
Fig. 4 is a top view at a-a of fig. 3 of the present invention.
Fig. 5 is a top view at B-B of fig. 3 of the present invention.
Fig. 6 is a top view at C-C of fig. 3 of the present invention.
Fig. 7 is a connection relation diagram of the anesthesia pressure equalizing tank and the oxygen pressure equalizing tank.
Fig. 8 is a connection diagram of the gas concentration sensor of the present invention.
Fig. 9 is a schematic view of the heating plate structure of the present invention.
Wherein, 1-the device main body, 11-the fixed plate, 12-the oxygen connecting valve, 13-the anesthetic gas connecting valve, 14-the air outlet, 15-the display screen, 16-the jar body connecting pipe, 17-the face mask connecting pipe, 2-the oxygen pressure equalizing jar, 21-the upper air chamber a, 22-the lower air chamber a, 23-the air chamber a, 231-the air chamber inlet a, 232-the air chamber outlet a, 233-the pressure equalizing mouth a, 234-the sealing strip a, 24-the spring a, 25-the air outlet interface a, 26-the air inlet interface a, 27-the sealing ring a, 28-the upper air chamber interface a, 29-the lower air chamber interface a, 3-the anesthetic pressure equalizing jar, 31-the upper air chamber b, 32-the lower air chamber b, 33-the air chamber b, 331-the air chamber inlet b, 332-the air chamber outlet b, 31-the anesthetic gas chamber outlet b, 333-pressure equalizing port b, 334-sealing band b, 34-spring b, 35-air outlet port b, 36-air inlet port b, 37-sealing ring b, 38-upper air chamber port b, 39-lower air chamber port b, 4-air distribution pipe, 41-connecting port, 42-clapboard, 5-mixing chamber, 51-mixed gas outlet, 52-gas concentration sensor, 53-bracket a, 6-oxygen outlet ring, 61-gas connecting pipe, 7-anesthesia rotary drum, 71-connecting pipe, 72-rotating motor, 8-heating chamber, 81-heating plate, 811-through hole, 82-temperature sensor, 83-bracket b, 9-controller, 91-distribution box, 10-breathing mask, 101-breathing temperature sensor, 102-respiratory humidity sensor.
Detailed Description
As shown in fig. 1, an anesthetic gas delivery device mainly comprises a device body 1, an oxygen pressure equalizing tank 2, an anesthetic pressure equalizing tank 3, a controller 9 and a breathing mask 10;
as shown in fig. 3, the device body 1 is cylindrical, and a cylindrical groove is formed in the center of the upper part of the device body 1, and a mixing chamber 5 and a heating chamber 8 are sequentially formed in the device body 1 below the cylindrical groove from top to bottom;
as shown in fig. 3, the circumferential wall of the mixing chamber 5 is provided with an annular oxygen outlet ring 6, the oxygen outlet ring 6 is respectively connected with an air outlet port a25 of the oxygen pressure equalizing tank 2 through 3 air connecting pipes 61, the bottom surface of the cylindrical groove of the device body 1 above the mixing chamber 5 is provided with 3 connecting pipes 71, the connecting pipes 71 correspond to the anesthesia pressure equalizing tank 3 in angular positions one by one and are connected with an air outlet port b35 of the anesthesia pressure equalizing tank 3, the upper top surface of the mixing chamber 5 right below each connecting pipe 71 is provided with a rotating motor 72, the lower end of the rotating motor 72 is connected with an anesthesia rotary drum 7, the anesthesia rotary drum 7 is communicated with the connecting pipes 71, the center of the inner bottom surface of the mixing chamber 5 is provided with a mixed gas outlet 51, the mixed gas outlet 51 is communicated with the heating chamber 8, the center of the inner bottom surface of the heating chamber 8 is provided with an air outlet 14 communicated with the outside, a temperature sensor 82 and a gas concentration sensor 52 are respectively arranged above the air outlet 14 and the mixed gas outlet 51, the temperature sensor 82 and the gas concentration sensor 52 are fixed to the bottom surfaces of the heating chamber 8 and the mixing chamber 5 via a bracket b83 and a bracket a53, respectively. The anesthesia rotary drum 7 is uniformly provided with air holes, the inner side surface of the oxygen outlet ring 6 is uniformly provided with inclined holes, and the inclined holes are all in the clockwise direction or the anticlockwise direction. The design of inclined hole can make the oxygen that lets in the mixing chamber produce clockwise or anticlockwise flow, mixes in cooperation anesthesia rotation of rotary drum 7, mixes more evenly high-efficient.
As shown in fig. 3, 3 oxygen pressure equalizing tanks 2 and 3 are respectively provided, and are attached to the circumferential wall of the cylindrical groove of the device body 1 in an equidistant and staggered manner, the oxygen pressure equalizing tanks 2 and 3 are fixed on the bottom surface of the cylindrical groove, a gas bin a23 is provided in the oxygen pressure equalizing tank 2, the gas bin a23 and the upper and lower parts in the oxygen pressure equalizing tank 2 respectively form an upper gas chamber a21 and a lower gas chamber a22, the gas bin a23 and the upper and lower top surfaces in the oxygen pressure equalizing tank 2 are connected through a spring a24, the upper end of the right side of the gas bin a23 is provided with a gas bin inlet a231, the lower end of the left side of the gas bin a23 is provided with a gas bin outlet a232, the center of the bottom surface of the gas bin a23 is provided with a pressure equalizing port a233, the oxygen pressure equalizing tank 2 is respectively provided with an air inlet a26 at the position corresponding to the gas bin inlet a231 and the gas bin outlet a232, the oxygen pressure equalizing tank 2 at the air outlet port a25, the upper air chamber a21 and the lower air chamber a22 is respectively provided with an upper air chamber port a28 and a lower air chamber port a 29; an air bin b33 is arranged in the anesthesia pressure equalizing tank 3, an upper air chamber b31 and a lower air chamber b32 are respectively formed by the air bin b33 and the upper portion and the lower portion in the anesthesia pressure equalizing tank 3, the air bin b33 is connected with the upper top surface and the lower bottom surface in the anesthesia pressure equalizing tank 3 through springs b34, an air bin inlet b331 is arranged at the upper end of the left side of the air bin b33, an air bin outlet b332 is arranged at the lower end of the left side of the air bin b33, a pressure equalizing port b333 is arranged in the center of the bottom surface of the air bin b33, an air inlet interface b36 and an air outlet interface b35 are respectively arranged at positions of the anesthesia pressure equalizing tank 3 corresponding to the air bin inlet b331 and the air bin outlet b332, and an upper air chamber interface b38 and a lower air chamber interface b39 are respectively arranged on the anesthesia pressure equalizing tank 3 at the positions of the upper air chamber b31 and the lower air chamber b 32; as shown in fig. 7, the upper air chamber port a28 of the adjacent oxygen pressure equalizing tank 2 and the lower air chamber port b39 of the anesthesia pressure equalizing tank 3 are connected by a tank connecting pipe 16, and the lower air chamber port a29 of the adjacent oxygen pressure equalizing tank 2 and the upper air chamber port b38 of the anesthesia pressure equalizing tank 3 are connected by a tank connecting pipe 16. The two pressure equalizing tanks are communicated with each other by the design of the upper air chamber and the lower air chamber and the matching of the tank body connecting pipe 16, the pressure of the two pressure equalizing tanks is automatically adjusted by utilizing the pressure and the action of the spring, the air bin moves up and down, and the pressure is adjusted by generating dislocation between the air bin inlet of the air bin and the air inlet interface. The pressure of the oxygen pressure equalizing tank 2 and the pressure of the anesthesia pressure equalizing tank 3 are kept the same through mutual communication, and then two gases enter the mixing chamber to be mixed more efficiently and uniformly. The middle parts of the oxygen pressure equalizing tank 2 and the anesthesia pressure equalizing tank 3 are respectively provided with a sealing ring a27 and a sealing ring b37, and the positions of the gas bin a23 and the gas bin b33, which correspond to the sealing rings a27 and the sealing rings b37, are respectively provided with a sealing belt a234 and a sealing belt b 334. Can improve the sealing performance of the oxygen pressure equalizing tank 2 and the anesthesia pressure equalizing tank 3, so that the pressure equalizing effect of the device is better and more stable.
As shown in fig. 3 and 9, 3 heating plates 81 are arranged in the heating chamber 8 at equal intervals from top to bottom, two ends of each heating plate 81 are provided with a through hole 811, and the 3 heating plates are fixed on the inner wall of the heating chamber 8 in a 90-degree staggered manner. Misplace through 3 hot plates two by two, through-hole 811's stroke grow for the heating effect is fast high-efficient more, and then makes heating 8's heating response faster.
As shown in fig. 1 and 2, a fixing plate 11 is arranged at the upper end of a cylindrical groove of a device main body 1, the fixing plate 11 is used for limiting and fixing the upper ends of an oxygen pressure equalizing tank 2 and an anesthesia pressure equalizing tank 3, the fixing plate 11 is fixed with the circumferential wall of the cylindrical groove, the left end and the right end of the upper top surface of the fixing plate 11 are respectively provided with an oxygen connecting valve 12 and an anesthesia gas connecting valve 13, two gas distribution pipes 4 are arranged below the fixing plate 11 from top to bottom, the centers of the upper top surfaces of the two gas distribution pipes 4 are respectively provided with a connecting port 41, the oxygen connecting valve 12 is communicated with the connecting port 41 of the gas distribution pipe 4 at the upper side through a pipeline, the anesthesia gas connecting valve 13 is communicated with the connecting port 41 of the gas distribution pipe 4 at the lower side through a pipeline, and the upper and lower gas distribution pipes 4 are respectively connected and fixed with the oxygen pressure equalizing tank 2 and the anesthesia pressure equalizing tank 3 through an air inlet port a26 and an air inlet port b 36; three partition plates 42 are provided in the gas-distributing pipe 4 along the radial direction thereof for equally dividing the inside of the gas-distributing pipe 4 into three gas flow paths. The air distributing pipe 4 is divided into three air flow passages by the partition boards 42, so that the air can uniformly flow into the three oxygen equalizing tanks 2 or the anesthesia equalizing tanks 3.
As shown in fig. 1, the air outlet 14 is connected with the breathing mask 10 through a mask connecting pipe 17, and a breathing temperature sensor 101 and a breathing humidity sensor 102 are arranged in the breathing mask 10;
as shown in fig. 1, a display screen 15 is provided on the front side surface of the apparatus main body 1, and the display screen 15 is connected to the controller 9 and the distribution box 91, respectively. The display screen 15 is arranged, so that information such as concentration, temperature and the like of anesthetic gas can be more intuitively known, and specific anesthetic dosage can be more effectively adjusted. The controller 9 is located on the right side surface of the apparatus main body 1, a distribution box 91 is arranged on the right side surface of the apparatus main body 1 below the controller 9, the controller 9 and the distribution box 91 are respectively connected with the oxygen connecting valve 12, the anesthetic gas connecting valve 13, the gas concentration sensor 52, the temperature sensor 82, the respiration temperature sensor 101 and the respiration humidity sensor 102, and the distribution box 91 is connected with the rotating motor 72. The controller is a commercial Siemens PLC programmable controller 6ES7277-0AA22-0XA 0.
When in use, an oxygen tank and an anesthetic gas tank are respectively inserted into the oxygen connecting valve 12 and the anesthetic gas connecting valve 13, taking the oxygen equalizing tank 2 as an example to illustrate the working principle, gas enters the gas bin a23 of the oxygen equalizing tank 2 through the gas distributing pipe 4, after entering the gas bin a23, most of the gas enters the gas connecting pipe 61 from the gas bin outlet a232 and the gas outlet port a25 and then enters the oxygen outlet ring 6, and a small part of the gas enters the lower gas chamber a22 from the equalizing port a233, because the lower gas chamber a22 of the adjacent oxygen equalizing tank 2 is communicated with the upper gas chamber b31 of the anesthetic equalizing tank 3, the gas pressure balance is formed between the gas chambers, when the oxygen injection amount is small, the gas amount entering the gas bin a23 is reduced, the pressure in the lower gas chamber a22 is reduced, the gas pressure in the upper gas chamber b31 of the adjacent anesthetic equalizing tank 3 is reduced, the gas chamber b33 moves upwards, and the gas inlet b 36331 and the gas inlet port b36 move in a staggered manner, the sizes of the air ports are reduced, the purpose of mutual balance is achieved, the air pressure in each tank is the same, and the anesthesia pressure equalizing tank 3 and the oxygen pressure equalizing tank 2 are the same in principle in the same way;
when oxygen is discharged through the clockwise inclined holes of the oxygen gas outlet ring 6, the oxygen gas flows clockwise, meanwhile, anesthetic gas is uniformly discharged through the rotation of the rotating motor 72 and the rotation of the anesthetic rotary drum 7, so that the anesthetic gas and the oxygen gas are rapidly and uniformly mixed in the mixing chamber 5, then flow into the heating chamber 8 through a mixed gas outlet, enter the heating chamber 8 and then are rapidly heated through the three heating plates 81 in sequence;
during the period, the gas concentration sensor 52 and the temperature sensor 82 monitor the concentration and the temperature of the anesthetic gas in the mixed gas, and adjust through the controller 9, the patient inhales the anesthetic gas through the breathing mask 10, monitors the breathing temperature and the breathing frequency of the patient through the breathing temperature sensor 101 and the breathing humidity sensor 102, and calculates and analyzes through the controller 9, so as to dynamically adjust the concentration and the temperature.
Experimental comparative example
100 patients (male-female ratio 1: 1) were selected from a hospital in this city and were equally divided into 2 groups, the first group was a comparative example, inhalation anesthesia was performed using an inhalation anesthesia apparatus of the prior art, the second group was an experimental example, inhalation anesthesia was performed using an apparatus of the present invention, and the results were as follows:
comparative example: after the patient wears the respirator, the MAP is increased and the heart rate is changed remarkably, and the time from the patient inhaling anesthetic gas to the disappearance of consciousness is 6-7 minutes;
experimental example: after a patient wears the breathing mask, the MAP value is not obviously increased and the heart rate is not obviously changed, and the time from the patient inhaling anesthetic gas to the disappearance of consciousness is 3-4 minutes;
meanwhile, 100 patients are respectively subjected to inhalation anesthesia by using the comparative example device and the experimental example device, the inhalation feeling is investigated, and the satisfaction degree of the patients on the use of the experimental example device is 97%; patient satisfaction with the comparative device was 78%;
and (4) conclusion: the device has the advantages of better conveying effect, stable output, accurate adjustment of the concentration and the temperature of the anesthetic gas, improvement of the inhalation anesthetic effect and improvement of the use experience of patients.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. An anesthetic gas delivery device is characterized by mainly comprising a device main body (1), an oxygen pressure equalizing tank (2), an anesthetic pressure equalizing tank (3), a controller (9) and a breathing mask (10);
the device main body (1) is cylindrical, a cylindrical groove is formed in the center of the upper portion of the device main body, and a mixing chamber (5) and a heating chamber (8) are sequentially arranged in the device main body (1) below the cylindrical groove from top to bottom;
the oxygen pressure equalizing tank (2) and the anesthesia pressure equalizing tank (3) are respectively provided with 3 pressure equalizing tanks, and are alternatively attached to the circumferential wall of the cylindrical groove of the device main body (1) at equal intervals, the oxygen pressure equalizing tank (2) and the anesthesia pressure equalizing tank (3) are fixed on the bottom surface of the cylindrical groove,
the device is characterized in that an annular oxygen outlet ring (6) is arranged on the circumferential wall of the mixing chamber (5), the oxygen outlet ring (6) is respectively connected with corresponding air outlet ports a (25) of the oxygen pressure equalizing tank (2) through 3 air ring connecting pipes (61), 3 connecting pipes (71) are arranged on the cylindrical groove bottom surface of the device main body (1) above the mixing chamber (5), each connecting pipe (71) corresponds to the corresponding angle position of the anesthesia pressure equalizing tank (3) one by one and is connected with an air outlet port b (35) of the anesthesia pressure equalizing tank (3), a rotating motor (72) is arranged on the upper top surface of the mixing chamber (5) under each connecting pipe (71), the lower end of each rotating motor (72) is connected with an anesthesia rotating drum (7), the anesthesia rotating drum (7) is communicated with the connecting pipes (71), a mixed gas outlet (51) is arranged in the center of the inner bottom surface of the mixing chamber (5), the mixed gas outlet (51) is communicated with the heating chamber (8), a gas outlet (14) is formed in the center of the inner bottom surface of the heating chamber (8) and communicated with the outside, a temperature sensor (82) and a gas concentration sensor (52) are respectively arranged above the gas outlet (14) and the mixed gas outlet (51), and the temperature sensor (82) and the gas concentration sensor (52) are respectively fixed with the bottom surfaces of the heating chamber (8) and the mixing chamber (5) through a support b (83) and a support a (53);
the oxygen pressure equalizing tank (2) is internally provided with a gas bin a (23), the gas bin a (23) and the inner upper part and the inner lower part of the oxygen pressure equalizing tank (2) respectively form an upper gas chamber a (21) and a lower gas chamber a (22), the gas bin a (23) and the inner upper top surface and the lower bottom surface of the oxygen pressure equalizing tank (2) are connected through a spring a (24), the upper end of the right side of the gas bin a (23) is provided with a gas bin inlet a (231), the lower end of the left side of the gas bin a (23) is provided with a gas bin outlet a (232), the center of the bottom surface of the gas bin a (23) is provided with a pressure equalizing port a (233), and the oxygen pressure equalizing tank (2) is respectively provided with an air inlet port a (26) and an air outlet port a (25) at the positions corresponding to the gas bin inlet a (231) and the gas bin outlet a (232), the oxygen pressure equalizing tank (2) at the upper air chamber a (21) and the lower air chamber a (22) is respectively provided with an upper air chamber interface a (28) and a lower air chamber interface a (29);
the anesthesia pressure equalizing tank (3) is internally provided with a gas bin b (33), the gas bin b (33) and the upper and lower parts in the anesthesia pressure equalizing tank (3) respectively form an upper gas chamber b (31) and a lower gas chamber b (32), the upper top surface and the lower bottom surface in the gas bin b (33) and the anesthesia pressure equalizing tank (3) are connected through a spring b (34), the upper end of the left side of the gas bin b (33) is provided with a gas bin inlet b (331), the lower end of the left side of the gas bin b (33) is provided with a gas bin outlet b (332), the center of the bottom surface of the gas bin b (33) is provided with a pressure equalizing port b (333), and the positions of the anesthesia pressure equalizing tank (3) corresponding to the gas bin inlet b (331) and the gas bin outlet b (332) are respectively provided with an air inlet interface b (36) and an air outlet interface b (35), the anesthesia pressure equalizing tank (3) at the upper air chamber b (31) and the lower air chamber b (32) is respectively provided with an upper air chamber interface b (38) and a lower air chamber interface b (39); the upper air chamber interface a (28) of the adjacent oxygen pressure equalizing tank (2) is connected with the lower air chamber interface b (39) of the anesthesia pressure equalizing tank (3) through a tank body connecting pipe (16), and the lower air chamber interface a (29) of the adjacent oxygen pressure equalizing tank (2) is connected with the upper air chamber interface b (38) of the anesthesia pressure equalizing tank (3) through the tank body connecting pipe (16);
the device is characterized in that a fixing plate (11) is arranged at the upper end of a cylindrical groove of a device main body (1), the fixing plate (11) is used for limiting and fixing the upper ends of an oxygen pressure equalizing tank (2) and an anesthesia pressure equalizing tank (3), the fixing plate (11) is fixed with the circumferential wall of the cylindrical groove, the left end and the right end of the upper top surface of the fixing plate (11) are respectively provided with an oxygen connecting valve (12) and an anesthesia gas connecting valve (13), two gas distributing pipes (4) are arranged below the fixing plate (11) from top to bottom, the centers of the upper top surfaces of the two gas distributing pipes (4) are respectively provided with a connecting port (41), the oxygen connecting valve (12) is communicated with a connecting port (41) of the upper gas distributing pipe (4) through a pipeline, the anesthetic gas connecting valve (13) is communicated with a connecting port (41) of the lower gas distributing pipe (4) through a pipeline, and the upper gas distributing pipe (4) and the lower gas distributing pipe (4) are respectively connected and fixed with the oxygen pressure equalizing tank (2) and the anesthetic pressure equalizing tank (3) through a gas inlet interface a (26) and a gas inlet interface b (36);
the air outlet (14) is connected with the breathing mask (10) through a mask connecting pipe (17), and a breathing temperature sensor (101) and a breathing humidity sensor (102) are arranged in the breathing mask (10);
the device is characterized in that the controller (9) is located on the right side face of the device main body (1), a distribution box (91) is arranged on the right side face of the device main body (1) below the controller (9), the controller (9) and the distribution box (91) are respectively connected with an oxygen connecting valve (12), an anesthetic gas connecting valve (13), a gas concentration sensor (52), a temperature sensor (82), a breathing temperature sensor (101) and a breathing humidity sensor (102), and the distribution box (91) is connected with a rotating motor (72).
2. The anesthetic gas delivery device according to claim 1, wherein the oxygen equalizing tank (2) and the anesthetic equalizing tank (3) are respectively provided with a sealing ring a (27) and a sealing ring b (37) at the middle portions thereof, and the gas chamber a (23) and the gas chamber b (33) are respectively provided with a sealing strip a (234) and a sealing strip b (334) at positions corresponding to the sealing ring a (27) and the sealing ring b (37).
3. An anesthetic gas supply device according to claim 1, characterized in that the gas-distributing tube (4) is provided with three partitions (42) along its radial direction for equally dividing the gas-distributing tube (4) into three gas flow paths.
4. The anesthetic gas delivery device according to claim 1, wherein the anesthetic rotating cylinder (7) is uniformly provided with gas holes, and the inner side surface of the oxygen gas outlet ring (6) is uniformly provided with inclined holes, and the inclined holes are in a clockwise direction or a counterclockwise direction.
5. An anesthetic gas delivery apparatus according to claim 1, wherein a display screen (15) is provided on a front side of the apparatus body (1), and the display screen (15) is connected to the controller (9) and the electric box (91), respectively.
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| CN202010112417.2A CN111265748B (en) | 2020-02-24 | 2020-02-24 | Anesthetic gas conveying device |
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