CN207734429U - Laryngeal mask cover capsule - Google Patents

Abstract

Laryngeal mask cover capsule, it is connected to the gas tube of inflation/deflation is carried out to it, it is made of soft structures, the contour structures of the laryngeal mask cover capsule are bonded setting with human body bottleneck throat structure, the thickness of laryngeal mask cover capsule front end is thinner than the thickness at middle part, the width of laryngeal mask cover capsule front end is narrower than the width at middle part, the front end of the laryngeal mask cover capsule is exported equipped with tracheae, the tracheae outlet of the laryngeal mask cover capsule front end is an angularly disposed structure, reduce the thickness of cover capsule front end, the resistance of placing larynx cover is reduced simultaneously, it is turned down when preventing laryngeal mask from placing, and articulatio cricoary tenoidea will not be excessively oppressed in inflation, it can prevent laryngeal mask from rotating, laryngeal mask is set to be easily inserted, reduce the compressing to epiglottis, reduce the possibility of obstructing airway.

Description

Laryngeal mask cover capsule

Technical field

The utility model belongs to medical instruments field, is related to a kind of laryngeal mask cover capsule.

Background technology

Dispoable medical laryngeal mask product is mainly used for opening and sealing throat, is carrying out autonomous, auxiliary or control ventilation When, provide a gas passage in patient's body.In use, laryngeal mask is inserted into bottleneck throat, sealing is played after airbag aeration and is consolidated It is set for using.Dispoable medical laryngeal mask may be either that patient's autonomous respiration provides channel, and can implement positive airway pressure.

Since laryngeal mask appearance, maintains patient airway and ensure that the demand of patient airway safety is gas on a large amount of different glottises Road tool brings opportunity.Although in most cases can guarantee ventilation, they have bad sealing, original position rotation, displacement The problem of.

In actual clinical in use, laryngeal mask displacement causes air flue seal poor, vital sign (mainly blood oxygen saturation) Decline, gas can be filled with esophagus by continuous positive pressure ventilation, lead to tympanites, and gastric juice, which backflows, misses phenomena such as inhaling.It is just necessary at this time Carry out the position adjustment of laryngeal mask.In some operations, to avoid laryngeal mask from moving, it may be filled with excess air to cover is intracapsular, caused Since intracapsular pressure is excessively high or is unevenly distributed and causes compression to larynx week tissue, and become after being filled with excess air due to cover capsule It is bad to instead result in sealing for shape.

The structure of bottleneck throat is similar to a cone bucket, is contacted with throat inner wall after laryngeal mask, natural after human body is stimulated Laryngeal mask can outward be squeezed there are one the reaction to reject.The reason of causing laryngeal mask to shift, has as follows：

1. laryngeal mask structure design is unreasonable, it is not bonded with bottleneck throat physiological structure.

2. laryngeal mask type selecting is incorrect, mismatched with physiological structure；

3. induction and maintenance stage, laryngeal mask is placed in when depth of anesthesia is excessively shallow, there is swallowing reflex, or laryngospasm occurs；

4. anaesthetized in art it is unstable, it is restless；

5. position changes in art, especially head, neck；

6. special posture operates (such as prostrate, lateral position)；

7. particular procedure (laparoscopic surgery) leads to gastric retention table raising or the raised operation of airway resistance；

8. postoperative mobile patient (migration recovery room) or patient recovered reflection, patient under incomplete wake states It is restless.

Laryngeal mask on current market is divided into inflation laryngeal mask according to structure, exempts to inflate laryngeal mask.Exempt to inflate laryngeal mask cover scrotiform shape ruler Very little fixation, it is (more single to advise since individual dissection architectural difference is bigger than more prominent the problem of specification matching in Clinical Selection Lattice will cover more large-scale crowd, it is impossible to all adaptations.If specification matches, leakproofness is preferable, if not Match, poor sealing).First, it is not easy one-time-reach-place when inserting laryngeal mask, needs to adjust position repeatedly；Second, shifting is easy to happen in art Position, leads to gas leakage, when especially secretion is more；Just it is not easy when once shifting, then place；Some laryngeal masks are fixed Property it is relatively good, limited, but due to partially hard, and size fit problem, can be easy to cause by the physical arrangement of rear and front end Dislocation of cricoarytenoid joint.Inflate laryngeal mask cover scrotiform shape can with deformation, in Clinical Selection specification matching can cover more large-scale Crowd；Laryngeal mask stress deformation is inflated, fixed physical arrangement is not convenient for, rotation, displacement is easier, especially there is secretion When, it is easier to it shifts；Inflation laryngeal mask cover capsule front end is expanded in inflation, and excessive pressure can cause articulatio cricoary tenoidea to be squeezed, It can cause to dislocate；It inflates laryngeal mask to want to obtain preferable seal, intraluminal pressure is relatively high, causes compression.

Invention content

The utility model proposes a kind of good seal performance, the laryngeal mask cover capsules for being not easy to shift, will not turn down.

The technical solution adopted in the utility model is：

Laryngeal mask cover capsule is connected to the gas tube of inflation/deflation is carried out to it, is made of soft structures, outside the laryngeal mask cover capsule Shape structure is bonded setting with human body bottleneck throat structure, and the thickness of laryngeal mask cover capsule front end is thinner than the thickness at middle part, laryngeal mask cover capsule front end Width it is narrower than the width at middle part, the front end of the laryngeal mask cover capsule is exported equipped with tracheae, it is characterised in that：Before the laryngeal mask cover capsule The tracheae outlet at end is an angularly disposed structure, reduces the thickness of cover capsule front end, while reducing the resistance of placing larynx cover, prevents Laryngeal mask turns down when placing, and articulatio cricoary tenoidea will not be excessively oppressed in inflation, can prevent laryngeal mask from rotating, keep laryngeal mask easy In insertion, the compressing to epiglottis is reduced, the possibility of obstructing airway is reduced.

Further, the outer surface of the laryngeal mask cover capsule is provided with the retainer of protrusion.The utility model is by being arranged stop Portion increases the resistance of retrogressing, prevents laryngeal mask from causing displacement by outside extrusion.

Further, the retainer is the bead structures of a plurality of structure that is independently arranged or links into an integrated entity,

Alternatively, the retainer is multiple dot structures.

Further, the surface of the retainer is a smooth curved surface.When with mucous membrane front face, damage is reduced, is subtracted Few stress.

Further, the gas tube is equipped with pilot balloon and check valve.

The beneficial effects of the utility model：It is not easy to shift, will not turn down, be easily inserted, prevent human tissue structure from damaging.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is that the utility model uses structural schematic diagram.

Specific implementation mode

The utility model is further described with reference to specific embodiment, but the utility model is not limited to In these specific implementation modes.One skilled in the art would recognize that the utility model covers in Claims scope All alternatives, improvement project and the equivalent scheme that may include.

Referring to Fig. 1, laryngeal mask cover capsule is connected to the gas tube 5 for carrying out inflation/deflation to it, is made of soft structures, the larynx The front end of cover cover capsule 1 is equipped with tracheae and exports 12, and the tracheae outlet 12 is an angularly disposed structure, reduces the thickness of cover capsule front end Degree, while the resistance of placing larynx cover is reduced, it is turned down when preventing laryngeal mask from placing, and will not excessively oppress articulatio cricoary tenoidea.

The contour structures of laryngeal mask cover capsule 1 described in the present embodiment are bonded setting, 1 front end of laryngeal mask cover capsule with human body bottleneck throat structure Thickness it is thinner than the thickness at middle part, the width of 1 front end of laryngeal mask cover capsule is narrower than the width at middle part, can prevent laryngeal mask from rotating, make larynx Cover is easily inserted, and is reduced the compressing to epiglottis, is reduced the possibility of obstructing airway.

The retainer 11 of protrusion is provided on the outer surface of laryngeal mask cover capsule 1 described in the present embodiment, preferably at cover capsule back and Retainer is arranged in both sides, and the surface of retainer is a smooth curved surface.The present invention increases retrogressing by the way that retainer 11 is arranged Resistance prevents laryngeal mask from causing displacement by outside extrusion, when with mucous membrane front face, reduces damage, reduces stress.The present embodiment The back of laryngeal mask cover capsule 1 is provided with the retainer 11 of three independently arranged bead structures, is arranged in the both sides of laryngeal mask cover capsule 1 There is the retainer 11 for the structure that linked into an integrated entity by tibet cinnamon bark item.Bead structures and mucous membrane front face are Rouno Cormer Pregrinding Wheel or oblique angle, Damage is reduced, stress is reduced, the back side is small round corner, can increase resistance, is buckled in inside mucous membrane.Retainer 11 can also be multiple Dot structure can increase the resistance between mucous membrane.

Referring to Fig. 2, a kind of laryngeal mask, including cover capsule, be set to the intracapsular connector 2 of cover, be all connected with cover capsule and connector 2 Airway tube 3, be provided with two independent channels in the airway tube 3, two channels are corresponding on connector 2 and cover capsule respectively Tracheae outlet, the end set of airway tube 3 has machine end connector 4, the end set of airway tube 3 to have machine termination First 4, gas tube 5 is equipped in airway tube 3, gas tube 5 is equipped with pilot balloon 6 and check valve 7, by gas tube 5 to cover Capsule inflation/deflation.The connector 2 is a hard structure, increases laryngeal mask front end hardness, front end and bubble-contained, when being unlikely to be intubated too Hard damage, power of feeling better, placing larynx cover easy to operation avoid laryngeal mask from inserting and hinder epiglottis, are inserted into air flue etc..

In use, laryngeal mask is inserted into bottleneck throat, it is bonded with bottleneck throat to after the inflation of cover capsule by gas tube 5, plays sealing And fixed function, and increase by the retainer on cover capsule the backing resistance of laryngeal mask.Tracheae is passed through into air pipe passway respectively Intubation enters to lead to air flue and esophagus.Laryngeal mask may be either that patient's autonomous respiration provides channel, and can implement positive airway pressure.

Claims (6)

1. laryngeal mask cover capsule is connected to the gas tube of inflation/deflation is carried out to it, is made of soft structures, the shape of the laryngeal mask cover capsule Structure is bonded setting with human body bottleneck throat structure, and the thickness of laryngeal mask cover capsule front end is thinner than the thickness at middle part, laryngeal mask cover capsule front end Width is narrower than the width at middle part, and the front end of the laryngeal mask cover capsule is exported equipped with tracheae, it is characterised in that：The laryngeal mask cover capsule front end Tracheae outlet be an angularly disposed structure.

2. laryngeal mask cover capsule according to claim 1, it is characterised in that：The outer surface of the laryngeal mask cover capsule is provided with protrusion Retainer.

3. laryngeal mask cover capsule according to claim 2, it is characterised in that：The retainer is a plurality of to be independently arranged or connect into The bead structures of integral structure.

4. laryngeal mask cover capsule according to claim 2, it is characterised in that：The retainer is multiple dot structures.

5. laryngeal mask cover capsule according to claim 2, it is characterised in that：The surface of the retainer is a smooth curved surface.

6. the laryngeal mask cover capsule according to one of claim 1 ~ 5, it is characterised in that：The gas tube be equipped with pilot balloon and Check valve.