CN103536395A - Trans-nasal-route Eustachian tube and tympanic cavity irrigation medicine feeding apparatus - Google Patents

Abstract

A trans-nasal-route Eustachian tube and tympanic cavity irrigation medicine feeding apparatus is an inside and outside integrated cannula structure. The apparatus comprises an irrigation medicine feeding tube and a catheter integrally sleeved on the outside of the tube. Limit mechanisms are arranged on the catheter and the irrigation medicine feeding tube wall. A support mechanism of the irrigation medicine feeding tube is arranged on the inner wall of the catheter, and gaps for waste liquid drainage are arranged between the catheter and the irrigation medicine feeding tube. A suction tube communicated with the inner wall of the catheter is arranged on the outer wall of the catheter. A guide adjusting sheet is fixedly connected onto the outer wall of the catheter. Needle seats are arranged at tail ends of the irrigation medicine feeding tube wall and the suction tube correspondingly. The shape of the catheter with a thin front portion and a thick rear portion is matched with the physiological structure of the human Eustachian tube. By means of the irrigation medicine feeding apparatus, the safety technological problems of damage to the tympanic membrane, the auditory ossicle, the oval window and the like caused by high pressure of the Eustachian tube and the tympanic cavity during irrigation through a single irrigation tube can be solved; the problems of that the single tube irrigation force is not enough and effusions cannot be irrigated out under the situation of the narrow or tumid Eustachian tube are solved; the problems of poor human body compliance and large trauma of parallel double-lumen tubes are solved; the apparatus is particularly applicable to patients with long Eustachian tubes or narrow isthmuses of Eustachian tubes.

Description

The pharyngotympanic tube of per nasal pathway to tympanum rinses, administrator

Technical field

The invention belongs to technical field of medical instruments, relate to a kind of medical apparatus and instruments that is used for the treatment of secretory otitis media, specifically, is that a kind of pharyngotympanic tube to tympanum of per nasal pathway rinses, administrator.

Background technology

Ear's structure of human body is mainly divided into external ear, middle ear and internal ear three parts, and middle ear mainly comprise pharyngotympanic tube, tympanum, tympanic antrum and mastoid air cell, and the pharyngotympanic tube critical piping that to be human nasal pharyngeal and tympanum is communicated with.Secretory otitis media (SOM) is to take the middle ear apyetous inflammatory diseases that middle ear effusion and auditory dysesthesia be feature, is one of otorhinolaryngology common disease.Especially going by air, swim underwater, hyperbaric oxygentherapy easily sends out while even catching a cold, show as in ear and stop up sense, tinnitus, otalgia, auditory dysesthesia, the symptom such as dizzy, if it is chronic that not timely healing will develop into, there are secretory otitis media, tympanum adhesion, cholesterol granuloma etc., cause severe complication.

Middle ear effusion is the key character of secretory otitis media, is mainly created in pharyngotympanic tube, tympanum, is faint yellow exudative mucus in early days, and thickening gradually later forms by " glue ", because its position exists deeply, be difficult to remove, and be the major reason affecting the treatment.

The method of traditional treatment secretory otitis media mainly contains:

1, systemic drug treatment, adopts antibiotic, glucocorticoid, and the method curative effect of medication is of short duration and limited, and side effect is many; 2, nasal cavity contracting agent, nose spray glucocorticoid, the method easily causes medicamentous rhinitis, and to deeply pharyngotympanic tube, tympanum be difficult to play a role; 3, pharyngotympanic tube catheterization, the insufflation of powder drug, the method is to not effect of the mucus in tympanum, pharyngotympanic tube, many times blows motionlessly, can not blow; 4, auripuncture (comprising laser boring), tube adapter for drum membrane, often adopt on many hospital clinicals, has wound, and mental pressure is large, the risk that also has hematoma, infection, perforation not to heal.

In recent years, the method treatment secretory otitis media of some hospital per nasal pathway pharyngotympanic tube administration, to direct, efficient, the noninvasive advantage of performance local application, wherein there is single tube form, there are (achievements in research before us) of two-tube form arranged side by side, though obtained certain curative effect, but still there is many shortcomings, some shortcomings remain serious, and below describe in detail:

One, Granted publication CN2472693Y discloses a kind of " throat tube middle ear cavity injection catheter ", is intended to dredge salpingianly medicinal liquid is injected into tympanum simultaneously, reaches the object for the treatment of otitis media.

Just, its outer tube can only play the restriction guiding function of inner tube, its outer tube diameter 1mm,, only there is 0.2mm gap between the two in inner tube external diameter 0.8mm, only can in outer tube, slide for inner tube, do not reserve space, its essence or the single tube form of for waste liquid, discharging.Especially, when the tube wall of outer catheter and salpingian tube wall are when fitting tightly state, continue again administration, the approach that there is no again drain like injection in blind pipe, certainly will cause both rushed motionless, the situation of also can not rushing, pharyngotympanic tube and intratympanic pressure can increase rapidly, the risk that all can have at any time oeil de boeuf damage, oeil de boeuf breaks and can cause patient to produce the symptoms such as sudden deafness, severe vertigo.

The handle arrangement adopting in its design is also impracticable clinically, when hand-held handle is adjusted direction, crooked wrist is very awkward, time is slightly grown and just can cause operator's fatigue, and due to lever principle, when rotation direction, its head end can produce huge torsion, very easily causes the damage of pharyngotympanic tube tissue.

In order to limit the depth of suction tube, the screw fixed form that it adopts is completely impracticable clinically.Because in practical operation, when rinsing delivery tube and enter salpingian narrow portion administration, patient has that " the vexed sensation such as swollen of singing of the stream ”, ear, now just shows that the penetration depth of syringe pipe has put in place, otherwise will adjust, hand-held apparatus can not be accomplished definitely fixing eventually.In actual clinical practice, from entering pharyngotympanic tube complete to administration, be not short process (will slowly carry out during injection, in order to avoid tympanum pressure increases suddenly, can cause the situations such as dizzy), also can there is a little displacement because of doctor's manual grade in outer tube, the design of fixed screw is too unrealistic.

Two, Granted publication CN2650739Y discloses other a pharyngotympanic tube irrigating catheter, and just its structure adopting is unfeasible clinically.From dissecting, pharyngotympanic tube adult total length is generally 35mm, approximately become 40 ° with horizontal plane, approximately at 45 ° with sagittal plane, by the osseous part in outside 1/3 and the cartilaginous part of inner side 2/3, formed its ostium tympanicum diameter 4.5mm, pharyngeal opening of auditory tube diameter 9mm, the narrowest is the isthmus that bone and cartilaginous part have a common boundary, and is 1～2mm.For the nasal cavity of human body, pharyngotympanic tube is the structure of an inclination, and entering pharyngotympanic tube is the process of " turning ", and pharyngotympanic tube narrows down to tympanum direction gradually from nasopharynx part opening part, and this is again " deep " process.With a long straight catheter, be only can not be accessible, it is only curved that the words that conduit is thick turn, or enter less than depths; Conduit is thin, or too soft, do not go deep into pharyngotympanic tube and be stuck in outside with regard to curved, or do very hard, that is just as " syringe needle " sample, the severe trauma of pharyngotympanic tube inwall once stamp enters just can cause.

Three, Granted publication CN202314625U discloses " a kind of human auditory tube washing device ", and it has set up a suction tube on the basis of syringe pipe, and the leading portion of upper and lower two pipes adopts the structure of parallel arranged; The back segment of suction tube is horizontally separated with respect to the back segment of syringe pipe, to facilitate the vacuuming operation of waste liquid.

In theory, this structure really both can be successfully to the tympanum of human body rinse, drug treatment, again can be by waste liquid sucking-off from pharyngotympanic tube in time, the pressure of unlikely increase tympanum, therapeutic effect should be good.

Yet it is not clinical practice finds, due to the leading portion cross section of upper and lower two pipes ovalize generally, adaptive with the physiological structure of the salpingian circular cross section of human body; Especially, in order to ensure the effect of flushing, administration and suction, the caliber of two pipes again can not be too little, like this, the caliber sum of two pipes certainly will cause the size of its cross section bigger than normal, will inevitably affect like this it and enter pharyngotympanic tube, also easily damage mucosa, cause patient's pain, hemorrhage; In actual use, the situation that even there will be tubal mucosa that suction tube is blocked, this is because also the compliance of tubulation is bad, it enters the process that pharyngotympanic tube is one " pushing " (pushing away mucosa squeezes in), rather than the process of " sliding " (sending to along mucosa), head end pushes away the mucosa accumulation of wrinkle like this, easily blocks suction tube.Especially narrow for the narrow portion of pharyngotympanic tube or occurred the patient of swelling situation, careless slightly during operation, just can cause the damage to pharyngotympanic tube tube wall.

In addition, the structure of Double tube paratactic, is manufactured in technique and is also difficult to realize with plastic material.

Four, Granted publication CN202590036U is exactly a syringe in essence, unfeasible clinically, similar with the second situation, structure is too simple, do not meet human dissection feature, do not meet human physiological structure, can't resolve the problems such as " turning ", " going deep into ".

In sum, per nasal pathway pharyngotympanic tube drug treatment secretory otitis media is a kind of to the exigent method of therapeutic device, most suitable apparatus, must meet as much as possible: easy to operate, human body compliance is good, it is little to damage, side effect is little and a series of requirements such as few intercurrent disease, also want to reach the targets of " being in place ", " punching, inhale in conjunction with ", " extending apart from administration " etc.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art or defect, provide a kind of pharyngotympanic tube of per nasal pathway to tympanum flushing, administrator, while both having solved the flushing of single tube syringe pipe, the pressure of pharyngotympanic tube and tympanum was high, the safety related technical problems such as damage tympanum, ear bones, oeil de boeuf; In the situation of solution eustachian tube stenosis or swelling, there is the problem that single tube impulse force is inadequate, hydrops can not rush; Also solve double lumen tube human body poor compliance arranged side by side, wound problem bigger than normal; The present invention is particularly useful for pharyngotympanic tube length or the narrower patient of pharyngotympanic tube isthmus.

To achieve these goals, the present invention has adopted following technical scheme:

The pharyngotympanic tube of per nasal pathway to tympanum rinses, administrator, it is characterized in that,

Described flushing, administrator are inside-outside integrated sleeve structure, comprise that movable flushing delivery tube and sleeve integrating are located at the conduit rinsing outside delivery tube;

Described conduit and the tube wall that rinses delivery tube are provided with to limit and rinse the axial range of activity of delivery tube in conduit and prevent its position-limit mechanism from skidding off in conduit;

The inwall of described conduit is provided with the supporting mechanism that rinses delivery tube, movable along the axis direction of conduit all the time to guarantee it, limits its radially range of activity in conduit simultaneously;

Between the outer wall of described pipe inner wall and flushing delivery tube, be provided with the gap being enough to for waste liquid discharge;

Described conduit outer wall is provided with the suction tube connecting with its inwall;

On described conduit outer wall, affixed one doublely does the guiding adjustment sheet that handle is used;

Described flushing delivery tube, the end correspondence of suction tube are provided with injection needle stand and suction needle stand;

Socket profile and the salpingian physiological structure of human body of described conduit are suitable, seamlessly transit from fine to coarse on the whole.

The pharyngotympanic tube of above-mentioned per nasal pathway to tympanum rinses, administrator, wherein,

Described position-limit mechanism comprises the stopper slot being axially disposed within on duct wall and is installed in the limited block rinsing on delivery tube tube wall; It is outer and be free to slide along the length direction of stopper slot that this limited block protrudes from stopper slot.

The length of described stopper slot is 3cm left and right.

The supporting mechanism of described flushing delivery tube comprises some groups of bracing frames that are installed on conduit first half section inwall and is installed in the sleeve on conduit second half section inwall.

Described bracing frame axially arranges continuously or intermittently along pipe inner wall, and its radial cross-section is bikini and is uniformly distributed shape.

The vis-a-vis of described adjustment sheet be arranged in parallel in the axially vertical cutting plane in the front of conduit.

It is mm that the tube wall of described flushing delivery tube is provided with length graduated scale ，Qi scale unit.

Described conduit first half section is provided with shaping section, and its termination is appropriateness and is bent downwardly shape.

The socket length of described conduit is 15～20cm; The internal diameter of conduit is 1.6～1.8mm; Its front end caliber is about 2mm, and rear end caliber is about 3mm.

The length of described suction tube is 15～20cm; Its external diameter is 1.0mm, and internal diameter is 0.8mm;

The external diameter of described flushing delivery tube is 0.8～1.0mm, and its internal diameter is 0.6mm; The length that is positioned at the flushing delivery tube outside described conduit is 20～25cm.

Owing to having adopted above-mentioned technical scheme, the present invention compared with prior art, has following advantage and good effect:

1. the outer catheter that the present invention arranges, except having possessed the function of restriction guiding, the more important thing is as suction tube plays a role precondition is provided; Owing to rinsing between delivery tube and conduit, reserve enough gaps, be convenient to suction.Thereby effectively solve therapeutic process herb liquid in the past and rushed the technical barrier motionless, waste liquid can not rush, avoided the increased pressure due to pharyngotympanic tube and tympanum, and the safety related technical problems of the tympanum occurring, ear bones, oeil de boeuf equivalent damage.

2. on the tube wall of conduit and flushing delivery tube, position-limit mechanism is set, on the one hand, make this flushing administrator device form the sleeve structure of integral type from structure, when producing, internal and external casing is directly set in together, taking outer package apart just can directly use, avoid due to interim poling, occur the anthropic factor of fit on and affect it normally using; On the other hand, can prevent that inner sleeve from skidding off from trocar sheath, and limit and rinsed the range of activity of delivery tube in conduit, meet the length on pharyngotympanic tube dissect physiology, unlikely too deep; Again on the one hand, can within the scope of this, finely tune the depth of flushing delivery tube during operation, what be unlikely to limit as fixed screw too extremely and not has a practicality.

3, the setting of pipe inner wall upper support mechanism, can guarantee to rinse delivery tube movable along the axis direction of conduit all the time, also limit its radially range of activity in conduit, unlikely appearance is rinsed delivery tube part pipeline section and is crimped onto in conduit and affects its normal situation about using simultaneously;

4. adopt the double guiding adjustment sheet that handle is used of doing, during operation, can control exactly the direction that catheter end head enters nasal cavity, with thumb, forefinger, middle finger, can grip, flexible during operation, wrist can not tired out, and head end can not produce larger torsion yet, and feel is good especially.

5. rinse the setting of length graduated scale on delivery tube, physiological structure situation that can be different according to different patients, controls the depth of rinsing delivery tube exactly, is specially adapted to pharyngotympanic tube length or the narrower patient of pharyngotympanic tube isthmus.

6. conduit first half section is provided with shaping section, and physiological structure situation that can be different according to different patients moderately regulates the angle that enters the salpingian catheter end head of human body; Meanwhile, socket profile and the salpingian physiological structure of human body of conduit are suitable, are on the whole front fine and rear thick moulding; In the termination of stretching into the catheter end head of nasal cavity and rinsing delivery tube, protective sleeve and protection head are set, can alleviate to greatest extent patient's misery, to obtaining best therapeutic effect.

Accompanying drawing explanation

By following examples and in conjunction with the description of its accompanying drawing, can further understand the purpose of the invention, specific structure features and advantages.In accompanying drawing,

Fig. 1 is that pharyngotympanic tube to the tympanum of the per nasal pathway that the present invention relates to rinses, the positive overall structure schematic diagram of administrator;

Fig. 2 is the section structure for amplifying schematic diagram along A-A, B-B line in Fig. 1;

Fig. 3 is the section structure for amplifying schematic diagram along C-C, D-D line in Fig. 1;

Fig. 4 is that G in Fig. 1 is to structure for amplifying schematic diagram;

Fig. 5 is the section structure for amplifying schematic diagram along E-E line in Fig. 4;

Fig. 6 is that F in Fig. 1 is to local structure for amplifying schematic diagram;

Fig. 7 is the shaping section structure for amplifying schematic diagram arranging on conduit in Fig. 1;

Fig. 8 is provided with the structural representation of length scales on the flushing delivery tube in Fig. 1.

Fig. 9, the 10th, the injection needle stand in Fig. 1, the suction section structure for amplifying schematic diagram of needle stand;

In figure:

1-conduit; 11-shaping section; 12-protective sleeve; 13-stopper slot;

2-rinses delivery tube; 21a-bracing frame 21b-support tube; 22-protects head; 23-limited block;

24-length graduated scale;

3-suction tube;

The 4-adjustment sheet that leads;

5-injection needle stand;

6-suction needle stand;

The angle of bend that α-catheter end head level is downward;

X-rinse to manage and conduit between the gap of discharging for waste liquid.

The specific embodiment

Referring to Fig. 1, coordinate referring to Fig. 2～Figure 10, the pharyngotympanic tube of the per nasal pathway the present invention relates to tympanum rinses, administrator, and its key technology scheme is,

The flushing administrator device the present invention relates to mainly comprises that movable flushing delivery tube 2 and sleeve integrating are located at the conduit 1 rinsing outside delivery tube, and it is inside-outside integrated sleeve structure on the whole;

The tube wall of conduit 1 and flushing delivery tube 2 is provided with the position-limit mechanism as shown in Fig. 1,4,5.This position-limit mechanism mainly comprises the stopper slot 13 being axially disposed within on conduit 1 tube wall and is installed in the limited block 23 rinsing on delivery tube 2 tube walls; It is outer and be free to slide along the length direction of stopper slot 13 that this limited block 23 protrudes from stopper slot 13.Axial range of activity with restriction flushing delivery tube 2 in conduit 1 also prevents that it from skidding off in conduit 1.

The axial range of activity of delivery tube 2 in conduit 1 rinsed in restriction, be intended to according to different patients' different physiological structures and even the different state of an illness, limit the depth that it enters human body pharyngotympanic tube, tympanum, in the present embodiment, the length of stopper slot 13 is 3cm left and right, that is to say, rinse delivery tube 2 on the basis of original depth, depth 3cm left and right can also extend or shrink back.The injection needle stand 5 that utilization is arranged on flushing delivery tube 2 ends as shown in Figure 9 directly rinses, administration.

As shown in Figure 1, the socket profile of the present invention's conduit 1 is set to the salpingian physiological structure of human body suitable, is on the whole front fine and rear thick moulding.The socket length of conduit is 18cm left and right; Its front end caliber is about 2mm, and rear end caliber is about 3mm.And, in the first half section of conduit 1, being provided with shaping section 11 as shown in Figure 7, its termination is appropriate level and is bent downwardly shape, and crooked angle [alpha] is about 40 °～60 °.Conduit 1, the front end correspondence of rinsing delivery tube 2 are provided with the round and smooth protective sleeve 12 of its appearance, protection 22.So both handled easily, can avoid again causing wound to patient's pharyngotympanic tube, at utmost alleviated the misery in patient treatment process.

In order to obtain best suction effect, the present invention is provided with the supporting mechanism of the flushing delivery tube 2 as shown in Fig. 2,3 on the inwall of conduit 1, and this supporting mechanism comprises some groups of bracing frame 21a being installed on conduit 1 first half section inwall and the support tube 21b on second half section inwall.Movable along the axis direction of conduit 1 all the time to guarantee it, limit its radially range of activity in conduit 1 simultaneously;

Bracing frame 21a axially arranges continuously or intermittently along pipe inner wall, and its radial cross-section is bikini and is uniformly distributed shape.Make to reserve the gap X being enough to for waste liquid discharge between the inwall of conduit 1 and the outer wall of flushing delivery tube 2.Wherein, the internal diameter of conduit 1 is 1.6～1.8mm, and the external diameter that rinses delivery tube 2 is 0.8～1.0mm, and gap X value is between the two 0.6～1.0mm.That is to say, the gap about 0.5mm is respectively left in the radially both sides of rinsing between delivery tube 2 and the inwall of conduit, is very beneficial for the discharge of waste liquid.

On this basis, as shown in Figure 1, the present invention is provided with again with its inwall and connects simultaneously the suction tube 3 being connected with above-mentioned gap X on the outer wall of conduit 1; And be provided with a needle stand 6 of suction use as shown in Figure 10 at the end of suction tube 3, in time the waste liquid in therapeutic process is pumped out.The length of the suction tube the present invention relates to is 15～20cm, and its external diameter is 1.0mm, and internal diameter is 0.8mm.

On the outer wall of conduit 1, affixed one doublely does the guiding adjustment sheet 4 that handle is used; The vis-a-vis of adjustment sheet be arranged in parallel in the axially vertical cutting plane in the front of conduit 1.Utilize the effect of this guiding adjustment sheet 4, during operation, can adjust exactly or control the direction that catheter end head enters nasal cavity, reduce to greatest extent operational error.

As shown in Figure 8, the depth of rinsing delivery tube 2 during for control operation exactly, it is that graduated scale in mm(figure has adopted omissive representation that spy of the present invention is provided with length graduated scale 24，Qi scale unit on the tube wall that rinses delivery tube 2).The length that is positioned at the flushing delivery tube 2 outside conduit 1 is 20～25cm.

In the present embodiment, the front end external diameter 2mm of conduit 1, internal diameter 1.8mm, rear end external diameter 3mm, internal diameter 1.8mm.The socket of conduit 1 becomes to seamlessly transit state on the whole from fine to coarse, and its internal diameter remains unchanged.

Rinse the external diameter 0.8mm of delivery tube, internal diameter 0.6mm.Can need to pass through smoothly pharyngotympanic tube isthmus according to treatment like this, enter in tympanic opening of auditory tube and tympanum.

On the making material of flushing of the present invention, administrator except adopting metal material as the material of rustless steel etc., preferably adopt medical-grade plastics material, plastic material is convenient to processing and fabricating on the one hand, the flexibility of plastic material and suppleness are moderate on the other hand, can reduce to greatest extent flushing, the degree of administrator to damage that tissue causes in therapeutic process, even can avoid completely.

Application example 1

Under intranasal mirror, doctor is controlling and is rinsing the double guiding adjustment sheet 4 of making handle arranging on administrator; The head end that rinses administrator is stretched to nasal cavity, find pharyngeal opening of auditory tube (back lower place in concha nasalis inferior rear end), utilize the conduit 1 of administrator and the effect of suction tube 3 of rinsing, by suction, use the secretions of needle stand 6 exhaustion pharyngeal opening of auditory tube place retentions, see clearly after pharyngeal opening of auditory tube the head end appropriateness of rinsing administrator conduit 1 to external rotation and be inserted into pharyngeal opening of auditory tube, then slightly upwards carry, till feeling that resistance is large, now, just can judge exactly: trocar sheath is that the head end of conduit 1 has reached the narrowest isthmus of pharyngotympanic tube.

At this very moment, must keep trocar sheath is that the position of conduit 1 is motionless, and then, inner sleeve is rinsed to delivery tube 2 prolongations and send into, observe the indicating graduation that rinses the length graduated scale 24 arranging on delivery tube 2 simultaneously, generally enter 1～2cm left and right, owing to rinsing the setting of administrator upper limit mechanism, the prolongation penetration depth that rinses delivery tube 2 must not can not surpass 3cm yet, through pharyngotympanic tube isthmus, according to treatment, need to arrive tympanic opening of auditory tube or enter tympanum.

Then, by assistant, by injection needle stand 5, by triamcinolone acetonide medicinal liquid, (2～3ml approximately, containing the triamcinolone acetonide medicinal liquid of 2.2～3.3mg, is preferably warmed to 36 ℃ with front.) by inner sleeve, rinse that delivery tube 2 injects tympanums, pharyngotympanic tube rinses administration, simultaneously, by assistant, by trocar sheath, be that conduit 1 and suction tube 3 aspirate, utilize suction with needle stand 6, the mucus flushing out and follow-up unnecessary medicinal liquid to be extracted out, now patient has and tells slight otalgia and listen the situation of smelling singing of the stream, illustrate that medicinal liquid has entered tympanum, arrived the position for the treatment of, carrying out the displacement with the inside mucus.

When treatment finishes, keep push away the action of medicine and suction on one side, slowly extract out and rinse administrator on one side, so just mucus residual in pharyngotympanic tube can be cleaned out completely.

Application example 2

Operational approach is substantially the same, meets the situations such as minority case concha nasalis inferior rear end is loose, pharyngeal opening of auditory tube position is higher, rinses the initial angle of bend of administrator will seem not, just there will be the situation of " can't reach ", " can not stretching " pharyngeal opening of auditory tube.

Now, owing to rinsing in the first half section that administrator trocar sheath is conduit 1, be provided with shaping section 11 as shown in Figure 7, utilize it can the crooked moulding feature of appropriateness, according to concrete practical situation appropriateness, adjust, adapt to the variation of anatomical structure, can complete smoothly subsequent operation.

Actual fabrication adds man-hour, preferred preferred plan is: adopt medical plastic cement or plastic or other material, the present invention " pharyngotympanic tube of per nasal pathway to tympanum rinses, administrator " can be made on the whole like this can disposable approved product, pack sealing after aseptic sterilization, as disposable syringe, using can be convenient, especially can avoid causing the sterilization situation that makes to produce between patient cross infection of reusing not in place due to apparatus.

Clinic trial situation shows, the pharyngotympanic tube of the per nasal pathway the present invention relates to tympanum rinses, administrator, can meet completely: easy to operate, human body compliance is good, it is little to damage, side effect is little and a series of requirements such as few intercurrent disease; Meanwhile, can also reach exactly the targets such as " being in place ", " punching, suction combination ", " extending apart from administration ".

Claims (10)

1. the pharyngotympanic tube of per nasal pathway, to tympanum flushing, administrator, is characterized in that,

Described flushing, administrator are inside-outside integrated sleeve structure, comprise that movable flushing delivery tube and sleeve integrating are located at the conduit rinsing outside delivery tube;

Described conduit and the tube wall that rinses delivery tube are provided with to limit and rinse the axial range of activity of delivery tube in conduit and prevent its position-limit mechanism from skidding off in conduit;

The inwall of described conduit is provided with the supporting mechanism that rinses delivery tube, movable along the axis direction of conduit all the time to guarantee it, limits its radially range of activity in conduit simultaneously;

Between the outer wall of described pipe inner wall and flushing delivery tube, be provided with the gap being enough to for waste liquid discharge;

Described conduit outer wall is provided with the suction tube connecting with its inwall;

On described conduit outer wall, affixed one doublely does the guiding adjustment sheet that handle is used;

Described flushing delivery tube, the end correspondence of suction tube are provided with injection needle stand and suction needle stand;

Socket profile and the salpingian physiological structure of human body of described conduit are suitable, seamlessly transit from fine to coarse on the whole.

2. the pharyngotympanic tube of per nasal pathway according to claim 1, to tympanum flushing, administrator, is characterized in that, described position-limit mechanism comprises the stopper slot being axially disposed within on duct wall and is installed in the limited block rinsing on delivery tube tube wall; It is outer and be free to slide along the length direction of stopper slot that this limited block protrudes from stopper slot.

3. the pharyngotympanic tube of per nasal pathway according to claim 1 and 2, to tympanum flushing, administrator, is characterized in that, the length of described stopper slot is 3cm left and right.

4. the pharyngotympanic tube of per nasal pathway according to claim 1 and 2 is to tympanum flushing, administrator, it is characterized in that, the supporting mechanism of described flushing delivery tube comprises some groups of bracing frames that are installed on conduit first half section inwall and is installed in the sleeve on conduit second half section inwall.

5. the pharyngotympanic tube of per nasal pathway according to claim 4, to tympanum flushing, administrator, is characterized in that, described bracing frame axially arranges continuously or intermittently along pipe inner wall, and its radial cross-section is bikini and is uniformly distributed shape.

6. the pharyngotympanic tube of per nasal pathway according to claim 1, to tympanum flushing, administrator, is characterized in that, the vis-a-vis of described adjustment sheet be arranged in parallel in the axially vertical cutting plane in the front of conduit.

7. the pharyngotympanic tube of per nasal pathway according to claim 1, to tympanum flushing, administrator, is characterized in that, it is mm that the tube wall of described flushing delivery tube is provided with length graduated scale ，Qi scale unit.

8. the pharyngotympanic tube of per nasal pathway according to claim 1, to tympanum flushing, administrator, is characterized in that, described conduit first half section is provided with shaping section, and its termination is appropriateness and is bent downwardly shape.

According to the pharyngotympanic tube of the per nasal pathway described in claim 1 or 2 or 8 to tympanum rinse, administrator, it is characterized in that, the socket length of described conduit is 15～20cm; The internal diameter of conduit is 1.6～1.8mm; Its front end caliber is about 2mm, and rear end caliber is about 3mm.

According to the pharyngotympanic tube of the per nasal pathway described in claim 1 or 2 or 8 to tympanum rinse, administrator, it is characterized in that, the length of described suction tube is 15～20cm; Its external diameter is 1.0mm, and internal diameter is 0.8mm;

The external diameter of described flushing delivery tube is 0.8～1.0mm, and its internal diameter is 0.6mm; The length that is positioned at the flushing delivery tube outside described conduit is 20～25cm.

Images