CN104225768B - A kind of multilamellar negative-pressure sealed drainage protects wound device - Google Patents
A kind of multilamellar negative-pressure sealed drainage protects wound device Download PDFInfo
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- CN104225768B CN104225768B CN201410268824.7A CN201410268824A CN104225768B CN 104225768 B CN104225768 B CN 104225768B CN 201410268824 A CN201410268824 A CN 201410268824A CN 104225768 B CN104225768 B CN 104225768B
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Abstract
The present invention provides a kind of multilamellar negative-pressure sealed drainage to protect wound device; including porous foam cushion; one end is positioned at the drainage tube of porous foam cushion; porous foam cushion is MULTILAYER COMPOSITE airfoam cushion; including negative pressure conducting shell and drain protective layer; negative pressure conducting shell is hydrophobic porous sponge layer, and drain protective layer is hydrophilic porous sponge layer, and drainage tube is placed in negative pressure conducting shell；Also including oxygenated fluid flush pipe, oxygenated fluid flush pipe and drainage tube enter porous foam cushion side by side, and drainage tube is positioned at drain protective layer lower surface through porous foam cushion, and its tail end is deep into drain protective layer location, and tube wall is furnished with aperture.The leading-in end of drainage tube and oxygenated fluid flush pipe is fixed by the elastic packing glued membrane floppy disk shared, elastic packing glued membrane floppy disk includes disk and the elastic packing glued membrane to extension bonding with disk, and the flushing having the drain of drainage tube to introduce the mouth of pipe and oxygen liquid flush pipe in the middle part of disk introduces the mouth of pipe.Drainage tube upstream end at porous foam cushion has longitudinal breaking joint, it is simple to introduce mouth of pipe upset.
Description
Technical field
The present invention relates to medical trauma therapeutic device field, specifically, refer to a kind of multilamellar negative pressure envelope
Close drain and protect wound device.
Background technology
Negative-pressure sealed drainage technology (vacuum sealing drainage is called for short VSD) is Germany ULM
University Wim doctor Fleischman initiated in 1992, and formed theoretical blank, created for extremity
The drain in face；Within 1994, negative-pressure sealed drainage technology is applied to department of general surgery by Chinese professor Qiu Huade first,
Started the beginning that negative-pressure sealed drainage technology is applied in department of general surgery, Wang Yanfeng, Qiu Huade professor in
State is in authorized patent CN 2236350 on March 17th, 1997, for negative-pressure sealed drainage technology
First patent.
Existing VSD technology basic configuration includes that negative pressure source (includes that medical suction machine, hospital use
Central negative pressure device or negative pressure drainage vessel etc.), drainage tube, hydrophilic foam or other is medical hydrophobic
Property foamed materials or sponge kind dressing or gauze class dressing (below above-mentioned medical material is referred to as porous bubble
Foam material), Pasting sealing film, drainage container composition.Connect negative pressure source drain, can be by human body
The liquefied materials such as in-house oozing of blood, sepage, the fragment of tissue of liquefaction and necrosis and pus are drained to
In stream container.Slough and toxin, pus etc. can be expelled directly out external by above-mentioned technology, it is to avoid
Toxin heavily absorbs, rapid cleaning wound surface；Meanwhile, high negative pressure attracts to effectively facilitate granulation and give birth to rapidly
Long, shorten wound healing time.Using this technology, patient can be not required to change dressings in 3-7 days, it is to avoid
Cross infection, reduces medical personnel's workload, decreases patient suffering, reduces the lethal of wound
Rate, disability rate.
VSD technology mainly relies on this medical high polymer dressing of porous foam cushion to realize.This
Planting dressing is negative pressure transmitting medium, is also by slough, pus, sepage, other toxicity simultaneously
The material such as product and toxin introduces the drainage medium of drainage tube.In the market for negative-pressure sealed drainage
Foam dressing be broadly divided into two kinds: hydrophobicity dressing and hydrophilic dressing.Hydrophobicity dressing mostly is PU
Foaming materials forms, and foam pores is relatively big, and Penetration ration is higher；Due to the characteristic that it is hydrophobic, in foam
Typically will not be aqueous, therefore negative pressure conductive performance is splendid.Hydrophilic dressing mostly be PVA foaming materials and
Becoming, foam pores is less than hydrophobicity dressing, and material Penetration ration is relatively low, but also can meet negative pressure drainage
The needs for the treatment of；Due to the characteristic that it is hydrophilic, dressing surface can form one layer of water molecule film, it is possible to
Granulation tissue is stoped to grow in dressing, it is to avoid tractive is hemorrhage, and material safety is high.
But above two dressing equal existing defects in clinical practice.Hydrophobicity dressing (PU) due to
Its hydrophobic characteristic, the unprotected layer of material surface, granulation tissue can grow in foam pores, pole
Easily occur tractive hemorrhage；Also due to hydrophobicity dressing (PU) stretching resistance is poor, easily produce chip
Come off, then cause foreign body inflammatory reaction (rejection) and the secondary infection in wound surface wound chamber, because of
There is bigger problem in this material safety.U.S. FDA report display, uses PU dressing, Bing Rencun
In situation that is dead and that increase the weight of wound.Use PU dressing change dressings the cycle short (U.S. FDA report and phase
Close document show not can exceed that three days), cost is high, and the labor intensity of medical personnel is big, and patient is the most bitterly
Bitter.Hydrophilic dressing (PVA) is moistening due to its water-wet behavior, material itself, although it is penetrating
Rate is relatively low, also can meet the treatment requirement of negative pressure drainage, but owing to material is aqueous, therefore it is born
Pressure conductive performance is poor, easily produces negative pressure when large area wound surface uses and conducts weak district, secondly PVA
Easily the most slowly become dry after material dehydration, cause Penetration ration to decline further, weaken therapeutic effect.
Summary of the invention
The technical problem to be solved designs a kind of multilamellar negative-pressure sealed drainage exactly and protects wound device,
Existing negative-pressure sealed drainage can be overcome to protect the defect of traumatic material, while ensureing material safety,
Can be effectively improved its negative pressure conductive performance, in use be not easily blocked, permeability is stable, again
Can have the water-wet behavior of hydrophilic dressing (PVA), utilizing material itself is wettability, improves treatment
Effect.
Technical scheme: a kind of multilamellar negative-pressure sealed drainage of the present invention protects wound device and includes many
Airfoam cushion one end, hole is positioned at the drainage tube of porous foam cushion, and described porous foam cushion is multilamellar
Composite foam cushion, at least includes negative pressure conducting shell and drain protective layer, and negative pressure conducting shell is hydrophobicity
Perforated foams layer, drain protective layer is hydrophilic porous sponge layer, and drainage tube is placed in negative pressure
In conducting shell；Described negative pressure conductive layer thickness is 0.5～10cm, and pore diameter is 1～2.5mm, institute
Stating drain protective layer thickness is 0.1～3.5cm, and pore diameter is 0.2～1mm.
Described multilamellar negative-pressure sealed drainage protects wound device and also includes oxygenated fluid flush pipe, and oxygenated fluid rinses
Pipe and drainage tube enter porous foam cushion side by side, and oxygenated fluid flush pipe is positioned at through porous foam cushion
Drain protective layer lower surface, its tail end is deep into drain protective layer, is positioned at drain protective layer lower surface
It is furnished with aperture on the tube wall of part.
The leading-in end of described drainage tube is fixed by elastic packing glued membrane floppy disk, elastic packing glued membrane floppy disk 2
Including disk and with the elastic packing glued membrane to extension that disk bonds together, have in the middle part of disk and draw
The drain of flow tube introduces the mouth of pipe.
The leading-in end of described oxygenated fluid flush pipe is fixed by elastic packing glued membrane floppy disk, elastic sealant
Film floppy disk includes disk and the elastic packing glued membrane to extension bonded together with disk, in disk
Portion has the flushing of oxygenated fluid flush pipe to introduce the mouth of pipe.
The leading-in end of described drainage tube and oxygenated fluid flush pipe is solid by the elastic packing glued membrane floppy disk shared
Fixed, elastic packing glued membrane floppy disk includes disk and the elastic packing to extension bonded together with disk
Glued membrane, the flushing having the drain of drainage tube to introduce the mouth of pipe and oxygenated fluid flush pipe in the middle part of disk introduces pipe
Mouthful.
Drainage tube upstream end at porous foam cushion has longitudinal breaking joint, longitudinal breaking joint to be positioned at and installation drawn
The position of flow tube, the number of longitudinal breaking joint is identical with drainage tube number, the length of longitudinal direction breaking joint by
Porous foam cushion end face is to the position installed through negative-pressure drainage tube pore.
Described negative pressure conducting shell is the PU bubble of hydrophobic PU foam, eva foam or recombination chitosan
Foam layer；Described drain protective layer be PVA foam, the PVA foam of recombination chitosan or composite antibacterial,
The PVA froth bed of antibacterial medicament.
Preferably, described negative pressure conductive layer thickness is 1～3cm, and pore diameter is 1～1.5mm；Described
Drain protective layer thickness is 0.3～0.5cm, and pore diameter is 0.2～0.5mm.
The present invention have following the most a little: 1., combine both advantages of PU and PVA material, protect
Transparent performance and negative pressure that PU material is good is utilized while having stayed the hydrophilicity that PVA material is good
Conductive performance, thus the limitation of the traditional homogenous material avoided, the combination of bi-material carries greatly
High negative-pressure sealed drainage protects the performance of traumatic material, effectively raises the effect of VSD treatment；②、
Turnover design, can bring into play greatly by the performance of bi-material, can be for different
Wound surface and indication select different materials as drain face, in order to preferably play material property,
Wound healing faster；3., thoroughly solve the leakage problem of drainage tube injection part, ensure
Stablizing of negative pressure, greatly reduces VSD system and the probability of " leak gas " occurs, it is ensured that VSD
The success rate for the treatment of；4., independent rinse-system, " retrograde infection " will not be produced, can be bigger
The flushing wound surface of area and drainage tube, prevent material and blocked drainage tube, facilitates drain, shortens operation
Time, reduce patient painful.
Two-sided use can be carried out while ensureing material safety, combine two for different wound surface types
Plant the feature of material, carry out upset targetedly and use.Its negative pressure conductive performance can be effectively improved,
And using, process operation is simple, good seal, and material is not easily blocked, and permeability is stable, controls
Therapeutic effect is excellent.
Accompanying drawing explanation
Fig. 1 is that the multilamellar negative-pressure sealed drainage of the present invention protects wound apparatus structure schematic diagram.
Fig. 2 is that the multilamellar negative-pressure sealed drainage of the present invention protects wound device top view.
Fig. 3 is the elastic packing glued membrane floppy disk schematic diagram of the present invention.
Fig. 4 is porous foam cushion and longitudinal breaking joint schematic diagram.
Fig. 5 is that the present invention overturns front schematic diagram.
Fig. 6 is schematic diagram after the present invention overturns.
Detailed description of the invention
Describe the performance of the present invention below in conjunction with the accompanying drawings in detail, but they are not intended that the present invention
Restriction, the most for example.Simultaneously by explanation, advantages of the present invention will become clearer from and
Easy to understand.
As shown in Figure 1, Figure 2: the multilamellar negative-pressure sealed drainage of the present invention protects wound device and includes porous foam cushion
1, one end is positioned at the drainage tube 3 of porous foam cushion 1, and described porous foam cushion 1 is multiple for multilamellar
Close airfoam cushion, at least include that negative pressure conducting shell 1a and drain protective layer 1b, negative pressure conducting shell 1a are
Hydrophobic porous sponge layer, drain protective layer 1b is hydrophilic porous sponge layer, drainage tube
3 are placed in negative pressure conducting shell 1a；Described negative pressure conducting shell 1a thickness is 0.5～10cm, pore diameter
Being 1～2.5mm, described drain protective layer 1b thickness is 0.1～3.5cm, and pore diameter is 0.2～1mm.
Described multilamellar negative-pressure sealed drainage protects wound device and also includes oxygenated fluid flush pipe 4, and oxygenated fluid rinses
Pipe 4 and drainage tube 3 enter porous foam cushion 1 side by side, and oxygenated fluid flush pipe 4 is soft through porous foam
Pad 1 is positioned at drain protective layer 1b lower surface, and its tail end is deep into drain protective layer 1b, is positioned at drain and protects
It is furnished with aperture on the tube wall of the part of sheath 1b lower surface.
Fig. 3 is the elastic packing glued membrane floppy disk schematic diagram of the present invention: described drainage tube 3 and oxygenated fluid
The leading-in end of flush pipe 4 is fixed by the elastic packing glued membrane floppy disk 2 shared, elastic packing glued membrane floppy disk 2
Including disk 2a and the elastic packing glued membrane 2b to extension that bonds together with disk 2a, at disk
The drain having drainage tube 3 in the middle part of 2a introduces the flushing of mouth of pipe 3a and oxygenated fluid flush pipe 4 and introduces mouth of pipe 4a.
There is on disk 2a reinforcement 2a1.
Fig. 4 is porous foam cushion and longitudinal breaking joint schematic diagram:
Drainage tube 3 upstream end at porous foam cushion 1 has longitudinal breaking joint 1c, longitudinal breaking joint 1c to be positioned at
To install the position of drainage tube, the number of longitudinal breaking joint 1c is identical with drainage tube 3 number, longitudinally
The length of breaking joint 1c is by porous foam cushion 1 end face to the position installed through negative-pressure drainage tube pore i.e.
Can.
Described negative pressure conducting shell 1a is hydrophobic PU foam, eva foam or recombination chitosan
PU froth bed；Described drain protective layer 1b is PVA foam, the PVA foam of recombination chitosan or answers
Close the PVA froth bed of medicament antibacterial, antibacterial.
Preferably, described negative pressure conducting shell 1a thickness is 1～3cm, and pore diameter is 1～1.5mm；
Described drain protective layer 1b thickness is 0.3～0.5cm, and pore diameter is 0.2～0.5mm.
Drain introduces mouth of pipe 3a and rinses the mouth diameters introducing mouth of pipe 4a less than corresponding drainage tube 3
External diameter with oxygenated fluid flush pipe 4, it is ensured that seal.
Described can the two-layer compound airfoam cushion of two-sided use be composited by PU and PVA bi-material,
After PVA with PU is compound, thickness ratio is for 1:0.5-1:3
Described drain introduce mouth of pipe 3a and rinsing introduce mouth of pipe 4a stretch out with elastic sealant membrane body it
Between angle be 15～90 °.
Described drainage tube be 1 or many evenly distributed, many arrangement time, the spacing of adjacent two
For 2-5cm, when drainage tube is many, many tail ends connect multiple-pass joint.
Described flush pipe be 1 or many evenly distributed, many arrangement time, with adjacent drainage tube
Spacing is 1-5cm.
During installation, drainage tube 3 and oxygenated fluid flush pipe 4 are penetrated by the inner side of longitudinal breaking joint respectively.
Refering to Fig. 5: for product schematic diagram before upset, hydrophobic PU is upper.
The present embodiment is that the negative-pressure sealed drainage of the two-layer compound airfoam cushion of two-sided use protects wound device,
It is provided with the elastic packing glued membrane floppy disk 2 that for piping stretch out sealing identical with drainage tube quantity, coordinates longitudinally
Drainage tube 3 and oxygenated fluid flush pipe 4 can be turned to the other side of composite foam cushion by breaking joint, as
Shown in Fig. 6, hydrophobic PU under, in order to be suitable to some needs having a large amount of transudate in the short time
The wound surface of drain, can improve wound surface environment, wound healing rapidly rapidly.Such as burn wound
And skin grafted wounds.
The core of the present invention is to use porous foam cushion, and every employing negative pressure conducting shell is that hydrophobicity is many
Hole sponge layer, drain protective layer is hydrophilic porous sponge layer, belongs to the present invention's
Protection domain.
Claims (4)
1. multilamellar negative-pressure sealed drainage protects a wound device, including porous foam cushion (1), position, one end
Drainage tube (3) in porous foam cushion (1), it is characterised in that: described porous foam cushion (1)
For MULTILAYER COMPOSITE airfoam cushion, at least include negative pressure conducting shell (1a) and drain protective layer (1b), negative
Pressure conducting shell (1a) is hydrophobic porous sponge layer, and drain protective layer (1b) is that hydrophilic is many
Hole sponge layer, drainage tube (3) is placed in negative pressure conducting shell (1a)；Described negative pressure conducting shell (1a)
Thickness is 0.5～10cm, and pore diameter is 1～2.5mm, and described drain protective layer (1b) thickness is
0.1～3.5cm, pore diameter is 0.2～1mm；Described multilamellar negative-pressure sealed drainage protects wound device and also wraps
Having included oxygenated fluid flush pipe (4), oxygenated fluid flush pipe (4) and drainage tube (3) enter porous side by side
Airfoam cushion (1), oxygenated fluid flush pipe (4) is positioned at drain protection through porous foam cushion (1)
Layer (1b) lower surface, its tail end is deep into drain protective layer (1b), is positioned at drain protective layer (1b)
It is furnished with aperture on the tube wall of the part of lower surface；Drawing of drainage tube (3) and oxygenated fluid flush pipe (4)
Entering end to be fixed by elastic packing glued membrane floppy disk (2) shared, elastic packing glued membrane floppy disk (2) includes
Disk (2a) and the elastic packing glued membrane (2b) to extension bonded together with disk (2a),
Disk (2a) middle part has the drain of drainage tube (3) to introduce the mouth of pipe (3a) and oxygenated fluid flush pipe (4)
Flushing introduce the mouth of pipe (4a).
Multilamellar negative-pressure sealed drainage the most according to claim 1 protects wound device, it is characterised in that:
Drainage tube (3) upstream end in porous foam cushion (1) has longitudinal breaking joint (1c), longitudinal breaking joint (1c)
It is positioned at the position by installing drainage tube, the number of longitudinal breaking joint (1c) and drainage tube (3) number
Identical, the length of longitudinal breaking joint (1c) by porous foam cushion (1) end face to through negative-pressure drainage tube
The position that pore is installed.
Multilamellar negative-pressure sealed drainage the most according to claim 1 and 2 protects wound device, and its feature exists
In: described negative pressure conducting shell (1a) is hydrophobicity PU foam, eva foam；Described drain protective layer
(1b) it is PVA foam.
Multilamellar negative-pressure sealed drainage the most according to claim 1 and 2 protects wound device, and its feature exists
In: described negative pressure conducting shell (1a) thickness is 1～3cm, and pore diameter is 1～1.5mm；Described draw
Stream protective layer (1b) thickness is 0.3～0.5cm, and pore diameter is 0.2～0.5mm.
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| CN201410268824.7A CN104225768B (en) | 2014-06-16 | 2014-06-16 | A kind of multilamellar negative-pressure sealed drainage protects wound device |
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| CN201410268824.7A CN104225768B (en) | 2014-06-16 | 2014-06-16 | A kind of multilamellar negative-pressure sealed drainage protects wound device |
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| CN105250077B (en) * | 2015-11-03 | 2018-08-14 | 中国人民解放军第四军医大学 | A kind of applicator that heart pass postoperative wound infection splits |
| CN105250078B (en) * | 2015-11-03 | 2018-08-14 | 中国人民解放军第四军医大学 | It splits for abdominal operation incision infection and merges the applicator of intestines leakage |
| CN105250076B (en) * | 2015-11-03 | 2018-11-23 | 中国人民解放军第四军医大学 | A kind of infection of abdominal incision, which is split, merges the applicator of gallbladder leakage |
| CN105944221B (en) * | 2016-06-15 | 2020-10-02 | 武汉维斯第医用科技股份有限公司 | Negative pressure closed drainage system for deep cavity wound surface operation nursing |
| CN110393632A (en) * | 2019-07-17 | 2019-11-01 | 稳健医疗用品股份有限公司 | A kind of water repellency dressing and preparation method thereof |
| CN112773927B (en) * | 2020-12-24 | 2022-09-13 | 江苏申思生物科技有限公司 | Efficient and environment-friendly PVA/PU multilayer foam dressing manufacturing method |
| CN115105625A (en) * | 2022-06-22 | 2022-09-27 | 广州华一生物科技有限公司 | Disposable negative pressure drainage wound-protecting combined material and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201643356U (en) * | 2010-05-18 | 2010-11-24 | 朱新生 | Negative pressure drainage device |
| CN201912520U (en) * | 2011-01-17 | 2011-08-03 | 朱新生 | Special soft pad for wound surface rinsing-negative pressure closed drainage |
| CN202086925U (en) * | 2011-03-25 | 2011-12-28 | 张华山 | Dual-functional negative-pressure drainage device |
| CN202113478U (en) * | 2011-06-13 | 2012-01-18 | 朱新生 | Special soft cushion for negative pressure treatment |
| US9393354B2 (en) * | 2011-11-01 | 2016-07-19 | J&M Shuler Medical, Inc. | Mechanical wound therapy for sub-atmospheric wound care system |
| CN202590142U (en) * | 2012-04-24 | 2012-12-12 | 武汉维斯第医用科技有限公司 | Vacuum sealing drainage device with drainage tube provided with washing tube in penetrating manner |
| CN103691010B (en) * | 2013-06-04 | 2016-09-14 | 武汉维斯第医用科技股份有限公司 | Multi-layered foamed dressing for negative-pressure sealed drainage and preparation method thereof |
| CN203408163U (en) * | 2013-08-14 | 2014-01-29 | 朱新生 | Novel compound foam material negative-pressure absorption device |
| CN203525122U (en) * | 2013-09-18 | 2014-04-09 | 苏州爱得科技发展有限公司 | Double-hole type sucker negative pressure drainage device |
| CN204073061U (en) * | 2014-06-16 | 2015-01-07 | 武汉维斯第医用科技股份有限公司 | A kind of multilamellar negative-pressure sealed drainage protects wound device |
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