CN110251788B - Medical laryngeal mask - Google Patents
Medical laryngeal mask Download PDFInfo
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- CN110251788B CN110251788B CN201910652428.7A CN201910652428A CN110251788B CN 110251788 B CN110251788 B CN 110251788B CN 201910652428 A CN201910652428 A CN 201910652428A CN 110251788 B CN110251788 B CN 110251788B
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- ring
- tube
- drainage
- connecting pipe
- rectangular
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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
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
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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
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
-
- 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
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
- A61M16/0808—Condensation traps
-
- 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
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
- A61M16/0816—Joints or connectors
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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
- A61M2210/00—Anatomical parts of the body
- A61M2210/06—Head
- A61M2210/0625—Mouth
- A61M2210/065—Throat; Pharynx
Abstract
The invention relates to a medical laryngeal mask, which effectively solves the problems that the existing laryngeal mask cannot stably realize the connection between a connecting joint and a throat pipe and cannot clean water drops in the connecting joint; the technical scheme comprises the following steps: through set up positioner in the choke and be provided with quick unlocking device on connector, make to be connected between its choke of this medical laryngeal mask and the connector simply, it is convenient, can comparatively quick realization install between connector and the choke dismantle, the time has been saved for going on of operation, furthermore, through be provided with water droplet cleaning device in connector, make the connector inner wall of arranging in the outside air because of meeting the water droplet discharge connector of cold adhesion, the emergence of the more condition of backflowing to the patient trachea of water droplet gathering has been avoided, make the safety of this medical laryngeal mask, the reliability improves greatly.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a medical laryngeal mask.
Background
The laryngeal mask is an air breather used in surgery, an artificial airway can be quickly established through the laryngeal mask, the smooth operation of the surgery is ensured, and the laryngeal mask has the advantages of high placing success rate, small stimulation to human bodies, convenience in operation and the like, so that the laryngeal mask is widely used; in the prior art, the laryngeal mask mainly comprises a cuff, a laryngeal tube with one end connected with the cuff and an inflation tube communicated with the cuff, wherein the cuff is provided with a vent hole communicated with the laryngeal tube, the other end of the cuff inflation tube is provided with an inflation valve, the cuff in an air leakage state is inserted into the throat of a patient, and the cuff is inflated by inflating the inflation valve to abut against the throat of the patient, so that the patient can ensure that the patient can normally breathe through the vent hole and the laryngeal tube;
in the using process, the throat pipe is generally connected with the air supply device through the connecting joint, but the connecting mode between the existing connecting joint and the throat pipe is thin and not firm, the connecting joint is easily separated from the throat pipe due to external acting force, the air supply to a patient is interrupted, hidden dangers are brought to the operation, and if the connecting mode between the connecting joint and the throat pipe is too complex, the rescue of a doctor to the patient is influenced; moreover, when the existing laryngeal mask is used, more water vapor generated by breathing is contained in the gas exhaled by a patient, the water vapor is exhausted outwards through the laryngeal tube along with the gas exhaled by the patient, the gas passes through the connecting joint in the process of being exhausted outwards, and the connecting joint is located in the outside air, so that the water vapor is condensed into water drops when meeting cold in the connecting joint, along with the progress of an operation, the water drops on the inner wall of the connecting joint are more and more gathered, if the water drops adhered in the connecting joint are not cleaned in time, the water drops are very easy to flow back to the laryngeal tube and enter the trachea of the patient, potential safety hazards are brought to the patient, and the medical laryngeal mask is reliable in connection between the laryngeal tube and the connecting joint and can clean the water drops in the connecting joint.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the medical laryngeal mask, the throat pipe of the medical laryngeal mask is simply and conveniently connected with the connecting joint through the positioning device arranged in the throat pipe and the quick unlocking device arranged on the connecting joint, the connection between the throat pipe and the connecting joint can be quickly realized, the time for performing the operation is saved, in addition, the water drop cleaning device is arranged in the connecting joint, so that the water drops adhered to the inner wall of the connecting joint in the external air when meeting cold are discharged out of the connecting joint, the situation that more water drops are gathered and flow back to the trachea of a patient is avoided, and the safety and the reliability of the medical laryngeal mask are greatly improved.
The specific technical scheme is as follows:
a medical laryngeal mask comprises a throat pipe, wherein a cuff is connected to an opening at the front section of the throat pipe, the cuff is communicated with an inflation pipe, the other end of the throat pipe is communicated with a cylindrical barrel, an air passage and a drainage channel are longitudinally arranged in the throat pipe at intervals, the air passage and the drainage channel are respectively communicated with the cylindrical barrel, one end, away from the throat pipe, of the cylindrical barrel is provided with a drainage channel sealing device, a connecting pipe matched with the air passage is transversely and slidably connected in the cylindrical barrel, a positioning device is arranged in the cylindrical barrel, an unlocking device is arranged at the part, in sliding fit, of the connecting pipe and the cylindrical barrel, the connecting pipe penetrates through the side wall of the cylindrical barrel, one end, extending out of the cylindrical barrel, is communicated with a transfer cavity, an annular ring is transversely and slidably connected in the connecting pipe, the annular ring is driven by a driving device arranged in the connecting pipe, and a plurality of arc-shaped scraping plates are slidably connected in the annular ring along the diameter direction of the annular ring, be provided with humidity transducer and humidity transducer electric connection in the connecting pipe and have microcontroller, when humidity was too big in the connecting pipe, microcontroller control drive arrangement drive annular circle was reciprocating motion in the connecting pipe, be connected through connecting device between arc scraper blade and the annular circle, microcontroller control connecting device and make: when the driving device is controlled by the microcontroller to drive the annular ring to move from one end of the throat pipe to the middle transfer cavity in the connecting pipe, the plurality of arc-shaped scrapers are tightly attached to the inner wall of the connecting pipe, when the driving device drives the annular ring to move from the middle transfer cavity to one end of the throat pipe in the connecting pipe, the plurality of arc-shaped scrapers are separated from the inner wall of the connecting pipe, the bottom of the middle transfer cavity is communicated with the drainage valve, and the middle transfer cavity is communicated with the air supply hose from one end of the connecting pipe.
Preferably, the annular ring comprises a first annular ring and a second annular ring which are transversely spaced and coaxially arranged, the longitudinal two sides of the first annular ring and the longitudinal two sides of the second annular ring are fixedly connected through U-shaped sliders, the two annular rings are transversely connected to the inner wall of the connecting pipe in a sliding manner through the two U-shaped sliders, the inner wall of the connecting pipe is provided with a rectangular slide way in sliding fit with the U-shaped sliders, the first annular ring is fixedly connected with two first rectangular slide rails at intervals along the diameter direction of the first annular ring on one longitudinal side of the first annular ring, the arc-shaped scrapers are in sliding fit with the first annular ring and are arranged at intervals with the second annular ring, the second annular ring is fixedly connected with two second rectangular slide rails at intervals along the diameter direction of the second annular ring on one side of the second annular ring away from the two first rectangular slide rails, and the arc-shaped scrapers are in sliding fit with the corresponding second rectangular slide rails, two be sliding fit and set up with first ring interval between arc scraper blade and the second ring, connecting device sets up in first rectangle slide rail, second rectangle slide rail.
Preferably, the driving means includes: first ring, second ring cross its centre of a circle respectively fixedly connected with connecting rod and two connecting rod central point put fixed connection have an internal thread section of thick bamboo, an internal thread section of thick bamboo has the rotation to install in the connecting pipe and with the drive screw of the axle center setting of connecting pipe through screw-thread fit, drive screw is by being fixed in the motor drive of transfer intracavity, motor controller electric connection is in microcontroller.
Preferably, the arc-shaped scraper is respectively matched in the rectangular slide rails corresponding to the arc-shaped scraper in a sliding manner through the rectangular blocks, the connecting device comprises a return spring fixedly connected with the rectangular blocks, the other end of the return spring is fixedly connected to the side walls, close to the internal thread cylinder, of the first rectangular slide rail and the second rectangular slide rail which correspond to the return spring, the rectangular blocks are made of materials easy to be attracted by magnets, electromagnets are fixed to the side walls, close to the internal thread cylinder, of the first rectangular slide rail and the second rectangular slide rail, the electromagnets are connected in series in a voltage stabilizing loop arranged on the annular ring, and the voltage stabilizing loop is controlled by a microcontroller.
Preferably, the connecting pipe is arranged in a cylinder section of thick bamboo in one end with axle center fixedly connected with tubule and tubule keep away from connecting pipe one end with axle center fixedly connected with third ring, unlocking device includes: horizontal sliding connection has the fourth ring on the connecting pipe, the horizontal both sides of fourth ring all set up to inclined plane and third ring face be provided with to fourth ring one side with fourth ring matched with annular cavity, the third ring deviates from fourth ring one side and sets up to the inclined plane, the fourth ring deviates from intrinsic fifth ring of cover and fifth ring on the tubule of third ring one side and sets up to the inclined plane towards fourth ring one side, positioner includes that vertical interval sets up in cylinder section of thick bamboo and vertical sliding fit's location sloping block, between location sloping block and the cylinder section of thick bamboo through telescopic spring connection and its inclined plane of location sloping block set up towards the third ring.
Preferably, the upper end and the lower end in the cylinder are provided with a rectangular sliding groove extending transversely, the rectangular sliding groove is internally and transversely connected with a butting ring in a sliding manner, one side of the butting ring, which is deviated from the connecting pipe, is connected with a mounting ring fixed in the cylinder through a butting spring, and the butting ring is abutted against the positioning inclined block under the action of the butting spring.
Preferably, the cylinder is kept away from choke one end longitudinal separation and is provided with first round hole and second round hole with connecting pipe sliding fit, drainage way sealing device is equipped with the third round hole on outer toothed plate and the outer toothed plate that rotate to install in the cylinder including rotating, both ends mesh respectively about the outer toothed plate have rotate install gear and two gears in the cylinder mesh jointly and have the ring gear of rotation installation on the cylinder outer wall, throat one end lateral wall sliding fit is kept away from to the outer toothed plate cylinder, be equipped with in the cylinder with the drainage of drainage way intercommunication and drainage tube face outside toothed plate one end and outer toothed plate sliding fit.
Preferably, drainage way cooperation has drainage device and drainage device to include with drainage way matched with drainage hose, the outer one end intercommunication of cylinder section of thick bamboo is arranged in to drainage hose has the rectangle chamber, the rectangle intracavity is provided with drainage valve and this drainage valve and satisfies: when the gastric juice of the patient flows back, the drainage valve is opened, the drainage valve is in a closed state under a normal state, and the other end of the rectangular cavity is communicated with a waste liquid collecting device.
Preferably, the drainage valve includes and rotates two closing plates of installing in the rectangle intracavity through the pivot, both ends rotate through the pivot respectively and install in fixing the one-way bearing in the rectangle intracavity about the closing plate, be provided with respectively with closing plate matched with baffle in the rectangle intracavity, be fixed with on the closing plate with the pivot set up torsional spring and torsional spring one end fixed connection in the closing plate other end fixed connection in the baffle that corresponds with it.
Preferably, the inflation tube is communicated with an inflation valve through the indicating balloon.
The beneficial effects of the technical scheme are as follows:
(1) the medical laryngeal mask has the advantages that the throat pipe and the connecting joint of the medical laryngeal mask are simply and conveniently connected by arranging the positioning device in the throat pipe and arranging the quick unlocking device on the connecting joint, the connecting joint and the throat pipe can be quickly mounted and dismounted, time is saved for operation, the positioning device arranged in the throat pipe can reliably and stably position the connecting joint, the situation that the connecting joint is easy to fall off from the throat pipe due to external acting force in the operation is avoided, and the reliability of the medical laryngeal mask is greatly improved;
(2) according to the medical laryngeal mask, the water drop cleaning device is arranged in the connecting joint, so that water drops adhered to the inner wall of the connecting joint in the outside air due to cold contact are discharged out of the connecting joint, the situation that more water drops are gathered and flow back to the trachea of a patient is avoided, and the safety and the reliability of the medical laryngeal mask are greatly improved;
(3) be provided with air flue and drainage way in this medical laryngeal mask choke respectively, the setting of drainage way has avoided causing the condition of patient's mistake to inhale because of the gastric juice refluence to take place, and accessible drainage way sealing device seals the drainage way when the doctor inserts the laryngeal mask into patient's larynx and carries out position control (laryngeal mask counterpoint), it is isolated with the outside air to make it, external bacterium has been avoided, impurity is to the pollution of drainage way, be equipped with the drainage valve in putting a cylinder section of thick bamboo and the drainage device with drainage device insertion afterwards, make this drainage valve open when patient's gastric juice refluence, this drainage valve is in the closed condition under the patient normal condition, can discharge the refluence liquid smoothly when can ensureing patient's gastric juice refluence, also can realize the sealed effect to the drainage way when being in normal condition.
Drawings
FIG. 1 is a schematic front view of the overall structure of the present invention;
FIG. 2 is a schematic view of another aspect of the structure of the present invention;
FIG. 3 is a bottom view of the overall structure of the present invention;
FIG. 4 is a schematic view of the connecting tube of the present invention separated from the cylindrical barrel;
FIG. 5 is a schematic view of a partial structure of the connecting tube of the present invention after being separated from the cylindrical barrel;
FIG. 6 is a partial cross-sectional view of the connecting tube of the present invention;
FIG. 7 is a partially cut-away view of the connection tube showing the fitting relationship between the annular ring and the inner wall of the connection tube;
FIG. 8 is a schematic view of several arcuate squeegees of the present invention in operation;
FIG. 9 is a schematic illustration of the invention with several arcuate squeegees inoperative;
FIG. 10 is a schematic view of the relationship between the first ring, the second ring, and the plurality of arc scrapers of the present invention;
FIG. 11 is a schematic structural view of the positioning device of the present invention after positioning the connecting pipe;
FIG. 12 is a structural diagram of a state of the unlocking device for unlocking the positioning device according to the present invention;
FIG. 13 is a schematic view showing the fitting relationship between the connecting tube, the external gear plate, the internal gear ring and the present invention;
FIG. 14 is a schematic view of the internal structure of the throat and the cylinder with partial cross-sections;
FIG. 15 is an enlarged view of the structure at A of the present invention;
FIG. 16 is a schematic view of a drainage tube being sealed by the drainage channel sealing device of the present invention;
FIG. 17 is a schematic view of the drainage tube communicating with the outside according to the drainage channel sealing apparatus of the present invention;
FIG. 18 is a schematic view of the internal structure of a cylindrical barrel of the present invention, partially in section;
FIG. 19 is a schematic cross-sectional view of a rectangular chamber according to the present invention;
FIG. 20 is a schematic top view of a rectangular chamber of the present invention with a cut-away internal structure;
FIG. 21 is a schematic view showing the connection relationship between the connecting tube and the transferring chamber according to the present invention;
FIG. 22 is a schematic view of the invention with the arcuate squeegees separated from the annular ring.
In the figure: the device comprises a throat pipe 1, a cuff 2, an inflation pipe 3, a cylindrical barrel 4, an air flue 5, a drainage channel 6, a connecting pipe 7, a transfer cavity 8, an annular ring 9, an arc-shaped scraper 10, a drainage valve 11, an air supply hose 12, a first circular ring 13, a second circular ring 14, a U-shaped slide block 15, a rectangular slideway 16, a first rectangular slide rail 17, a second rectangular slide rail 18, a connecting rod 19, an internal thread barrel 20, a driving screw 21, a motor 22, a rectangular block 23, a return spring 24, a third circular ring 25, a thin pipe 26, a fourth circular ring 27, an annular cavity 28, a fifth circular ring 29, a positioning inclined block 30, a telescopic spring 31, a rectangular sliding groove 32, an abutting ring 33, an abutting spring 34, a mounting ring 35, a first circular hole 36, a second circular hole 37, an external tooth plate 38, a third circular hole 39, a gear 40, an internal gear 41, a drainage pipe 42, a drainage hose 43, a rectangular cavity 44, a sealing plate 45, a one-way bearing 46, a baffle 47 and a torsion spring 48, an indicating balloon 49, an inflation valve 50, a rotating shaft 51, an annular groove 52 and a semicircular hole 53.
Detailed Description
The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1 to 22. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
When the medical laryngeal mask is used, the airway 5 and the drainage channel 6 are respectively arranged, a reliable and safe artificial respiration channel can be quickly established for a patient through the airway 5, so that smooth operation is guaranteed, the airway 5 is communicated with a cavity defined by the cuff 2, the drainage channel 6 penetrates through the cuff 2, an opening of the drainage channel is positioned at the front end of the cuff 2 (shown in a figure 3), the situation of gastric juice reflux can occur when no gastric tube exists because the laryngeal mask provides good airway 5 sealing but a suction peak pressure (PIP) exceeds the laryngeal mask sealing pressure, and the gastric juice reflux can be caused by gastric juice aeration, and at the moment, the arrangement of the drainage channel 6 enables the reflux liquid to be timely discharged out of a body when the gastric juice reflux occurs to the patient, so that the situation of mistaken suction of the reflux liquid is avoided;
in specific use, air in the cuff 2 is firstly pumped out by a syringe through the inflation tube 3, so that the cuff 2 becomes flat, which can easily pass through the dorsum of the tongue to the back of the epiglottis, we want to lubricate the back of the laryngeal mask cuff 2 thoroughly before intubation, but avoid using too much lubricant at the bottom of the cuff 2, avoid the patient inhaling the lubricant which can cause coughing or obstruction, when the doctor puts the laryngeal mask in place, the cuff 2 is inflated through the inflation tube 3 at the moment for providing better air tightness, after the above preparation work is completed, the laryngeal mask is connected with the respirator and the respirator sends air into the airway 5 of the patient through the throat 1, when the patient inhales, air enters the patient body through the opened inspiration valve, when the patient exhales, the expiration valve is opened, and meanwhile, the inspiration valve is closed, so that the gas exhaled by the patient is discharged;
when the device is used specifically, a doctor firstly inserts the medical laryngeal mask into the oral cavity of a patient and finally makes the medical laryngeal mask well aligned (at the moment, the drainage channel 6 corresponds to the esophagus of the patient, and the airway 5 corresponds to the trachea of the patient), better when the doctor inserts the laryngeal mask into the oral cavity of the patient to perform alignment, the drainage channel 6 can be sealed by the sealing device of the drainage channel 6, so that the drainage channel 6 is effectively isolated from outside air, bacteria and impurities in the outside air can be prevented from entering the esophagus of the patient through the drainage channel 6 during the alignment of the laryngeal mask, infection is caused to the patient, when the laryngeal mask is well aligned, the connecting pipe 7 is inserted into the cylindrical barrel 4, the connecting pipe 7 which is inserted into the cylindrical barrel 4 and is matched with the airway 5 is effectively positioned by the positioning device arranged in the cylindrical barrel 4, the connecting pipe 7 and the airway 5 can be quickly connected and stably and comparatively communicated by the positioning device, the effect of supplying air to the patient is achieved, the time before the operation is saved, meanwhile, due to the fact that the positioning device positions the connecting pipe 7, the connecting pipe 7 cannot be separated from the air passage 5 due to mistaken collision in the operation process, the reliability of the device is greatly improved, when the operation is finished, the positioning device can be unlocked quickly through the unlocking device arranged on the connecting pipe 7, the connecting pipe 7 can be separated from the air passage 5 quickly, and the workload of a doctor after the operation is also saved;
in the scheme, the throat pipe 1 is a soft pipe and is positioned in an air passage 5 and an oral cavity of a patient in actual use, the cylindrical barrel 4 is a hard barrel and is positioned outside the oral cavity of the patient, vapor is inevitably generated when the patient exhales and is discharged outwards along with the exhaled gas through the air passage 5 arranged in the throat pipe 1, the temperature of the throat pipe 1 positioned in the patient body is kept close to the body temperature of the patient through the connecting pipe 7, but the cylindrical barrel 4 and the connecting pipe 7 are positioned outside the patient body, when the vapor passes through the connecting pipe 7 along with the exhaled gas, the vapor is precooled to be condensed into small water drops and is adhered to the inner wall of the connecting pipe 7, if the small water drops formed by condensation are not cleaned in time, the small water drops are caused to flow back into the air passage 5 of the patient, hidden dangers are caused to the life and the safety of the patient, and preferably, a humidity sensor is fixed in the connecting pipe 7, and the humidity sensor is electrically connected with the microcontroller, when in an initial state, the annular ring 9 is positioned in the connecting pipe 7 and is close to one end of the throat pipe 1 (shown in the attached figure 7), the annular ring 9 and the inner wall of the connecting pipe 7 are arranged at intervals (a certain interval and a gap are left between the annular ring 9 and the inner wall of the connecting pipe 7), when more water drops are gathered in the connecting pipe 7, the air humidity in the connecting pipe 7 is increased (a better breathing air humidity range which is in accordance with the human body is set), when the air humidity in the connecting pipe 7 exceeds the range, the humidity sensor sends a signal to the microcontroller, so that the microcontroller controls the driving device to drive the annular ring 9 to do reciprocating circular motion in the connecting pipe 7, the arc-shaped ring is connected with a plurality of arc-shaped scraping plates 10 in a sliding way along the diameter direction of the arc-shaped ring, and the arc-shaped scraping plates 10 are connected with the annular ring 9 through the connecting device, the connecting device satisfies: however, when the microcontroller controls the driving device to drive the annular ring 9 to move from the end close to the throat pipe 1 to the end close to the transit cavity 8 in the connecting pipe 7, the plurality of scraping plates cling to the inner wall of the connecting pipe 7 under the action of the connecting device (refer to fig. 8, at this time, the plurality of arc-shaped scraping plates 10 slide outwards along the diameter direction of the annular ring 9 and enable the outer circular surfaces of the arc-shaped scraping plates 10 to cling to the inner wall of the connecting pipe 7), the small water drops adhered to the inner wall of the connecting pipe 7 are scraped away and scraped into the transit cavity 8 communicated with the connecting pipe 7 along with the movement of the annular ring 9 (refer to fig. 21, a drain valve is arranged at the bottom in the transit cavity 8 and the water scraped into the transit cavity 8 is discharged outwards through the drain valve), then the annular ring 9 moves from the end close to the transit cavity 8 to the end close to the throat pipe 1 under the drive of the driving, the plurality of arc-shaped scrapers 10 are separated from the inner wall of the connecting pipe 7 (as shown in figure 9, at this time, the plurality of arc-shaped scrapers 10 are inwards contracted along the diameter direction of the annular ring 9, at this time, the arc-shaped scrapers 10 are separated from the inner wall of the connecting pipe 7 and are contacted until the arc-shaped scrapers move to be close to one end of the rear hanger and move along the opposite direction again, the plurality of arc-shaped scrapers 10 are contacted with the inner wall of the connecting pipe 7 again under the control of the microcontroller to realize the effect of cleaning the small water drops adhered to the inner wall of the connecting pipe 7), the annular ring 9 is driven by the driving device to return to the position again from one end close to the throat pipe 1 for a reciprocating period, and then the reciprocating motion is repeated until the humidity sensor detects that the humidity content of air in the connecting pipe 7 is restored to the set normal range, and the microcontroller controls the driving device to stop working;
in this scheme transfer chamber 8 is connected with the breathing machine through air supply hose 12, and the breathing machine sends into the trachea of patient with the air through air supply hose 12, transfer chamber 8, connecting pipe 7, air flue 5 in, realizes ventilating to patient.
In use, the embodiment will be described in detail below with respect to how the arcuate scrapers 10 slidably connected in the annular ring 9 clean the inner wall of the connecting pipe 7; two first circular rings 13 and two second circular rings 14 which are arranged at intervals are fixedly connected together through U-shaped sliders 15 at two axial ends respectively (refer to the attached drawing 10), an annular ring 9 consisting of the first circular rings 13 and the second circular rings 14 is connected to the inner wall of the connecting pipe 7 through the two U-shaped sliders 15 in a sliding manner (refer to the attached drawing 7), as shown in the attached drawing 10, two first rectangular slide rails 17 are fixedly connected to the semicircular ring at one longitudinal side of the first circular rings 13 along the diameter direction of the semicircular ring, an arc-shaped scraper 10 is connected to the inside of each first rectangular slide rail 17 in a sliding manner through a connecting device, the arc-shaped scraper 10 connected to the inside of each first rectangular slide rail 17 in a sliding manner is matched with the side wall of the first circular ring 13, two second rectangular slide rails 18 are fixedly connected to the semicircular ring at one side of the second circular rings 14 far away from the first rectangular slide rails 17 along the diameter direction of the semicircular ring, and the inside of each second rectangular slide rail 18 is connected with the arc-shaped scraper 10 through a connecting device in a sliding manner, and the arc scrapers 10 connected in the second rectangular slide rail 18 are in sliding fit with the side wall of the second circular ring 14, when the arc scrapers 10 connected in the first rectangular slide rail 17 and the arc scrapers 10 connected in the second rectangular slide rail 18 are arranged at intervals (namely, when the arc scrapers 10 slide along the diameter direction of the circular ring 9 in the corresponding rectangular slide rail, the arc scrapers 10 do not interfere with each other), the contact part of the arc scrapers 10 and the inner wall of the connecting pipe 7 is arranged to be an inclined plane with a certain inclination angle (which is convenient for cleaning up the small water drops on the inner wall of the connecting pipe 7), in the scheme, the arc scrapers 10 are totally four, each arc scraper 10 is a quarter circular ring, when the four arc scrapers 10 are matched with each other and slide out of the circular ring 9 along the corresponding rectangular slide rail, the adhered water drops on the inner wall of the connecting pipe 7 can be basically cleaned.
This embodiment will be described in detail below with respect to how the drive means operates when in use; the first ring 13 and the second ring 14 are respectively and fixedly connected with a connecting rod 19 through the circle center position thereof, the central parts of the two connecting rods 19 are jointly and fixedly connected with an internal thread cylinder 20 (as shown in figure 10), the internal thread cylinder 20 is matched with a driving screw 21 (as shown in figure 7) which is rotatably arranged in the connecting pipe 7 through threads, the driving screw 21 is driven by a motor 22 (as shown in figure 21) which is fixed in the transfer cavity 8, the microcontroller controls the motor controller to enable the motor 22 to drive the driving screw 21 to rotate so as to drive the annular ring 9 to transversely and reciprocally slide in the connecting pipe 7 along the rectangular slideway 16, the microcontroller sends an instruction to the motor controller, the motor controller enables the motor 22 to work according to a set program (the motor controller is an integrated circuit which actively works to control the motor 22 to work according to set direction, speed, angle and response time), in the scheme, the motor can be a micro motor with small power and is powered by a battery fixed in the transfer cavity, because the required driving force does not need to be large.
Embodiment 4, on the basis of embodiment 3, the arc-shaped scrapers 10 are respectively slidably fitted in the corresponding rectangular slide rails through the rectangular blocks 23, the connecting device includes a return spring 24 fixedly connected with the rectangular blocks 23, the other end of the return spring 24 is fixedly connected to the corresponding side walls of the first rectangular slide rail 17 and the second rectangular slide rail 18 near one end of the internal thread cylinder 20, the rectangular blocks 23 are made of a material easily attracted by a magnet, electromagnets are fixed on the side walls of the first rectangular slide rail 17 and the second rectangular slide rail 18 near one end of the internal thread cylinder 20, a plurality of the electromagnets are connected in series in a voltage stabilizing circuit arranged on the annular ring 9, and the voltage stabilizing circuit is controlled by a microcontroller.
This embodiment will be described in detail below with respect to what the connection means is formed of and how it operates when in use; referring to fig. 22, the arc-shaped scrapers 10 are slidably connected to the corresponding rectangular slide rail through a rectangular block 23, the connecting device includes a return spring 24 fixedly connected to the rectangular block 23, and the other end of the return spring 24 is fixedly connected to the side wall of the corresponding rectangular slide rail near the end of the internal thread cylinder 20, in an initial state, the ring 9 is located at one end of the connecting pipe 7 near the throat pipe 1 and the plurality of arc-shaped scrapers 10 are tightly attached to the inner wall of the connecting pipe 7 under the elastic force of the return spring 24, and the voltage stabilizing circuit is in a disconnected state, the electromagnets fixed in the rectangular slide rail are de-energized, when the microcontroller controls the motor 22 to drive the ring 9 to move from the end near the throat pipe 1 to the end near the transit cavity 8, the arc-shaped scrapers 10 tightly attached to the inner wall of the connecting pipe 7 scrape away the small water drops adhered to the end near the transit cavity 8 and scrape the water drops into the transit cavity 8, at this time, under the control of the microcontroller, the motor 22 rotates reversely to drive the driving screw 21 to make the annular ring 9 move in the opposite direction, and at the same time, the microcontroller controls the voltage stabilizing circuit to be switched on (the microcontroller sends an instruction to the voltage stabilizing circuit breaker and makes the voltage stabilizing circuit breaker act, so that the voltage stabilizing circuit is switched on), at this time, the electromagnet is electrified to generate electromagnetic force, the electromagnet attracts the rectangular block 23 which is slidably connected in the rectangular slide rail to make the arc-shaped scraper 10 slide in the direction close to the internal thread cylinder 20 along the rectangular slide rail corresponding to the electromagnet (at this time, the rectangular block 23 compresses the return spring 24), so as to realize the separation of the arc-shaped scraper 10 and the inner wall of the connecting pipe 7, when the motor 22 drives the annular ring 9 to move to the end close to the throat pipe 1, the microcontroller controls the motor 22 to rotate reversely to make the motor 22 drive the annular ring 9 to move in the direction of the transit chamber 8 again, and at the same time, the microcontroller sends an instruction to the voltage stabilizing circuit breaker, the action of the electric iron is enabled, the voltage stabilizing circuit is disconnected, the electric iron is powered off, and the arc-shaped scrapers 10 are tightly attached to the inner wall of the connecting pipe 7 again under the action of the elastic force of the return spring 24 to clean the inner wall of the connecting pipe 7.
When the embodiment is used, the following detailed description will be made about how the positioning means and the unlocking means work; referring to fig. 11 and 12, fig. 11 is a state diagram of the positioning device positioning the connection tube 7 in the cylinder 4, when in specific use, we insert the connection tube 7 into the cylinder 4 (refer to fig. 4), the third ring 25 fixedly connected to the thin tube 26 first contacts with the inclined positioning block 30 vertically slidably connected to the cylinder 4, we set the two inclined positioning blocks 30 in the initial state under the elastic force of the expansion spring 31 and set one end of the inclined surface to be placed in the air passage 5, when the third ring 25 contacts with the inclined positioning block 30, the two inclined positioning blocks 30 are pressed by the interaction force between the inclined surfaces and the two inclined positioning blocks 30 are withdrawn from the air passage 5 (at this time, the expansion spring 31 is pressed to be in the compressed state), so that the third ring 25 passes over the two inclined positioning blocks 30, and after the third ring 25 passes over the two inclined positioning blocks 30, the two inclined positioning blocks 30 extend into the air passage 5 again under the elastic force of the expansion spring 31 and abut against the outside of the thin tube 26 On the wall, at this time, the side of the positioning inclined block 30, which is not provided with the inclined surface, is abutted against the side wall of the third circular ring 25 facing the fourth circular ring 27, so that the positioning of the connecting pipe 7 is realized, and the connecting pipe 7 cannot be separated from the air passage 5 when being subjected to external acting force;
when the connecting pipe 7 needs to be separated from the air passage 5, we push the connecting pipe 7 inwards continuously at this time and the fourth ring 27 connected to the thin pipe 26 in a sliding manner touches the two positioning sloping blocks 30 and presses the two positioning sloping blocks 30 through the interaction force between the sloping surfaces, so that the two positioning sloping blocks 30 are withdrawn from the air passage 5 again, so that the fourth ring 27 crosses the two positioning sloping blocks 30, because the fourth ring 27 is connected to the thin pipe 26 in a sliding manner transversely, when the fourth ring 27 touches the sloping surfaces of the positioning sloping blocks 30, the fourth ring 27 slides along the thin pipe 26 due to the resistance of the positioning sloping blocks 30, so that the fourth ring 27 collides with the fifth ring 29 fixed on the thin pipe 26, at this time, the fourth ring 27 moves forwards along with the connecting pipe 7 continuously so as to extrude the positioning sloping blocks 30 from the air passage 5, and we pull the connecting pipe 7 outwards in the opposite direction after the fourth ring 27 crosses the two positioning sloping blocks 30, the side of the fourth ring 27 facing the fifth ring 29 first touches a side wall of the positioning inclined block 30 which is not provided with an inclined surface, at this time, the side of the fourth ring 27 facing the third ring 25 slides into the annular cavity 28 arranged in the third ring 25 (as shown in fig. 12), at this time, the connecting pipe 7 is continuously pulled outwards, as the fourth ring 27 slides into the annular cavity 28 in the third ring 25, at this time, the fourth ring 27 moves outwards along with the connecting pipe 7 and presses the positioning inclined block 30 again through the inclined surface arranged at the side thereof facing the fifth ring 29, and the positioning inclined block 30 is withdrawn from the air passage 5 again, so that the fourth ring 27 sliding into the annular cavity 28 and integrated with the third ring 25 passes over the two positioning inclined blocks 30 together;
referring to fig. 6, preferably, both sides of the fourth ring 27 are inclined and the middle portion is flat, so that when the fourth ring 27 slides into the annular cavity 28 in the third ring 25 and during the process of passing over the positioning inclined block 30, the bottom of the positioning inclined block 30 is disengaged from the inclined surface of the fourth ring 27 facing the fifth ring 29, the bottom of the positioning inclined block 30 abuts against the flat surface of the middle portion of the fourth ring 27, and with the outward movement of the connecting pipe 7, the positioning inclined block 30 smoothly passes over the matching portion of the fourth ring 27 and the third ring 25, (when the positioning is performed, the diameter of the flat portion of the fourth ring 27 is slightly larger than that of the third ring 25), so that the positioning inclined block 30 is better passed over the positioning inclined block 30, and when the positioning is performed, the bottom of the positioning inclined block 30 is arranged to be an arc-shaped surface close to the third ring 25, so that when the connecting tube 7 is pulled outwards in the position shown in fig. 12, the fourth ring 27 can easily squeeze the positioning ramp 30 and withdraw it from the air duct 5, and finally the effect of passing over the positioning ramp 30 is achieved.
In this embodiment, preferably, when we slide the abutting ring 33 in the cylinder 4 laterally and the abutting ring 33 is in the initial state, under the elastic force of the abutting spring 34, one side wall of the abutting ring 33 facing the positioning inclined block 30 abuts against the positioning inclined block 30, when we insert the connecting tube 7 into the cylinder 4 and the third ring 25 just crosses the positioning inclined block 30, one side of the third ring 25 facing the abutting ring 33 abuts against the abutting ring 33 and the two positioning inclined blocks 30 abut against the thin tube 26 (as shown in fig. 11), at this time, the abutting spring 34 is in the compressed state and gives a force to the connecting tube 7 to the right through the third ring 25, and at this time, the connecting tube 7 is more stably limited to the current position under the action of the abutting ring 33 and the positioning inclined block 30.
In this embodiment, when in use, a first circular hole 36 and a second circular hole 37 are respectively arranged on one side of the cylindrical barrel 4 away from the throat pipe 1 (as shown in fig. 4), the connecting pipe 7 is inserted into the cylindrical barrel 4 through the first circular hole 36, and the cylindrical barrel 4 is always in a communication state with the outside through the first circular hole 36, referring to fig. 14, a drainage pipe 42 communicated with the drainage channel 6 is fixedly arranged in the cylindrical barrel 4, and the other end of the drainage pipe 42 is abutted against the external toothed plate 38, the external toothed plate 38 is rotatably arranged in the cylinder and is engaged with an internal gear 41 rotatably arranged on the cylindrical barrel 4 through a gear 40 rotatably arranged in the cylindrical barrel 4, referring to fig. 13 and 17, annular grooves 52 rotatably arranged with the internal gear 41 and the external toothed plate 38 are respectively arranged in the cylindrical barrel 4, the external toothed plate 38 and the internal gear 41 are respectively rotatably arranged in the annular grooves 52 corresponding thereto, when the doctor aligns and adjusts the laryngeal mask, the outer toothed plate 38 seals the second circular hole 37 arranged on the cylindrical barrel 4 (as shown in fig. 16), so that bacteria and impurities in the outside air can be prevented from entering the drainage channel 6 through the drainage tube 42 to cause pollution when the doctor adjusts the position of the laryngeal mask, when the stomach of the patient inflates and generates backflow liquid, the inner gear ring 41 is rotated, the outer toothed plate 38 is driven to rotate through the gear 40, so that the outer toothed plate 38 rotates to the state shown in fig. 17, the third circular hole 39 arranged on the outer toothed plate 38 corresponds to the second circular hole 37 arranged on the cylindrical barrel 4, the drainage tube 42 is communicated with the outside through the third circular hole 39 and the second circular hole 37, at this time, the drainage device is inserted into the drainage tube 42 through the second circular hole 37 and the third circular hole 39 and further extends inwards to be inserted into the esophagus of the patient through the drainage channel 6, discharge the liquid that flows back that patient's inflation produced because of the stomach outside, it is worth noting that no matter how we rotate ring gear 41 and make it rotate through gear 40 drive outer toothed plate 38 and then will set up the second round hole 37 on cylinder 4 and seal up, outer toothed plate 38 can not hinder the connection cooperation of connecting pipe 7 with the air flue, refer to fig. 13, 16, 17 and show, we have offered semicircular hole 53 on outer toothed plate 38 and are used for cooperating with connecting pipe 7, make no matter when outer toothed plate 38 seals up second round hole 37 or opens, outer toothed plate 38 can not touch connecting pipe 7.
When the embodiment is used, because the patient has large uncertain shape when the stomach flatulence occurs, at this time, in order to avoid the situation that the reflux liquid cannot be discharged out of the body and is easy to cause the aspiration of the reflux liquid when the stomach juice is extruded outwards through the esophagus due to the sudden stomach flatulence of the patient, we need to insert the drainage device into the drainage channel 6 in advance and communicate with the esophagus of the patient, the situation of gastric inflation occurs when the peak suction pressure (PIP) of the patient exceeds the sealing pressure of the laryngeal mask, the gastric juice is caused to flow back by the gastric inflation, at this time, the reflux liquid in the stomach is sprayed outwards along the esophagus under the action of the gas pressure of the stomach and is discharged into the waste liquid collecting device through the drainage hose 43 inserted into the drainage channel 6 (when the diameter of the drainage hose 43 is slightly smaller than the inner diameter of the drainage channel 6, the inner diameters of the drainage channel 6 and the drainage tube 42 are kept the same), this drainage valve satisfies: this drainage valve opens when patient's gastric juice refluxes, can discharge stomach refluxes through this drainage valve to waste liquid collection device in, when patient is under normal condition (promptly, the stomach does not produce and aerifys also not have the phenomenon of gastric juice refluxes to take place) this drainage valve is in the closed condition, can in time discharge the refluxes when having compromise like this promptly when the gastric juice refluxes extraly extrasomatic, has also realized carrying out sealed effect to drainage way 6 when patient is in normal condition.
Embodiment 9, on the basis of embodiment 8, the drainage valve includes two sealing plates 45 rotatably installed in the rectangular cavity 44 through a rotating shaft 51, the upper and lower ends of the sealing plate 45 are rotatably installed in the one-way bearings 46 fixed in the rectangular cavity 44 through the rotating shaft, the rectangular cavity 44 is internally provided with a baffle 47 matched with the sealing plate 45, the sealing plate 45 is fixed with a torsion spring 48 coaxially installed with the rotating shaft 51, and one end of the torsion spring 48 is fixedly connected to the other end of the sealing plate 45 and fixedly connected to the baffle 47 corresponding thereto.
This embodiment, when used, will be described in detail below with respect to how the drain valve operates; referring to fig. 19, when the stomach reflux liquid is in the condition of stomach flatulence, the gastric reflux liquid enters the drainage hose 43 through the esophagus and enters the rectangular cavity 44 under the pressure of the gas inside the stomach, at this time, the reflux liquid pushes outwards and rotates the two sealing plates 45 installed in the rectangular cavity 44 under the action of the gas pressure, so that the two sealing plates 45 rotate around the respective rotating shafts 51 and the effect of opening the sealing plates 45 is achieved (the upper and lower ends of the sealing plates 45 are respectively installed in the one-way bearings 46 fixedly installed in the rectangular cavity 44 through the rotating shafts 51 in a rotating manner);
in the initial state, the torsion spring 48 coaxially disposed with the rotating shaft 51 is fixedly connected to the sealing plate 45, and the other end of the torsion spring 48 is fixedly connected to the baffle 47 (as shown in fig. 20, and the torsion spring 48 with smaller torsion is selected when we set up, so that the backflow liquid can easily push the two sealing plates 45 away under the action of stomach flatulence through the drainage hose 43), we set that when the backflow liquid pushes the sealing plates 45 to open, the rotating shaft 51 cannot drive the corresponding one-way bearing 46 to rotate and make it idle in the one-way bearing 46 (in order to make the two sealing plates 45 quickly open when the backflow liquid passes through), when the backflow liquid is partially discharged out of the body (at this time, the doctor also adjusts the peak suction pressure in time to avoid the stomach continuing flatulence), the two air pressure sealing plates 45 in the esophagus of the patient start to rotate around the respective rotating shafts 51 in opposite directions under the action of the torsion spring 48, at this time, the rotating shaft 51 drives the one-way bearing 46 to rotate (when the device is set, the one-way bearing 46 is rotatably mounted in the bearing seat fixed in the rectangular cavity 44, and the friction damping sheet is arranged at the position where the one-way bearing 46 is rotatably matched with the bearing seat), when the sealing plate 45 rotates in the opposite direction, the rotating shaft 51 drives the one-way bearing 46 to rotate, and further drives the one-way bearing 46 to rotate in the bearing seat, because the friction damping sheet is fixedly arranged between the one-way bearing 46 and the bearing seat, the two sealing plates 45 are slowly closed under the action of the torsion spring 48 (the rotating shaft 51 drives the one-way bearing 46 to rotate and generate friction resistance), so that the two sealing plates 45 are slowly closed to enable the residual stomach reflux liquid which is not discharged to be discharged out of the body under the condition that the pressure in the esophagus is reduced, the one-way bearing 46 and the friction damping sheet are arranged to increase the time for the reflux liquid to be discharged out, thereby better discharging all the return fluid out of the body.
Example 10, on the basis of example 1, the inflation tube 3 is communicated with an inflation valve 50 through an indicating balloon 49.
When the cuff is used, the inflation valve 50 is used for inflating the inflation tube 3 so as to enable the cuff 2 to be filled with gas to realize the effect of being tightly attached to the airway 5 of a patient, the indicating balloon 49 can indicate the inflation or flat deflation of the cuff 2, and the judgment of the inflation condition of the cuff 2 in the patient body by a doctor is facilitated.
The medical laryngeal mask has the advantages that the throat 1 and the connecting joint of the medical laryngeal mask are simply and conveniently connected through the positioning device arranged in the throat 1 and the quick unlocking device arranged on the connecting joint, the connecting joint and the throat 1 can be quickly mounted and dismounted, time is saved for operation, the positioning device arranged in the throat 1 can reliably and stably position the connecting joint, the situation that the connecting joint is easy to fall off from the throat 1 due to external acting force in the operation is avoided, and the reliability of the medical laryngeal mask is greatly improved;
according to the medical laryngeal mask, the water drop cleaning device is arranged in the connecting joint, so that water drops adhered to the inner wall of the connecting joint in the outside air due to cold contact are discharged out of the connecting joint, the situation that more water drops are gathered and flow back to the trachea of a patient is avoided, and the safety and the reliability of the medical laryngeal mask are greatly improved;
be provided with air flue 5 and drainage way 6 in this medical laryngeal mask choke 1 respectively, the condition that the setting of drainage way 6 has avoided causing patient's mistake to inhale because of the gastric juice refluence takes place, and accessible drainage way 6 sealing device seals drainage way 6 when the doctor inserts the laryngeal mask into patient's larynx and carries out position control (laryngeal mask counterpoint), make it isolated with outside air, external bacterium has been avoided, impurity is to the pollution of drainage way 6, be equipped with the drainage valve in inserting drainage device 4 in putting a cylinder section of thick bamboo afterwards and the drainage device, make this drainage valve open when patient's gastric juice refluence, this drainage valve is in the closed condition under patient's normal condition, can discharge the refluence liquid smoothly when can ensureing patient's gastric juice refluence promptly, also can realize the sealed effect to drainage way 6 when being in normal condition.
The above description is only for the purpose of illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.
Claims (10)
1. A medical laryngeal mask comprises a throat tube (1), wherein a cuff (2) is connected to an opening at the front section of the throat tube (1), the cuff (2) is communicated with an inflation tube (3), and the laryngeal mask is characterized in that the other end of the throat tube (1) is communicated with a cylindrical tube (4), air passages (5) and drainage channels (6) are longitudinally arranged in the throat tube (1) at intervals, the air passages (5) and the drainage channels (6) are respectively communicated with the cylindrical tube (4), a drainage channel sealing device is arranged at one end, far away from the throat tube (1), of the cylindrical tube (4), a connecting tube (7) matched with the air passages (5) is axially and slidably connected in the cylindrical tube (4), a positioning device is arranged in the cylindrical tube (4), an unlocking device is arranged at the sliding fit position of the connecting tube (7) and the cylindrical tube (4), one end, extending out of the cylindrical tube (4), of the connecting tube (7) penetrates through the side wall of the cylindrical tube (4) and is communicated with a transfer cavity (8), the connecting pipe (7) is internally provided with an annular ring (9) in an axial sliding manner, the annular ring (9) is driven by a driving device arranged in the connecting pipe (7), the annular ring (9) is internally provided with a plurality of arc-shaped scrapers (10) along the diameter direction thereof in a sliding manner, the connecting pipe (7) is internally provided with a humidity sensor and a humidity sensor electrically connected with a microcontroller, when the humidity in the connecting pipe (7) is too large, the microcontroller controls the driving device to drive the annular ring (9) to reciprocate in the connecting pipe (7), the arc-shaped scrapers (10) and the annular ring (9) are connected through a connecting device, and the microcontroller controls the connecting device to make: when microcontroller control drive arrangement drive ring circle (9) is removed by choke (1) one end to transfer chamber (8) in connecting pipe (7), hug closely in connecting pipe (7) inner wall in a plurality of arc scraper blades (10), when drive arrangement drive ring circle (9) is removed by transfer chamber (8) to choke (1) one end in connecting pipe (7), a plurality of arc scraper blades (10) and connecting pipe (7) inner wall break away from, transfer chamber (8) bottom intercommunication has drain valve (11) and transfer chamber (8) to deviate from connecting pipe (7) one end intercommunication and has air supply hose (12).
2. The medical laryngeal mask according to claim 1, wherein the annular ring (9) comprises a first annular ring (13) and a second annular ring (14) which are arranged at an interval and coaxially, the first annular ring (13) and the second annular ring (14) are fixedly connected through a U-shaped sliding block (15), the two annular rings are axially and slidably connected to the inner wall of the connecting pipe (7) through the two U-shaped sliding blocks (15), a rectangular slideway (16) which is in sliding fit with the U-shaped sliding block (15) is arranged on the inner wall of the connecting pipe (7), two first rectangular sliding rails (17) are fixedly connected to the semicircular ring on one longitudinal side of the first annular ring (13) at intervals along the diameter direction of the first annular ring, the arc-shaped scraping plates (10) are in sliding fit with the corresponding first rectangular sliding rails (17), the two arc-shaped scraping plates (10) are in sliding fit with the first annular ring (13) and are arranged at intervals with the second annular ring (14), keep away from two first rectangle slide rails (17) one side semicircle on second ring (14) and follow its diameter direction interval fixedly connected with two second rectangle slide rails (18), arc scraper blade (10) sliding fit sets up for sliding fit and with first ring (13) interval between arc scraper blade (10) and second ring (14) in second rectangle slide rail (18) corresponding with it, two connecting device sets up in first rectangle slide rail (17), second rectangle slide rail (18).
3. The medical laryngeal mask of claim 2, wherein the drive means comprises: connecting rod (19), an internal thread section of thick bamboo (20), drive screw (21), motor (22), machine controller, its centre of a circle difference fixedly connected with connecting rod (19) and two connecting rod (19) central point are crossed to first ring (13), second ring (14) and put fixedly connected with internal thread section of thick bamboo (20), internal thread section of thick bamboo (20) have through the screw-thread fit rotate install in connecting pipe (7) and with connecting pipe (7) drive screw (21) that the axle center set up, drive screw (21) are by being fixed in motor (22) drive in transit chamber (8), machine controller electric connection is in microcontroller.
4. The medical laryngeal mask according to claim 3, wherein the arc-shaped scrapers (10) are respectively in sliding fit in corresponding rectangular sliding rails through rectangular blocks (23), the connecting device comprises return springs (24) fixedly connected with the rectangular blocks (23), the other ends of the return springs (24) are fixedly connected to corresponding side walls of one ends, close to the internally threaded barrel (20), of the first rectangular sliding rail (17) and the second rectangular sliding rail (18), the rectangular blocks (23) are made of materials easy to be attracted by magnets, electromagnets are fixed to side walls of one ends, close to the internally threaded barrel (20), of the first rectangular sliding rail (17) and the second rectangular sliding rail (18), the electromagnets are connected in series in a voltage stabilizing loop arranged on the annular ring (9), and the voltage stabilizing loop is controlled by a microcontroller.
5. The medical laryngeal mask according to claim 1, wherein the connecting tube (7) is arranged in the cylinder (4) with one end fixedly connected with a thin tube (26) coaxially and the thin tube (26) is far away from the connecting tube (7) with one end fixedly connected with a third ring (25) coaxially, and the unlocking means comprises: tubule (26), fourth ring (27), third ring (25), annular cavity (28), fifth ring (29), axial sliding connection has fourth ring (27) on connecting pipe (7), fourth ring (27) circumference both sides all set up to inclined plane and third ring (25) to be provided with towards fourth ring (27) one side with fourth ring (27) matched with annular cavity (28), third ring (25) deviate from fourth ring (27) one side and set up to the inclined plane, fourth ring (27) deviate from on tubule (26) of third ring (25) one side inherent fifth ring (29) and fifth ring (29) set up to the inclined plane towards fourth ring (27) one side, positioner includes that vertical interval sets up in cylinder (4) and vertical sliding fit's location sloping block (30), between location sloping block (30) and cylinder (4) through expanding spring (31) connection and location sloping block (30) inclined plane towards third ring (27), its slope is connected through expanding spring (31) between location sloping block (30) and cylinder (4) Three circular rings (25) are arranged.
6. The medical laryngeal mask according to claim 5, wherein the cylindrical tube (4) is provided at its upper and lower ends with rectangular sliding grooves (32) extending axially, and the rectangular sliding grooves (32) are slidably connected with abutting rings (33), one side of the abutting ring (33) away from the connecting tube (7) is connected with a mounting ring (35) fixed in the cylindrical tube (4) through an abutting spring (34), and the abutting ring (33) abuts against the positioning oblique block (30) under the action of the abutting spring (34).
7. The medical laryngeal mask according to claim 1, characterised in that a first circular hole (36) and a second circular hole (37) which are in sliding fit with the connecting tube (7) are arranged at an interval along the radial direction of one end of the cylinder (4) far away from the throat (1), the sealing device of the drainage channel (6) comprises an outer toothed plate (38) rotatably arranged in the cylindrical barrel (4), a third round hole (39) is arranged on the outer toothed plate (38), the upper end and the lower end of the external toothed plate (38) are respectively engaged with a gear (40) rotatably arranged in the cylindrical barrel (4), the two gears (40) are jointly engaged with an inner gear ring (41) rotatably arranged on the outer wall of the cylindrical barrel (4), the outer toothed plate (38) and the cylindrical barrel (4) are far away from the side wall of one end of the throat pipe (1) in a sliding fit mode, a drainage pipe (42) communicated with the drainage channel (6) is arranged in the cylindrical barrel (4), and one end, facing the outer toothed plate (38), of the drainage pipe (42) is in sliding fit with the outer toothed plate (38).
8. The medical laryngeal mask according to claim 7, wherein the drainage channel (6) is fitted with a drainage device, the drainage device comprises a drainage hose (43) matched with the drainage channel (6), the drainage hose (43) is arranged at one end outside the cylindrical barrel (4) and is communicated with a rectangular cavity (44), a drainage valve is arranged in the rectangular cavity (44), and the drainage valve meets the following requirements: when the gastric juice of the patient flows back, the drainage valve is opened, the drainage valve is in a closed state under a normal state, and the other end of the rectangular cavity (44) is communicated with a waste liquid collecting device.
9. The medical laryngeal mask according to claim 8, wherein the drainage valve comprises two sealing plates (45) rotatably mounted in a rectangular cavity (44) through a rotating shaft (51), the upper end and the lower end of each sealing plate (45) are rotatably mounted in a one-way bearing (46) fixed in the rectangular cavity (44) through the rotating shaft respectively, baffles (47) matched with the sealing plates (45) are arranged in the rectangular cavity (44) respectively, a torsion spring (48) coaxially arranged with the rotating shaft (51) is fixed on each sealing plate (45), one end of each torsion spring (48) is fixedly connected to each sealing plate (45), and the other end of each torsion spring (48) is fixedly connected to the corresponding baffle (47).
10. The medical laryngeal mask according to claim 1, characterised in that the inflation tube (3) is connected with an inflation valve (50) via an indicator balloon (49).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910652428.7A CN110251788B (en) | 2019-07-19 | 2019-07-19 | Medical laryngeal mask |
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| CN201910652428.7A CN110251788B (en) | 2019-07-19 | 2019-07-19 | Medical laryngeal mask |
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| CN110251788A CN110251788A (en) | 2019-09-20 |
| CN110251788B true CN110251788B (en) | 2021-08-24 |
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| CN201910652428.7A Active CN110251788B (en) | 2019-07-19 | 2019-07-19 | Medical laryngeal mask |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575592A (en) * | 2019-09-25 | 2019-12-17 | 夏敏 | Laryngeal mask with monitoring of perilaryngeal muscle relaxation and monitoring of backflow |
| CN111407994B (en) * | 2020-03-31 | 2022-07-29 | 北京大学第三医院（北京大学第三临床医学院） | Laryngeal mask with telescopic tracheal catheter |
| CN111529878B (en) * | 2020-06-16 | 2023-04-14 | 河南亚都实业有限公司 | Mask for oxygen inhalation |
| CN114705002B (en) * | 2022-06-08 | 2022-09-16 | 浙江力夫传感技术有限公司 | Auxiliary device for humidity sensor |
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| CN107823770A (en) * | 2017-10-27 | 2018-03-23 | 苏玉强 | A kind of anaesthetic mask |
| CN208823687U (en) * | 2018-03-26 | 2019-05-07 | 赵娟 | A kind of tracheal tube |
| CN109513083A (en) * | 2018-12-18 | 2019-03-26 | 北京大学第三医院 | A kind of tracheae tube core and automatic endotracheal intubation system |
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