Laryngeal mask is inflated in multifunctional integrated molding certainly
The present invention relates to a kind of laryngeal mask airway devices, and in particular to laryngeal mask is inflated in the multifunctional integrated molding of one kind certainly.
Intubating laryngeal mask airway device is to establishing the useful widely known device of air flue in unalive patient.The U.S. is special
Sharp No.4,509,514 is one of a variety of applications for describing intubating laryngeal mask airway device.Such device is used for many years,
And provide the substitution utensil to older, even widely known endotracheal tube.Compared with endotracheal tube, by laryngeal mask airway
Road device is inserted into the patient, and to establish, air flue is opposite to be easier to.Also, intubating laryngeal mask airway device is " kind " device, because
Even if it is inserted improperly, also still tend to establish air flue.Therefore, intubating laryngeal mask airway device is often thought of as " lifesaving " dress
It sets.Also, smaller operation only can be carried out to patient's head, neck, jaw and be inserted into intubating laryngeal mask airway device.In turn, intubating laryngeal mask airway
Device provides the ventilation to the lung of patient, the sensitive liner without requiring contact tracheae, and the size allusion quotation for the air flue established
Type it is noticeably greater than the size for the air flue established with endotracheal tube.Also, intubating laryngeal mask airway device do not interfere cough degree with
Endotracheal tube is identical.Mainly due to these advantages, intubating laryngeal mask airway device has gradually been popularized in recent years.
United States Patent (USP) No.5,303,697 and 6,079,409, which is described, is referred to alternatively as " intubating laryngeal mask airway device "
The example of prior-art devices type.The cannula type device is useful to the insertion of endotracheal tube is facilitated.In the intubation
When formula intubating laryngeal mask airway device has been placed in patient's body, described device may act as the guidance of the endotracheal tube for being subsequently inserted into
Part.The mode of " blindmate " of endotracheal tube is facilitated what is commonly known as using intubating laryngeal mask airway device by this method.Only need patient head,
The smaller movement of neck and jaw can insert the intubating laryngeal mask airway device, and described device is located in the trouble by one
In person, so that it may hardly need the additional movement of patient and insert endotracheal tube.If this with do not have to intubating laryngeal mask airway
The larger movement of the head, neck and jaw of patient is required to form a sharp contrast when endotracheal tube is inserted in the assistance of device.
A kind of common version of intubating laryngeal mask airway device commercial marketization for many years, such as Cyprus
" Fastrach " of Laryngeal Mask Company manufacture.Fig. 1 shows the front side of prior art Fastrach device 100
Diagram.Fig. 2 shows the sectional views of the device 100 taken on the direction of arrow 1B-1B as shown in Figure 1.
Device 100 includes rigid steel airway tube 110, the part 130 silicone mask (silicone mask), 180 and of rigid steel handle
Inflation line (inflation line) 190.Handle 180 is connected to pneumatic duct 110 near the proximal end of pipe 112.Cover portion point 130 exists
The distal end 114 of pipe is connected to pneumatic duct 110.Cover portion point 130 includes dome shaped backplate 132 and inflatable cuff (cuff) 134.Cover
Part 130 also includes epiglottis elevator bar (elevator bar) 150.One end 152 of stick 150 is connected to backboard 132.The stick
150 other end 154 is " free floating ", or is not attached to any other part of described device.Stick 150 is effectively hinged
Partly rest part is covered to described.
In operation, cuff 134 is deflated, and then cover portion point is inserted into the pharynx of patient, while the gas by the mouth of patient
The proximal end 112 of deferent and handle 180 are retained in outside the mouth of patient.Handle 180 can be used for manipulating described device.Cuff 134 is then led to
Gas overcharging route 190 is inflated, and is open to form sealing with the glottis around patient.After the device 100 is so positioned, described
The distal openings 117 of device (shown in Fig. 1) are aligned with the glottis of patient opening, and described device is provided from pneumatic duct 110
Proximal end 112 extend to patient tracheae sealing air flue.When epiglottis elevator bar 150 is in rest home location, stick 150 is anti-
In the bowl-like shape that only epiglottis of patient falls into the cuff by inflating and backboard limits, to prevent epiglottis blocking described device from mentioning
The airway passage of confession.Fig. 3 shows the endotracheal tube 195 for being inserted through device 100.Gas is inserted into the distal end 196 of endotracheal tube 195
The proximal end 112 of deferent, then endotracheal tube 195 advances, and divides 130 until distal end 196 reaches cover portion, then passes through cover portion point 130.
Although place of working is very good always for existing laryngeal mask device, still have the disadvantages that
1, the cover of the laryngeal mask of various regions production both at home and abroad and tracheae are divided into two accessories at present, result in assembling process
In, each position of tracheae and cover, between Kong Yukong, between axis and axis, it is impossible to which absolutely concentricity causes doctor will
Endotracheal tube intert into when touched, and also increase the manufacturing difficulty and technique it is many and diverse, affect the appearance of product
And its quality.
2, the current gas tube of most laryngeal mask and the connection of cover both at home and abroad, are in cover external connection (such as Fig. 1
Inflation line 190).It is serious affect doctor and intert laryngeal mask to patient enter the difficulty in oral cavity, while also increasing patient's
The difficult pharynx degree of mostly one pipe in oral cavity.
3, for doctor both domestic and external after doing laryngeal mask to patient and interting the suitable position of entrance cavity, doctor looks for a note again at present
Emitter inflation enters in laryngeal mask cover (left hand keeps a firm hand on charge valve alignment syringe, and the right hand keeps a firm hand on syringe inflation, both hands operation).
After the completion of performing the operation, then after looking for the intracorporal gas of syringe holder cover to release again by doctor, finally laryngeal mask from patient
Oral cavity in take out, operate it is loaded down with trivial details, easily go wrong.
Therefore, above-mentioned three point defect has to be solved.
Summary of the invention
The technical problem to be solved by the present invention is propose a kind of insertion convenient for endotracheal tube, it is external without extra pipeline and
Laryngeal mask is inflated certainly convenient for the multifunctional integrated molding of inflation/deflation.
The technical solution that the present invention proposes to solve above-mentioned technical problem is: larynx is inflated in the multifunctional integrated molding of one kind certainly
Cover, including conduit and cover portion, the conduit extend to distal end from its proximal end, and the cover portion is connected to the far-end of the conduit,
The cover portion includes cover plate and inflatable cuff, and the inflatable cuff is used to be centered around the glottis opening of patient after inflation,
The end of the catheter proximal end is equipped with board, and the conduit is interior at least provided with mutually independent gas ducting and use
In air supply pipe inner tube air pipe passway through them；The gas ducting prolongs from the proximal end of the conduit to the distal end of conduit
It stretches, the proximal end of the gas ducting is stretched out from the board and is connected with air control valve in its end, below the air control valve
It is connected with pressure ball of supplying gas, the inflatable cuff that is distally connected to of the gas ducting is suitable for inflatable cuff inflation；The gas
Distal end of the tube passage from the proximal end of the conduit to conduit extends, and the proximal end of the air pipe passway is formed with the on the board
One socket, the distal end of the air pipe passway are communicated on the inside of the cover plate and form the directed cavity with predetermined angle；
The conduit and the cover portion are integrated injection molding.
Further, one and the gas ducting and air pipe passway also mutually independent drainage are additionally provided in the conduit
The cover portion front end is equipped with draining hole, and the drainage channel prolongs from the proximal end of the conduit to the distal end of the conduit
It stretches, the proximal end of the drainage channel is formed with the second socket, the distal end of the drainage channel and the drainage on the board
Mouth connection perforation.
Further, close to being equipped with hard bite-block pipe outside the air pipe passway at the board bottom surface.
Further, the forefront depression on the inside of the cover plate in the directed cavity is formed with collection phlegm chamber.
Further, the side of the board is connected with flexible fixing strap, and interval is formed with more on the flexible fixing strap
A strip jack, the other side of the board are formed with for the T connector fixed with strip jack cooperation.
Further, instruction sacculus is equipped on the gas ducting for being located at air control valve front.
Further, the section of the conduit is ellipse.
The beneficial effects of the present invention are:
From inflation laryngeal mask favorable sealing property, duration of ventilation is long, has to esophagus for multifunctional integrated molding in the present invention
The tolerant drainage of liquid in stomach function regulating, the variation of internal diameter be it is gradual, facilitate instrument to pass through and move.And energy when needing
Complete trachea cannula everything goes well with your work intubation through laryngeal mask, when insertion can any blind spys be inserted into, air bag is inflated to clinic after insertion
Ge standard requirements, insertion stomach tube merging laryngeal mask drainage lumens have unique air bag sputum collecting chamber, prevent sputum from backflowing accidentally and inhale, safety
Performance is high, smoothly attracts gastric juice out.
Detailed description of the invention
Multifunctional integrated molding of the invention is described further from inflation laryngeal mask with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram that conventional laryngeal mask air-breather is referred in background technique；
Fig. 2 is the cut-away view of 1B-1B in Fig. 1；
Fig. 3 is for showing how endotracheal tube passes through device in Fig. 1；
Fig. 4 is the schematic diagram of front three-dimensional structure that laryngeal mask is inflated in multifunctional integrated molding certainly in the present invention；
Fig. 5 is the back side dimensional structure diagram that laryngeal mask is inflated in multifunctional integrated molding certainly in the present invention；
Fig. 6 is the facing structure figure that laryngeal mask is inflated in multifunctional integrated molding certainly in Fig. 4；
Fig. 7 be A-A in Fig. 6 to structure cut-away view；
Fig. 8 is the top view structure chart at board；
Fig. 9 is the structure cut-away view of the B-B direction along Fig. 8.
According to Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, the multifunctional integrated molding in the present invention inflates laryngeal mask certainly,
Including conduit 200 and cover portion 300.Conduit 200 extends to distal end from its proximal end, and cover portion 300 is connected to the far-end of conduit 200,
Cover portion 300 includes cover plate 301 and inflatable cuff 302.Inflatable cuff 302 is after inflation for being centered around the glottis opening of patient.
The end of 200 proximal end of conduit is equipped with board 201.It is equipped with mutually independent gas ducting 202 in conduit 200 and uses
In air supply pipe inner tube (not shown) air pipe passway 203 (or central airway passage) through them.
For facilitate instrument be inserted into and eliminate it is potential rotation and constitute natural oral cavity stabilizer function, can be used as preferably
: the section of conduit 200 is oval.
Gas ducting 202 extends along the proximal end from conduit 200 to the distal end of conduit 200.The proximal end of gas ducting 202 from
It is stretched out at board 201 and is connected with air control valve 401 in its end, pressure ball 402 of supplying gas is connected with below air control valve 401.Control gas
The related utensil that valve 401 is referred to as blood pressure measurement air bag inflation to pressure ball 402 of supplying gas, doctor can with one-handed performance, or
The operation of both hands simplicity.The inflatable cuff 302 that is distally connected to of gas ducting 202 is suitable for the inflation of inflatable cuff 302.
Air pipe passway 203 extends from the proximal end of conduit 200 to the distal end of conduit 200, and the proximal end of air pipe passway 203 is in board
The first socket 204 is formed on 201, the distal end of air pipe passway 203, which is communicated to 301 inside of cover plate and is formed, has predetermined angle
Directed cavity 205.Endotracheal tube by the guiding role that first socket 204 enters into and through directed cavity 205 extend back to patient by
Gas position.In addition, can be used as preferred to prevent the unconscious unexpected occlusion of patient from the blocking of endotracheal tube being caused to press
It is: is equipped with hard bite-block pipe 208 outside the air pipe passway 203 close at 201 bottom surface of board, hard bite-block pipe 208 can
To be made by flat plastics or metal material cannot be stung by patient.In addition, the top of hard bite-block pipe 208 can connect and be fixed to
On the bottom surface of board 201.
Conduit 200 and cover portion 300 are integrated injection molding, and integrated injection molding, which is advantageous in that, avoids Kong Yukong, axis
Splicing with axis does not align, to help the smooth insertion of endotracheal tube.
It can be used as preferably: being additionally provided with one in conduit 200 with gas ducting 202 and air pipe passway 203 also mutually
Independent drainage channel 206.It is equipped with draining hole 303 in 300 front end of cover portion, drainage channel 206 is from the proximal end of conduit 200 to conduit
200 distal end extends, and the proximal end of drainage channel 206 is formed with the second socket 207, the distal end of drainage channel 206 on board 201
Perforation is connect with draining hole 303.Cooperate the second socket 207 that stomach secretion (such as gastric acid) can be effectively reduced by drainage device
Into the risk of tracheae.
It is inhaled to prevent sputum from backflowing accidentally, collection phlegm chamber can be formed in the forefront depression of directed cavity 205 in 301 inside of cover plate
For that can be connected with flexible fixing strap 500 in the side of board 201, be spaced shape on flexible fixing strap convenient for fixation
At there is multiple strip jacks, the other side of board 201 is formed with for the T connector 208 fixed with the cooperation of strip jack.
For instruction sacculus can be equipped on the gas ducting 202 for being located at 401 front of air control valve convenient for grasping inflated condition
Of the invention is not limited to the above embodiment, and the technical solution of above-mentioned each embodiment of the invention can be handed over each other
Fork combination form new technical solution, in addition it is all using equivalent replacement formed technical solution, all fall within the present invention claims guarantor
It protects in range.