CN102743194A - Double-sleeve anti-pollution suction and lavage catheter - Google Patents
Double-sleeve anti-pollution suction and lavage catheter Download PDFInfo
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- CN102743194A CN102743194A CN2012102675799A CN201210267579A CN102743194A CN 102743194 A CN102743194 A CN 102743194A CN 2012102675799 A CN2012102675799 A CN 2012102675799A CN 201210267579 A CN201210267579 A CN 201210267579A CN 102743194 A CN102743194 A CN 102743194A
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- inner sleeve
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- trocar sheath
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Abstract
The invention belongs to a disposable double-sleeve anti-pollution suction and lavage catheter, which comprises an outer sleeve and an inner sleeve, wherein the top end of the outer sleeve is sealed by a crossed shear mark film; the outer sleeve comprises a top end with the crossed shear mark film and an expanded tail end, wherein the top end can be sealed before use and propped up by an inner sleeve in use; the outside of the top end of the inner sleeve is polished, then the inner sleeve can be closed when being inserted to a fine bronchus so as to conduct the bronchoalveolar lavage conveniently; the tail end of the inner sleeve is connected with a three-way pipe, and the three-way pipe is provided with three interfaces: an input end interface, an output end interface and a middle interface; the input end interface is connected with the inner sleeve, the inside diameter of the output end interface is matched up with the outside diameter of an injector interface for internally connecting an injector; the middle interface of the three-way pipe is further provided with a sealing cover for sealing and covering the middle interface; the middle interface can be connected with a sample container. The double-sleeve anti-pollution suction and lavage catheter is good in anti-pollution effect, high in sensitivity, wide in applicability and convenient to use; and furthermore, the catheter can perform suction and lavage.
Description
Technical field
The present invention relates to the two cover of a kind of lower respiratory tract tube anti-pollution sample collecting apparatus, relate in particular to the vacuum suction and the lavation sample collecting apparatus of the two cover of a kind of disposable lower respiratory tract tube anti-pollution BIAO and BEN.
Background technology
Lower respiratory infection (comprising bronchitis and pneumonia) is still one of principal disease of serious harm human health, and its case fatality rate rises to some extent in recent years.Clear and definite bacteria pathogeny learn diagnosis to the rational Application antibacterials with improve prognosis and be of great importance, its biggest obstacle is that oral cavity and upper respiratory tract reside the pollution of flora to BIAO and BEN.Its maximum difficulty is to lack a kind of both safety and is prone to row, the sampling method that can avoid the resident flora of oral cavity and upper respiratory tract to pollute again effectively.Because there are normal flora in people's oral cavity and upper respiratory tract, it comprise 21 belong to 200 surplus kind of antibacterial, every milliliter secretions contains antibacterial 10
7~ 10
9CFU.In addition, accept the patient of antibiotics and immunosuppressant therapy for a long time, pars oralis pharyngis often has a large amount of gram negative bacilli, field planting such as golden Fructus Vitis viniferae and fungus.These resident floras pollute the expectoration BIAO and BEN.Even the expectorant sampling is very careful, 1 part of purulent sputum is mixed with 1% part of saliva, and contaminated bacteria concentration reduces to 10
5~ 10
7/ ml, but equate with the pathogen concentration of pulmonary infection secretions is enough to a large amount of existing showing on smear, is the moderate growth at least on culture medium, reports that abroad best test chamber utilizes the expectoration BIAO and BEN to carry out bacteria quantified and cultivate its accuracy rate about 50%.So expectoration BIAO and BEN bacteria cultivation results can not correctly reflect the real pathogen of lower respiratory infection.Fibre bronchus mirror provides a new way for directly taking lower respiratory tract secretions, but fibre bronchus mirror is often contaminated at its front end when the upper respiratory tract and attraction pipeline, so fibre bronchus mirror's Direct Sampling still can not be used for bacteriology checking.
Protected specimen bruss (PSB) sampling.1979, Wineberley was used for the PSB technology sampling of pulmonary infection sample.PSB is that overcoat is the nylon bruss of two-ply plastic, and the outer layer plastic tube far-end seals with Polyethylene Glycol.The basic operation method of PSB sampling is: bronchoscope is placed intend the bronchial opening part of sampling; Thereafter the PSB conduit is delivered to above bronchoscope far-end 1～2cm; With inner sleeve the Polyethylene Glycol plug top of closed outer casing pipe is taken off; Surmount the about 2cm of trocar sheath, subsequently nylon bristle is stretched out inner sleeve 2～3cm brush and get secretions.After the sampling, successively hairbrush is return inner sleeve, inner sleeve is return trocar sheath, at last PSB is withdrawed from by bronchoscope.Disinfect the trocar sheath of PSB after the sampling in alcohol, cut off the head portion of internal and external casing with sterile scissors, the hairbrush and it is cut of protracting again places in the sterile saline 1ml, in 30 minutes, sends to laboratory.Bronchoalveolar lavage (BAL) sampling: the inferior segmental bronchi that fibre bronchus mirror is embedded in region of interest; (amount of the normal saline of being irritated none regard is still at present seen with physiological saline solution in filling; But as far as pulmonary infection; At least need 100ml just can reach the periphery position of inferior lung section), will irritate liquid and directly inspect by ready samples.This method has important value to diagnosis Pneumocystis carinii, infection due to Mycobacterium tuberculosis and deep fungal infection.BAL returns absorbtivity and can reach 5%～70% of perfusion total amount, but infect the lobe of the lung return absorbtivity lower usually (due to the air flue edema that infects the lung zone), less than 10% usually.It should be noted that BAL more is prone to bring out hypoxemia than PSB.Recently, protectiveness BAL (PBAL) causes clinical concern for the reliability that guarantees BAL sampling BIAO and BEN.Adorn with air bag at the irrigating tube leading portion during PBAL, when irrigating tube is inserted to homologous bronchi that airbag aeration is regional with lung under sealing this bronchus, carry out lavation then, can obviously reduce the chance that BIAO and BEN pollutes in the BAL process.Obtain clinical attention in recent years without the branchofiberoscope sampling technique,, draw the quantitative antibacterial culturing of thing (QEA) etc. in promptly so-called blind method BAL (NBAL) and the trachea like PBS, BAL without fibre bronchus mirror.These technology are mainly used in the diagnosis of patients with mechanical ventilation respirator associated pneumonia among the ICU, but also have some problems.Attached first Zhai of king family of hospital of domestic Dalian Medical College and Lei Zhen etc. designed at single sleeve pipe hairbrush end and jumped a queue, attract the hole to add two plug protective measures of a protection plug again at fibre bronchus mirror's far-end simultaneously, obtain the preventing polluting effect of some.
Owing to PSB making difficulty, it is few to obtain specimen amount, and cell is yielding low with positive rate, possibility secondary pollution when the acquisition BIAO and BEN dissolves in normal saline, and cost is higher, so be difficult to apply.In order to solve an anti-pollution difficult problem; I invent multi in 2002 " anti-pollutting device for fibroscope "; Obtained the national inventing patent (patent No.: 01106960.0), produced patented product, obtained the 2002 annual Shaoyang City scientific and technological achievement first prizes; Successfully held Hunan Province's continuing education project in 2003, apply in the whole province.Use bronchoscopic difficulty because this device has increased, influenced further and applied.I invent multi in 2011 " multifunctional medical the sample harvester " (patent No.: 201120168251.2) obtain to reduce cell and the bronchoalveolar lavage fluid BIAO and BEN that pollutes; Very convenient when obtaining cytology and lavation BIAO and BEN when this device is used for disease such as bronchoscopy diagnosing, limited but it prevents to pollute.
Summary of the invention
For overcoming the deficiency of said apparatus, I have invented a kind of disposable two cover tube anti-pollutions again and have attracted and lavage catheter (having another name called the anti-pollution sample collecting apparatus of lower respiratory tract).
The present invention includes the trocar sheath of top by the membrane sealed of band cross cut channel, this trocar sheath comprises the top of the band cross cut channel thin film that uses preceding sealing, can back down with inner sleeve when using and the tail end that expands; Inner sleeve, this outside, inner sleeve top is through polishing, and the inner sleeve tail end connects tee T; This tee T has three interfaces: input end interface, outfan interface and middle part interface, and input end interface connects inner sleeve, outfan interface internal diameter and syringe interface external diameter coupling; Connect syringe in being used for; The catheter diameter coupling of its external diameter and electronic vacuum extractor is used for external electronic vacuum extractor, and the middle part seam of tee T also is provided with a seal cover; Be used for capping middle part interface, the middle part interface can connect specimen container.
The purposes of two cover tube anti-pollutions attractions and lavage catheter: when this product uses; Make inner sleeve back down the top of band cross cut channel thin film on the trocar sheath earlier; Inner sleeve stretches out from the trocar sheath top; Make inner sleeve be inserted into bronchioles again, reach diseased region, after tee T directly attracts secretions or injects the normal saline lavation, attract to obtain free of contamination lower respiratory tract BIAO and BEN.
It is characterized in that: trocar sheath protection inner sleeve prevents to pollute, and this trocar sheath comprises the top of the band cross cut channel thin film that uses preceding sealing, can back down with inner sleeve when using; Inner sleeve stretches out from the trocar sheath top, and outside, this inner sleeve top is through polishing, and inner sleeve is inserted into can be airtight when bronchiolar, is convenient to do bronchoalveolar lavage.Reach diseased region, after tee T directly attracts secretions or injects the normal saline lavation, attract to obtain free of contamination lower respiratory tract BIAO and BEN.
Its advantage is: compare with protected specimen bruss (PSB) sampling, make simple, cheap; The trocar sheath top is anti-pollution littler to the human influence with the sealed by film of band cross cut channel, can attract simultaneously and lavation, and the specimen amount of acquisition is big; Representative good, so sensitivity is high, through the direct specimen taken of tee T; Avoid secondary pollution, reduced medical personnel's work.Compare with protectiveness bronchoalveolar lavage (PBAL) sampling, this conduit directly inserts thinner bronchia, and the outside, top is strengthened and bronchial seal through the polishing back, and is better than sacculus preventing polluting effect, makes simple.The advantage of protected specimen bruss (PSB) and protectiveness bronchoalveolar lavage (PBAL) has been gathered in this invention dexterously in a word, has reduced shortcoming, but can attract and lavation, and sensitivity is high, and expense is low, and the suitability is wide, and is easy to use
The present invention provides the vacuum suction and the lavation sample collecting apparatus of the two cover of a kind of disposable lower respiratory tract tube anti-pollution BIAO and BEN; Obtain free of contamination lower respiratory tract BIAO and BEN; Be expected to solve " avoid polluting; improve the accuracy of lower respiratory infection etiological diagnosis, improve sensitivity and specificity " this global problem, form an industrial chain of grasping core technology.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is an axonometric chart of the present invention.
Fig. 3 is a profile of the present invention.
The specific embodiment
The design of tube anti-pollution attraction of the two cover of lower respiratory tract and lavage catheter (the anti-pollution sample collecting apparatus of lower respiratory tract):
A kind of disposable two cover tube anti-pollutions attract and lavage catheter (the anti-pollution sample collecting apparatus of lower respiratory tract); Comprise the trocar sheath (1) of top by the membrane sealed of band cross cut channel; This trocar sheath comprises the top (11) of the band cross cut channel thin film that uses preceding sealing, can back down with inner sleeve when using and the tail end (12) that expands; Inner sleeve (2); Outside, this inner sleeve top (21) is through polishing, and inner sleeve is inserted into can be airtight when bronchiolar, is convenient to do bronchoalveolar lavage; The inner sleeve tail end connects tee T (3); This tee T has three interfaces: input end interface (31), outfan interface (32) and middle part interface (33); Input end interface (31) connects inner sleeve (2), and outfan interface (32) internal diameter and syringe interface external diameter coupling connect syringe in being used for; The catheter diameter coupling of its external diameter and electronic vacuum extractor is used for external electronic vacuum extractor; The middle part interface (33) of tee T is located also to be provided with a seal cover, is used for capping middle part interface, and middle part interface (33) can connect specimen container.
The purposes of attraction of disposable two cover tube anti-pollution and lavage catheter (the anti-pollution sample collecting apparatus of lower respiratory tract); It is characterized in that: trocar sheath (1) protection inner sleeve (2) prevents to pollute; This trocar sheath comprises the top (11) of the band cross cut channel thin film that uses preceding sealing, can back down with inner sleeve when using; Inner sleeve (2) stretches out from trocar sheath top (11); Outside, this inner sleeve top (21) is through polishing, and inner sleeve is inserted into can be airtight when bronchiolar, is convenient to do bronchoalveolar lavage; Reach diseased region, after tee T (3) directly attracts secretions or injects the normal saline lavation, attract to obtain free of contamination lower respiratory tract BIAO and BEN.
1, through the two cover of bronchoscope tube anti-pollution sample collecting apparatus sampling method:
Conventional ultrasonic atomizatio sucks 2% lignocaine 10ml topical anesthesia and sucks atropine 0.5mg and reduces air flue mucous secretion, guarantees that anesthesia is satisfied.With sputum aspirator tube exhaust nasal cavity, oral cavity and pharyngeal secretions.Insert trachea and bronchus to the disinfectant bronchoscope from glottis; Seek diseased region; Insert " disposable two cover tube anti-pollution negative pressure catheters " from bronchoscope, when arriving diseased region, inner sleeve (2) stretches out from trocar sheath top (11); Reach diseased region, after tee T (3) directly attracts secretions or injects normal saline, attract to obtain free of contamination lower respiratory tract BIAO and BEN.
2, through the two cover of artificial airway tube anti-pollution sample collecting apparatus sampling method:
For the patient who sets up artificial airway's (tracheal intubation and tracheotomy); Earlier suck (or spraying into) anesthesia,, directly insert " disposable two tube anti-pollution negative pressure catheters that overlap " from the artificial airway with the sputum aspirator tube secretions that exhausts with 2% lignocaine ultrasonic atomizatio; When arriving diseased region; Inner sleeve (2) stretches out from trocar sheath top (11), reaches diseased region, and lavation attracts to obtain free of contamination lower respiratory tract BIAO and BEN after tee T (3) directly attracts secretions or injects normal saline.
Claims (2)
1. two cover tube anti-pollutions attract and lavage catheter; It is characterized in that: it comprises the trocar sheath (1) of top by the membrane sealed of band cross cut channel, and this trocar sheath (1) comprises the top (11) of the band cross cut channel thin film that uses preceding sealing, can back down with inner sleeve when using and the tail end (12) that expands; Inner sleeve (2), outside, this inner sleeve (2) top (21) are through polishing, and the inner sleeve tail end connects tee T (3); This tee T (3) has three interfaces: input end interface (31), outfan interface (32) and middle part interface (33), and input end interface (31) connects inner sleeve (2), outfan interface (32) internal diameter and syringe interface external diameter coupling; Connect syringe in being used for; The catheter diameter coupling of its external diameter and electronic vacuum extractor is used for external electronic vacuum extractor, and the middle part interface (33) of tee T locates also to be provided with a seal cover; Be used for capping middle part interface, middle part interface (33) can connect specimen container.
2. the purposes of two cover tube anti-pollution according to claim 1 attraction and lavage catheter; It is characterized in that: when this product uses; Make inner sleeve (2) back down the top (11) of band cross cut channel thin film on the trocar sheath earlier, inner sleeve (2) stretches out from trocar sheath top (11), makes inner sleeve be inserted into bronchioles again; Reach diseased region, after tee T (3) directly attracts secretions or injects the normal saline lavation, attract to obtain free of contamination lower respiratory tract BIAO and BEN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102675799A CN102743194A (en) | 2012-07-31 | 2012-07-31 | Double-sleeve anti-pollution suction and lavage catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102675799A CN102743194A (en) | 2012-07-31 | 2012-07-31 | Double-sleeve anti-pollution suction and lavage catheter |
Publications (1)
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| CN102743194A true CN102743194A (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102675799A Pending CN102743194A (en) | 2012-07-31 | 2012-07-31 | Double-sleeve anti-pollution suction and lavage catheter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895004A (en) * | 2012-10-26 | 2013-01-30 | 中国人民解放军第三军医大学第二附属医院 | Cannula used for experimental animal bronchoalveolar lavage |
| CN105424917A (en) * | 2016-01-16 | 2016-03-23 | 刘静 | Special component for cell secretion test device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87215978U (en) * | 1987-12-01 | 1988-07-13 | 苏州吴县高分子医疗器械厂 | Double sheathed negative pressure lavaging and drainage tube |
| US5083561A (en) * | 1990-06-14 | 1992-01-28 | Russo Ronald D | Tracheal suction catheter |
| US5836918A (en) * | 1995-06-01 | 1998-11-17 | Dondlinger; Steven C. | Sleeved suction device |
| CN101274111A (en) * | 2008-04-07 | 2008-10-01 | 朱国华 | Electric liver cyst aspirator |
| CN202020723U (en) * | 2011-03-28 | 2011-11-02 | 徐宁 | Drainage apparatus for thoracic cavity |
| CN202078341U (en) * | 2011-05-25 | 2011-12-21 | 李再清 | Disposable multifunctional medical specimen collection device |
-
2012
- 2012-07-31 CN CN2012102675799A patent/CN102743194A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87215978U (en) * | 1987-12-01 | 1988-07-13 | 苏州吴县高分子医疗器械厂 | Double sheathed negative pressure lavaging and drainage tube |
| US5083561A (en) * | 1990-06-14 | 1992-01-28 | Russo Ronald D | Tracheal suction catheter |
| US5083561B1 (en) * | 1990-06-14 | 1993-05-18 | D. Russo Ronald | Tracheal suction catheter |
| US5836918A (en) * | 1995-06-01 | 1998-11-17 | Dondlinger; Steven C. | Sleeved suction device |
| CN101274111A (en) * | 2008-04-07 | 2008-10-01 | 朱国华 | Electric liver cyst aspirator |
| CN202020723U (en) * | 2011-03-28 | 2011-11-02 | 徐宁 | Drainage apparatus for thoracic cavity |
| CN202078341U (en) * | 2011-05-25 | 2011-12-21 | 李再清 | Disposable multifunctional medical specimen collection device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895004A (en) * | 2012-10-26 | 2013-01-30 | 中国人民解放军第三军医大学第二附属医院 | Cannula used for experimental animal bronchoalveolar lavage |
| CN102895004B (en) * | 2012-10-26 | 2014-11-12 | 中国人民解放军第三军医大学第二附属医院 | Cannula used for experimental animal bronchoalveolar lavage |
| CN105424917A (en) * | 2016-01-16 | 2016-03-23 | 刘静 | Special component for cell secretion test device |
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Application publication date: 20121024 |