CN107050537A - Adjustable negative pressure drainage system - Google Patents
Adjustable negative pressure drainage system Download PDFInfo
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- CN107050537A CN107050537A CN201710314986.3A CN201710314986A CN107050537A CN 107050537 A CN107050537 A CN 107050537A CN 201710314986 A CN201710314986 A CN 201710314986A CN 107050537 A CN107050537 A CN 107050537A
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- Prior art keywords
- drainage
- pressure
- air inlet
- tube body
- film
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Classifications
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- A61M1/0023—
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- A61M1/0001—
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/73—Suction drainage systems comprising sensors or indicators for physical values
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/84—Drainage tubes; Aspiration tips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0464—Cerebrospinal fluid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
- A61M2205/7536—General characteristics of the apparatus with filters allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgery (AREA)
- External Artificial Organs (AREA)
Abstract
The present invention relates to a kind of drainage system, especially a kind of drainage system of adjustable negative pressure belongs to the technical field of medicine equipment.The technical scheme provided according to the present invention, the adjustable negative pressure drainage system, including drainage tube body and the drainage inlet positioned at the drainage tube body one end；Also include the drainage-fluid memory and the drainage pressure regulating mechanism between drainage inlet and drainage-fluid memory for being used to house draining fluids, the drainage pressure regulating mechanism includes the check valve for controlling drainage-fluid flow direction and the air inlet film that blocks water for the air inlet into drainage-fluid memory, and the air inlet film that blocks water is located between check valve and drainage-fluid memory.Compact conformation of the present invention, can effectively realize negative pressure regulation during drainage, it is ensured that the reliability of negative pressure drainage.
Description
Technical field
The present invention relates to a kind of drainage system, especially a kind of drainage system of adjustable negative pressure belongs to medicine equipment
Technical field.
Background technology
Medicine and Surgery liquid drain is particularly significant, and it is avoided that diffusate in otch, omission timber or other liquid are stockpiled, and keeps away
Exempt from these liquid as good bacteria culture media and trigger wound infection, it is to avoid liquid caused otch both sides tissue nothing after stockpiling
Method contact otch can not normally heal, be also avoided that in the drainage of some significant points local pressure increase caused by other simultaneously
Send out disease.
At present, gravity drainage pipe is when implementing drainage, pressure that drainage pressure is depended mainly in drainage lumens, drainage tube
The vertical drop gone out between drainage lumens position and drainage-fluid storage container.Drainage pressure is pressure and drainage in drainage lumens
The pressure sum that liquid difference in height is produced.
And in some drainages, drainage pressure can not be negative pressure, serious complication otherwise can be caused to occur, such as：Lumbar vertebrae
Puncture in drainage of cerebrospinal fluid, once negative pressure drainage does not have timely discovery to handle, drainage of cerebrospinal fluid can be caused to be lost in excessive, cause encephalic
Pressure pressure declines, and can cause hernia cerebri, possible threat to life；Drainage or during through sphenotresia drainage after cerebral surgery operation, brain
Spinal fluid may be connected with drainage tube, once now negative pressure drainage does not have timely discovery to handle, cerebrospinal fluid can be caused to be lost in excessive, caused
Encephalic negative pressure occurs, and can cause hernia cerebri, possible threat to life., it is necessary to ensure drainage-fluid storage container in these drainages
Height be located at and drainage tube drainage outlet close positions, i.e. drainage container must be placed at drainage tube drainage outlet where
In horizontal plane.When placing drainage container it has to be taken care that avoiding being placed on drainage container into relatively low position.But in clinical practice
In, because the personnel of participative management are extremely complex, including doctor, nurse, nurse, family members etc., once do not manage in place, just
Can occur drainage-fluid storage container being placed on lower position causes cerebrospinal fluid negative pressure drainage, and intracranial pressure will occur for time slightly length
It is too low, or even occur hernia cerebri, threaten patient vitals' safety.
In addition, in the presence of a shared phenomenon being exactly that drainage pressure can not accurate adjustment in current drainage.Drainage negative pressure
It is excessive drainage speed to be caused too fast, various unexpected generations may be caused, such as：Thoracic surgery drain pleural effusion pressure is excessive to lead
Complex metalwork is caused, the excessive drainage of seroperitoneum negative pressure pressure is too fast may to cause heart failure.
A kind of gravity drainage pipe of urgent clinical needs can accurately set drainage pressure value, when drainage cavity pressure is more than setting value
When, drainage intracavity liquid normally flows out；When drainage cavity pressure is less than setting value, drainage is temporarily interrupted.It can thus avoid
The unexpected negative pressure value drainage of non-setting, it is to avoid drainage speed is too fast or unexpected negative pressure drainage caused by surprisingly occur.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art there is provided a kind of drainage system of adjustable negative pressure,
Its compact conformation, can effectively realize negative pressure regulation during drainage, it is ensured that the reliability of negative pressure drainage.
According to the technical scheme that provides of the present invention, the adjustable negative pressure drainage system, including drainage tube body and it is located at
The drainage inlet of the drainage tube body one end；The drainage-fluid memory that also includes being used for housing draining fluids and positioned at drawing
The drainage pressure regulating mechanism between inlet and drainage-fluid memory is flowed, the drainage pressure regulating mechanism includes drawing for control
The check valve of flow liquid flow direction and the air inlet film that blocks water for the air inlet into drainage-fluid memory, the air inlet film that blocks water are located at single
To between valve and drainage-fluid memory.
The other end of the drainage tube body is provided with drainage connector, and the air inlet film that blocks water is installed on drainage tube body by film seat
Upper or be directly arranged in the tube wall of drainage tube body, check valve is located in drainage tube body, and check valve is located at drainage inlet and resistance
Water air inlet is intermembranous, and extraneous gas can be entered in the tube chamber between check valve and drainage connector by the air inlet film that blocks water.
Clip sleeve pipe is cased with the drainage tube body, the clip sleeve pipe is provided with clip.
When the air inlet film that blocks water is installed in drainage tube body by film seat, in addition to the Air sac cover being adapted to film seat, institute
Air sac cover is stated provided with air blowing capsule, after Air sac cover is enclosed on film seat above, the air inlet film that blocks water can be blown using air blowing capsule.
The drainage pressure regulating mechanism includes drainage pressure and adjusts connecting leg, and the ventilated membrane that blocks water is installed on drainage by film seat
Pressure is adjusted on connecting leg or is directly arranged in the tube wall of drainage pressure regulation connecting leg；
By the ventilated membrane that blocks water so that the two ends of drainage pressure regulation connecting leg form drainage feed liquor connection end and drawn respectively
Efflux connection end, check valve be located at drainage feed liquor connection end in, drainage pressure adjust connecting leg by drainage feed liquor connection end with
Drainage tube body is connected, and drainage pressure regulation connecting leg is connected by draining liquid connection end with drainage-fluid memory.
When the air inlet film that blocks water is installed on drainage pressure regulation connecting leg by film seat, in addition to the gas being adapted to film seat
Cuff, the Air sac cover is provided with air blowing capsule, and after Air sac cover is enclosed on film seat above, the air inlet film that block water can be blown using air blowing capsule
Gas.
The outer wall of the drainage feed liquor connection end is provided with drainage feed liquor connector, the outer wall for draining liquid connection end and set
Drain liquid connector.
Advantages of the present invention：Extraneous gas can be entered in drainage-fluid memory using the ventilated membrane that blocks water, and utilize drainage feed liquor
Mouth adjusts the Fluid pressure of drainage-fluid with the intermembranous distance of the air inlet that blocks water, according to the relation between Fluid pressure and atmospheric pressure, it is determined that
Whether need to drainage-fluid whether drainage, can realize in drainage pressure regulation with control, improve drainage in controllability with
Reliability, compact conformation implements easy to operate, cost is low.
Brief description of the drawings
Fig. 1 implements structural representation for a kind of of the present invention.
Fig. 2 is another implementation structural representation of the invention.
Fig. 3 be Fig. 2 in embodiment when drainage pressure regulating mechanism schematic diagram.
Fig. 4 is the cooperation schematic diagram between Air sac cover of the present invention and film seat.
Description of reference numerals：1- drainage tube bodies, 2- drainages inlet, 3- block water air inlet film, 4- check valves, 5- clips,
6- clips sleeve pipe, 7- drainage-fluid memories connecting leg, 8- drainage-fluids memory, 9- films seat, 10- drainage feed liquors connector, 11-
Drainage feed liquor connection end, 12- drain liquid connection end, 13- and drain liquid connector, 14- Air sac covers, 15- air blowings capsule and 16-
Drainage pressure adjusts connecting leg and 17- drainage connectors.
Embodiment
With reference to specific drawings and examples, the invention will be further described.
In order to be able to effectively realize negative pressure regulation during drainage, it is ensured that the reliability of negative pressure drainage, the present invention includes drainage tube
Body 1 and for housing the drainage-fluid memory 8 of draining fluids, in addition to be arranged between drainage tube body 1 and drainage-fluid memory 8
Drainage pressure regulating mechanism；The drainage pressure regulating mechanism include being arranged in drainage tube 1 be used to controlling drainage-fluid unidirectional to
The check valve 4 of drainage in drainage-fluid memory 8 and the air inlet film that blocks water being arranged between check valve 4 and drainage-fluid memory 8
3。
Specifically, the end of drainage tube body 1 sets drainage-fluid import 2, and the drainage-fluid import 2 can be set and drainage tube
The side wall of body 1 or end, drainage tube body 1 are placed in by being provided with one end of drainage inlet 2 and treat the position of drainage, and drainage-fluid leads to
Crossing drainage inlet 2 can enter in drainage tube body 1, finally be entered into the drainage-fluid in drainage tube body 1 by drainage-fluid memory 8
Row is housed, and drainage-fluid memory 8 can typically use drainage bag or drainage bottle, can specifically be selected as needed, herein
Repeat no more.
When it is implemented, having when between the position height and drainage-fluid memory 8 where the drainage inlet 2 of drainage tube body 1
There is certain difference in height, and drainage-fluid memory 8 is when being located at the lower section of drainage tube body 1, drainage tube body 1 and drainage-fluid memory 8
Between can form certain pressure differential, pressure differential between the two can be conducive to effective progress of drainage；But not all hand
Art operation is both needed to for a long time using the pressure differential between drainage tube body 1 and drainage-fluid memory 8, such as in cranial surgery surgical drainage.
When the pressure differential existed between drainage tube body 1 and drainage-fluid memory 8 is for the pressure differential of non-anticipation or because abnormal operation causes
When drainage tube body 1 has pressure differential with drainage-fluid memory 8, the pressure in drainage can be effectively realized using drainage pressure regulating mechanism
Power is adjusted.
In the embodiment of the present invention, cause that the liquid in the drainage lumens in patient's body can only through drainage tube body 1 by check valve 4
The unidirectional direction to drainage-fluid memory 8 is flowed, and the drainage-fluid flowed out by check valve 4 can not be backflowed again by check valve 4 again
To the drainage lumens of patient body.Drainage-fluid is not only, outside gas can not also enter the drainage lumens of patient by check valve 4
It is interior；Can not backflow enters drainage tube to fluid (fluid includes gas and liquid) i.e. between check valve 4 and drainage-fluid memory 8
Body 1 has in the tube chamber of the one end of drainage-fluid import 2, so as to avoid backflowing into patient's body through the fluid that check valve 4 flows out
In drainage lumens.
Therefore, after extraneous gas is entered in drainage tube body 1 by the air inlet film 3 that blocks water, it is impossible to entered by check valve 4 and drawn
Flow tube body 1 is correspondingly arranged in the tube chamber of the one end of drainage inlet 2, will not be entered in the drainage lumens in patient's body, can only be to drainage
The side one-way flow of liquid memory 8, is eventually entered into drainage-fluid memory 8.
In use, because the outer of air inlet film 3 that block water is placed in air, the outside pressure for the air inlet film 3 that blocks water is equal to air
Press and invariable.When the drainage cavity fluid in patient's body enters in drainage tube body 1 and flows through corresponding with the air inlet film 3 that blocks water
During position, can alternately occur following four situation：
If the pressure for the inner side of air inlet film 3 that 1., blocks water is more than atmospheric pressure, drain fluids are gas, and drain fluids can be through blocking water
Air inlet film 3 is discharged air or entered in drainage-fluid memory 8.The block water inner side of air inlet film 3 is specifically referred to and blocked water outside air inlet film 3
The just corresponding position in side, it is described to be located at the just corresponding position in the outside of air inlet film 3 that blocks water in drainage tube body 1.
If the pressure for the inner side of air inlet film 3 that 2., blocks water is more than atmospheric pressure, if drain fluids liquid, because blocking water, air inlet film 3 is permitted
Perhaps gas can be passed through freely and liquid-tight feature, and the drainage-fluid in drainage tube body 1 can not overflow through the air inlet film 3 that blocks water
Go out outside drainage tube body 1, the drainage tube body 1 that the side of liquid memory 8 can only be closed on along the air inlet film 3 that blocks water enters drainage-fluid memory 8
It is interior, it is ensured that normal drainage process.
If the pressure for the inner side of air inlet film 3 that 3., blocks water is equal to atmospheric pressure, no matter drain fluids will not be through for liquid or gas
The air inlet film 3 that blocks water is discharged, meanwhile, ambient atmos will not also enter in drainage tube body 1 through the air inlet film 3 that blocks water.
If the pressure for the inner side of air inlet film 3 that 4., blocks water is less than atmospheric pressure, no matter drain fluids will not be through for liquid or gas
The air inlet film 3 that blocks water is discharged；Meanwhile, ambient atmos can enter in drainage tube body 1 through the air inlet film 3 that blocks water, due to the work of check valve 4
With ambient atmos are final after entering only to be entered in drainage-fluid memory 8.
Usually, the Fluid pressure in the drainage lumens within the initial drainage stage, patient's body is larger.Fluid in drainage lumens
When blocking water 3 inner side of air inlet film through in the entrance drainage tube body 1 of drainage inlet 2, fluid is flowed through, block water the fluid inside pressure of air inlet film 3
Power, which is more than, to block water the atmosphere outside pressure of air inlet film 3, now, can occur 1. 2. two kinds described above according to drain fluids property difference
Situation, smoothly can carry out drainage to the fluid in drainage lumens.
With the continuous progress of drainage, the Fluid pressure in drainage lumens in patient's body progressively declines, while the air inlet that blocks water
The Fluid pressure of the inner side of film 3 also synchronously declines.When the fluid pressure drop in drainage lumens is to certain value, now, block water air inlet
The Fluid pressure of the inner side of film 3 is equal to the atmosphere outside pressure of air inlet film 3 that blocks water, so that 3. above-mentioned situation will occur, block water air inlet
Outside pressure reaches balance in film 3.
The outside pressure balance in air inlet film 3 that blocks water is unendurable, and one is entered with patient respiratory, body be dynamic, in drainage lumens
Step produces liquid or other factorses occur, and the Fluid pressure in drainage lumens can change.
Drain fluids in one end tube chamber of drainage inlet 2 are set if the Fluid pressure in drainage lumens diminishes, in drainage tube body 1
Simultaneous Pressure diminishes；In theory, check valve 4 can block drain fluids pressure change to conduct to a certain extent, but can not be complete
Block the conduction of drain fluids pressure change.I.e. drainage tube body 1 sets drain fluids pressure in one end tube chamber of drainage inlet 2 also same
Step diminishes, and the pressure simply diminished is extremely faint.Although the inside pressure of air inlet film 3 that blocks water change is extremely faint, block water air inlet
Outside pressure balance is destroyed in film 3, and the atmosphere outside of air inlet film 3 that blocks water pressure is more than fluid inside pressure, now, described above
4. situation will occur.Certainly, if check valve 4 has blocked the conduction of drain fluids pressure change completely, now draw in check valve 4
Stream Fluid pressure is held equal to atmospheric pressure, and now, 3. situation described above is persistently present.
If the Fluid pressure in drainage lumens becomes big, 3. situation described above can regard drain fluids property difference and turn rapidly
It is changed into 1. 2. two kinds of situations.
In the drainage process of any of the above situation, the inside pressure of air inlet film 3 that only blocks water is more than the outside of air inlet film 3 that blocks water
Pressure, drainage can just proceed；Once the inside pressure of air inlet film 3 that blocks water is equal to or less than the atmosphere outside pressure of air inlet film 3 that blocks water
Pressure, drainage is temporarily ceased.
In fact, drainage-fluid exists in the internal cause liquid-column height of drainage tube body 1 difference, blocking water, the inner side of air inlet film 3 is entered with drainage
Hydraulic pressure difference can be produced between liquid mouthful 2, its pressure calculation formula is P=ρ gh, it may be determined that corresponding hydraulic pressure difference, wherein ρ are drainage-fluid
Density, basic and water the equal density of numerical value, g is acceleration of gravity, and h is the vertical of the inner side of air inlet film 3 and drainage inlet 2 that block water
Straight height.ρ and g numerical value is constant, and h maximums are the length of the drainage tube body 1 between air inlet film 3 and drainage inlet 2 of blocking water.If
Drainage-fluid is full of in drainage tube body 1, drainage inlet 2 when can extrapolate the inside pressure of air inlet film 3 that blocks water equal to atmospheric pressure
Peak suction pressure value is ρ gh.
Thus, it is possible to the length of the drainage tube body 1 blocked water by adjustment between air inlet film 3 and drainage inlet 2,
So as to set the peak suction value ρ gh of fluid conduction in drainage lumens, maximum negative pressure drainage value is also not more than during drainage
The numerical value, so as to ensure the security of drainage.
As shown in figure 1, the other end of the drainage tube body 1 is provided with drainage connector 17, the air inlet film 3 that blocks water passes through film seat
9 are installed in drainage tube body 1 or are directly arranged in the tube wall of drainage tube body 1, and check valve 4 is located in drainage tube body 1, unidirectionally
Valve 4 is located between drainage inlet 2 and the air inlet film 3 that blocks water, and extraneous gas can enter check valve 4 and drainage by the air inlet film 3 that blocks water
In tube chamber between connector 17.
In the embodiment of the present invention, drainage tube body 1 is connected by drainage connector 17 with the adaptation of drainage-fluid memory 8, is blocked water
Air inlet film 3 can be directly arranged in the tube wall of drainage tube body 1, or is arranged at by film seat 9 on gravitation body 1.When block water into
Air film 3 is directly arranged at when in the tube wall of drainage tube body 1, it is necessary to set the air inlet film installation that blocks water on the tube wall of drainage tube body 1
Hole, the size of the air inlet film 3 that blocks water and being formed is adapted with the air inlet film mounting hole that blocks water, i.e., using block water air inlet film 3 and
The air inlet film mounting hole that blocks water can realize that extraneous gas enters in drainage tube body 1, also avoid drainage-fluid in drainage tube body 1 from drawing
Overflowed in flow tube body 1.When installed by film seat 9 block water air inlet film 3 when, 9 in a tubular form, film seat 9 is connected film seat with drainage tube body 1
Logical, film seat 9 is convexly equipped with drainage tube body 1.The air inlet film 3 that blocks water is installed in film seat 9, i.e., air inlet film 3 and blocked water using blocking water
Air inlet film mounting hole can realize that extraneous gas enters in drainage tube body 1, also avoid drainage-fluid in drainage tube body 1 from drainage tube
Overflowed in body 1.
Check valve 4 is located between drainage inlet 2 and the air inlet film 3 that blocks water, usually, the neighbouring air inlet film 3 that blocks water of check valve 4,
When drainage connector 17 is connected with drainage-fluid memory 8, extraneous gas enters check valve 4 and drainage by the air inlet film 3 that blocks water
After in tube chamber between connector 17, gas can also enter in drainage-fluid memory 8.
Further, when the air inlet film 3 that blocks water is installed in drainage tube body 1 by film seat 9, in addition to it is suitable with film seat 9
The Air sac cover 14 matched somebody with somebody, the Air sac cover 14 is provided with air blowing capsule 15, after Air sac cover 14 is enclosed on film seat 9, utilizes the energy of air blowing capsule 15
To blocking water, air inlet film 3 is blown.
In the embodiment of the present invention, due to blocking water, air inlet film 3 may be contacted with drainage-fluid, in order to avoid drainage-fluid is blocking water
Assemble on air inlet film 3 and then influence normal using effect, Air sac cover 14 is enclosed on film seat 9,15 pairs block water using air blowing capsule
Air inlet film 3 is blown, by the air blowing to the air inlet film 3 that blocks water, can be gathered in block water drainage-fluid on air inlet film 3 or its
He separates material with the air inlet film 3 that blocks water, as shown in Figure 4.Certainly, when the air inlet film 3 that blocks water is directly arranged in the tube wall of drainage tube body 1
When, the air inlet film 3 that blocks water can also be blown using other inflatable forms.
Implementation structure shown in Fig. 1 can be used for cranial surgery drainage, for the ease of realizing the operation of drainage, the drainage tube
Clip sleeve pipe 6 is cased with body 1, the clip sleeve pipe 6 is provided with clip 5.In the embodiment of the present invention, clip 5 is symmetrical
It is distributed on clip sleeve pipe 6, can be connected using clip 5 with scalp so that fixation during whole 1 drainage of drainage tube body.
When carrying out brain drainage, when there is the pressure differential of difference in height formation between drainage tube body 1 and drainage-fluid memory 8, by blocking water
The adjustment and setting of distance between air inlet film 3, check valve 4 and drainage inlet 2, it is to avoid the transition drainage feelings in cerebral surgery operation
Condition, it is ensured that the security of cerebral surgical drainage.
As shown in Figures 2 and 3, the drainage pressure regulating mechanism includes drainage pressure regulation connecting leg 16, and block water ventilated membrane 3
Drainage pressure is installed on by film seat 9 to adjust on connecting leg 16 or be directly arranged in the tube wall of drainage pressure regulation connecting leg 16；
By block water ventilated membrane 3 so that drainage pressure adjust connecting leg 16 two ends formed respectively drainage feed liquor connection end 11 with
And liquid connection end 12 is drained, check valve 4 is located in drainage feed liquor connection end 11, and drainage pressure regulation connecting leg 16 is entered by drainage
Liquid connection end 11 is connected with drainage tube body 1, and drainage pressure adjusts connecting leg 16 and stored by draining liquid connection end 12 with drainage-fluid
Device 8 is connected.
In the embodiment of the present invention, connecting leg 16 is adjusted by drainage pressure and connected respectively with drainage tube body 1 with drainage-fluid memory 8
Connect, the adjustment for the position of air inlet film 3 that blocks water when the length of drainage tube body 1 is not changed, can be realized, that is, pass through drainage feed liquor
The adjustment of position between mouthfuls 2 and check valve 4, and the air inlet film 3 that blocks water position, pressure during drainage, drainage inlet 2 can be realized
When distance between the air inlet film 3 that blocks water is different, the drainage-fluid entered by drainage inlet 2 is in drainage inlet 2 and the air inlet that blocks water
The Fluid pressure of drainage-fluid between film 3 is different, according to Fluid pressure and the relation of atmospheric pressure, can realize the drainage under different situations
Need.
When it is implemented, adjusted when the air inlet film 3 that blocks water is arranged at drainage pressure on connecting leg 16, and drainage pressure regulation connecting leg
16 when connecting and connect with drainage tube body 1 and drainage-fluid memory 8 respectively, and the air inlet film 3 that blocks water, check valve 4 and drainage are entered
Corresponding matching relation between liquid mouthfuls 2 with it is above-mentioned be directly arranged in drainage tube body 1 it is consistent, specifically may be referred to above-mentioned
Illustrate, here is omitted.
When it is implemented, compared with Fig. 1 implementation structures, check valve 4 and the air inlet film 3 that blocks water being arranged on into drainage pressure and adjusted
Save on connecting leg 16, by the relative position relation for adjusting drainage inlet 2 between the air inlet film 3 that blocks water, difference can be conveniently realized
In the case of drainage pressure regulation.The outer wall of the drainage feed liquor connection end 11 is provided with drainage feed liquor connector 10, drains
The outer wall of liquid connection end 12 is provided with and drains liquid connector 13.Usually, drainage feed liquor connector 10 and drainage tube body are passed through
1 adaptation connection, can be connected by draining liquid connector 13 with the adaptation of drainage-fluid memory 8.In addition, drainage-fluid memory 8 is also
Can with drainage-fluid memory connecting leg 7 with drain liquid connector 13 adaptation be connected.
Further, when the air inlet film 3 that blocks water is installed on drainage pressure regulation connecting leg 16 by film seat 9, in addition to
The Air sac cover 14 being adapted to film seat 9, the Air sac cover 14 is provided with air blowing capsule 15, after Air sac cover 14 is enclosed on film seat 9, utilizes
Air blowing capsule 15 can blow to the air inlet film 3 that blocks water.
Specifically, the matching relationship of the Air sac cover 14, gas cell 15 etc. and film seat 9, and specific effect etc. can be with
With reference to described above, here is omitted.In addition, air admission hole is set on air blowing capsule 15, and the setting one-way membrane in air blowing capsule 15,
The air that can cause outside using one-way membrane can only enter in air blowing capsule 15, and the gas in air blowing capsule 15 is in the effect of one-way membrane
Under will not be discharged to by air admission hole outside air blowing capsule 15, so as to cause 15 pairs of air blowing capsule to block water the continuous air blowing of air inlet film 3.It is single
To the specific engagement process of film and air admission hole known to those skilled in the art, here is omitted.
Extraneous gas of the present invention can be entered in drainage-fluid memory 8 using the ventilated membrane 3 that blocks water, using drainage inlet 2 and
The distance blocked water between air inlet film 3 adjusts the Fluid pressure of drainage-fluid, according to the relation between Fluid pressure and atmospheric pressure, it is determined whether
Need to drainage-fluid whether drainage, the pressure regulation and control in drainage can be realized, improve controllability in drainage with it is reliable
Property, compact conformation, implement it is easy to operate, cost is low.
Claims (6)
1. a kind of adjustable negative pressure drainage system, including drainage tube body (1) and the drainage-fluid memory for housing draining fluids
(8), it is characterized in that：Also include the drainage pressure regulating mechanism being arranged between drainage tube body (1) and drainage-fluid memory (8)；Institute
Stating drainage pressure regulating mechanism is included being arranged in drainage tube (1) for controlling drainage-fluid unidirectional into drainage-fluid memory (8)
The check valve (4) of drainage and the air inlet film that blocks water (3) being arranged between check valve (4) and drainage-fluid memory (8).
2. adjustable negative pressure drainage system according to claim 1, it is characterized in that：The other end of the drainage tube body (1)
Portion is provided with drainage connector (17), and the air inlet film that blocks water (3) is installed in drainage tube body (1) or is directly arranged at by film seat (9)
In the side wall of drainage tube body (1)；Check valve (4) is located in drainage tube body (1), and check valve (4) is located at drainage tube body (1) end
Between drainage inlet (2) and the air inlet film that blocks water (3), extraneous gas can enter check valve (4) and drainage by the air inlet film that blocks water (3)
In tube chamber between connector (17).
3. adjustable negative pressure drainage system according to claim 1, it is characterized in that：The drainage pressure regulating mechanism includes
Drainage pressure regulation connecting leg (16), the ventilated membrane that blocks water (3) is installed on drainage pressure by film seat (9) and adjusts on connecting leg (16) or straight
Connect and be arranged in the tube wall of drainage pressure regulation connecting leg (16)；Drainage pressure is caused to adjust connecting leg by the ventilated membrane that blocks water (3)
(16) two ends form drainage feed liquor connection end (11) and drain liquid connection end (12) respectively；Drainage pressure adjusts connecting leg
(16) it can be connected by drainage feed liquor connection end (11) with drainage tube body (1), and by draining liquid connection end (12) and drainage
Liquid memory (8) is connected；
The check valve (4) is located in drainage feed liquor connection end (11) or positioned at the drainage being connected with drainage feed liquor connection end (11)
In body (1).
4. the adjustable negative pressure drainage system according to Claims 2 or 3, it is characterized in that：The air inlet film that blocks water (3) passes through
When film seat (9) is installed on drainage tube body (1) or drainage pressure regulation connecting leg (16), in addition to the air bag being adapted to film seat (9)
Cover (14), the Air sac cover (14) is provided with air blowing capsule (15), after Air sac cover (14) is enclosed on film seat (9), utilizes air blowing capsule
(15) air inlet film that blocks water (3) can be blown.
5. adjustable negative pressure drainage system according to claim 3, it is characterized in that：Drainage-fluid memory (8) connection
Drainage-fluid memory connecting leg (7) is set；Drainage-fluid memory connecting leg (7) is adapted to draining liquid connection end (12)；The drainage
The outer wall of feed liquor connection end (11) is provided with drainage feed liquor connector (10), drains the outer wall of liquid connection end (12) provided with drawing
Efflux connector (13).
6. adjustable negative pressure drainage system according to claim 4, it is characterized in that：Being set in the air blowing capsule (15) to make
The one-way membrane that gas unidirectional enters in air blowing capsule (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710314986.3A CN107050537A (en) | 2017-05-07 | 2017-05-07 | Adjustable negative pressure drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710314986.3A CN107050537A (en) | 2017-05-07 | 2017-05-07 | Adjustable negative pressure drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107050537A true CN107050537A (en) | 2017-08-18 |
Family
ID=59595995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710314986.3A Pending CN107050537A (en) | 2017-05-07 | 2017-05-07 | Adjustable negative pressure drainage system |
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| Country | Link |
|---|---|
| CN (1) | CN107050537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057989A (en) * | 2019-05-10 | 2019-07-26 | 中国农业科学院兰州畜牧与兽药研究所 | A kind of food safety detection liquid drainage device |
-
2017
- 2017-05-07 CN CN201710314986.3A patent/CN107050537A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057989A (en) * | 2019-05-10 | 2019-07-26 | 中国农业科学院兰州畜牧与兽药研究所 | A kind of food safety detection liquid drainage device |
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