CN101518660A - Anhydrous mute pleural cavity closed drainage device - Google Patents
Anhydrous mute pleural cavity closed drainage device Download PDFInfo
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- CN101518660A CN101518660A CN200810062203A CN200810062203A CN101518660A CN 101518660 A CN101518660 A CN 101518660A CN 200810062203 A CN200810062203 A CN 200810062203A CN 200810062203 A CN200810062203 A CN 200810062203A CN 101518660 A CN101518660 A CN 101518660A
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Abstract
An anhydrous mute pleural cavity closed drainage device comprises a drainage bottle, a unidirectional exhaust valve, an air bag component and a pressure limiting valve; wherein the air inlet of the unidirectional exhaust valve is connected with the air outlet of the drainage bottle in a sealed way, the air outlet thereof is connected with the air bag component by a first drainage tube, the air bag component comprises an air bag and a transparent barrel, the air bag is positioned inside the transparent barrel, the upper connecting port and the lower connecting port of the transparent barrel are respectively connected with the first drainage tube and a second drainage tube in a sealed way, the side wall of the transparent barrel is provided with an air inlet port, one end of the pressure limiting valve is connected with the lower connecting port of the air bag component by the second drainage tube, and the other end of the pressure limiting valve is connected with a third drainage tube. The drainage device is applicable to both continuous negative pressure suction pleural cavity closed drainage and normal pressure pleural cavity closed drainage; and is suitable not only for treatment of pneumothorax, but also for treatment of pleural effusion.
Description
Technical field
The present invention relates to a kind of pleural cavity closed drainage device, relate in particular to a kind of anhydrous mute pleural cavity closed drainage device.
Background technology
Closed drainage of pleural cavity is the conventional therapy means of pneumothorax.Traditional thoracic duction instrument adopts normal pressure or continuous negative pressure suction water seal enclosed drainage method, there is following defective in this device: 1, use the exhaust velocity that water seal control attracts negative pressure and aerothorax, the gas bubble that water liquid produces of flowing through produces noise inevitably, when particularly pneumothorax is treated in continuous negative pressure suction, the diagnosis and treatment environment that noise corrupted is quiet, not only influence patient's psychology and rest, extremely it disturbs ward mate on every side especially; 2, hydrolock chest drainage is toppled over as drainage system and can be caused the reverse thoracic cavity that enters of ambient atmos, the life security that jeopardizes the patient; 3, the evaporation of moisture in the hydrolock thoracic duction instrument, can cause attracting negative pressure water seal arrangement hydraulic pressure to descend, cause the fluctuation that attracts negative pressure, the hydraulic pressure that the evaporation of moisture also can cause controlling in the aerothorax velocity of discharge water seal arrangement descends, need often to observe the water yield in the water seal arrangement when therefore using the hydrolock closed drainage of pleural cavity, water filling in time, to keep the stable attraction negative pressure and the velocity of discharge of aerothorax, water filling can increase nosocomial infection chance and nursing work load repeatedly in addition; 4, during continuous negative pressure suction, the pneumothorax pneumatosis is absorbed speed can not keep dynamic equilibrium with generation speed, and the danger of inhaling was arranged; 5, device is moisture, need prevent again toppling over, and carries inconvenience.
Summary of the invention
Technical problem to be solved by this invention provides a kind of anhydrous mute pleural cavity closed drainage device, to overcome the defective that traditional thoracic duction instrument exists.
The technology used in the present invention solution is: a kind of anhydrous mute pleural cavity closed drainage device, comprise the drainage bottle and the one-way exhaust valve that are connected with intrathoracic drain, one-way exhaust valve comprises valve body, the air inlet and the drainage bottle of valve body are tightly connected, the gas outlet of valve body connects first drainage tube, is provided with sealing damping diaphragm and ventilative sponge in the valve body.One-way exhaust valve guarantees that gas can only prevent the reverse breast chamber that enters of air by the unidirectional discharge outward in thoracic cavity; The light drag energy that sealing damping diaphragm and ventilative sponge provide prevents the too fast discharge of thoracic cavity air-flow.
One of further technical scheme of the present invention is: be provided with air-bag module, discharge situation with indication thoracic cavity air-flow, and keep the discharge of vacuum suction air-flow and the dynamic equilibrium that aerothorax produces.Air-bag module comprises air bag and transparent cylindrical shell, and air bag places in the transparent cylindrical shell, and the last lower interface of transparent cylindrical shell is tightly connected with first drainage tube and second drainage tube respectively, and the sidewall of transparent cylindrical shell is provided with air inlet.
Two of the further technical scheme of the present invention is: be provided with pressure limiting valve, pressure limiting valve plays a part pressure limiting and whether indication attracts negative pressure suitable.One end of pressure limiting valve is connected with the air-bag module lower interface by second drainage tube, and the other end of pressure limiting valve connects the 3rd drainage tube.
The beneficial effect that the present invention has: broken the mode that traditional closed drainage of pleural cavity needs water seal, got rid of the defective of existing hydrolock pleural cavity closed drainage device, implemented need not the chest drainage technology of water seal, aerothorax discharge dynamic equilibrium, realized the running environment of the anhydrous mute (noiseless) of closed drainage of pleural cavity, guarantee peaceful medical environment, avoid the iatrogenic pollution of water filling, alleviated nursery work; At field operations or disaster environment, this device need not carry or seek medicinal water, and the rescue that more traditional pleural cavity closed drainage device has more special environment is worth; This device material source is abundant, with low cost simultaneously, is easy to make, and is practical light, is easy to carry about with one.Both be applicable to the continuous negative pressure suction closed thoracic, be applicable to the normal pressure closed drainage of pleural cavity again; Both be applicable to the treatment of pneumothorax, be applicable to the treatment of hydrothorax again; Having the good clinical medical application is worth.
The invention will be further described below in conjunction with the drawings and the specific embodiments.
Description of drawings
Accompanying drawing is the overall structure sketch map of an embodiment of the present invention.
Among the figure: 1, drainage bottle, 2, one-way exhaust valve, 2.1, valve body, 2.2, the latex diaphragm, 2.3, sealing damping diaphragm, 2.4, ventilative sponge, 2.5, sealing ring, 3, air-bag module, 3.1, transparent cylindrical shell, 3.2, latex balloon, 3.3 sealing rings, 3.4, air inlet, 4, pressure limiting valve, 4.1, ball float, 4.2, inner core, 4.3, the decompression sponge sheet, 4.4, urceolus, 4.5, the groove sealing ring, 4.6, no groove sealing ring, 5, negative pressure switch, 6.1, first drainage tube, 6.2, second drainage tube, 6.3, the 3rd drainage tube, 7.1, joint, 7.2, the valve body joint, 7.3, interface on the cylindrical shell, 7.4, the cylindrical shell lower interface, 8, pipe detector, 9, fixing cingulum, 10, the chest drainage pipe joint, 11, the device fixing hole, 12, fixing head, 13, the three way cock, 13.1, nut.
The specific embodiment
As shown in drawings, a kind of embodiment of anhydrous mute pleural cavity closed drainage device of the present invention mainly comprises members such as drainage bottle 1, one-way exhaust valve 2, air-bag module 3, pressure limiting valve assembly 4.
Be respectively equipped with the chest drainage pipe joint 10 and the joint 7.1 that is used to be connected the one-way exhaust valve air inlet that are used to connect closed thoracic drainage tube above the drainage bottle 1, drainage bottle 1 is used to store the liquid air storage.Present embodiment, drainage bottle 1 long 13cm, wide 5.0cm, high 18cm, maximum storage liquid capacity 1000mL, the external diameter 0.8cm of chest drainage pipe joint 10, joint 7.1, the internal diameter 0.6cm of allowing.
One-way exhaust valve 2 comprises the tubular valve body of being made by duroplasts 2.1, the air inlet of tubular valve body 2.1 is tightly connected by the gas outlet of joint 7.1 with drainage bottle 1, the gas outlet of tubular valve body 2.1 connects first drainage tube 6.1 by valve body joint 7.2, two ends are provided with sealing ring 2.5 about in the tubular valve body 2.1, to guarantee to connect sealing property; Be provided with sealing damping diaphragm 2.3 and ventilative sponge 2.4 in the tubular valve body 2.1; Valve body 2.1 lower seal ends also are provided with latex diaphragm 2.2, and latex diaphragm 2.2 is circular, and central authorities are circular hole, and latex diaphragm 2.2 bottoms are flat to stick on the sealing ring 2.5, to improve sealing property; Sealing damping diaphragm 2.3 bottoms are the orthogonal photoplate of circle, the parallel clipping edge of photoplate two lateral extent diaphragm edge 0.2cm, the circular lightweight that photoplate central authorities are sticking is moulded sheet firmly, and respectively sticking 1 square lightweight symmetrically moulds sheet to center line position, photoplate two circular arc limit firmly; The central authorities of ventilative sponge 2.4 are provided with the turbination air flue, and the elasticity of ventilative sponge guarantees latex diaphragm-diaphragm-operated separation of sealing damping and closure, thereby guarantee that air-flow can only be by the outside unidirectional discharge in thoracic cavity.The one-way exhaust valve operation principle is: the air-flow that discharge in the thoracic cavity is discharged through the central circular hole of latex diaphragm 2.2, put forth effort on sealing damping diaphragm 2.3, jack-up sealing damping diaphragm 2.3, thereby make sealing damping diaphragm separate with the latex diaphragm, air-flow is entered the ventilative duct of ventilative sponge 2.4 swimmingly, and then discharge, the square lightweight that seals 2.3 liang of arc edges of damping diaphragm this moment is moulded sheet firmly and is played the damping noise reduction effect; And the negative pressure that produces when air-breathing impels ventilative sponge 2.4 times swollen, the air-flow that ventilative simultaneously sponge 2.4 upper and lower side pressure reduction produce is through the air flue of ventilative sponge, mainly flow to the vertex of a cone (sponge lower end) by circular cone bottom surface (sponge upper end) through central inverted cone air flue, the turbination air flue makes air-flow quicken reinforcing and acts on sealing damping diaphragm 2.3, press off the lacuna between sealing damping diaphragm 2.3 and the latex diaphragm 2.2, thereby stop the reverse thoracic cavity that enters of extraneous air-flow, the circular lightweight that seal damping diaphragm 2.3 central authorities this moment is moulded sheet firmly and is played the blocking-up negative pressure and conduct to latex balloon 3.2 in the air-bag module 3, prevents the air-breathing activity that influences latex balloon.In the present embodiment, the long 3.0cm of tubular valve body, external diameter 2.2cm, internal diameter 2.0cm, the interface diameter 0.8cm of upper and lower side; Common connection head length 2.0cm external diameter 0.8cm internal diameter 0.6cm; Latex diaphragm 2.3 thick 0.02cm, diameter 2.0cm, the diameter 0.6cm of central, circular air-vent; Ventilative sponge 2.4 thick 1.0cm, diameter 2.0cm, central inverted cone air flue, conical bottom diameter 0.8cm; Circular lightweight is moulded sheet diameter 1.0cm, thick 0.02cm firmly; The square lightweight is moulded the thick 0.02cm of sheet length of side 0.2cm firmly.
Air-bag module 3 comprises transparent cylindrical shell 3.1 and the latex balloon 3.2 that transparent plastic is made, latex balloon 3.2 places in the transparent cylindrical shell 3.1, lower interface 7.3,7.4 is tightly connected with first drainage tube 6.1 and second drainage tube 6.2 respectively by joint on the transparent cylindrical shell 3.1, have sealing ring 3.3 in the cylindrical shell 3.1, the two ends of latex balloon 3.2 adhere to the lateral border of sealing ring 3.3, the sidewall of transparent cylindrical shell is provided with air inlet 3.4, and air-bag module 3 can be fixed on the fixing head 12 by cingulum 9.Playing a part the indication thoracic cavity during no continuous negative pressure suction has airless to discharge, and has the suction avoided simultaneously, guarantees the generation of aerothorax and the relative equilibrium of the speed of absorption; Air inlet 3.4 play keep barrel-latex balloon 3.2 between chamber air pressure and atmospheric pressure balance each other.Each parts can adopt following size in the present embodiment: mould the tube external diameter 1.7cm of tube 3.1 firmly, internal diameter 1.5cm, long 6.0cm; The long 2.0cm of diameter 0.8cm joint of last lower interface, external diameter 0.8cm, internal diameter 0.6cm; Latex balloon internal diameter 1.4cm, wall thickness 0.02cm, long 6.0cm; Upper-lower seal circle external diameter 1.5cm, internal diameter 0.6cm, thick 0.8cm; Air inlet diameter 0.2cm.
Suitably whether pressure limiting valve assembly 4 is used for pressure limiting and indicates suction pressure, comprise ball float 4.1, inner core 4.2, urceolus 4.4, decompression sponge sheet 4.3, decompression sponge sheet 4.3 places inner core 4.2 tops, attract negative pressure to inhale moving ball float roof pressure sponge sheet, negative pressure is big more, and the pressure that pushes up on the ball float is big more, and the degree of sponge sheet compression is also big more, gas-flow resistance is also big more, is blocked fully until air-flow; Ball float 4.1 is positioned at the below of decompression sponge sheet 4.3; Urceolus 4.4 lower ends and second drainage tube 6.2 are tightly connected, and inner core 4.2 upper ends and the 3rd drainage tube 6.3 are tightly connected; Be provided with negative pressure switch 5 in the 3rd drainage tube 6.3, negative pressure switch 5 is controlled the startup of vacuum suctions and is closed, and common auxiliary adjustment attraction negative pressure makes ball float be positioned at the inner core stage casing and gets final product; The upper and lower side of inner core 4.2 is provided with the sealing ring of its internal diameter less than the ball float external diameter, be the external diameter of the endoporus of sealing ring less than ball float, sealing ring is preferably groove sealing ring 4.5, ball float falls or is identical with groove during come-up, thereby plays a part pressure limiting or prevent that extraneous air-flow is reverse to enter mid-latex air bag; The junction of the urceolus 4.4 and second drainage tube 6.2 is provided with no groove sealing ring 4.6.In the present embodiment, ball float 4.1 is the lightweight foamed plastics material, redness, and heavy 0.1g,, diameter 1.0cm; Inner core 4.2 long 3.0cm, external diameter 1.5cm, internal diameter 1.3cm; Decompression sponge sheet 4.3 thick 0.3cm,, diameter 1.3cm; Urceolus 4.4 long 8.0cm, external diameter 2.2cm, internal diameter 2.0cm; Groove sealing ring 4.5 external diameter 2.0cm, groove external diameter 1.5cm, internal diameter 1.0cm; No groove seals 4.6 external diameter 2.0cm, internal diameter 0.6cm; Negative pressure switch 5 upper end external diameter 0.9cm, internal diameter 0.6cm, lower end external diameter 0.7cm, internal diameter 0.5cm.
Present embodiment, be provided with three way cock 13 between one-way exhaust valve 2 and the air-bag module 3, three way cock 13 upper and lower side is connected with latex air-bag module 3 with one-way exhaust valve 2 respectively by first drainage tube 6.1, side configuration nut 13.1, open nut during the normal pressure closed drainage of pleural cavity, to keep consistent with ambient pressure.
During use, can be by lancet or tether through being arranged on fixing hole 11 on the fixing head 12 and being fixed on bedside or guiding and supporting.
Use this device should carry out the sterile working, the operating procedure brief description is as follows:
1, detect pipeline: (1), the connection of confirming originally to install pipes are tight, and the side of the three way cock between one-way exhaust valve and the air-bag module is closed; (2), connect the joint of pipe detector and negative pressure switch, bleed, the ball float in this moment pressure limiting valve is inhaled and is floated, and the interior latex balloon of latex balloon is sunken.
2, connect the vacuum suction pipe and regulate negative pressure: after the success of detection pipeline, connect the vacuum suction pipe, regulate vacuum extractor and attract negative pressure and/or negative pressure switch, the stage casing that makes the interior ball float of pressure limiting valve reach inner core gets final product.Negative pressure is regulated and is finished; As row normal pressure closed drainage of pleural cavity, preferably open three way cock's side connects intrathoracic drain again.
3, connect intrathoracic drain: whether should observe the patient this moment uncomfortable reaction, and suitably regulates the attraction negative pressure according to individual reaction.
4, continuous negative pressure pleural cavity closed drainage device observation item: behind (1), the successful implementation continuous negative pressure closed drainage of pleural cavity, should observe the active situation of interior latex balloon of air-bag module and the ball float in the pressure limiting valve; (2), observe aerothorax as need and discharge situation, earlier open negative pressure switch starts vacuum suction, treat that latex balloon is sunken after, close negative pressure, this moment as thoracic cavity have pneumatosis to discharge, the latex balloon in the air-bag module is gradually heaved and is then pointed out the thoracic cavity that the pneumatosis discharge is arranged; The general nothing of latex balloon when negative pressure switch is open in the air-bag module obviously swells, and swells obviously as this latex balloon under the negative pressure, and discharge capacity is more outward then to point out in the thoracic cavity air-flow, should analyze reason; (3), the ball float in the pressure limiting valve obviously floats under negative pressure switch or the atmospheric exhaust as closing, then point out in the thoracic cavity output of pneumatosis more.
5, the management of drainage bottle: drainage bottle storage liquid should press from both sides when reaching 1000mL and close intrathoracic drain and close negative pressure switch, disconnects the thoracic cavity side connector afterwards, pours out liquid in the drainage bottle, connects behind the evacuation liquid and open closed thoracic drainage tube again, and opens negative pressure switch.Notice that when falling liquid should prevent the flow direction one-way exhaust valve!
6, other using method: (1), pneumothorax need be closed negative pressure switch as carrying out the normal pressure closed drainage of pleural cavity, preferably turn on the nut of the three way cock's side between one-way exhaust valve-air-bag module, to communicate with atmosphere.The normal pressure chest drainage is judged when the thoracic cavity has or not pneumatosis to discharge, and can tighten the nut of three way cock's side, and the negative pressure switch place uses pipe detector or starts vacuum suction takes out flat latex balloon, closes negative pressure switch, and discharge if any gas this moment, and latex balloon should gradually swell.(2), the hydrothorax closed drainage of pleural cavity, operational approach is with pneumothorax normal pressure closed drainage of pleural cavity.
Claims (10)
1, a kind of anhydrous mute pleural cavity closed drainage device, it is characterized in that comprising drainage bottle (1) and one-way exhaust valve (2), described one-way exhaust valve (2) comprises valve body (2.1), the gas outlet of the air inlet of valve body (2.1) and drainage bottle (1) is tightly connected, the gas outlet of valve body (2.1) connects first drainage tube (6.1), is provided with sealing damping diaphragm (2.3) and ventilative sponge (2.4) in the described valve body (2.1).
2, anhydrous mute pleural cavity closed drainage device according to claim 1, it is characterized in that being provided with air-bag module (3), described air-bag module (3) comprises air bag (3.2) and transparent cylindrical shell (3.1), air bag (3.2) places in the transparent cylindrical shell (3.1), the last lower interface of transparent cylindrical shell (3.1) (7.3,7.4) is tightly connected with first drainage tube (6.1) and second drainage tube (6.2) respectively, and the sidewall of transparent cylindrical shell is provided with air inlet (3.4).
3, anhydrous mute pleural cavity closed drainage device according to claim 2, it is characterized in that being provided with pressure limiting valve (4), one end of pressure limiting valve (4) is connected with air-bag module (3) lower interface (7.4) by second drainage tube (6.2), and the other end of pressure limiting valve (4) connects the 3rd drainage tube (6.3).
4, according to claim 2 or 3 described anhydrous mute pleural cavity closed drainage devices, it is characterized in that being provided with three way cock (13) between described one-way exhaust valve (2) and the air-bag module (3), three way cock's (13) upper and lower side is connected with air-bag module (3) with one-way exhaust valve (2) respectively by first drainage tube (6.1), side configuration nut (13.1).
5, anhydrous mute pleural cavity closed drainage device according to claim 3 is characterized in that being provided with in described the 3rd drainage tube (6.3) negative pressure switch (5).
6, according to claim 3 or 5 described anhydrous mute pleural cavity closed drainage devices, it is characterized in that described pressure limiting valve (4) comprises ball float (4.1), inner core (4.2), urceolus (4.4), decompression sponge sheet (4.3), decompression sponge sheet (4.3) places inner core (4.2) top, ball float (4.1) is positioned at the below of decompression sponge sheet (4.3), the upper and lower side of inner core (4.2) is provided with the sealing ring (4.5) of its internal diameter less than the ball float external diameter, inner core (4.2) upper end is tightly connected with the 3rd drainage tube (6.3), and urceolus (4.4) lower end and second drainage tube (6.2) are tightly connected.
7, according to claim 1 or 2 or 3 or 5 described anhydrous mute pleural cavity closed drainage devices, it is characterized in that described valve body (2.1) lower seal end also is provided with latex diaphragm (2.2), latex diaphragm (2.2) is circular, central authorities are circular hole.
8, anhydrous mute pleural cavity closed drainage device according to claim 4 is characterized in that described valve body (2.1) lower seal end also is provided with latex diaphragm (2.2), and latex diaphragm (2.2) is circular, and central authorities are circular hole.
9,, it is characterized in that described ventilative sponge (2.4) central authorities are the turbination air flue according to claim 1 or 2 or 3 or 5 described anhydrous mute pleural cavity closed drainage devices.
10, anhydrous mute pleural cavity closed drainage device according to claim 4 is characterized in that described ventilative sponge (2.4) central authorities are the turbination air flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100622038A CN101518660B (en) | 2008-06-05 | 2008-06-05 | Anhydrous mute pleural cavity closed drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100622038A CN101518660B (en) | 2008-06-05 | 2008-06-05 | Anhydrous mute pleural cavity closed drainage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101518660A true CN101518660A (en) | 2009-09-02 |
| CN101518660B CN101518660B (en) | 2011-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100622038A Expired - Fee Related CN101518660B (en) | 2008-06-05 | 2008-06-05 | Anhydrous mute pleural cavity closed drainage device |
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| CN (1) | CN101518660B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055362A (en) * | 2011-10-19 | 2013-04-24 | 郑则广 | Device for curing pneumothorax |
| CN105664273A (en) * | 2016-02-02 | 2016-06-15 | 青岛市第三人民医院 | Anhydrous noiseless chest closed drainage device |
| CN105939737A (en) * | 2014-01-30 | 2016-09-14 | 美德乐控股公司 | Thorax drainage device |
| CN106963998A (en) * | 2017-03-16 | 2017-07-21 | 中国人民解放军第二军医大学第二附属医院 | A kind of device for automatically controlling drainage flow |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4675010A (en) * | 1985-10-04 | 1987-06-23 | American Omni Medical, Inc. | Thoracic drainage collection system and method |
| ATE108669T1 (en) * | 1989-06-09 | 1994-08-15 | Sherwood Medical Co | DEVICE FOR CHEST DRAINAGE. |
| CN2115799U (en) * | 1992-04-16 | 1992-09-16 | 胡永方 | Disposable closed drainage device for pleuroperitoneal cavity |
| CN2488514Y (en) * | 2001-07-26 | 2002-05-01 | 丁占勤 | Closed drainage system for thoracic cavity |
| CN2654127Y (en) * | 2003-09-29 | 2004-11-10 | 王武军 | Multifunction thoracic closed type draining device |
| CN2770665Y (en) * | 2004-12-21 | 2006-04-12 | 殷桂林 | War-wound trauma portable integral thorax closed drainage device |
| CN201049092Y (en) * | 2007-05-28 | 2008-04-23 | 杨殿金 | Closed intrathoracic drainage device |
| CN201216759Y (en) * | 2008-06-05 | 2009-04-08 | 欧阳金生 | Waterless mute closed drainage device for thoracic cavity |
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2008
- 2008-06-05 CN CN2008100622038A patent/CN101518660B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055362A (en) * | 2011-10-19 | 2013-04-24 | 郑则广 | Device for curing pneumothorax |
| CN105939737A (en) * | 2014-01-30 | 2016-09-14 | 美德乐控股公司 | Thorax drainage device |
| CN105939737B (en) * | 2014-01-30 | 2018-05-18 | 美德乐控股公司 | Chest drainage equipment |
| CN105664273A (en) * | 2016-02-02 | 2016-06-15 | 青岛市第三人民医院 | Anhydrous noiseless chest closed drainage device |
| CN105664273B (en) * | 2016-02-02 | 2018-12-28 | 青岛市第三人民医院 | A kind of anhydrous mute pleural cavity closed drainage device |
| CN106963998A (en) * | 2017-03-16 | 2017-07-21 | 中国人民解放军第二军医大学第二附属医院 | A kind of device for automatically controlling drainage flow |
| CN106963998B (en) * | 2017-03-16 | 2023-11-07 | 中国人民解放军第二军医大学第二附属医院 | Device capable of automatically controlling diversion quantity |
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| Publication number | Publication date |
|---|---|
| CN101518660B (en) | 2011-02-16 |
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