CN107617133B - Oxygenation disconnect-type bronchoalveolar lavage fluid collection device - Google Patents
Oxygenation disconnect-type bronchoalveolar lavage fluid collection device Download PDFInfo
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Abstract
The invention discloses an oxygenation separation type bronchoalveolar lavage fluid collecting device which mainly comprises a lavage tube, a normal saline container, a control device and a collecting container; the normal saline is sprayed out from the pipe orifice and the side wall hole, and is extruded and washed in a multi-directional and three-dimensional manner, so that the washing effect is enhanced, the pressure valve is a one-way pressure liquid outlet valve, the washing and the recovery are independently completed, and the normal saline cannot flow backwards; the pressure reducing valve is used for buffering and reducing the pressure of the received oxygen, so that the oxygen is prevented from being overlarge and can be safely used by a patient; retrieve the piston through manual control in the collection container, the lavage liquid that will collect passes through the filter screen and filters, effectively gets rid of impurity, and the bottom and the collection liquid funnel of collection container are connected, and the liquid outlet controls the collection of lavage liquid sample through going out liquid switch, can directly carry out multiple sample collection, and the sample is convenient, easy operation at the collection in-process.
Description
Technical Field
The invention relates to the technical field of bronchoalveolar lavage, in particular to an oxygenation separation type bronchoalveolar lavage fluid collecting device.
Background
Bronchoalveolar lavage uses a fiber bronchoscope to repeatedly lavage and recover the lung segment or sub-lung segment below the bronchus by sterile normal saline, and a series of detection and analysis are carried out on the lung segment or sub-lung segment, so that the property characteristics and the activity degree of the lower respiratory tract lesion are obtained, and the determination of diagnosis is facilitated. The kit is suitable for the etiological diagnosis of lung infection, particularly immune damage and immunodeficiency lung infection, the cytological diagnosis of diffuse and peripheral lung tumors, and the diagnosis, treatment, curative effect and prognosis estimation of interstitial lung diseases, such as sarcoidosis, idiopathic pulmonary interstitial fibrosis, exogenous allergic alveolitis, pulmonary alveolar proteinosis, collagen vascular pulmonary fibrosis and the like.
Current methods of irrigation mainly include: 1. whole lung lavage: can be used for treating pulmonary alveolar proteinosis, silicosis, pulmonary alveolar microlithosis, and asthma. 2. Lung segment lavage: the kit is mainly used for diagnosing diffuse interstitial pulmonary fibrosis, asbestosis and pneumocystis carinii pneumonia, and has important value for diagnosing diffuse alveolar carcinoma. Small volume lung lavage also plays an important role in the treatment of pneumoconiosis. During the use process, the indications must be strictly controlled, and the elderly and the patients with body failure should be monitored by electrocardiogram and percutaneous blood oxygen saturation detection; in the operation, the nasal catheter is used for oxygen inhalation or high-frequency ventilation and oxygen supply in bronchoalveolar lavage; strict aseptic operation in the operation is performed to prevent secondary infection; operating properly as required, a qualified lavage fluid should be recovered in a specified amount without blood (red blood cell count < 10%) and without multiple epithelial cells (< 3%); the lavage liquid is obtained and then is sent for detection as early as possible; after the examination, the patients with fever, hemorrhage, pulmonary infection, bronchospasm, etc. are treated accordingly.
At present, the bronchoalveolar lavage fluid is directly extracted through a needle tube, the operation difficulty is high, the lavage fluid collected by the existing bronchoalveolar lavage fluid collector can be sampled and detected after being filtered, the alveolar lavage recovery rate is low, and infection and other lesions are easily spread; when a plurality of groups of samples need to be continuously taken, the collecting device needs to be frequently replaced, the process is complex, and great pain is caused to a patient.
Disclosure of Invention
In view of the above technical problems, the present invention provides a bronchoalveolar lavage fluid collecting device capable of selectively adding oxygen to separate lavage from recovery.
The technical scheme of the invention is as follows: an oxygenation separation type bronchoalveolar lavage fluid collecting device mainly comprises a lavage tube, a normal saline container, a control device and a collecting container; the lavage tube is inserted into a bronchoscope catheter of a bronchus, one end of the lavage tube is provided with a tube opening, the outer wall of the lavage tube from the tube opening to the upper part of the lavage tube between 2cm and 3cm is provided with a plurality of side wall holes, the other end of the lavage tube is provided with a connecting pipe fitting, the lavage tube is connected with a control device through the connecting pipe fitting, the outer side of the control device is sequentially provided with a pressure valve, a gas mixing valve and a collecting tube from left to right, the bottom of the pressure valve is connected with a normal saline container, the gas mixing valve is provided with an oxygen tube connecting port, the gas mixing valve is communicated with the lavage tube, the collecting tube is connected with the collecting container, the leftmost end of the inner side of the control device is provided with a liquid separating valve, one end of the liquid separating valve is connected with the connecting pipe fitting, the other end of the liquid separating valve is divided into two parts and is respectively, the upper part of the liquid storage air bag is provided with a pressurizing connecting piece which is fixedly connected with a pressurizing valve, and the recovery inner tube is connected with a collection container through a gas mixing valve; the normal saline container is provided with a connecting rod, a water outlet pipeline, a sealing ring, a water adding funnel, a saline straw and a filtering device, wherein the connecting rod is internally provided with a thread, the upper part of the connecting rod is connected with a pressure valve, the lower part of the connecting rod is connected with the water outlet pipeline, the water outlet pipeline is fixed on the normal saline container through the sealing ring, the saline straw penetrates through the water outlet pipeline and extends into the normal saline container through the sealing ring, the lower end of the saline straw is connected with the filtering device, the side wall of the normal saline container is provided with a liquid level line, the water adding funnel is fixed on the side wall of the normal saline container in an embedded manner, the central position of the water adding funnel is provided with a water adding hole, and the outer; the top of collection container be provided with the filter screen, the top of filter screen be provided with retrieve the piston, the outside of retrieving the piston be provided with the pressurization spanner, the below of collection container be provided with collection liquid funnel, the below of collection liquid funnel be provided with the liquid outlet, the liquid outlet on be provided with out the liquid switch.
Furthermore, the recovery piston is a manual aspirator, the aspirator is provided with an anti-overflow and anti-reflux design, and the maximum true control value is-50 to-100 mmHG; the recovery piston mainly comprises: valve A, piston, depression bar (423), piston outer tube, play liquid hole, valve B, collection liquid funnel, fluid-discharge tube, valve A's the end of intaking with retrieve the inner tube connection, valve A's water outlet end and piston connection, the piston pass through the depression bar and be connected with the pressurization spanner, a plurality of liquid holes of going out are being distributed on the extrusion wall of piston, piston bottom installation valve B, valve B outside parcel piston outer tube, the piston outer tube be connected with collection liquid funnel, collection liquid funnel be connected with the fluid-discharge tube, adopt medical macromolecular material to make, small, light in weight, easy operation.
Furthermore, the volume of the normal saline container is 240-300ml, and the volume of the collecting container is 90-150ml, so that sufficient normal saline can be contained, and the flushing effect can be ensured.
Further, the filtering device mainly comprises: the device comprises a cylindrical filter screen, a conical filter screen and liquid suction holes, wherein the upper end of the cylindrical filter screen is connected with a saline water suction pipe, the lower end of the cylindrical filter screen is connected with the conical filter screen, a plurality of liquid suction holes are distributed in the conical filter screen, and the inner diameter of each liquid suction hole is 0.1-0.3 mm.
Furthermore, the collection of the lavage fluid sample is controlled by the liquid outlet through the liquid outlet switch, and the collected sample can be directly used for bacterial culture, cell detection and biochemical determination.
Furthermore, a pressure reducing valve and a control valve are arranged in the gas mixing valve, the gas inlet end of the pressure reducing valve is connected with the oxygen pipe connector, the gas outlet end of the pressure reducing valve is connected with the control valve, the pressure reducing valve buffers and reduces the pressure of the received oxygen to prevent the oxygen pressure from being overlarge, and the control valve controls the flow of the oxygen by controlling the size of the oxygen channel, so that the oxygen can be safely used by a patient.
Furthermore, the lavage tube is a disposable sterile tube, the diameter of the sterile tube is 1.8-2.4mm, and other bacteria cannot be introduced during use to cause pollution, so that the biochemical detection result is influenced.
Furthermore, the pressurizing valve is a one-way pressurizing liquid outlet valve and is used for injecting the sterile normal saline in the normal saline container into the lavage tube after pressurizing the sterile normal saline through the control pressurizing valve, and the pressure of the pressurizing valve during lavage is 150-2O pressure, and recovering under 6.7-13.3kPa (80-100mmHg) by controlling the pressurizing valve.
The lavage collecting device is preferably carried out under local anesthesia in an operating room in the operation process, the patient is completely awake and can express the mind of the patient, the patient mostly takes the supine position, the muscle of the whole body is relaxed under the low-flow oxygen inhalation and the electrocardiograph monitoring, the patient can breathe smoothly and deeply, and the oxygen can be inhaled into the alveoli easily. The operator enters the lavage tube through the oral cavity or the nasal cavity, enters the trachea through the pharyngeal cavity and the glottis, namely the left bronchus and the right bronchus, and directly reaches the opening of the lung section needing lavage treatment, before the lavage tube enters the glottis through the laryngeal cavity, the swallowing action is avoided, the patient does not speak during the lavage treatment is checked, if cough can be relieved, sputum or secretion in the mouth is wiped by using toilet paper, the normal saline with sterilization at 37 ℃ is added for lavage, 20-30 ml at each time, the lavage tube is injected into the lung alveolus through the lavage tube, the recovery liquid is collected, the lavage is repeatedly carried out until the lavage liquid is completely clear, and the lavage treatment can be stopped by pulling the tube.
Compared with the prior art, the invention has the beneficial effects that:
1. in the lavage process, normal saline is added into the lavage tube through the normal saline container, then the normal saline is sprayed out from the tube opening and the side wall holes, the multi-directional three-dimensional extrusion washing is carried out, the washing effect is enhanced, the washing and the recovery are independently completed during the operation, and the normal saline cannot flow backwards; the liquid separating valve is arranged through double-channel switching to switch the flow channel, so that the pollution of the lavage and recovery pipeline is controlled to the maximum extent, the hidden danger caused by the pollution is avoided, and the reliability is high;
2. a pressure reducing valve and a control valve are arranged in the gas mixing valve, the pressure reducing valve is used for buffering and reducing the received oxygen to prevent the oxygen pressure from being overlarge, and the control valve is used for controlling the oxygen flow by controlling the size of the oxygen channel to ensure that the oxygen can be safely used by a patient;
3. retrieve the piston through manual control in the collection container, the lavage liquid that will collect passes through the filter screen and filters, effectively gets rid of impurity, and the bottom and the collection liquid funnel of collection container are connected, and the liquid outlet controls the collection of lavage liquid sample through going out liquid switch, can directly carry out multiple sample collection, and the sample is convenient, easy operation at the collection in-process.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the gas mixing valve of the present invention;
FIG. 3 is a schematic view of the filter arrangement of the present invention;
FIG. 4 is a schematic view of the recovery piston configuration of the present invention;
wherein, 1-lavage tube, 11-side wall hole, 12-tube mouth, 13-connecting tube, 2-normal saline container, 21-connecting rod, 22-outlet pipeline, 23-sealing ring, 24-liquid level line, 25-water adding hole, 26-sealing head, 27-water adding funnel, 28-saline suction pipe, 29-filtering device, 291-cylinder filter screen, 292-cone filter screen, 293-liquid suction hole, 3-control device, 31-pressure valve, 32-air mixing valve, 321-pressure reducing valve, 322-control valve, 33-oxygen tube connector, 34-collecting tube, 35-liquid separating valve, 36-lavage inner tube, 37-recovery inner tube, 38-pressure connector, 39-liquid storage air bag, 4-collecting container, 41-pressurizing spanner, 42-recovering piston, 421-valve A, 422-piston, 423-pressure rod, 424-piston outer tube, 425-liquid outlet hole, 426-valve B, 427-liquid collecting funnel, 428-liquid outlet tube, 43-filter screen, 44-liquid collecting funnel, 45-liquid outlet switch and 46-liquid outlet.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1: as shown in fig. 1, an oxygenation separated bronchoalveolar lavage fluid collecting device mainly comprises a lavage tube 1, a normal saline container 2, a control device 3 and a collecting container 4;
bronchoscope pipe is inserted to lavage tube 1, the one end of lavage tube 1 sets up mouth of pipe 12, mouth of pipe 12 is provided with side wall hole 11 to on its upper 2 cm's of the outer wall of lavage tube 1, lavage tube 1's the other end is provided with connecting tube spare 13, lavage tube 1 is connected with controlling means 3 through connecting tube spare 13, lavage tube 1 is disposable aseptic tube, aseptic tube's diameter is 1.8mm, can not introduce other bacterium during the use, cause the pollution, thereby influence biochemical testing result.
The outer side of the control device 3 is sequentially provided with a pressurizing valve 31, a gas mixing valve 32 and a collecting pipe 34 from left to right, the bottom of the pressurizing valve 31 is connected with a normal saline container 2, the gas mixing valve 32 is provided with an oxygen pipe connecting port 33, the gas mixing valve 32 is communicated with a lavage pipe 1, the collecting pipe 34 is connected with a collecting container 4, the leftmost end of the inner side of the control device 3 is provided with a liquid separating valve 35, one end of the liquid separating valve 35 is connected with a connecting pipe 13, the other end of the liquid separating valve 35 is divided into two parts and is respectively provided with a lavage inner pipe 36 and a recovery inner pipe 37, the rightmost end of the lavage inner pipe 36 is provided with a liquid storage air bag 39, the upper part of the liquid storage air bag 39 is provided with a pressurizing connecting piece 38, the pressurizing connecting piece 38 is fixedly connected; as shown in fig. 2, a pressure reducing valve 321 and a control valve 322 are disposed in the air mixing valve 32, an air inlet end of the pressure reducing valve 321 is connected to the oxygen pipe connection port 33, an air outlet end of the pressure reducing valve 321 is connected to the control valve 322, the pressure reducing valve 321 performs buffering and pressure reduction on the received oxygen to prevent excessive oxygen pressure, and the control valve 322 controls the flow rate of the oxygen by controlling the size of the oxygen passage, so that the oxygen can be safely used by a patient.
The normal saline container 2 is provided with a connecting rod 21, a water outlet pipeline 22, a sealing ring 23, a water adding funnel 27, a saline suction pipe 28 and a filtering device 29, the connecting rod 21 is internally provided with screw threads, the upper part of the connecting rod 21 is connected with a pressure valve 31, the lower part of the connecting rod 21 is connected with the water outlet pipeline 22, the water outlet pipeline 22 is fixed on the normal saline container 2 through the sealing ring 23, the saline suction pipe 28 is fixed in the water outlet pipeline 22 in a penetrating manner and extends into the normal saline container 2 through the sealing ring 23, the lower end of the saline suction pipe 28 is connected with the filtering device 29, the side wall of the normal saline container 2 is provided with a liquid level line 24, the water adding funnel 27 is fixed on the side wall of the normal saline container 2 in an embedded manner, the central position; the volume of the saline container 2 is 240ml, and the volume of the collecting container 4 is 90ml, and a sufficient amount of saline is contained, thereby ensuring a flushing effect. As shown in fig. 3, the filter device 29 mainly includes: the device comprises a cylindrical filter screen 291, a conical filter screen 292 and liquid suction holes 293, wherein the upper end of the cylindrical filter screen 291 is connected with the saline water suction pipe 28, the lower end of the cylindrical filter screen 291 is connected with the conical filter screen 292, the liquid suction holes 293 are distributed on the conical filter screen 292, and the inner diameter of each liquid suction hole 293 is 0.1 mm.
A filter screen 43 is arranged above the collecting container 4, a recovery piston 42 is arranged above the filter screen 43, a pressurizing wrench 41 is arranged outside the recovery piston 42, a liquid collecting funnel 44 is arranged below the collecting container 4, a liquid outlet 46 is arranged below the liquid collecting funnel 44, and a liquid outlet switch 45 is arranged on the liquid outlet 46. The recovery piston 42 is a manual aspirator which has an anti-overflow and anti-reflux design, and the maximum true control value is-50 mmHG; as shown in fig. 4, the recovery piston 42 mainly includes, inside: the valve A421, the piston 422, the pressure rod 423, the piston outer tube 424, the liquid outlet hole 425, the valve B426, the liquid collecting funnel 427 and the liquid discharging tube 428, the water inlet end of the valve A421 is connected with the recovery inner tube 37, the water outlet end of the valve A421 is connected with the piston 422, the piston 422 is connected with the pressurizing wrench 41 through the pressure rod 423, the liquid outlet hole 425 is distributed on the extrusion wall of the piston 422, the valve B426 is installed at the bottom of the piston 422, the piston outer tube 424 is wrapped outside the valve B426, the piston outer tube 424 is connected with the liquid collecting funnel 427, the liquid collecting funnel 427 is connected with the liquid discharging tube 428, and the liquid collecting funnel 427 is made of medical high polymer materials and has the advantages. The liquid outlet 46 controls the collection of the lavage liquid sample through the liquid outlet switch 45, and the collected sample can be directly used for bacterial culture, cell detection and biochemical determination.
Wherein, the pressurizing valve 31 is a one-way pressurizing liquid outlet valve and is used for injecting the sterile normal saline in the normal saline container into the lavage tube after pressurizing by controlling the pressurizing valve 31, and the pressure of the pressurizing valve 31 during lavage is 150cmH2O pressure, and then the pressure wrench 41 is controlled to recover the pressure, wherein the recovery pressure is 6.7 kPa.
The lavage collecting device is preferably carried out under local anesthesia in an operating room in the operation process, the patient is completely awake and can express the mind of the patient, the patient mostly takes the supine position, the muscle of the whole body is relaxed under the low-flow oxygen inhalation and the electrocardiograph monitoring, the patient can breathe smoothly and deeply, and the oxygen can be inhaled into the alveoli easily. The operator enters the lavage tube through the oral cavity or the nasal cavity, enters the trachea through the pharyngeal cavity and the glottis, namely the left bronchus and the right bronchus, and directly reaches the opening of the lung section needing lavage treatment, before the lavage tube enters the glottis through the laryngeal cavity, the swallowing action is avoided, the patient does not speak during the lavage treatment is checked, if cough can be relieved, sputum or secretion in the mouth is wiped by using toilet paper, the normal saline with sterilization at 37 ℃ is added for lavage, 20ml at each time, the lavage tube is injected into the lung alveolus through the lavage tube, the recovery liquid is collected, the lavage is repeatedly carried out until the lavage liquid is completely clear, and the lavage treatment can be stopped by pulling the tube.
Example 2: as shown in fig. 1, an oxygenation separated bronchoalveolar lavage fluid collecting device mainly comprises a lavage tube 1, a normal saline container 2, a control device 3 and a collecting container 4;
bronchoscope pipe is inserted to lavage tube 1, the one end of lavage tube 1 sets up mouth of pipe 12, mouth of pipe 12 is provided with lateral wall hole 11 on its upper 2.5cm lavage tube 1's the outer wall, lavage tube 1's the other end is provided with connects pipe fitting 13, lavage tube 1 is connected with controlling means 3 through connecting pipe fitting 13, lavage tube 1 is disposable aseptic tube, aseptic tube's diameter is 2.1mm, can not introduce other bacterium during the use, cause the pollution, thereby influence biochemical testing result.
The outer side of the control device 3 is sequentially provided with a pressurizing valve 31, a gas mixing valve 32 and a collecting pipe 34 from left to right, the bottom of the pressurizing valve 31 is connected with a normal saline container 2, the gas mixing valve 32 is provided with an oxygen pipe connecting port 33, the gas mixing valve 32 is communicated with a lavage pipe 1, the collecting pipe 34 is connected with a collecting container 4, the leftmost end of the inner side of the control device 3 is provided with a liquid separating valve 35, one end of the liquid separating valve 35 is connected with a connecting pipe 13, the other end of the liquid separating valve 35 is divided into two parts and is respectively provided with a lavage inner pipe 36 and a recovery inner pipe 37, the rightmost end of the lavage inner pipe 36 is provided with a liquid storage air bag 39, the upper part of the liquid storage air bag 39 is provided with a pressurizing connecting piece 38, the pressurizing connecting piece 38 is fixedly connected; as shown in fig. 2, a pressure reducing valve 321 and a control valve 322 are disposed in the air mixing valve 32, an air inlet end of the pressure reducing valve 321 is connected to the oxygen pipe connection port 33, an air outlet end of the pressure reducing valve 321 is connected to the control valve 322, the pressure reducing valve 321 performs buffering and pressure reduction on the received oxygen to prevent excessive oxygen pressure, and the control valve 322 controls the flow rate of the oxygen by controlling the size of the oxygen passage, so that the oxygen can be safely used by a patient.
The normal saline container 2 is provided with a connecting rod 21, a water outlet pipeline 22, a sealing ring 23, a water adding funnel 27, a saline suction pipe 28 and a filtering device 29, the connecting rod 21 is internally provided with screw threads, the upper part of the connecting rod 21 is connected with a pressure valve 31, the lower part of the connecting rod 21 is connected with the water outlet pipeline 22, the water outlet pipeline 22 is fixed on the normal saline container 2 through the sealing ring 23, the saline suction pipe 28 is fixed in the water outlet pipeline 22 in a penetrating manner and extends into the normal saline container 2 through the sealing ring 23, the lower end of the saline suction pipe 28 is connected with the filtering device 29, the side wall of the normal saline container 2 is provided with a liquid level line 24, the water adding funnel 27 is fixed on the side wall of the normal saline container 2 in an embedded manner, the central position; the volume of the saline container 2 is 270ml, and the volume of the collecting container 4 is 120ml, and a sufficient amount of saline is contained, thereby ensuring a flushing effect. As shown in fig. 3, the filter device 29 mainly includes: the device comprises a cylindrical filter screen 291, a conical filter screen 292 and liquid suction holes 293, wherein the upper end of the cylindrical filter screen 291 is connected with the saline water suction pipe 28, the lower end of the cylindrical filter screen 291 is connected with the conical filter screen 292, the liquid suction holes 293 are distributed on the conical filter screen 292, and the inner diameter of each liquid suction hole 293 is 0.2 mm.
A filter screen 43 is arranged above the collecting container 4, a recovery piston 42 is arranged above the filter screen 43, a pressurizing wrench 41 is arranged outside the recovery piston 42, a liquid collecting funnel 44 is arranged below the collecting container 4, a liquid outlet 46 is arranged below the liquid collecting funnel 44, and a liquid outlet switch 45 is arranged on the liquid outlet 46. The recovery piston 42 is a manual aspirator which has an anti-overflow and anti-reflux design, and the maximum true control value is-75 mmHG; as shown in fig. 4, the recovery piston 42 mainly includes, inside: the valve A421, the piston 422, the pressure rod 423, the piston outer tube 424, the liquid outlet hole 425, the valve B426, the liquid collecting funnel 427 and the liquid discharging tube 428, the water inlet end of the valve A421 is connected with the recovery inner tube 37, the water outlet end of the valve A421 is connected with the piston 422, the piston 422 is connected with the pressurizing wrench 41 through the pressure rod 423, the liquid outlet hole 425 is distributed on the extrusion wall of the piston 422, the valve B426 is installed at the bottom of the piston 422, the piston outer tube 424 is wrapped outside the valve B426, the piston outer tube 424 is connected with the liquid collecting funnel 427, the liquid collecting funnel 427 is connected with the liquid discharging tube 428, and the liquid collecting funnel 427 is made of medical high polymer materials and has the advantages. The liquid outlet 46 controls the collection of the lavage liquid sample through the liquid outlet switch 45, and the collected sample can be directly used for bacterial culture, cell detection and biochemical determination.
Wherein, the pressurizing valve 31 is a one-way pressurizing liquid outlet valve and is used for injecting the sterile normal saline in the normal saline container into the lavage tube after pressurizing by controlling the pressurizing valve 31, and the pressure of the pressurizing valve 31 during lavage is 170cmH2O pressure, and then the pressure wrench 41 is controlled to recover the pressure at 10 kPa.
The lavage collecting device is preferably carried out under local anesthesia in an operating room in the operation process, the patient is completely awake and can express the mind of the patient, the patient mostly takes the supine position, the muscle of the whole body is relaxed under the low-flow oxygen inhalation and the electrocardiograph monitoring, the patient can breathe smoothly and deeply, and the oxygen can be inhaled into the alveoli easily. The operator enters the lavage tube through the oral cavity or the nasal cavity, enters the trachea through the pharyngeal cavity and the glottis, namely the left bronchus and the right bronchus, and directly reaches the opening of the lung section needing lavage treatment, before the lavage tube enters the glottis through the laryngeal cavity, the swallowing action is avoided, the patient does not speak during the lavage treatment is checked, if cough can be relieved, sputum or secretion in the mouth is wiped by using toilet paper, the 37 ℃ sterilized normal saline is added for lavage, 25ml is injected into the lung alveolus through the lavage tube every time, the recovery liquid is collected, the lavage is repeatedly carried out until the lavage liquid is completely clear, and the lavage treatment can be stopped by pulling the tube.
Example 3: as shown in fig. 1, an oxygenation separated bronchoalveolar lavage fluid collecting device mainly comprises a lavage tube 1, a normal saline container 2, a control device 3 and a collecting container 4;
bronchoscope pipe is inserted to lavage tube 1, the one end of lavage tube 1 sets up mouth of pipe 12, mouth of pipe 12 is provided with side wall hole 11 to on its upper portion 3 cm's the outer wall of lavage tube 1, lavage tube 1's the other end is provided with connecting tube spare 13, lavage tube 1 is connected with controlling means 3 through connecting tube spare 13, lavage tube 1 is disposable aseptic tube, aseptic tube's diameter is 2.4mm, can not introduce other bacterium during the use, cause the pollution, thereby influence biochemical testing result.
The outer side of the control device 3 is sequentially provided with a pressurizing valve 31, a gas mixing valve 32 and a collecting pipe 34 from left to right, the bottom of the pressurizing valve 31 is connected with a normal saline container 2, the gas mixing valve 32 is provided with an oxygen pipe connecting port 33, the gas mixing valve 32 is communicated with a lavage pipe 1, the collecting pipe 34 is connected with a collecting container 4, the leftmost end of the inner side of the control device 3 is provided with a liquid separating valve 35, one end of the liquid separating valve 35 is connected with a connecting pipe 13, the other end of the liquid separating valve 35 is divided into two parts and is respectively provided with a lavage inner pipe 36 and a recovery inner pipe 37, the rightmost end of the lavage inner pipe 36 is provided with a liquid storage air bag 39, the upper part of the liquid storage air bag 39 is provided with a pressurizing connecting piece 38, the pressurizing connecting piece 38 is fixedly connected; as shown in fig. 2, a pressure reducing valve 321 and a control valve 322 are disposed in the air mixing valve 32, an air inlet end of the pressure reducing valve 321 is connected to the oxygen pipe connection port 33, an air outlet end of the pressure reducing valve 321 is connected to the control valve 322, the pressure reducing valve 321 performs buffering and pressure reduction on the received oxygen to prevent excessive oxygen pressure, and the control valve 322 controls the flow rate of the oxygen by controlling the size of the oxygen passage, so that the oxygen can be safely used by a patient.
The normal saline container 2 is provided with a connecting rod 21, a water outlet pipeline 22, a sealing ring 23, a water adding funnel 27, a saline suction pipe 28 and a filtering device 29, the connecting rod 21 is internally provided with screw threads, the upper part of the connecting rod 21 is connected with a pressure valve 31, the lower part of the connecting rod 21 is connected with the water outlet pipeline 22, the water outlet pipeline 22 is fixed on the normal saline container 2 through the sealing ring 23, the saline suction pipe 28 is fixed in the water outlet pipeline 22 in a penetrating manner and extends into the normal saline container 2 through the sealing ring 23, the lower end of the saline suction pipe 28 is connected with the filtering device 29, the side wall of the normal saline container 2 is provided with a liquid level line 24, the water adding funnel 27 is fixed on the side wall of the normal saline container 2 in an embedded manner, the central position; the volume of the saline container 2 is 300ml, and the volume of the collecting container 4 is 150ml, and a sufficient amount of saline is contained, thereby ensuring a flushing effect. As shown in fig. 3, the filter device 29 mainly includes: the device comprises a cylindrical filter screen 291, a conical filter screen 292 and liquid suction holes 293, wherein the upper end of the cylindrical filter screen 291 is connected with the saline water suction pipe 28, the lower end of the cylindrical filter screen 291 is connected with the conical filter screen 292, the liquid suction holes 293 are distributed on the conical filter screen 292, and the inner diameter of each liquid suction hole 293 is 0.3 mm.
A filter screen 43 is arranged above the collecting container 4, a recovery piston 42 is arranged above the filter screen 43, a pressurizing wrench 41 is arranged outside the recovery piston 42, a liquid collecting funnel 44 is arranged below the collecting container 4, a liquid outlet 46 is arranged below the liquid collecting funnel 44, and a liquid outlet switch 45 is arranged on the liquid outlet 46. The recovery piston 42 is a manual aspirator which has an anti-overflow and anti-reflux design, and the maximum true control value is-100 mmHG; as shown in fig. 4, the recovery piston 42 mainly includes, inside: the valve A421, the piston 422, the pressure rod 423, the piston outer tube 424, the liquid outlet hole 425, the valve B426, the liquid collecting funnel 427 and the liquid discharging tube 428, the water inlet end of the valve A421 is connected with the recovery inner tube 37, the water outlet end of the valve A421 is connected with the piston 422, the piston 422 is connected with the pressurizing wrench 41 through the pressure rod 423, the liquid outlet hole 425 is distributed on the extrusion wall of the piston 422, the valve B426 is installed at the bottom of the piston 422, the piston outer tube 424 is wrapped outside the valve B426, the piston outer tube 424 is connected with the liquid collecting funnel 427, the liquid collecting funnel 427 is connected with the liquid discharging tube 428, and the liquid collecting funnel 427 is made of medical high polymer materials and has the advantages. The liquid outlet 46 controls the collection of the lavage liquid sample through the liquid outlet switch 45, and the collected sample can be directly used for bacterial culture, cell detection and biochemical determination.
Wherein, the pressurizing valve 31 is a one-way pressurizing liquid outlet valve and is used for injecting the sterile normal saline in the normal saline container into the lavage tube after pressurizing by controlling the pressurizing valve, and the pressure of the pressurizing valve 31 during lavage is 190cmH2O pressure, and then the pressure wrench 41 is controlled to recover the pressure at 13.3kPa
The lavage collecting device is preferably carried out under local anesthesia in an operating room in the operation process, the patient is completely awake and can express the mind of the patient, the patient mostly takes the supine position, the muscle of the whole body is relaxed under the low-flow oxygen inhalation and the electrocardiograph monitoring, the patient can breathe smoothly and deeply, and the oxygen can be inhaled into the alveoli easily. The operator enters the lavage tube through the oral cavity or the nasal cavity, enters the trachea through the pharyngeal cavity and the glottis, namely the left bronchus and the right bronchus, and directly reaches the opening of the lung section needing lavage treatment, before the lavage tube enters the glottis through the laryngeal cavity, the swallowing action is avoided, the patient does not speak during the lavage treatment is checked, if cough can be relieved, sputum or secretion in the mouth is wiped by using toilet paper, the normal saline with sterilization at 37 ℃ is added for lavage, 30ml at each time, the lavage tube is injected into the lung alveolus through the lavage tube, the recovery liquid is collected, the lavage is repeatedly carried out until the lavage liquid is completely clear, and the lavage treatment can be stopped by pulling the tube.
In the use process of the invention, the sealing head 26 is firstly opened, then the normal saline is added into the water adding funnel 27 through the water adding hole 25, the volume in the normal saline container 2 reaches 80% of the total volume by observing the liquid level line 24, then the external oxygen tube is connected with the oxygen tube connecting port 33, the pressure valve 31 is extruded to flush the normal saline, the flushing condition is observed according to the bronchoscope of the visible bronchus, after the flushing is finished, the pressure wrench 41 is manually adjusted to act on the recovery piston 42, the lavage fluid is collected into the collection container 4, and the sampling is carried out by adjusting the liquid outlet switch 45 arranged on the liquid outlet 46.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. An oxygenation separation type bronchoalveolar lavage fluid collecting device is characterized by mainly comprising a lavage tube (1), a normal saline container (2), a control device (3) and a collecting container (4); the bronchoscope catheter is characterized in that the lavage tube (1) is inserted into a bronchus, a tube opening (12) is arranged at one end of the lavage tube (1), a plurality of side wall holes (11) are arranged on the outer wall of the lavage tube (1) from the tube opening (12) to the upper part of the lavage tube (1) between 2cm and 3cm, a connecting pipe fitting (13) is arranged at the other end of the lavage tube (1), the lavage tube (1) is connected with the control device (3) through the connecting pipe fitting (13), a pressurizing valve (31), a gas mixing valve (32) and a collecting tube (34) are sequentially arranged on the outer side of the control device (3) from left to right, the bottom of the pressurizing valve (31) is connected with a normal saline container (2), an oxygen tube (33) is arranged on the gas mixing valve (32), the collecting tube (34) is connected with a collecting container (4), and a liquid distributing valve (35) is arranged at the, one end of the liquid distribution valve (35) is connected with the connecting pipe fitting (13), the other end of the liquid distribution valve (35) is divided into two parts, a lavage inner pipe (36) and a recovery inner pipe (37) are respectively arranged, the rightmost end of the lavage inner pipe (36) is provided with a liquid storage air bag (39), the upper part of the liquid storage air bag (39) is provided with a pressurizing connecting piece (38), the pressurizing connecting piece (38) is fixedly connected with the pressurizing valve (31), and the recovery inner pipe (37) is connected with the collection container (4) through the gas mixing valve (32); the saline container (2) is provided with a connecting rod (21), a water outlet pipeline (22), a sealing ring (23), a water adding funnel (27), a saline suction pipe (28) and a filtering device (29), the connecting rod (21) is internally provided with threads, the upper part of the connecting rod (21) is connected with a pressure valve (31), the lower part of the connecting rod (21) is connected with the water outlet pipeline (22), the water outlet pipeline (22) is fixed on the saline container (2) through the sealing ring (23), the saline suction pipe (28) is fixed in the water outlet pipeline (22) in a penetrating way and extends into the saline container (2) through the sealing ring (23), the lower end of the saline suction pipe (28) is connected with the filtering device (29), the side wall of the saline container (2) is provided with a liquid level line (24), and the water adding funnel (27) is fixed on the side wall of the saline container (2) in an embedded way, a water adding hole (25) is formed in the center of the water adding funnel (27), and a sealing head (26) is arranged on the outer side of the water adding hole (25); the top of collection container (4) be provided with filter screen (43), the top of filter screen (43) be provided with recovery piston (42), the outside of recovery piston (42) be provided with pressurization spanner (41), the below of collection container (4) be provided with album liquid funnel (44), the below of collection liquid funnel (44) be provided with liquid outlet (46), liquid outlet (46) on be provided with liquid switch (45).
2. The oxygenation-separated bronchoalveolar lavage fluid collection device of claim 1, wherein the recovery piston (42) is a manual aspirator having an anti-overflow and anti-reflux design with a maximum true control value of-50 to-100 mmHG; the recovery piston (42) includes, inside, mainly: the piston comprises a valve A (421), a piston (422), a pressing rod (423), a piston outer tube (424), liquid outlet holes (425), a valve B (426), a liquid collecting funnel (427) and a liquid discharging tube (428), wherein the water inlet end of the valve A (421) is connected with a recovery inner tube (37), the water outlet end of the valve A (421) is connected with the piston (422), the piston (422) is connected with a pressurizing wrench (41) through the pressing rod (423), a plurality of liquid outlet holes (425) are distributed on the extrusion wall of the piston (422), the valve B (426) is installed at the bottom of the piston (422), the piston outer tube (424) is wrapped outside the valve B (426), the piston outer tube (424) is connected with the liquid collecting funnel (427) of the recovery piston (42), and the liquid collecting funnel (427) of the recovery piston (42) is connected with the liquid discharging tube (428).
3. An oxygenated split bronchoalveolar lavage fluid collecting device as claimed in claim 1, characterized in that said filtering means (29) essentially comprises: cylinder filter screen (291), circular cone filter screen (292), imbibition hole (293), cylinder filter screen (291) upper end be connected with salt solution straw (28), cylinder filter screen (291) lower extreme is connected with circular cone filter screen (292), circular cone filter screen (292) on distribute a plurality of imbibition holes (293), the internal diameter of imbibition hole (293) be 0.1-0.3 mm.
4. An oxygenated split bronchoalveolar lavage fluid collecting device as claimed in claim 1, wherein the fluid outlet (46) controls the collection of a lavage fluid sample by means of a fluid outlet switch (45).
5. The oxygenation-separated bronchoalveolar lavage fluid collecting device as claimed in claim 1, wherein a pressure reducing valve (321) and a control valve (322) are arranged in the air mixing valve (32), and an air inlet end of the pressure reducing valve (321) is connected with the oxygen pipe connecting port (33).
6. An oxygenated split bronchoalveolar lavage fluid collecting device as claimed in claim 1, wherein the lavage tube (1) is a disposable sterile tube having a diameter of 1.8 to 2.4 mm.
7. An oxygenated split bronchoalveolar lavage fluid collecting device according to claim 1, characterized in that the lavage tube (1) is a sterile tube.
8. The oxygenation-separated bronchoalveolar lavage fluid collection device as claimed in claim 1, wherein the volume of the physiological saline solution container (2) is 240ml and 300ml, and the volume of the collection container (4) is 90-150 ml.
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| CN201710722471.7A CN107617133B (en) | 2017-08-22 | 2017-08-22 | Oxygenation disconnect-type bronchoalveolar lavage fluid collection device |
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| CN201710722471.7A CN107617133B (en) | 2017-08-22 | 2017-08-22 | Oxygenation disconnect-type bronchoalveolar lavage fluid collection device |
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| CN107617133B true CN107617133B (en) | 2020-04-17 |
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| CN113546458A (en) * | 2020-04-24 | 2021-10-26 | 南阳市中心医院 | Oxygen-adding separation type bronchial lavage liquid collecting device for outside |
| CN114652360B (en) * | 2022-01-27 | 2023-04-18 | 常州乐奥医疗科技股份有限公司 | Alveolar lavage device |
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| CN208301921U (en) * | 2017-08-22 | 2019-01-01 | 李堃 | A kind of separate type BAL fluid collection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2008139847A1 (en) * | 2007-04-23 | 2010-07-29 | 株式会社カネカ | Medical tube |
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| CN102264404A (en) * | 2008-12-23 | 2011-11-30 | 美国政府卫生和公众服务部疾病预防和控制中心 | Lung aerosol collection device |
| CN202761334U (en) * | 2012-09-28 | 2013-03-06 | 范忠宇 | Bronchoavleolar lavage fluid collector |
| CN204260767U (en) * | 2014-09-19 | 2015-04-15 | 刘豹 | A kind of bronchoalveolar lavage device with sacculus |
| CN204765736U (en) * | 2015-06-03 | 2015-11-18 | 兰州大学第一医院 | Device is left and taken to alveolus lavage liquid |
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