CN209475243U - A kind of negative pressure drainage device - Google Patents
A kind of negative pressure drainage device Download PDFInfo
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- CN209475243U CN209475243U CN201821993905.3U CN201821993905U CN209475243U CN 209475243 U CN209475243 U CN 209475243U CN 201821993905 U CN201821993905 U CN 201821993905U CN 209475243 U CN209475243 U CN 209475243U
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- negative pressure
- pressure drainage
- card slot
- spring card
- drainage
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Abstract
The utility model discloses a kind of negative pressure drainage devices, from top to bottom successively include the firm banking that drainage catheter, the negative pressure drainage ripple tank being connected to drainage catheter and negative pressure drainage ripple tank are cooperatively connected；The firm banking top is equipped with the positioning groove matched with lower spring card slot protrusion；The drainage catheter is equipped with flow control valve.Through the above technical solutions, negative pressure drainage ripple tank can be placed on firm banking, solve the problems, such as the stable in placement of firm banking, and can also reduce the influence caused by negative pressure drainage ripple tank of patient's required activity when being drained using negative pressure drainage ripple tank.
Description
Technical field
The utility model relates to medical instruments fields, and in particular to a kind of negative pressure drainage device.
Background technique
Surgical drainage, which refers to, oozes out the liquid in body cavity, articular cavity, in organ or tissue, including blood, fester, inflammatory
The lead bodies such as object, bile, juice, cyst fluid outer (external drainage) or internal elsewhere (interior drainage) (such as enteric cavity, bladder, blood vessel), from
And reach prevention or treatment since hydrops is to harm caused by body.
The bottom of technical solution disclosed in CN201127744Y, negative pressure drainage ripple tank is connected with recorder jar by switch,
The bottom end of recorder jar is equipped with bleeder valve.Although above-mentioned technical proposal can intuitively observe practical drainage flow, when being not convenient to use
Put.
Technical solution CN204033855U has opened a kind of neck hanging type negative pressure drainage ripple tank, including negative pressure drainage ripple tank
Body, sphere upper end are connected with stomach tube connecting tube and gas vent, and gas vent is equipped with capping, and sphere upper end two sides are respectively equipped with
Lanyard hole is equipped with the first adjustable lanyard and the second adjustable lanyard, the first adjustable extension in two lanyard holes respectively
It is connected between rope and the second adjustable lanyard through attachment device.Such structure, although solving putting for negative pressure drainage ripple tank
It sets, but neck hanging type design will increase the burden of patient.Negative pressure drainage ripple tank body applies restoring force by spring, so that negative pressure is drawn
It flows ripple tank body and obtains negative pressure, elastic force decline of the spring in the later period causes negative pressure drainage ripple tank body negative pressure insufficient, causes to drain
Negative pressure output is unstable.
Negative pressure drainage device mentioned by above scheme, has following defects that
The first, putting when not solving use very well；
The second, in use, will affect the required activity of patient.
Therefore, it is necessary to carry out structure improvement to negative pressure drainage device in the prior art.
Utility model content
The purpose of the utility model is to overcome defects existing in the prior art, provide one kind convenient for fixing, output is steady
Fixed negative pressure drainage device.
In order to realize the above technical effect, the technical solution of the utility model be a kind of negative pressure drainage device, from top to bottom according to
The secondary fixation bottom being cooperatively connected including drainage catheter, the negative pressure drainage ripple tank being connected to drainage catheter and negative pressure drainage ripple tank
Seat；The negative pressure drainage ripple tank includes the expansion corrugated pipe at middle part and distinguishes with expansion corrugated pipe upper and lower ends integrally formed
It is respectively corresponded in the middle part of upper end cover and lower cover, the upper end cover and lower cover and is provided with upper spring card slot and lower spring card slot, institute
It states compression between upper spring card slot and lower spring card slot and is connected with reset spring；The upper spring card slot and lower spring card slot difference
To upper end cover and lower cover outer projection, respective protrusions form upper spring card slot protrusion under outside the upper end cover and lower cover
Spring card slot protrusion；The firm banking top is equipped with the positioning groove matched with lower spring card slot protrusion；It is described to draw
Conductance pipe is equipped with flow control valve.
Through the above technical solutions, negative pressure drainage ripple tank can be placed in solid when being drained using negative pressure drainage ripple tank
Determine on pedestal, solve the problems, such as the stable in placement of firm banking, and can also reduce patient's required activity to negative pressure drainage ripple tank
Caused by influence.
Preferably, the firm banking is in low wide and up narrow cone post shapes, the firm banking upper surface is fixed with
Magnetic connection sheet, the lower cover lower surface is provided with to be connect with the upper cooperation magnetism of magnetic connection sheet cooperation magnetic suck
Piece.Such design, firm banking itself is relatively stable, magnetic connection sheet and the upper cooperation for cooperating magnetic connection sheet, so that
Negative pressure drainage ripple tank and firm banking stable connection.
Preferably, the negative pressure drainage ripple tank top is equipped with hook.Such design is shelved in some inconvenience
Scene can be placed negative pressure drainage ripple tank by way of hanging, in order to adapt to being applicable in for different scenes environment, especially
It is outdoor.
Preferably, being additionally provided with fixedly connected part on the drainage catheter；The fixedly connected part be velcro or
Safety pin.Fixedly connected part connects drainage catheter and patient, is generally fixed on the clothes of patient.Such design, it is ensured that
Patient has a degree of activity in time in use, and the fluctuation of drainage catheter can end at fixedly connected part, no
It will continue to propagate at negative pressure drainage ripple tank, be impacted to working and putting.
Preferably, drainage catheter free end tight fit connection has a flow sub, the flow sub and/or draw
Conductance pipe is equipped with oil suction adhesive plaster.The oil suction adhesive plaster is followed successively by air-permeable layer, blotter coat and adhering layer from outside to inside；The adhesion
If connection, which is equipped with, on layer parches hydraulic fluid port, connection is equipped with several ventilation mouths on the blotter coat.Such structure strengthens negative pressure and draws
The connection of device and patient is flowed, and adhesive plaster fails caused by preventing patient skin fuel-displaced, reduces the workload of medical staff,
Also increase the use feeling of patient.
Preferably, the firm banking bottom is provided with emulsion skidproof layer.Such design can increase fixed bottom
Seat and the connective stability for shelving desktop or plane.
Preferably, the reset spring is internally provided with supplement expanding bag, the supplement expanding bag upper and lower ends point
It is not adhesively fixed with upper spring card slot and lower spring card slot, is placed with elastic expansion bag, the bullet inside the supplement expanding bag
Property expanding bag upper and lower ends respectively correspond be adhesively fixed with supplement expanding bag upper and lower ends respectively；It deposits elastic expansion bag bottom
It is placed with gas and object occurs, cooperation gas is provided at the top of the elastic expansion bag, object occurs, object storage occurs for the cooperation gas
Occur in object storage bag body in cooperation gas, it is Nian Jie with elastic expansion bag top solid that object storage bag body occurs for the cooperation gas
It is fixed；Elastic expansion bag bottom is fixed with drawstring, and the drawstring lower end is fixed with elastic expansion bag bottom, the drawstring upper end
Object storage bag body occurs with cooperation gas to connect.Such design can pass through benefit when recovery spring runs to back segment stroke
It fills expanding bag expansion and restores the insufficient defect of spring force to make up, the output for enabling drainage negative pressure relatively stable.
Preferably, the drawstring upper end is connected with and punctures plate, it is described puncture plate setting object occur in cooperation gas deposit
It puts in bag, the drawstring upper end is rushed across cooperation gas generation object storage bag and connect with plate is punctured；The drawstring upper end and cooperation
Gas occurs object storage bag and passes through heat-sealing connection.Such design can will cooperate gas that object storage occurs by that will puncture plate
Bag punctures, and reacts so that gas generation object meets with cooperation gas generation object, generates gas, elastic expansion bag is swollen, in turn
So that supplement expanding bag swells, the pressure opened is generated to negative pressure drainage ripple tank, increases negative pressure, and Cheng Zhangkai is not after making up spring
The defect of foot, so that negative pressure drainage ripple tank entirely swells, the output of process negative pressure is relatively stable.
Advantages and beneficial effects of the utility model lie in that through the above technical solutions, using negative pressure drainage ripple tank
When drainage, negative pressure drainage ripple tank can be placed on firm banking, solve the problems, such as the stable in placement of firm banking, and can also subtract
Few patient's required activity is influenced caused by negative pressure drainage ripple tank.
Detailed description of the invention
Fig. 1 is the utility model negative pressure drainage device structural schematic diagram；
Fig. 2 is the structural schematic diagram of negative pressure drainage ripple tank；
Fig. 3 is the structural schematic diagram of firm banking；
Fig. 4 is negative pressure drainage device structural schematic diagram (comprising oil suction adhesive plaster)；
Fig. 5 is the schematic cross-sectional view of oil suction adhesive plaster；
Fig. 6 is 2 negative pressure drainage ripple tank internal mechanism schematic diagram of embodiment；
Fig. 7 is that 2 negative pressure drainage ripple tank internal mechanism schematic diagram of embodiment (omits supplement expanding bag, fully opens shape
State)；
Fig. 8 is 2 negative pressure drainage ripple tank internal mechanism schematic diagram of embodiment (omitting reset spring, open completely)；
Fig. 9 is that 2 negative pressure drainage ripple tank internal mechanism schematic diagram of embodiment (omits reset spring, punctures plate and cooperation gas
Body occurs object storage bag body cooperation and punctures state).
In figure: 1, drainage catheter；2, negative pressure drainage ripple tank；3, firm banking；3-1, positioning groove；4, flow is adjusted
Valve；5, velcro；6, flow sub；7, oil suction adhesive plaster；7-1, air-permeable layer；7-2, blotter coat；7-3, adhering layer；8, saturating hydraulic fluid port；
9, ventilation mouth；10, it links up with；11, reset spring；12, expansion corrugated pipe；13, upper end cover；14, lower cover；15, upper spring card slot；
16, lower spring card slot；17, reset spring；18, upper spring card slot protrusion；19, lower spring card slot protrusion；20, magnetic connects
Piece；21, the magnetic connection sheet of upper cooperation；22, expanding bag is supplemented；23, elastic expansion bag；24, object occurs for gas；25, cooperate gas
Object occurs；26, drawstring；27, plate is punctured；28, object storage bag body occurs for cooperation gas.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and cannot be used as a limitation the protection model of limitation the utility model
It encloses.
Embodiment 1
As shown in Fig. 1 and 9, a kind of negative pressure drainage device from top to bottom successively includes that drainage catheter 1 and drainage catheter 1 connect
The firm banking 3 that logical negative pressure drainage ripple tank 2 and negative pressure drainage ripple tank 2 is cooperatively connected；The negative pressure drainage ripple tank 2 wraps
It includes the expansion corrugated pipe 12 at middle part and distinguishes integrally formed upper end cover 13 and lower cover 14 with 12 upper and lower ends of expansion corrugated pipe,
It is respectively corresponded in the middle part of the upper end cover 13 and lower cover 14 and is provided with upper spring card slot 15 and lower spring card slot 16, the upper spring
Compression is connected with reset spring 11 between card slot 15 and lower spring card slot 16；The upper spring card slot 15 and lower spring card slot 16 divide
Upper spring card is not formed to 14 outer projection of upper end cover 13 and lower cover, the upper end cover 13 and 14 outside respective protrusions of lower cover
Geosynclinal convex plays 18 and lower spring card slot protrusion 19；3 top of firm banking is equipped with determines with what lower spring card slot protrusion 19 matched
Position groove 3-1；The drainage catheter 1 is equipped with flow control valve 4.
The firm banking 3 is in low wide and up narrow cone post shapes, and 3 upper surface of firm banking is fixed with magnetic connection
Piece 20,14 lower surface of lower cover are provided with the upper cooperation magnetism connection sheet 21 for cooperating magnetic suck with magnetic connection sheet 20.
2 top of negative pressure drainage ripple tank is equipped with hook 10.
Fixedly connected part is additionally provided on the drainage catheter 1；The fixedly connected part is velcro 5 or safety pin.
The 1 free end tight fit connection of drainage catheter has flow sub 6, the flow sub 6 and/or drainage catheter 1
It is equipped with oil suction adhesive plaster 7.
The oil suction adhesive plaster 7 is followed successively by air-permeable layer 7-1, blotter coat 7-2 and adhering layer 7-3 from outside to inside；The adhering layer
If connection, which is equipped with, on 7-3 parches hydraulic fluid port 8, connection is equipped with several ventilation mouths 9 on the blotter coat 7-2.
3 bottom of firm banking is provided with emulsion skidproof layer.
The reset spring 11 be internally provided with supplement expanding bag 22,22 upper and lower ends of supplement expanding bag respectively with it is upper
Spring card slot 15 and lower spring card slot 16 are adhesively fixed, and are placed with elastic expansion bag 23 inside the supplement expanding bag 22, described
23 upper and lower ends of elastic expansion bag respectively correspond with supplement 22 upper and lower ends of expanding bag be adhesively fixed respectively；The elastic expansion bag
The storage of 23 bottoms has gas that object 24 occurs, and cooperation gas is provided at the top of the elastic expansion bag 23, object 25, the cooperation occurs
Gas occurs object 25 and is stored in cooperation gas generation object storage bag body 28, and object storage bag body 28 and bullet occur for the cooperation gas
Property 23 top of expanding bag is adhesively fixed；23 bottom of elastic expansion bag is fixed with drawstring 26,26 lower end of drawstring and elasticity
23 bottom of expanding bag is fixed, and 26 upper end of drawstring occurs object storage bag body 28 with cooperation gas and connect.
26 upper end of drawstring, which is connected with, punctures plate 27, described to puncture the setting of plate 27 in cooperation gas generation 25 storage bag of object
Interior, 26 upper end of drawstring is rushed across cooperation gas generation 25 storage bag of object and is connect with plate 27 is punctured；26 upper end of drawstring with
Cooperate gas that 25 storage bag of object occurs and passes through heat-sealing connection.
Embodiment 1
A kind of negative pressure drainage device, the negative pressure drainage for from top to bottom successively including drainage catheter 1, being connected to drainage catheter 1
The firm banking 3 that ripple tank 2 and negative pressure drainage ripple tank 2 are cooperatively connected；The negative pressure drainage ripple tank 2 includes the flexible of middle part
Bellows 12 and integrally formed upper end cover 13 and lower cover 14, the upper end cover 13 are distinguished with 12 upper and lower ends of expansion corrugated pipe
It is provided with upper spring card slot 15 and lower spring card slot 16 with respectively corresponding in the middle part of lower cover 14, the upper spring card slot 15 and lower bullet
Compression is connected with reset spring 11 between spring card slot 16；The upper spring card slot 15 and lower spring card slot 16 are respectively to upper end cover 13
With 14 outer projection of lower cover, the upper end cover 13 and 14 outside respective protrusions of lower cover form upper spring card slot protrusion 18 under
Spring card slot protrusion 19；3 top of firm banking is equipped with the positioning groove 3-1 matched with lower spring card slot protrusion 19；Institute
The drainage catheter 1 is stated equipped with flow control valve 4 (identical as on existing perfusion tube).The length of drainage catheter 1 can root
It needs to be arranged according to actual use, it can be from 10-200cm etc..
The firm banking 3 is in low wide and up narrow cone post shapes, and 3 upper surface of firm banking is fixed with magnetic connection
Piece 20,14 lower surface of lower cover are provided with the upper cooperation magnetism connection sheet 21 for cooperating magnetic suck with magnetic connection sheet 20.
The magnetic connection sheet 21 of upper cooperation is embedded in 14 lower surface of lower cover；Magnetic connection sheet 20 is embedded in 3 upper surface of firm banking, excellent
Choosing is with a thickness of 1mm magnetic adsorption plate below.
2 top of negative pressure drainage ripple tank is equipped with hook 10.Metering scale ruler 29 is provided on the firm banking 3
(vertical) is provided with 30 institute of metering pointer being used cooperatively with metering scale ruler 29 (level) on the negative pressure drainage ripple tank 2
It states the needle point of metering pointer 30 and the scale cooperation on metering scale ruler 29 indicates.
When negative pressure drainage ripple tank 2 expand when, metering pointer 30 move up, operator can corresponding reading negative pressure draw
Flow the amount of liquid drained in ripple tank 2.
Fixedly connected part is additionally provided on the drainage catheter 1；The fixedly connected part is velcro 5 or safety pin.
The 1 free end tight fit connection of drainage catheter has flow sub 6, the flow sub 6 and/or drainage catheter 1
It is equipped with oil suction adhesive plaster 7.
The oil suction adhesive plaster 7 is followed successively by air-permeable layer 7-1, blotter coat 7-2 and adhering layer 7-3 from outside to inside；The adhering layer
If connection, which is equipped with, on 7-3 parches hydraulic fluid port 8, connection is equipped with several ventilation mouths 9 on the blotter coat 7-2.Air-permeable layer 7-1 and oil suction
Layer, blotter coat 7-2 is that 7-2 is adhesively fixed with adhering layer, and the fixed position of oil suction adhesive plaster 7 is determined according to the demand for inhaling drainage catheter 1
It calmly, such as if side cheek state is fixed is to go out 10-20cm at nasal cavity away from drainage catheter 1 (stomach tube).
3 bottom of firm banking is provided with emulsion skidproof layer.
Before use, expansion corrugated pipe 12 is in contraction state, reset spring 11 is in compressive state, firm banking 3 is set
In in plane, negative pressure drainage ripple tank 2 is placed on firm banking 3, keep flow control valve 4 be in off state, without gas into
Enter, expansion corrugated pipe 12 is in contraction state.Drainage catheter 1 is fixed on the limbs of patient by velcro 5, and will drainage
The place that need to be drained is inserted into the free end of conduit 1.Then, turn-on flow rate regulating valve 4, expansion corrugated pipe 12 is in reset spring 11
Bounce effect is lower to open, and adjusts flow control valve 4 to required flow velocity, draining fluids enter negative pressure drainage by drainage catheter 1
In ripple tank 2.After completing drainage, flow control valve 4 is closed, extracts drainage catheter 1.
When in use, oil suction adhesive plaster 7 is affixed on patient skin, the discharge liquor of patient skin is entered by saturating hydraulic fluid port 8 inhales
Oil reservoir 7-2, while the setting of ventilation mouth 9 also increases the gas permeability of contact skin, to improve 7 degree of adhesion of oil suction adhesive plaster and patient
Use feeling.The taking when setting of hook 10 is easy to use can also directly hang negative pressure drainage ripple tank 2 to environment sky
In.
Embodiment 2
To advanced optimizing for embodiment 1, the reset spring 11 is internally provided with supplement expanding bag 22, and the supplement is swollen
22 upper and lower ends of swollen bag are adhesively fixed with upper spring card slot 15 and lower spring card slot 16 respectively, put inside the supplement expanding bag 22
It is equipped with elastic expansion bag 23,23 upper and lower ends of elastic expansion bag respectively correspond with supplement 22 upper and lower ends of expanding bag viscous respectively
Connect fixation；23 bottom of the elastic expansion bag storage has gas that object 24 occurs, and is provided with cooperation at the top of the elastic expansion bag 23
Object 25 occurs for gas, and the cooperation gas occurs object 25 and is stored in cooperation gas generation object storage bag body 28, the cooperation gas
Body occurs object storage bag body 28 and is adhesively fixed with 23 top of elastic expansion bag；23 bottom of elastic expansion bag is fixed with drawstring
26,26 lower end of drawstring is fixed with 23 bottom of elastic expansion bag, and object storage bag occurs for 26 upper end of drawstring and cooperation gas
Body 28 connects.22 preferably polytetrafluoroethylene bag of expanding bag is supplemented, it is in strip that the polytetrafluoroethylene (PTFE) bag, which does not have elasticity and seals,
Shape, original state are inside without gaseous state；Elastic expansion bag 23 is preferably latex rubber bag, has preferable elasticity, elongated,
Original state is inside without gaseous state；It is lime stone that object 24, which occurs, for gas, and it is water, lime stone and water that object 25, which occurs, for cooperation gas
Gas is released in reaction when contact, is expanded so that elastic expansion bag 23 expands and further results in supplement expanding bag 22, supplement expansion
22 length of bag are that the length (complete stretched length) after negative pressure drainage ripple tank 2 opens completely is identical, swollen in supplement expanding bag 22
Outside expansionary force is generated to upper spring card slot 15 and lower spring card slot 16 in swollen process, negative pressure drainage ripple tank 2 is forced to be opened
It opens.
26 upper end of drawstring, which is connected with, punctures plate 27, described to puncture the setting of plate 27 in cooperation gas generation 25 storage bag of object
Interior, 26 upper end of drawstring is rushed across cooperation gas generation 25 storage bag of object and is connect with plate 27 is punctured；26 upper end of drawstring with
Cooperate gas that 25 storage bag of object occurs and passes through heat-sealing connection.The half of 26 length of drawstring preferably completely stretched length, when negative pressure is drawn
After stream ripple tank 2 is expanded to complete stretched length half, continuation is opened under the action of reset spring 11, and 26 lower end of drawstring is fixed
With 23 bottom of elastic expansion bag, when drawstring 26 be straightened later upper end puncture plate 27 can will cooperation gas occur object storage bag
Body 28 (preferably opp bags) punctures, and from cooperation gas lime of 25 storage bag of object from outflow, with 23 bottom of elastic expansion bag occurs for water
Stone contact expands, the mistake that supplement expanding bag 22 expands so that elastic expansion bag 23 expands and further results in supplement expanding bag 22
Outside expansionary force is generated to upper spring card slot 15 and lower spring card slot 16 in journey, negative pressure drainage ripple tank 2 is forced to open；Due to
The restoring force of reset spring 11 is gradually reduced with expansion, and the tension for supplementing the expansion of expanding bag 22 gradually enhances, and can mend
Repay the deficiency of spring restoring force.
By reasonably designing, the reacting dose of water and lime stone can just make elastic expansion bag 23 open completely.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
Claims (7)
1. a kind of negative pressure drainage device, which is characterized in that from top to bottom successively include drainage catheter, be connected to drainage catheter bear
The firm banking that pressure drainage ripple tank and negative pressure drainage ripple tank are cooperatively connected；The negative pressure drainage ripple tank includes stretching for middle part
Contracting bellows and integrally formed upper end cover and lower cover, the upper end cover and lower cover are distinguished with expansion corrugated pipe upper and lower ends
Middle part, which respectively corresponds, is provided with upper spring card slot and lower spring card slot, compressing card between the upper spring card slot and lower spring card slot
It is connected to reset spring；The upper spring card slot and lower spring card slot are respectively to upper end cover and lower cover outer projection, the upper end
Respective protrusions form upper spring card slot protrusion and lower spring card slot protrusion outside lid and lower cover；The firm banking top is equipped with
The positioning groove matched with lower spring card slot protrusion；The drainage catheter is equipped with flow control valve.
2. according to negative pressure drainage device described in claim 1, which is characterized in that the firm banking is in low wide and up narrow cone cylindricality
Shape, the firm banking upper surface are fixed with magnetic connection sheet, and the lower cover lower surface is provided with and magnetic connection sheet
Cooperate the upper cooperation magnetism connection sheet of magnetic suck.
3. according to negative pressure drainage device of any of claims 1 or 2, which is characterized in that the negative pressure drainage ripple tank top is equipped with
Hook.
4. according to negative pressure drainage device as claimed in claim 3, which is characterized in that be additionally provided with and be fixedly connected on the drainage catheter
Part；The fixedly connected part is velcro or safety pin.
5. according to negative pressure drainage device as claimed in claim 4, which is characterized in that drainage catheter free end tight fit connection has
Flow sub, the flow sub and/or drainage catheter are equipped with oil suction adhesive plaster.
6. according to the negative pressure drainage device described in claim 5, which is characterized in that the oil suction adhesive plaster is followed successively by ventilative from outside to inside
Layer, blotter coat and adhering layer；If connection, which is equipped with, on the adhering layer parches hydraulic fluid port, connection is equipped with several ventilative on the blotter coat
Mouthful.
7. according to negative pressure drainage device as claimed in claim 6, which is characterized in that the firm banking bottom is provided with emulsion skidproof
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821993905.3U CN209475243U (en) | 2018-11-30 | 2018-11-30 | A kind of negative pressure drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821993905.3U CN209475243U (en) | 2018-11-30 | 2018-11-30 | A kind of negative pressure drainage device |
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| Publication Number | Publication Date |
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| CN209475243U true CN209475243U (en) | 2019-10-11 |
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ID=68117285
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| CN201821993905.3U Active CN209475243U (en) | 2018-11-30 | 2018-11-30 | A kind of negative pressure drainage device |
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| CN (1) | CN209475243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364309A (en) * | 2018-11-30 | 2019-02-22 | 江阴市人民医院 | A kind of negative pressure drainage device |
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2018
- 2018-11-30 CN CN201821993905.3U patent/CN209475243U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109364309A (en) * | 2018-11-30 | 2019-02-22 | 江阴市人民医院 | A kind of negative pressure drainage device |
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