CN114588446A - Multichannel oropharyngeal ventilation system for anesthesia - Google Patents

Multichannel oropharyngeal ventilation system for anesthesia Download PDF

Info

Publication number
CN114588446A
CN114588446A CN202210299450.XA CN202210299450A CN114588446A CN 114588446 A CN114588446 A CN 114588446A CN 202210299450 A CN202210299450 A CN 202210299450A CN 114588446 A CN114588446 A CN 114588446A
Authority
CN
China
Prior art keywords
patient
ventilation
channel
module
detection
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
CN202210299450.XA
Other languages
Chinese (zh)
Inventor
屈瀚
余晓菲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN202210299450.XA priority Critical patent/CN114588446A/en
Publication of CN114588446A publication Critical patent/CN114588446A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/0816—Measuring devices for examining respiratory frequency
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient ; user input means
    • A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
    • 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
    • A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
    • 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
    • A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
    • 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0208—Oxygen
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/18—General characteristics of the apparatus with alarm
    • 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
    • A61M2230/42—Rate

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Pathology (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Emergency Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Physiology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

The invention provides a multichannel oropharyngeal ventilation system for anesthesia, which comprises a fixed cover, a binding belt, a ventilation support module, a respiratory state detection module and a ventilation adjustment module, wherein a trachea channel, a laryngeal tube channel and a respiratory valve channel are respectively and correspondingly embedded in a trachea, a laryngeal tube and an oxygen supply tube; the ventilation support module is used for supporting the fixed mask, the trachea channel, the laryngeal tube channel and the breather valve channel so as to maintain the normal oxygen supply of the patient; the breathing state detection module detects the breathing state of the patient to realize dynamic monitoring of the breathing of the patient; and the ventilation adjusting module adjusts the ventilation mode of the patient according to the detection data of the breathing state detecting module. The invention ensures that the respiratory state of the patient can be more accurately determined and the misjudgment is prevented by the mutual matching of the detection component and the sampling component, and simultaneously adjusts the ventilation strategy of the pharynx according to the respiratory frequency of the patient so as to improve the comfort of the patient in the anesthesia process and ensure the safety of the anesthesia process.

Description

Multichannel oropharyngeal ventilation system for anesthesia
Technical Field
The application relates to the technical field of medical equipment, in particular to a multichannel oropharyngeal ventilation system for anesthesia.
Background
At present, when an anesthesia operation is carried out on a patient or some shock patients are subjected to first aid by an anesthesia department, a channel of the oral cavity and the pharynx needs to be opened preferentially so as to ensure that the breath of the patient is normal. However, the general oropharyngeal airway is only used for opening the oral cavity, and at present, the oral airway can be used for oxygen inhalation, but the patient is difficult to eat or measure the oral body temperature, the operation of medical staff is very complicated and laborious, the teeth of the user have no stress points, and the facial muscles are stiff after long-term use. CN108452412B prior art discloses a department of anesthesia uses multichannel oropharynx air-breather, adopts the form of fixed cover and cock body, and is fixed with trachea and choke pipe, prevents that choke pipe and trachea from shifting, and simultaneously, the inside meshing cover that sets up of fixed cover provides the impetus for patient's tooth, avoids the stiff problem of holding of facial muscle that causes for long-time use, adopts tongue depressor below installation temperature sensor's mode moreover, can carry out automatic measure to oral cavity temperature. However, it is inconvenient to fix a plurality of tubes for use, and it is inconvenient to assemble a plurality of tubes for use, and it is inconvenient to press the tongue, and it is not possible to protect the mouth of the patient. CN201510046282.3 prior art discloses a multichannel oropharyngeal airway device for anesthesia department, the adopted technical scheme is: the inside of being responsible for includes branch pipe one and branch pipe two, and the front end of being responsible for is equipped with the connector, is equipped with connecting hole and gas tube, inflatable ball on the connector, and the other end of being responsible for is equipped with the gasbag, and the formation oropharynx portion air passage that can be stable moreover can carry out such as inserting the stomach tube, inhale operations such as phlegm under same device. However, the inflation amount of the air bag cannot be adjusted according to the change of different patients, and the device causes discomfort of the oral cavity and the throat of the patient, thereby causing extremely poor comfort experience.
The invention aims to solve the problems that the laryngeal part and the pharyngeal part of the multichannel oropharyngeal airway device in the field are extremely easy to dry, multichannel ventilation cannot be carried out, oxygen supply cannot be adjusted, sputum cannot be sucked, the multichannel oropharyngeal airway device is extremely easy to displace and injure oral cavity or laryngeal mucosa and the like.
Disclosure of Invention
The invention aims to provide a multichannel oropharyngeal ventilation system for anesthesia, aiming at the defects.
The invention adopts the following technical scheme:
a multichannel oropharyngeal ventilation system for anesthesia comprises a fixed cover, a binding band, a ventilation support module, a breathing state detection module and a ventilation adjustment module, wherein an air pipe, a throat pipe and an oxygen supply pipe are sequentially arranged on the fixed cover, and the fixed cover is fixed at the oral cavity of a patient by the binding band; the trachea channel, the throat channel and the breather valve channel are respectively and correspondingly embedded in the trachea, the throat and the oxygen supply tube;
the ventilation support module is used for supporting the fixed mask, the trachea channel, the laryngeal tube channel and the breather valve channel so as to maintain the normal oxygen supply of the patient;
the breathing state detection module detects the breathing state of the patient to realize dynamic monitoring of the breathing of the patient;
the ventilation adjusting module adjusts the ventilation mode of the patient according to the detection data of the respiratory state detecting module;
the breathing state detection module comprises a detection unit and an early warning unit, and the detection unit is used for detecting the breathing state of the patient; the early warning unit triggers an early warning signal according to the detection data of the detection unit;
the detection unit comprises a detection component and a sampling component, and the detection component is used for detecting the respiratory state in the tracheal passage; the sampling member is for sampling spontaneous breathing of the patient;
wherein the detection member is disposed in the tracheal passage; the sampling component is arranged on the bed plate to sample the spontaneous respiration of the patient;
the sampling component comprises a supporting seat, a group of supporting vertical plates, a plurality of vibration sensors and a plurality of piezoelectric sensors, wherein the supporting seat is arranged on the bed plate and faces the chest or the abdominal cavity of the patient; the supporting vertical plates are symmetrically arranged at the head end and the tail end of the supporting seat and are tightly attached to the chest cavity or the abdominal cavity of the patient when in use; each vibration sensor is arranged on the supporting vertical plate;
acquiring N piezoelectric data values a in one sampling period T of the piezoelectric sensoriThe piezo-electric data values are processed according to the following formula to obtain piezo-electric detection values re (t):
Figure BDA0003564691050000021
in the formula, max (a)i) Is the maximum of the sampled piezoelectric data values; min (a)i) Is the minimum of the sampled piezoelectric data values; n is the total number of times of the sampled data; i belongs to N;
calculating a generated charge value electric (T) according to the piezoelectric detection value re (T) in one sampling period T:
Figure BDA0003564691050000022
wherein S is the contact area of the patient and the piezoelectric sensor; η is the piezoelectric coefficient of the patient's skin when in contact with the piezoelectric sensor, the value of which is related to the characteristics of the piezoelectric material; r is the stress applied by the patient to each of the piezoelectric sensors;
wherein, the charge value electric (T) generated in one sampling period T corresponds to the respiratory frequency f (T) of the patient in one sampling period T, and satisfies the following formula:
f(t)＝k·Electricity(t)+b
wherein b is the base of the breathing frequency of the patient, the value of which is related to the intrinsic breathing frequency of the patient; k is an adjustment coefficient, and the value of k satisfies:
Figure BDA0003564691050000031
in the formula, τAge (age)Is the patient age factor; tau isBody weightIs the patient weight coefficient; tau isCranial pressureIs the cranial pressure coefficient of the patient; tau isBody temperatureIs the patient temperature coefficient; tau isAmount of anesthesiaApplying an anesthetic volume factor to the patient; tau isSexIs the sex coefficient of the patient; tau isDrug allergyIs the drug allergy coefficient of the patient;
and if the value of f (T) in a sampling period T is lower than a set monitoring threshold value, triggering early warning, and prompting an operator to adjust a ventilation channel of the ventilation adjusting module.
Optionally, the ventilation adjusting module comprises an adjusting unit and a sputum suction unit, and the adjusting unit is used for adjusting the tracheal channel, the laryngeal tube channel and the respiratory valve channel for ventilation; the sputum suction unit is used for sucking and separating sputum in the oral cavity of the patient so as to realize cleanness of the oral cavity and the throat;
the adjusting unit comprises an on-off valve and an induction ring, and the on-off valve is respectively arranged in the air inlets of the tracheal channel, the laryngeal tube channel and the breather valve channel and is detachably connected with the tracheal channel, the laryngeal tube channel and the breather valve channel; the induction ring is embedded on the inner wall of the on-off valve, and when any one of the trachea channel, the throat tube channel and the breather valve channel is in use, the induction ring sends out an induction signal to prompt an operator.
Optionally, the ventilation support module comprises a support tube and a laryngeal mask, the support tube being for supporting the laryngeal mask to establish a breathing passage in the pharynx of the patient; the support tube is connected with the laryngeal mask to limit displacement of the laryngeal mask; the supporting catheter and the laryngeal mask are both made of plastic silica gel materials.
Optionally, the detecting member includes a humidity sensor and a detecting seat, the humidity sensor is used for detecting humidity in the tracheal passage so as to analyze the respiratory state of the patient according to the humidity; the detection seat is used for supporting the humidity sensor; the humidity sensor is embedded in the inner cavity of the tracheal channel to collect humidity data generated in the tracheal channel when the patient breathes.
Optionally, the ventilation system further comprises a deformation module for supporting the ventilation support module to prevent the ventilation support module from shifting; the deformation modules are symmetrically arranged on the outer side wall of the ventilation support module;
the deformation module comprises a limiting unit and an inflating unit, and the limiting unit is used for limiting the ventilation support module so as to prevent the ventilation support module from deviating; the inflation unit is used for inflating the limiting unit; a group of storage cavities is formed in the outer side wall of the ventilation support module, and the limiting units are symmetrically arranged in the group of storage cavities; the limiting unit comprises a group of deformable inflatable hoods, and the group of inflatable hoods are symmetrically arranged on two sides of the ventilation supporting module; wherein a group of said inflatable hoods are hidden in said storage chamber in an uninflated state.
Optionally, the inflation unit includes an inflator pump, an inflation pipeline, and an inflation control panel, and the inflation control panel is configured to control an inflation amount of the inflator pump;
one end of the inflation pipeline is connected with the inflation pump, and the other end of the inflation pipeline is connected with the detention pipe head so as to inflate a group of inflation covers; the inflator pump is used for inflating the group of inflatable hoods;
the inflation control panel comprises a touch screen and a control menu, and the touch screen receives operation data of an operator to trigger different inflation amounts; the control menu is arranged on the peripheral side of the touch screen.
Optionally, the ventilation system further comprises a sensing module, wherein the sensing module is used for sensing the pharyngeal state of the patient so as to realize early warning of the pharyngeal state.
The beneficial effects obtained by the invention are as follows:
1. the breathing state of the patient can be more accurately determined through the mutual matching of the detection component and the sampling component, the misjudgment is prevented, and meanwhile, the ventilation strategy of the pharynx is adjusted according to the breathing frequency of the patient, so that the comfort of the patient in the anesthesia process is improved, and the safety of the anesthesia process is ensured;
2. the early warning unit is used for prompting the operator, so that the operator can know the current breathing state of the patient;
3. the sputum is extracted by matching the air blowing component in the sputum suction unit with the sputum suction component, so that the pressure balance of the sputum suction position is maintained, the sputum suction efficiency is improved, and the nursing intensity of nurses is also reduced;
4. through the matching of the laryngeal mask and the supporting catheter, the established exhalation passage can maintain the smooth breath of the patient and the protection of the mucous membrane of the throat;
5. the deformation module and the ventilation support module are used for carrying out auxiliary support, so that the deviation of the tracheal passage, the laryngeal passage and the respiratory valve passage is prevented, and the laryngeal mucosa and the oral mucosa are prevented from being damaged;
6. detect the humidity of patient's throat through the response module, if exceed the control threshold value of setting for, then trigger the suggestion to maintain the moist of patient's throat prevents that the throat mucosa from receiving the stimulation, arouses the discomfort, simultaneously, promotes the nursing to patient's throat, promotes patient's travelling comfort.
For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description of the invention and accompanying drawings, which are provided for purposes of illustration and description only and are not intended to limit the invention.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate like parts throughout the different views.
FIG. 1 is an overall block diagram of the present invention.
Fig. 2 is a top view of the vented support module of the present invention.
Fig. 3 is a side view of the vented support module of the present invention.
Fig. 4 is an enlarged schematic view of a point a in fig. 3.
FIG. 5 is a schematic view of the construction of the inflatable unit of the present invention.
FIG. 6 is a schematic view of the sputum aspirating member and the air blowing member of the present invention.
Fig. 7 is a schematic view of an application scenario of the patient and the sampling member of the present invention.
Fig. 8 is a partial top view schematic of the bed plate and the sampling member of the present invention.
Description of reference numerals: 1-a trachea; 2-a throat pipe; 3-an oxygen supply tube; 4-a support conduit; 5-inflating cover; 6-a storage chamber; 7-a suction catheter; 8-a gas supply pipeline; 9-a connector; 10-a retention tube head; 11-an inflatable control panel; 12-a touch screen; 13-a laryngeal mask; 14-control menu; 15-an inflation pipe; 16-a suction head; 17-a return conduit; 18-a blast duct; 19-sputum aspiration lumen; 20-a suction pump; 21-auxiliary tank; 22-a stationary shield; 23-bed board; 24-a support seat; 25-supporting a vertical plate; 26-patient; 27-a piezoelectric sensor; 28-blower.
Detailed Description
The following embodiments are provided to illustrate the present invention by specific examples, and those skilled in the art will be able to understand the advantages and effects of the present invention from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.
The first embodiment.
According to the figures 1, 2, 3, 4, 5, 6, 7 and 8, the embodiment provides a multichannel oropharyngeal airway system for anesthesia, which comprises a fixed hood, a binding band, an airway supporting module, a respiratory state detecting module and an airway adjusting module, wherein the fixed hood is provided with a trachea, a laryngeal tube and an oxygen supply tube in sequence, and the binding band fixes the fixed hood at the oral cavity of a patient; the trachea channel, the throat channel and the breather valve channel are respectively and correspondingly embedded in the trachea, the throat and the oxygen supply tube;
the ventilation support module is used for supporting the fixed mask, the trachea channel, the laryngeal tube channel and the breather valve channel so as to maintain the normal oxygen supply of the patient;
the breathing state detection module detects the breathing state of the patient to realize dynamic monitoring of the breathing of the patient;
the ventilation adjusting module adjusts the ventilation mode of the patient according to the detection data of the respiratory state detecting module;
the ventilation system also comprises a processor, wherein the processor is in control connection with the respiratory state detection module and is used for carrying out centralized processing on detection data of the respiratory state detection module so as to improve the detection efficiency of the respiratory state of the patient;
the breathing state detection module comprises a detection unit and an early warning unit, and the detection unit is used for detecting the breathing state of the patient; the early warning unit triggers an early warning signal according to the detection data of the detection unit;
the detection unit comprises a detection component and a sampling component, and the detection component is used for detecting the respiratory state in the tracheal passage; the sampling member is for sampling spontaneous breathing of the patient;
wherein the detection member is disposed in the tracheal passage; the sampling component is arranged on the bed board to sample the spontaneous respiration of the patient; wherein the sampling member is detachably connected with the bed plate, so that the sampling member can sample the respiratory state of the patient;
optionally, the detecting member includes a humidity sensor and a detecting seat, the humidity sensor is used for detecting humidity in the tracheal passage so as to analyze the respiratory state of the patient according to the humidity; the detection seat is used for supporting the humidity sensor; the humidity sensor is embedded in the inner cavity of the tracheal channel to collect humidity data generated in the tracheal channel when the patient breathes; the humidity sensor is in a patch type and is hidden in the detection seat; when the patient breathes, the generated moisture can be captured by the humidity sensor, and the current oxygen supply state and the humidity in the tracheal passage can be obtained according to different values of the humidity sensor; in this embodiment, the humidity in the tracheal passage is related to the oxygen supply status;
in addition, the breathing state of the patient can be more accurately determined through the mutual matching of the detection component and the sampling component, and the misjudgment is prevented;
the sampling component comprises a supporting seat, a group of supporting vertical plates, a plurality of vibration sensors and a plurality of piezoelectric sensors, wherein the supporting seat is arranged on the bed plate and faces the chest or the abdominal cavity of the patient; the supporting vertical plates are symmetrically arranged at the head end and the tail end of the supporting seat and are tightly attached to the chest cavity or the abdominal cavity of the patient when in use; each vibration sensor is arranged on the supporting vertical plate; the supporting vertical plate is a flexible plastic sheet, and each vibration sensor is arranged on the inner wall of one side, which is in contact with the patient, of the supporting vertical plate so as to detect the vibration data of the patient; in addition, when the vibration sensor cannot detect the vibration of the patient, the processor controls the piezoelectric sensor to collect the piezoelectric data value of the patient so as to improve the accuracy of the value of the piezoelectric sensor; meanwhile, the false operation of the patient can be detected through the detection of the vibration sensor;
acquiring N piezoelectric data values a in one sampling period T of the piezoelectric sensoriThe piezo-electric data values are processed according to the following formula to obtain piezo-electric detection values re (t):
Figure BDA0003564691050000071
in the formula, max (a)i) Is the most significant of the sampled piezoelectric data valuesA large value; min (a)i) Is the minimum of the sampled piezoelectric data values; n is the total number of times of the sampled data; i belongs to N;
calculating a generated charge value electric (T) according to the piezoelectric detection value re (T) in one sampling period T:
Figure BDA0003564691050000072
wherein S is the contact area of the patient and the piezoelectric sensor; η is the piezoelectric coefficient of the patient's skin when in contact with the piezoelectric sensor, the value of which is related to the characteristics of the piezoelectric material; r is the stress applied by the patient to each of the piezoelectric sensors; the value of r can be understood as the gravity exerted by the patient on the support seat in the embodiment;
wherein, the charge value electric (T) generated in one sampling period T corresponds to the respiratory frequency f (T) of the patient in one sampling period T, and satisfies the following formula:
f(t)＝k·Electricity(t)+b
wherein b is the base of the respiratory frequency of the patient, and the value of the base is related to the inherent respiratory frequency of the patient, wherein if the inherent respiratory frequency of the patient changes, the size of b is increased; k is an adjustment coefficient, and the value of k satisfies:
Figure BDA0003564691050000081
in the formula, τAge (age)Is the patient age factor; tau isBody weightIs the patient weight coefficient; tau isCranial pressureIs the cranial pressure coefficient of the patient; tau isBody temperatureIs the patient temperature coefficient; tau isAmount of anesthesiaApplying an anesthesia volume factor to the patient; tau.SexIs the sex coefficient of the patient; tau isDrug allergyIs the drug allergy coefficient of the patient; the change of the respiratory frequency of the patient is related to the age, the weight, the intracranial pressure, the body temperature (fever), the applied anesthetic dosage, the sex and the drug allergy of the patient, and an operator can select and use the respiratory frequency according to the actual condition of the patient-adapted coefficients for determining the breathing frequency of the patient; for example: if the patient is in a drug allergic condition, the breathing frequency of the patient is firstly accelerated and then gradually slowed down, and the breathing is repeated infrequently (the heart rate is changed);
after the respiratory frequency of the patient is determined, the ventilation strategy of the pharynx can be adjusted according to the respiratory frequency of the patient, so that the comfort of the patient in the anesthesia process is improved, and the safety of the anesthesia process is ensured;
if the value of f (T) in a sampling period T is lower than a set monitoring threshold value, triggering early warning, and prompting an operator to adjust a ventilation channel of the ventilation adjusting module;
the early warning unit comprises early warning signals and early warning indicator lamps, and the early warning indicator lamps trigger different colors of indications according to the early warning signals of different grades; wherein the early warning signal is triggered according to the relationship between the respiratory frequency f (t) and a monitoring threshold;
in this embodiment, different types of warning signals are triggered when the following conditions are simultaneously met:
f(t)＞Frequency；
Shaking＞ZOOM；
wherein Shaking is the vibration times detected by the vibration sensor; ZOOM is vibration observation threshold
Frequency is a Frequency monitoring threshold, and specific values are the following conditions:
Frequency＝Normal·z，z＝1,2,3,4,5
in the formula, Normal is a standard frequency detection threshold; z is a threshold level classification: calculating the obtained Frequency as the corresponding z-th early warning grade;
wherein, ZOOM is a vibration observation threshold, and the specific values are as follows:
Figure BDA0003564691050000082
in the formula, D0Is a vibration base value; n is that the vibration sensor detects the vibration of the patientThe number of times; s is a threshold level classification: calculating the obtained ZOOM as a corresponding s-th early warning grade; wherein the value 8 is the maximum number of oscillations allowed for the patient, and is between [0 and 8 ]]The vibration in the range can not cause false triggering early warning;
when each early warning level is triggered, prompting the operator to enable the operator to know the current breathing state of the patient;
optionally, the ventilation support module comprises a support tube and a laryngeal mask, the support tube being for supporting the laryngeal mask to establish a breathing passage in the pharynx of the patient; the support tube is connected with the laryngeal mask to limit displacement of the laryngeal mask; the supporting catheter and the laryngeal mask are both made of plastic silica gel materials; the supporting catheter is made of plastic silica gel materials, so that the supporting catheter can be in flexible contact with oral mucosa or laryngeal mucosa when placed in the throat, and mucosa damage caused by friction is prevented; in addition, the cooperation of the laryngeal mask and the supporting catheter ensures that the ventilation efficiency of the patient can be effectively protected and the normal vital signs can be maintained in the anesthesia process of the patient; meanwhile, through the matching of the laryngeal mask and the supporting catheter, the established exhalation passage can maintain the smooth breath of the patient and protect the mucous membrane of the laryngeal; in addition, the supporting conduit is in a shape of flexible and bendable deformation, and is not limited to the mode illustrated in the attached drawings;
optionally, the ventilation adjusting module comprises an adjusting unit and a sputum suction unit, and the adjusting unit is used for adjusting the tracheal channel, the laryngeal tube channel and the respiratory valve channel for ventilation; the sputum suction unit is used for sucking sputum in the oral cavity of the patient so as to realize cleanness of the oral cavity and the throat;
the adjusting unit comprises an on-off valve and an induction ring, and the on-off valve is respectively arranged in the air inlets of the tracheal channel, the laryngeal tube channel and the breather valve channel and is detachably connected with the tracheal channel, the laryngeal tube channel and the breather valve channel; the induction ring is embedded on the inner wall of the on-off valve, and when any one of the tracheal channel, the laryngeal tube channel and the breather valve channel is in use, the induction ring sends out an induction signal to prompt an operator;
the sputum suction unit comprises a suction head, a suction catheter and a sputum suction member, and the suction head is hidden in the laryngeal mask; the suction head is used for sucking the sputum in the throat so as to be matched with the suction catheter to pump the sputum out of the throat; one end of the suction catheter is connected with the suction head, and the other end of the suction catheter is connected with the sputum suction member; in this embodiment, the suction head is hidden on the outer wall of the laryngeal mask, and when sputum exists in the throat or trachea of the patient, the sputum can enter the suction head and be sucked out through the sputum suction member;
the sputum suction component comprises a sputum suction cavity, a backflow conduit, a suction pump and an auxiliary tank, and two ends of the backflow conduit are respectively connected with the sputum suction cavity and the middle part of the auxiliary tank; the extraction pump is arranged at the upper top of the auxiliary tank; a negative pressure is formed between the auxiliary tank and the sputum suction cavity, and sputum in the throat can be extracted through the suction catheter and the suction head;
the sputum suction unit also comprises a blowing component, and the blowing component is used for blowing air to the sputum suction part so as to be matched with the sputum suction component to extract sputum and maintain the pressure balance of the sputum suction position;
the air blowing component is matched with the sputum sucking component, the patient can quickly breathe out (or be sucked out by the sputum sucking component) after finishing one-time inspiration, and the flowing air can take the sputum out of the body, so that the effect of cleaning the sputum is achieved;
the blowing component comprises a blower, a blowing guide pipe, a connector, a pressure sensor and a flow sensor, and the blower is connected with the connector through the blowing guide pipe; wherein the connector is connected with the return conduit; the connector is a three-way connector; the pressure sensor is used for detecting the pressure value of the return conduit; the flow sensor is used for detecting the flow of the gas transmitted into the return duct by the blast duct;
the blast volume W of the blower satisfies:
Figure BDA0003564691050000101
in the formula, niThe flow coefficient is the blast air, wherein, the value of the gas blown into the reflux duct is 1, and the value of the gas blown into the reflux duct is-1 when the sputum suction component is extracted; q is the mass of fluid per unit time that air passes through the effective cross section of the return conduit; a is the effective cross-sectional area of the return conduit, R is the gas constant, T is the temperature, b is the critical pressure ratio, puIs the pressure upstream of the return conduit, pdIs the pressure downstream of the return conduit; the parameters can be set according to actual needs, and are not described in detail herein;
during the exhalation process of the patient, the air blowing component supplies air flow to be matched with the inhalation process of the patient, and the airway pressure and the exhalation time of the patient also need to be matched with the sputum suction component and the air blowing component so as to prevent the respiratory tract of the patient from collapsing and causing damage to the mucous membrane of the larynx;
optionally, when the operator places the support conduit in the oral cavity of the patient, the support conduit is supported to prevent the support conduit from being deviated to cause the oral mucosa to be damaged; wherein the ventilation system further comprises a deformation module for supporting the ventilation support module to prevent the ventilation support module from shifting; the deformation modules are symmetrically arranged on the outer side wall of the ventilation support module; the deformation module comprises a limiting unit and an inflating unit, and the limiting unit is used for limiting the ventilation support module so as to prevent the ventilation support module from deviating;
the inflation unit is used for inflating the limiting unit; a group of storage cavities is formed in the outer side wall of the ventilation support module, and the limiting units are symmetrically arranged in the group of storage cavities; the limiting unit comprises a group of deformable inflatable hoods, and the group of inflatable hoods are symmetrically arranged on two sides of the ventilation supporting module; wherein a group of said inflatable hoods are hidden in said storage chamber in an uninflated state;
in addition, after the deformation module supports the ventilation support module, the patient can bite the inflatable cover, so that the support conduit of the ventilation support module cannot generate radial deviation;
the group of inflatable hoods form a group of flat fin-shaped supporting tables perpendicular to the axis of the supporting catheter after the inflatable units are inflated, and the supporting tables can be occluded by the patient and cannot be broken;
meanwhile, when the inflation unit inflates the inflation cover, the inflation amount inflated into the inflation cover is determined according to the volume of the oral cavity of the patient, and is not repeated herein; after the operator can communicate with the patient, the operator selects the most appropriate inflation quantity, so that the inflatable cover can stably support the support conduit;
optionally, the inflation unit includes an inflator pump, an inflation pipeline, and an inflation control panel, and the inflation control panel is configured to control an inflation amount of the inflator pump;
one end of the inflation pipeline is connected with the inflation pump, and the other end of the inflation pipeline is connected with the detention pipe head so as to inflate a group of inflation covers; the inflator pump is used for inflating the group of inflatable hoods; the inflation control panel comprises a touch screen and a control menu, and the touch screen receives operation data of an operator to trigger different inflation amounts; the control menu is arranged on the peripheral side of the touch screen; in this embodiment, the inflation pipeline and the detention tube head are detachably connected, so that the inflation pump can be detached after inflating a group of inflation covers, thereby saving space and preventing foreign objects from affecting the respiration of a patient;
the inflation unit further comprises a microprocessor, and the microprocessor is in control connection with the inflation control panel and the inflation pump; after the inflation control panel receives the input instruction of the operator, the inflation pump is controlled under the control of the microprocessor to trigger different inflation amounts;
the operator controls the inflator pump through the touch screen and the control menu in the process of inflating the inflatable hoods so as to adjust different inflation amounts of the inflator pump to a group of inflatable hoods;
the deformation module and the ventilation support module are used for carrying out auxiliary support, so that when the support catheter supports the tracheal passage, the laryngeal tube passage and the breather valve passage, the tracheal passage, the laryngeal tube passage and the breather valve passage are prevented from offsetting to damage laryngeal mucosa and oral mucosa.
Example two.
This embodiment should be understood to include at least all the features of any one of the above embodiments and further improve on the same, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, the ventilation system further includes a sensing module for sensing the pharyngeal status of the patient to realize the early warning of the pharyngeal status;
the sensing module comprises a sensing unit and a prompting unit, and the sensing unit is used for sensing the dryness of the pharynx; the prompting unit triggers prompting signals of different grades according to the data of the sensing unit;
the sensing unit comprises a humidity sensor, a transmitter and a receiver, wherein the humidity sensor is used for detecting the humidity of the throat of the patient; the transmitter transmits the detection data of the humidity sensor to the receiver; the receiver is used for receiving the data of the humidity sensor transmitted by the transmitter;
the prompting unit acquires the data of the humidity sensor received by the receiver so as to prompt according to the current humidity data of the throat of the patient;
the prompting unit comprises a prompting lamp and a buzzer, and the prompting lamp is used for triggering different indicating lamps for different humidity data; the buzzer triggers prompts with different volumes according to different humidity data;
the prompting unit further comprises a controller, a display screen, a database and a prompting suggestion list, wherein the display screen is used for displaying the prompting suggestion list; the database is preset with solution strategies corresponding to various humidity sensor data, and a prompt suggestion list is generated according to the solution strategies; the controller is respectively in control connection with the display screen, the database, the prompt lamp and the buzzer, and the display screen, the database, the prompt lamp and the buzzer are controlled in a centralized manner through the controller;
the controller acquires humidity data of the current humidity sensor, compares the humidity data with a humidity monitoring threshold value, and triggers and prompts a corresponding interval grade of a suggestion list if the humidity data exceeds the set monitoring threshold value;
if Wet < monitoring threshold Monitor, the patient's larynx is too dry;
if Wet is larger than the monitoring threshold value Monitor, the current humidity condition of the throat of the patient is good;
wherein, Wet is the detection value of the humidity sensor;
when the detection value Wet of the humidity sensor and the monitoring threshold value Monitor exist:
Message＝λ·|Wet-Monitor+G
in the formula, the Message is the interval grade corresponding to the prompt suggestion list; g is a water adjustment base, the value of which is related to the amount of water applied to the mouth of the patient before anesthesia; and lambda is an interval grade determination coefficient, and satisfies the following conditions:
λ＝Water·j，j＝1,2,3,4,5
wherein j is the level of water applied to the patient's mouth; water is the base Water amount applied for each grade;
the calculated Message is the corresponding interval grade of the prompt suggestion list, and the operator can apply corresponding physiological saline or other edible pure solution to the oral cavity of the patient according to the corresponding interval grade so as to maintain the moistening of the throat of the patient and prevent the mucous membrane of the throat from being stimulated and causing discomfort.
The disclosure is only a preferred embodiment of the invention, and is not intended to limit the scope of the invention, so that all equivalent technical changes made by using the contents of the specification and the drawings are included in the scope of the invention, and further, the elements thereof can be updated as the technology develops.

Claims (6)

1. A multichannel oropharyngeal ventilation system for anesthesia comprises a fixing cover and a binding belt, and is characterized by further comprising a ventilation supporting module, a breathing state detecting module and a ventilation adjusting module, wherein a trachea, a laryngeal tube and an oxygen supply tube are sequentially arranged on the fixing cover, and the fixing cover is fixed at the oral cavity of a patient by the binding belt; the trachea channel, the throat channel and the breather valve channel are respectively and correspondingly embedded in the trachea, the throat and the oxygen supply tube;
the ventilation support module is used for supporting the fixed mask, the trachea channel, the laryngeal tube channel and the breather valve channel so as to maintain the normal oxygen supply of the patient;
the breathing state detection module detects the breathing state of the patient to realize dynamic monitoring of the breathing of the patient;
the ventilation adjusting module adjusts the ventilation mode of the patient according to the detection data of the respiratory state detecting module;
the breathing state detection module comprises a detection unit and an early warning unit, and the detection unit is used for detecting the breathing state of the patient; the early warning unit triggers an early warning signal according to the detection data of the detection unit;
the detection unit comprises a detection component and a sampling component, and the detection component is used for detecting the respiratory state in the tracheal passage; the sampling member is for sampling spontaneous breathing of the patient;
wherein the detection member is disposed in the tracheal passage; the sampling component is arranged on the bed plate to sample the spontaneous respiration of the patient;
the sampling component comprises a supporting seat, a group of supporting vertical plates, a plurality of vibration sensors and a plurality of piezoelectric sensors, wherein the supporting seat is arranged on the bed plate and faces the chest or the abdominal cavity of the patient; the supporting vertical plates are symmetrically arranged at the head end and the tail end of the supporting seat and are tightly attached to the chest cavity or the abdominal cavity of the patient when in use; each vibration sensor is arranged on the supporting vertical plate;
acquiring N piezoelectric data values a in one sampling period T of the piezoelectric sensoriThe piezo-electric data values are processed according to the following formula to obtain piezo-electric detection values re (t):
Figure FDA0003564691040000011
in the formula, max (a)i) Is the maximum of the sampled piezoelectric data values; min (a)i) Is the minimum of the sampled piezoelectric data values; n is the total number of times of the sampled data; i belongs to N;
calculating a generated charge value electric (T) according to the piezoelectric detection value re (T) in one sampling period T:
Figure FDA0003564691040000021
wherein S is the contact area of the patient and the piezoelectric sensor; η is the piezoelectric coefficient of the patient's skin when in contact with the piezoelectric sensor, the value of which is related to the characteristics of the piezoelectric material; r is the stress applied by the patient to each of the piezoelectric sensors;
wherein, the charge value electric (T) generated in one sampling period T corresponds to the respiratory frequency f (T) of the patient in one sampling period T, and satisfies the following formula:
f(t)＝k·Electricity(t)+b
wherein b is the base of the patient's breathing frequency, the value of which is related to the patient's natural breathing frequency; k is an adjustment coefficient, and the value of k satisfies:
Figure FDA0003564691040000022
in the formula, τAge (age)Is the patient age factor; tau isBody weightIs the patient weight coefficient; tau isCranial pressureIs the cranial pressure coefficient of the patient; tau isBody temperatureIs the patient temperature coefficient; tau isAmount of anesthesiaApplying an anesthetic volume factor to the patient; tau isSexIs the sex coefficient of the patient; tau isDrug allergyIs the drug allergy coefficient of the patient;
and if the value of f (T) in a sampling period T is lower than a set monitoring threshold value, triggering early warning, and prompting an operator to adjust a ventilation channel of the ventilation adjusting module.
2. The multichannel oropharyngeal ventilation system for anesthesia of claim 1, wherein the ventilation adjustment module comprises an adjustment unit and a sputum aspiration unit, the adjustment unit being configured to adjust the tracheal channel, the laryngeal channel and the respiratory valve channel of the ventilation; the sputum suction unit is used for sucking and separating sputum in the oral cavity of the patient so as to realize cleanness of the oral cavity and the throat;
the adjusting unit comprises an on-off valve and an induction ring, and the on-off valve is respectively arranged in the air inlets of the tracheal channel, the laryngeal tube channel and the breather valve channel and is detachably connected with the tracheal channel, the laryngeal tube channel and the breather valve channel; the induction ring is embedded on the inner wall of the on-off valve, and when any one of the trachea channel, the throat tube channel and the breather valve channel is in use, the induction ring sends out an induction signal to prompt an operator.
3. The multichannel oropharyngeal ventilation system for anesthesia of claim 2, wherein the ventilation support module comprises a support tube and a laryngeal mask, the support tube being adapted to support the laryngeal mask to establish a breathing channel of the patient's pharynx; the support tube is connected with the laryngeal mask to limit displacement of the laryngeal mask; the supporting catheter and the laryngeal mask are both made of plastic silica gel materials.
4. The multichannel oropharyngeal ventilation system for anesthesia of claim 3, characterized in that the detection means comprise a humidity sensor and a detection seat, the humidity sensor being adapted to detect humidity in the tracheal passage for analyzing the respiratory state of the patient as a function of humidity; the detection seat is used for supporting the humidity sensor; the humidity sensor is embedded in the inner cavity of the tracheal channel to collect humidity data generated in the tracheal channel when the patient breathes.
5. The multichannel oropharyngeal ventilation system for anesthesia of claim 4, further comprising a deformation module for supporting the ventilation support module to prevent deflection of the ventilation support module; the deformation modules are symmetrically arranged on the outer side wall of the ventilation support module;
the deformation module comprises a limiting unit and an inflating unit, and the limiting unit is used for limiting the ventilation support module so as to prevent the ventilation support module from deviating; the inflation unit is used for inflating the limiting unit; a group of storage cavities is formed in the outer side wall of the ventilation support module, and the limiting units are symmetrically arranged in the group of storage cavities; the limiting unit comprises a group of deformable inflatable hoods, and the group of inflatable hoods are symmetrically arranged on two sides of the ventilation supporting module; wherein a group of said inflatable hoods are hidden in said storage chamber in an uninflated state.
6. The multichannel oropharyngeal ventilation system for anesthesia of claim 5, wherein the inflation unit comprises an inflator, an inflation tube, and an inflation control panel for controlling an inflation amount of the inflator;
one end of the inflation pipeline is connected with the inflation pump, and the other end of the inflation pipeline is connected with the detention pipe head so as to inflate a group of inflation covers; the inflator pump is used for inflating a group of the inflatable hoods;
the inflation control panel comprises a touch screen and a control menu, and the touch screen receives operation data of an operator to trigger different inflation amounts; the control menu is arranged on the peripheral side of the touch screen.
CN202210299450.XA 2022-03-25 2022-03-25 Multichannel oropharyngeal ventilation system for anesthesia Withdrawn CN114588446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210299450.XA CN114588446A (en) 2022-03-25 2022-03-25 Multichannel oropharyngeal ventilation system for anesthesia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210299450.XA CN114588446A (en) 2022-03-25 2022-03-25 Multichannel oropharyngeal ventilation system for anesthesia

Publications (1)

Publication Number Publication Date
CN114588446A true CN114588446A (en) 2022-06-07

Family

ID=81819072

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210299450.XA Withdrawn CN114588446A (en) 2022-03-25 2022-03-25 Multichannel oropharyngeal ventilation system for anesthesia

Country Status (1)

Country Link
CN (1) CN114588446A (en)

Similar Documents

Publication Publication Date Title
EP2648614B1 (en) Apparatus and method for the collection of samples of exhaled air
US8844534B2 (en) Tracheal tube with lumen for tracheal pressure measurement and technique for using the same
US20050051176A1 (en) Nasal and oral cannula apnea detection device
JPH02283378A (en) Respirator
JP2013517016A (en) Mask used for patients undergoing sedation endoscopic procedures
WO2006002364A3 (en) Endotracheal tube with integral heart, lung, and temperature monitor
US20090194114A1 (en) Laryngeal Mask Airway Installation Kit, Clip Device, and Laryngeal Mask Airway
CN111760140A (en) Respirator and control method thereof
CN109481805A (en) A kind of intranasal laryngeal airway conduit
US20150297852A1 (en) Oropharyngeal cannula comprising a dioxygen inlet and a carbon dioxide outlet
CN107362428B (en) Ventilation catheter
CN210355597U (en) Tracheotomy tube with temperature and humidity monitoring function
CN114588446A (en) Multichannel oropharyngeal ventilation system for anesthesia
CN213526718U (en) Device suitable for trachea opens patient&#39;s patency and inhales phlegm automatically
CN210992421U (en) Oropharynx breather pipe
CN214050078U (en) Lung auxiliary respiratory system with sputum excretion function
CN107308532A (en) Oropharyngeal airway with closed airbag
CN113440708A (en) Trachea cannula for trachea and bronchus interventional therapy
CN215275233U (en) Nasopharynx pipe of ventilating
US20170007790A1 (en) System and method for purging moisture from the inflation apparatus on an artificial airway
CN109718400A (en) The automatic phlegm sucking equipment of intelligence
CN219375757U (en) Novel multifunctional disposable laryngeal mask
CN220025802U (en) Airway humidification artificial nose
CN215461111U (en) Bidirectional pressure-reducing trachea cannula
CN217908545U (en) Trachea blocking training device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20220607