A kind of bronchoalveolar lavage catheterTechnical field
The present invention relates to alveolar wass catheter arts, specially a kind of bronchoalveolar lavage catheter.
Background technology
Bronchoalveolar lavage be by branchofiberoscope to bronchus with lower lung section or sub- lung section level, repeatedly withSterile saline lavation, recovery, carry out a series of detections and analysis, so as to obtain the property feature of lower respiratory tract lesion to itAnd active level, help to establish diagnosing.Traditional approach is injected physiological saline by a conduit in the bronchovesicular of people,It by inner chamber sem observation water level, could be reclaimed after bronchovesicular is full of water, therefore easily cause patient and be choked water, andReclaim insufficient, it is necessary to obtain and largely pour into physiological saline, thus it is especially high for the technical requirements of doctor, and after water-filling, it is rawReason salt solution can be flowed to elsewhere, and the physiological saline of recovery also has situation about being polluted elsewhere, it is impossible to carry out accurate diseaseReason is searched.
The content of the invention
It is an object of the invention to provide a kind of bronchoalveolar lavage catheter, to solve what is proposed in above-mentioned background technologyProblem.
To achieve the above object, the present invention provides following technical scheme：A kind of bronchoalveolar lavage catheter, including water inletConduit, the top of the penstock, which is provided with to connect on water filling port, water filling port, the first syringe, and the end of penstock is fixedIn the inner chamber of connector, water suction conduit is additionally provided with the inner chamber of connector, the top of water suction conduit is provided with recovery port, returnedIt is connected with each other in closing in by attachment means and the second syringe, the attachment means include the connection being threadedly coupled with recovery portMouthful, the connector is located at the bottom of connector, and the top of connector is provided with negative pressure mouthful, the second syringe and negative pressure mouthful phase mutual connectionIt is logical, valve switch is provided with the inner chamber of connector, connector, another side joint of valve switch are extended in the side of valve switchBe connected with tank, have cylindrical passageway and L-shaped passage on the valve switch in connector, the penstock andWater suction conduit merges into a common excretory duct respectively in connector, and the bottom end seal of common excretory duct is socketed with silica gel nipple, silica gel breastThe side of head is provided with apopore, and the opposite side of silica gel nipple is provided with suction hole.
It is preferred that, the head end of the L-shaped passage is located on the vertical center line of valve switch, and the tail end of L-shaped passage is located atOn the horizontal center line of valve switch, the vertical center line of cylindrical passageway and valve switch is parallel to each other, and cylindrical passageway is led to L-shapedNot at grade, changeover valve is switched to one grade in road, and the junction of the second syringe and water suction conduit is sealed, and promotes theOne syringe is to water filling in penstock, and changeover valve is switched to two grades, make the head and the tail two ends of cylindrical passageway respectively with negative pressure mouthfulConnected with connector, the second syringe extracts the physiological saline in suction hole out, changeover valve is switched to third gear, makes L-shaped passageHead end and negative pressure mouthful connect, the tail end of L-shaped passage is mutually connected with tank, and the physiological saline in the second syringe is storedInto tank.
It is preferred that, a diameter of 2mm of the common excretory duct.
It is preferred that, the outer wall positioned at the valve switch of connector inwall is provided with seal convexity, and the inwall of connector is openedThere is sealed groove, seal convexity cooperates with sealed groove.
Compared with prior art, the beneficial effects of the invention are as follows：In the present invention, the end of penstock and water suction conduit is meltedClose the common excretory duct for forming a 2mm so that when in common excretory duct insertion human body alveolar, the sense of discomfort of human body is reduced；Silica gel breastThe setting of head, prevents the end of main pipe from being damaged to alveolar；The setting of three gear valve switch so that doctor can be according to alveolarLavation flow is to select physiological saline injection, physiological saline to reclaim, the progress of physiological saline storage, reaches easy to use, preventsThe effect of infection.The present invention is simple, universal common with material, the cost of the medical producer goods of reduction, and is doing alveolar for patientThe process of lavation brings great convenience, prevents from infecting, effectively reduces sense of discomfort during lavation, improves the effect of lavationRate.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is two grades of schematic diagrames of valve switch；
Fig. 3 is valve switch third gear schematic diagram.
In figure：Water filling port 1, penstock 2, apopore 3, suction hole 4, absorb water conduit 5, recovery port 6, silica gel nipple 7, evenConnection device 8, connector 9, water storage mouthful 10, valve switch 11, negative pressure mouthful 12, the first syringe 13, connector 14, tank15, the second syringe 16, cylindrical passageway 17, L-shaped passage 18, connector 19.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, completeSite preparation is retouched, it is clear that the embodiment retouched is only a part of embodiment of the invention, rather than whole embodiments.Based on the present inventionIn embodiment, what those of ordinary skill in the art obtained under the premise of creative work is not made has other embodiment, allBelong to the scope of protection of the invention.
Fig. 1-3 are referred to, the present invention provides a kind of technical scheme：A kind of bronchoalveolar lavage catheter, including water inlet are ledPipe 2, the top of penstock 2, which is provided with to connect on water filling port 1, water filling port 1, the first syringe 13, and the end of penstock 2 is consolidatedDingan County is additionally provided with water suction conduit 5 in the inner chamber of connector 14 in the inner chamber of connector 14, the top of water suction conduit 5 is provided withIt is connected with each other in recovery port 6, recovery port 6 by attachment means 8 with the second syringe 16, attachment means 8 include and the spiral shell of recovery port 6The connector 9 of line connection, connector 9 is located at the bottom of connector 19, and the top of connector 19 is provided with negative pressure mouthful 12, the second injectionDevice 16 is mutually connected with negative pressure mouthful 12, and valve switch 11, the side extension of valve switch 11 are provided with the inner chamber of connector 19Go out connector 19, the outer wall positioned at the valve switch 11 of the inwall of connector 19 is provided with seal convexity, and the inwall of connector 19 is provided withSealed groove, seal convexity cooperates with sealed groove, ensures the sealing effectiveness between valve switch 11 and connector 19, valveThe opposite side of door switch 11, which is connected, tank 15, and cylindrical passageway is had on the valve switch 11 in connector 1917 and L-shaped passage 18, penstock 2 and water suction conduit 5 merge into a common excretory duct respectively in connector 14, common excretory duct it is straightFootpath is 2mm, and the common excretory duct to form a 2mm is merged in the end of penstock 2 and water suction conduit 5 so that common excretory duct inserts human bodyWhen IA, the sense of discomfort of human body is reduced；The bottom end seal of common excretory duct is socketed with silica gel nipple 7, and silica gel nipple 7 is setPut, prevent the end of main pipe from being damaged to alveolar；The side of silica gel nipple 7 is provided with apopore 3, silica gel nipple 7 it is anotherSide is provided with suction hole 4.The head end of L-shaped passage 18 is located on the vertical center line of valve switch 11, and the tail end of L-shaped passage 18 is located atOn the horizontal center line of valve switch 11, cylindrical passageway 17 and the vertical center line of valve switch 11 are parallel to each other, cylindrical passageway17 with L-shaped passage 18 not at grade, changeover valve switchs 11 to one grades, the company of the second syringe 16 and water suction conduit 5The place of connecing is sealed, and promotes the first syringe 13 to water filling in penstock 2, changeover valve switchs 11 to two grades, makes cylindrical passageway17 head and the tail two ends are connected with negative pressure mouthful 12 and connector 19 respectively, and the second syringe 16 takes out the physiological saline in suction hole 4Go out, changeover valve switch 11 to third gear, the head end and negative pressure mouthful 12 for making L-shaped passage 18 are connected, the tail end and water storage of L-shaped passage 18Container 15 is mutually connected, and the physiological saline in the second syringe 16 is stored into tank 15.Three keep off setting for valve switch 11Put so that doctor can be selected according to alveolar wass flow physiological saline injection, physiological saline reclaim, physiological saline storage enterOK, reach it is easy to use, prevent infection effect.The present invention is simple, universal common with material, the medical producer goods of reduction intoThis, and brings great convenience for patient in the process for doing alveolar wass, during preventing from infecting, effectively reducing lavationSense of discomfort, improves the efficiency of lavation.
Although having been shown and having retouched embodiments of the invention, for the ordinary skill in the art, Ke YiliSolution without departing from the principles and spirit of the present invention can to these embodiments carry out it is a variety of change, modification, replace andModification, the scope of the present invention is limited by attached claim and its equivalent.